Carrier 140/E Series - Supply Air Connections; Upflow and Horizontal Furnaces

14
Supply Air
Connections
For a furnace not equipped with a cooling coil, the outlet duct
shall be provided with a removable access panel. This opening
shall be accessible when the furnace is installed and shall be of
such a size that the heat exchanger can be viewed for possible
openings using light assistance or a probe can be inserted for
sampling the air stream. The cover attachment shall prevent leaks.
Upflow and Horizontal
Furnaces
Connect supply--air duct to flanges on furnace supply--air outlet.
Bend flange upward to 90_ with wide duct pliers. (See Fig. 14.)
The supply-- air duct must be connected to ONLY the furnace
supply--outlet --air duct flanges or air conditioning coil casing
(when used). DO NOT cut main furnace casing side to attach
supply air duct, humidifier, or other accessories. All accessories
MUST be connected to duct external to furnace main casing.
NOTE: For horizontal applications, the top most flange may be
bent past 90_ to allow the evaporator coil to hang on the flange
temporarily while the remaining attachment and sealing of the
coil are performed.
UPFLO
W OWNFLOW
HORIZONTAL
YES
NOT
RECOMMENDED
YES
YES
YES
120û
MIN
YES
120û
MIN
YES
120û
MIN
90û
90û
NOT
RECOMMENDED
NOT
RECOMMENDE
D
D
A02329
Fig. 14 -- Duct Flanges
1
/4 " (6 mm) THREADED ROD
4 REQ.
SECURE ANGLE
IRON TO BOTTOM
OF FURNACE WITH
3 #8 x
3
/4 " (19 mm) SCREWS
TYPICAL FOR 2 SUPPORTS
1" (25 mm) SQUARE, 1
1
/4 " x 1
1
/4 " x
1
/4 "
(32 x 32 x 6 mm) ANGLE IRON
OR UNI-STRUT MAY BE USED
(2) HEX NUTS, (2) WASHERS & (2) LOCK WASHERS
REQ. PER ROD
8” (203 mm) MIN FOR
DOOR REMOVAL
OUTER DOOR
ASSEMBLY
A02345
Fig. 15 -- Horizontal Unit Suspension
58CV