DM16-01.01.25en
Floor Standing MFM
27
Service manual
2. Air purging by the refrigerant
Procedure:
1). Confirm that both the 2-way and 3-way valves are set to the closed position.
2). Connect the charge set and a charging cylinder to the service port of the 3-way valve
Leave the valve on the charging cylinder closed.
3). Air purging.
Open the valves on the charging cylinder and the charge set. Purge the air by loosening the
flare nut on the 2-way valve approximately 45’ for 3 seconds then closing it for 1 minute; repeat 3
times.
After purging the air, use a torque wrench to tighten the flare nut on the 2-way valve.
4). Check the gas leakage
Check the flare connections for gas leakage.
5). Discharge the refrigerant.
Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut
on the 2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa.
6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to
the open position
Be sure to use a hexagonal wrench to operate the valve stems.
7). Mount the valve stems nuts and the service port cap
Be sure to use a torque wrench to tighten the service port cap to a torque 18N.m.
Be sure to check the gas leakage.
Содержание MFM-24ARN1-Q
Страница 12: ...Floor Standing MFM DM16 01 01 25en Service manual 12 5 2 MFM 48ARN1 R Indoor unit Outdoor unit MOU 48HN1 RB6W...
Страница 13: ...DM16 01 01 25en Floor Standing MFM 13 Service manual 5 3 MFM 60ARN1 R Indoor unit Outdoor unit MOUL 60HN1 R...
Страница 34: ...Floor Standing MFM DM16 01 01 25en Service manual 34 7 2 Control Panel Control Buttons and Functions...
Страница 50: ...Floor Standing MFM DM16 01 01 25en Service manual 50 10 2 9 Overload of current 1...
Страница 52: ...Floor Standing MFM DM16 01 01 25en Service manual 52 10 2 11 Refrigerant Leakage Detection...
Страница 53: ...DM16 01 01 25en Floor Standing MFM 53 Service manual 10 2 12 Temperature protection of compressor discharge...