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14 Technical data
Installer reference guide
92
ERHQ+ERLQ011~016 + 16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
English
Translation
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) User interface
(2) User interface
Only for remote user interface
option
Only for remote user interface
option
SWB
Switch box
(3) Ext. thermistor
(3) External thermistor
SWB
Switch box
(4) Field supplied options
(4) Field supplied options
230 V AC supplied by PCB
230 V AC supplied by PCB
5 V DC pulse detection (voltage
supplied by PCB)
5 V DC pulse detection (voltage
supplied by PCB)
Continuous
Continuous current
DHW pump
Domestic hot water pump
DHW pump output
Domestic hot water pump output
Electrical meters
Electrical meters
For safety thermostat
For safety thermostat
Inrush
Inrush current
Max. load
Maximum load
Normally closed
Normally closed
Normally open
Normally open
Safety thermostat contact: 16 V
DC detection (voltage supplied
by PCB)
Safety thermostat contact:
16 V DC detection (voltage
supplied by PCB)
Shut-off valve
Shut-off valve
SWB
Switch box
(5) Domestic hot water tanks
(5) Domestic hot water tanks
3 wire type SPST
3 wire type SPST
Anti-legionella heater power
supply
Anti-legionella heater power
supply
For ***
For ***
For *** or ***
For *** or ***
SWB
Switch box
(6) Optional BUH
(6) Optional backup heater
SWB
Switch box
English
Translation
(7) Anti-legionella heater power
supply
(7) Anti-legionella heater power
supply
For ***
For ***
(8) Option PCBs
(8) Option PCBs
Alarm output
Alarm output
Changeover to ext. heat source
Changeover to external heat
source
For digital I/O PCB option
For digital I/O PCB option
For solar pump station
For solar pump station
Max. load
Maximum load
Min. load
Minimum load
Only for ***
Only for ***
Only for demand PCB option
Only for demand PCB option
Only if no ***
Only if no ***
Options: boiler output, solar
pump connection (only EHBH*),
alarm output
Options: boiler output, solar
pump connection (only EHBH*),
alarm output
Options: bottom plate heater OR
On/OFF output
Options: bottom plate heater OR
On/OFF output
Outdoor unit
Outdoor unit
Power limitation digital inputs: 12
V DC / 12 mA detection (voltage
supplied by PCB)
Power limitation digital inputs:
12 V DC / 12 mA detection
(voltage supplied by PCB)
Refer to operation manual
Refer to operation manual
Solar pump connection
Solar pump connection
Space C/H On/OFF output
Space cooling/heating On/OFF
output
Switch box
Switch box
To bottom plate heater
To bottom plate heater
(9) External On/OFF thermostats
and heat pump convector
(9) External On/OFF thermostats
and heat pump convector
Additional LWT zone
Additional leaving water
temperature zone
For external sensor (floor/
ambient)
For external sensor (floor or
ambient)
For heat pump convector
For heat pump convector
For wired thermostat
For wired thermostat
For wireless thermostat
For wireless thermostat
Main LWT zone
Main leaving water temperature
zone