Williams 4003531, 2503531 Wiring Diagrams Replacement, Parts, Service Hints, Technical Service

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OWNER’S MANUAL

WIRING DIAGRAMS

REPLACEMENT

 

 

 

 

 

Thermostat

 

 

 

 

 

Red

White

 

 

 

Junction

 

 

Black

 

 

Box

 

 

 

 

 

 

 

 

 

V.A.C.

 

 

 

Black

Black

Green

 

 

 

 

 

Terminal Block

115

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

White

 

 

 

White

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Limit

Sail Switch

 

Switch

 

 

Red

Black

 

Time Delay

 

Green

 

Brown

Relay

 

 

Orange

Yellow

 

 

 

Blue

 

1

 

2

Ignition

3

Control

Board

4

5 (Open)

6

PARTS

Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.

All parts listed herein may be ordered from your equipment supplier.

When ordering repair parts, always give the following information:

 

Black

 

 

Yellow

Transformer

 

 

 

 

Brown

 

 

 

 

 

 

370 V.A.C.

 

 

 

Capacitor

 

 

 

 

5 MFD

Yellow

Gas Valve

 

White

 

 

 

 

White

 

Brown

 

 

 

 

 

 

 

Brown

 

White

 

White

Brown

Black

 

 

Motor

 

Note:

 

 

Green

 

 

7

Black

Black Probe

White

White

Glo-Bar

model number of your furnace

type of gas, natural or propane/LP

the replacement part number and de- scription

SERVICE HINTS

When Gas Pressure Is Too Low

glo-bar glows, but burner will not ignite

Figure 20 - Wiring Diagram (25,000 BTU/Hr Model)

When Gas Quality Is Bad

burner will not stay lit

burner will produce flames and soot

 

 

 

Limit

Sail Switch

 

 

 

Switch

Thermostat

 

 

 

White

 

 

 

White

Red

Black

 

 

 

Junction

 

 

Green

 

 

Box

 

Time Delay

 

 

 

 

Brown

V.A.C.

Black

Black

Black

Relay

Green

 

Terminal Block

 

Yellow

 

 

 

 

115

 

 

 

 

 

 

 

 

Orange

White

White

 

 

 

 

Blue

 

 

Red

 

 

 

 

 

 

Brown

 

Transformer

Black

 

 

 

 

Brown

 

 

 

 

 

370V.A.C. Capacitor

White

5 MFD

Brown

Gas Valve

White

 

White

 

 

Brown

 

 

 

 

 

White

Brown

White

 

 

 

Black

 

 

Motor

 

 

Note:

 

 

Green

 

 

1

 

2

Ignition

3

Control

Board

4

5 (Open)

6

7

Black

Black Probe

White

White Glo-Bar

You may feel your gas pressure is too low or gas quality is bad. If so, contact your local gas supplier.

TECHNICAL

SERVICE

You may have further questions about in- stallation, operation, or troubleshooting. If so, contact your installer, a qualified service person, or Williams Technical Help Line at 1-800-266-0993.

Figure 21 - Wiring Diagram (40,000 BTU/Hr Model)

201843

19

Image 19
Contents For Your Safety OWNER’S Operation and Installation ManualFor 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 Furnace to Gas Supply at Front of Furnace Connecting to GAS SupplyMounting 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 ConnectionsOperating Furnace For Your Safety Read Before LightingOperating 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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