8
Wiring diagrams
8 - 2
Control Circuit
EGSAH-D9W
EGSAX-D9W
EGSAX-D9WG
8
Digital I/O PCB
A4P
SS1
CN2:1
ON
OFF
2
3
F1U
4
5
KCR
6
KHUR
PHC1
X1 X2
Y2
Y3
Y4
Alarm output
X2M
Max. load
0.3 A - 250 V AC
A1P/X17A.7
21
Min. load
20 mA - 5 V DC
A1P/X2A.1
14a
A3P
1 2
L N
Ext. heat source
Max. load 0.3 A - 250 V AC
Min. load 20 mA - 5 V DC
Options: ext. heat source output, alarm output
y for solar pump station
(Only EHBH*), alarm output
X2M
A1P/X17A.7
21
A1P/X2A.1
14a
4
Space C/H
On/OFF output
Max. load 0.3 A - 250 V AC
Min. load 20 mA - 5 V DC
Options: ON/OFF output
only if no EKBPHT*
Only for digital I/O PCB option
t
EGSAH-D9W
EGSAX-D9W
EGSAX-D9WG
Switch box
X77A
L1R
HR1
HR3
HR4
HR2
34
X6Y
X1YA
Switch box
X1Y
A4P
CN2
CN1
1
3
1
2
F1U
3
F2U
4
5
6
Z5C
KHR
KHUR
N=2
YC
Y1
Y2
Alarm output
Max. load
0.3 A - 250 V AC
Switch box
X5M
10 9 6 5 4 3
1
Preferential kWh
Electric pulse meter input: 12 V DC pulse
rate power supply
detection (voltage supplied by PCB)
contact: 16 V DC
detection (voltage
supplied by PCB)
for preferential kWh
rate power supply
Space C/H
1
ON/OFF output
Max. load 0.3 A - 250 V AC
Q4L
Safety thermostat
contact: 16 V DC
detection (voltage
supplied by PCB)
for safety
thermostat
1 2 3
Z2F
X803Y
1
2
3
X803YA
Z10C
N=2
X803A
LA
NA
PE
1 3 5
1
2
F1U
1 2 3 4 5 6 7
X106A
U
V
W
Z9C
N=4
M1C MS
3~
M
M4P
1 ~
Brine pump
Remote user
interface
A2P
Ethernet
B1PR
B1PW
R1T
LAN adapter
A15P
-t°
P1 P2
X7Y
1
2 3
4
1
2 3
X4A
X3A
X5M
11 12
P1 P2
9
15 16
Z7C N=1
Z5C
N=2
X60A
X18A
1
2 3 4
1 2
X33A
1
2
3
4
5
6
X40A
1
2
3
4
5
6
7
8
1 2 3 4 5 6
X85A
X80A
1 2 3 4 5 6 7 8 9 10 11 12
DS1
ON
OFF
X801M 1 2 3 4 5
1 2 3 4
Power limitation digital inputs: 12
V DC / 12 mA detection (voltage
supplied by PCB)
Only for demand PCB option
-t°
-t°
-t°
-t°
-t°
R6T
R2T
R3T
R4T
R5T
X13A
X12A
1 2
1 2 3 4 5 6 7 8
K2R
1 2 3
1 2
1 2 3 4 5 6
X28A
X25A
X21A
Y1S
M
NO valve
Daikin Altherma ground source heat pump
A16P/X1A.1
A11P
A16P/X1A.3
X1
1 2 3 4
PSU
PIP2
R6T
1 2
1
X20
-t°
2
Z12C N=10
X5M
7 8
Z5C
N=2
A1P
X5A
X48A
X22A
1
1 2
1 2
2
X6A
1
2
X7A
1
2
X8A
1
2
X9A
1
2
X4A
1
2
3
4
A8P
-t°
R1T
X12Y
1
2
Z16C N=7
C2
X11YC
1
2
3
X11YB
C3 C4
Z5F
A7P
X11A
1 2
3
X32A
S1PH
1
2
X17A
1
2
3
1 2
1 2
4
X804A
X805A
Y1E
EGSAH-D9W / EGSAX-D9W / EGSAX-D9WG
ext. indoor ambient
sensor option
R1T
10
1
11
2
-t°
X5Y
X1Y
X1YA
X5YA
R2T
-t°
R3T
8
1
1
2
-t°
X1Y
X1YA
X7Y
X7YA
R4T
4
1
5
2
-t°
X1Y
X1YA
X10Y
X10YA
R5T
-t°
1
2
3
4
X9Y
R8T
1
-t°
2
X8Y
X8YA
4D116863E
P>
Q1L
X31YA
X31Y
1
2
3
4
Z17C
N=2
4D116863E