8 Electrical installation
24
Installation and maintenance instructions flexoTHERM exclusive 0020213395_00
8.5
Mains connection PCB
Note
The total current consumption of all connected external consumers (including X141, X143, X144, X145) must not
exceed 2.4 A.
1
3
5
2
6
7
4
8
9
23
22
25
24
12
11
14
15
16
17
19
20
18
21
10
1
[X102] Mains connection for internal auxiliary electric
heating
2
[X143] Well pump
3
[X120] Optional 230 V supply for protection anode
4
[X145] External auxiliary heating
5
[F1] F1 T 4A/250 V fuse (protects 230 V loads on
mains connection PCB)
6
Protective earth connection for the electronics box
7
[X101] Mains connection for compressor and 230
V electronics system
–
mains connection PCB (TB)
and controller PCB (HMU)
8
[X1A] 230 V supply for controller PCB
9
[X144] External 3-way valve
10
[X105] Connection for compressor with in-rush cur-
rent limiter
11
LED safety switch for compressor
