Connecting Hot And Cold Water Pipes; Connecting The Heating Flow And Heating Return - Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

5.3

Connecting hot and cold water pipes

a
Danger!
Risk of scalding and/or damage due to leak-
ing water!
Tension in the supply lines can result in leaks.
> Make sure there are no stresses in the sup-
ply lines when they are installed.
5
2
4
Fig. 5.2 Hot water and cold water connection
Flush all foreign matter from the mains supply before
connecting to the boiler.
> Connect the cold water service valve (1) to the cold
inlet water connection of the appliance with the
washer provided and tighten.
> Connect a 15 mm cold water inlet copper pipe (3) to
the cold water service valve (1) and tighten.
> Connect a 15 mm hot water outlet pipe (4) to the
outlet connection (5) of the appliance.
The Vaillant ecoTEC exclusive is set in the factory to a
nominal water quantity of 11.6 l/min. (38 kW unit) and
9.8 l/min. (32 kW unit).
Installation and maintenance instructions ecoTEC exclusive 0020017768_07
5.4
a
1
2
3
Fig. 5.3 Heating connection
Before connecting the heating circuit to the boiler, all
pipework and radiators must be thoroughly flushed to
remove any installation debris.
> Connect the central heating flow and return service
valves to the appliance.
> Connect the 22 mm copper pipe tails to the service
valves as shown in the illustration and tighten the
nuts.
> Connect the central heating pipework to the flow and
return tails.
Two additional tubes are supplied with the appliance for
top connection of the flow and return pipework within
the casing.
Connecting the heating flow and heating
return
Danger!
Risk of scalding and/or damage due to leak-
ing water!
Tension in the supply lines can result in leaks.
> Make sure there are no stresses in the sup-
ply lines when they are installed.
Installation 5
17