Test Operation - Cooper & Hunter Alpha Serie Bedienungsanleitung

5. After the evacuation is complete, fully close the handle Lo of the manifold valve
and stop the operation of the vacuum pump. Make evacuation for 15 minutes or more
and check that the compound meter indicates -76cmHg (1x105Pa).
6. Turn the stem of the packed valve B about 45° counter clockwise for 6-7 seconds
after the gas coming out, and then tighten the flare nut again. Make sure the
pressure display in the pressure indicator is a little higher than the atmosphere
pressure.
7. Remove the charge hose from the Low pressure charge hose.
8. Fully open the packed valve stems B and A.
9. Securely tighten the cap of the packed valve.

9. TEST OPERATION

 The test operation must be carried out after the entire installation has been completed.
 Please confirm the following points before the test operation:
 The indoor unit and outdoor unit are installed properly.
 Tubing and wiring are correctly completed.
 The refrigerant pipe system is leakage-checked.
 The drainage is unimpeded.
 The heating insulation works well.
 The ground wiring is connected correctly.
 The length of the tubing and the added stow capacity of the refrigerant have been recorded.
 The power voltage fits the rated voltage of the air conditioner.
 There is no obstacle at the outlet and inlet of the outdoor and indoor units.
 The gas-side and liquid-side stop valves are both opened.
 The air conditioner is pre-heated by turning on the power.
TEST OPERATION
■ Set the air conditioner under the mode of "COOLING" with the remote controller, and check the following points. If there is
any malfunction, please resolve it according to the chapter "TROUBLESHOOTING" of this Manual".
1) The indoor unit
a) Whether the switch on the remote controller works well.
b) Whether the buttons on the remote controller works well.
c) Whether the air flow louver moves normally.
d) Whether the room temperature is adjusted well.
e) Whether the indicator lights normally.
f) Whether the temporary buttons works well.
g) Whether the drainage is normal.
h) Whether there is vibration or abnormal noise during operation.
i) Whether the air conditioner heats well.
2) The outdoor unit
a) Whether there is vibration or abnormal noise during operation.
b) Whether any of the refrigerant is leaked.
A protection feature prevents the air conditioner from being activated for approximately 3 minutes when it
!
CAUTION
is restarted immediately after shut off.
* Cooper & Hunter is constantly working to improve their products, so the information in this manual is subj e ct to change without
prior notice.
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