AIR CONDITIONING

Transcription

AIR CONDITIONING

A/C UNITS
MINI-SPACE
380-415/3/50
INDEX 20
Issue 6.05
AIR CONDITIONING
PRECISION A/C UNITS
OPERATING INSTRUCTIONS
© STULZ GmbH, Hamburg
E/0605/20/2
Contents
Page
1. Safety instructions.................................................................................................. 5
2. Type code .............................................................................................................. 7
3. Description ............................................................................................................ 8
3.1 Design/Refrigeration diagram CCD 41-121 A ............................................... 12
3.2 Design/Refrigeration diagram CCD 171-201 A ............................................. 14
3.3 Design/Refrigeration diagram CCU 41-121 G ............................................... 16
3.4 Design/Refrigeration diagram CCU 171-201 G ............................................. 18
3.5 Application ranges ........................................................................................ 20
4. Technical data ...................................................................................................... 21
4.1 Sound data .................................................................................................... 27
4.2 Electrical connected load .............................................................................. 28
4.3 Unit characteristics, air circuit ........................................................................ 29
4.4 Dimensions ................................................................................................... 34
5. Installation and commissioning............................................................................ 35
5.1 Dismantling and disposal .............................................................................. 44
6. Operation and maintenance................................................................................. 45
7. Causes and elimination of faults .......................................................................... 57
8. Refrigerant piping ................................................................................................ 65
9. Options ................................................................................................................ 74
9.1 Steam humidifier ........................................................................................... 74
9.2 Heating .......................................................................................................... 84
9.3 Raised floor stand ......................................................................................... 86
9.4 Refrigerant circuit option ............................................................................... 89
9.5 Air circuit option ............................................................................................. 92
9.6 Control option .............................................................................................. 107
Appendix ............................................................................................................... 109
Customer service .................................................................................................. 110
E/0605/20/3
These operating instructions are to be read carefully and
complied with before installing and operating the A/C unit.
The male triangular wrench and brief operating instructions
are to be displayed in a visible location in the immediate
vicinity of the A/C unit
It is absolutely essential to comply with the measures listed
in the chapter giving safety instructions.
A/C units of types A, G
have an air conditioning system
which contains refrigerant.
Compressor Phase Rotation!
Both the scroll compressor and fan motor are dependent on correct phase rotation. The scroll compressor and
fan motor will be checked at the factory before dispatch. On site, if the fan rotation (as indicated on the fan
housing) is incorrect, the rotating field of the compressor will also be incorrect. The rotating field must be
corrected by changing two phases of the power supply at the isolator.
E/0605/20/4
1. Safety instructions
General
These operating instructions contain basic information which is to be complied with for installation, operation
and maintenance. They must therefore be read and complied with by the fitter and the responsible trained
staff/operators before assembly and commissioning. They must be permanently available at the place where
the system is used.
Freon 407c refrigerants are used in STULZ A/C units. Refrigerants are volatile, or highly volatile fluorinated
hydrocarbons which are liquefied under pressure. They are incombustible and not hazardous to health when
used as intended.
First aid measures
-
If health problems occur during or after handling fluorinated hydrocarbons, a doctor is to be consulted
immediately. The doctor is to be informed that the work involved the use of fluorinated hydrocarbons.
In the case of acute effects, the casualty is to be brought into the fresh air as quickly as possible.
The casualty must never to be left unsupervised.
If the casualty is not breathing, initiate mouth-to-mouth resuscitation immediately.
If the casualty is unconscious or very dazed he or she must not be given any liquid.
Splashes of fluorinated hydrocarbons in the eyes can be blown out or fanned out by an assistant.
Then rinse with water.
Notes for the doctor:
Do not give any preparations from the adrenalin ephedrine group (nor any
noradrenaline) to treat shock.
Attain further information from the poison accident centres.
Handling refrigerants
The following measures are to be complied with when handling refrigerants:
- Refrigerants have a narcotic effect when inhaled in high concentrations.
- Safety glasses and safety gloves are to be worn.
- Do not eat, drink or smoke at work.
- Liquid refrigerant must not get onto the skin (risk of burns).
- Only use in well ventilated areas.
- Do not inhale refrigerant vapours.
- Warn against intentional misuse.
- It is absolutely essential to comply with the first aid measures if accidents occur.
Installation of refrigerant systems
It is absolutely essential to comply with the following measures when installing refrigerant systems:
- Pressure-test the system with nitrogen
- Eliminate leaks in refrigerant systems immediately.
- Do not allow refrigerant to escape in to the atmosphere during filling and repair work.
- Ensure extraction or good ventilation in enclosed areas.
- The room is to be evacuated immediately if high concentrations of refrigerant suddenly occur. The
room may only be entered again after adequate ventilation.
- If unavoidable work is required in the presence of a high concentration of refrigerant, breathing
apparatus must be worn. This does not mean simple filter masks. Comply with breathing protection
data sheet.
E/0605/20/5
-
-
The refrigerant is to be extracted before soldering and welding work on refrigerant systems.
Only carry out welding and soldering work on refrigerant systems without refrigerant in properly
ventilated areas.
If there is a pungent odour, the refrigerant has decomposed due to overheating. Leave the room
immediately. The room may only be entered after proper ventilation or only with a filter mask for
acidic gases.
Refrigerants containing FCs contribute to the global warming and must be disposed of in accordance
with the regulations, i.e. only by companies specially qualified under § 191 of the water resources
management law and licensed as recognised disposal companies for refrigerants.
Personnel qualification and training
The personnel responsible for operation, maintenance, inspection and assembly must have the appropriate
qualifications for this work.
Hazards resulting from non-compliance with the safety instructions
Non-compliance with the safety instructions can endanger personnel and the system. Non-compliance with
the safety instructions result in the forfeiture of any claims for damage.
Safety-conscious work
The safety instructions listed in these operating instructions, national regulations in force on accident prevention,
as well as company work, operating and safety instructions must be complied with.
Safety instructions on maintenance, inspection and assembly work
The operator must ensure that all maintenance, inspection and assembly work is carried out by authorised and
qualified specialist staff who have made an in-depth study of the operating instructions.
Work on the system is only to be carried out when it is shut down. It is absolutely essential to comply with the
procedure for shutting down the system described in the operating instructions.
Before maintenance work, the A/C unit must be switched off at the master switch and a warning sign displayed
to prevent unintentional switching-on.
The master switch must be checked to ensure the A/C unit is in the de-energized state. The preliminary
measures in the "Installing/commissioning" section are to be complied with before recommissioning.
Independent conversion and manufacture of replacement parts
The system may only be converted or modified after consultation with STULZ. Original replacement parts and
replacement parts/accessories authorised by STULZ are an aid to safety.
Unacceptable operating methods
The operating safety of the system is only guaranteed when it is used as intended (see operating instructions,
page 8). The limit values stipulated in the technical data must not be exceeded under any circumstances.
E/0605/20/6
2. Type code
The type code represents the unit variant of your A/C unit and can be found on the rating plate.
The rating plate is located in
the door in front of the
electrical compartment.
Product range
Blow-out direction
Output of unit
Number of refrigeration circuits
Type of design
Explanation
C
C
D
20
1
Unit variants
A
A,G
1
4, 6, 8, 12, 17, 20
D,U
CC = Compact Clima
Page code
E / 0605 / 20 / 7
Page code:
D - German
E - English
F - French
U - US English
Page
number
Date of issue
month/year
Index
number
E/0605/20/7
3. Description
General
This A/C unit is used for the air conditioning of rooms. It is available in various designs, as described under
method of operation. The A/C unit is to be installed in accordance with the "Assembly/commissioning" section.
The A/C unit is only operated via the controller.
Intended use
The A/C unit is used to control room temperature and air humidity. Any use beyond this is not deemed to be
use as intended. STULZ is not liable for any damage resulting from such misuse. The operator alone bears the
risk.
Design of an A/C unit
The A/C unit is divided into three areas, an air, water and
electrical section.
The evaporator, the expansion valve, the fan and the
optional electrical heating are housed in the air section.
The air to be cooled is drawn in by the fan and flows
through the evaporator.
All the electronics and electrics to control and monitor
the A/C unit are located in the electrical section. All the
wiring of the A/C unit comes together in the electrical
section and is connected here.
The compressor, collector, condenser and the G-units as
well as various fittings and pressure switches are housed
in the low temperature section.
E/0605/20/8
Electrical
section
Air section
Refrigerant
section
Basic components/function of refrigerant circuit
The refrigeration circuit of the A/C unit consists of a compressor, a condenser, an expansion valve and an
evaporator. These components are connected by pipelines to a sealed refrigerant circuit. The compressor is
used to compress the refrigerant and maintain the refrigerant flow. The heat of the refrigerant is given up in the
condenser. The expansion valve with pressure compensation is used as a throttling component in the refrigerant
circuit. The evaporator extracts the heat from the air flowing through. All components of the refrigerant circuit
are designed for a maximum operating pressure of 25 bar. On air conditioning units of type A (A-units), the
condenser is not in the A/C unit but located externally.
The heat of the room is absorbed by the gaseous low temperature refrigerant in the evaporator. The gaseous
refrigerant is compressed in the compressor and enters the condenser. The condenser gives up the heat
absorbed and liquefies the refrigerant which is under high pressure. The liquid refrigerant enters the expansion
valve and is from there conducted back to the evaporator at low pressure and low temperature. Thus low
pressure and low temperature prevails in the evaporator whilst high pressure and high temperature exist in the
condenser.
Dehumidifying economy circuit
The A/C units of the upper capacity range (17 and 20 kW) are equipped with a dehumidify-ing economy circuit.
Here approx. one third of the evaporator is switched off via a solenoid valve. As a result the evaporation
temperature of the refrigerant is reduced and the air flowing past the evaporator falls below the dew point. The
moisture contained in the air condenses in the evaporator and is carried away.
At the A/C units of the lower capacity range (4 to 12 kW) a dehumidification is achieved by a reduction of the
air flow. The fan speed can be adjusted manually, a precise description of the function can be found in the
section "operation and maintenance" on page 45.
E/0605/20/9
Method of operation of A/C unit
