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Technical data
Installer reference guide
282
EPRA14~W1 + ETSH/X(B)16P30+50EF
Daikin Altherma 3 H HT ECH₂O
4P679467-1 – 2022.02
R1H (A2P)
* Humidity sensor
R1T (A2P)
* Ambient sensor On/OFF thermostat
R2T (A2P)
* External sensor (floor or ambient)
R6T
* External indoor or outdoor ambient thermistor
S1S
# Preferential kWh rate power supply contact
S2S
# Electricity meter pulse input 1
S3S
# Electricity meter pulse input 2
S4S
# Smart grid feed-in
S6S~S9S
* Digital power limitation inputs
S10S~S11S
# Low voltage Smart grid contact
S12S
Gas meter input
S13S
Solar input
TR1
Power supply transformer
X*, X*A, X*Y, Y*
Connector
X*M
Terminal strip
*
Optional
#
Field supply
Translation of text on wiring diagram
English
Translation
(1) Main power connection
(1) Main power connection
Outdoor unit
Outdoor unit
SWB1
Switch box
(2) User interface
(2) User interface
Only for remote user interface
Only for the user interface used as
room thermostat
SD card
Card slot for WLAN cartridge
SWB1
Switch box
WLAN cartridge
WLAN cartridge
WLAN cartridge option
WLAN cartridge option
WLAN adapter module option
WLAN adapter module option
(3) Field supplied options
(3) Field supplied options
12 V DC pulse detection (voltage
supplied by PCB)
12 V DC pulse detection (voltage
supplied by PCB)
230 V AC Control Device
230 V AC Control Device
230 V AC supplied by PCB
230 V AC supplied by PCB
Alarm output
Alarm output
BUH option
Backup heater option
BUH option only for *
Backup heater option only for *
Bizone mixing kit
Bizone mixing kit