Daikin Altherma 3 R W Installer's Reference Manual page 273

ERGA04~08EA + EHBH/X04+08EF
Daikin Altherma 3 R W
4P629085-1B – 2021.11
English
WLAN cartridge
Main LWT
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
Ext. thermistor
Heat pump convector
Add LWT
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
Ext. thermistor
Heat pump convector
Position in switch box
English
Position in switch box
Legend
A1P
A2P
A3P
A4P
A8P
A11P
A14P
A15P
A20P
CN* (A4P)
DS1 (A8P)
F1B
F2B
F1U, F2U (A4P)
K1A, K2A
K1M, K2M
K3M
K5M
K6M
K7M
WLAN cartridge
Main leaving water temperature
ON/OFF thermostat (wired)
ON/OFF thermostat (wireless)
External thermistor
Heat pump convector
Additional leaving water temperature
ON/OFF thermostat (wired)
ON/OFF thermostat (wireless)
External thermistor
Heat pump convector
Position in switch box
Main PCB
* ON/OFF thermostat (PC=power circuit)
* Heat pump convector
* Digital I/O PCB
* Demand PCB
Main PCB of the MMI (= user interface of the indoor
unit)
* PCB of the dedicated Human Comfort Interface
(BRC1HHDA used as room thermostat)
* Receiver PCB (wireless ON/OFF thermostat)
* WLAN module
* Connector
* DIP switch
# Overcurrent fuse backup heater
# Overcurrent fuse booster heater
* Fuse 5 A 250 V for digital I/O PCB
* High voltage Smart Grid relay
Contactor backup heater
* Contactor booster heater
Safety contactor backup heater
Relay 3-way valve bypass
Relay 3-way valve flow
16 Technical data
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Translation
Translation
Installer reference guide
273