Daikin Altherma ERLQ004-006-008CA Reference Manual page 83

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
A8P * Demand PCB
B1L Flow sensor
DS1 (A5P) * DIP switch
DS1 (A8P) * DIP switch
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
FU2 (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 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
PHC1 * Optocoupler input circuit
Q1DI, Q2DI # Earth leakage circuit breaker
Q1L Thermal protector backup heater
Q3L # Safety thermostat
R1T (A1P) Outlet water heat exchanger thermistor
R1T (A2P) Ambient sensor user interface
ERLQ004~008CA + EHVZ04+08S18CB
Daikin Altherma – Low temperature split
4P401676-1 – 2015.02
R1T (A3P) * Ambient sensor On/OFF thermostat
R2T (A1P) Outlet backup heater thermistor
R2T (A3P) * 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
R7T (A5P) Mixed leaving water thermistor
R1H (A3P) * Humidity sensor
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
TR1 Power supply transformer
X*M Terminal strip
X*Y Connector
* = Optional
# = Field supply
BLK Black
BRN Brown
GRY Grey
RED Red
Notes to go through before starting the unit
English
X1M
X2M
X5M
15
**
/12.2
1
14 Technical data
Translation
Main terminal
Field wiring terminal for AC
Field wiring terminal for DC
Earth wiring
Wire number 15
Field supply
Connection ** continues on page
12 column 2
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
Installer reference guide
83