DAITSU

DAITSU
Split Type Air Conditioner
ENGINEERING DATA
Models:
H2SM-18RA03/R1(B)
Content
1.Description of product model coding and series introduction.......... 1
2.Specifications .........................................................................................4
3.Curves of performance ..........................................................................6
4.Description,dimension and function of main components
and accessories ....................................................................................9
5.Knock-down drawings ..........................................................................16
6.Brief introduction to electrical contreol functions .............................22
7.Circuit diagram & wiring diagram.........................................................29
8.Abnormity diagnose ..............................................................................34
9.Trouble shooting ...................................................................................37
10. Refrigerating cycle diagram ...............................................................39
11.Noise level test chart and air velocity distribution ...........................41
12.Installation and accessory parts ........................................................44
No.001054
Description of product model
coding and series introduction
1
Description of product model coding and series introduction
Introductory Remarks
A. Description of coding rules of unit model
Coding rules and descriptions are as follows:
2
1
2
3
4
6
5
7
8
9
10
11
Inverter type:(B)
Refrigerant type:R1(R407C),R2(R410A)
Applicable voltage:3(220~230V),4(240V)
Applicable frequency:0(50HZ),1(60HZ)
Developing sequence :A,B,C,D...
C/L-cooling only
Function code
R/H-heat pump
E-electric aided heating
Nominal cooling capacity (BTU/h)with the first two
numbers based on thousand unit
The structure code of indoor & outdoor unit: S (wall-mounted),W (window type),P (cabinet type)
One by two type
H-Abbreviation of Haier
Examples:
H2SM-18RA03/R1(B),It represents inverter wall-mounted multi-type split type room air conditioner.The cooling capacity
is 18000BTU/h,and the power supply is 220-230V/50Hz,”A” means the improvement
B.Standard Situation/Conditions
No.
Operating condition
indoor air status
DB C
WBOC
outdoor air status
DB C
WBOC
1
Norminal cooling
27OC
19OC
35OC
24OC
2
Norminal heating
20OC
15OC
7OC
6OC
3
Norminal electrical
heating
---
---
---
---
O
2
O
Description of product model coding and series introduction
C.Series brief introduction
1.comfortable:wide-angle airflow
The vertical dual-flap and horizontal wide-angle louvers ensure the cool(warm air reaches every
corner of the room.
2.Health air purifying and negative ion function
An air purifying filter with deodorizing and disinfecting functions
keeps the air clean and users
healthy.The negative ion generator can produce the negative ion that make the air fresher and cleaner.
3.Quiet operation
Fan With Random-pitched Blades.
Random-pitched blades help reduce operating noise while maintaining a high airflow rate.
2.Engergy efficient
The design of inner-grooved copper tube greatly increases the refrigerant contact area and the
efficiency of cooling/heating functions.
5.Convenience
Auto restart and washable panel:
The grille can be removed easily and washed when necessary.Any series have the function then
even if the power falls when the unit is operating unit will automatically return to the operating
settings in use before the power failure when power is restored.
6.Wide variety of functions
24-Hour Timer:
24-hour timer allows users to select the exact time they would like the air conditioner to turn on
and to turn off.Timers on previous models operation based on the number of hours of desired
operation.
7.Night-set models
When the air conditioner is operationg on the timer-off circuit.The preset room temperature
gradually rises(going down in heating)before the unit stops as shown delow.Users can sleep
comfortably without sudden change in temperature.
8.Program”dry”
This function automatically reduces the level of humidity while maintaining the preset indoor
temperature.
