Williams Furnace 4505621 User Manual

Floor  
Furnace  
Floor Furnace  
Very quietly heat large  
areas with this easily-  
installed, space and  
energy-saving furnace!  
Williams’ floor furnaces use no above-  
the-floor room space as it unobtrusively  
and efficiently circulates warm air . . . and  
does it without the aid of a blower.  
Our models are fitted with an automatic  
floor-register grille temperature control  
and nonelectric pilot to ensure  
continuous heat – even during power  
outages.  
Floor furnaces are designed to give you  
maximum efficiency, low-fuel  
consumption and quiet operation.  
45,000 and 60,000  
Design Features  
No electricity required  
“Matchless” pilot igniter  
Easy installation  
Combustion chamber lifts out for easy servicing  
Long-life and quiet heavy-duty burner  
Wall-mounted thermostat included  
Natural and propane gas models  
(Conversion kit available)  
These models offer affordable  
solutions for limited-space floor  
plans, remodels, remote cabin  
locations and new construction.  
Automatic temperature and safety controls  
Resettable vent-limit safety switch  
 
Floor Furnace  
Efficiency Percentages  
Model Number  
Dimensions  
Floor Opening  
Btu/hr  
Input  
Btu/hr  
Shipping  
Output  
Weight (lbs.)  
Natural  
Propane  
Width  
Thermal  
AFUE  
Length  
Height  
Width  
Length  
4505622  
6005622  
4505621  
6005621  
24"  
24"  
45,000  
60,000  
31,500  
42,000  
70.0  
70.0  
57.0  
58.0  
32"  
42"  
28½"  
28½"  
24¼"  
24¼"  
32"  
42"  
147  
174  
All units have ½" gas connection.  
Easy Installation  
Features  
NOTE: If two joists  
are cut, use a  
Floor Register Temperature Control  
Williams' floor furnaces are equipped with automatic floor  
register grille temperature control. This meets the latest  
American National Standards Institute Requirements. In  
extreme weather conditions, this control can be overridden to  
allow increased heat output.  
double header  
Floor  
Headers  
Floor  
Joist  
Temperature Control  
A self-generating millivolt electrical system powers a wall-  
mounted heating thermostat. This provides maximum room  
comfort while allowing economical automatic operation.  
This space must be the same  
size as the opening cut in the  
floor  
NOTE: The headers must not  
be a smaller size lumber than  
the joists  
Furnace  
Accessories  
High-Altitude Units  
Conversion Kits  
Requires  
FIRST FLOOR  
JOIST HEADERS  
No Electricity  
Great During  
4" VENT PIPE  
(¼" RISE PER FOOT)  
Power Outages  
DEPTH OF  
FURNACE  
18" MINIMUM  
WORK SPACE  
VENTILATION  
OPENING  
12"  
GROUND LEVEL  
12" MINIMUM  
18" MINIMUM ON  
CONTROL END OF FURNACE  
12" MINIMUM ON ALL SIDES  
EXCEPT CONTROL END OF FURNACE  
DRAIN FROM  
FURNACE PIT  
All units have 4" flue pipe diameter and 18" floor-to-center of flue connection.  
Important  
· Read owner's manual before using/installing.  
· Photographs are representative only.  
· Specify propane or natural gas when ordering.  
· Check local codes and ordinances for permitted uses.  
· Consult installation manual for clearances prior to installation.  
· We reserve the right to amend product specifications without notice.  
· Installation and servicing recommended by a qualified service person.  
· Please read the warranty, for any limitations or disclaimers. Combustion  
chamber carries a ten-year limited warranty. All other parts carry a one-year  
li.llimited warranty.  
Recommended Minimum Clearances  
6" between the floor furnace and adjacent walls  
12" between the floor furnace and doors, draperies or other combustible materials  
15" walk space along two sides of the furnace  
· Venting must comply with the "Venting and Chimney Requirements" section of the  
...installation manual.  
250 West Laurel Street · Colton, California 92324 USA  
(909) 825-0993 · Fax: (909) 370-0581 or (909) 824-8009  
Consumer Line: (888) 256-6465  
· Replacement floor furnaces of the same or lesser Btu/hr input rating may  
be installed in the same location as the replaced furnace when  
replacement does not create an unsafe condition.  
Homeowner Assistance: (909) 426-0978  
© 2008 Williams Furnace Co.  
Printed in U.S.A.  
All Rights Reserved  
Subject to Change without Notice  
L1026 5/08  
 

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