Service manual
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10.4 Protection
10.4.1 3 minutes delay at restart for compressor.
10.4.2 Sensor protection at open circuit and breaking disconnection
10.4.3 Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High
Fan+300RPM)or too low(lower than 400RPM), the unit stops and LED displays failure information
and can’t returns to normal operation automatically.
10.4.4 Cross Zero signal error warning. If there is no Cross Zero signals in 4 minutes, the unit stops
and LED displays failure information and can’t returns to normal operation automatically.
10.4.5 The current protection of the compressor
10.5 Fan only mode
Fan speed is high/mid/low/ Auto
10.6 Cooling mode
The 4-way valve is closed at cooling mode.
The action of the compressor and the outdoor fan:(T=indoor temperature)
Auto fan at cooling mode:
Anti-freezing control to indoor evaporator at cooling mode ( T: evaporator temp. )
Summary of Contents for MSG-24CRN2
Page 1: ...MSG 24CRN2 MSG 24HRN2 MSG 30CRN2 MSG 30HRN2...
Page 2: ......
Page 13: ...Service manual 9 5 Refrigerant cycle diagram Cooling only Heat pump mode...
Page 15: ...Service manual 11 7 Schematic diagram and Wiring diagram 7 1 Schematic diagram...
Page 16: ...Service manual 12 7 2 Wiring diagram 7 2 1 Cooling mode MSG 24CR MSG 30CR...
Page 17: ...Service manual 13 7 2 2 Heating mode MSG 24HR MSG 30HR A1 A2...
Page 18: ...Service manual 14 7 2 3 Cooling mode 3 Ph MSG 30CR 3ph...
Page 19: ...Service manual 15 7 2 4 Heating mode 3 Ph MSG 30HR 3ph 1 7 3 4 5 6 2...
