14 | Technical data
Installer reference guide
217
ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
F2B # Overcurrent fuse booster heater
F1T Thermal fuse backup heater
F1U, F2U (A4P) * Fuse 5A 250V for digital I/O PCB
FU1 (A1P) Fuse T 5A 250V for PCB
FU2 (A10P) Fuse T 1.6A 250V for PCB
K1M, K2M Contactor backup heater
K3M * Contactor booster heater
K5M Safety contactor backup heater
K*R (A1P-A4P) Relay on PCB
M1P Main supply pump
M2P # Domestic hot water pump
M2S # 2-way valve for cooling mode
M3S * 3-way valve for floor heating/domestic hot water
P1M MMI display
PC (A15P) * Power circuit
PHC1 (A4P) * Optocoupler input circuit
Q1L Thermal protector backup heater
Q2L * Thermal protector booster heater
Q4L # Safety thermostat
Q*DI # Earth leakage circuit breaker
R1H (A2P) * Humidity sensor
R1T (A1P ) Outlet water heat exchanger thermistor
R1T (A2P) * Ambient sensor On/OFF thermostat
R1T (A14P) * Ambient sensor user interface
R2T (A1P) Outlet backup heater thermistor
R2T (A2P) * 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
S1S # Preferential kWh rate power supply contact
S2S # Electrical meter pulse input 1
S3S # Electrical meter pulse input 2
S6S~S9S * Digital power limitation inputs
SS1 (A4P) * Selector switch
SW1~2 (A12P) Turn buttons
SW3~5 (A12P) Push buttons
TR1 Power supply transformer
To Next Page
Loading...
