Daikin Altherma EHVZ04S18CB, Installation Manual

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8 Technical data
Installation manual
23
EHVZ04~16S18CB3V
Daikin Altherma – Low temperature split
4P401672-1D – 2017.04
8.2 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
X2M Field wiring terminal for AC
X5M Field wiring terminal for DC
Earth wiring
15
Wire number 15
Field supply
**
/12.2
Connection ** continues on page
12 column 2
1
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
User installed options User installed options
Domestic hot water tank Domestic hot water tank
Remote user interface Remote user interface
Ext. indoor thermistor External indoor thermistor
Ext outdoor thermistor External outdoor thermistor
Digital I/O PCB Digital I/O PCB
Demand PCB Demand PCB
Bottom plate heater Bottom plate heater
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
Safety thermostat Safety thermostat
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
Legend
A1P Main PCB
A2P User interface PCB
A3P * On/OFF thermostat (PC=power circuit)
A3P * Heat pump convector
A4P * Digital I/O PCB
A4P * Receiver PCB (Wireless On/OFF
thermostat)
A5P Bizone PCB
A6P Current loop PCB
A7P Anode driver PCB
A8P * Demand PCB
B1L Flow sensor
DS1 (A5P) DIP switch
DS1 (A8P) DIP switch
E1A Electrical anode
E3H Backup heater element (3 kW)
F1B Overcurrent fuse backup heater
F1T Thermal fuse backup heater
F1U (A4P) * Fuse 5 A 250 V for digital I/O PCB
F2U (A4P) * Fuse 5 A 250 V for digital I/O PCB
F1U (A5P) Fuse T 2 A 250 V for PCB
F2U (A5P) Fuse T 2 A 250 V for PCB
FU1 (A1P) Fuse T 6.3 A 250 V for PCB
K1M Contactor backup heater
K2M Relay 3-way valve bypass
K3M Relay 3-way valve flow
K*R (A1P, A4P) Relay on PCB
M1P Additional zone pump
M2P # Domestic hot water pump
M3P Main zone pump
M1S Mixing 3-way valve
M2S # 2-way valve for cooling mode
M3S 3-way valve for space heating/domestic hot
water
PC (A4P) Power circuit
PHC1 (A4P) * Optocoupler input circuit
Q*DI # Earth leakage circuit breaker
Q1L Thermal protector backup heater
Q3L # Safety thermostat
R1H (A3P) * Humidity sensor
R1T (A1P) Outlet water heat exchanger thermistor
R1T (A2P) Ambient sensor user interface
R1T (A3P) * Ambient sensor On/OFF thermostat
R2T (A1P) Outlet backup heater thermistor
R2T (A3P) * External sensor (floor or ambient)
R3T Refrigerant liquid side thermistor
R4T Inlet water thermistor
R5T Domestic hot water thermistor
R6T * External indoor or outdoor ambient
thermistor
R7T Mixed leaving water thermistor
S1S # Preferential kWh rate power supply contact
S2S # Electrical meter pulse input 1
S3S # Electrical meter pulse input 2
S4S # Safety thermostat
S6S~S9S # Digital power limitation inputs
SS1 (A4P) * Selector switch
TR1 Power supply transformer
CN1-2, X*A
X*H, X*Y
Connector