Daikin Europe NV
55
10.1
Electrical diagram EKOMB22AAV1, EKOMB28AAV1 & EKOMB33AAV1
A
Earth connection exchanger
F
Fuse (3.15 A T)
P1
CH pump
S3
DHW sensor
B
Ignition hood
G
Gas block + ignition module
R
Resistance
S5
Flow sensor
C Boiler controller
I
Ignition/ionization pin
S1
Leaving water sensor
S7
CH water pressure sensor
E
Earth connections
M
Mains electricity supply
S2
Return sensor
V
Fan
Connector X4
24V=
4-5
External energy saving switch (also see par. 5.3.1)
6-7
On/off room thermostat
(0.1A-24Vdc)
and/or frost thermostat
8-9
Outdoor sensor
(12 kOhm / 25°C)
11-12
OpenTherm room thermostat
(6-7 should be open)
Connector X2
230V
~
2-4
Mains supply 230 V (2 = L (brown), 4 = N (blue))
7-8
CH pump
(8 = L (brown), 7 = N (blue)
3-5-6
Shut-off valve underfloor heating or MIT
(3 = L (brown), 5 = Switch (black), 6 = N (blue)
(e.g. VC4013 Honeywell 230V~)
3-5-6
Three-way valve (3=L (brown), 5=switch (black), 6=N (blue)) (VC4013 Honeywell 230V~).
Connector X5
Computer interface
10.2
NTC resistances
NTC 12 kOhm
T [°C]
R [ohm]
T [°C]
R [ohm]
T [°C]
R [ohm]
T [°C]
R [ohm]
-15
76020
15
18300
45
5522
75
1994
-10
58880
20
14770
50
4609
80
1717
-5
45950
25
12000
55
3863
85
1467
0
36130
30
9805
60
3253
90
1266
5
28600
35
8055
65
2752
95
1096
10
22800
40
6653
70
2337
100
952
Summary of Contents for EKOMB22AAV1
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