Williams Furnace 3508331 User Manual

Forsaire  
Counterflow Furnaces  
Efficiently-designed  
comfort heating  
for up to three rooms!  
Electric Home Heater  
The practical choice for those areas where  
natural or propane gas is not convenient  
to install. It provides low-cost, floor-to-  
ceiling comfort (31,400 Btu/hr), is  
thermostatically controlled, and is ideal  
for basements and room additions.  
Direct-Vent Counterflow  
Forced-air circulation comfort heating  
system uses only outside air for  
combustion, as the burners are  
completely sealed within the combustion  
chamber. Combustion is discharged  
outdoors through the wall; this eliminates  
the expense of a chimney…all vent caps  
include a built-in “Bird Guard”. All vent  
material is included. IDEAL for garages.  
35,000 - 65,000 Btu/hr  
Top-Vent Counterflow  
This model’s powerful counterflow blower system  
receives air at ceiling level, warms it and quietly  
delivers it at floor level to give an equalized floor-to-  
ceiling temperature! Installs easily and inexpensively.  
Design Features  
Freestanding or recessed, Forsaire furnaces are ideal for  
homes, apartments, offices, schools, cabins and many  
other applications  
Counterflow blower system circulates ceiling-to-floor  
warm air  
Choose from electronic ignition or “Matchless” ignition  
(gas-fired models)  
Multi-room heating with optional outlet kits – heat up  
to three rooms  
Gas models equipped with a four-foot service cord  
Natural and propane gas models (conversion kit available)  
Automatic temperature and safety controls  
Resettable vent-limit safety switch (top-vent models)  
Thermostat included  
40,000 – 62,500 Btu/hr  
 
