Installation Clearances; Duct Work - Boyertown Furnace RSM 500 Installation, Operation And Maintenance Manual

Installation Clearances

Furnaces in rooms shall be installed with the clearances from combustible materials not
WARNING
less than indicated in Table 1. Combustible materials are those made of or surfaced with wood,
compressed paper, plant fibers, plastics, or other material that will ignite and burn, whether flame proofed
or not, or whether plastered or not.
Place the furnace near the center of the supply and return ducts and as close to the chimney connector
as possible. Provide a solid brick or 2" thick minimum concrete pad if the furnace mounting area is
not level or if the floor can become flooded.
Table 1 Standard Installation Clearances High Boy Configuration
Sides
MODEL "A"
RSM 500 2"
RSM 600 2"
RSM 750 2"
Table 1 Standard Installation Clearances Horizontal Configuration
Sides
MODEL "A"
RSM 500 2"
RSM 600 2"
RSM 750 2"
Furnaces are permitted to be installed in rooms, with lesser clearances to combustible material,
provided the combustible material is protected as described in Table 2 and NFPA 31. In no case shall
the clearance be such as to interfere with the requirements for combustion air, draft regulators and
accessibility.

Duct Work

NOTICE
The duct system should follow the design standards of Air Conditioning Contractors of
America (ACCA) or ASHRAE. The duct system should be sized for the maximum CFM capabilities
of the furnace being installed.
All trunk lines, take-offs, registers and grill free areas must be figured when determining the air
Top Front
"B" "C"
2" Closet-18"
2" Closet-18"
2" Closet-18"
Top Front
"B" "C"
2" Closet-18"
2" Closet-18"
2" Closet-18"
Rear Flooring
"D"
6" Combustible
6" Combustible
6" Combustible
Rear Flooring
"D"
6" Combustible
6" Combustible
6" Combustible
Chimney Plenum
Connector Top &
"E" Sides
6" 2"
6" 2"
6" 2"
Chimney Plenum
Connector Top &
"E" Sides
6" 2"
6" 2"
6" 2"
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