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11 Technical data
11.2
Wiring diagram: Outdoor unit
The wiring diagram is delivered with the unit, located at the inside of
the service cover.
Compressor module
Translation of text on wiring diagram:
English
(1) Connection diagram
Compressor SWB
Outdoor
(2) Compressor switch box layout (2) Compressor switch box layout
Front
Rear
(3) Legend
*: Optional; #: Field supply
A1P
A2P
A3P
(only for 1N~ models)
Q1DI
X1M
(4) Notes
X1M
1
Hydro module
Translation of text on wiring diagram:
English
(1) Connection diagram
2-point SPST valve
Booster heater power supply
Compressor switch box
External BUH
For DHW tank option
For external BUH option
For normal power supply
(standard)
For preferential kWh rate power
supply (outdoor)
Hydro SWB power supplied from
compressor SWB
Hydro
Normal kWh rate power supply
Outdoor
SWB1
SWB2
Use normal kWh rate power
supply for hydro SWB
(2) Hydro SWB layout
For external BUH option
Installation manual
50
Translation
(1) Connection diagram
Compressor switch box
Outdoor
Front
Rear
(3) Legend
Printed circuit board (main)
Printed circuit board (noise filter)
Printed circuit board (flash)
# Earth leakage circuit breaker
Terminal strip
(4) Notes
Main terminal
Earth wiring
Field supply
Several wiring possibilities
Option
Wiring depending on model
Switch box
PCB
Translation
(1) Connection diagram
2-point SPST valve
Booster heater power supply
Compressor switch box
External backup heater kit
For DHW tank option
For external backup heater kit
For normal power supply
(standard)
For preferential kWh rate power
supply (outdoor)
Hydro switch box power supplied
from compressor switch box
Hydro module
Normal kWh rate power supply
Outdoor
Hydro switch box 1 (front side)
Hydro switch box 2 (right side)
Use normal kWh rate power
supply for hydro switch box
(2) Hydro switch box layout
For external backup heater kit
English
For internal BUH option
SWB1
SWB2
SWB3
(3) Notes
X1M
X2M
X3M
X4M
X5M
X9M
X10M
1
(4) Legend
*: Optional; #: Field supply
A1P
A2P
A3P
A4P
A8P
A11P
A14P
A15P
CN* (A4P)
DS1 (A8P)
E*P (A9P)
F1B
# Overcurrent fuse backup heater
F2B
# Overcurrent fuse booster heater
F1U, F2U (A4P)
K1A, K2A
K1M
K3M
K*R (A4P)
M2P
# Domestic hot water pump
M2S
# 2-way valve for cooling mode
Translation
For models with integrated
backup heater
Hydro switch box 1 (front side)
Hydro switch box 2 (right side)
Hydro switch box 3 (behind
SWB2)
(3) Notes
Terminal (main)
Terminal (field wiring for AC)
Terminal (external backup heater
kit)
Terminal (booster heater power
supply)
Terminal (field wiring for DC)
Terminal (integrated backup
heater power supply)
Terminal (high voltage Smart
Grid)
Earth wiring
Field supply
Several wiring possibilities
Option
Wiring depending on model
Switch box
PCB
(4) Legend
Main PCB
* ON/OFF thermostat (PC=power
circuit)
* Heat pump convector
* Digital I/O PCB
* Demand PCB
MMI (= standalone user interface
delivered as accessory) – Main
PCB
* PCB of the dedicated Human
Comfort Interface (BRC1HHDA
used as room thermostat)
* Receiver PCB (wireless ON/OFF
thermostat)
* Connector
* DIP switch
Indication LED
Fuse 5 A 250 V for digital I/O
PCB
* High voltage Smart Grid relay
Safety contactor backup heater
* Contactor booster heater
Relay on PCB
EBLA09~16D + EDLA09~16D
Daikin Altherma 3 M
4P620239-1B – 2022.05
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