Forsaire Counterflow Furnaces  
Model Number  
Natural Propane  
Efficiency %  
Dimensions  
Btu/hr  
Input  
Btu/hr  
Output  
Rating  
Shipping  
Weight  
(lbs.)  
Blower CFM  
Speed 115V  
Amps Pilot Type  
Thermal  
AFUE  
Height  
Depth  
Width  
Rating  
TOP-VENT with Electrical Service Cord  
Conversion Kit Available  
3508332  
3508732  
5008732  
5508332  
6508732  
3508331  
3508731  
5008731  
5508331  
6508731  
35,000  
35,000  
50,000  
55,000  
65,000  
28,000  
28,000  
40,000  
44,000  
48,000  
80.0  
80.0  
80.0  
80.0  
74.0  
75.0  
75.0  
74.3  
76.0  
74.0  
72½"  
72½"  
81"  
10¼"  
10¼"  
10¼"  
10¼"  
10¼"  
14"  
14"  
14"  
14"  
14"  
One  
One  
Two  
Two  
Two  
240  
240  
350  
440  
440  
0.8 Intermittent  
95  
90  
0.8  
2.2  
Standing  
Standing  
99  
87"  
3.0 Intermittent  
3.0 Standing  
113  
107  
87"  
DIRECT-VENT with Electrical Service Cord  
Conversion Kit Available  
4007332  
4007732  
5507332  
6257732  
4007331  
4007731  
5507331  
6257731  
40,000  
40,000  
55,000  
62,500  
32,000  
32,000  
44,000  
50,000  
80.0  
80.0  
80.0  
80.0  
75.0  
75.0  
76.0  
76.0  
77"  
77"  
87"  
11¾"  
11¾"  
11¾"  
11¾"  
14"  
14"  
14"  
14"  
One  
One  
Two  
Two  
325  
325  
440  
440  
2.0 Intermittent  
2.0 Standing  
3.0 Intermittent  
126  
126  
140  
140  
87"  
3.0  
Standing  
TOP-VENT MAGNUM HIGH-EFFICIENCY with Electrical Service Cord  
Conversion Kit Available  
6008532  
6008531  
60,000  
49,200  
82.0  
78.0  
80¼"  
72½"  
10¼"  
7"  
14"  
Two  
440  
3.0  
Standing  
121  
ELECTRIC COUNTERFLOW  
Btu/hr at  
Btu/hr at  
208V:  
Maximum  
Voltage:  
253V  
Minimum  
Voltage:  
240V:  
3144030 - 9.2 kW  
14"  
One  
375  
40.0  
N/A  
60  
207V  
31,400  
23,600  
Gas connection: ½"  
·
Equipped with a 24V control valve and wall thermostat  
·
All gas models are rated for 4,500' elevation  
Accessories  
Rear and Side Outlet Accessories - Allows heat to be ducted into a rear or side room.  
Dimensions and Clearances  
6801  
6802  
6501  
6701  
6702  
Rear-Outlet Register with 10" Boot and Damper for Top-Vent Models · 9 lbs.  
Rear-Outlet Register with 1" Boot and Damper for Top-Vent Models · 5 lbs.  
Rear-Outlet Register with 10" Boot and Damper for Electric Models · 7 lbs.  
Side-Outlet Register with 10" Boot and Damper for Top- and Direct-Vent Models · 11 lbs.  
Side-Outlet Grille for Top- and Direct-Vent Models · 2 lbs.  
Top-Vent  
4" to Intersecting Wall  
4" from Top of Furnace to Ceiling/Overhang  
2" from Top of Furnace to Ceiling on 60085 Series  
Front Diffusing Grilles - A snap-on grille used to divert heat to the right, left or both directions.  
0" to Finished Floor  
6703  
6704  
Two-Directional Diffuser Grille for All Models · 3 lbs.  
One-Directional Diffuser Grille for All Models · 3 lbs.  
Direct-Vent  
4" to Intersecting Wall  
Venting Accessories  
4" from Top of Furnace to Ceiling/Overhang  
0" to Finished Floor  
4318  
9307  
9308  
9806  
9807  
9808  
9901  
9902  
Vent Shield Deflector · Insulated, galvanized metal sheet for Direct-Vent Models · 4 lbs.  
Thin Wall Collar · Wall thicknesses from 1" to 5". Used with Direct-Vent Models · 4 lbs.  
Vent Cap Guard · Protects pedestrian traffic from heat of the direct-vent cap · 3 lbs.  
Direct-Vent Tube Extension - 12" Length · 11 lbs.  
Direct-Vent Tube Extension - 15" Length · 11 lbs.  
Direct-Vent Tube Extension - 24" Length · 11 lbs.  
59" from Finished Floor to Centerline of Vent Cap for Model Series:  
40073 and 400773  
68½" from Finished Floor to Centerline of Vent Cap for Model  
Top-Vent Starter Kit · Contains starter hold down plate, oval-to-round adapter and two pieces of oval pipe. · 9 lbs.  
Top-Vent Adapter for top-vent, freestanding (not recessed) installations · 3 lbs.  
Finish Items  
4701  
Trim Strip Accessory · Metal finishing moulding strips painted the same color as the furnace for all models · 4 lbs.  
Top-Vent Enclosure - 12" · A metal enclosure, painted the same color as the furnace, to enclose the vent pipes · 4 lbs.  
Top-Vent Enclosure - 24" · A metal enclosure, painted the same color as the furnace, to enclose the vent pipes. · 8 lbs.  
Top-Vent Enclosure - 36" · A metal enclosure, painted the same color as the furnace, to enclose the vent pipes. · 12 lbs.  
9812  
9824  
9836  
Conversion Kits - Current models only · 1 lb.  
Natural to  
Propane  
7685  
7686  
7687  
7688  
7691  
7690  
7689  
Propane to  
Natural  
7692  
7693  
7694  
7695  
7698  
7697  
7696  
Btu Size  
35,000  
40,000  
50,000  
55,000  
60,000  
65,000  
62,500  
Important  
· Read owner's manual before using/installing.  
· Photographs are representative.  
· Check local codes and ordinances for permitted uses.  
· Consult installation manual for clearances prior to installation.  
· We reserve to right to amend product specifications without notice.  
· Installation and servicing recommended by a qualified service person.  
· Venting must comply with the installation manual.  
· New York approval MEA197-82E Vol 111 on direct-vent models only.  
· Massachusetts approval G3-0305-171  
High Altitude Models  
Hard Wire Adapter - Model 9940 - 1 lb.  
250 West Laurel Street · Colton, California 92324 USA  
· Please read the warranty for any limitations for disclaimers.  
· Combustion chamber carries a ten-year limited warranty. All other  
piparts carry a one-year limited warranty.  
(909) 825-0993 · Fax: (909) 370-0581 or (909) 824-8009  
Consumer Line: (888) 256-6465  
Homeowner Assistance: (909) 426-0978  
© 2008 Williams Furnace Co.  
Printed in U.S.A.  
All Rights Reserved  
Subject to Change without Notice  
L1158 5/08  
 

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