Electrical Installation; Cableway And Passage; Start Up; Filling The Heat Pump Circuit - Vaillant VWZ MWT 150 Installation Instructions And Instructions For Use

4.4

Electrical Installation

Danger!
e
Risk of electric shock due to an
improper electrical connection!
Improper electrical connection can
cause electric shock or might
negatively affect the operational
safety of the product and might
cause material damage.
The electrical connection of the
►
product must be carried out only
by a suitably qualified person.
1
30 mm max.
1 Electrical wires
4.4.1 Connection of the pump to the control
box
The external wiring to be grounded. The polarity must be
correct and consistent with the standards.
► Connect the appliance in accordance with the live and
neutral connections.
The connecting cables between the electrical panel and the
appliance must be :
- adapted to a fi xed installation,
- Electrical wires with adapated section linked to the power
of the appliance.
Component
Temperature probe cable
passage
0020166669_04 - 03/15 - Vaillant
2
2 Insulation
Supply voltage
(mini section of cable)
230 V (3 X 0.5 mm²)
4.5

Cableway and passage

i
Notes
The cables must pass through the openings
provided for this purpose.
1
2
1 Passage for power
cables and relay
command cables
5

Start up

► Check the electrical and water installation.
► Check all connections for leaks.
► Drain the appliance.
► Fill the heating installation.
► Replace the power.
5.1

Filling the heat pump circuit

A
► Connect the fi ller pump to tap (B).
► Connect the end of a pipe to tap (C).
► Insert the other end of the pipe into a suitable container
to capture any glycol discharged while bleeding the
circuit.
► Close the main tap (A).
► Open taps (B et C).
► Fill the heat pump circuit.
► Close taps (B) and (C) when the circuit is full and bled.
START UP
2 Pump cable
B
C
21