PIA_982030_AIR_HAWK_518_in_EN | www.ochsner.com 37
Electrical connection
Communication
Abbrevia-
tions
Con-
ductor
colour
Connections
Description
Smart grid
-
-
Smart grid
BUS
-
-
KNX connection
Room temperature
sensor
OCHSNER
BUS
-
-
Modbus connection
OCHSNER peripher-
al devices (EnOcean
gateway)
OTS BUS
Red
24 V
Peripheral bus/OTS
Connection between
indoor and outdoor
unit / Connection be-
tween indoor unit and
auxiliary module
Black
GND
White
B-
Yellow
A+
Power supply
Abbrevia-
tions
Description
OTS
Control circuit
ZEZ
Supply to electric auxiliary heater
VD
Main power circuit
Compressor and fan supply
WQA
Power supply, heat source system
ZSM
Auxiliary module supply
Note
When connecting the power supply, take into ac-
count the schematic diagram of the connecting
cables. (See page 24, Preparing the electrical
Summary of Contents for AIR HAWK 518
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Page 9: ...00_400_200_202_01_split_Funktionsweise EN www ochsner com 9 How split systems work...
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Page 45: ...00_400_01_01 EN www ochsner com 45...
Page 55: ...PIA_982030_AIR_HAWK_518_td_EN www ochsner com 55...
Page 57: ...PIA_982030_AIR_HAWK_518_EN05 1 www ochsner com 57...
Page 58: ...Notes...
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