There are the design types A and G in the MINI-SPACE A/C units, the method of operation is as shown below,
in respect of heat flow:
Method of operation of type A A/C unit
Air conditioned room
Condenser
Evaporator
A/C unit
The room air drawn in by the fan flows
through the evaporator. In this process heat
is drawn from the room air and given up to
the refrigerant. The refrigerant gives up the
heat to the outside air via an external aircooled condenser. The A/C unit and the
external condenser are connected with
each other by a sealed refrigerant circuit.
Room air
Refrigerant
Outside air
Method of operation of type G A/C unit
Air conditioned room
Drycooler
Evaporator
Condenser
A/C unit
Room air
Refrigerant
Cooling water
Outside air
E/0605/20/10
The room air drawn in by the fan flows
through the evaporator. In this process heat
is drawn from the room air and given up to
the refrigerant. The refrigerant gives up the
heat to a water/glycol mixture via a
condenser con-tained in the A/C unit. The
cooling water flows through an air-cooled
external dry cooler which gives up the heat
to the outside air.
Air flow
A distinction is made between downflow and upflow A/C units. On downflow units the room air is drawn into the
A/C unit from above and passed down into the raised floor. On upflow units the room air is drawn in from the
front of the A/C unit and passed upwards.
Downflow
Upflow
Room air/return air
Supply air
Room air/return air
Supply air
Preventative safety devices
The A/C units have various safety devices to avoid malfunctions. A non-return valve is fitted in the liquid line
on A-units which prevents backflow of refrigerant into the condenser. In the liquid line of all units there is a filter
drier, a sight glass and a solenoid valve which shuts off the refrigerant flow when the A/C unit is shut down.
Safety devices
The A/C unit is protected against insufficient operating pressure by a low-pressure switch. If the operating
pressure is fallen below, a warning signal appears on the display and the A/C unit is put out of operation. A
high-pressure switch is triggered at an excessive operating pressure of 24.5 bar and switches off the compressor.
A warning signal on the display of the controller appears. A safety valve is fitted on the collector as the last link
in the chain, which opens at a pressure of 27.5 bar.
E/0605/20/11
3.1 Design of CCD 41 - 121 A
(Downflow)
17
11
19
10
18
1
16
15
6
14
5
12
13
4
E/0605/20/12
3
7
Refrigeration diagram CCD/U 41 - 121 A
14
13
12
7
to external
condenser
11
10
6
5
4
12
3
8
8
1
15
1.
2.
3.
4.
5.
6.
7.
8.
9.
Fan
Motor
Compressor
Filter drier
Sight glass
Solenoid valve in liquid line
Collector
Schrader valve
-
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
16
Expansion valve
Evaporator
Shutoff valve
Safety valve
Non-return valve (liquid line)
Low-pressure pressostat
High-pressure pressostat
Temp./humidity sensor (behind elec. compart.)
Master switch
Electrical compartment
E/0605/20/13
3.2 Design of CCD 171/201 A
(Downflow)
17
11
9
10
19
1
2
16
15
6
5
14
7
4
12
3
E/0605/20/14
Refrigeration diagram CCD/U 171/201 A
14
12
13
8
7
11
10
9
6
5
to external
condenser
4
3
8
1
15
1.
2.
3.
4.
5.
6.
7.
8.
9.
Fan
Motor
Compressor
Filter drier
Sight glass
Collector
Rotalock valve
Dehumidifier valve
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
Rotalock valve
only at CCD/U
201
16
Expansion valve
Evaporator
Shutoff valve
Safety valve
Non-return valve (liquid line)
Master switch
E/0605/20/15
3.3 Design of CCU 41 - 121 G
(Upflow)
16
1
18
10
17
9
15
14
6
13
5
12
4
11
E/0605/20/16
3
7
Refrigeration diagram CCD/U 41 - 121 G
12
19
11
7
10
13
9
6
5
4
3
8
1
8
14
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Fan
Motor
Compressor
Filter drier
Sight glass
Collector
Schrader valve
Expansion valve
Evaporator
11.
12.
13.
14.
15.
16.
17.
18.
19.
15
Shutoff valve
Safety valve
Condensor
Master switch
Vent valve
E/0605/20/17
3.4 Design of CCU 171/201 G
(Upflow)
16
2
1
8
10
18
9
15
6
5
13
4
7
11
3
E/0605/20/18
Refrigeration diagram CCD/U 171/201 G
12
11
7
19
10
13
9
8
6
5
4
3
20
1
14
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Fan
Motor
Compressor
Filter drier
Sight glass
Collector
Dehumidifier valve
Expansion valve
Evaporator
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
20 Rotalock
valves only at
CCD/U 201
15
Shutoff valve
Safety valve
Condensor
Master switch
Vent valve
Rotalock valve
E/0605/20/19
3.5 Application Ranges
The STULZ MINI-SPACE units are provided for
operation within the following ranges:
- Room conditions:
Between 18°C, 45% R.H. and 27°C, 55% R.H.
- Outdoor ambient conditions:
lower limit: -10°C
upper limit: 35°C
- Air flow:
nominal values are listed in the tables
on the pages 21-26.
- Voltage:
400 +/- 10%
- Frequency:
50 Hz +/- 1%
E/0605/20/20
- Hot water conditions for optional heating coil:
max. inlet water temperature: 110°C
max. water head pressure: 8.5 bar
- Max. length of piping between A/C unit and air
cooled condenser: 30m equivalent.
- Max. level difference between condenser and
A/C unit: 3m (when condenser is below the
A/C unit).
- Storage conditions: between -20°C and +35°C
The warranty is invalidated for any possible damage
or malfunction that may occur during or in
consequence of operation outside the application
ranges.
4. Technical Data CCD/U 41
CCD/U 41
A
CCD/U 41
G
Evap. cool. capacity (total/sensible)
With return air at 24°C/50% RH
kW
kW
4.9/4.6
4.4/4.4
4.9/4.6
4.4/4.4
Fan
Volume flow
External pressure D/U
Motor nominal output
m³/h
Pa
kW
2000
50/40
0.37
2000
50/40
0.37
Compressor
Model
Refrigerant charge R407c
kW
l
Scroll
1.5
1.0**
Scroll
1.5
2.4
°C
°C
m³/h
kPa
Air
KSV 006
32
2400
-
30%Glycol
B 10x60
39
45
1.08
1.1
kPa
-
3-way
3/4''
5.5
mm
mm
EU4
Filter mat
640/570/20
972/395/20
EU4
Filter mat
640/570/20
972/395/20
kW
2
1
2
1
Steam humidifier (option)
Capacity
kg/h
1,5-3,0
1,5-3,0
General unit data
Electrical connection
Weight
Width/Height/Depth
V/-/Hz
kg
mm
380-415/3/50/N
180
600 / 1850 / 600
380-415/3/50/N
185
600 / 1850 / 600
Condenser
Cooling medium
Model
Medium inlet temperature
Medium outlet temperature
Volume flow
Pressure drop, condenser/CW coil and
piping
Control valve
Size
Pressure drop, valve
Filter
Quality
Design
Width/Height/Depth - D
Width/Height/Depth - U
Electrical reheat (option)
Heating capacity
No of stages
* The electrical power consumption of the fan is to be added to the room load.
** only with running test, otherwise with protective nitrogene filling
E/0605/20/21
Technical Data CCD/U 61
CCD/U 61
A
CCD/U 61
G
kW
kW
6.8/6.2
6.2/6.0
6.8/6.2
6.2/6.0
Fan
Volume flow
m³/h
Pa
kW
2000
50/40
0.37
2000
50/40
0.37
Compressor
Model
kW
l
Scroll
1.9
1.0**
Scroll
1.9
2.4
°C
°C
m³/h
kPa
Air
KSV 008
32
3500
-
30%Glycol
B 10x60
39
45
1.4
1.8
kPa
-
3-way
3/4''
9
mm
mm
EU4
Filter mat
640/570/20
972/395/20
EU4
Filter mat
640/570/20
972/395/20
Condenser
Cooling medium
Model
Output
Volume flow
piping
Control valve
Size
Filter
Quality
Design
Heating capacity
No of stages
kW
2
1
2
1
Capacity
kg/h
1,5-3,0
1,5-3,0
General unit data
Width/Height/Depth
V/-/Hz
kg
mm
380-415/3/50/N
185
600 / 1850 / 600
380-415/3/50/N
190
600 / 1850 / 600
E/0605/20/22
CCD/U 81
A
CCD/U 81
G
kW
kW
8.9/8.0
8.0/7.6
8.9/8.0
8.0/7.6
Fan
Volume flow
m³/h
Pa
kW
2000
50/40
0.37
2000
50/40
0.37
Compressor
Model
kW
l
Scroll
2.5
1.0**
Scroll
2.5
2.4
°C
°C
m³/h
kPa
Air
KSV 012
32
4300
-
30%Glycol
B 10x60
39
45
1.78
2.9
kPa
-
3-way
3/4''
15
mm
mm
EU4
Filter mat
640/570/20
972/395/20
EU4
Filter mat
640/570/20
972/395/20
kW
2
1
2
1
Capacity
kg/h
1,5-3,0
1,5-3,0
General unit data
Weight
Width/Height/Depth
V/-/Hz
kg
mm
380-415/3/50/N
190
600 / 1850 / 600
380-415/3/50/N
195
600 / 1850 / 600
Condenser
Cooling medium
Model
Volume flow
piping
Control valve
Size
Filter
Quality
Design
Heating capacity
No of stages
E/0605/20/23
CCD/U 121
A
CCD/U 121
G
kW
kW
12.4/11.0
11.5/11.0
12.4/11.0
11.5/11.0
Fan
Volume flow
m³/h
Pa
kW
3200
50/40
0.55
3200
50/40
0.55
Compressor
Model
kW
l
Scroll
2.9
1.0**
Scroll
2.9
2.4
°C
°C
m³/h
kPa
Air
KSV 016
32
6800
-
30%Glycol
B 10x60
39
43
3.49
11
kPa
-
3-way
3/4''
57
mm
mm
EU3
Filter mat
640/570/20
972/395/20
EU3
Filter mat
640/570/20
972/395/20
kW
4
1
4
1
Capacity
kg/h
1,5-3,0
1,5-3,0
General unit data
Weight
Width/Height/Depth
V/-/Hz
kg
mm
380-415/3/50/N
200
600 / 1850 / 600
380-415/3/50/N
205
600 / 1850 / 600
Condenser
Cooling medium
Model
Volume flow
piping
Control valve
Size
Filter
Quality
Design
Heating capacity
No of stages
E/0605/20/24
CCD/U 171
A
CCD/U 171
G
kW
kW
17.8/17.0
16.6/16.4
17.8/17.0
16.6/16.4
Fan
Volume flow
m³/h
Pa
kW
6000
70
2.2
6000
70
2.2
Compressor
Model
kW
l
Scroll
4.4
2.0**
Scroll
4.4
3.2
°C
°C
m³/h
kPa
KSV 021
32
6500
-
30%Glycol
B 25x50
39
45
3.57
21
kPa
-
3-way
3/4"
59
mm
mm
EU4
Filter mat
870/970/20
975/650/20
EU4
Filter mat
870/970/20
975/650/20
kW
2x6
2
2x6
2
Capacity
kg/h
1,5-3,0
1,5-3,0
General unit data
Weight
Width/Height/Depth
V/-/Hz
kg
mm
380-415/3/50/N
220
1000 / 1850 / 810
380-415/3/50/N
225
1000 / 1850 / 810
Condenser
Cooling medium
Model
Volume flow
Pressure drop, condenser and piping
Control valve
Size
Filter
Quality
Design
Heating capacity
No of stages
E/0605/20/25
CCD/U 201
A
CCD/U 201
G
kW
kW
22.6/20.9
20.7/20.1
22.6/20.9
20.7/20.1
Fan
Volume flow
m³/h
Pa
kW
7000
70
2.2
7000
70
2.2
Compressor
Model
kW
l
Scroll
5.5
2.0**
Scroll
5.5
3.4
°C
°C
m³/h
kPa
KSV 036
32
13600
-
30%Glycol
B 25x50
39
45
4.34
31
kPa
-
3-way
3/4"
88
mm
mm
EU4
Filter mat
870/970/20
975/650/20
EU4
Filter mat
870/970/20
975/650/20
kW
2x6
2
2x6
2
Capacity
kg/h
1,5-3,0
1,5-3,0
General unit data
Weight
Width/Height/Depth
V/-/Hz
kg
mm
380-415/3/50/N
230
1000 / 1850 / 810
380-415/3/50/N
235
1000 / 1850 / 810
Condenser
Cooling medium
Model
Volume flow
Pressure drop, condenser and piping
Control valve
Size
Filter
Quality
Design
Heating capacity
No of stages
E/0605/20/26
4.1 Sound data
Sound level in dB (A)
Unit size
CCD
CCU
41 A/G
45
47
Upflow
2000
M
61 A/G
45
47
81 A/G
45
47
121 A/G
48
50
171 A/G
55
57
201 A/G
57
59
1000
Downflow
2000
M
1000
The data are valid at a height of 1m and distance of 2m in front of the unit under free field conditions and with
nominal data. The values take into account the effects of all installation and design parts contained in the
standard unit. The values are due to the noise, which is emitted through the suction opening and the unit
casing.
The noise which is emitted through the discharge opening is not taken into account. It is presupposed that the
discharge noise is muffled by appropriate measures in the raised floor (downflow units) or in the discharge duct
(upflow units).
The data for the upflow units are intended for a mounted discharge duct.
The sound levels stated can be further reduced by suitable attenuation measures determined by individual
site conditions.
E/0605/20/27
4.2 Electrical connected loads
380-415V / 3Ph / 50Hz
Components
max. current consumption [Amp]
CCD/U
41
A/G
L1
L2 L3
L1
L2 L3
L1
L2 L3
1~
—
3,3 —
—
3,3 —
—
3,3 —
—
5,5 —
3~
3,3 3,3 3,3
4,3 4,3 4,3
5,9 5,9 5,9
7,3 7,3 7,3
2~
3,2
— 4,8
3,2
— 4,8
3,2
— 4,8
8,0
— 8,0
1~
—
— 12,7
—
— 12,7
—
— 12,7
—
— 12,7
3,3 6,6 3,3
4,3 7,6 4,3
5,9 9,2 5,9
6,5 6,6 8,1
7,5 7,6 9,1
9,1 9,2 10,7 15,3 12,8 15,3
3,3 6,6 16,0
4,3 7,6 17,0
5,9 9,2 18,6
CCD/U
171
A/G
CCD/U
201
A/G
5,1
12,3
5,1
13,4
8,7
17,3
4,2
8,7
17,3
4,2
18,4
27,1
35,7
23,6
19,5
28,2
36,8
24,7
6 kW
2x6 kW
6 kW
2x6 kW
E/0605/20/28
CCD/U
121
A/G
L2 L3
max. current consumption [Amp]
Fan
CCD/U
81
A/G
L1
Components
Key:
CCD/U
61
A/G
Compressor
El. heater
7,3 12,8 7,3
7,3 12,8 20,0
Steam humidifier
4.3 Unit characteristics, air circuit
Design example for the fan speed
The units CCD/U 41-121 have a fan which is directly driven by a
motor without a v-belt. The speed and thus the air flow can
exclusively be modified by the speed controller (see page 46).
By means of this example it is explained how the fan speed and
power requirement at the shaft are determined from the fan curve for
a CCD 201 A/G A/C unit.
Given:
(A) Air volume 5000 m3/h
(B) p external 75 Pa
Required:
(D) Pressure loss of the unit
(E) Overall pressure loss
(F) Fan speed
(G) Power requirement at the shaft
PROCEDURE:
Establish the intersection point (C) of the air volume (A) and the unit
characteristics and determine the pressure loss of the unit:
determined value (D) = 240 Pa
Add the Pressure loss of the unit (D) and the external pressure (B):
(D)+(B)= (E)
determined value (E): 240 + 75 = 315 Pa
The operating point (H) is at the intersection point of air volume (A)
5000 m3/h and the overall pressure loss (E) 315 Pa.
Read off the fan speed (F): 800 rpm
Read off the power requirement at the shaft (G): 0.62 kW
E/0605/20/29
Unit characteristics, air circuit for CCD/U 41-81
(unit characteristics = internal pressure drop in unit)
SP [Pa]
RPM
1500
1450
1400
500
1350
1300
1250
1200
1150
1100
400
1050
300
200
mA
5000
4500
4000
100
3500
3000
2500
2000
0
1500
0
0
1000
2000
100
3000 Q[m³/h]
200
Factor for dynamic pressure: Downflow = 1.6, Upflow with duct connection = 1.0
E/0605/20/30
300
Pd[Pa]
Unit characteristics, air circuit for CCD/U 121
RPM
1000
SP [Pa]
400
950
900
850
800
300
750
Input W
1200
1100
1000
900
200
800
700
600
500
400
mA
6000
5500
100
5000
4500
4000
3500
3000
2500
2000
0
0
0
1000
2000
100
3000
200
300
4000
400
500
600
Q[m³/h]
700
Pd[Pa]
Factor for dynamic pressure: Downflow = 1.6, Upflow with duct connection = 1.0
E/0605/20/31
Unit characteristics, air circuit for CCD 171/201
Fan size: AT 12 - 12
Characteristic curve :
E/0605/20/32
Air flow range: 3500 - 7500 m³/h
