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15 Technical data
5
6
A3P
H
C
H
C
COM
COM
R1T
-t°
only for wired On/OFF thermostat
only for wired On/OFF thermostat
5
6
A4P
H
C
L
N
H
C
COM
COM
PC
A3P
X1M
R1T
R1H
R1T
R2T
-t°
%H20
-t°
-t°
only for wireless
only for wireless
only for ext.
On/OFF thermostat
On/OFF thermostat
sensor
(floor or
ambient)
5
6
X11M
3
4
5
6
X11M
A3P
A3P
Heatpump convector
Heatpump convector
Main LWT zone
Add LWT zone
A1P
Main PCB
A2P
User interface PCB
A3P
*
Solar pump station PCB
A3P
*
On/OFF thermostat (PC=power circuit)
A3P
*
Heat pump convector
A4P
*
Digital I/O PCB
A4P
*
Receiver PCB (Wireless On/OFF
thermostat)
A7P
Pump driver PCB (only for EHBH/X04+08
and EHVH/X04+08)
A8P
*
Demand PCB
B1L
Flow sensor
BSK
*
Solar pump station relay
DS1(A8P)
*
DIP switch
E1H
Backup heater element (1 kW)
E2H
Backup heater element (2 kW)
E3H
Backup heater element (3 kW)
E4H
*
Booster heater (3 kW)
F1B
Overcurrent fuse backup heater
F2B
*
Overcurrent fuse booster heater
F1T
Thermal fuse backup heater
F1U, F2U
*
Fuse 5 A 250 V for digital I/O PCB
FU1
Fuse T 6.3 A 250 V for PCB
PHC1
*
Optocoupler input circuit
K1M, K2M
Contactor backup heater
K3M
*
Contactor booster heater
K5M
Safety contactor backup heater (only for
*9W)
K*R
Relay on PCB
M1P
Main supply pump
M2P
#
Domestic hot water pump
Installer reference guide
90
Only for preferential kWh rate power supply (outdoor)
Use normal kWh rate power supply for indoor unit
L
N
1N~, 50 Hz
230 V AC
OUTDOOR
Normal kWh rate
Q2DI
UNIT
power supply
1 2 3
X1M
1
2
3
X1M
X6YA
30 31
X2M
X6YB
X6Y
1
A1P
X1A:3
X17A:1
FU1
3
A3P
X2M
5
1
7
2
R1T
X24A:1
-t°
1a
3
2a
5
3
7
4
K4R
32
X14A:1
33
3
A4P
L
N
PC
A3P
X2A:1
3 5
X1M
R1H
R2T
X2M.3
%H20
X2M.4
-t°
only for ext.
sensor
X2M
5 6 7
(floor or
ambient)
M2S
3 4
5
6
NO valve
3
M2S
NC valve
3
Shut-off valve
Only for normal power supply (standard)
Indoor unit supplied from outdoor
OUTDOOR
UNIT
30
31
X2M
1 2 3
X1M
TR1
X6YB
1
2
3
X1M
X6YA
X6Y
1
1
X19A:1 3 5
X26A:1 2 X31A:1 3
X3A:1
KPR
FU2
X20A:1
3 5
X25A:1
2
3
4
5
6
X16A:5
X2M.28
X2M
8
9
8a
10
X2A:4
3
2
1
X1A:1
3
Switch box
8
T1R
NO
N
X3A:1
2
3
4
8
NC
M3S
3 wire type
(SPDT)
MS
only for floor
M1P
3~
standing model
8
only for *16*
N
L
M3S
3 wire type
MS
M1P
(SPST)
3~
only for domestic
hot water option
only for *04* and *08*
M2S
#
M3S
(*) 3-way valve for floor heating/domestic hot
Q1DI, Q2DI
#
Q1L
Q2L
*
R1T
R1T (A2P)
R1T (A3P)
*
R2T
R2T
*
R3T
R4T
R5T
(*) Domestic hot water thermistor
R6T
*
R1H (A3P)
*
S1S
#
S2S
#
S3S
#
S6S~S9S
#
SS1 (A4P)
*
T1R (A7P)
TR1
X*M
X*Y
* = Optional
(*) = Standard for EHVH/X, optional for EHBH/X
# = Field supply
BLK
ERLQ004~008CAV3 + EHVH/X04+08S18CA + EHVH/X08S26CA
11
31
3/21/31
Q1L
32
12
A1
Q2L
4/22/32
K5M
A2
X2M
29
21
X9M
14 13
only for
domestic hot
water option
only for *9W
3
X21A:1
3
E
K6R
K1R
K2R
K3R
3
1
X15A:1 3
X11A:3 1
X12A:3 1
X13A:3 1
A1
A1
A1
K3M
A2
A2
A2
Switch
X2M
34
35
5
box
K1M
K2M
only for domestic hot
water tank option
DHW pump output
Max. load:
M
A7P
2 A (inrush) - 230 V AC
1~
1 A (continuous)
M2P
9
DHW pump
9
4D077028 page 4
2-way valve for cooling mode
water
Earth leakage circuit breaker
Thermal protector backup heater
Thermal protector booster heater
Outlet water heat exchanger thermistor
Ambient sensor user interface
Ambient sensor On/OFF thermostat
Outlet backup heater thermistor
External sensor (floor or ambient)
Refrigerant liquid side thermistor
Inlet water thermistor
External indoor or outdoor ambient
thermistor
Humidity sensor
Preferential kWh rate power supply contact
Electrical meter pulse input 1
Electrical meter pulse input 2
Digital power limitation inputs
Selector switch
Rectifier bridge (only for EHBH/X04+08 and
EHVH/X04+08)
Power supply transformer
Terminal strip
Connector
Black
Daikin Altherma - Low Temperature Split
4P313775-1C – 2012.11
domestic hot
water tank
only for
enamel
tank
option
X2M.21
14
13
X2M.13a
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