Initial Start-Up And Re-Starting The Heating System; Shutting Down The Heating System - Viessmann Vitodens 200 Operating Instructions And User's Information Manual

Operation

Initial Start-up and Re-starting the Heating System

Shutting Down the Heating System

12
Initial start-up and adjustment of the control unit to local
conditions and the structural characteristics of your
building must be performed by your heating contractor.
We recommend that you contact your heating contractor
before re-starting the heating system if it has been shut
down for a long period of time.
To start up the system
1. Check heating system pressure on the pressure
gauge 1.
Minimum system pressure 12 psig.
If the needle of the pressure gauge is below 12 psig,
the system pressure is too low, in which case you
must contact your heating contractor.
2. Open flue operation only:
Check that the ventilation facilities in the boiler room
are open and are not obstructed.
3. Open the gas shutoff valve 2 (field supplied).
4. Switch on line voltage (e.g. at separate fuse/circuit
breaker).
5. Switch on the heating system on/off switch 3.
Your heating system is now ready for operation.
In case you are not intending to use your heating system
for a period of time, e.g. during your summer holidays,
switch your heating system to standby operation (see
section entitled "Selecting a heating program", page 10).
If you do not want to use your heating system for a
longer period of time (several months), you should shut it
down. We advise you to contact your heating contractor
before shutting down the heating system for longer
periods of time.
Your heating contractor will then take any required action/
precautions, e.g. providing freeze-up protection of the
system or safeguarding the heat exchanger surfaces.
To shut down the heating system
1. Switch off the heating system on/off switch.
2. Close gas shutoff valve and secure against
unintentional opening.
3. Switch off line voltage (e.g. at separate fuse/
circuit breaker). The power supply to the system is
now switched off. There is no freeze-up protection.
All settings of the control unit still remain intact.
Vitodens 200, WB2 Operating