3
Specifications
4
Specifications
Model: H2SM-18RA03/R1(B)
Single
Cooling capacity(W)
Cooling coefficient(W/W)
Cooling power input(W)
Double
5000
3350
(500-3800) (700-6000)
2.17
2.23
1500
2300
(300-1600) (320-2500)
1.5X10-3
Moiture removal(m3/h)
Operating voltage range(V)
220-230 ~
Operating temp. range ( C)
-7-43
O
Single
Heating capacity(W)
4200
(600-5200)
6600
(700-8000)
Heating coefficient(W/W)
2.10
2000
(300-2000)
2.40
2500
(320-3000)
Heating power input(W)
Frequency range(Hz)
Refrigerant type
Variation of temp. adjust ( C)
+1
Air sending angle
indoor unit
Fan type
outdoor unit
Climate type:
T1
Class of electric shock
O
Double
50
R407C
60
O
Cross flow fan
Axial flow fan
I
Indoor unit noise( dB(A) )
(cooling)
41/37/31
Outdoor unit noise( dB(A) )
(cooling)
54/51/48
Indoor unit noise ( dB(A) )
(heating)
40/36/31
Outdoor unit noise( dB(A) )
(heating)
54/51/48
Net dimensions ( mm)
(indoor unit)
Packaging dimensions ( mm)
(indoor unit)
Net/gross weight (kg)
(indoor unit)
Max. mounting height
difference (m)
Refrigerant charge(g)
(R407C)
Frequency of filter cleaning
Compressor model
Compressor oil charge (cc)
Maxi. length of connecting
pipe (m)
Cap. tube type muffle
model:
Fan speed(H/M/L)(r/min) cool
(indoor unit)
heat
Fan speed(r/min)
(outdoor unit)
760 x182x285
822x267x297
8.5/10.6
Net dimensions ( mm)
(outdoor unit)
Packaging dimensions ( mm)
(outdoor unit)
Net/gross weight (kg)
(outdoor unit)
810X288X680
949X406X745
56/61
1600
indoor unit
outdoor unit
Current entering side
(indoor/outdoor)
Once/2 weeks
Max. refrigerant charge (g)
1610
C-7RB237H03AA
Compressor manufacturer
SANYO
Compressor protector type
length(mm)
drain hose
diametre(mm)
Internal
2000
16
Piling layers
5
600
15(single)/20(double)
electronic expansion
valve
1300/1110/920
1300/1110/920
860/780/560
Cut-off vavle(inch) two-way
three-way
1/4
1/2
Max. operating pressure at
warm side(Mpa)
2.65
Type of tube of evaporator
and condenser
Size of tube of evaporator
and condenser(mm)
Appearance features of indoor
unit
Appearance features of outdoor
unit
Max. operating pressure at
cool side(Mpa)
5
8
4
indoor
Internal thread
O7/O9.52
plastic
iron
2.65
Curves of performance
6
Curves of performance
Curves of cooling capacity and heating capacity as a function of outdoor
temperature(-7OC~43OC)
15
20
25
15
20
25
7
8
Description,dimension and function of
main components and accessories
9
Description,dimension and function of main components and accessories
Net dimension of indoor unit and outdoor unit
Indoor unit
760
250
182
295
680
583
815
319.5
352
869
10
Description,dimension and function of main components and accessories
11
12
2
-7 /-8
(INVERTER)
13
14
15
Knock-down drawings
16
Model: H2SM-18RA03/R1（B）
1 Exploded View
17
18
2 PARTS LIST
MODEL:
No. in exploded
view.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
H2SM-18RA03/R1（B）
INDOOR UNIT
Name of part
Specialized code
Drain hose
Air purifying
Remote controller
Guarding ring
Battery
Screw assembly
Inlet grille
Decorate panel
Air filter
Front panel
Display panel fixation 1
Display panel fixation 2
Display panel
Evaporator assy.
Bearing
Cross flow fan
Negative ion generator
Drain pan assy.
Wiring clip
Piping support
Stepping motor
Electric box cover I
Electric box cover II
Cover for fan motor
Louver 1
Louver 2
Frame assy.
Fan motor
Fix board
Mounting plate
PCB
Electric box
Terminal block
001A1434039
0010805043
0010403015
001A1433307
001A4600001
0010600115
0010202789D
0010203390
0010201841
0010202788
0010202643
0010201857
0010802894
0010703018
0010801543
0010202133
0010401985
0010802911
0010201995
0010201858
0010401869
0010201852
0010201853
0010201860
0010202791
0010202792
0010802568
0010401823
0010202793
0010101274
0010402946
0010201851
0010402607
19
QTY.
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
remark
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
indoor unit
MODEL:
NO.
In exploded
view
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
H2SM-18RA03/R1（B）
OUTDOOR UNIT
Name of part
Front guard
Handle
Left Side panel
Upper panel
Front panel
Axial fan
Motor
Motor support
Right Side panel
Stop valve
Heat exchanger
Rear guard
4-way valve
Stop valve support
Capacitor clamp 2
Capacitor clamp 1
Bottom panel assy.
Compressor
PCB(power controller)
————
Terminal block
22
23
24
Separator plate assy.