Unit characteristics, air circuit for CCU 171/201
Fan size: AT 12 - 12
Characteristic curve :
Air flow range: 3500 - 7500 m³/h
E/0605/20/33
4.4 Dimensions
(in mm)
1850
CCD/U 41-121
220
600
600
1850
CCD/U 171/201
370
1000
E/0605/20/34
810
5. Installation and commissioning
Delivery of units
Stulz A/C units are mounted on pallets and packed several times in plastic film. They must always be transported
upright on the palettes.
The following information can be found on the packing.
1) Stulz logo
2) Stulz order number
3) Type of unit
4) Packing piece - contents
5) Warning symbols
Construction of protective covering
(from inside to outside)
1.
2.
3.
Neopole cushioning
Shrink film
Additional board in container
shipments
also upon request
6) Gross weight
7) Net weight
8) Dimensions
9) Customer order number
10)
Additional customer requirements
When delivery is accepted, the unit is to be checked against the delivery note for
completeness and checked for external damage. The delivery note can be found on the A/
C unit when delivered.
Space required for unit installation
1500 mm
1300 mm
All assembly and maintenance work can be carried out from the front of the A/C unit once the units have been
installed. Observe the clearance required for maintenance as shown below.
700 mm
1100 mm
CCD/U 41 - 121
CCD/U 171/201
E/0605/20/35
Pipelines and cable conduits
All pipelines and electric cables are to be routed through the six openings in the right-hand side-panel of the
unit types 41-121 or six openings in the left-hand side panel of the unit types 171/201. The pipes to be
connected must be soldered on A-type units. On all other versions of the units the pipe connection is designed
as a screwed pipe connection.
CCD/U 41 - 121 A
Unit
D3
41 A
61 A
81 A
121 A
285
285
285
290
pressure line
liquid line
D3
condensate line
215
320
295
300
340
H
H
CCD 280
CCU 170
50
View from behind
210
Pressure line
Liquid line
CCD/U CCD/U
41-81 121
O 12
E/0605/20/36
16
CCD/U
41-121
O 10
CCD/U 171/201 A
pressure line
liquid line
D3
165
150
D2
75
condensate line
D1
Front view
Unit
H
50
171 A
201 A
H
CCD 350
CCU 160
D1
D2
D3
550 285 270
575 65 525
View from behind
210
Liqid line
CCD/U
171-201
70
CCD/U
171 201
O 16 22
2
O 16
120
Pressure line
x
55 70
50
4
x
32
70
E/0605/20/37
CCD/U 41 - 121 G
Unit
E1
E2
E3
41 G
61 G
81 G
121 G
170
170
170
120
70
70
70
70
190
190
190
190
A1
A2
A3
130
130
130
140
70
70
70
65
125
125
125
120
41 G
61 G
81 G
121 G
Inlet
Outlet
E3
A3
E2
A2
condensate line
A1
E1
View from behind
H
50
H
CCD 280
CCU 170
210
Inlet/Outlet
Unit
CCD/U 41-81
CCD/U 121
E/0605/20/38
D
22
28
D
CCD/U 171/201 G
Inlet
240
120
Outlet
175
510
condensate line
255
600
View from behind
H
50
H
CCD 350
CCU 160
210
Inlet/Outlet
x
50
4
x
32
28
120
70
2
55 70
70
E/0605/20/39
Installing the A/C unit
Installation sequence
Intake duct
4
Refer to manufacturer's documentation
Louvered flap
3
For assembly, refer to "Louvered flap"
options
A/C unit
2
Described below
Raised floor stand
1
For assembly, refer to "Raised floor
stand" options
Installing the A/C unit
Check the A/C unit to ensure it is complete and not damaged. If the A/C unit is incomplete or damaged, please
contact STULZ customer service.
Transport the complete A/C unit to the installation point.
The A/C unit must only be transported upright.
Transport the complete A/C unit to the installation point or onto the existing raised floor stand (option).
Ensure that all electric cables, condensate-water connections and water connections (on G-units only) are
already routed to the A/C unit or to the individual modules and are ready for connection.
G-Units :
If the water quality is insufficient, we recommend the additional installation of a strainer.
Connect the cooling-water pipes as follows:
Remove the protective caps from the flanges of the water pipes.
Water pipes are only fitted on the G units.
E/0605/20/40
Unit type
Thread
41-121
171/201
R 1"
R 1 1/2"
Water remaining from the test run may escape when
the protective caps are removed.
Insert the seals and screw on the flanges of the water pipes.
If any seals have got lost, these may only be replaced
by glycol-resistant rubber seals.
Flanged connection
Insulate the water pipes with the insulating material supplied.
The insulation material required is included with the
respective module as a supplementary pack.
Screw the water pipes of the A/C unit together with the local water pipes
of the dry cooler or the water chiller.
Insulation of water pipes
Fill and bleed the cooling-water circuit.
A filling connection and several schrader valves for
bleeding are fitted to the A/C unit. Refer to refrigeration/
piping diagram.
All Units :
Connect the condensate water drains to the local waste water
system.
33 mm
Comply with the regulations of the local water supply
authority.
E/0605/20/41
A-Units :
Connect the pipelines carrying refrigerant to the external condensor (refer to section on "refrigerant
piping").
The refrigerant-conducting pipelines are only to be connected by an authorised specialist.
Comply with the safety instructions at the start of these operating instructions.
A refrigerant pipe to the external condensor is only
required on A-units.
Connection diameter of the copper pipelines of the A/C unit (in
mm):
Unit types:
Pressure line:
Liquid line:
41 - 81
12
10
121
16
10
171
16
16
201
22
16
pressure
line
liquid line
Fill the refrigerant circuit with refrigerant. (Refer to refrigerant piping
section). For this, the solenoid valve in the liquid line must be
energized (24 V AC).
Position of refrigerant connections
Ensure that the electric cables are de-energized.
The electric cables are only to be connected by an
authorised specialist.
Route the electric cable into the electrics box from below and connect
them to the master switch in accordance with the wiring diagram
(Appendix).
E/0605/20/42
The A/C unit must be installed and connected in
accordance with the chapter on "installation of A/C unit"
before initial commissioning.
Open the electrical compartment door of the A/C unit using the key
provided.
Check whether all power switches and control-circuit fuses in the electrical
section of the A/C unit are switched off.
Power switch OFF
Control-circuit fuses
Master switch
Power switch
Switch on the A/C unit at the master switch.
Caution. Electric cables and electrical components of
the A/C unit are live.
non calibrated range
Switch on the control-circuit fuses and the power switches of the fan and
the compressor in sequence as well as the built-in options in accordance
with the wiring diagram. The wiring diagram can be found in the "Appendix".
Do not turn the adjustment screw beyond the end of the
calibrated scale range, as it may result in overheating
and short-circuit at the consumer.
Power switch ON
E/0605/20/43
If your A/C unit is equipped with additional options,
further measures on initial commissioning are to be
found in the "Options" section.
CompTrol 1002
Switch on the A/C unit at the controller.
Controller C1002
Let the A/C unit operate for approx. 1 hour while paying attention to
any unusual noises.
Check the level of refrigerant in the sight glass on A-type A/C units.
If bubbles are continuously visible in the sight glass,
top up the refrigerant circuit with refrigerant in
accordance with the chapter "refrigerant piping".
G-units are equipped with a sealed refrigerant circuit
in the A/C unit which has been checked and approved
by the factory.
Set the required specified values for room temperature and air humidity
on the controller of the A/C unit. Refer to Controller Manual.
Sight glass
5.1 Dismantling and disposal
The A/C unit can only be dismantled by qualified specialists.
Switch off the A/C unit at the controller and at the master switch.
Disconnect the A/C unit from the de-energized network.
Dispose of the refrigerant in the A/C unit in accordance with the disposal and safety regulations applicable on
site (refer to chapter on refrigerant piping).
If fitted, disconnect the depressurized refrigerant lines, the depressurized cooling water pipes and the condensate
water drainage pipes from the A/C unit.
Dispose of the A/C unit in accordance with the disposal and safety regulations applicable on site. We recommend
a recycling company for this. The A/C unit basically contains the raw materials aluminium (evaporator), copper
(pipelines, wiring), and iron (panelling, mounting panel).
E/0605/20/44
6. Operation and maintenance
Switching the A/C unit on and off
The A/C unit is only to be switched on when it has been installed in accordance with the
"assembly and commissioning" section, connected correctly and commissioned for the
first time.
The A/C unit is switched on and off by pressing the on/off button
on the controller.
The complete functional sequence of the A/C unit is controlled
and monitored by the controller.
The actual values of room temperature/humidity are shown on the
display when the A/C unit is switched on.
CompTrol 1002
The fan runs on for approx. 3 minutes when the
A/C unit is switched off.
Controller C1002
Switching off the complete A/C unit
The complete A/C unit is switched off via the controller and via
the built-in master switch. To do this, open the electrical
compartment and put the master switch in position "0".
Operating the A/C unit
The A/C unit is operated via the controller. A complete description of the functions of the controller can be
found in the enclosed manual. All alarm and fault signals of the basic A/C unit are also described.
E/0605/20/45
For the operation of the unit variants CCD/U 41 - 121 there is an additional device:
The Fan Speed Control
With the fan speed control you can adapt the fan speed individually to the application domain of the A/C unit.
The speed control is installed in the middle part of the electric box on the terminal strip. You can adjust the fan
speed with two variable resistors which are situated on the printed circuit board of the speed control.
With the variable resistor indicated PHI 1 you adjust the speed for the operation without dehumidification (Nondehumidifying speed, N-D speed). With the variable resistor indicated PHI 2 you adjust the speed for the
dehumidification. The speed, adjusted with PHI 2, should be smaller than the N-D speed to make sure that a
dehumidification takes place. Both resistors have got the same range of control from a minimum speed to the
nominal speed.
Consequences, if the speed is too small:
- Icing of the evaporator
- The air flow control can give an alarm.
- Overheating of the electric reheat, the overheat protection is actuated.
Two LEDs on the printed circuit board indicate the state of operation. At a non-dehumidification phase the LED
I1 is illuminated and the fan motor runs at the adjusted speed by PHI 1. At a dehumidification phase the LED
I2 is illuminated and the fan motor runs at the adjusted speed by PHI 2.
adjustable
resistors
LED
Fuse 6A
E/0605/20/46
Maintenance
Safety instructions
All maintenance work is to be carried out under strict compliance with the country-specific accident prevention
regulations. In particular we refer to the accident prevention regulations for electrical installations, refrigerating
machines and equipment.
Maintenance work is only to be carried out on the A/C units by authorised and qualified specialist staff.
Work on the system must always only be carried out when it is shut down. To do this, the
A/C unit must be switched off at the controller and at the master switch. A "DO NOT
SWITCH ON" warning sign must be displayed.
Live electrical components are to be switched to de-energized and checked to ensure that
they are in the de-energized state.
Non-compliance with the safety instructions can endanger people and the environment.
Contaminated parts always result in a loss of performance and, in the case of switching and control units, can
result in the failure of the system.
The built-in filters cannot be washed and the dust cannot be beaten out of them. Therefore
contaminated filters must be replaced regularly, otherwise air output is reduced, energy
consumption increases considerably and the system may fail.
Maintenance measures and intervals
Measure
Intervals
in months
General
Checking A/C unit for external damage
Cleaning inside of A/C unit and checking for damage
12
12
Mechanical
Checking fan for satisfactory condition
Replacing filter
Replacing V-belt
12
3
6
Air conditioning
Checking refrigerant circuit
Visually inspecting water circuit for leaks
Checking compressor for satisfactory condition
3
3
3
This table contains all the maintenance measures required for a basic A/C unit. If your A/C unit is equipped
with additional options, the required maintenance measures can be found in the "options" section.
The intervals specified in the table are only reference values, which can vary depending on where the unit is
installed and the degree of contamination.
E/0605/20/47
Maintenance work
Opening the A/C unit
The A/C unit is opened by
opening the electrical
compartment door and by
removing two front panels
The panel in front of the low
temperature section is secured
by ball pins and can be
removed without auxiliary
equipment. To remove the front
panel in front of the air section,
first open the electrical
compartment door using the
male triangular wrench
provided.
All maintenance measures can
be performed from the open
front of the A/C unit.
Checking A/C unit for external damage
- Ensure that the A/C unit is switched on and is in operation.
- Pay attention to unusual noises.
