14 Technical data
Installer reference guide
83
ERLQ004~008CA + 08S18CB
Daikin Altherma – Low temperature split
4P401676-1 – 2015.02
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
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
Translation
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
Содержание Altherma EHVZ04S18CB
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