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10 Technical data
Installation manual
48
EBSH/X(B)11+16P30+50DF
Daikin Altherma 3 R ECH
₂
O
4P663483-1A – 2021.11
10.2
Wiring diagram: Indoor unit
See the internal wiring diagram supplied with the unit (on the inside of the indoor unit switch box cover). The abbreviations used are listed
below.
Notes to go through before starting the unit
English
Translation
Notes to go through before
starting the unit
Notes to go through before
starting the unit
X1M
Main terminal
X12M
Field wiring terminal for AC
X15M
Field wiring terminal for DC
X6M
Backup heater power supply
terminal
Earth wiring
Field supply
1
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
Backup heater power supply
Backup heater power supply
3V (1N~, 230 V, 3 kW)
3V (1N~, 230 V, 3 kW)
6V (1N~, 230 V, 6 kW)
6V (1N~, 230 V, 6 kW)
6WN/9WN (3N~, 400 V, 6/9
kW)
6WN/9WN (3N~, 400 V,
6/9 kW)
User installed options
User installed options
Backup heater
Backup heater
Remote user interface
Dedicated Human Comfort
Interface (BRC1HHDA used as
room thermostat)
Ext. indoor thermistor
External indoor thermistor
Ext outdoor thermistor
External outdoor thermistor
Demand PCB
Demand PCB
Smartgrid kit
Smart grid kit
WLAN adapter module
WLAN adapter module
WLAN cartridge
WLAN cartridge
Bizone mixing kit
Bizone mixing kit
Safety thermostat
Safety thermostat
Main LWT
Main 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
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
Main switch box
SWB2
Backup heater switch box
Legend
A1P
Main PCB
A2P
* On/OFF thermostat (PC=power circuit)
A3P
* Heat pump convector
A8P
* Demand PCB
A11P
MMI (= user interface of the indoor unit) –
Main PCB
A14P
* PCB of the dedicated Human Comfort
Interface (BRC1HHDA used as room
thermostat)
A15P
* Receiver PCB (wireless On/OFF thermostat)
A20P
* WLAN module
A23P
Hydro extension PCB
A30P
Bizone mixing kit PCB
DS1(A8P)
* DIP switch
F1B
# Overcurrent fuse backup heater
F2B
# Overcurrent fuse main
FU1 (A1P)
Fuse (T 5 A 250 V for PCB)
FU1 (A23P)
Fuse (3.15 A 250 V for PCB)
K1A, K2A
* High voltage smartgrid relay
K1M, K2M
Contactor backup heater
K5M
Safety contactor backup heater
M2P
# Domestic hot water pump
M4S
# 2-way valve for cooling mode
PC (A15P)
* Power circuit
Q1L
Thermal protector backup heater
Q4L
# Safety thermostat
Q*DI
# Earth leakage circuit breaker
R1H (A2P)
* Humidity sensor
R1T (A2P)
* Ambient sensor On/OFF thermostat
R2T (A2P)
* External sensor (floor or ambient)
R6T
* External indoor or outdoor ambient
thermistor
S1S
# Preferential kWh rate power supply contact
S2S
# Electricity meter pulse input 1
S3S
# Electricity meter pulse input 2
S4S
# Smart grid feed-in
S6S~S9S
* Digital power limitation inputs
S10S~S11S
# Low voltage Smart grid contact
S12S
Gas meter input
S13S
Solar input
TR1
Power supply transformer
X*, X*A, X*Y, Y*
Connector
X*M
Terminal strip
*
Optional
#
Field supply
Translation of text on wiring diagram
English
Translation
(1) Main power connection
(1) Main power connection
Outdoor unit
Outdoor unit
SWB1
Switch box
(2) User interface
(2) User interface
Summary of Contents for Altherma 3 R ECH2O
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