Indicator Lights; Overall Checking - Acson IM-CKB-0501- B-Series Bedienungsanleitung

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2. Charging procedures – Three phase compressors

The fundamental procedure is the same as for single phase models but the compressor can run in the wrong direction on

starting. If this happens reverse any two phases and start again. Short term reverse rotation will not damage the compressor.

All Specter compressors (Model: ZR90 to ZR19M) have internal discharge temperature protectors which are very effective

in preventing dangerously high discharge temperatures during charging. The protection module will trip and lock the

compressor out for 30 minutes. It is not normally necessary to wait 30 minutes for the module to reset. When the compressor

has cooled down the module can be reset by breaking the power supply to the control circuit. Very often the serviceman

does not understand why the module tripped and uses a jumper wire to bypass it. He continues to charge the system and

removes the jumper when charging is complete. The compressor may or may not run with the protector back in the circuit

but it is certain that the compressor has been damaged and premature failure is inevitable.

Remote Control

When there is infrared remote control operating signal, the signal receiver on indoor unit will made a <beep> for signal

acceptance confirmation.

FAULTY INDICATION

Room/outdoor coil sensor

missing

Indoor coil sensor missing

Compressor overload

Gas leak

Pump fault

Outdoor defrost

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Ensure that:

1) The unit has been mounted solidly and rigid in position.

2) Piping and connections are leak proof after charging.

3) Proper wiring has been installed.

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Drainage check:

– Pour some water into the main drain pipe from the flexible drain hose.

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Test run:

1) Conduct a test run after water drainage test and gas leakage test.

2) Check the following items:

a. Is the electric plug firmly inserted into the socket ?

b. Is there any abnormal sound from the unit ?

c. Is there any abnormal vibration on the unit itself or piping ?

d. Is the drainage of water smooth ?

•

Confirm that:

1) Condenser fan is running, with warm air blowing off the condensing unit.

2) Evaporator blower is running and discharge cool air.

3) The remote control incorporate a 3 minute delay in the circuit. Thus, it requires about 3 minutes before the outdoor

condensing unit can start up.

There are many ways of charging liquid in a "controlled manner" into the suction

side:-

1. Use valve A on the manifold gauge set

2. Use the valve on the refrigerant cylinder

3. Charge through a Shredder valve

4. Use a hose with a Shredder valve depressor

5. Charge into the suction side at some distance from the compressor

6. All of the above