Carrier 30XW150-400 Refrigerator User Manual


 
CL-2
-
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - -
CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE
Condenser Water System Check
1. All condenser water valves are open. Ye s No
2. All piping is connected properly. Yes No
3. All air has been purged from the system. Yes No
4. Condenser water pump is operating with the correct rotation. Ye s No
5. Condenser water pump starter interlocked with chiller. Ye s No
6. Condenser water flow switch operational. Ye s No
7. Inlet piping to condenser includes a 20 mesh strainer within 10 ft. Ye s No
8. Outdoor piping wrapped with electric heater tape. Ye s No
9. Is system equipped with head pressure control?
(Required for entering condenser water below 68 F (20 C).) Ye s No
C. UNIT START-UP
1. All liquid line service valves are open. Ye s No
2. All discharge service valves are open. Yes No
3. All suction service valves are open. Ye s No
4. Economizer service valves open. Yes No
5. Oil service valves open. Yes No
6. Leak check unit. Locate, repair and report any refrigerant leaks. Yes No
7. Voltage at terminal block is within unit nameplate range. Ye s No
Check voltage imbalance: A-B______ A-C______B-C______
Average voltage = __________ (A-B + A-C + B-C)/3
Maximum deviation from average voltage = _______
Voltage imbalance = ______% (max. deviation / average voltage) X 100
Is voltage imbalance less than 2%. Ye s No
(DO NOT start chiller if voltage imbalance is greater than 2%.
Contact local utility for assistance.)
8. Verify evaporator flow rate
Pressure entering evaporator _____ psig
Pressure leaving evaporator _____ psig
Evaporator pressure drop _____ psig
psig x 2.31 ft./psi = _____ ft of water
kpa x 0.334 m/psi = _____ mm of water
Evaporator flow rate _____ gpm (l/s) (See Evaporator Pressure Drop Curve)
9. Verify condenser flow rate
Pressure entering condenser _____ psig
Pressure leaving condenser _____ psig
Condenser pressure drop _____ psig
psig x 2.31 ft./psi = _____ ft of water
kpa x 0.334 m/psi = _____ mm of water
Condenser flow rate _____ gpm (l/s) (See Condenser Pressure Drop Curve)
Start and Operate Machine
1. Complete component test utilizing Quick Test Mode
2. Check refrigerant and oil charge. Record charge information.
3. Record compressor motor current.
4. Record operating data.
5. Provide operating instructions to owner’s personnel.
Circuit A Circuit B
Refrigerant Charge
Additional charge required __________ ___________
Oil Charge
Additional charge required __________ ___________