Daikin Altherma C Gas W EHOB42ABV1H Instructions D'installation page 53

10.3 Electrical diagram
A
Earth connection exchanger
B
Ignition cap
C Boiler controller
E Earth connections
Connector X4
5 -
24V=
6-7
8-9
9-10
11-12
Connector X2
2-4
~
230V
3-6
7-8
3-5-6
Connector X5
Daikin Europe NV
F
Fuse (3.15 A T)
G
Gas block + ignition module
I Ignition/ionization pin
M Mains electricity supply
PWM control CH-pump. (5= PWM signal (red), E=earth)
On/off room thermostat
(0.1A-24Vdc)
Outdoor sensor
(12 kOhm / 25°C)
Tank sensor (remove through-connection)
OpenTherm room thermostat
(6-7 should be open)
Mains supply 230 V (2 = L (brown), 4 = N (blue))
Electricity supply for fan (230 V, for EHOB42ABV1H only))
CH pump
(8 = L (brown), 7 = N (blue))
Three-way valve for external tank
(e.g. EK3WV1AA)
Computer interface
P1
CH pump
V
Fan
S1 Flow temperature sensor
S2 Return temperature sensor
and/or frost thermostat
(3 = L (brown), 5 = Switch (black), 6 = N (blue))
54