Table of Contents
Advertisement
10 Technical data
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
Notes to go through before
starting the unit
X1M
X12M
X15M
X6M
1
Backup heater power supply
3V (1N~, 230 V, 3 kW)
6V (1N~, 230 V, 6 kW)
6WN/9WN (3N~, 400 V, 6/9
kW)
User installed options
Backup heater
Remote user interface
Ext. indoor thermistor
Ext outdoor thermistor
Demand PCB
Smartgrid kit
WLAN adapter module
WLAN cartridge
Bizone mixing kit
Safety thermostat
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
SWB1
SWB2
Installation manual
40
Translation
Notes to go through before
starting the unit
Main terminal
Field wiring terminal for AC
Field wiring terminal for DC
Backup heater power supply
terminal
Earth wiring
Field supply
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
Backup heater power supply
3V (1N~, 230 V, 3 kW)
6V (1N~, 230 V, 6 kW)
6WN/9WN (3N~, 400 V,
6/9 kW)
User installed options
Backup heater
Dedicated Human Comfort
Interface (BRC1HHDA used as
room thermostat)
External indoor thermistor
External outdoor thermistor
Demand PCB
Smart grid kit
WLAN adapter module
WLAN cartridge
Bizone mixing kit
Safety thermostat
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
Translation
Position in switch box
Main switch box
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
(1) Main power connection
Outdoor unit
SWB1
(2) User interface
Translation
(1) Main power connection
Outdoor unit
Switch box
(2) User interface
ETSH/X(B)16P30+50EF
Daikin Altherma 3 H HT ECH₂O
4P679468-1 – 2022.02
Advertisement
Table of Contents
