Comfort-Aire TGRG Series for R-410A - Manual (Page 12)

D. COVER PANEL INSTALLATION/CONVERSION PROCEDURE
1. HORIZONTAL TO DOWNFLOW
a. Remove screws and covers from the supply and return bottom sections. NOTE:
Rotate the supply cover 90° and remove.
b. Install gasket (supplied with parts bag) around perimeter of cover on the insulated
side. See Figure 6.
c. Secure covers to the side of the unit using existing screws and those supplied in
the parts bag.
2. DOWNFLOW TO HORIZONTAL
a. Remove screws and covers from the supply and return bottom sections.
b. Install gasket (supplied with parts bag) around perimeter of cover as illustrated in
Figure 5.
c. Install covers in the unit bottom with the insulated side up. NOTE: Supply cover
must be inserted through supply opening with narrow side toward unit. Once
cover is through opening, rotate 90° and slip back flange of cover under tab at the
back of bottom duct opening. See Figure 8.
d. Secure supply cover to base of unit with 2 screws, engaging prepunched holes in
raised duct opening flange.
e. Secure return covers to base of unit with screws engaging prepunched holes in
raised duct opening flange.
E. CLEARANCES
The following minimum clearances must be observed for proper unit performance and
serviceability. See Figure 9.
1. Provide 48” minimum clearance at front of the unit. Provide 24” minimum clearance
on right side of unit. If economizer is used, a 24” minimum clearance is required on
EXHAUST
HOOD W/(4)
SCREWS
COMBUSTION
AIR INLET
HOOD W/(4)
SCREWS
! WARNING
THIS UNIT MUST NOT BE INSTALLED DIRECTLY ON WOOD FLOORING, CLASS
A, CLASS B OR CLASS C ROOF COVERING MATERIALS, OR ANY OTHER COM-
BUSTIBLE STRUCTURE EXCEPT AS SPECIFIED IN FIGURE 13. FAILURE TO
ADHERE TO THIS WARNING CAN CAUSE A FIRE OR EXPLOSION RESULTING
IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
FIGURE 3
PITCHING UNIT TO INSURE PROPER CONDENSATE DRAINAGE.
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FIGURE 4
COMBUSTION AIR INLET HOOD & EXHAUST HOOD
INSTALLATION