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Unitary Products 17
TABLE 12: DHG 20 TON SUPPLY AIR BLOWER PERFORMANCE
DHG240 - BOTTOM DUCT CONNECTIONS
1, 2
BLOWER
SPEED,
(RPM)
MOTOR
PULLEY
(TURNS
OPEN)
3
CFM
6000 7000 8000 9000 9400
ESP
4
BHP KW
ESP
4
BHP KW
ESP
4
BHP KW
ESP
4
BHP KW
ESP
4
BHP KW
208 VOLT AND STANDARD DRIVE
870
6.0
5
1.3 3.6 3.0 0.7 4.3 3.7 0.2 5.1 4.3 - - - - - -
900 5.0
1.4 3.8 3.2 0.9 4.7 4.0 0.4 5.6 4.7 - - - - - -
930 4.0
1.6 4.1 3.4 1.1 5.0 4.2 0.6 5.9 5.0 0.1 6.7 5.7 - - -
950 3.0
1.7 4.2 3.6 1.3 5.1 4.3 0.8 6.0 5.1 0.2 6.9 5.8 - - -
980 2.0
1.9 4.5 3.8 1.5 5.4 4.5 1.0 6.3 5.3 0.4 7.2 6.1 0.1 8.5 7.1
995 1.5
2.1 4.6 3.9 1.6 5.5 4.7 1.1 6.4 5.4 0.5 7.5 6.3 0.2 8.6 7.3
1015 1.0
2.2 4.8 4.0 1.7 5.7 4.8 1.2 6.6 5.6 0.7 7.8 6.6 - - -
208 VOLT AND HIGH SPEED DRIVE ACCESSORY
950 6.0
1.7 4.2 3.6 1.3 5.1 4.3 0.8 6.0 5.1 0.2 6.9 5.8 - - -
980 5.0
1.9 4.5 3.8 1.5 5.4 4.5 1.0 6.3 5.3 0.4 7.2 6.1 0.1 8.5 7.1
995 4.5
2.1 4.6 3.9 1.6 5.5 4.7 1.1 6.4 5.4 0.5 7.5 6.3 0.2 8.6 7.3
1025 3.5
2.3 4.9 4.1 1.8 5.8 4.9 1.3 6.7 5.7 0.7 8.0 6.7 - - -
1050 2.5
2.5 5.1 4.3 2.0 6.1 5.1 1.4 7.1 6.0 0.9 8.4 7.0 - - -
1065 2.0
2.6 5.3 4.4 2.1 6.3 5.3 1.5 7.3 6.2 1.0 8.6 7.2 - - -
1100 1.0
2.9 5.6 4.7 2.3 6.8 5.7 1.8 7.9 6.6 - - - - - -
230/460 VOLT AND STANDARD DRIVE
870
6.0
5
1.3 3.6 3.0 0.7 4.3 3.7 0.2 5.1 4.3 - - - - - -
900 5.0
1.4 3.8 3.2 0.9 4.7 4.0 0.4 5.6 4.7 - - - - - -
930 4.0
1.6 4.1 3.4 1.1 5.0 4.2 0.6 5.9 5.0 0.1 6.7 5.7 - - -
950 3.5
1.7 4.2 3.6 1.3 5.1 4.3 0.8 6.0 5.1 0.2 6.9 5.8 - - -
965 2.5
1.9 4.5 3.8 1.5 5.4 4.5 1.0 6.3 5.3 0.4 7.2 6.1 0.1 8.5 7.1
995 2.0
2.1 4.6 3.9 1.6 5.5 4.7 1.1 6.4 5.4 0.5 7.5 6.3 0.2 8.6 7.3
1015 1.5
2.2 4.8 4.0 1.7 5.7 4.8 1.2 6.6 5.6 0.6 7.8 6.6 - - -
1025 1.0
2.3 4.9 4.1 1.8 5.8 4.9 1.3 6.7 5.7 0.7 8.0 6.7 - - -
230/460 VOLT AND HIGH SPEED DRIVE ACCESSORY
950 6.0
1.7 4.2 3.6 1.3 5.1 4.3 0.8 6.0 5.1 0.2 6.9 5.8 - - -
980 5.0
1.9 4.5 3.8 1.5 5.4 4.5 1.0 6.3 5.3 0.4 7.2 6.1 0.1 8.5 7.1
995 4.5
2.1 4.6 3.9 1.6 5.5 4.7 1.1 6.4 5.4 0.5 7.5 6.3 0.2 8.6 7.3
1015 4.0
2.2 4.8 4.0 1.7 5.7 4.8 1.2 6.6 5.6 0.6 7.8 6.6 - - -
1025 3.5
2.3 4.9 4.1 1.8 5.8 4.9 1.3 6.7 5.7 0.7 8.0 6.7 - - -
1050 3.0
2.5 5.1 4.3 2.0 6.1 5.1 1.4 7.1 6.0 0.9 8.4 7.0 - - -
1065 2.5
2.6 5.3 4.4 2.1 6.3 5.3 1.5 7.3 6.2 1.0 8.6 7.2 - - -
1100 1.5
2.9 5.6 4.7 2.3 6.8 5.7 1.8 7.9 6.6 - - - - - -
1120 1.0
3.1 5.8 4.9 2.5 7.0 5.9 1.9 8.3 6.9 - - - - - -
1
Blower performance includes a gas -fired heat exchanger, fixed outdoor air, 2” T/A filters and a dry evaporator coil.
2
Refer to the Static Resistance table.
3
DO NOT close the pulley below one turn open.
4
ESP = External Static Pressure available for the supply and return air duct system. All internal unit resistances have been
deducted from the total static pressure of the blower.
5
The Factory Setting