Electrical box
Damping plaster
25
Coil for electronic expansion valve
26
27
28
29
30
31
32
33
34
35
36
37
38
Reactor
Power model
BRIDGE DIODE
PCB(main controller)
Fuse250v
Return gas sensor
Temperature sensor of compressor
Evaporator sensor
4-way valve winding
Rubber mat
Stop valve
AB temp. sensor
Defrost. temp. Sensor
20
Part specialized
code
001A1303126A
001A1436182
001A1101039
0010100471
001A1101038
001A2331024
001A3000076
001A1301133
001A1101041A
0010701920
001A0400039
001A1303128
0010700029
001A1301127A
001A1431404
001A1431403
001A0100237
0010702259
0010401975
————
001A4000112
001A4000113
001A4000114
0010800009
001A1431400
001A1755124
001A2500058
001A2500059
001A3800042
0010400475
001A3700015
0010402930
001A4100013
001A3900062
001A3900074
001A3900063
001A2500053
001A1752769
0010701919
001A3900060
001A3900061
QTY.
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
1
——
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
4
2
1
1
remark
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
OUTDOOR UNIT
Brief introduction to electrical control functions
22
7. INTRODUCTION OF ELECTRIC CONTROL FUNCTION
Including brief introduction of items of inverter 2 by 1 series air conditioner and electric
control function
H2SM-18RA03/R1(B)
7.1 Corresponding operation mode of EMERGENCY SWITCH
If the time of pressing the switch is less than 5 seconds, it should be EMERGENCY
OPERATION; if over 5 seconds but less than 10 seconds, should be TEST RUN.
If the time is over 10 seconds but less than 15 seconds, it is the PREVIOUS TROUBLE
DISPLAY (also called TROUBLE RECORD).
When TEST RUN, EMERGENCY OPERATION, TROUBLE RECORD are displayed, they
can be stopped by using remote control or pressing the switch again.
During remote control, press this switch to stop.
When powered on, even if pressing this switch continuously, the remote signals can also
be received.
When stopped, if pressing this switch, the maximum time can not receive remote signals
is 15 seconds. 15 seconds later, it can receive the remote signals.
EMERGENCY OPERATION:
When the time of pressing the switch is less than 5 seconds, the buzzer will sound once
when pressing, the power indicator light will light up. After releasing the switch, the unit
starts EMERGENCY OPERATION. When the EMERGENCY OPERATION starts, the
indoor heat sensitive resistor does not reach 23℃ (over 25.7K), the unit starts HEATING
operation; when temperature reaches 26.6℃ (21.3K), the sensor is OFF; when the heat
sensitive resistor is over 23℃ (under 25.3K), the unit starts COOLING operation, the set
temperature is 26℃ (22K), airflow is AUTO.
TEST RUN:
When the time of pressing the switch is over 5 seconds, the buzzer will sound twice,
release the switch, the unit will start TEST RUN. When the time reaches 10 seconds, the
TEST RUN is cancelled, and the unit starts TROUBLE RECORD display.
The airflow is “HIGH”, the unit starts COOLING operation, 30 minutes later it stops.
TROUBLE RECORD DISPLAY mode:
When the time of pressing the switch is over 10 seconds, the buzzer will sound 3 times,
after releasing the switch, the unit starts TROUBLE RECORD DISPLAY mode. When the
time reaches 15 seconds, the power indicator light will go out, and the TROUBLE
RECORD DISPLAY mode is cancelled.
The previous alarm contents are displayed by the lighting up, flash, going out of the
power indicator light, timer indicator light and operation indicator light.
30 seconds later, the TROUBLE RECORD DISPLAY mode is deleted.
During the display, all the other remote signals can not be received except for stop signal.
When there is no trouble, there will be no display, only the buzzer sounds.
23
1. Ab n o r m i t y d i a g n o s e
For the appeared abnormal phenomena, please refer to the following table for trouble analysis and
troubleshooting:
List of error code:
Error display
Abnormity mode
Indoor
Outdoo
r
Automati
c restore
Possible reason
Running
Heat
Cool
Abnormity of indoor
thermistor
★
■
■
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity
of
thermal conversion
thermistor
★
□
□
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity
of
defrosting thermistor
□
□
★
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity
discharging
thermistor
★
□
■
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity of control
board thermistor
□
■
★
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity of module
thermistor
□
★
□
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity
of
outdoor thermistor
□
★
■
*
*
1. Inserter does not contact well or
control board is not good.
of
*
Transmission
abnormity
■
Compressor running
abnormity
★
■
□
*
Overhigh
discharging
temperature
protection
■
★
■
*
■
★
*
1. There is great interference
source around
2. Incorrect wire connection or
control board is not good.
