McQuay MWM Specifications download pdf (Page 84)

4) After evacuation, unscrew the spindle (diagram B) for the gas to run to indoor unit.

5) Decision by low side pressure. Turn compressor on for 10 or 15 min.

Within the value - refrigerant cycle normal.

Lower than value - refrigerant cycle has some leaks - check, amend and top up is necessary.

Extremely low ( ≅ zero) - needs evacuation and charge.

Additional Charge

• The refrigerant gas is charged in the outdoor unit and, if the piping length is 7.6m, additional charge of

the refrigerant after vacuuming is not necessary.

• When the piping length is more than 7.6m, please use the table below :

Additional charge in gram.

STANDARD CONDITION HEAVY LOAD CONDITION

Indoor 27°C / Outdoor 35°C Indoor 32°C / Outdoor 43°C

kg/cm

psig kg/cm

psig

MWM 010F/FR 5.2 ~ 6.0 74.0 ~ 85.0 5.7 ~ 6.4 81.0 ~ 92.0

MWM 015F/FR 4.6 ~ 5.6 65.4 ~ 79.6 5.2 ~ 6.3 74.0 ~ 89.6

MWM 020F/FR 4.6 ~ 5.6 65.4 ~ 79.6 5.2 ~ 6.3 74.0 ~ 89.6

MWM 025F/FR 4.0 ~ 4.8 56.9 ~ 68.3 4.5 ~ 5.0 64.0 ~ 71.1

MWM 030F/FR 4.0 ~ 4.8 56.9 ~ 68.3 4.5 ~ 5.0 64.0 ~ 71.1

MODEL 10m 12m 15m 25m 35m

COOLING ONLY

MWM 010F / 015F 35 65 - - -

MWM 020F 35 65 110 - -

MWM 025F 90 165 280 - -

MWM 030F 90 165 280 650 1030

HEATPUMP

MWM 010FR / 015FR 50 90 - - -

MWM 020FR 60 110 185 - -

MWM 025FR 120 220 370 - -

MWM 030FR 120 220 370 870 1370

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 107 108

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McQuay MWM Specifications Page 84