For Your Safety Read Before Operating; What To Do If You Smell Gas; To Turn Off Gas To The Appliance; Operating Instructions - Weil-McLain Series 2 User's Information Manual

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GAS FIRED WATER BOILER SERIES

Operating Instructions

FOR YOUR SAFETY READ BEFORE OPERATING

A. This appliance does not have a pilot. It is equipped with
an ignition device which automatically lights the burner.
Do not try to light the burner 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. See
below.
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone
in your building.
1. Stop! Read the safety information above.
This appliance is equipped with an ignition
device which automatically lights the burner.
Do not try to light the burner by hand.
2. Set room thermostat(s) to lowest setting.
Verify external manual gas valve is open
(valve handle parallel to gas piping).
3. Turn OFF POWER switch on the Ultra
control panel.
4. Rotate two thumb screws at bottom of access
door counterclockwise to release door.
5. Remove boiler access door.
6. Turn boiler manual gas valve knob
counterclockwise to open gas supply.
7. Smell for gas in the boiler enclosure. If you
smell gas, STOP! Follow "B" in the safety
information above. If you don't smell gas,
go to the next step.
1. Set room thermostats to lowest setting.
2. Turn off all electric power to the boiler if service is to be
performed. Turn OFF POWER switch on the Ultra
control panel.
Part number 550-100-027/0404
2 — User's Information Manual
If you do not follow these instructions exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.

WHAT TO DO IF YOU SMELL GAS

OPERATING INSTRUCTIONS
8. Turn ON POWER switch on the Ultra
control panel.
9. Set thermostat(s) to desired setting.
10. The Ultra control panel display left digit
will show a sequence of numbers (0, 1, 2,
etc.) that indicate boiler control sequence.
Digit 3 or 4 indicates boiler is firing.
Digit 0 means there is no call for heat (all
room thermostats and domestic water
heater satisfied).
11. If the appliance will not operate when
there is a call for heat and piping is not
hot, follow the instructions "To Turn Off
Gas To Appliance" below and call your
service technician or gas supplier.
12. Replace jacket front panel. Make sure
panel is seated firmly in place and all joints
are visually sealed. Then tighten the two
thumb screws at bottom of access door
firmly.

TO TURN OFF GAS TO THE APPLIANCE

C. Use only your hand to turn the gas control knob. Never
use tools. If the knob will not 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.
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.
• 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.
3. Close external manual gas cock (valve handle perpendicular
to gas piping). Remove boiler access door. Turn boiler
manual gas valve knob clockwise to close gas supply.
4. Replace boiler access door.
Boiler manual
gas valve
9