1. Check if compressor shaft is
seized.
2. Whether power module is
damaged
1. Whether
system
gas
is
insufficient or charged gas is
too much.
2. Whether system voltage is too
high (above242V) or too low
(below 187V)
3. Whether capillary tube is
blocked.
4. Whether sensors or control
board
components
are
abnormal.
5. Whether the indoor/outdoor
ambient temperature is too
high.
1.
AC
protection
current
★
★
■
*
2.
3.
24
Whether system is charged too
many gases.
Whether voltage is too low
(below 187V).
Whether CT or control board
component is abnormal.
1.
DC
protection
current
Insufficient
protection
current
2.
★
★
□
*
3.
Outdoor
control
board temperature
protection
■
■
★
★
□
*
★
*
1.
2.
Whether voltage is too low.
Whether control board
damaged.
1.
Whether control board is
abnormal.
Whether
outdoor
ambient
temperature is too high.
2.
1.
2.
Module temperature
rising protection
□
★
★
*
3.
4.
1.
2.
3.
High-load protection
★
★
★
*
4.
5.
1.
CT
wiring
disconnected
protection
★
■
★
*
2.
3.
*
EEPROM abnormity
★
□
□: Lightening
★: Flashing
■: Blackout
is
Whether compressor shaft is
seized.
Whether power module is
damaged.
Whether heat emission glue is
evenly distributed.
Whether system voltage is too
high (above242V) or too low
(below 187V)
Whether filter is blocked.
Whether the indoor/outdoor
ambient temperature is too high
Whether system is charged too
much gases.
Whether
control
board
component is damaged.
Whether voltage is too high or
too low.
Whether control board is
damaged.
Whether
4-way
valve
is
converted.
Whether charged gas is normal
1.
Whether control
damaged.
board
is
2.
Whether control
damaged.
board
is
★
*
Note:
Whether compressor shaft is
seized.
Whether power module is
damaged.
Whether system voltage is too
high (above242V) or too low
(below 187V)
* Indicating that this function is provided.
7.2 DEFROSTING OPERATION
(1) The condition of starting defrosting
After HEATING operation start, or after the previous defrosting operation has
finished about 40 minutes, and the thermostat is at ON state during HEATING
operation, the defrosting heat sensitive resistor is less than 4.2℃ and has checked
for over 2 minutes.
(2) The condition of canceling defrosting
The defrosting heat sensitive resistor is over 15℃, or 9 minutes 15 seconds after
25
defrosting start
(3) Defrosting process
When defrosting starts, the defrosting signal is sent to indoor unit, the outdoor fan
motor and compressor stop, simultaneously, the electronic expansion valve are
totally open. 45 seconds later, 4-way valve is OFF, the compressor operates in 50Hz
speed.
30 seconds later, the compressor operates in 120Hz speed. It is forbidden to cancel
defrosting operation unless 75 seconds have elapsed after the defrosting start.
However, in rated operation, the compress operates in rated frequency.
9 minutes 15 seconds after the defrosting operation start, or when the defrosting
heat sensitive resistor detects it is over the temperature of canceling defrosting to
cancel defrosting operation.
After it meets the condition to finish defrosting, the compressor stops, the electronic
expansion valve is at pre-defrosting standard open degree.
45 later, if the thermostat is ON, the outdoor fan motor operates in LO, 2 seconds
later, the 4-way valve is ON, after operating in 58Hz for 30 seconds, the compressor
will operate in specified frequency.
