Lighting Instructions - UTICA BOILERS MGB50 Installation, Operation & Maintenance Manual

If you do not follow these instructions exactly,
a fire or explosion may result, causing
property damage, personal injury or loss of
!
life.
Before any procedures are attempted on this
appliance, determine if ignition system is
electric or standing pilot. If you are uncertain,
contact manufacturer before proceeding.
Before lighting any type of pilot burner
(standing or intermittent), make certain the
hot water boiler and system are full of water
!
to minimum pressure of 12 psi in the system,
and also verify system is vented of air. Set
operating control of thermostat to "below"
normal setting. Refer to following appropriate
lighting instruction.
LIGHTING PROCEDURE FOR BOILER WITH
INTERMITTENT PILOT SYSTEM
For Your Safety, Read Before Operating!!
A. This appliance is equipped with an ignition device which
automatically lights the pilot. Do not try to light the
appliance by hand.
B. Before operating, smell all around the appliance 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.
• If you cannot reach your gas supplier, call
the fire department.
C. Use only your hand to push in or turn the gas control
knob. Never use tools. If the knob will not push in or
turn by hand, don't try to repair it. Call a qualified
service technician. Force or attempted repair may
result in a fire or explosion.

lIghtIng InstructIons

WARNING
WARNING
CAUTION
D. Do not use this appliance if any part has been under
water. Immediately call a qualified service technician
to inspect appliance and to replace any part of control
system and any gas control which has been under
water.
OPERATING INSTRUCTIONS FOR INTERMITTENT PI-
LOT SYSTEM
STOP! Read the safety information to the left.
1.
Set the thermostat to lowest setting.
2.
Turn off all electric power to the appliance.
3.
This appliance is equipped with an ignition device which
4.
automatically lights the pilot. Do not try to light the
pilot by hand.
Figure 15 - Intermittent Pilot
Turn gas control knob clockwise
5.
Wait (5) minutes to clear out any gas. If you then smell
6.
gas, STOP! Follow "What To Do If You Smell Gas" in the
safety information to the left. If you don't smell gas, go
on to the next step.
Turn gas control knob counterclockwise
7.
Turn on all electric power to the appliance.
8.
Set thermostat to desired setting.
9.
If the appliance will not operate, follow the instructions
10.
"To Turn Off Gas To Appliance" on next page, and
call a qualified service technician or your gas supplier.
17
to "OFF."
to "ON."