Daikin Altherma 08CA Installer's Reference Manual page 105

Hybrid heat pump
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A4P
*
Receiver PCB (Wireless On/OFF
thermostat, PC=power circuit)
A8P
*
Demand PCB
B1L
Flow sensor
DS1 (A8P)
*
DIP switch
F1U, F2U
*
Fuse 5 A 250 V for digital I/O PCB (A4P)
FU1
Fuse T 6.3 A 250 V for main PCB (A1P)
K*R
Relay on PCB
M1P
Main water supply pump
M2P
#
Domestic hot water pump
M2S
#
2-way valve for cooling mode
M3S
3-way valve for floor heating/domestic hot
water tank
M4S
Bypass valve for gas boiler
PHC1
*
Optocoupler input circuit
PS
Switching power supply
Q*DI
#
Earth leakage circuit breaker
R1T (A1P)
Outlet water heat exchanger thermistor
R1T (A2P)
Ambient sensor user interface
R1T (A3P)
*
Ambient sensor On/OFF thermostat
R2T (A1P)
Outlet gas boiler thermistor
R2T (A4P)
*
External sensor (floor or ambient)
R3T (A1P)
Refrigerant liquid side thermistor
R4T (A1P)
Inlet water thermistor
R5T (A1P)
*
Domestic hot water thermistor
R6T (A1P)
*
External indoor or outdoor ambient
thermistor
R1H (A3P)
*
Humidity sensor
S1S
#
Preferential kWh rate power supply contact
S2S
#
Electrical meter pulse input
S3S
#
Gas meter pulse input
S4S
#
Safety thermostat
S6S~S9S
#
Digital power limitation inputs
SS1 (A4P)
*
Selector switch
TR1, TR2
Power supply transformer
X*M
Terminal strip
X*Y
Connector
* = Optional
# = Field supply
Translation of text on wiring diagram
English
(1) Main power connection
16 V DC detection (voltage
supplied by PCB)
For preferential kWh rate power
supply
Indoor unit supplied from outdoor Indoor unit supplied from outdoor
Normal kWh rate power supply
Only for normal power supply
(standard)
Only for preferential kWh rate
power supply (outdoor)
EVLQ05+08CAV3 + EHYHBH05AA + EHYHBH/X08AA +
EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P355634-1C – 2018.06
Translation
(1) Main power connection
16 V DC detection (voltage
supplied by PCB)
For preferential kWh rate power
supply
Normal kWh rate power supply
Only for normal power supply
(standard)
Only for preferential kWh rate
power supply (outdoor)
English
Outdoor unit
Use normal kWh rate power
supply for indoor unit
(2) Gas boiler interconnection
Gas boiler
(3) User interface
Only for remote user interface
option
(4) Domestic hot water tank
3 wire type SPDT
3 wire type SPST
(5) Options
230 V AC supplied by PCB
5 V DC pulse detection (voltage
supplied by PCB)
Continuous
DHW pump output
DHW pump
Electrical and gas meter
Ext. thermistor option
For safety thermostat
Inrush
Max. load
Normally closed
Normally open
Safety thermostat contact: 16 V
DC detection (voltage supplied
by PCB)
Shut-off valve
(6) Option PCBs
12 V DC / 12 mA detection
(voltage supplied by PCB)
Alarm output
Max. load
Min. load
Only for demand PCB option
Only for solar pump station
Options: solar pump connection,
alarm output, On/OFF output
Refer to operation manual
Solar pump connection
Switch box
Thermo On/OFF output
(7) External room thermostats
and heat pump convector
Additional LWT zone
Main LWT zone
Only for external sensor (floor/
ambient)
Only for heat pump convector
Only for wired thermostat
Only for wireless thermostat
15 Technical data
Translation
Outdoor unit
Use normal kWh rate power
supply for indoor unit
(2) Gas boiler interconnection
Gas boiler
(3) User interface
Only for remote user interface
option
(4) Domestic hot water tank
3 wire type SPDT
3 wire type SPST
(5) Options
230 V AC supplied by PCB
5 V DC pulse detection (voltage
supplied by PCB)
Continuous current
Domestic hot water pump output
Domestic hot water pump
Electrical and gas meter
External thermistor option
For safety thermostat
Inrush current
Maximum load
Normally closed
Normally open
Safety thermostat contact:
16 V DC detection (voltage
supplied by PCB)
Shut-off valve
(6) Option PCBs
12 V DC / 12 mA detection
(voltage supplied by PCB)
Alarm output
Maximum load
Minimum load
Only for demand PCB option
Only for solar pump station
Options: solar pump connection,
alarm output, On/OFF output
Refer to operation manual
Solar pump connection
Switch box
Thermo On/OFF output
(7) External room thermostats
and heat pump convector
Additional leaving water
temperature zone
Main leaving water temperature
zone
Only for external sensor (floor or
ambient)
Only for heat pump convector
Only for wired thermostat
Only for wireless thermostat
Installer reference guide
105

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