Limiting The Range Of Temperature Settings; Taking The System Out Of Service - Vaillant VEN 5/5 Serie Instructions D'utilisation Et D'installation

5 Initial start-up
1
Fig. 5.3 Temperature selector
Fig. 5.3 Sélecteur de température
Afb. 5.3 Temperatuurkiezer
32
a b c
d e
f g

5.3 Limiting the range of temperature settings

The turning range of the temperature selector can be
limited to prevent energy-saving setting "E" (approx.
60 °C) or the "Warm" setting (approx. 40 °C) being
exceeded.
The temperature-setting range must only be adjusted
by a qualified service installer, proceeding as follows:
Pull the temperature selector knob (1) off.
Pull the limiting ring (b) off the head of the
temperature selector knob (1).
Rotate the limiting ring (b) and align it with the
groove (d) that corresponds to a temperature-setting
limit of 40 °C or the groove (e) for 60 °C. Push the
ring into the groove and onto the plate (a) of the
temperature selector (1).
Push the temperature selector knob (1) and limiting
ring (b) back into position, while ensuring that the
limiting plate (f) lies inside the recess (g) in the
regulator spindle (c).
Fig. 5.3: Key
1 Temperature selector
a Cam
b Limiting ring
c Regulating spindle
d Groove (40 °C)
e Groove (60 °C)
f Limiting cam
g Recess

5.4 Taking the system out of service

If the VEN electric storage water heater is to remain out
of service – in an unheated room – for an extended
period, it can be drained of water. Do not forget to
unplug the unit from the mains power supply before
draining it.
VEN 5/5 classic; VEN 5/5 exclusiv