15
Avoid prolong exposure of an opened compressor, or the internal part of refrigerant piping to
moist air. The POE oil in the compressor and piping can absorb moisture from air.
(7) OVERALL CHECKING
• 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 drain pan.
• Test run
1) Conduct a test run after water drainage test and gas leakage test.
2) Watch out for the following :
a) Is the electric plug firmly inserted into the socket?
b) Is there any abnormal sound from unit?
c) Is there any abnormal vibrations with regard to unit itself or piping?
d) Is there smooth drainage of water?
• Check that :
1) Condenser fan is running, with warm air blowing off the condensing unit.
2) Evaporator blower is running and discharge cool air.
3) Suction (low side) pressure as recommended.
4) The remote controller incorporate a 3 minute delay in the circuit. Thus, it requires about 3
minutes before the condensing unit can start up.
(8) STANDARD OPERATING CONDITION
COOLING ONLY UNIT
Temperature Ts °C
Th °C
Minimum indoor temperature
19.4 13.9
Maximum indoor temperature
26.7 19.4
Minimum outdoor temperature
19.4 13.9
Maximum outdoor temperature
46.0 24.0
HEAT PUMP UNIT
Temperature Ts °C
Th °C
Minimum indoor temperature
10.0 -
Maximum indoor temperature
26.7 -
Minimum outdoor temperature
-8.0 -9.0
Maximum outdoor temperature
24.0 18.0
Ts : Dry bulb temperature
Th : Wet bulb temperature
Caution
To Next Page
Loading...
Need help?
General