- Check the A/C unit externally for damage, contamination and corrosion.
- Check whether warning information is shown on the display.
E/0605/20/48
Cleaning inside of A/C unit and checking for damage
- Switch the A/C unit off at the controller.
- Attach a "DO NOT SWITCH ON" warning sign to the A/C unit.
- Wait until the fan stands still.
- Open the electrical compartment door of the A/C unit using the male
triangular wrench.
- Switch off the A/C unit at the master switch.
- Remove the front panels.
Master switch
- Clean the A/C unit with a vacuum cleaner.
- Check the filter for contamination and replace it, if necessary.
- Clean the condensate water tray.
- Clean the fins of the evaporator with a brush.
- Clean the unit components with a cloth.
- Check all built-in unit components for external damage,
contamination and corrosion.
- Check the hose connections for damage.
Condensate water tray
Evaporator
- Check the pipeline system for damage.
- Check the cable connections for firm seating and damage.
- Re-install the front panels.
- Switch on the master switch and close the electrical compartment
door.
- Remove the warning sign and put the A/C unit into operation.
E/0605/20/49
Checking fan for satisfactory condition
- Switch off the A/C unit at the controller.
- Open the electrical compartment of the A/C unit using the STULZ
door opener.
- Switch off the power switch of the fan.
Master switch
- Remove the front panel in front of the air section.
- Check fan for damage, corrosion and firm seating.
- Turn the fan by hand, checking ease of movement and noting any
running noises from the bearings.
- Check the V-belt for wear and replace it, if necessary.
(only for CCD/U 171/201)
- Check whether the pulleys of the V-belt align.
- Check the tension of the V-belt.
Aligning the V-belt
pulleys
The V-belt may yield by a maximum of one V-belt
thickness. The V-belt tension is adjusted by turning the
hexagon shaft on the motor slide.
- Install the front panel in front of the air section.
- Switch on the power switch of the fan.
- Switch on the master switch and close the electrical compartment.
E/0605/20/50
Tension of the V-belt
Replacing filters
- Open the electrical compartment.
- Remove the filters. On a downflow unit the filter is accessible from
above. On an upflow unit, remove the air section panel in which the
filter is housed.
Master switch
- Remove contamination from the filter seat.
- Install new filters.
- Re-install the air section panel, if appropriate.
- Switch the master switch on and close the electrical compartment.
Downflow unit filter
Upflow unit filter
E/0605/20/51
Replacing V-belt (only for CCD/U 171/201)
This measure is only to be performed by an authorised,
trained specialist. We recommend STULZ customer
service.
- Open the electrical compartment of the A/C unit.
Master switch
- Remove the air section panel.
- Check the fan by hand for ease of operation.
- Loosen the V-belt by turning the shaft on the motor slide.
- Replace the V-belt.
- Tension the V-belt by turning the shaft on the motor slide.
- Check the tension of the V-belt.
Loosening/tensioning
V-belt
The V-belt may yield by a maximum of
one V-belt thickness.
- Check whether the pulleys align.
Remove all tools and repair equipment in the A/C unit.
- Switch on the A/C unit at the master switch.
Caution: Do not reach into the fan when the fan wheel is
running.
! Caution: rotating parts. Do not reach into the V-belt
when it is in operation.
E/0605/20/52
Aligning the pulleys
Caution: Current-conducting cables and electrical
components of the A/C unit are live
- Switch on the A/C unit at the controller.
- Check the fan for satisfactory function. Pay particular attention to
running noises from the fan and bearings.
- Re-install the air section panel.
- Close the electrical compartment of the A/C unit.
E/0605/20/53
Checking refrigerant circuit
- Open the electrical compartment and switch off the A/C unit at the
master switch.
- Remove both front panels.
- Visually inspect the pipelines of the refrigerant circuit for damage.
- Check whether the safety valve has triggered.
Sight glass
Caution: current-conducting cables and electrical
components of the A/C unit are live.
- Switch on the A/C unit at the master switch and at the controller.
- Check the refrigerant quantity at the sight glass during operation.
If bubbles are visible in the sight glass over a long
period, there is insufficient refrigerant in the refrigerant
circuit.
Master switch
- Check the pipe connections and connections of the refrigerant circuit
for leaks with leak-detecting spray.
- Switch off the A/C unit at the controller and master switch.
In the case of G-units, the quantity of refrigerant specified
for the unit can be found on the rating plate. If there is
insufficient refrigerant, the refrigerant is to be extracted
and refilled completely.
Location of rating plate
E/0605/20/54
Refrigerant containing fluorinated hydrocarbons damages the
ozone layer and is therefore to be disposed of properly!
- Top up with refrigerant, if there is no leakage and insufficient refrigerant
(refer to the section on "refrigerant piping").
- Re-install the front panels.
- Switch on the master switch and close the electrical compartment door.
Visually inspecting water circuit for leaks
master switch.
- Remove the low temperature section panel.
- Visually inspect the pipelines of the water circuit for leaks.
- Visually inspect the screwed pipe connections for leaks and for
damage.
Master switch
- Re-install the low temperature section panel.
- Switch on the master switch and close the electrical compartment.
Screwed pipe
connections
E/0605/20/55
Checking compressor for satisfactory condition
master switch.
- Remove the low temperature section panel.
- Switch off the compressor power switch.
- Check the compressor for external damage and corrosion.
Master switch
- Re-install the low temperature section panel.
- Switch on the power switch of the compressor.
- Switch on the A/C unit at the master switch.
- Close the electrical compartment.
- Remove the warning sign and put the A/C unit into operation
Compressor
E/0605/20/56
7. Causes and elimination of faults
All faults which are detected by the A/C-unit are visualized on the display of the controller. On the following
pages the most current faults are documented.
Outputs
1x Fan
1x Humidification (dry contacts)
2x Heating
1x Compressor/Valve
1x Alarm (dry contacts)
Inputs
Alarm inputs:
Humidification
Airflow
Filter
Heating
Conductivity
Aux1/water detector
Sensors
temperature
and humidity
Remote ON/OFF
Display
4-digit LED
4x Status
4x Alarm
CompTrol 1002
Operation
4 keys
4 switch (rear side)
ALARM
HEIZUNG 1
Befeuchter
Fern Ein
Monitor On
RS485
24 V
220 V
TRANSFORMER
Program entry: Set values, start values, limit values, hysteresis
E/0605/20/57
Limit value alarms shown on display
Room temperature too high
Cause of fault
1 Sensor measures defective
specified or limit values.
Limit or specified values have
been exceeded.
Room temperature too low
Elimination
Comments
Calibrate sensor.
To calibrate, check values in the
controller with external thermometer.
Check in the controller the
specified and limit values entered.
Room temperature too high:
2 Filter contaminated.
Replace filter. Refer to "Operation/
Maintenance" section.
3 Expansion valve frozen up.
Switch off A/C unit and switch on
again after expansion valve has
thawed.
4 Compressor or fan have
failed.
Check compressor or fan for
satisfactory condition. Refer to
section "Operation/Maintenance".
Inform customer service if
compressor/fan is defective.
Shortage of refrigerant in
refrigerant circuit.
Before opening the A/C unit, this
is to be switched off at the
controller and at the master switch.
A "DO NOT SWITCH ON" warning
sign is to be attached. Comply with
the safety instructions at the start
of these operating instruc-tions.
Check refrigerant circuit. Refer to
"Operation/Maintenance" section.
Room temperature too low:
Compressor does not switch off.
Inform customer service.
Heating defective.
Inform customer service.
E/0605/20/58
After the elimination of the
fault press the key code
twice.
Room humidity too high
Room humidity too low
Cause of fault
Elimination
Comments
1 Sensor measures defective
specified or limit values.
Calibrate sensor.
To calibrate, check values in the
controller with the external
hygrometer.
Limit or specified values exceeded.
Check in the controller the
specified and limit values entered.
Room humidity too high:
2 CCD/U 171/201 A/G :
Solenoid valve for dehumidifying
economy circuit defective.
CCD/U 41 - 121 :
Fan speed on the board is adjusted
too high.
Fan speed control is defective.
Replace defective solenoid valve.
This measure is only to be carried
out by an authorised specialist or
by STULZ customer service.
Turn down the fan speed with PHI
2 on the circuit board in the electric
cabinet.
Replace the fan speed control.
sign is to be displayed. Comply
with the safety instructions at the
start of these operating instructions.
Room humidity too low:
Steam humidifier defective.
Check function of steam humidifier.
twice.
E/0605/20/59
Air flow failure
Cause of fault
1 Air flow monitor defective.
2 Hoses to flow monitor
contaminated or kinked.
3 Fan defective.
Elimination
Comments
Check air flow monitor electrically.
Defective air flow monitors are only
to be replaced by authorised
specialist staff or by STULZ
customer service.
Work on the electrical systems is
only to be carried out by qualified
specialist staff.
Clean hoses and check for kink
points.
Check fan for satisfactory
condition. Refer to "Operation/
Maintenance" section.
4 CCD/U 171/200/201:
V-belt worn.
Replace V-belt.
Refer to
"Operation/maintenance" section.
CCD/U 41-121 :
The fan speed is adjusted too
small.
Turn up the fan speed. (page 46)
twice.
E/0605/20/60
Filter alarm
Cause of fault
Elimination
Comments
1 Filter contaminated
Replace filter.
2 Filter monitor does not
operate.
Replace defective filter monitor.
Replace defective parts, DO NOT
REPAIR THEM.
Check hoses for contamination
and kink points.
fault press the
and
key on the C1002.
E/0605/20/61
Low pressure alarm
Cause of fault
Elimination
Comments
1 Pressure switch defective.
Adjust or replace pressure switch.
2 Expansion valve defective.
Replace expansion valve. DO NOT
REPAIR IT.
3 Solenoid valve in fluid line
defective.
Replace coil or lower section of
valve.
Repairs on components
of the refrigerant circuit
and electrical components are only to be carried out
by authorised specialist staff or
by STULZ customer service.
Voltage supply of solenoid valve
defective.
Check electrical actuation with a
voltage tester.
4 Power switch of compressor
does not operate.
Check start temperature of the
compressor at the controller.
Power switch of compressor has
triggered.
Check adjustment value of motor
protection switch. Measure compressor power consumption.
Shortage of refrigerant in system.
Locate and eliminate leaks in
refrigerant system.
Replenish refrigerant on A units.
Replace refrigerant on G units.
sign is to be displayed.
Comply with the safety instructions
at the start of these operating
instructions.
twice.
E/0605/20/62
High pressure alarm
Symptom
Action
Comments
1 Compressor contactor
tripped.
Check adjustment of contactor.
Measure power consumption of
compressor. Replace defective
compressor.
Compressor contactor does not
operate.
Check contactor for satisfactory
function.
Repairs on components of
the refrigerant circuit and
electrical compon-ents are
only to be carried out by
authorised trained staff or by
STULZ customer service.
2 High pressure switch has
tripped.
After elimination of the failure
press the blue button on the high
pressure switch.
Overfilling of the refrigerant
circuit.
Reduce quantity of refrigerant.
Surplus refrigerant has to be
disposed of in accordance with the
regulations.
3 Overheating of compressor
due to shortage of water in condenser water circuit.
Replenish cooling medium.
Eliminate any leakages. Bleed
water circuit. Check condenser
water pumps or drycoolers for
satisfactory function.
Overheating of compressor due to
insufficient heat transmission to
the air cooled condenser.
Clean the fins of the air cooled
condenser.
is to be switched off at the master
switch.
Comply with the notes on safety
at the start of these operating
instructions.
twice.
E/0605/20/63
Controller fault, Sensor failure
Symptom
Action
Comments
The controller has detected a
check sum error concerning the
EPROM.
Replace the controller.
Repairs on electrical
components are only to
be carried out by
authorised trained staff or by
STULZ customer service.
Sensor failure temperature:
The measured temperature is
below 3°C or above 50°C.
Check the actual temperature with
an external thermometer.
Check the sensor, cable and the
electrical connection, if the
temperature is in between the
measuring range.
Sensor failure humidity:
The measured humidity is below
3% r.h. or above 97% r.h.
Check the actual humidity with an
external hygrostat.
Check the sensor, cable and the
electrical connection, if the
humidity is in between the
measuring range.
E/0605/20/64
is to be switched off at the master
switch. Comply with the notes on
safety at the beginning of this
manual.
twice.
8. Refrigerant piping
Notes on refrigerant system installation and filling an air conditioning system
All work on refrigeration systems must only be carried out by authorised specialist staff or
