(5) Vacuuming and charging
•
The precharged outdoor unit does not need any vacuuming or charging. However once it is connected,
the connecting pipe line and the indoor need to be vacuumed before releasing the R22/R407C from the
outdoor unit.
1) Open the service port core cap.
2) Connect pressure gauge to the service port.
3) Connect the line to vacuum pump. Open the charging manifold valve and turn the pump on. Vacuum
to –0.1 MPa (-760mmHg) or lower. (Evacuation time varies by the pump but averagely in 1 hour).
CAUTION FOR R407C
R407C must be charged as liquid. Usually R407C cylinder is equipped with a dip-pipe for liquid withdrawal. If
there is no dip-pipe, the cylinder should be inverted so as to withdraw liquid R407C from the valve.
CAUTION FOR R407C
Do not top-up when servicing leak, as this will reduce the unit performance. Vacuum the unit thoroughly and
then charge the unit with fresh R407C according to the amount recommended in the specification.
Page 72
Содержание MCM 020 D
Страница 21: ...Refrigerant Circuit MODEL MCM020D MLC M4LC020B MODEL MCM025D MLC M4LC025B MCM030D M4LC030B Page 20...
Страница 23: ...MODEL MCM020DR MLC M4LC020BR MODEL MCM025DR MLC M4LC025BR MCM030DR MLC030BR Page 22...
Страница 41: ...MODEL MLC M4LC061 C CR Page 40...
Страница 42: ...Wiring Diagrams COOLING ONLY INDOOR UNIT MODEL MCM020 025D OUTDOOR UNIT MODEL MLC M4LC020 025B Page 41...
Страница 43: ...INDOOR UNIT MODEL MCM030D OUTDOOR UNIT MODEL MLC030B Page 42...
Страница 44: ...INDOOR UNIT MODEL MCM030D OUTDOOR UNIT MODEL MLC M4LC030C Page 43...
Страница 45: ...INDOOR UNIT MODEL MCM040D OUTDOOR UNIT MODEL MLC035C Page 44...
Страница 46: ...INDOOR UNIT MODEL MCM040 050D OUTDOOR UNIT MODEL MLC M4LC040 050C Page 45...
Страница 47: ...INDOOR UNIT MODEL MCM061 062C OUTDOOR UNIT MODEL M4LC060C Page 46...
Страница 48: ...INDOOR UNIT MODEL MCM061 062C OUTDOOR UNIT MODEL MLC M4LC061C Page 47...
Страница 49: ...HEAT PUMP INDOOR UNIT MODEL MCM020 025DR OUTDOOR UNIT MODEL MLC M4LC020 025BR Page 48...
Страница 50: ...INDOOR UNIT MODEL MCM030DR OUTDOOR UNIT MODEL MLC030BR Page 49...
Страница 51: ...INDOOR UNIT MODEL MCM030DR OUTDOOR UNIT MODEL MLC M4LC030CR Page 50...
Страница 52: ...INDOOR UNIT MODEL MCM040DR OUTDOOR UNIT MODEL MLC035CR Page 51...
Страница 53: ...INDOOR UNIT MODEL MCM040 050DR OUTDOOR UNIT MODEL MLC M4LC040 050CR Page 52...
Страница 54: ...INDOOR UNIT MODEL MCM061 062CR OUTDOOR UNIT MODEL MLC M4LC061CR Page 53...
Страница 55: ...INDOOR UNIT MODEL MCM061 062CR OUTDOOR UNIT MODEL MLC M4LC060CR Page 54...
Страница 61: ...LOW AMBIENT UNIT OPTIONAL OUTDOOR UNIT MODEL MLC010B 015B 50HZ OUTDOOR UNIT MODEL MLC020B 025B 50HZ Page 60...
Страница 63: ...SINGLE PHASE FOR 4HP OUDOOT UNIT MODEL MLC M4LC040C COOLING ONLY MODEL MLC M4LC040CR HEATPUMP Page 62...
Страница 68: ...MCM061 062C Figure C Provide the installation space as shown in Figure D MCM D MCM061 062C Figure D Page 67...
Страница 94: ...2004 McQuay International 1 800 432 1342 www mcquay com ISO 9002 REGISTERED...