auer HRC70 17 - Page 78

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
78
HIGH TEMPERATURE ENERGY EFFICIENT HEAT PUMP
L1 + L2 + L3 + N + Ground = 400 V three phase power supply for HRC
70
Pilot (as wired at factory) (for a 230V single
phase power supply, see § Connecting the HRC
70
Pilot to the power supply)
HPCP ...........................................= Heat Pump circuit circulator pump
C1CP ............................................= Heating circuit 1 circulator pump
C2CP ............................................= Heating circuit 2 circulator pump (optional)
HPFM ..........................................= Heat Pump circuit  ow rate monitor
SP .................................................= HRC
70
Pilot temperature sensor (TSeau input / electronics board)
SAQ ..............................................= HRC
70
Pilot safety aquastat with manaual reset 110°C
WPS..............................................= HRC
70
Pilot water pressure sensor
OS ................................................. = HRC
70
Pilot Heat Pump outdoor temperature sensor (Ext. input /electronics board)
TC1 ..............................................= Heating circuit 1 room thermostat ( Amb1 input / electronics board) (optional)
or TSC1 .......................................= Heating circuit 1 room temperature sensor with display (Amb1 input / electronics
board) (optional)
TC2 ..............................................= Heating circuit 2 room thermostat (Amb2 input / electronics board) (optional)
ou TSC2 .....................................= Heating circuit 2 temperature sensor (Amb2 input / electronics board) (optional)
AQ DHW .....................................= Circuit 2 domestic water aquastat ( Amb2 input / electronics board)
or SECS ......................................= Heating circuit 2 domestic water temperature sensor (Amb2 input / electronics
board) (optional)
Del ..........................................= Load shedding input
HP/HC ........................................= Peak / o peak time input
App1 .......................................= 230 V output electrical back-up command, 1
st
stage
App2 .......................................= 230 V output electrical back-up command, 2
nd
stage
App3 .......................................= 230 V output electrical back-up command, 3
rd
stage
Chaud. .......................................= On / o command for existing boiler
BUS .........................................= Link between Heat Pump / HRC
70
Pilot with sheathed 2-core cable (10m long supplied,
20m available to order -Ref.751005)
USB .........................................= Memory stick input for reading recorded data
F1 .................................................= 4A protection fuse for electronics board
Alim ............................................= Electronics board power supply 230 V + ground
LTP 1 / UTL 1 .............................= temperature-limiting safety device for under oor heating as circuit 1 (optional)
LTP 2 / UTL 2 .............................= temperature-limiting safety device for under oor heating as circuit 2 (optional)
K1 ; K2 ; K3 ................................= Power contactors stages 1 to 3
T ...................................................= Electrical back-up from 2000 W electric immersion heater
Optional swimming pool kit:
IP ..................................................= Switch for heating (winter) / pool (summer)
RP1 and RP2 ............................= Swimming pool relay
Key:• HRC
70
Pilot schematic electrical diagram
• HRC
70
Pilot internal wiring diagram