DEFROSTING FLOW CHART
2 分 2 min
压缩机 Compressor
四通阀 4-way valve
室外风机 Outdoor fan
motor
Outdoor fan
Defrosting process
4-way valve
Defrosting process
Compressor
55S
5S
Defrosting process
55S
60S
Defrosting finish
compressor restart
7.3 Control of 4-way valve (HI refers to the 4-way valve is open, LO refers to the 4-way
valve is stopped)
When HEATING HI, in 3-minute waiting, 2 minutes 50 seconds HI, the rest 10 seconds
LO
When DEHUMIDIFYING LO
When HEATING (after COOLING & DEHUMIDIFYING 3-minute waiting is finished) HI,
after 3-minute stop still is HI
When transferring to COOLING & DEHUMIDIFYING from HEATING, 3 minutes later is
LO
When transferring to HEATING from COOLING & DEHUMIDIFYING, 3 minutes later is HI
In HEATING, when the thermostat is OFF, it still is HI; in DEFROSTING, perform
DEFROSTING control
制热 HEATING 制冷除湿 COOLING & DEHUMIDIFYING 停止 STOP
压机 COMPRESSOR ON 四通阀 4-WAY VALVE ON 3 分待机 3-minute waiting
3 分 3min 2 分 50 秒 2min 50s
26
7.4 Control of indoor unit air sending
Heat start control (excluding defrosting, thermostat is ON):
1) For the first operation or after defrosting, when HEATING starts but fan motor does
not start to run, thermostat is ON, heat exchanging heat sensitive resistor is over
25℃, the fan motor starts in weak wind; when under 25℃, the fan motor stops,
until reaching to over 25℃. In fan motor operating state, start with weak wind.
2) When detecting over 35℃, or the fan motor has started operating for 4 minutes, it
will run as set fan speed, (4 minutes is counted after 3-minute waiting, thermostat
is ON and fan motor starts rotating).
3) When operating in set fan speed, if the temperature does not reach 25℃, it is
weak wind.
设定风速 SET FAN SPEED 弱风 WEAK WIND 4 分钟 4min
7.5 Indoor unit mode output selection: PIN36 PIN37 (1-the down-lead of this chip is
connected with high level; 0- the down-lead of this chip is connected with low level)
PIN37
PIN36
The down-lead of corresponding chip
1
1
Indoor unit is 25 series (actually called 32 series)
0
1
Indoor unit is 36 series or 40 series
1
0
Indoor unit is 50 inverter packaged type indoor unit
0
0
Indoor unit is 71 packaged type indoor unit
7.6 Operation mode
Divided into COOLING, DEHUMIDIFYING, HEATING three operation modes
COOLING & DEHUMIDIFYING OPERATION:
According to the difference between the remote setting and the temperature set to
determine the condition of indoor unit operation frequency section, E= indoor temperature
– temperature set
According to the value of temperature difference to determine the frequency section of
indoor unit and sent to outdoor unit, by which to determine the operation frequency of
outdoor unit
There is 1℃ deviation compensation.
Simultaneously, the thermostat ON once, and can not be OFF within 6 minutes
HEATING OPERATION:
According to the difference between the remote setting and the temperature set to
determine the condition of indoor unit operation frequency section, E= indoor temperature
– temperature set
According to the value of temperature difference to determine the frequency section of
indoor unit and sent to outdoor unit, by which to determine the operation frequency of
outdoor unit
There is 1℃ deviation compensation.
Simultaneously, the thermostat ON once, and can not be OFF within 6 minutes
In COOLING & DEHUMIDIFYING, the heat exchanging heat sensitive resistor is under 2
℃ (1BH), the displayed section is 1; after 3 minutes, if the heat sensitive resistor is over
4℃ (1EH), it resumes to normal control; within 30 minutes after resuming to normal
27
control, the maximum displayed section is 3.
When the displayed section is 1, the heat exchanging heat sensitive resistor will be under
0℃ (18H) for about 1 minute, the thermostat is OFF, the unit will be in 3-minute waiting
state, then when the heat exchanging heat sensitive resistor is over 2℃ (1BH), section 1
will resume.
7.7 Low load protection control
When the heat exchanging heat sensitive resistor is abnormal, this protection should be
cancelled.
热敏电阻 Heat sensitive resistor
设定区段 Set section
区段 3 Section 3
区段
1Section 1 1 分 1min
3 分待机 3-minute waiting 3 分以上 Over 3min
30 分钟内
Within 30min
Thermal conversion temperature:
2ºC
-0.5ºC
Display
frequency
A
B
Normal
Normal
Normal
Limit
Min. frequency
Min. frequency
Stop
Min.
Stop
Limit
Normal
Min
Limit
7.8 Control of outdoor fan speed
2 seconds before compressor starts, start in LO
20 seconds after compressor stops, OFF
When it is over 40Hz, operation mode, number of sets in operation and the temperature
of condenser determine the fan speed.
