Model
DSC
Blower
RPM
Range
Motor
1
Adjustable Motor Pulley Fixed Blower Pulley Super Belts
HP
Service
Factor
Frame
Size
Pitch
Diameter,
Inches
Bore
Inches
Pitch
Diameter,
Inches
Bore
Inches
Pitch
Length,
Inches
Desig-
nation
Qty.
360
780-940 10 1.15 215T 4.9-5.9 1-3/8 11 1-15/16 63.8 B62 2
924-1114 15 1.15 254T 5.8-7.0 1-5/8 11 1-15/16 63.8 B62 2
480
924-1114 15 1.15 254T 5.8-7.0 1-5/8 11 1-15/16 63.8 B62 2
1189 20 1.15 256T 7.2
2
1-5/8 10.6 1-15/16 62.9 C60 2
1
All motors are 1750 RPM, have solid bases, and require starters with overloads, which are factory supplied.
2
20 HP drive has a fixed motor pulley.
TABLE 9 - BLOWER MOTOR AND DRIVE DATA
Model DSC Option or Accessory
Resistance (IWG) @ Designated CFM
9600 10800 12000 13200 14400
360
G400, G560 Gas Heat .002 .028 .034 .041 .049
E040, 060, 080 100, 120 Electric Heat .013 .016 .020 .024 .029
Exhaust Air .022 .028 .035 .042 .050
Return Air Damper for Economizer End Duct Connection .179 .226 .279 .338 .402
Return Air Damper for Economizer Side-by-Side Btm. Duct .077 .097 .120 .145 .173
2" - 30% Efficient Filters
1
.007 .009 .011 .014 .016
Bag Type Filters
1
.056 .071 .089 .107 .127
End Duct Connections
2
.143 .181 .224 .271 .323
480
12800 14400 16000 17600 19200
G560 Gas Heat .038 .049 .06 .073 .086
G800 Gas Heat .051 .065 .08 .097 .115
E040, 060, 080 100, 120 Electric Heat .026 .032 .04 .048 .058
Exhaust Air .032 .041 .05 .061 .072
Return Air Damper for Economizer End Duct Connection .102 .130 .16 .194 .230
Return Air Damper for Economizer Side-by-Side Btm. Duct .064 .081 .10 .121 .144
2" - 30% Efficient Filters
1
.007 .011 .015 .018 .021
Bag Type Filters
1
.051 .091 .122 .136 .161
End Duct Connections
2
.384 .486 .60 .726 .864
1
These resistances include a deduction for 2" throwaway or cleanable filters.
2
Add these resistance values to the available static pressure shown in blower performance data table.
TABLE 10 - RESISTANCES FOR UNIT OPTIONS AND
ACCESSORIES (1WG)
530.25-N3Y
Unitary Products Group 21
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