Haier CA0130EAND [31/42] Commissioning operation and maintenance

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8. Commissioning, Operation and Maintenance

8.1 Unit commissioning

The steps of:

1) The wired remote operating power, if found fault code display unit, rst eliminate the fault, conrm trouble-free

unit, And then start the unit.

2) Test run for 30 minutes, out of the water temperature is stable, adjust the water ow to the nominal value, to

ensure the normal operation of the unit.

3) After the unit is running, running current inspection unit, operating pressure, pressure water system, water ow,

1) Because the host can start and stop the pump control, when the water system ushing, the pump can not be

controlled by the host Run.

2) Water system is not sufciently unprecedented row, can not open the unit.

3) The ow switch must be installed correctly, or it may occur without water failure.

4) After commissioning the unit shut down intervals of less than four minutes, shall be manually turned on again.

5) In the regular season operation after stopping the operation of the unit, do not turn off the power, otherwise the

compressor can not get heating, It may cause damage to the compressor.

6) When the compressor is stopped for long periods of operation and cut off the power, remember to re-operate

12 hours before the crew should energize, to Preheating the compressor.

7) Commissioning and maintenance may refer to the project schedule, and prepare documented.

2) The power unit will preheat compressor lubricants for more than 8 hours;

3) Open the terminal equipment and check its functioning properly;

4) Open system circulating pump, check the operation direction, check the water system is normal;

5) Check the expansion tank of water, turn on the system water circulation passage of the exhaust valve, exhaust

air despite the Tao;

6) Before turning the unit must be inside the various manual valves fully open.

7) Make sure the power cord is rmly connected, no phase, out of phase problems.

After completion of the above work, until the water temperature reached the requirements, you can start the

terminal equipment into normal cooling operation.

First, before starting preparations

3. The air piping system must be completely excluded. After Luke give water pipes and exhaust air from the empty

place, to be almost ruled out air, and then open the pump emptying, with or without air pump operation can

listen to the voice, if it is a burst of buzz, or pump outlet pressure gauge pointer swing violently, then the system

is still air, we need to stop the pump repeatedly ruled out open air. Remember: If a lot of air, not

a long time water.