Daikin EBLA08E23V3 Installation Manual page 47

English
Preferential kWh rate power
supply contact: 16 V DC
detection (voltage supplied by
PCB)
Remote user interface
Safety thermostat contact: 16 V
DC detection (voltage supplied
by PCB)
Smartgrid contacts
Smartgrid PV power pulse meter Smart Grid photovoltaic power
SWB
(7) External On/OFF thermostats
and heat pump convector
Additional LWT zone
Main LWT zone
Only for ext. sensor (floor or
ambient)
Only for heat pump convector
Only for wired On/OFF
thermostat
Only for wireless On/OFF
thermostat
Only for ***
Hydro module — Internal backup heater
Translation of text on wiring diagram:
English
(1) Connection diagram
For internal BUH option
Hydro
Outdoor
SWB
(2) Notes
X1M
X2M
X4M
X5M
X9M
X10M
1
(3) BUH switch box
Rear
(4) Legend
*: Optional; #: Field supply
A1P
A4P
EBLA04~08E2V3+E23V3 + EDLA04~08E2V3+E23V3
Daikin Altherma 3 M
4P685229-1D – 2022.10
Translation
Preferential kWh rate power
supply contact: 16 V DC
detection (voltage supplied by
PCB)
Remote user interface
Safety thermostat contact:
16 V DC detection (voltage
supplied by PCB)
Smart Grid contacts
pulse meter
Switch box
(7) External On/OFF thermostats
and heat pump convector
Additional leaving water
temperature zone
Main leaving water temperature
zone
Only for external sensor (floor or
ambient)
Only for heat pump convector
Only for wired On/OFF
thermostat
Only for wireless On/OFF
thermostat
Only for ***
Translation
(1) Connection diagram
For models with integrated
backup heater
Hydro module
Outdoor
Hydro switch box
(2) Notes
Terminal (main)
Terminal (field wiring for AC)
Terminal (booster heater power
supply)
Terminal (field wiring for DC)
Terminal (integrated backup
heater power supply)
Terminal (Smart Grid)
Earth wiring
Field supply
Several wiring possibilities
Option
Wiring depending on model
Switch box
PCB
(3) Backup heater switch box
Rear
(4) Legend
Main PCB
* Digital I/O PCB
English
A8P * Demand PCB
F1B # Overcurrent fuse backup heater
K1A, K2A * High voltage Smart Grid relay
K1M
K3M * Contactor booster heater
Q1DI # Earth leakage circuit breaker
TR1
X4M * Terminal strip (booster heater
X6M # Terminal strip (power supply at
X9M
X10M * Terminal (high voltage Smart
X*A
X*M
11 Technical data
Translation
Safety contactor backup heater
Power supply transformer
power supply)
client side)
Terminal strip (integrated backup
heater power supply)
Grid)
Connector
Terminal strip
Installation manual
47