McQuay MLCV Especificaciones Pagina 18
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19
Operating State and Fault Table
Cooling / Heatpump Model (Universal Board)
Phase Sequencer
The unit with Scroll Compressor can only rotate in one direction. For this reason, a protective device (phase
sequencer) is fitted to prevent incorrect wiring of the electrical phases. When the three phases are not connected
correctly, the phase sequencer operates, and the unit will not start. This devise is located in the control box of
the outdoor unit.
The following table shows the LED indicator light for phase sequencer under normal operation and fault conditions.
LED_P
(Red)
LED_R
(Yellow)
LED_S
(Yellow)
LED_T
(Yellow)
Normal Operation On - - -
Reverse Phase Blink Blink Blink Blink
S & T Phase Missing Blink - Blink Blink
T Phase Missing Blink - - Blink
S Phase Missing Blink - Blink -
R Phase Missing - - - -
Overload Blink - - -
Sensor Missing Blink On On On
Notes: 1. “-” means LED off.
2. When R phase missing, no LED or buzzer will indicate the error, but relay 71 (Common) and 81 (NO)
will cut off.
3. The unit will check the discharge sensor availability only during power up.
4. All errors can only recover through manually reset.
Error Code at 7 Segment Display Operation / Faulty Indication
Blink E1 Room sensor contact loose / short
Blink E2 Indoor coil sensor contact loose
Blink E3 Outdoor coil sensor contact loose
Blink E4 Compressor overload / Indoor coil sensor short /
Outdoor coil sensor short
Blink E5 Gas leak
Blink E6 N/A
Blink Heat LED Outdoor defrost (for Heatpump only)
- Ceiling Concealed 1
- Split Systems 1
- Table of Contents 2
- Nomenclature 3
- Features 7
- Caution : 8
- Model : MCC 028C – MLC 028C 10
- MCC 030C – MLC 028C 10
- MCC 060C – MLC 061C 10
- M5CC 020CR – M5LC 025CR 13
- M5CC 025CR - M5LC 025CR 13
- Controllers 17
- Phase Sequencer 18
- Caution 19
- All Model A B C D 20
- Installation Clearance 20
- (3) Refrigerant Piping 21
- 4) Wiring 22
- (5) Vacuuming and Charging 22
- (6) Additional Charge 23
- Sound Data 26
- Sound Pressure 27
- NC Curves 28
- 0C/CR NC Curves 29
- 5C/CR NC Curves 29
- MCC028C/CR NC Curves 30
- MCC030C/CR NC Curves 30
- MCC038C/CR NC Curves 31
- MCC040C/CR NC Curves 31
- Octave-band frequency (Hz) 32
- Selection Process 33
- FAN PERFORMANCE CURVE 34
- MCC 015C/CR 34
- (High Static Motor) 34
- MCC 020C/CR 35
- MCC 025C/CR 36
- MCC 028C/CR 37
- MCC 030C/CR 38
- MCC 038C/CR 39
- MCC 040C/CR 40
- MCC 050C/CR 41
- MCC 060C/CR 42
- MCC 010C/CR 43
- (Low Static Motor) 43
- Components Data (R410A) 61
- Safety Devices 71
- Performance Data 78
- Total capacity, TC 81
- R410A Models 82
- (Cooling only) 82
- Model : M5CC 038C / M5LC 040C 85
- Model : M5CC 050C / M5LC 050C 86
- (Heatpump) 87
- Cooling Mode 87
- Heating Mode 87
- Heating Mode 88
- Heating Mode 89
- Dimensional Data 98
- Outdoor Unit 100
- Model : MLC 018C/CR 101
- M5LC 035 / 040 / 050C/CR 102
- Model : MLC / M5LC 061C/CR 102
- Wiring Diagrams 109
- Indoor Unit 110
- Model : MCC 015C 110
- Model : MLC 015C 110
- Model : MCC / M5CC 020 / 025C 111
- Model : MLC/ M5LC 028C 112
- Model : MCC 038 / 040C 115
- Model : M5CC 050 / 060C 117
- Model : M5LC 050 / 061C 117
- Model : MCC 060C 118
- Model : MLC 061C 118
- Heatpump 119
- Model : MCC 015CR 120
- Model : MLC 015CR 120
- Model : MLC / M5LC 028CR 122
- Model : MCC 028 / 030CR 123
- Model : MLC 030CR (1 Phase) 123
- Model : MLC 030CR (3 Phase) 124
- Model : M5CC 028CR 125
- Model : M5LC 035CR (1 Phase) 125
- Model M5CC 028CR 126
- Model : M5LC 035CR (3 Phase) 126
- Model : MCC 038 / 040CR 127
- Model : M5CC 038CR 128
- Model : M5LC 040CR 128
- Model : MCC 038 / 040 / 050CR 129
- Model : M5CC 050 / 060CR 130
- Model : M5LC 050 / 061CR 130
- Model : MCC 060CR 131
- Model : MLC 061CR 131
- 3 Phase / 50 Hz / 380 ~ 415V 132
- Servicing and Maintenance 136
- For MLC Outdoor Models 137
- Troubleshooting 138
- Diagnostic Guideliens 139
- 14°C to 20°C. * 142
- Exploded View and Parts List 143
- Model : MCC / M5CC 028C/CR 145
- Model : MCC 030C/CR 146
- Model : MCC / M5CC 038C/CR 147
- Model : MCC 040C/CR 148
- Model : MCC / M5CC 050C/CR 149
- Model : MCC / M5CC 060C/CR 150
- Model : MLC / M5LC 010 / 015C 151
- Model : MLC 030 / 040C/CR 157
- Model : MLC / M5LC 035C/CR 158
- Model : M5LC 040C/CR 159
- Model : MLC 050 / 061C/CR 160
- Model : M5LC 050 / 061C/CR 161
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