Gas Boiler; Components: Gas Boiler; Wiring Diagram: Gas Boiler - Daikin Altherma EJHA04AAV3 Installer's Reference Manual

17.2

Gas boiler

17.2.1

Components: Gas boiler

m
j
k
d
r
e
h
p
i
o
n
q
a Space heating pump
b Gas valve
c Boiler control panel
d Sensor S1 (in)
e Sensor S2 (out)
f Fan
g Flow sensor
h Space heating pressure sensor
i Mains lead 230 V AC with earthed plug
j Manual air bleed
k Sight glass
l Air supply cap (use ONLY when using twin pipe flue
system)
m Flue pipe adapter (use ONLY in combination with the
accompanying elbow in flue sets)
n Connection block/terminal strip X4
o Condensate drain pan
p Domestic Hot water sensor S3
q Condensate S3
r Heat exchanger
s Operating panel and read-out
t Ionisation/ignition electrode
u Position of data plate
Bottom view
a b
a Space heating outlet
b Instant domestic hot water outlet (not applicable for
Switzerland)
c Gas inlet
EJHA04AAV3 + EHY2KOMB28+32AA
Daikin Altherma Hybrid hydrosplit heat pump
4P531180-1 – 2018.06
c d e
d Instant domestic hot water inlet (not applicable for
l Switzerland)
t
e Space heating inlet
17.2.2

Wiring diagram: Gas boiler

1
4
Current loop
module
1
3
f
1
6
8
g
c
b
1
5
a
1
5
1
7
6
8 7 3
u
8 4
c
a Earth connection heat exchanger
s
b Spark cover
c Boiler controller
d Earth lips boiler controller
e Fuse (3.15 A T)
f Gas valve and ignition unit
g Ignition/ionization pin
h Main voltage
i Fan
P1 Space heating pump
S1 Supply sensor
S2 Return sensor
S3 Domestic hot water sensor (not applicable for Switzerland)
S5 Flow sensor
S7 Space heating water pressure sensor
S8 Flow sensor
X2 Main power supply (2=l (BRN), 4=N (BLU))
X3 Power supply fan (230 V)
X5 Boiler communication cable
X7 Sensor connection
17 Technical data
h
i
S8
a
d
3,15 AT
e
Installer reference guide
b
g
f
99