TABLE 7
- SUPPLY AIR BLOWER PERFORMANCE
(12-1/2 TON)
TABLE 8
- ACCESSORY STATIC RESISTANCES*
DESCRIPTION
EXTERNAL STATIC PRESSURE DROP - RESISTANCE, IWG
CFM
2250 3000 4000 5000 6000
Economizer 0.02 0.02 0.03 0.05 0.07
*Deduct these resistance values from the available external static pressure shown in the respective Blower Performance Table.
MODELS
BLOWER
RANGE
(RPM)
MOTOR*
ADJUSTABLE
MOTOR PULLEY
FIXED
BLOWER PULLEY
BELTS
HP
SERVICE
FACTOR
FRAME
SIZE
EFFICIENCY
(%)
PITCH
DIA.
(IN.)
BORE
(IN.)
PITCH
DIA.
(IN.)
BORE
(IN.)
PITCH
LENGTH
(IN.)
DESIG-
NATION
QTY
DCG090
975-1220
2 1.20 56 82.0 3.4 - 4.4 7/8 6.2 1 50.3 A48 1
DCG102
2
3
1.20 56 82.0 3.4 - 4.4 7/8 6.2 1 50.3 A48 1
DCG120 860-1090
2
3
1.20 56 82.0 3.4 - 4.4 7/8 7.0 1 57.3 A55 1
DCG150
860-1090 3 1.20 56 82.0 3.4 - 4.4 7/8 7.0 1 57.3 A55 1
960-1140 5 1.15 184 82.0 4.9 - 5.9 1-1/8 8.9 1 62.8
BX61
(Notched)
1
* All motors are 1750 RPM, have solid bases and are inherently protected. These motors can be selected to operate into their service factor because they are located in the moving air,
upstream of any heating device.
TABLE 9
- BLOWER MOTOR AND DRIVE DATA
BLOWER
SPEED,
RPM
CFM
4000 4500 5000 5500 6000
ESP BHP KW ESP BHP KW ESP BHP KW ESP BHP KW ESP BHP KW
960 1.00 2.14 2.00 0.70 2.43 2.27 0.40 2.72 2.54 0.11 3.03 2.83 - - -
1000 1.20 2.33 2.17 0.93 2.62 2.45 0.65 2.91 2.72 0.35 3.24 3.03 0.16 4.20 3.91
1050 1.42 2.55 2.37 1.14 2.86 2.67 0.85 3.17 2.96 0.62 4.06 3.79 0.39 4.53 4.22
1090 1.63 2.72 2.54 1.34 3.06 2.86 1.10 3.78 3.53 0.78 4.28 3.99 0.58 4.79 4.46
1105 1.74 3.08 2.87 1.47 3.45 3.22 1.18 3.88 3.62 0.85 4.35 4.06 0.66 4.89 4.56
1140 1.91 3.25 3.03 1.63 3.66 3.41 1.35 4.11 3.83 1.02 4.53 4.22 0.85 5.12 4.77
MODEL DCG150
- (SIDE DUCT APPLICATIONS)
BLOWER
SPEED,
RPM
CFM
4000 4500 5000 5500 6000
ESP BHP KW ESP BHP KW ESP BHP KW ESP BHP KW ESP BHP KW
960 0.772.142.000.402.432.270.042.722.54------
1000 0.97 2.33 2.17 0.63 2.62 2.45 0.29 2.91 2.72 ------
1050 1.19 2.55 2.37 0.84 2.86 2.67 0.49 3.17 2.96 0.26 4.06 3.79 - - -
1090 1.40 2.72 2.54 1.04 3.06 2.86 0.74 3.78 3.53 0.42 4.28 3.99 0.18 4.79 4.46
1105 1.51 3.08 2.87 1.17 3.45 3.22 0.82 3.88 3.62 0.49 4.35 4.06 0.26 4.89 4.56
1140 1.68 3.25 3.03 1.33 3.66 3.41 0.99 4.11 3.83 0.66 4.53 4.22 0.45 5.12 4.77
NOTES: Blower performance includes a wet evaporator coil, 2" filters and the maximum number of heat exchangers.
Refer to Table 7 for the resistance of the unit accessories.
ESP = External Static Pressure available for the supply and return air duct sytem. All internal unit resistances have been deducted from the total static pressure of the blower.
MODEL DCG150
- (BOTTOM DUCT APPLICATIONS)
= Larger Horsepower Alternate Motor Required.
530.18-N10Y
12 Unitary Products Group
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