Troubleshooting
MCAC-UTSM-2008-11
120
Outdoor Units
E5:
Temperature sensor error of water pump
E6:
Outdoor unit malfunction
E5
Whether the resistance of the temp. sensor is 10K
Replace temp. sensor
No
Yes
Replace the PCB
E6
Whether the outdoor unit is power on
Measure whether the voltage of the communication line
’
s red and black end
between the indoor and outdoor unit is +5V
Replace the PCB
Replace the outdoor unit
board
No
Yes
Check the indoor unit main board CN5 or replace the main control board
Yes
Check when the power is on
No
Yes
Summary of Contents for MCA-12HRN1
Page 2: ......
Page 13: ...MCAC UTSM 2008 11 Dimensions Indoor Units 11 3 Dimensions 4 Service Space...
Page 14: ...Wiring Diagram MCAC UTSM 2008 11 12 Indoor Units 5 Wiring Diagram...
Page 21: ...MCAC UTSM 2008 11 Field Wiring Indoor Units 19 13 Field Wiring MCA 12HRN1...
Page 22: ...Field Wiring MCAC UTSM 2008 11 20 Indoor Units MCA 18HRN1...
Page 32: ...Wiring Diagrams MCAC UTSM 2008 11 30 Indoor Units 5 2 MCC 30HRN1 R MCC 36HRN1 R MCC 48HRN1 R...
Page 41: ...MCAC UTSM 2008 11 Exploded View Indoor Units 39 10 Exploded View 10 1 MCC 24HRN1 33...
Page 43: ...MCAC UTSM 2008 11 Exploded View Indoor Units 41 10 2 MCC 30HRN1...
Page 45: ...MCAC UTSM 2008 11 Exploded View Indoor Units 43 10 3 MCC 30HRN1 R...
Page 47: ...MCAC UTSM 2008 11 Exploded View Indoor Units 45 10 4 MCC 36HRN1...
Page 49: ...MCAC UTSM 2008 11 Exploded View Indoor Units 47 10 5 MCC 36HRN1 R...
Page 54: ...Field Wiring MCAC UTSM 2008 11 52 Indoor Units 13 Field Wiring...
Page 62: ...Service Space MCAC UTSM 2008 11 60 Indoor Units 4 Service Space...
Page 63: ...MCAC UTSM 2008 11 Wiring Diagrams Indoor Units 61 5 Wiring Diagrams 5 1 MUB 12HRN1 MUB 18HRN1...
Page 65: ...MCAC UTSM 2008 11 Wiring Diagrams Indoor Units 63 5 3 MUB 30HRN1 3 phase MUB 36HRN1 3 phase...
Page 66: ...Wiring Diagrams MCAC UTSM 2008 11 64 Indoor Units 5 3 MUB 48HRN1 R MUB 60HRN1 R...
Page 87: ...MCAC UTSM 2008 11 Field Wiring Indoor Units 85 13 Field Wiring MUB 12HRN1 MUB 18HRN1...
Page 88: ...Field Wiring MCAC UTSM 2008 11 86 Indoor Units MUB 24HRN1 MUB 30HRN1 MUB 36HRN1 1 phase...
Page 96: ...Dimensions MCAC UTSM 2008 11 94 Outdoor Units 2 Dimensions 2 1 MOU 12HN1...
Page 97: ...MCAC UTSM 2008 11 Dimensions Outdoor Units 95 2 2 MOUA 18HN1...
Page 98: ...Dimensions MCAC UTSM 2008 11 96 Outdoor Units 2 3 MOUA 24HN1...
Page 99: ...MCAC UTSM 2008 11 Dimensions Outdoor Units 97 2 4 MOU 30HN1 MOU 30HN1 R MOU 36HN1 MOU 36HN1 R...
Page 100: ...Dimensions MCAC UTSM 2008 11 98 Outdoor Units 2 5 MOUA 48HN1 R MOUA 60HN1 R...
Page 105: ...MCAC UTSM 2008 11 Wiring Diagrams Outdoor Units 103 5 Wiring Diagrams 5 1 MOU 12HN1...
Page 106: ...Wiring Diagrams MCAC UTSM 2008 11 104 Outdoor Units 5 2 MOUA 18HN1...
Page 107: ...MCAC UTSM 2008 11 Wiring Diagrams Outdoor Units 105 5 3 MOUA 24HN1...
Page 108: ...Wiring Diagrams MCAC UTSM 2008 11 106 Outdoor Units 5 4 MOU 30HN1 MOU 36HN1...
Page 109: ...MCAC UTSM 2008 11 Wiring Diagrams Outdoor Units 107 5 5 MOU 30HN1 R MOU 36HN1 R...
Page 110: ...Wiring Diagrams MCAC UTSM 2008 11 108 Outdoor Units 5 6 MOUA 48HN1 R MOUA 60HN1 R...
Page 128: ......
Page 138: ...Control MCAC UTSM 2008 11 136 Control Part 5 Control 1 Remote Controller 137...