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Technical data
Installer reference guide
233
EPRA14~W1 + ET9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01
English
Translation
Heat pump convector
Heat pump convector
Add LWT
Additional leaving water temperature
On/OFF thermostat (wired)
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
On/OFF thermostat (wireless)
Ext. thermistor
External thermistor
Heat pump convector
Heat pump convector
Position in switch box
English
Translation
Position in switch box
Position in switch box
SWB1
Upper switch box
SWB2
Lower switch box
Legend
A1P
Main PCB
A2P
* On/OFF thermostat (PC=power circuit)
A3P
* Heat pump convector
A4P
* Digital I/O PCB
A5P
Bizone PCB
A6P
Current loop PCB
A8P
* Demand PCB
A11P
MMI (= user interface of the indoor unit) – Main PCB
A13P
* LAN adapter
A14P
* PCB of the dedicated Human Comfort Interface
(BRC1HHDA used as room thermostat)
A15P
* Receiver PCB (wireless On/OFF thermostat)
A20P
* WLAN adapter
CN* (A4P)
* Connector
DS1 (A8P)
* DIP switch
F1B
# Overcurrent fuse backup heater
F1U, F2U (A4P)
* Fuse 5 A 250 V for digital I/O PCB
K1M, K2M
Contactor backup heater
K5M
Safety contactor backup heater
K6M
Relay 3-way valve bypass
K7M
Relay 3-way valve flow
K*R (A4P)
Relay on PCB
M2P
# Domestic hot water pump
M2S
# 2-way valve for cooling mode
PC (A15P)
* Power circuit
Содержание Altherma 3 H HT EPRA18DAW1
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