CAPFA Installation Guide

5
2. A duct ange kit can also be purchased from your distributor.
(See Figure 7)
• 14 inch chassis - CLDUCTFLGA
• 17.5 inch chassis - CLDUCTFLGB
• 21 inch chassis - CLDUCTFLGC
• 24.5 inch chassis - CLDUCTFLGD
Figure 7
10. Filler Plates
Filler plates are supplied on all 17.5, 21, & 24.5 inch chassis to be
used for adapng the unit to a furnace one size smaller. If the
plenum and furnace openings are the same size, the ller plates
must be removed. See Figure 6.
11. ReturnDuctwork
DO NOT TERMINATE THE RETURN DUCTWORK IN AN AREA
THAT CAN INTRODUCE TOXIC OR OBJECTIONABLE FUMES/
ODORS INTO THE DUCTWORK.
12. Sealing Along The Panel Gap
IMPORTANT NOTE: To prevent cabinet sweating and
airow leak, apply eld provided insulation tape along
all joining surfaces between the coil, gas furnace, duct
work and panels. See Figure 8.
Apply Insulation Tape
Figure 8
13. AluminumIndoorCoilCleaning
(QualiedServicerOnly)
This unit is equipped with an aluminum tube evaporator coil. The
safest way to clean the evaporator coil is to simply ush the coil
with water. This cleaning pracce remains as the recommended
cleaning method for both copper tube and aluminum tube resi-
denal evaporator coils.
It has been determined that many coil cleaners and drain pan tab-
lets contain corrosive chemicals that can be harmful to aluminum
tube and n evaporator coils. Even a one-me applicaon of these
corrosive chemicals can cause premature aluminum evaporator coil
failure. Any cleaners that contain corrosive chemicals including,
but not limited to, chlorine and hydroxides, should not be used.
An alternate cleaning method is to use one of the products listed in
TP-109* to clean the coils. The cleaners listed are the only agents
deemed safe and approved for use to clean round tube aluminum
coils. TP-109 is also available on the web site in Partner Link >
Service Toolkit.
NOTE: Ensure coils are rinsed well aer use of any chemical cleaners.