Commissioning Checklist - Vaillant VWZ MPS 40 System Installation Instructions

Work
4 Observe the position of the VRC 700
5 Check the brine circuit for leak-tightness
6 Insulate the brine pipes in the house so that they are vapour-diffu-
sion-tight
7 Use cold pipe clips to install the brine pipes in the house
8 Use the correct brine fluid
9 Use the correct mixing ratio of monoethylene glycol to water
10 Use a refractometer to check the mixing ratio
11 Choke the output of the filling pump
12 Sufficiently dimension the gas-fired boiler's expansion vessel for the
heating circuit
13 Connect the heat pump via a separately fused plug socket
14 Use connection terminals when connecting multiple conductors
15 Install a bus coupler in the VR 32 in the gas-fired boiler
17 Check all cable connections for tensile strength
16 Visually check all cable connections for damage
3

Commissioning checklist

3.1 VC 146/5-5, VC 206/5-5, VC 266/5-5
Work
1 Start the installation assistant
Language
2
3 Filling mode: 3-way valve is in mid-position
4 Purge program: Select circ. using +/- Heating circuit
5 Purge program: Select circ. using +/- DHW circuit
6 Target flow temp.
7 DHW temperature
8 Comfort mode
9 Heating partial load
10 Auxiliary relay
11 Accessory relay 1
12 Accessory relay 2
13 Contact details
14 End the installation assistant?
Menu → Installer level → Test programs → Check programs
15
16 P.01 and P.02
17 P.01 and P.02
0020257196_01 System installation instructions
Commissioning checklist 3
Comments/settings
1. in the heat pump's electronics box; the room tem-
perature sensor is deactivated
2. in the living room or main control room
Prevent condensation.
Prevent thermal bridges.
Monoethylene glycol, essential for fault-free operation.
3:7, efficient operation only when the defined mixing ratio
is used
Efficient operation only when the defined mixing ratio is
used
Reduce the penetration of air in the brine circuit.
No expansion vessel present in the heat pump.
Observe the connection conditions in accordance with
the data plate.
Prevent communication faults.
The gas-fired boiler is the second participant in the
eBUS.
Comments/settings
If it is not started automatically
Select
Filling mode, fill the installation to at least 0.1 MPa (1.0
bar) via the return line
the programme ends automatically
the programme ends automatically
75 °C, setting for the maximum target flow temperature
in heating mode
65 °C, setting for the maximum domestic hot water
temperature
Off
Auto
External pump, if present
Circulation pump
External pump, if present
Enter on the VRC 700
Yes
Check the gas connection pressure in accordance with
the installation instructions
Check the CO₂ content in accordance with the installa-
tion instructions
3