In COOLING operation and the over 40Hz single set operates, if the temperature of
condenser is less than 35℃, the fan speed will be LO; if it is over 43℃, fan speed is HI
(98.8.31).
According the number of operation frequency the fan speed will switch between HI
(HEATING) and ME (COOLING & DEHUMIDIFYING).
When two units are in COOLING operation: if in LO speed, the temperature of sensor to
determine outdoor defrosting ≥ 43℃, the outdoor fan motor will be in HI speed. If the
temperature of sensor to determine outdoor defrosting < 35℃, the outdoor fan motor will
be in LO speed. For two units in COOLING operation, if one of the two indoor units is
packaged type, the outdoor unit will be HI, LO speed; if neither of them are packaged
type, the outdoor unit will be ME, LO
When single outdoor unit is in COOLING operation, it is ME, LO speed
When single outdoor unit is in HEATING operation, it is ME, LO speed
When two outdoor units are in HEATING operation, they are HI, LO speed
28
Circuit diagram & wiring diagram
29
Circuit diagram
outdoor unit
H2SM-18RA03/R1(B)
30
Circuit diagram
indoor unit
R25
+5
CN3
R18
10K
R22
+12
R15
R19
33K
10K
1K
C27
102
Q3
9013
远程通信
CN11
FUSE
C11
T3.15A
0.1uF/275V
C10
1
1N4007
IC7
1N4007
2
ZE1
CN15
10K
Q2
9013
D4
1N4007
BT1
4
220VL
R17
D2
0.1uF/275V
LX
1
D5
S14K350
D3
D1
20mH
1N4007
1N4007
C12
104
C1
2200U/25V
+5
3
Vout
C3
C14
104
220U/16V
7805
2
3
1
Vin
GND
27
1
2
1
220VN
+5
+5
R8
10k
R47
10k
Q1
10K
BP1
R16
R11
4.7K
1K
9013
+5
磁保护开关
Q5
9013
Q9
9013
+5
CN12
10k
R43
2.2K
IC4
C16
103
室内外通信
R39
R45
2.2K
220V-N
R46
TLP521
R44
D7
6
5
4
1N4007
D6
CN16
1
1N4007
10K
C15
102
TLP371
1
2
+5
1
2
3
4
330
¼¯ÖпØÖƽÓÊÕ
¼¯ÖпØÖÆÊä³ö
R40
10K
·ç»ú·´À¡
ÊÒÍâͨÐŽÓÊÕ
R29
51K
C30
102
C31
102
C32
103
CON3
ÊÒÍâͨÐÅ·¢ËÍ
1K
Ò£¿Ø½ÓÊÕR27
R28 1K
1
2
3
TXD
RXD
·çËÙ·´À¡
PGÊä³ö
¸ºÀë×Ó
C9
100u/16v
C6
PG输出
+12V
IC6
R20
10K
C24
104/50V
×ÏÍâÏß
´Å±£»¤¿ª¹Ø
A
B
C
D
2UF 450V
TLP3526
内风机
R21
680
R7
4.7K
0.01U*120/300V
R41
27
SDA
A
B
C
R30
22K
220V-N CN14
10K
AB32
PTC5
PTC3
PTC2/MCLK
PTC1
PTC0
OSC1
OSC2
CGMXFC
VSSA
VDDA
VREFH
PTD7
PTD6/TACLK
PTD5
PTD4/TBCLK
PTH1/KBD4
PTH0/KBD3
PTD3
PTD2
AVSS/VREFL
VDDAREF
PTD1
PTD0
ATB7/ATD7
ATB6/ATD6
ATB5/ATD5
ATB4/ATD4
ATB3/ATD3
ATB2/ATD2
ATB1/ATD1
ATB0/ATD0
PA7
