560.20-N1Y
035-16734-000
18
Unitary Products Group
DUCT CONNECTIONS
All ducts should be made in accordance with all local and/or
National Codes and in line with good duct installation prac-
tices.
Ductwork should be suspended with flexible hangers. Do not
fasten directly to building or structure.
Allow clearance around duct for safety in handling heater air,
if any.
TABLE 15: BLOWER MOTOR DRIVE DATA
UNIT
MODEL
MOTOR
1
BLOWER
RPM
AJUSTABLE MOTOR PULLEY
FIXED BLOWER PULLEY
BELT
HP
POWER
SUPPLY
PITCH
DIA.
(In.)
BORE
(In.)
PITCH
DIA.
(In.)
BORE
(In.)
DESIG.
PITCH
LENGHT
(In.)
CED060
06
25
3/4
208/230-1-60
810-110
2.8-3.8
5/8
6.0
3/4
A32
33.3
46
1
460-3-60
7/8
CED090
25
46
1-1/2
208/230-3-60
460-3-60
655-880
2.8-3.8
7/8
7.5
1
A36
37.3
CED120
25
46
2
208/230-3-60
460-3-60
700-950
2.8-3.8
7/8
7.0
1
A36
37.3
CED180
25
46
3
208/230-3-60
625-810
3.4-4.4
7/8
9.5
1
A57
58.3
1.
All of these motors are 1750 RPM and have a 56 frame inherent protection and permanently lubricated ball bearings. The 3/4 Hp
motor is split phase and has a resilient base and a 1.25 service factor. All of the 3 phase motors have a solid base and a 1.15 ser-
vice factor.
DO NOT OPERATE A MOTOR ABOVE ITS NOM-
INAL HP RATING WHEN A UNIT IS EQUIPPED
WITH EITHER A HOT WATER OR A STEAM
COIL ACCESSORY.
FIGURE 11 : SUPPLY AIR DUCT CONNECTION
A I R
O U T
N O N - F L A M M A B L E
C O L L A R
F L A N G E D D U C T
C O N N E C T I O N
( F I E L D
F A B R I C A T E D )
D U C T
S U P P L Y A I R
D U C T F L A N G E
B L O W E R G A S K E T
( B Y I N S T A L L E R )