by STULZ customer service
Selection of hot gas and liquid line
-
-
Establish the shortest pipe route from the A/C unit to the condenser. Exceptions only if unnecessary
bends have to be avoided.
Determine the required pipe fittings and fittings between the A/C unit and condenser.
With the aid of table No. 1 on P.67, convert the pressure loss of the individual fittings into equivalent
pipe lengths. Look up equivalent pipe lengths for pipe fittings and fittings and add these to the real
pipe lengths.
Select the pipe dimensions from diagram No. 1 on P.66 appropriate to the calculated overall pipe
length and cooling capacity.
Precautions for hot gas line if the condenser is higher than the A/C unit.
-
Ascending pipes are routed with the same dimensions, if oil transportation in accordance with table
No. 2, P.67 is guaranteed even at part load.
An oil separator must be installed in systems with a pipe length above 25 m.
Oil elbows (even in the case of the oil separator) are to be installed every 2.5-3.0 m.
The horizontal lines are always to be routed with a slope towards the condenser.
Precautions for fluid lines:
With fluids, bubbles can form upstream of the expansion valve. This is always the case when the temperature
of the refrigerant upstream of the expansion valve corresponding to the pressure is lower than the ambient
temperature of the fluid line. Therefore insulation with Armaflex or equivalent material with a wall thickness of
9 mm is recommended for the lines outside of the unit. A thicker insulation is not required since the insulating
effect does not significantly increase with wall thickness.
Precautions for hot gas lines:
Hot gas lines can reach a temperature of up to +80°C and should be insulated inside the building at places
where a possibility of contact exists (risk of burn!).
E/0605/20/65
Pipe dimensions and precautions for the routing of refrigerantconducting lines
Diagram No. 1 - Diagrams for showing the layout of refrigerant lines for R407c/R22
Ou
tsi
de
dia
. in
m
Overall pipe length in m
Liquid lines depending on the
overall pipe lengths and cooling
capacities.
Hot gas lines depending on the
overall pipe lengths and cooling
capacities.
Ou
tsi
de
dia
. in
mm
Overall pipe length in m
Cooling capacity in kW
Cooling capacity in kW
E/0605/20/66
Table 1: Pressure drop of pipe fittings in meters of equivalent pipe length
Bend
Copper pipe
Angle
Outside dia. mm
45°
90°
180°
90°
10
12
15
18
22
28
35
42
0,16
0,21
0,24
0,26
0,27
0,39
0,51
0,64
0,20
0,27
0,30
0,36
0,42
0,51
0,70
0,80
0,53
0,70
0,76
0,87
0,98
1,20
1,70
1,90
0,32
0,42
0,48
0,54
0,61
0,79
1,00
1,20
T-piece
0,20
0,27
0,30
0,36
0,42
0,51
0,70
0,80
Table 2: Selecting the pipelines
Minimum cooling capacities which are required for oil transportation in rising pipes
of hot gas lines for R407c/R22 at tc (dew point) 48°C.
Pipe diameter
Cooling capacity
kW
15
18
22
28
35
42
4,41
5,17
7,14
10,0
16,58
25,9
Route horizontal pipes with a slope towards the condenser.
Position oil bends every 2.5 - 3 m.
Use oil separator for rising pipe longer than 25 m.
E/0605/20/67
Installation instructions
for routing refrigerant-conducting pipes
The following points are to be complied with when routing the pipes:
-
The measures listed in the safety instructions chapter are to be complied with when routing refrigerantconducting pipelines.
-
Routing must be over the shortest routes, (involve a specialist in cases of doubt).
-
Bends and angles are to be avoided wherever possible as these result in pressure drops which
reduce the output of the A/C unit. Returns around joists, masonry offsets or the like are to be carried
out with 45° bends wherever possible, in accordance with sketch No. 2, P. 71.
-
Horizontal lines must have a slope towards the condenser so that oil and condensed refrigerant
cannot flow into the system when it is shut down. (Hot lines must be insulated. Exceptions are hot
gas lines in the open air which cannot be touched.)
-
Upright pressure lines must have an oil bag every 2.5-3 m as well as an oil trap at the highest point,
in accordance with sketch No. 3, P. 71.
-
To avoid backflow of condensation, a non-return valve with damping piston must always be installed,
in the pressure line if it is not already installed in the unit on the outlet of the A/C unit or downstream
of the oil separator.
-
If an oil separator is installed in the system, this must be filled with the same type of oil as the
compressor in accordance with the manufacturer's specifications.
Never route pipelines through rooms such as conference rooms, rest rooms, offices etc.
Pipe mountings are to be provided at least every 2 m. The pipe mountings are to be insulated against
vibrations. The first pipe mounting behind the A/C unit and upstream of the condenser should be flexible. So
that the pressure lines can expand, the pipe mountings are to be attached at least 1 m from the bend, in
accordance with sketch No. 1, P. 71.
-
All copper pipes which lead through masonry are always to be insulated in this area so that the pipes
are not attacked by the masonry and a certain flexibility is retained.
-
For routing, only copper pipes are to be used which correspond to country-specific regulations.
Sealing caps or ends added as flux must be meticulously clean and dry and meet the requirements
of refrigeration engineering.
-
Before commencing with routing the pipelines, one should ensure that the pipes are dry and clean
inside. Check whether the sealing caps are seated on the pipe ends and if necessary blow through
the pipes with nitrogen. If the sealing caps are no longer seated on the pipe ends, the pipes must be
cleaned inside with a clean non-fraying rag and a spiral and then blown through with nitrogen to
remove the remaining dirt. Furthermore it must be ensured that the remaining pipe is always sealed
with a plug after cutting off pipe ends.
E/0605/20/68
-
Pipes for refrigerant must always be cut to length with a pipe cutter and then brought to the correct
inside diameter by slightly expanding or calibrating.
Sawing refrigerant pipes is not permitted as the chips cannot be completely removed and
blockages can result in the control components or the compressor may be irreparably
damaged. The same can also occur as a result of contaminated pipes.
-
If copper pipes are flared, the taper of the tube flaring tool must be coated lightly with refrigerator oil
to prevent a burr occurring during the flaring process on the copper pipe which can then enter the
pipe.
-
Refrigerant-conducting pipes may only be soldered under inert gas so that no burring occurs on the
inside of the pipes which also contaminates pipelines.
Soldering not carried out by a specialist will render the guarantee invalid.
Nitrogen is used as the inert gas. It is blown through the pipe system under slight pressure without excess
pressure affecting the soldered joint.
Adequate ventilation of the room is to be ensured for welding and soldering work.
Before the final connection is soldered, a screwed connection must be released at the appropriate point so
that no pressure occurs in the pipe system.
After soldering, do not forget to retighten the screwed connection which has been released.
-
If the system has finished pipework, it is mandatory that the system is checked for leaks. This must
be carried out as follows:
-
The system is initially filled with dry nitrogen to the maximum nominal pressure.
-
The system is shut off, the valve in the system is closed and the nitrogen bottle removed.
-
Each connection (including screwed connections) is checked for leaks by brushing off. In parallel with this check, a pressure gauge is connected, with which it can be rechecked that the
system has no leaks, the pressure on the pressure gauge being checked for an appropriate
period for the size of the system.
E/0605/20/69
Installation notes for routing refrigerant-conducting pipes
1000
1000
Correct
Mounting the
refrigerant pipes in
corners
Sketch 1
Incorrect
Dealing with obstacles
Sketch 2
liquid
gas
Routing pressure lines when
the Condenser is higher than
the compressor.
ca. 2.5 - 3 m
Use oil separator for rising
pipe longer than 25m.
Sketch 3
liquid
max. 3 m
gas
For height differences of
over 3 m the system must
be designed so as to
guarantee additional
subcooling (consult STULZ).
Sketch 4
E/0605/20/70
Basic principles for evacuating refrigerant systems
Vacuum pump
The vacuum pump is used in order to remove as much air as possible in sealed systems, so that the moisture
contained within evaporates and is extracted by the vacuum pump. (With a suitable vacuum, evaporation
already takes place at ambient temperature).
When selecting a vacuum pump this must be adapted to the systems to be evacuated (consult a specialist
company).
Successful evacuation and the associated drying of the system can only be achieved if the vacuum pump
with the associated vacuum meter is in proper working order. In addition the evacuation process must be
monitored continuously by a fitter.
Pressure measurements
The pressure which prevails in the refrigerant circuit, is measured by pressure gauges. Two pressure gauges
are required, one on the suction side for measuring the evaporator pressure and the associated evaporation
temperature, the other for the high pressure side for measuring the condensation pressure and the associated
condensation temperature.
There are two types of pressure display:
- measurement of absolute pressure (gauge pressure + atmospheric pressure)
- measurement of gauge pressure (the pressure gauges only display the gauge pressure).
Condition of equipment for evacuating
For satisfactory evacuation it is essential to use a satisfactory and clean vacuum pump. The connections of
the vacuum pump must always be sealed when it is not being used, because moisture, dirt particles or similar
which enter can result in damage to the vacuum pump so that satisfactory evacuation can no longer be
achieved.
E/0605/20/71
Evacuating instructions
Proceed as follows when it is ensured that the system is sealed
-
Let out the test pressure down to 1 bara = 0 barp on the pressure gauge.
-
Connect the vacuum pump to the high and low pressure side of the system via a pressure gauge
station.
-
Extract from the high and low pressure side down to approx. 0 bar.
-
Fill the system with nitrogen (not refrigerant because of environmental pollution) to 1 bar and extract
again down to approx. 0 bar.
This process must be carried out at least 3 times, filling with nitrogen twice. Air and moisture is extracted from
the cooling system due to evacuation
If contaminants and larger quantities of water remain in the system - this may happen if the system has been
open over a long period, or if the pipes to be processed were not sealed - proceed as follows:
- Evacuate the system several times until the pressure gauge stays on 0 bar permanently.
- In addition the system is to be run dry by replacing the drier several times during operation.
For R407c and R134a:
Refer to the special requirements of the refrigerant manufacturer.
Explanatory notes
Absolute pressure [bara] : atmospheric pressure + gauge pressure
Atmospheric pressure:
Pressure which is caused by the weight of
the atmosphere (approx. 1 bar)
Gauge pressure [barü] : Pressure which prevails in the cooling system.
Vacuum :
Condition of approx. 0.02 - 0 bara, in a sealed system.
The difference to ambient pressure is approx. -0.98 - 1 bar.
E/0605/20/72
Instructions on filling systems with Halogen refrigerants
-
Systems without refrigerant collector or sight glass must always be filled according to weight.
-
Systems with refrigerant collector should be filled according to weight but can also be filled by
checking the sight glass.
Comply with the safety instructions listed in this section and the country-specific regulations
and safety instructions.
-
Before the system is filled with refrigerant, it must be clean and dry inside. (Refer to evacuation
instructions). Then proceed as follows:
The standing refrigerant bottle is connected to the suction side via a pressure gauge station. For
this the bottle stands upright or is suspended on scales. The weight is noted shortly before filling.
The specified amount of refrigerant is now introduced when the system is operating. During filling
the pressure in the refrigerant bottle will adjust to that of the system. Filling is then no longer
possible. This can be seen by the icing up of the bottle or by checking the pressure gauge. The
bottle valve must then be closed until a pressure increase has taken place which is above the
suction pressure of the system. This process can be accelerated if the bottle is wrapped in hot
moist towels or it is placed in a water bath at a maximum temperature of 50°C.
Never heat up the refrigerant bottle with a naked flame as there is a risk of explosion.
The refrigerant bottle must not be stood on its head otherwise any contamination from the bottle enters the
system. When the filling process is complete, the system must be sealed carefully so that no refrigerant can
escape. Only then may the bottle with filling station be removed. Systems with refrigerant collector can be
filled observing the sight glass. The system is correctly filled when no more bubbles can be seen in the sight
glass. Nevertheless scales should also be used here to determine the amount of refrigerant required.
E/0605/20/73
9. Options
9.1 Steam humidifier
The steam humidifier is an optional extra for your A/C unit. It is installed complete and integrated within the
