Emerson Liebert ICOM-DO Installation Manual download pdf (Page 54)

Startup

Checks to Perform after Startup

Once the system is operating under load, check the various components, as follows:

1. Verify that the fans are operating properly.

2. Ensure that the temperature and relative humidity are being controlled, and that the humidifier

(optional) and heating steps (optional) operate when required.

3. Ensure that the compressor operates when required.

4. Ensure that the fan operation controller on the external condenser/drycooler (if fitted) is

calibrated correctly, and that it controls the fan operation.

5. Record all of the following on the warranty inspection form:

a. All component voltages and current draws

b. All air / water temperatures indoor and outdoor

c. All refrigerant and water / glycol pressures,

d. All levels of refrigerant and oil in sight glasses

e. Record refrigerant pressure switch settings and operating pressures

f. Record superheat and sub-cooling.

10.2 Automatic Restart

If desired, the unit will automatically restart on the return of power after a supply interruption (see

the Liebert iCOM user manual, SL-18835, available at the Liebert Web site: www.liebert.com).

To avoid an automatic cold restart of the compressor if a power interruption of several hours is

expected, stop the unit before the blackout. After power returns, allow the compressor to preheat

before restarting the unit.

Figure 43 Refrigerant line components

Liquid Receiver Valve

Filter

Dryer

Inlet

Schrader

Valve

Filter

Dryer

Sight Glass

Solenoid Valve

Thermostatic

expansion

valve

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Emerson Liebert ICOM-DO Installation Manual Page 54