Start-Up; Setting The Immersion Heater Thermostat - Vaillant uniSTOR VIH RW GB BES Series Installation And Maintenance Instructions Manual

5.3.7 Connecting the control
Condition: eBUS
The thermal cut-out for the primary circuit is not used when
connecting an eBUS unit.
Condition: 230 V control
If you use a 230 V control from a third-party manufacturer,
connect the thermal cut-out (2) and (3) for the primary circuit
to the motorised valve to isolate the heat source in the event
of a fault in the motorised valve.
5.3.8 Electric connection for the primary circuit
1. Connect the thermostat for the primary circuit and the
thermal cut-out.
–
Diameter of the cable: 1.5 mm²
Condition: S plan
L
1 3
2 4
70
60 50
▶
Connect the assembly.
0020221300_04 uniSTOR HP Installation and maintenance instructions
N
L
1 3
2 4
SL 8L 8L 8
2
40 70 40
60 50
1
3
2
4
4
1
2
Condition: Y plan
L
1 3
2 4
70
60 50
▶
Connect the plug (1) to the electronics box.
5.3.9 Establishing the electrical connection for the
motorised valve
▶
Establish the electrical connection for the motorised
valve.
6

Start-up

6.1

Setting the immersion heater thermostat

1 3
2 4
1
70 40
60 50
The domestic hot water temperature is controlled via the
immersion heater thermostat (1).
Start-up 6
N
L
1 3
2 4
1
SL 8L 8L 8
2
40 70 40
60 50
1 3
2
4
4
1
2
1 3
2 4
70 40
60 50
13