Williams 4003531, 2503531 Local Codes, Unpacking, Product Features, Specifications

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OWNER’S MANUAL

LOCAL CODES

Install and use furnace with care. Follow all local codes. In the absence of local codes, use the latest edition of the following:

•National Fuel Gas Code ANS Z223.1, also known as NFPA 54 * (USA)

•National Electric Code ANS/NFPA 70*

•CAN/CGA-B149[.1 or .2] Installation Codes** (Canada).

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

**Available from:

UNPACKING

1.Remove furnace from carton.

2.Remove all protective packaging ap- plied to furnace for shipment.

3.Remove the following items from carton:

•Hardware package containing four large screws, two small screws, and thermostat mounting plate

•Hardware package (thermostat and two screws)

•Equipment shutoff valve

If any of these items are missing, promptly inform dealer where you bought furnace.

4.Check furnace for any shipping damage. If furnace is damaged, promptly inform dealer where you bought furnace.

PRODUCT

FEATURES

HOT SURFACE IGNITOR

This furnace has an electronic ignitor. There is no standing pilot. No matches or batteries are required.

THERMOSTATIC HEAT CONTROL

The thermostat is temperature sensitive. It automatically turns the furnace on and off. This results in the greatest heating comfort. This can also result in lower gas bills.

LIMIT SWITCH

The limit switch shuts off the gas to the main burner if the furnace becomes too hot to operate safely.

Standards Council of Canada

350 Sparks Street

Ottawa, Ontario K1R 7S8

This furnace must be grounded when in- stalled. Follow all local codes. In the ab- sence of local codes, refer to the National Electrical Code ANS/NFPA No. 70 (U.S.A.) or CSA C22.1 Canadian Electrical Code, Part I (Canada).

The installation must conform with local codes, in the absence of local codes, with the National Fuel Gas Code, ANS Z223.1/Ca- nadian Installation Code, CAN/CGA B149.

When installing furnace in a manufactured (mobile) home, follow the Manufactured Home Construction and Safety Standard, Title 24CFR, Part 3280 (formerly the Fed- eral Standard for Mobile Home Construc- tion and Safety, Title 24, part 280; 1975). When such a standard is not applicable, follow the Standard for Manufactured Home Installations, 1982 (Manufactured Home Sites, Communities, and Set-Ups), ANS A225.1/NFPA 501A.

In Canada, install furnace in accordance with Standard CSA Z240.4 - Gas Equipped Recre- ational Vehicles and Mobile Housing and any applicable local codes and regulations.

Appliance input ratings are based on sea level operation and need not be changed for operation up to 2,000 feet elevation. For operation at elevations above 2,000 feet, manufactured to specified deration condi- tions for Canada and the United States.

SPECIFICATIONS

 

25,000 Btu/Hr

40,000 Btu/Hr

*Rated Heating Input (BTU/Hr)

25,000

40,000

Thermal Output Capacity

 

 

(average loss calculation)

18,750 Btu/Hr

30,000 Btu/Hr

Type Gas

Propane/LP Only

Propane/LP Only

Ignition

Hot Surface Ignitor

Hot Surface Ignitor

Operating Amps

1.5

2

Volts/Cycles

120/60

120/60

Main Burner

1

2

Pressure Regulator Setting

10" W.C.

10" W.C.

Inlet Connection

3/8 NPT

3/8 NPT

Inlet Gas Pressure (in. of water)*

 

 

Maximum

13"

13"

Minimum

11"

11"

Dimensions, Inches (H x W x D)

 

 

Furnace

15 3/32 x 16 1/8 x 23 5/8

15 3/32 x 21 3/4 x 23 5/8

Weight (pounds)

 

 

Furnace

53

71

Shipping

65

98

* For purposes of input adjustment.

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Contents OWNER’S Operation and Installation Manual For Your SafetyFor Your Safety What to do if YOU Smell GAS Safety Information Unpacking Product FeaturesSpecifications Local CodesLocating Furnace InstallationInstallation Items Check GAS TypeCreating Wall Opening and Mounting Furnace Installing ThermostatInstalling in Normal Frame Wall Installing in Masonry WallRouting Thermostat Cable Locating Thermostat on WallConnecting to GAS Supply Connecting Furnace to Gas Supply at Front of FurnaceMounting the Thermostat to Wall Removing Screws on Lower Flange 40,000 BTU/Hr Model Shown Connecting Furnace to Gas Supply at Rear of FurnaceExample Providing Gas Piping to FurnaceChecking GAS Connections Pressure Testing Gas Supply Piping SystemPerformance Check Pressure Testing Furnace Gas ConnectionsFor Your Safety Read Before Lighting Operating FurnaceOperating Instructions Thermostat Control Operation Inspecting Burner FlameNormal Operating Sequence To Turn OFF GAS To FurnaceCleaning and Maintenance Observed Problem Possible Cause Remedy TroubleshootingIgnition Failures Observed Problem Possible Cause Wire and wire connections at probe Parts Wiring Diagrams ReplacementService Hints Technical ServiceCabinet Assembly 25,000 BTU/HR Model Illustrated Parts ListCabinet 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 Limited Warranty Williams GAS Wall Furnace Warranty Information

2503531, 4003531 specifications

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