function and method of operation of the A/C unit. Details concerning the connection assignment for the power
supply can be found in the electrical diagrams in the appendix.
We recommend the installation of an Aqua-stop valve in the water supply of the humidifier. In
addition to this, the room, in which the A/C unit with the humidifier is installed, should be
equipped with a water detection system.
9.1.1 Description
The humidifier uses normal mains water for the production of steam. The conductivity of the water should be
within the range of min. 300 to max. 1250 µS/cm. The water is converted directly into steam by means of
electrical energy in a steam cylinder with electrode heating. The steam is introduced into the airflow via the
steam throttle.
Due to the evaporation the water level in the cylinder falls. The current consumption is reduced, as the
electrodes are then immersed less in the water. With a sinking water level the mineral concentration in the
cylinder increases, as the minerals do not evaporate. The current is kept by the control between two limit
values (IN+10%, IN-5%). When the lower limit value is reached, the inlet valve opens. Now fresh water is
mixed with residual water, which has a high mineral concentration. After several evaporation and filling cycles,
the mineral concentration has increased in such a way, that the current reduction due to evaporation and
falling water level takes place quite rapidly. When a certain limit value of current reduction is exceeded, the
drain valve is opened at the moment, when also the lower current limit value is reached, and finally the cylinder
is completely drained.
The filling phase is automatically interrupted if the sensor electrode is contacted due to the high water level in
the steam cylinder. This may happen in the start-up phase with a new steam cylinder.
9.1.2 Technical data
The humidification capacity can be adjusted at a maximum value. The maximum humidification capacities are
shown in the table with the corresponding A/C units.
Steam humidifier
Units:
Hum.capacity [kg/h]
Nom. current [A]
Nom. power [kW]
230V / 1 Ph / 50 Hz
CCD/U 41-121
1,5
6,4
1,13
3
12,7
2,25
400V / 3 Ph / 50 Hz
CCD/U 171/201
E/0605/20/74
3
4,2
2,25
Water requirements
Water properties and ingredients
min
max
7
8,5
300
1250
hydrogen ions
pH
specific conductivity (at 20°C)
s20
µS/cm
total dissolved solids
TDS
mg/l
*
*
dry residue at 180°C
R180
mg/l
*
*
100²
400
total hardness
mg/l CaCO3
iron + manganese
mg/l Fe + Mn
0
0,2
chlorides
ppm Cl
0
30
silica
mg/l SiO2
0
20
residual chlorine
mg/l Cl-
0
0,2
Calcium sulphate
mg/l CaSo4
0
100
* values depending on specific conductivity; in general: TDS = 0,93 • s20 ; R180 = 0,65 • s20
2 not lower than 200% of chlorides content in mg/l of Clno metallic impurities, no solvents, diluents, soaps, lubricants
9.1.3 Supply connections
The steam humidifier is installed and electrically connected in the A/C unit. The local regulations of the water
supply company are to be complied with when making the hydraulic connection.
Water supply
The water connection is made from the cold water mains and is to be equipped with a shut-off valve. The
humidifier can be connected directly to the mains when the water pressure is between 1 and 10 bar. The pipe
should have a diameter of at least 6 mm. If the line pressure is more than 8 bar, the connection must be made
via a pressure reducing valve (set to 4-6 bar). In each case it is to be ensured that the manufactured water
pipe upstream of the connection to the humidifier is flushed properly. We recommend only using copper pipes.
The water supply temperature must not exceed 40°C.
Do not treat the water with softeners !
This could result in corrosion of the electrodes and in the formation of foam with considerable
operational interruptions.
Prevent:
1. the use of well water, process water or water of cooling circuits and generally chemically or
bacteriologically polluted water;
2. the addition of disinfectants or anti-corrosion liquids, as these are very irritating for the
respiratory ducts.
E/0605/20/75
Water drain
The drain is achieved by a plastic hose and is routed out of the unit by means of the openings in the unit
provided for this purpose (refer to 5. Installation - supply connections).
When creating the drain, attention is to be paid to provision for cleaning. As the water drain is depressurized,
we recommend routing the drain hose directly into an open collector funnel to ensure free discharge. The
drainage pipe should be routed to the sewerage system with sufficient gradient (at least 5%) and should be
located approx. 30 cm below the humidifier. Attention is to be paid to temperature resistance when plastic
pipes are used. If copper pipe is used, it must be earthed. For the drainage pipe an inside diameter of 32 mm
is recommended, however the minimum inside diameter should not be less than 25 mm.
9.1.4 Commissioning
As soon as the controller requires the humidifier function, the heating current is switched on; after approx. 30
seconds water is fed into the steam cylinder through the inlet valve which opens and fully automatic operation
begins. A condition is the open shut-off valve in the water supply.
IMPORTANT NOTICE:
After the water pipes have been connected, the supply piping must be flushed for approx. 30 minutes,
where the water is directly conducted into the drain, without letting it flow into the steam humidifier.
This way residues or substances of the installation process are removed, which otherwise could block
the fill valve and cause foam during the boiling process.
Decommissioning the humidifier
The steam cylinder is to be emptied if the humidifier has been out of operation for a longer period (e.g. in
summer, decommissioning the air conditioning system etc.) (see 9.1.6 Maintenance - Drainage).
E/0605/20/76
9.1.5 Operation
The steam humidifier is controlled and monitored by the controller. No further operating measures are required
for continuous operation.
However, you can always vary the humidifier output, by operating the DIP-switches A3/4, which are located on
the humidifier printed circuit board in the electrical section of the A/C unit.
3
4
ON
100 % humidification capacity
OFF
3
4
ON
OFF
3
4
ON
OFF
3
4
ON
The humidifier operation is indicated by a green LED.
From the yellow LED you can see the state of operation
of the humidifier (see diagram 1,2). The red LED
indicates if an alarm is active (see alarm table).
You can also manually drain the steam cylinder (see
9.1.6 Maintenance). The position of the TA RATEswitches 1-4, the DIP-switches A2 and B2 is not to be
changed under no circumstances. For this reason the
switches are sealed.
OFF
Power supply 24 VAC
G/G0
manual
drainage
drain valve
fill valve
high level/foam
sensor
conductivity sensor
external TAM
green LED
yellow LED
red LED
immersed electrodes
max. 5A
fig. 1
RS485
alarm relay
humidity sensor
remote ON/OFF
external controller
DIP A2: Alarm relay status
1
2
Relay energized (contact closed), when
at least 1 alarm is active, otherwise not
energized (contact open).
1
2
Relay not energized (contact open),
when at least 1 alarm is active,
otherwise energized (contact closed).
ON
OFF
ON
OFF
E/0605/20/77
DIP-switch „B“ : Auxiliary functions and automatic drain timings
1 2 3 4
DIP B1: complete drainage after 7 days without any humidification request
ON: function disabled
OFF (default): function enabled
1 2 3 4
DIP B2: automatic drainage with electrodes powered/not powered
ON: electrodes powered during automatic drainage
OFF (default): elctrodes not powered
ON
OFF
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
ON
OFF
DIP B3: automatic drainage when request is reduced by at least 25%.
ON: new humidification capacity achieved by steam cycles
OFF (default):
1. new humidification capacity is achieved by steam cycles, if the request
is reduced by less than 25%.
2. automatic drainage, if the request is reduced by at least 25%
DIP B4: disabling of the pre-alarm and the warning for wornout cylinder (see alarm
table 2)
ON: warnings are never displayed.
OFF (default): warnings are displayed when the cylinder is worn out.
DIP B5-6:
automatic drainage time
5
6
ON
7
time = default
OFF
5
5
OFF
threshold = default + 33%
OFF
7
time = default + 66%
8
ON
6
ON
threshold = default - 30%
OFF
7
time = default + 33%
OFF
8
ON
6
ON
threshold = default
OFF
7
time = default - 30%
OFF
8
ON
6
ON
5
DIP B7-8:
evaporation time threshold
ON
8
threshold = default + 66%
OFF
Change the default adjustment only after confirmation of the STULZ technical support. The dip-switches serve
to adapt the drain cycle to extreme water conditions beyond the previously described limit values.
E/0605/20/78
Diagram 1:
Steam production: yellow LED - transient production "short flashing"
steam
< 1%
time
1-19%
time
20-29%
time
90-99%
time
Diagram 2:
Steam production: yellow LED - constant production "long flashing"
steam
< 1%
time
1-19%
time
20-29%
time
90-99%
time
100%
time
The yellow LED stays off when no steam is produced, whereas it stays continuously on at 100% of the
nominal production.
When steam is being produced at a transient production rate while approaching the steady-state production,
the yellow LED is quickly turned on and off to produce 2 Hz-pulse sequences which are related to the actual
steam production as shown in diagram 1.
When the steady-state production is achieved, the yellow LED is slowly turned on and off to produce 0,5 Hzpulse sequences which are related to the actual steam production as shown in diagram 2.
Each pulse sequence is separated from the following by a 3-second delay, so that the user can count the
pulse number of a sequence and determine, using the diagram, the actual humidification capacity.
E/0605/20/79
9.1.6 Maintenance
Please switch off the A/C unit at the controller and the main isolator before starting work and
put the power circuit breaker F70 in the electrical box to position 0!
The following work and checks can be carried out:
- check steam hoses, condensate hoses, water hoses and other parts of the humidifier for external effects
or wear.
- Flush out the water drain.
Replacing the steam cylinder
The steam cylinder needs replacing if the electrodes are so highly insulated due to the increasing calcification
or furring that the water level in the steam cylinder constantly touches the sensor electrode.
The specially constructed water filling beaker provides additional safety here, excessive water being routed to
an overflow and being able to drain away there.
Warning note!
The temperature of the discharged water is approx. 60°C during normal operation but can
reach 100°C briefly, if the steam cylinder is emptied manually during maintenance work.
The steam cylinder should be allowed to cool down slightly before removal.
If the alarm code 11x long on the humidifier printed circuit board in the electrical section (also refer to Alarm
table 2) occurs repeatedly, the steam cylinder has worn out and must be replaced. The life of a steam cylinder
depends on the operating period and the hardness of the water.
Manual drainage
By means of a switch on the humidifier board,
you can manually drain the cylinder. After
the drainage the switch must be reset to
position "ON", otherwise no humidification
can take place.
Position "ON"
Position "DR"
Switch off the power supply circuits to the humidifier before continuing the work!
The steam cylinder can be unscrewed from the mount after releasing the hose clamp, pulling off the steam
hose and disconnecting the electrical plug on the cylinder.
The new steam cylinder is installed in the reverse sequence. The humidifier is re-started in accordance with
the recommendations of the chapter "9.1.4 Commissioning".
E/0605/20/80
9.1.7 Malfunction causes / Remedy
Alarm: Humidifier defect
In the event of this signal on the controller, please look for the exact cause of the fault on the humidifier printed
circuit board in the electrical section of the A/C unit. If an alarm has been raised, the red light-emitting diode
displays a flashing alarm code. The meaning of the alarm codes can be seen in the alarm table 2.
Repairs to the electrical components are only
to be carried out by authorized trained staff or
by STULZ Customer Service Department.
Diagram 3:
twice.
Alarms: red LED - "short flashing"
no alarm
time
1x flashing
time
2x flashing
time
9x flashing
time
Diagram 4:
Alarms: red LED - "long flashing"
no alarm
time
1x flashing
time
2x flashing
time
9x flashing
time
E/0605/20/81
Alarm list
Table 1 - Alarm types
Type
Description
Reset (if alarm cause has
been removed)
Blocking
CP-card stops
humidifier.
manual: to restart, turn the
cp-card off and then on again.
Disabling
CP-card stops
humidifier.
• automatic
• manual:
to restart, turn the cp-card off Alarm codes:
and then on again.
each code is displayed in
sequence.
Note: the distinction between
the automatic and manual
reset is shown in the table
below.
Warning
CP-card does not
stop humidifier.
• automatic
Red LED
Alarm relay
The relay is normally open or
normally close depending on
DIP A2.
The relay action is cumulative:
• contact is closed (opened), if
at least 1 alarm is active.
• contact is opened (closed),
if:
- all alarm causes have been
removed.
- all alarms have been reset,
either manually or
automatically.
The codes are displayed
even if the alarm causes
have been removed; to stop
displaying them, turn the cpcard off and then on again.
