For Your Safety Read Before Operating; Operating Instructions - Viessmann Vitogas 050 Rs Series Installation & Service Manual

Lighting instructions – intermittent pilot ignition system:

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
Boiler and piping system must be filled with water and purged of all air before
operating boiler. All installation requirements and safety inspections must be
completed before operating boiler.
A. This appliance is equipped with an ignition device
which automatically lights the pilot. Do not try to light
the pilot by hand.
B. BEFORE OPERATING smell all around the boiler area
for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the
floor.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not use any
phone in your building.
Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
1. STOP! Read the safety information above on this
page.
2. Set the thermostat or other operating control to the
lowest setting.
3. Turn off all electric power to the boiler.
4. This appliance is equipped with an ignition device
which automatically lights the pilot. Do not try to light
the pilot by hand.
Manual gas shut-off valve
Open
1. Set the thermostat or other operating control to
lowest setting.
2. Turn off all electric power to the boiler if service is to
be performed.
14

OPERATING INSTRUCTIONS

Closed
TO TURN OFF GAS TO BOILER
If you cannot reach your gas supplier, call the fire
department.
C. Use only your hand to turn lever operated manual gas
shut-off valves. If the lever handle will not turn by
hand, call a qualified service technician or the gas
supplier.
D. Do not use this appliance if any part has been under
water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.
5. Remove control access panel.
6. Turn all manual gas shut-off valves to closed
position.
7. Wait five (5) minutes to clear out any gas. Then smell
for gas, including near the floor. If you smell gas,
STOP! Follow "B" in the safety information above. If
you don't smell gas, go to the next step.
8. Turn all manual gas shut-off valves to the open
position.
9. Replace control access panel.
10. Turn on all electric power to the boiler.
11. Set thermostat or other operating control to desired
setting.
12. If the boiler will not operate, follow the instructions
"To Turn Off Gas To Boiler" and call your service
technician or gas supplier.
3. Remove control access panel.
4. Turn all manual gas shut-off valves to closed
position.
5. Replace control access panel.