21
Power
supply
Common
Fan
Heat/ Cool
(**)
E. HEA
TER
Compressor
A B C D E F G H
Power
supply
Common
Fan
Heat/ Cool
(**)
E. HEA
TER
Compressor
A B C D E F G H
*
*
REMOTE
ON/OFF
ELECTRICAL BOX OF THE UNIT
ELECTRICAL BOX OF THE UNIT
When unit switches off, the system will show CM1 and CM2
failure signal.
* Remove wire, if ON/OFF remote is used.
Compressor alarm may indicate thermic CM, CFM, High pressure,
Low pressure.
STANDARD VERSION UNIT MULTI-SPLIT SYSTEM
VFC VERSION UNIT MULTI-SPLIT SYSTEM
REMOTE
ON/OFF
Alarm and
failure signals
Unit's functioning mode signals
Alarm and
failure signals
Unit's functioning mode signals
Optional
Optional
Thermostat connection
(**) Heat
pump
C: Common
FM: Indoor fan
RFM: Return fan motor
CM1: Compressor 1
CM2: Compressor 2
90 91 92 93
92
93
T +
T
-
94 95
Ambient thermostat
signals or digital
inputs BMS system
Ambient thermostat
signals or digital
inputs BMS system
EH1: Electrical heater 1
EH2: Electrical heater 2
2.6.- ELECTRICAL CONNECTIONS
2.- INSTALLATION
ELECTRICAL CONNECTION " REMOTE SIGNALS" MULTI-SPLIT SYSTEMS
T +
T
-
C FM1/
RFM1
FM2/
RFM2
FM1
EH1
Dirty
filter
alarm
CM1
FM2
CM2
EH2
Smoke
alarm
60 61
63
65
67
69
66
68
70
73
71
76
75
C FM1/
RFM1
FM2/
RFM2
FM1
EH1
Dirty
filter
alarm
CM1
FM2
CM2
EH2
CM1
CM2
Smoke
alarm
60 61
63
65
67
69
66
68
64
62
70
73
71
76
75