Vaillant 0010019228, Installation And Maintenance Instructions Manual

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5 Installation
12
Installation and maintenance instructions uniSTOR 0020235300_03
5.3.2 Thermostats
70
60 50
40 70
60 50
40
1 3
2 4
1 3
2 4
1 2
3 4
1 Thermal cut-out and re-
set knob for the immer-
sion heater
2 Thermal cut-out and re-
set knob for the primary
circuit
3 Setting the temperature
of the primary circuit
4 Immersion heater tem-
perature control
If you are using a control from another brand, use the op-
tional cylinder thermostats.
The thermostat connections make it possible to install a con-
nection box in addition to the Vaillant control.
5.3.3 Cable route
▶
Use the cable ducts that are included in the scope of
delivery for the cylinder in the electronics box.
5.3.4 Connecting the immersion heater to the
power supply
Note
Relay and switch must be rated to maximum sup-
ply amps.
From Vaillant heat pump control (see appropriate
schematic for wiring configuration).
L
L
N
1
N
L
1 2 3 4 5
2
230VAC
32A (500L)
40A (800L)
L N
2
1
2 1
1 2
3
4
1 SPDT relay
2 Switch for immersion
heater
3 SPUR fuse
4 Immersion heater
1. Remove the cover for the electrics on the cylinder.
2. Install a separate power supply for the immersion
heater in accordance with the applicable standards.
3. Use heat-resistant cables for the immersion heater con-
nection.
–
Cable diameter on a 5 kW heating coil: 4 mm
²
–
Cable diameter on a 7.5 kW heating coil: 6 mm
²
4. Connect the thermal cut-out to the mains power supply
using a double-pole isolator with a contact opening of at
least 3 mm at both poles.
5. Protect the electrical circuit using a fuse.
–
Fuse on a 5 kW heating coil: 23 A
–
Fuse on a 7.5 kW heating coil: Consult the instruc-
tions for the accessories.
6. Connect the immersion heater as shown in the basic
diagram. Consult the instructions for the accessories in
order to connect the 7.5 kW heating coil.
7. Attach the cover for the electrics on the cylinder.
5.3.5 Electrical connection of the temperature
sensor
Condition : With a multi-functional module or control
▶
Connect the temperature sensor to the multi-functional
module or the control; to do this, see the instructions for
the control or multi-functional module.