Introduction - Williams 3501522A Owner's Manual

INTRODUCTION

Please read our instructions before you install and use
your heater. This will help you obtain the full value from
this heater. If the answer to the problem is found within
this instruction manual, it could help you avoid needless
service costs.
BASIC DESCRIPTION
Always consult your local heating or plumbing inspector,
building department or gas company regarding
regulations, codes or ordinances which apply to the
installation of a vented room heater.
No electrical power is required unless furnace is equipped
with an optional blower accessory.
The efficiency rating of this appliance is a product thermal
efficiency rating determined under continuous operating
conditions and was determined independently of any
installation system.
Warmed air is discharged into the room in which the
heater is located. The heater contains a single multi-slot
gas burner.
WARNING: CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each appliance connected to the venting system being placed
into operation could result in carbon monoxide poisoning or death.
The following steps shall be followed for each appliance connected to the venting system being placed into
operation, while all other appliances connected to the venting system are not in operation:
1) Seal any unused openings in the venting system.
2) Inspect the venting system for proper size and
horizontal pitch, as required in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 or the Natural Gas
and Propane Installation Code, CSA B149.1 and
these instructions. Determine that there is no
blockage or restriction, leakage, corrosion and other
deficiencies which could cause an unsafe condition.
3) As far as practical, close all building doors and
windows and all doors between the space in which
the appliance(s) connected to the venting system
are located and other spaces of the building.
4) Close fireplace dampers.
5) Turn on clothes dryers and any appliance not
connected to the venting system. Turn on
any exhaust fans, such as range hoods and
bathroom exhausts, so they are operating at
maximum speed. Do not operate a summer
exhaust fan.
Combustion air is drawn in from the room where the
heater is located and is vented out of the heater vertically
through vent piping to a roof vent top. (Vent equipment
is not supplied with the heater).
The combustion chamber is built of heavy-gauge steel.
The heater cabinet is also constructed of heavy-gauge
steel and has a powder-coat paint finish.
The heater controls are located behind an access door
on the side of the heater. All models are equipped with
CSA/AGA listed gas valves and pilots.
The appliance is equipped with a vent safety shutoff
system, designed to protect against improper venting.
Operation of this room heater when not connected to
a properly installed and maintained venting system or
tampering with the vent safety shutoff system can result
in carbon monoxide (CO) poisoning and possible death.
This heater is design certified in accordance with
American National Standard & CSA Standard Z21.86 and
CSA 2.32 as a vented room heater and must be installed
according to these instructions.
6) Follow the lighting instructions. Place the appliance
being inspected into operation. Adjust the thermostat
so appliance is operating continuously.
7) Test for spillage from draft hood equipped appliances
at the draft hood relief opening after 5 minutes
of main burner operation. Use the flame of a match
or candle.
8) If improper venting is observed during any of the
above tests, the venting system must be corrected
in accordance with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 and/or Natural Gas and Propane
Installation Code, CSA B149.1.
9) After it has been determined that each appliance
connected to the venting system properly vents
when tested as outlined above, return doors, windows,
exhaust fans, fireplace dampers and any other
gas-fired burning appliance to their previous
conditions of use.
5
VENTED ROOM HEATERS