14 Technical data
Installer reference guide
87
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1C – 2017.04
English
Translation
Remote user interface
Remote user interface
Ext. indoor thermistor
External indoor thermistor
Ext outdoor thermistor
External outdoor thermistor
Digital I/O PCB
Digital I/O PCB
Demand PCB
Demand PCB
Solar pump and control station
Solar pump and control station
Main LWT
Main leaving water temperature
On/OFF thermostat (wired)
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
On/OFF thermostat (wireless)
Ext. thermistor
External thermistor
Heat pump convector
Heat pump convector
Add LWT
Additional leaving water
temperature
On/OFF thermostat (wired)
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
On/OFF thermostat (wireless)
Ext. thermistor
External thermistor
Heat pump convector
Heat pump convector
Position in switch box
English
Translation
Position in switch box
Position in switch box
Legend
A1P
Main PCB
A2P
User interface PCB
A3P
*
Solar pump station PCB
A3P
*
On/OFF thermostat (PC=power circuit)
A3P
*
Heat pump convector
A4P
*
Digital I/O PCB
A4P
*
Receiver PCB (Wireless On/OFF
thermostat)
A5P
Anode driver PCB
A8P
*
Demand PCB
B1L
Flow sensor
BSK (A3P)
*
Solar pump station relay
DS1 (A8P)
*
DIP switch
E1A
Electrical anode
E1H
Backup heater element (1 kW)
E2H
Backup heater element (2 kW)
E3H
Backup heater element (3 kW)
E4H
*
Booster heater (3 kW)
F1B
Overcurrent fuse backup heater
F2B
*
Overcurrent fuse booster heater
F1T
Thermal fuse backup heater
F1U, F2U (A4P)
*
Fuse 5 A 250 V for digital I/O PCB
FU1 (A1P)
Fuse T 6.3 A 250 V for PCB
K1M, K2M
Contactor backup heater
K3M
*
Contactor booster heater
K5M
Safety contactor backup heater (only for
*9W)
K*R (A1P, A4P)
Relay on PCB
M1P
Main supply pump
M2P
#
Domestic hot water pump
M2S
#
2-way valve for cooling mode
M3S
(*) 3-way valve for floor heating/domestic hot
water
PC (A4P)
Power circuit
PHC1 (A4P)
*
Optocoupler input circuit
Q*DI
#
Earth leakage circuit breaker
Q1L
Thermal protector backup heater
Q2L
*
Thermal protector booster heater
R1H (A3P)
*
Humidity sensor
R1T (A1P)
Outlet water heat exchanger thermistor
R1T (A2P)
Ambient sensor user interface
R1T (A3P)
*
Ambient sensor On/OFF thermostat
R2T (A1P)
Outlet backup heater thermistor
R2T (A3P)
*
External sensor (floor or ambient)
R3T
Refrigerant liquid side thermistor
R4T
Inlet water thermistor
R5T
(*) Domestic hot water thermistor
R6T
*
External indoor or outdoor ambient
thermistor
S1S
#
Preferential kWh rate power supply contact
S2S
#
Electrical meter pulse input 1
S3S
#
Electrical meter pulse input 2
S4S
#
Safety thermostat
S6S~S9S
#
Digital power limitation inputs
SS1 (A4P)
*
Selector switch
TR1
Power supply transformer
CN1-2, X*A
X1H, X*Y
Connector
X*M
Terminal strip
*:
Optional
(*):
Optional for RHBH/X
#:
Field supply
Colours
BLK
Black
BRN
Brown
GRY
Grey
RED
Red
Translation of text on wiring diagram
English
Translation
(1) Main power connection
(1) Main power connection
For preferential kWh rate power
supply
For preferential kWh rate power
supply
Indoor unit supplied from outdoor Indoor unit supplied from outdoor
Normal kWh rate power supply
Normal kWh rate power supply
Only for normal power supply
(standard)
Only for normal power supply
(standard)
Only for preferential kWh rate
power supply (outdoor)
Only for preferential kWh rate
power supply (outdoor)
Outdoor unit
Outdoor unit
Preferential kWh rate power
supply contact: 16 V DC
detection (voltage supplied by
PCB)
Preferential kWh rate power
supply contact: 16 V DC
detection (voltage supplied by
PCB)
Use normal kWh rate power
supply for indoor unit
Use normal kWh rate power
supply for indoor unit
(2) Backup heater power supply
(2) Backup heater power supply
Only for ***
Only for ***
