Reznor SC Duct Furnace Unit Installation Manual - Manual (Page 7)

Form I-SC, P/N 207696 R11, Page 7
FIGURE 3 - Suspension
Methods
Mounting Supports
Standard Assembly Installer Replaced Assembly
1” Pipe Flange
Washer Nut Assembly
1” Pipe
Threaded
Socket
Washer Nut
Assembly
3/8” Rod
(Standard
threaded socket
assembly is removed.)
Access through
the side panel
Heater Top
Most furnaces will be suspended. If the installation requires that the furnace be
mounted, FIGURE 4 illustrates the requirements for field-fabricating support feet.
2” x 2” x 1/4”
Angle Iron Leg
6” x 6” x 1/4”
Metal Plate
Cabinet Leg
A
4” (102mm)
2-1/4”
(57mm)
Cabinet Leg
1/4” Nuts
Lockwashers
Spacers
1/4 x 1-1/2
Hex Head
Bolts
Angle Iron Leg
Drill 9/32” clearance
holes in angle iron
leg and cabinet leg.
A = 6” (152mm) minimum height for clearance
to combustibles. The recommended height
is 8” (203mm) for plumbing and service.
7”
(178mm)
FIGURE 4 - Model SC
Mounting Supports
WARNING
Units must be supported level for proper operation. Do not place or add
additional weight to the suspended unit. See Hazard Levels, page 2.
6.0 Mechanical 6.1 Optional Condensation Drain for Duct Furnaces
Model SC furnaces are certified for installation upstream or downstream from a cooling
coil. When installed downstream from a refrigeration system, condensation will form;
and therefore, adequate provision must be made to dispose of condensate.
Periodic cleaning of the condensate collection and disposal system is required.
Install drain connection, Option CS1, on the furnace casing; see FIGURE 5.
Seal holes in bottom pan with RTV sealant. Terminate drain outside of the building.
Provide a trap to prevent air from entering the combustion zone. Periodic cleaning of
the condensate collection and disposal system is required. NOTE: Requires a four-
inch (102mm) minimum clearance under the furnace if a 90° street elbow is used.
FIGURE 5 - Option CS1,
P/N 31765, Optional
Condensate Drain
Connection
#10-32 x 1”Lg Machine
Screw & Nut
3/4” Pipe Waste Nut
RTV Sealant