10.5 Wiring diagram
Wiring diagram key
AA02 Integral control unit
AA04 Inverter
AA06 Programming unit
BF01 Heating circuit flow rate sensor
BL01 Condensate float switch
BM03 Extract air humidity sensor
BP01 High pressure sensor
BP03 Low pressure sensor
BP05 High pressure (HP) pressure switch
BP10 Heating circuit (water) pressure sensor
BP11 Air differential pressure sensor
BP12 Air differential pressure sensor 2
BP16 Signal anode pressure switch
BT01 Heating flow temperature sensor - PT 1000
BT02 Heating return temperature sensor - PT 1000
BT11 Temperature sensor, flow - HP - Pt1000
BT12 Temperature sensor, return - HP - Pt1000
BT20 DHW cylinder temperature sensor
BT21 DHW cylinder top temperature sensor (optional)
BT22 DHW cylinder integral temperature sensor (optional)
BT27 2nd DHW cylinder DHW sensor (optional)
BT29 Solar collector temperature sensor
BT30 Outside temperature sensor
BT35 Extract air temperature sensor
BT40 Temperature sensor, hot gas - PT 1000
BT42 Temperature sensor, condenser (frost protection)
BT43 Temperature sensor, evaporator discharge
BT44 Temperature sensor, defrost end (evaporator inlet)
BT45 Evaporator discharge temperature sensor - PT 1000
BT46 Compressor intake temperature sensor - PT 1000
BT48 Oil sump temperature sensor
BT51 Compressor temperature limiter
BT55 High limit safety cut-out for MFG
BT56 Temperature controller, booster heater 2kW
(optional)
BT57 High limit safety cut-out for 2kW booster heater
(optional)
EB01 Booster heater MFG
EB02 Booster heater cylinder BGC 2kW (optional)
EB03 Oil sump heater
FC01 Inverter fuse
FC07 Condensate pump fine-wire fuse
KF01 Compressor contactor
KF27 Passive cooling contactor
MA01 Compressor motor
MA04 Motor, electronic expansion valve, evaporator
MA06 Motor, electronic expansion valve, heat pipe
MA07 Diverter valve, defrost
MA10 Circulation pump motor
MA13 Motor, condensate pump, bottom plate
MA15* Diverter valve motor (heating/DHW/alternative)
MA16 Diverter valve motor (cooling)
MA20 Motor, heat pump fan
MA21 Motor, supply air fan
MA22 Motor, extract air fan
RF01 Interference suppression filter
RF06 Ferrite core ring
SF01 Reset button
XD01 Compressor/HP fan power supply
XD02 Instantaneous water heater (MFG) power supply
XD03 230V PCB inputs power supply
XD04 Terminals for external temperature sensor and CAN
bus
XD11 Booster heater power supply (optional/cylinder)
XD20 Terminal
XD21 L block terminal
XD22 N block terminal
XD23 3-pin terminal
XD24 4-pin terminal
XD27 CAN bus programming unit connector
XD76 Diverter valve connector (alternative)
XD77 Integral sensor connector
XD78 Supply air fan connector
XD79 Extract air fan connector
XD80 Heat pump fan connector
XE03 Clamping plate earth connection for external
XE08 Temperature sensor earth terminal
XE09 Temperature sensor earth terminal
XE12 Control panel earth connection
XE15 Clamping plate earth connection
XE16 Lower control panel earth connection
XE17 Cylinder earth connection
AA02-X1 Connector X1, temperature sensor, 8-pin
AA02-X2 Connector X2, temperature sensor, 12-pin
AA02-X3 Connector X3, circulation pump/ ext. pumps
AA02-X4 Connector X4, LV input: Pressure and humidity sen-
sor, float switch
AA02-X5 Connector X5, pressure transducer HP/LP
AA02-X51 Connector X51, flow sensor
AA02-X6 Modbus connection
AA02-X7 Connector X7, CAN bus
AA02-X8 Connector X8, CAN BUS, programming unit
AA02-X9 Connector X9, stepper motor
AA02-X10 Connector X10 EXV, evaporator
AA02-X11 Connector X11 EXV, heat pipe
AA02-X12 Connector X12, supply air fan
AA02-X13 Connector X13, extract air fan
AA02-X14 Connector X14, heat pump fan
AA02-X15 Connector X15, input
AA02-X16 Connector X16, mains power
AA02-X17 Connector X17, output 1
AA02-X18 Connector X18, output 2
AA02-X19 Connector X19, compressor
AA02-X20 Connector X20, DHC input/output
AA02-X22 Connector X22, air differential pressure sensor
AA02-X23 Connector X23, air differential pressure sensor 2
AA02-X24 Connector X24, temperature sensor
AA02-X25 USB port / Service plug
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