Wiring Diagram: Indoor Unit - Daikin Altherma 3 H W Serie Manual De Instalación

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8 Technical data
8.2

Wiring diagram: Indoor unit

See the internal wiring diagram supplied with the unit (on the inside of the indoor unit upper front panel). The abbreviations used are listed
below.
Notes to go through before starting the unit
English
Notes to go through before
starting the unit
X1M
X2M
X5M
X6M
X7M/X8M
1
Note 1: Connection point of the
power supply for the BUH/BSH
should be foreseen outside the
unit.
Backup heater power supply
 3V3 (1N~, 230 V, 3 kW)
 6T1 (3~, 230 V, 6 kW)
 6V3 (1N~, 230 V, 6 kW)
 6WN (3N~, 400 V, 6
kW)/9WN (3N~, 400 V, 9 kW)
User installed options
 LAN adapter
 Domestic hot water tank
 Remote user interface
 Ext. indoor thermistor
 Ext outdoor thermistor
 Digital I/O PCB
 Demand PCB
 Bottom plate heater
Main LWT
 On/OFF thermostat (wired)
 On/OFF thermostat (wireless)
 Ext. thermistor
 Heat pump convector
 Safety thermostat
Add LWT
 On/OFF thermostat (wired)
 On/OFF thermostat (wireless)
 Ext. thermistor
 Heat pump convector
Position in switch box
English
Position in switch box
Installation manual
26
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
Booster heater power supply
terminal
Earth wiring
Field supply
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
Note 1: Connection point of the
power supply for the backup
heater should be foreseen outside
the unit.
Backup heater power supply
 3V3 (3~, 230 V, 6 kW)
 6T1 (3~, 230 V, 6 kW)
 6V3 (1N~, 230 V, 6 kW)
 6WN/9WN (3N~, 400 V, 6 kW)
User installed options
 LAN adapter
 Domestic hot water tank
 User interface used as room
thermostat
 External indoor thermistor
 External outdoor thermistor
 Digital I/O PCB
 Demand PCB
 Bottom plate heater
Main leaving water temperature
 On/OFF thermostat (wired)
 On/OFF thermostat (wireless)
 External thermistor
 Heat pump convector
 Safety thermostat
Additional leaving water
temperature
 On/OFF thermostat (wired)
 On/OFF thermostat (wireless)
 External thermistor
 Heat pump convector
Translation
Position in switch box
Legend
A1P
Main PCB
A2P
* On/OFF thermostat (PC=power circuit)
A3P
* Heat pump convector
A4P
* Digital I/O PCB
A8P
* Demand PCB
A10P
MMI (= user interface connected to the
indoor unit) – Power supply unit PCB
A11P
MMI (= user interface connected to the
indoor unit) – Main PCB
A13P
* LAN adapter
A14P
* User interface PCB
A15P
* Receiver PCB (wireless On/OFF thermostat)
BSK (A3P)
* Solar pump station relay
CN* (A4P)
* Connector
DS1(A8P)
* DIP switch
F1B
# Overcurrent fuse backup heater
F2B
# Overcurrent fuse booster heater
F1U, F2U (A4P)
* Fuse 5 A 250 V for digital I/O PCB
K1M, K2M
Contactor backup heater
K3M
Contactor booster heater
K5M
Safety contactor backup heater
K*R (A4P)
Relay on PCB
M2P
# Domestic hot water pump
M2S
# 2-way valve for cooling mode
M3S
# 3-way valve for floorheating/domestic hot
water
PC (A15P)
* Power circuit
PHC1 (A4P)
* Optocoupler input circuit
Q2L
Thermal protector booster 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
S6S~S9S
* Digital power limitation inputs
SS1 (A4P)
* Selector switch
TR1
Power supply transformer
X6M
# Backup heater power supply terminal strip
X7M/X8M
# Booster heater power supply terminal strip
X*, X*A, X*Y, Y*
Connector
X*M
Terminal strip
*
Optional
#
Field supply
EABH/X16DF6V+9W
Daikin Altherma 3 H W
4P644479-1 – 2020.12
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