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16
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Technical data
Installer reference guide
284
English
Inrush
Max. load
Normally closed
Normally open
Safety thermostat contact: 16 V DC
detection (voltage supplied by PCB)
Shut-off valve
Smartgrid contacts
Smartgrid PV power pulse meter
SWB
(7) Option PCBs
Alarm output
Changeover to ext. heat source
Max. load
Min. load
Only for demand PCB option
Only for digital I/O PCB option
Options: external heat source output,
solar pump connection, alarm output
Options: On/OFF output
Power limitation digital inputs: 12 V
DC / 12 mA detection (voltage supplied
by PCB)
Refer to operation manual
Solar input
Solar pump connection
Space C/H On/OFF output
SWB
(8) External On/OFF thermostats and
heat pump convector
Additional LWT zone
Main LWT zone
Only for external sensor (floor/ambient) Only for external sensor (floor or
Only for heat pump convector
Only for wired On/OFF thermostat
Only for wireless On/OFF thermostat
Translation
Inrush current
Maximum load
Normally closed
Normally open
Safety thermostat contact: 16 V DC
detection (voltage supplied by PCB)
Shut-off valve
Smart Grid contacts
Smart Grid photovoltaic power pulse
meter
Switch box
(7) Option PCBs
Alarm output
Changeover to external heat source
Maximum load
Minimum load
Only for demand PCB option
Only for digital I/O PCB option
Options: external heat source output,
solar pump connection, alarm output
Options: ON/OFF output
Power limitation digital inputs:
12 V DC / 12 mA detection (voltage
supplied by PCB)
Refer to the operation manual
Solar input
Solar pump connection
Space cooling/heating ON/OFF output
Switch box
(8) External ON/OFF thermostats and
heat pump convector
Additional leaving water temperature
zone
Main leaving water temperature zone
ambient)
Only for heat pump convector
Only for wired ON/OFF thermostat
Only for wireless ON/OFF thermostat
EPRA14~18D + ETBH/X16E
Daikin Altherma 3 H HT W
4P644736-1D – 2023.10
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