882 93615 00 HC3-300.1 AEC - GP20

Transcription

GP20-50 Series Portable Chillers
Reference Manual (PN: 882.93090.01) for
Complete Operation and Installation Instructions
(Available online at www.aecinternet.com)
Quickstart Installation Checklist
(Refer to main manual for complete installation instructions).
1. Connect 3-phase power based on nameplate data.
2. Apply power to chiller for at least 24 hours prior to start up.
3. Install properly sized plumbing between portable chiller and
primary processing equipment (supply and return).
4. Ensure proper pump rotation. (The pump motor should be
turning clockwise while looking at the motor fan end).
Unit Operation
(Refer to main manual and controller manual for complete operating
instructions).
Start Up
1. Add fluid to the reservoir tank until the level is near the top of the tank.
2. Turn power switch to ON position.
3. Depress the "On|Off"
button to start the pump.
4. Maintain the minimum tank level based on size of tank. Handheld display will notify you about tank level.
5. To change the setpoint, press the menu
button, press the up
highlight SETTINGS and press enter. Press the enter
FLUID SP line. Press the up
or down
to accept the value. Press the escape
or down
arrow button to
button to move the cursor to the CHILLED
button to increment or decrement the value. Press enter
button twice to return to the main status screen.
Shut Down
1. Depress the “On|Off”
button to shut down chiller.
2. Maintain power switch in the ON position.
Standard Display
AEC, Inc.
1100 Woodfield Road • Suite 588 • Schaumburg, IL 60173 USA
Tel. 847.273.7700 • Fax 847.273.7804
Part No: 882.93615.00
Bulletin No: HC3-300.1
Spare Parts Location
(See next page for Spare Parts List)
1
2
AEC, Inc.
Tel. 847.273.7700 • Fax 847.273.7804
Part No: 882.93615.00
Spare Parts List
(See previous page for Spare Parts Location)
Compressor
1
20 kW (5 hp)
Contactor/MCP
Crankcase heater
30 kW (7.5 hp)
Contactor/MCP
Crankcase heater
40 kW (10 hp)
Contactor/MCP
Crankcase heater
50 kW (15 hp)
Contactor
MCP
Crankcase heater
Motor Pumps
208-230/3/60
460/3/60
575/3/50
726.00332.02
726.00316.02
722.92093.00
726.00316.02
726.00333.02
726.00316.02
722.92094.00
726.00316.02
726.00333.02
726.00317.02
722.92094.00
726.00317.02
726.00272.02
726.00375.02
726.00333.02
726.00332.02
230/3/60
1.5-HP (1.1 kW) MCP
726.00305.02
1.5-HP (1.1 kW) Pump Seal
2-HP (1.5 kW) MCP
3-HP (2.2 kW) MCP
726.00306.02
726.00304.02
726.00303.02
726.00305.02
726.00304.02
162.00142.01
726.00316.02
5-HP (3.7 kW) Pump Seal
10-HP (7.5 kW) MCP
575/3/50
726.00303.02
162.00142.01
5-HP (3.7 kW) MCP
726.00304.02
162.00142.01
726.00306.02
2
722.92094.00
460/3/60
726.00306.02
726.00305.02
162.00142.01
726.00317.02
726.00316.02
726.00306.02
162.00142.04
Common Parts
Pump pressure transducer
733.00117.00
Low Refrigerant Pressure Transducer
733.00112.00
High Refrigerant Pressure Transducer
733.00113.00
High Refrigerant Pressure Switch
733.00103.00
To or From Process Thermistor
701.00195.00
Stainless steel thermistor sensor fitting
053.00005.00
Pendant Display
744.00234.00
10 ft display cable
700.00348.00
Flow switch
735.00109.00
Air Filter – GPAC20, GPAC40
161.01678.00
Air Filter – GPAC30, GPAC50
161.01679.00
AEC Document #
AEC, Inc.
Tel. 847.273.7700 • Fax 847.273.7804
Part No: 882.93615.00
Troubleshooting - Quick Guide
Problem
Possible cause
Compressor contactor holding coil open.
Solution
Check main disconnect, fuses, wiring, and
power lead to unit.
Voltage must be within plus or minus 10% of
nameplate rating.
Replace.
Replace control circuit fuse.
Check transformer.
Check for a short circuit.
Replace.
Add water or water/glycol solution as
required.
Reset and test.
Lower the leaving fluid temperature below the
leaving temperature you desire.
Allow time to cool and reset, then check for
high/low voltage. It must be within plus or
minus 10% of the nameplate rating.
Check for open loose compressor electrical
connections.
Failed compressor motor
Repair or replace.
Defective compressor auxiliary contact.
Repair or replace.
Broken wire in the compressor control
circuit.
Locate and repair.
No power.
Wrong voltage supplied to unit.
Defective display.
Unit does not run.
Control circuit fuse blown.
Defective control transformer.
Piping flow switch circuit open.
Pump motor off on overload.
Leaving fluid setpoint set higher than
temperature of liquid in system.
Compressor internal overload or MCP is
open.
Pump runs; compressor does not.
Plugged Y-strainer
Pump runs, compressor cycles at short
intervals.
Hot gas not coming on
Low water flow
Water temperature is too high.
Water/glycol mixture inadequate for
process.
Improperly set leaving fluid temperature,
warning, or fault set point
Refrigerant charge is low.
Pump process pressure low (refer to
curves for normal pressure for various
pumps).
Pump running in reverse.
Pump process pressure is too high.
Restricted water flow.
Check for foreign matter.
Restricted condenser air flow.
Unit runs continuously, but not enough
cooling power.
Unit low on refrigerant.
Compressor not operating efficiently.
Unit under-sized for application.
AEC, Inc.
Tel. 847.273.7700 • Fax 847.273.7804
Clean
Check hot gas analog output value through
status screen. Contact Service if output value
remains at 0% throughout compressor cycle.
Install bypass between to-and-from process
line
Make sure that the water/glycol mixture
protection is right for the process.
Adjust.
Call service to find and repair the leak, then
have refrigerant added.
Verify rotation; if running in reverse rotation,
reverse any two main power leads. Re-verify
for correct pump rotation.
Clean the system strainer.
Check for partially closed valves etc. Make
sure that all lines are properly sized.
Clean filters.
Clean condenser.
Check the refrigerant charge by viewing sight
glass on liquid line upstream of the expansion
valve.
Call service.
Call sales rep.
Part No: 882.93615.00

882 93615 00 HC3-300.1 AEC - GP20

Transcription

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