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
R13
³ýʪָʾµÆ
ÖÆÈÈָʾµÆ
+5
10K
CX1
4M
¸ºÀë×Ó
1
ÖÆÀäָʾµÆ
ÔËÐÐָʾµÆ
¶¨Ê±Ö¸Ê¾µÆ
½¡¿µÖ¸Ê¾µÆ
C4
100u/16v
C17
104/50V
10K
C18
104
+5
R6
10K
R1
+5
1K
XT
SW
C22
103
C20
C21
102
CN4
+5
102
+12
CN5
+12
×ÏÍâÏß
Q6
9013
R35
330
CN7
Ï°ڷ粽½øµç»ú
R31
10K
12V
ÉÏ°Ú·ç²½½øµç»ú
31
C8
4.7UF/50V
C7
4.7UF/50V
1
2
IC3
2803
104/50V
R26
10K
Ëõʱ
+5
C33
R37
1K
2
1
C5
100u/16v
C19
104/50V
908AB32
+5
Q8
9013
R10
+5
D
Q4
9013
1
RL1
JQ1a-12V
D8
1N4007
CN10
9
8
7
6
5
4
3
2
1
RC1
+12
+5
24C02A
PTC4
IRQ
RST
PTF0/TACH2
PTF1/TACH3
PTF2/TACH2
PTF3/TACH3
PTF4/TACH0
NC
PTF7
PTF5/TBCH1
PTF6
PTE0/TXD
PTE1/RXD
PTE2/TACH0
PTE3/TACH1
PTE4/SS
PTE5/MISO
PTE6/MOSI
PTE7/SPSCK
VSS
VDD
PTG0/KBD0
PTG1/KBD1
PTG2/KBD2
PA0
PA1
PA2
PA3
PA4
PA5
PA6
10
11
12
13
14
15
16
17
18
1
2
3
+5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
·çËÙÑ¡Ôñ 24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
CN8
1
220VL
SW1
8
7
SCL 65
IC1
C28
104
+5V
+5
R36
10K
C23
103
R14
R42
Q7
9013
CN2
IC2
102
R12
10K
+5
IC5
1K
C29
C26
102
1M
1
2W6.8K
C25
104
10K
R32
1
2
R9
3k
·çËÙÑ¡Ôñ R34
3
LED
+5
R33
10K
R38
2
100
R24
1
12V
R23
×ÏÍâÏß
CN1
ÊÒÎÂ
R2
1K
R3
1K
Å̹Ü
4
3
2
1
R5
20K 1%
R4
3.3K 1%
½¡¿µÖ¸Ê¾µÆ
¶¨Ê±Ö¸Ê¾µÆ
ÔËÐÐָʾµÆ
ÖÆÀäָʾµÆ
³ýʪָʾµÆ
ÖÆÈÈָʾµÆ
Ò£¿Ø½ÓÊÕ
+5
1
2
3
4
5
6
7
8
9
Wiring diagram
unit
WIRING DIAGRAM,INDOOR
SIGNAL
RECEIVER
BOARD
AMBIENT TEMP.
SENSOR
M
0010546148
FAN MOTOR
PIPING TEMP.
SENSOR
louver motor
R W
CN4 CN3 CN2 CN1 SW
ION GENERATOR
louver motor
CN8
CN5 CN6
CN7
CON1- 2
T3.15A/ 250VAC
CN10
FUSE
indoor
CN14
Y/ G
CN16
CON1- 1
CN11
CN15
W
B
R
1(N) 2(L) 3(C)
TO OUTDOOR UNIT
Y/ G
R: RED
BL: BLUE
BR: BROWN
NOTE:
W: WHITE
WHEN THE UNIT HAS NOT THE FUNCTION
OF HEALTH WITHOUT THE PARTS IN THE
DOTTED LINE.
B: BLACK
Y/ G: YELLOW/ GREEN
32
Wiring diagram
outdoor unit
LW
HW
LV
HV
LU
HU
0V
5V
13V
ARM
COMP.
RS C
B
N
-
R WB
W
V
U
+
P
R
Y
200uF/250V
CAPACITOR
CN7
CN8
CN9
SUCTION
TEMP. SENSOR
CN10
R
+
1
-
BRIDGE
VECTIFIER
B
R
B
R
A
W
CN4
4-WAY VALVE
R
W
CN23
CN5
CN6
CN2
CN22
A(C)
A(L)
A(N)
B(C)
B(L)
B(N)
L
N
POWER PLUG
7363647
Y/G
W
B
BR
FUSE
B W
250V/25A
POWER RELAY
R
FAN MOTOR
G B
CN3
CN21
CN20
CN17
CN19
EXPANSION VALVE
CN14
CN16
EXPANSION VALVE
CN13
CN12
CN11
EVAPORATER
TEMP. SENSOR
DISCHARGE
TEMP. SENSOR
B
A
2
BRIDGE
VECTIFIER
-
DEFROST TEMP.
