036-21490-002-A-0204
28 Unitary Products Group
FIGURE 9 - DETAIL “X” ACCY. SIDE SUPPLY & RETURN AIR OPENINGS - 20 TON
FIGURE 10 - DETAIL “Y” UNIT WITH RAIN HOODS
S U P P L Y
A I R
C O M P A R T M E N T
P O W E R
E X H A U S T
R A I N
H O O D
( o n
R e t u r n
A i r
C o m p a r t m e n t )
E C O N O M I Z E R
M O T O R I Z E D
D A M P E R
R A I N H O O D
( o n O u t d o o r A i r C o m p a r t m e n t )
E C O N O M I Z E R
/
M O T O R I Z E D
D A M P E R
A N D
P O W E R
E X H A U S T
R A I N
H O O D S
F I X E D
O U T D O O R
A I R
I N T A K E
H O O D
( l o c a t e d o n
R e t u r n A i r
C o m p a r t m e n t )
1 " C O N D E N S T A T E
D R A I N
( M u s t b e t r a p p e d )
R E A R V I E W
L H V I E W
D E T A I L " Y "
U N I T W I T H R A I N H O O D S
3 6 "
6 6 - 1 / 2 "
9 2 "
3 6 - 1 / 4 "
5 "
3 4 - 1 / 4 "
1 6 - 1 / 8 "
2 "
FIGURE 11 - CENTER OF GRAVITY
APPROXIMATE
CENTER OF
GRAVITY
OUTDOOR COIL
END OF UNIT
BACK
FRONT
92"
125-¼" (15 TON)
136-¼" (20 TON)
45" (15 TON)
46" (20 TON)
60" (15 TON)
47-½" (20 TON)
DUCT COVERS - Units are shipped with the bottom
duct openings covered. An accessory flange kit is available for
connecting side ducts.
For bottom duct applications:
1. Remove the side panels from the supply and return
air compartments to gain access to the bottom
supply and return air duct covers.
2. Remove and discard the bottom duct covers. (Duct
openings are closed with sheet metal covers except
when the unit includes a power exhaust option. The
covering consists of a heavy black paper composition.)
3. Replace the side supply and return air compartment
panels.
For side duct applications;
1. Replace the side panels on the supply and return air
compartments with the accessory flange kit panels.
2. Connect ductwork to the duct flanges on the rear of
the unit.
OUTDOOR AIR PANEL SIZE
20 TON UNITS 34-3/4" X 47-5/8"
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