Lennox AIRCOOLAIR KNCK 24E - Page 22

21
Power supply
Common Fan Heat/ Cool
(**)
E. HEATER Compressor
A BCDEF GH
Power supply
Common Fan Heat/ Cool
(**)
E. HEATER Compressor
A BCDEF GH
*
*
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 6966 68
70 7371 7675
C FM1/
RFM1
FM2/
RFM2
FM1 EH1
Dirty
filter
alarm
CM1 FM2
CM2
EH2
CM1
CM2
Smoke
alarm
60 61 63 65 67 6966 68
64
62
70
7371 7675