SENSOR
ROOM
B
+
TEMP. SENSOR
B
B
WIRING DIAGRAM OF OUTDOOR UNIT
BL Y G B
+
-
W
+
-
GREY
WHITE
1
CAPACITOR 2
200uF/250V
+ CAPACITOR
-
B
W:
OR ORANGE
Y/G: YELLOW/GREEN
G:
REACTOR
YELLOW
BLACK
Y:
B:
BLUE
RED
BROWN
R:
BR:
BL:
33
Abnormity diagnose
34
Abnormity diagnose
1. Abnormity diagnose
For the appeared abnormal phenomena, please refer to the following table for trouble analysis and
troubleshooting:
List of error code:
Error display
Abnormity mode
Indoor
Outdoo
r
Automati
c restore
Possible reason
Running
Heat
Cool
Abnormity of indoor
thermistor
★
■
■
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity
of
thermal conversion
thermistor
★
□
□
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity
of
defrosting thermistor
□
□
★
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity
discharging
thermistor
★
□
■
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity of control
board thermistor
□
■
★
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity of module
thermistor
□
★
□
*
*
1. Inserter does not contact well or
control board is not good.
Abnormity
of
outdoor thermistor
□
★
■
*
*
1. Inserter does not contact well or
control board is not good.
of
*
Transmission
abnormity
■
Compressor running
abnormity
★
■
□
*
Overhigh
discharging
temperature
protection
■
★
■
*
■
★
*
1. There is great interference
source around
2. Incorrect wire connection or
control board is not good.
1. Check if compressor shaft is
seized.
2. Whether power module is
damaged
1. Whether
system
gas
is
insufficient or charged gas is
too much.
2. Whether system voltage is too
high (above242V) or too low
(below 187V)
3. Whether capillary tube is
blocked.
4. Whether sensors or control
board
components
are
abnormal.
5. Whether the indoor/outdoor
ambient temperature is too
high.
1.
AC
protection
current
★
★
■
*
2.
3.
35
Whether system is charged too
many gases.
Whether voltage is too low
(below 187V).
Whether CT or control board
component is abnormal.
Abnormity diagnose
1.
DC
protection
current
Insufficient
protection
current
2.
★
★
□
*
3.
Outdoor
control
board temperature
protection
■
■
★
★
□
*
★
*
1.
2.
Whether voltage is too low.
Whether control board
damaged.
1.
Whether control board is
abnormal.
Whether
outdoor
ambient
temperature is too high.
2.
1.
2.
Module temperature
rising protection
□
★
★
*
3.
4.
1.
2.
3.
High-load protection
★
★
★
*
4.
5.
1.
CT
wiring
disconnected
protection
★
■
★
*
2.
3.
*
EEPROM abnormity
★
□
□: Lightening
★: Flashing
■: Blackout
is
Whether compressor shaft is
seized.
Whether power module is
damaged.
Whether heat emission glue is
evenly distributed.
Whether system voltage is too
high (above242V) or too low
(below 187V)
Whether filter is blocked.
Whether the indoor/outdoor
ambient temperature is too high
Whether system is charged too
much gases.
Whether
control
board
component is damaged.
Whether voltage is too high or
too low.
Whether control board is
damaged.
Whether
4-way
valve
is
converted.
Whether charged gas is normal
1.
Whether control
damaged.
board
is
2.
Whether control
damaged.
board
is
★
*
Note:
Whether compressor shaft is
seized.
Whether power module is
damaged.
Whether system voltage is too
high (above242V) or too low
(below 187V)
* Indicating that this function is provided.
36
Abnormity diagnose
The warning LED of outdoor PCB blinking times show the abnormalty as below:
1 time, pipe temperature sensor A faulty;
2 time, pipe temperature sensor B faulty;
3 time, evaporating temperature sensor faulty;
4 time, suction temperature sensor faulty;
5 time, defrosting temperature sensor faulty;
6 time, discharging temperature sensor faulty;
37
Trouble shooting
37
38
Refrigerating cycle diagram
39
40
Noise level test chart and air velocity distribution
41
42
43
Installation and accessory parts
44
12
C
8
D
15
E
The
45
G
3/8
46
12.7mm(1/2")
47
48
Singal line
H2SM-18RA03/R1
H2SM-18RA03/R1(B)
49
50
(R407C)
3.The purging Method of the indoor unit B is the same as the indoor unit A.
51
9.52
3/8
12.7mm
(1/2")
9.52
3/8
12.7mm
(1/2")
52
53