Note: each alarm is not
assigned to the relay (see
table below)
Table 2 - Alarms
Red LED Description & Causes
flashes
2xshort Electrode over-current
1. water conductivity too high
(usually when starting after a
short stop)
2. high water level due to drain
valve malfunction
3. high water level due to fill
valve leakage
4. electrode malfunction
Remedy
3xshort No voltage at the electrodes:
with the unit on, no steam is
produced.
1. Check the external command signal: type (V or mA)? Value? blocking
Connections?
2. Switch off the unit and disconnect it from the mains: check
the internal electrical connections.
manual active
4xshort Internal memory error
1. Download the proper default configuration via HumiSet. blocking
2. If the problem persists, contact the STULZ customer
service.
manual active
5xshort High conductivity of the supply 1. Switch off the unit and clean the conductivity sensor blocking
electrodes;
water
2. If the problem persists, change the source of supply water
or install a suitable treatment system (demineralisation,
even partial).
Note: the problem will not be solved by softening the supply
water.
manual active
E/0605/20/82
Type
blocking
1. Drain part of the water and re-start.
2. Verify that the drain valve is properly working.
3. Check for any leakage of the fill valve when the humidifier
is switched off.
Reset
Alarmrelay
manual active
Table 2 - Alarms (continued)
Red LED Description & Causes
flashes
2x long Cylinder depleted
3x long Lack of supply water
4x long Excessive reduction of
steam production
5x long Drain malfunction
6x long User parameter error
Alarmrelay
Do maintenance and/or replace the cylinder.
warning manual not
active
1. Check that the fill pipe from the mains to the humidifier and disabling manual active
the internal pipe are not blocked or bent and that there is
sufficient supply pressure (1-8 bar).
2. Check that the fill valve is properly working.
3. Check whether the counter-pressure onto the steam hose
is higher than the maximum limit, preventing the entry of
supply water into the cylinder by gravity.
4. Check that the steam outlet pipe is not choked and that
there is no condensate inside.
Remedy
Type
Reset
1. Cylinder completely depleted or excessive foam. Do disabling manual active
maintenance to the cylinder.
1. Check the drain circuit and the proper operation of the disabling manual active
drain valve.
1. Download the proper default configuration via HumiSet. blocking manual active
2. If the problem persists, contact the STULZ customer
service.
7x long Supply water high
conductivity pre-alarm
1. Check the conductivity of the supply water.
2. If necessary install a suitable demineralizer.
Note: the problem will not be solved by softening the
supply water.
warning
8x long External command signal not
properly connected
(only 2/10V)
9x long Cylinder full with steam
production not in progress
1. Check the connection to the (external) controller.
disabling alarm: active
automat.
with the humidifier switched off:
1. Check for any leaks from the fill valve or the
condensate return pipe.
2. Check that the level sensors are clean.
Foam is usually caused by surfactants in the water
(lubricants, solvents, detergents, water treatment agents,
softeners) or an excessive concentration of dissolved
salts:
1. Drain and clean the water supply pipes.
2. Clean the cylinder.
3. Check for the presence of softeners. (in this case, use
another type of supply water or reduce the softening)
disabling manual active
warning
display: not
manual active
reset
Do maintenance and/or replace the cylinder.
warning
display: not
manual active
reset
10xlong Foam inside the cylinder
11xlong Cylinder almost completely
depleted
Note:
display: not
automatic active
reset
"manual reset" means one of the following activities
- pulling off and putting on the power supply plug G/G0 (see 10.1.5 operation - fig. 1)
- switching off and on the control fuses F02 (Caution: unit is switched off.)
E/0605/20/83
9.2 Heating
The heater is an optional extra for your A/C unit. It is installed complete and integrated in the function and
method of operation of the A/C unit. It is used to heat up the air. The following versions of the reheat are
available:
Electrical reheat
Low pressure hot water reheat (LPHW)
Refrigerant reheat (RF)
Electrical reheat
LPHW reheat
RF reheat
The LPHW reheat is to be
connected to an external hot water
circuit. The water supply is
controlled via an electrically
actuated LPHW valve.
The LPHW valve is controlled via
the controller. Refer to the C1002
manual.
The refrigerant reheat is integrated
in the refrigerant circuit in
accordance with the refrigerant diagram in the "Appendix". The
refrigerant supply is controlled via
an electrically-actuated 3-way solenoid valve. The solenoid valve
is controlled via the controller. Refer
to the C1002 manual.
CCD/U 171/201
CCD/U 41-121
The heater is connected in accordance with the connection diagram
(refer to "Appendix"). It is controlled and monitored by the controller.
The values for switching on and off
are adjusted on the controller. Refer
to the C1002 manual.
Operation
The reheat is controlled and monitored by the controller. No further measures are required for operation.
Maintenance
Clean the reheat annually from contaminations and check it for damage.
Installation
The reheats are installed and connected in the A/C unit. The LPHW reheat is to be connected on site to the
external hot water circuit. The pipelines are to be routed out of the A/C unit in accordance with the section
Installation "pipeline and cable ducts". The LPHW reheat is connected via a 22 mm copper pipe.
E/0605/20/84
Electrical Heating Alarm
Symptom
Action
Comments
1 The overheat protection has
triggered.
Check whether the fins of the
heating are dirty.
Raise air flow (at CCD/U 41-121)
Mesure the current consumption
of the heating.
Repairs to the electrical
components are only to
be carried out by
authorized trained staff or by
STULZ Customer Service Department.
2 Power circuit-breaker has
triggered.
for CCD/U 171/201:
Check power circuit-breakers and
electrical heater for damage.
Replace defective power circuit
breaker or electrical heater.
The A/C unit is to be switched off
at the master switch before
opening it.
for CCD/U 41-121:
In this case there is no display
on the C1002.
3 Cable connection to heater
open circuit.
Check cable connection.
twice.
E/0605/20/85
9.3 Raised floor stand
The floor stand is used to adjust the height of the A/C unit to the existing raised floor and
consists of an encircling rectangular profile of galvanized steel with adjustable screw sockets. Anti vibration
compound is recommended between concrete floor and base plate.
The delivery volume contains: 4 bars of rectangular profile 70 x 40, 4 mafund plates, 4 adjustable supports,
which can be shortened on site, 8 hammer head screws M8 x 30
CCD 41-121
Connecting the bars
(View from below)
Angle Connection
595
620
575
600
495
Positioning of supports
Rectangular profile 70 x 40 x 2
Cut out in raised floor
CCD 171-201
1020
E/0605/20/86
830
1000
810
Positioning of supports
Rectangular profile 70 x 40 x 2
Cut out in raised floor
Minimum distances and mounting instructions
Z (min. 30)
Floor stand
- the dimensions of the openings in the raised floor (X
and Y) are 10 mm longer than the raised floor stand.
The joint must be closed by customers with a
continuous seal.
Y
Z
(min. 30)
X
Z
- the raised floor cutting (notch) should at least be 15°
and must not have any contact to the raised floor
stand, which could result in bone-conduction.
Z (min. 800) - a concrete foundation is recommended in the area
of the raised floor supports.
- the raised floor supports have to be installed on
vibration dampening material (do not screw down
the supports!).
X/Y = Opening in raised floor
Z = Limit of distance
- prior to installation of the A/C unit, the raised floor
must be installed 7 mm higher than the raised floor
plates, as the mafund plates are compressed by the
weight of the A/C unit.
General design of the raised foor stand
10 mm
10mm
600 mm /
1000 mm
Raised floor
connection refer to
details on next page
Raised floor
Upper edge of
rough floor
Hammer head screw M8 x 30
Recommended concrete
foundations
(no (floor) finish)
Upper support part
Range of adjustment :
± 20mm
Supporting pipe
max 500 min 250
Continuous seal
Raised floor stand
Raised floor support
Mafund strips
E/0605/20/87
Detail of raised floor connection
1
2
3
4
5
6
7
8
9
10
11
12
13
Sealing detail
when distance Z < 100 mm
E/0605/20/88
Raised floor stand
Adjustable support plate
Adjusting nut
Support pipe
Support base
Mafund strips
Raised floor cut out angle
Continuous seal profile
Before unit installation
Raised floor plate
Angled bracket
Permanently elastic seal
Fixing
Sealing detail
when distance Z > 100 mm
9.4 Refrigerant Circuit Options
STULZ A/C units of the type A, G are equipped as standard with a refrigerant circuit which can be expanded
with various options.
Description
A/C unit type A with hot gas bypass extension
Low
temperature
section
Air section
Collector
Evaporator
Hot gas
bypass
Fan
The refrigerant circuit of your A/C unit is equipped with a compressor which is designed for 12 switching
cycles per hour. The following operating curve for the refrigerant circuit results from these switching on and off
phases.
On 100%
Compressor
Off 0%
In order to reduce the switching rate and thus increase the life of the compressor, the refrigerant circuit can be
enhanced by a hot gas bypass or with a suction throttle. The hot gas bypass has a control range of 50 to
100%.
E/0605/20/89
A/C unit type A with suction throttle extension
Low
temperature
section
Air section
Collector
Evaporator
Fan
Suction throttle
The suction throttle has a control range of 40 to 100%.
E/0605/20/90
Adjustable HP/LP switch
The compressor is controlled and monitored by the controller of your A/C unit. Permanently set high-pressure
and low-pressure switches are required as sensors for this. An adjustable version of these HP/LP switches is
supplied in order to individually adapt the switching points for the high pressure and low pressure to the
operating conditions.
Internal condenser
Technical Data
Type of condenser
for A/C unit
Condenser output
Air flow
No. of fans
Motor power
Air inlet temperature
Temp. of condensation
KSI 018 KSI 033
CCD/U
CCD/U
41-121 A 171-201 A
kW
17.5
32
m³/h
4000
7500
1
1
kW
0.55
2.2
°C
32
32
°C
48
48
V/-/Hz 230/1/50 400/3/50
Dim.
KSI 018
KSI 033
A
B
C
D
E
F
G
H
J
K
L
840
400
120
100
361
329
72
136
600
600
1850
1025
740
210
80
361
415
69
242,5
810
900
1950
The internal condenser is an option for A-type units and is installed
on the left side of the A/C unit. It contains a fan with a motor and
a heat exchanger which is connected with the A/C unit by copper
tubes.
E/0605/20/91
9.5 Air Circuit Options
EU5 filter
The EU5 filter is used instead of the standard EU4 filter and cuts down on air contamination to a greater extent.
Condensate pump
The condensate pump extracts the condensate water occurring in the condensate water tray and pumps it
into the local sewage circuit. The condensate water tray is located beneath the filter elements in the A/C unit.
A MARCH AB-1F pump is used which is installed in your A/C unit at the factory. The pump is provided with an
integral float switch. The float switch switches the pump on and off automatically. The 6 m long drain hose (6
mm diameter) is to be connected to the local effluent system. The pump is connected in accordance with the
terminal diagram (refer to "Appendix").
When routing the drain line, ensure that it is not kinked.
Return air suction from behind - Upflow
Dimensions
CCU
A
B
C
D
41-121
171-201
440
300
400
900
80
50
100
50
At the return air suction from behind
the air duct has to be fixed at the
back with M8 screws. In this case
the standard filter can not be used.
A special filter has to be installed in
the air duct, instead.
4xM8-nut set up from outside
E/0605/20/92
Air discharge plenum - Upflow
The air discharge plenum is set on the A/C unit without being screwed.
Dimensions
CCU
A
B
C
D
E
H
41-121
171-201
572
782
600
1000
425
625
525
825
325
425
500
500
E/0605/20/93
Unit base for air discharge
The unit base is designed for downflow units which are installed in rooms without a raised floor and serves for
the discharge of the supply air. With upflow units this unit base serves for the return air suction. The room air
to be cooled is sucked in through the air grilles, which are not shown in the illustration.
CCD/U 41-121
35
35
60
0
0
60
50
37.5
325
400
35
.5
37
37
.5
52
5
Installation
Please note that the unit base has to be bolted to the unit.
E/0605/20/94
5
52
Unit base for air discharge for CCD/U 171-201
315
insulation of foamed
material
13
3.5
35
51
5
315
400
35
8.5
8.5
43
6
5
41
6
33
.5
39
00
10
.5
8.5
51
5
78
2
39
8.5
42.5
60
42.5
315
5
41
16 x Ø3.2
13
3.5
E/0605/20/95
Base for duct connection and air damper - Upflow
The base is set on the A/C unit without being screwed. The duct is fixed on the base with 4 M8 screws.
Dimensions
Unit size
A
CCU 41-121
CCU 171/201
B
C
E
F
G
H
400 400 523 552 40 56 12x9.5 17
675 800 738 977 31.5 88.5 26x9.5 20
4xM8-nut set up from above.
(only for CCU 41-121)
E/0605/20/96
D
Air damper
An air damper can only be provided on the discharge side for downflow and upflow units. The most frequent
use of the air damper is shown, on the discharge side of upflow units. For the installation of an air damper on
