Vaillant VRC 630, Operating Manual

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~ 40 mm
4,5 - 10 mm
Fig. 4.7 DCF receiver cable connection
Unfasten the cap nut ( 2 ) slightly and push the con-
necting cable through the cable entry from below.
The electrical installation is carried out as described
in Chapter 5.4.
Re-tighten the cap nut (
2 ). The packing in the cable
entry is matched to the diameter of the cable used
(Cable diameter: 4.5 mm to 10 mm).
Lay the gasket between the wall socket and the hou-
sing cover.
Push the housing cover on to the wall socket until it
clicks in position.
Normally, the synchronisation time is approx. 5 minutes
but, depending on the local and structural conditions as
well as the weather, can take up to 20 minutes.
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4.8.4 Fitting the VRC 693 external sensor
This equipment may only be opened by a suitably quali-
fied heating engineer and installed as shown in the dia-
grams. The current safety regulations and the installa-
tion instructions for the boiler and the heating control-
ler must be observed.
b
Caution!
Material damage caused by improper
installation!
Incorrect fitting can cause damage to the unit
and/or to the wall of the building, e.g. from
dampness.
Observe the cable routing described and
the correct installation position of the
external sensor.
Drill the wall penetration with a slope to
the outside.
Run the connecting cable with a loop to
catch drips.
Pay attention to the sealing of the DCF
external sensor.
2/3
1/3
>1 m
N, NW
Fig. 4.8 Installation location for the VRC 693 external tempe-
rature sensor
It can be installed either in or on the wall, depending on
the accessibility of the location.
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Installation Instructions VRC 630 0020095108_00
Assembly 4