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Technical data
Installer reference guide
282
ERGA04~V3A+V37 + EHSH/X(B)04+08P30+50EF
Daikin Altherma 3 R ECH₂O
4P678716-1A – 2022.07
English
Translation
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)
SWB
Switch box
(5) External On/OFF thermostats and
heat pump convector
(5) External On/OFF thermostats and
heat pump convector
Additional LWT zone
Additional leaving water temperature
zone
Main LWT zone
Main leaving water temperature zone
Only for external sensor (floor/ambient) Only for external sensor (floor or
ambient)
Only for heat pump convector
Only for heat pump convector
Only for wired On/OFF thermostat
Only for wired On/OFF thermostat
Only for wireless On/OFF thermostat
Only for wireless On/OFF thermostat
(6) Backup heater power supply
(6) Backup heater power supply
Only for ***
Only for ***
SWB2
Switch box