the upflow unit a connection plate (see page before) is necessary.
Dimensions
Unit size
A
CCD/U 41-121
CCD 171/201
CCU 171/201
B
345 400
500 700
500 700
175
120
120
B
H
A
H
Continuous
flange, 38 mm wide
E/0605/20/97
Fresh air intake
By means of the fresh air intake outside air is taken in, conducted through a filter into the unit and used to cool
the room air. If the outside temperature is below the room temperature the required cooling capacity is reduced.
The fresh air intake consists of three parts:
1. Collar
2. Filter cartridge
3. Cover
The collar is bolted at the rear wall of the unit. The filter cartridge is put on the collar in the unit and is closed
with the cover. This way the outside air is only taken in via the filter surface.
Unit rear
side
Insulation
Collar
Dummy
rivet
Filter cartridge
Cover
We recommend to install an additional fan between the unit and the fresh air intake, to control the fresh air
ratio.
E/0605/20/98
Opening in the unit rear wall - Downflow
CCD 110 CW
CCD 200 CW
150
120
120
150
100 mm
30
30
1850
1850
100 mm
600
1000
Opening in the unit rear wall - Upflow
CCU 110 CW
CCU 200 CW
1000
1850
1850
600
100 mm
280
30
30
320
100 mm
150
350
E/0605/20/99
Ecocool
With the Ecocool function outside air is used for cooling the room air and is mixed with the return air via
louvers. Two louvers per unit are installed. At the downflow unit the louvers are situated on top and at the upper
part of the rear side, at the upflow unit the louvers are situated at the bottom part of the front and the rear side.
The louvers at the rear allow outside air to come into the unit. The louver on top of the downflow unit and at the
front of the upflow unit allow room air to come into the unit. The louver installed on top of the inside condenser
serves to diminish the exceeding pressure in the room, as a result of the intake of additional outside air. The
surplus room air flows via the opened louver into the inside condenser and through the fan intake and heat
exchanger (which are out of operation) to the outside.
To cut down the dust content of the outside air two filters (EU2 and EU4) are installed upstream the evaporator.
They are part of the delivery volume.
The controller C5000 and a special software are required for the louver control and must be ordered separately.
Actuators and end position switch
Louver actuator NM 24 - SR for fresh or return air
The louver actuator has no end position switch and is overload-proof. When the limit stop of the louver is
attained, the actuator stops automatically.
After switching on the power supply or actuating the push button on the actuator a function test with calibration
is automatically executed. The actuator scans the two end positions and adapts its electrical operating range
of 2-10 V DC and the running time of 150 s to the actual mechanical louver swing angle. The actuator then
adjusts itself on the position which is required by the control signal. The actuators are constantly supplied with
24 V AC. The control is realized with 0-10 V DC. The actuator NM24-SR is mounted on the fresh air louver.
Function test:
By pressing the button at the housing the gear shift is released, and the louver can be
operated manually.
Louver actuator NM 24 for return air (option pressure compensation)
The louver actuator has no end position switch and is overload-proof. When the limit stop of the louver is
attained, the actuator stops automatically.
The control is realized by a 24 V AC/DC signal.
Function test:
E/0605/20/100
By pressing the button at the housing the gear shift is released, and the louver can be
operated manually.
Configuration of the C5000
To start the A/C unit with the free cooling device, the special software has to be installed. (The EPROMs are
installed by Stulz Hamburg). After the start the software version is displayed at the C5000.
In the menu point "Control/module functions/cooling/ECO-louver the start parameters: start temperature and
gradient can be modified.
In the menu point "Service/equipment/cooling/ECO-louver the unit configuration must be determined (made
by Stulz Hamburg). For the ECO-louver the louver 1 field must be set on "S" ( = proportional).
Control
Two conditions are necessary for enabling the free cooling:
1. The room humidity must be within the limits, at which the unit control neither humidifies nor dehumidifies.
2. The outside temperature value, which can be set in the menu "Control/module functions/cooling/ECOdamper", must be passed under. The outside temperature is measured by an outside air temperature sensor
connected to the C5000.
The limit value can by adjusted from 0 to 99°C. In practical use the best results are obtained with a value in the
range of 16-20°C.
The free cooling is switched off (and thus the cooling by compressor is switched on), if either the outside
temperature rises above the adjusted value (ECO-off) in the above mentionned menu, or the room humidity is
half of the humidification hysteresis below the value, at which the humidification is turned off (point 1 in the
control diagram) or the room humidity is half of the dehumidification hysteresis above the value, at which the
dehumidification is turned off (point 2 in the control diagram).
The louvers are proportionally controlled. In the same extent, as the outside air louver opens, the room air
louver closes. The louver at the condenser is completely opened, when the free cooling is enabled and competely
closed at compressor operation.
E/0605/20/101
Control Diagram
▲
1. Condition for enabling the free cooling
1
▲
▲
Humidif.
Start
Point 1 Humidif.
Stop
rel. Humidity
▲
Dehumidification
hysteresis
2
2. Condition for enabling the free cooling
▲
▼
Eco-off
▲
0
Humidification
hysteresis
2
Dehumidif. Point 2 Dehumidif.
Stop
Start
▼
1
▲
▼
▲
Setpoint
▲
▼
▼
0
outside temp.
Wiring
ECO-louver control
The proportional signal (0-10V) is present to pin X1: 14+15 at the basic I/O-board.
Condenser louver control
The digital signal is present to pin X1: 6 at the extension I/O-board. The louver has to be configured.
Outside temperature sensor
A temperature sensor has to be connected to pin X1: 12 of the controller C5000.
Restrictions
GE-, CW- and dry cooler operation is no longer available. Another louver (e.g. at the discharge) can not be
controlled.
E/0605/20/102
Dimensions - CCD 41 - 121 with Ecocool louvers
front side
250
63
376
63
rear side
375
104
583
1311
1876
376
81
642
600
110
1986
104
583
E/0605/20/103
Dimensions - CCU 41 - 121 with Ecocool louvers
Front
Rear
49
376
250
63
376
213
63
1850
Left side
583
110
599
829
110
104
375
583
600
E/0605/20/104
104
Dimensions - Internal Condenser KSI 010 with Ecocool louvers
left side
rear side
280
front side
253
96.5
122.5
1366.5
1850
1960
404
50.5
50
50
300
63
91
250
376
63
131
400
129 125 129
383
E/0605/20/105
Dimensions - CCD 171 - 201 with Ecocool louvers
front side
583
104
63
1874
125 125 125 125 125 125
876
1184
1994
125 125 125
104
rear side
583
117
89
852
1000
876
E/0605/20/106
63
9.6 Control Options
C5000
Instead of the C1002 controller a C5000 controller can be fitted. For the operation of the C5000 exists a
separate manual.
Remote on/off switch
With this option you can also start your A/C unit from another point other than directly at the C1002 controller.
The switch required for this is also suitable for wall mounting.
Water detector
The water detector consists of two electrodes with a voltage difference of 24 V, which are fitted in the raised
floor. If water appears in the raised floor, a current flows between the electrodes, the C1002 switches off the
humidifier and the signal "LLS" appears on the display.
Fire stat
There are two versions of the fire stat available: provided with a heat detector, it triggers the signal "fire" if there
is excessive heat on the C1002. Equipped with a smoke detector, it reacts in a similar manner when there is
smoke. In both cases the C1002 switches off the A/C unit and closes the louvered flaps (if fitted).
E/0605/20/107
Extension card for C1002
This card is necessary for the complete functionality and a sequencing between two units together with a
water detector and a second heating stage. It is also necessary if an input for a fire stat and/or an input for an
Ultrasonic conductivity alarm in a unit with a compressor is needed.
With the extension card, additional inputs and outputs are provided to the CompTrol 1002, such as a louver
output, a second compressor output, two pressure alarms, an airflow alarm for a second module and an input
for a temperature limit. The extension card is fastened to the CompTrol 1002 by means of the two distance
pieces enclosed. The electric connection to the basic board is made with a 20-channel plug connector.
Heating 1
Heating 2
OEM humidification
ENS humidification
Sequencing
Water detector
Louver
Fire stat/smoke detect.
Temp. limitation
x
x
x
x
x
x
x
x
x
x
x
x
x
x x
x x
x x
x
x
x
x
x x x
x x
x
x
x x
x x x
x x x
x = extension card required
= this combination is not possible.
E/0605/20/108
Fire stat/smoke detect.
Temp. limitation
Sequencing
Water detector
Louver
Heating 1
Heating 2
OEM humidification
ENS humidification
When you need an extension card for CCD/U 41-201 A/G units :
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Appendix
The following list contains all documents which are supplied with your unit, apart from the operating instructions.
UNIT-SPECIFIC DOCUMENTS
Test report on unit final inspection ...........................................................................................
Test report on continuous testing .............................................................................................
Test report on final acceptance .................................................................................................
Test certificate for pressure test ................................................................................................
Replacement parts list ...............................................................................................................
Refrigerating diagram ................................................................................................................
Terminal plan for electrical engineering ...................................................................................
Wiring diagram ..........................................................................................................................
E/0605/20/109
Customer service
STULZ customer service ensures optimum operating reliability by means of preventative maintenance and
repair during the entire service life of your A/C units. Customer service is available to you round the clock. You
can contact our customer service at the STULZ branch responsible for you.
VICE
- SER
Z
L
STU
Your partner
for
a safe
climate
AIRCONDITIONING
For your service address please look at the back cover of this manual.
E/0605/20/110
STULZ GmbH
Klimatechnik
Holsteiner Chaussee 283
22457 Hamburg
Telephone: (040) 55 85 0 (switchboard)
Telex:
02 138 68
Telefax:
(040) 55 85 308
A/CUNITS
MINI-SPACE
AIRCONDITIONING
BRIEF OPERATING INSTRUCTIONS
Your A/C unit originates from the STULZ Compact climate product range and is used to air condition rooms. The
following Frigene refrigerant (CFC) is contained in the refrigerant circuit of your A/C unit at the following system
pressures:
Attention, A-Units
The refrigerant circuits are pre-filled at the works. The complete filling
weight has to be indicated an the maker's plate after the start-up.
Caution. Only use the refrigerant stated
on the maker's plate!
Refrigerant : R........
Quantity
: .......... kg
Nominal CFC 25 bar
Perm. water pressure 16 bar
Please obtain the type of your A/C unit from the type code on the maker's plate. Before commissioning the A/C unit,
it is essential to read and follow the operating instructions.
Switching the A/C unit on and off
The A/C unit is switched on and off by pressing an
on/off switch on the controller.
Controller
Switching off the complete A/C unit
The complete A/C unit is switched off
via the controller and via the built-in
master switch. To do this, open the door
of the elctric cabinet and put the master
switch in position "0".
Master switch
First aid measures
-
-
-
If health problems occur during or after handling
fluorinated hydrocarbons, a doctor is to be consulted
immediately. The doctor is to be informed that the
work involved using fluorinated hydrocarbons.
In the case of acute effect, the casualty is to be
brought into the fresh air as quickly as possible. The
casualty is never to be left unsupervised.
If the casualty is not breathing, immediately introduce
mouth-to-mouth resuscitation.
-
-
If the casualty is unconscious or very dazed they
must not be given any liquid.
Splashes of fluorinated hydrocarbons in the eyes can
be blown out by an assistant or fanned out. Then
rinse with water.
Notes for the doctor:
Do not give any preparations from the adrenalin
ephedrine group (nor any noradrenaline) to treat shock.
Obtain further information from the poison accident
centres.
E/0605/20/111

AIR CONDITIONING

Transcription

Similar documents

Shield Refrigerant Locking Cap Tri-fold

Rectorseal NOVENT Homeowner Trifold

Structure Of August Srew Air Compressor

Trane XR13 Air Conditioner Installation Manual

Tempstar Residential Products

AUTOMOTIVE - Vintage Air

case study - Adknowledge

TTA

VP-1 Leaflet 26/2/01

Chapter10 Cabin system