Switching Off The Boiler Without Frost Protection Monitoring; Switching On The Boiler - Viessmann VITODENS 100-W B1HE Operating Instructions Manual

Switching On and Off

Switching Off the Boiler Without Frost Protection Monitoring

Switching On the Boiler

A ON/OFF switch
28
Vitodens 100-W B1HE/B1KE Operating
No central heating
No DHW heating
Frost protection for the boiler and the DHW tank is
not active.
1. Turn off the ON/OFF switch.
2. Close the gas shut-off valve and safeguard against
unauthorized reopening.
IMPORTANT
If outside temperatures of below 37°F (3°C) are expected,
take appropriate measures to protect the system from frost.
If necessary, contact your contractor.
Note: As they are not being supplied with power, the
circulation pumps and diverter valves may seize up.
If your system has been shut down for a
prolonged period, you may need to reset the
"Time" and "Date": See page 19.
Ask your contractor about the following:
Required system pressure
Position of ventilation apertures in the installation
room, if applicable
1. Open the gas shut-off valve.
2. Check whether the power supply to your system is
switched on, e.g. at a separate MCB/fuse.
Note: The power supply to the system was switched on
by your heating contractor during commissioning.
If possible, do not interrupt the power supply, even
when the system is in standby mode.
3. Turn on the ON/OFF switch A.
After a short while, the home screen is shown on
the display.
The Lightguide is illuminated constantly.
Your system and, if installed, your remote controls
are ready for operation.
4. Check the system pressure at the pressure gauge.
If the displayed pressure is below 12 psi (0.8 bar),
top up the water or notify your heating contractor.