Overall Checking; Standard Operating Condition - Acson international IM-CCC-0501-ACSON Manual De Instalación

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Manifold Gauge will show cylinder pressure rather than suction pressure if the cylinder valve and Manifold

valve "A" are both open.

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.

Ensure the following, in particular:-

1) The unit is mounted solidly and rigid in position.

2) Piping and connections are leak proof after charging.

3) Proper wiring has been done.

Drainage check:- Pour some water into left side of drain

pan (drainage are in right side of unit).

• Test run:

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

leakage test.

Cooling Only Unit

Temperature

Minimum indoor

temperature

Maximum indoor

temperature

Minimum outdoor

temperature

Maximum outdoor

temperature

Ts: Dry bulb temperature.

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Disconnect from the main power supply before servicing the air conditioner unit.

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DO NOT pull out the power cord when the power is ON. This may cause serious electrical shocks which may

result in fire hazards.

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