Vaillant eloBLOCK VE 14 EU I Series User Manual

Appendix
0020265768_01 eloBLOCK Installation and maintenance instructions 25
F.2 VE18 /14 EU I, VE21 /14 EU I wiring diagram
6
7
8
9
14
17
18
20
21
27
26
19
15
16
1
2
4
5
13
12
11
10
3
22232425
1 Connection terminal N
2 18 kW (3 x 6 kW), 21 kW (3 x 7 kW) immersion
heaters
3 Limit thermostat for underfloor heating (remove the
bridge when connecting)
4 Power supply – main connection block
5 Contactor 1
6 Power supply for external VR 40 module
7 Safety cut-out
8 Heating pump
9 Connection for 3-port diverter valve
10 RE 14 – relay for heating pump
11 RE 15 – 3-port diverter valve
12 RE 16 – relay for contactor
13 RE 13 – relay for two-stage pump (non-EU)
14 Cylinder temperature sensor
15 Cylinder thermostat
16 Output limiter
17 Room temperature control
18 eBUS connection
19 Pressure sensor
20 Temperature sensor
21 Signal connection for external VR 40 module
22 DCF 77
23 System temperature sensor
24 Outdoor temperature sensor
25 Circulation pump remote control
26 Contactor 2
27 User interface connection

Vaillant eloBLOCK VE 14 EU I Series Specifications

General

Brand	Vaillant
Model	eloBLOCK VE 14 EU I Series
Category	Boiler
Language	English