Williams 2503532 Check GAS Type, Installation Items, Locating Furnace, Minimum Clearances

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THE COMFORT PRODUCTS PEOPLE

DIRECT-VENT NATURAL GAS HEATER

INSTALLATION

Mounting hardware needed to mount fur- nace into wall is included with the furnace. No venting material is needed. You must furnish tools and all gas piping from the gas source to the furnace inlet.

WARNING: A qualified ser- vice person must install furnace. Have service person inspect fur- nace before use and at least an- nually. Follow all local codes.

NOTICE: This furnace must be electrically grounded. Follow all local codes. In the absence of local codes, follow the National Electric Code, ANS/NFPA 70 (U.S.) or Canadian Electrical Code Part I-CSA C22.1 (Canada).

CHECK GAS TYPE

Use only natural gas. If your gas supply is not natural gas, do not install furnace. Call dealer where you bought furnace for proper type furnace.

INSTALLATION ITEMS

Before installing furnace, make sure you have all items below:

electric drill

drill bits

Phillips screwdriver

hammer

pipe wrench

stud locator or small finishing nails

equipment shutoff valve (supplied)

test gauge connection (see Figure 15, page 10)

piping (check local codes)

sealant (resistant to propane/LP gas)

ground joint union

sediment trap

tee joint

LOCATING FURNACE

This furnace is designed to be mounted in a wall that is 4 to 18 inches thick. You can also mount furnace in a window.

WARNING: Do not install fur- naceininteriorwallofbuilding.You must install furnace in exterior wall of building. Rear of furnace must extend into open, outside air. This lets poisonous exhaust gases ven- tilate to the outdoors.

WARNING: Turn off electrical circuits that pass through the wall where you are going to install the furnace.

WARNING: Maintain the mini- mum clearances shown in Figure

1.If you can, provide greater clear- ances from floor, ceiling, and joining wall.

WARNING: Due to high tem- peratures,neverinstallthefurnace:

in an inside wall

in a recreation vehicle

in a window recessed in a thick wall (creating an alcove)

in an alcove

behind a door or where an open doorwouldblocknormalairflow

as a fireplace insert

in high traffic areas

near furniture or draperies

in windy or drafty areas

CAUTION: If you install the furnace in a home garage, locate furnace where moving vehicle will not hit it.

Forconvenienceandefficiency,installfurnace:

where there is easy access for operation, inspection, and service

in a central location, near an electrical outlet

where there is adequate clearance around vents outside

Before installing furnace, inspect the wall, floor, and outside areas. Make sure there are no pipes, wiring, or anything else that would interfere with furnace installation. If you are installing thermostat in a wall, make sure there are no pipes or wiring in the hollow wall above the furnace. The thermostat wires will pass through this wall from the attic.

Minimum Clearances

Provide the following minimum clearances from furnace front cover to combustibles (as viewed from the front of furnace, see Figure 1):

Below Front Cover: 6 inches

Above Front Cover: 12 inches

Adjoining Wall: 12 inches

Front: 8 feet

Ceiling

12" Minimum

12" Minimum

Adjacent

Side Wall

6" Minimum

Finished Floor, Carpet, Tile, etc.

Figure 1 - Mounting Clearances as Viewed from Front of Furnace

The clearance between the cabinet and the wall it passes through is 0 inches.

Provide the following minimum clearances from furnace cabinet (portion of cabinet extending into outside air, as viewed from the rear of furnace) to obstructions:

Cabinet Back: 36 inches

Cabinet Sides: 6 inches

Cabinet Bottom: Must be high enough off the ground to prevent snow, water, leaves, or any other objects from block- ing vents.

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Contents For Your Safety OWNER’S Operation and Installation ManualFor Your Safety What to do if YOU Smell GAS Safety Information Product Features SpecificationsLocal Codes UnpackingInstallation Installation ItemsCheck GAS Type Locating FurnaceInstalling Thermostat Installing in Normal Frame WallInstalling in Masonry Wall Creating Wall Opening and Mounting FurnaceLocating Thermostat on Wall Routing Thermostat CableConnecting Furnace to Gas Supply at Front of Furnace Connecting to GAS SupplyMounting the Thermostat to Wall Connecting Furnace to Gas Supply at Rear of Furnace Removing Screws on Lower Flange 40,000 BTU/Hr Model ShownProviding Gas Piping to Furnace ExamplePressure Testing Gas Supply Piping System Checking GAS ConnectionsPressure Testing Furnace Gas Connections Performance CheckOperating Furnace For Your Safety Read Before LightingOperating Instructions Inspecting Burner Flame Normal Operating SequenceTo Turn OFF GAS To Furnace Thermostat Control OperationCleaning and Maintenance Troubleshooting Observed Problem Possible Cause RemedyIgnition Failures Observed Problem Possible Cause Wire and wire connections at probe Wiring Diagrams Replacement Service HintsTechnical Service PartsIllustrated Parts List Cabinet Assembly 25,000 BTU/HR ModelCabinet Assembly 40,000 BTU/HR Model Combustion Chamber Assembly 25,000 BTU/HR Model Combustion Chamber Assembly 40,000 BTU/HR Model Burner Assembly 25,000 BTU/HR Model Burner Assembly 40,000 BTU/HR Model Blower Assembly 25,000 BTU/HR Model Blower Assembly 40,000 BTU/HR Model Warranty Information Limited Warranty Williams GAS Wall Furnace

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