McQuay M4LC Especificaciones descargar pdf (Pagina 17)

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

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McQuay M4LC Especificaciones Pagina 17