Carrier 070-08/024070 Installation, Start-Up, Operating And Service And Maintenance Instructions page 11

FURNACE
(OR COIL CASING
WHEN USED)
COMBUSTIBLE
FLOORING
SUBBASE
PLENUM
__ FLOOR __
OPENING
• . A96283
Fig. 11iFloor and Plenum Opening Dimensions
Fig. 12iFurnace, Plenum, and Subbase Installed on
a Combustible Floor A96285
FURNACE
CD5 OR CK5
COIL ASSEMBLY
OR KCAKC
COIL BOX
COMBUSTIBLE
FLOORING
SHEET METAL____=._
PLENUM
__ FLOOR
OPENING
A04140
Fig. 13--Furnace, Plenum, and Coil Assembly or Coil
Box Installed on a Combustible Floor
A04140
4. If downflow subbase, KGASB is used, install as shown in Fig.
12. If Coil Assembly Part No. CD5 or CK5 or Coil Box Part
No. KCAKC is used, install as shown in Fig. 13.
NOTE: It is recommended that the perlbrated supply-air duct
flanges be completely fblded over or removed li"om furnace when
installing the fimlace on a factory-supplied cased coil or coil box.
To remove the supply-air duct flange, use wide duct pliers or hand
seamers to bend flange back and lbrth until it breaks off. Be careful
of sharp edges. (See Fig. 14.)
II
Bottom Return Air Inlet
These furnaces are shipped with bottom closure panel installed in
bottom return-air opening. Remove and discard this panel when
bottom return air is used. To remove bottom closure panel,
perlbrm the lollowiug:
1. Tilt or raise furnace and remove 2 screws holding bottom filler
panel. (See Fig. 9.)
2. Rotate bottom filler panel downward to release holding tabs.
3. Remove bottom closure panel.