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11 Technical data
English
SWB2
(2) Notes
X1M
X2M
X4M
X5M
X9M
X10M
1
(3) BUH switch box
SWB1
SWB2
SWB3
(4) Legend
*: Optional; #: Field supply
A1P
A4P
A8P
F1B
K1A, K2A
K1M
K3M
Q1DI
TR1
X4M
X6M
X9M
X10M
X*A
X*M
Installation manual
52
Translation
Hydro switch box 2 (right side)
(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
Hydro switch box 1 (front side)
Hydro switch box 2 (right side)
Hydro switch box 3 (behind
SWB2)
(4) Legend
Main PCB
* Digital I/O PCB
* Demand PCB
# Overcurrent fuse backup heater
* High voltage Smart Grid relay
Safety contactor backup heater
* Contactor booster heater
# Earth leakage circuit breaker
Power supply transformer
* Terminal strip (booster heater
power supply)
# Terminal strip (power supply at
client side)
Terminal strip (integrated backup
heater power supply)
* Terminal (high voltage Smart
Grid)
Connector
Terminal strip
EBLA09~16D + EDLA09~16D
Daikin Altherma 3 M
4P620239-1B – 2022.05
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