Carrier 30XW150-400 Condenser Water System Check, Unit START-UP, Start and Operate Machine

Condenser Water System Check

1.All condenser water valves are open.

2.All piping is connected properly.

3.All air has been purged from the system.

4.Condenser water pump is operating with the correct rotation.

5.Condenser water pump starter interlocked with chiller.

6.Condenser water flow switch operational.

7.Inlet piping to condenser includes a 20 mesh strainer within 10 ft.

8.Outdoor piping wrapped with electric heater tape.

9.Is system equipped with head pressure control?

(Required for entering condenser water below 68 F (20 C).)

C. UNIT START-UP

1.All liquid line service valves are open.

2.All discharge service valves are open.

3.All suction service valves are open.

4.Economizer service valves open.

5.Oil service valves open.

6.Leak check unit. Locate, repair and report any refrigerant leaks.

7.Voltage at terminal block is within unit nameplate range.

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%.

(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	__________	___________

CL-2

 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No
 Yes	 No

 Yes  No

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - CUT ALONG DOTTED LINECUT ALONG DOTTED LINE