Start-Up/Standby/Shutdown - Viessmann Vitotronic 300-K Operating Instructions Manual

Vitotronic 200 and 300-K Operating

Start-up/Standby/Shutdown

Starting the heating system
1. Check the heating system pressure at the pressure
gauge. The system pressure is too low if the indicator
points to the area below 15 psi or is below the red
band. In this case, top up with water or notify your
local heating contractor.
2. Check that the ventilation apertures of the installation
room are open and unrestricted.
Note: With open flue operation, the combustion air is
drawn from the installation room.
3. Open the gas shut-off valve.
4. Switch ON the power supply, e.g. at a separate
MCB/fuse or a main electrical disconnect.
5. Switch ON the ON/OFF switches at all Vitotronic 200
and at the Vitotronic 300-K (see chapter "Controls").
After a short time, the following is shown on the
display:
H Vitotronic 200: the standard display (see page 8)
H Vitotronic 300-K: the standard menu (see page 13)
The green ON indicator illuminates.
Your heating system and, if installed, your remote
control units are now ready to operate.
Note: On every Vitotronic 200, "
otherwise the Vitotronic 300-K cannot use the
corresponding boiler to produce heat.
Placing the heating system in standby with frost protection
monitoring
At the Vitotronic 300-K, select the heating program
"Standby mode" for every heating circuit.
H No central heating.
H No DHW heating.
H Frost protection for the heating circuits and the DHW
tank is active.
Extended menu
1.
2. "Heating"
3. Select the heating circuit, if necessary (see page 16).
4. "Heating program"
5. "Standby mode" (frost protection monitoring)
" must be selected,
Placing each boiler in standby with frost protection
monitoring
At the relevant Vitotronic 200, press the following keys:
1. for settings; "
w
2. OK to confirm; "9
w
3. OK to confirm; "
4.
until "9" flashes.
⊳
5. OK to confirm.
Note: The circulation pumps are briefly started every 24
hours to prevent them from seizing up.
To end the heating program "Standby mode" select
another heating program.
Shutting down the heating system without frost
protection monitoring
1. Switch OFF the ON/OFF switches at all Vitotronic
200 and Vitotronic 300-K (see chapter "Controls").
2. Close the gas shut-off valve.
3. Isolate the heating system from its main power
supply, e.g. at a separate MCB/fuse or a mains
isolator.
4. Where outside temperatures of below 37.5° F (3° C)
are anticipated, please take suitable measures to
protect the heating system against frost. If necessary,
contact your heating contractor.
Information on a prolonged shutdown
H Circulation pumps may seize up as they are not supplied
with power.
H Vitotronic 300-K:
It may be necessary to reset the date and time
(see page 26).
Central Heating
" flashes.
" flashes.
" flashes.
15