14 Technical data
English
(3) User interface
Only for remote user interface
option
Switch box
(4) Domestic hot water tanks
3 wire type SPST
Booster heater power supply
Only for ***
Only for wall-mounted models
Switch box
(5) Ext. thermistor
Switch box
(6) Field supplied options
12 V DC pulse detection (voltage
supplied by PCB)
230 V AC supplied by PCB
Continuous
DHW pump output
DHW pump
Electrical meters
For safety thermostat
Inrush
Max. load
Normally closed
Normally open
Safety thermostat contact: 16 V
DC detection (voltage supplied
by PCB)
Shut-off valve
SWB
(7) Option PCBs
Alarm output
Installer reference guide
88
Translation
(3) User interface
Only for remote user interface
option
Switch box
(4) Domestic hot water tanks
3 wire type SPST
Booster heater power supply
Only for ***
Only for wall-mounted models
Switch box
(5) External thermistor
Switch box
(6) Field supplied options
12 V DC pulse detection (voltage
supplied by PCB)
230 V AC supplied by PCB
Continuous current
Domestic hot water pump output
Domestic hot water pump
Electrical meters
For safety thermostat
Inrush current
Maximum load
Normally closed
Normally open
Safety thermostat contact:
16 V DC detection (voltage
supplied by PCB)
Shut-off valve
Switch box
(7) Option PCBs
Alarm output
English
Changeover to ext. heat source
If no bottom plate heater
Max. load
Min. load
Only for bottom plate heater
Only for demand PCB option
Only for digital I/O PCB option
Only for solar pump station
Options: bottom plate heater OR
On/OFF output
Options: ext. heat source output,
solar pump connection, alarm
output
Outdoor unit
Power limitation digital inputs: 12
V DC / 12 mA detection (voltage
supplied by PCB)
Refer to operation manual
Solar pump connection
Space C/H On/OFF output
Switch box
To bottom plate heater
(8) External On/OFF thermostats
and heat pump convector
Additional LWT zone
Main LWT zone
Only for external sensor (floor/
ambient)
Only for heat pump convector
Only for wired thermostat
Only for wireless thermostat
Translation
Changeover to external heat
source
If no bottom plate heater
Maximum load
Minimum load
Only for bottom plate heater
Only for demand PCB option
Only for digital I/O PCB option
Only for solar pump station
Options: bottom plate heater OR
On/OFF output
Options: external heat source
output, solar pump connection,
alarm output
Outdoor unit
Power limitation digital inputs:
12 V DC / 12 mA detection
(voltage supplied by PCB)
Refer to operation manual
Solar pump connection
Space cooling/heating On/OFF
output
Switch box
To bottom plate heater
(8) External On/OFF thermostats
and heat pump convector
Additional leaving water
temperature zone
Main leaving water temperature
zone
Only for external sensor (floor or
ambient)
Only for heat pump convector
Only for wired thermostat
Only for wireless thermostat
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1C – 2017.04
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