TABLE 7 - SUPPLY AIR BLOWER PERFORMANCE (20 TON)
BLOWER
SPEED,
(RPM)
MOTOR
PULLEY
(TURNS
OPEN)*
CFM
6000
7000
8000
9000
9400
ESP
BHP
KW
ESP
BHP
KW
ESP
BHP
KW
ESP
BHP
KW
ESP
BHP
KW
208 VOLT AND STANDARD DRIVE
870
6.0**
0.4
2.1
1.8
0.1
2.3
2.0
-
-
-
-
-
-
-
-
-
900
5.0
0.8
3.2
2.7
0.5
3.5
2.9
0.2
3.8
3.2
-
-
-
-
-
-
930
4.0
1.1
4.1
3.4
0.9
4.5
3.8
0.6
4.9
4.1
0.1
5.1
4.3
-
-
-
950
3.0
1.3
4.6
3.9
1.1
5.1
4.3
0.8
5.5
4.6
0.4
5.9
5.0
-
-
-
980
2.0
1.6
5.3
4.5
1.4
5.8
4.9
1.2
6.3
5.3
0.7
6.9
5.8
0.2
7.3
6.1
1015
1.0
1.9
5.9
5.0
1.7
6.5
5.5
1.5
7.0
5.9
1.0
7.7
6.5
0.6
8.2
6.9
208 VOLT AND HIGH SPEED DRIVE ACCESSORY
950
6.0
1.3
4.6
3.9
1.1
5.1
4.3
0.8
5.5
4.6
0.4
5.9
5.0
-
-
-
980
5.0
1.6
5.3
4.5
1.4
5.8
4.9
1.2
6.3
5.3
0.7
6.9
5.8
0.2
7.3
6.1
1010
4.0
1.8
5.8
4.9
1.7
6.3
5.3
1.5
6.9
5.8
1.0
7.5
6.3
0.5
7.9
6.7
1020
3.5
1.9
6.1
5.1
1.8
6.5
5.5
1.6
7.1
6.0
1.1
7.8
6.6
0.6
8.3
7.0
1035
3.0
2.0
6.2
5.2
1.9
6.8
5.7
1.7
7.4
6.2
1.2
8.1
6.8
0.7
8.6
7.3
1050
2.5
2.1
6.4
5.4
2.0
7.0
5.9
1.8
7.6
6.4
1.3
8.3
7.0
-
-
-
1075
2.0
2.3
6.6
5.5
2.1
7.2
6.0
1.9
7.8
6.6
1.5
8.6
7.2
-
-
-
1100
1.0
2.4
6.7
5.6
2.2
7.3
6.1
2.1
7.9
6.7
-
-
-
-
-
-
230/460/575 VOLT AND STANDARD DRIVE
870
6.0**
0.4
2.1
1.8
0.1
2.3
2.0
-
-
-
-
-
-
-
-
-
900
5.0
0.8
3.2
2.7
0.5
3.5
2.9
0.2
3.8
3.2
-
-
-
-
-
-
930
4.0
1.1
4.1
3.4
0.9
4.5
3.8
0.6
4.9
4.1
0.1
5.1
4.3
-
-
-
950
3.5
1.3
4.6
3.9
1.1
5.1
4.3
0.8
5.5
4.6
0.4
5.9
5.0
-
-
-
980
2.5
1.6
5.3
4.5
1.4
5.8
4.9
1.2
6.3
5.3
0.7
6.9
5.8
0.2
7.3
6.1
1015
1.5
1.9
5.9
5.0
1.7
6.5
5.5
1.5
7.0
5.9
1.0
7.7
6.5
0.6
8.2
6.9
1025
1.0
2.0
6.1
5.1
1.8
6.6
5.6
1.6
7.3
6.1
1.1
7.9
6.7
0.7
8.6
7.3
230/460/575 VOLT AND HIGH SPEED DRIVE ACCESSORY
950
6.0
1.3
4.6
3.9
1.1
5.1
4.3
0.8
5.5
4.6
0.4
5.9
5.0
-
-
-
980
5.0
1.6
5.3
4.5
1.4
5.8
4.9
1.2
6.3
5.3
0.7
6.9
5.8
0.2
7.3
6.1
1015
4.0
1.9
5.9
5.0
1.7
6.5
5.5
1.5
7.0
5.9
1.0
7.7
6.5
0.6
8.2
6.9
1035
3.5
2.0
6.2
5.2
1.9
6.8
5.7
1.7
7.4
6.2
1.2
8.1
6.8
0.7
8.6
7.3
1050
3.0
2.1
6.4
5.4
2.0
7.0
5.9
1.8
7.6
6.4
1.3
8.3
7.0
-
-
-
1080
2.0
2.3
6.6
5.5
2.1
7.2
6.0
1.9
7.8
6.6
1.5
8.6
7.2
-
-
-
1100
1.5
2.4
6.7
5.6
2.2
7.3
6.1
2.1
7.9
6.7
-
-
-
-
-
-
1120
1.0
2.5
6.8
5.7
2.3
7.4
6.2
2.2
8.1
6.8
-
-
-
-
-
-
NOTES: 1. Blower performance includes fixed outdoor air, 2" T/A filters, a dry indoor coil and no electric heat.
2. Refer to Page 12 for additional static resistances.
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.
*
Do
NOT close the pulley below 1 turn open.
** Factory setting.
240 MBH - BOTTOM DUCT CONNECTIONS
511.06-N3Y
12
Unitary Products Group