Williams 3508331 User manual

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
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.
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
40,000 – 62,500 Btu/hr
Efficiently-designed
comfort heating
for up to three rooms!
Forsaire
Counterflow Furnaces

Natural Propane Thermal AFUE Height Depth Width
TOP-VENT
with Electrical Service Cord
3508332 3508331 35,000 28,000 80.0 75.0 72½" 10¼" 14⅛" One 240 0.8 Intermittent 95
3508732 3508731 35,000 28,000 80.0 75.0 72½" 10¼" 14⅛" One 240 0.8 Standing 90
5008732 5008731 50,000 40,000 80.0 74.3 81" 10¼" 14⅛" Two 350 2.2 Standing 99
5508332 5508331 55,000 44,000 80.0 76.0 87" 10¼" 14⅛" Two 440 3.0 Intermittent 113
6508732 6508731 65,000 48,000 74.0 74.0 87" 10¼" 14⅛" Two 440 3.0 Standing 107
DIRECT-VENT
with Electrical Service Cord
4007332 4007331 40,000 32,000 80.0 75.0 77⅜" 11¾" 14⅛" One 325 2.0 Intermittent 126
4007732 4007731 40,000 32,000 80.0 75.0 77⅜" 11¾" 14⅛" One 325 2.0 Standing 126
5507332 5507331 55,000 44,000 80.0 76.0 87" 11¾" 14⅛" Two 440 3.0 Intermittent 140
6257732 6257731 62,500 50,000 80.0 76.0 87" 11¾" 14⅛" Two 440 3.0 Standing 140
TOP-VENT MAGNUM HIGH-EFFICIENCY
with Electrical Service Cord
6008532 6008531 60,000 49,200 82.0 78.0 80¼" 10¼" 14⅛" Two 440 3.0 Standing 121
ELECTRIC COUNTERFLOW
Btu/hr at
240V:
31,400
Btu/hr at
208V:
23,600
Minimum
Voltage:
207V
Maximum
Voltage:
253
V
72½" 7" 14⅛" One 375 40.0 N/A 60
Accessories
Rear and Side Outlet Accessories - Allows heat to be ducted into a rear or side room.
6801 Rear-Outlet Register with 10" Boot and Damper for Top-Vent Models · 9 lbs.
6802 Rear-Outlet Register with 1" Boot and Damper for Top-Vent Models · 5 lbs.
6501 Rear-Outlet Register with 10" Boot and Damper for Electric Models · 7 lbs.
6701 Side-Outlet Register with 10" Boot and Damper for Top- and Direct-Vent Models · 11 lbs.
6702 Side-Outlet Grille for Top- and Direct-Vent Models · 2 lbs.
Front Diffusing Grilles -A snap-on grille used to divert heat to the right, left or both directions.
6703
T
wo-Directional Diffuser Grille for All Models · 3 lbs.
6704 One-Directional Diffuser Grille for All Models · 3 lbs.
Venting Accessories
4318 Vent Shield Deflector · Insulated,
g
alvanized metal sheet for Direct-Vent Models · 4 lbs.
9307
T
hin Wall Collar · Wall thicknesses from 1" to 5". Used with Direct-Vent Models · 4 lbs.
9308 Vent Ca
p
Guard · Protects
p
edestrian traffic from heat of the direct-vent ca
p
· 3 lbs
.
9806 Direct-Vent Tube Extension - 12" Len
g
th · 11 lbs.
9807 Direct-Vent Tube Extension - 15" Len
g
th · 11 lbs.
9808 Direct-Vent Tube Extension - 24" Len
g
th · 11 lbs.
9901
T
o
p
-Vent Starter Kit · Contains starter hold down
p
late, oval-to-round ada
p
ter and two
p
ieces of oval
p
i
p
e. · 9 lbs.
9902
T
o
p
-Vent Ada
p
ter for to
p
-vent, freestandin
g
(not recessed) installations · 3 lbs
.
Finish Items
4701
T
rim Stri
p
Accessor
y
· Metal finishin
g
mouldin
g
stri
p
s
p
ainted the same color as the furnace for all models · 4 lbs.
9812
T
o
p
-Vent Enclosure - 12" · A metal enclosure,
p
ainted the same color as the furnace, to enclose the vent
p
i
p
es · 4 lbs
.
9824
T
o
p
-Vent Enclosure - 24" · A metal enclosure,
p
ainted the same color as the furnace, to enclose the vent
p
i
p
es. · 8 lbs
.
9836
T
o
p
-Vent Enclosure - 36" · A metal enclosure,
p
ainted the same color as the furnace, to enclose the vent
p
i
p
es. · 12 lbs
.
Conversion Kits - Current models only · 1 lb.
Btu Size Natural to
Propane
Propane to
Natural
35,000 7685 7692
40,000 7686 7693
50,000 7687 7694
55,000 7688 7695
60,000 7691 7698
65,000 7690 7697
62,500 7689 7696
High Altitude Models
Hard Wire Adapter - Model 9940 - 1 lb.
Model Number Btu/hr
Input
Rating
Btu/hr
Output
Rating
3144030 - 9.2 kW
Dimensions Blower
Speed
CFM
115V
Gas connection: ½" · Equipped with a 24V control valve and wall thermostat · All gas models are rated for 4,500' elevation
© 2008 Williams Furnace Co. Printed in U.S.A. All Rights Reserved Subject to Change without Notice L1158 5/08
Conversion Kit Available
Forsaire Counterflow Furnaces
Conversion Kit Available
Conversion Kit Available
Amps Pilot Type
Shipping
Weight
(lbs.)
Efficiency %
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
· 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.
Dimensions and Clearances
Top-Vent
4" to Intersecting Wall
4" from Top of Furnace to Ceiling/Overhang
2" from Top of Furnace to Ceiling on 60085 Series
0" to Finished Floor
Direct-Vent
4" to Intersecting Wall
4" from Top of Furnace to Ceiling/Overhang
0" to Finished Floor
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
250 West Laurel Street · Colton, California 92324 USA
[phone] · Fax: [phone] or [phone]
Consumer Line: [phone]
Homeowner Assistance: [phone]
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