035-18940-000-B-1003
30
Unitary Products Group
NOTES: 1.Blower performance includes a gas-fired heat exchanger, fixed outdoor air, two-inch T/A filters and a dry evaporator coil.
2.Refer to the additional Static Resistances table.
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.
TABLE 14: SUPPLY AIR BLOWER PERFORMANCE (25 TON) - COOLING APPLICATIONS
300 MBH - BOTTOM DUCT CONNECTIONS
DM300 UNIT - DOWNFLOW DUCT CONNECTIONS (CFM)
BLOWER
SPEED (rpm)
PULLEY
TURNS OPEN
7500 CFM
8750 CFM
10000 CFM
ESP (iwg) OUTPUT (bhp) INPUT (kW)
ESP (iwg)
OUTPUT (bhp)
INPUT
(kW)
ESP (iwg) OUTPUT (bhp)
INPUT
(kW)
945
6.0
1.2
5.6
4.6
0.8
7.0
5.7
0.3
8.4
6.9
975
5.0
1.4
5.9
4.9
1.0
7.3
6.0
0.5
8.8
7.2
1005
4.0
1.6
6.2
5.1
1.2
7.7
6.3
0.7
9.2
7.6
1040
3.0
1.8
6.6
5.4
1.4
8.1
6.7
0.9
9.7
8.0
1070
2.0
2.0
6.9
5.7
1.6
8.5
7.0
1.1
10.2
8.3
1100
1.0
2.1
7.3
6.0
1.8
8.9
7.3
1.3
10.6
8.7
1130
0.0
2.3
7.6
6.2
2.0
9.3
7.6
1.5
11.0
9.0
DM300 UNIT - DOWNFLOW DUCT CONNECTIONS (m
3
/s)
BLOWER
SPEED (rpm)
PULLEY
TURNS OPEN
3.53 m
3
/Sec. 4.13
m
3
/Sec.
4.72 m
3
/Sec.
ESP (Pa) OUTPUT (bhp) INPUT (kW)
ESP (Pa)
OUTPUT (bhp)
INPUT
(kW)
ESP (Pa) OUTPUT(bhp)
INPUT
(kW)
945
6.0
303
5.6
4.6
198
7.0
5.7
71
8.4
6.9
975
5.0
347
5.9
4.9
244
7.3
6.0
120
8.8
7.2
1005
4.0
391
6.2
5.1
291
7.7
6.3
169
9.2
7.6
1040
3.0
443
6.6
5.4
347
8.1
6.7
228
9.7
8.0
1070
2.0
489
6.9
5.7
396
8.5
7.0
280
10.2
8.3
1100
1.0
536
7.3
6.0
445
8.9
7.3
332
10.6
8.7
1130
0.0
583
7.6
6.2
495
9.3
7.6
385
11.0
9.0
DM300 UNIT - DOWNFLOW DUCT CONNECTIONS - GAS HEAT MODELS (CFM)
BLOWER
SPEED (rpm)
PULLEY
TURNS OPEN
7500 CFM
8750 CFM
10000 CFM
ESP (iwg) OUTPUT (bhp) INPUT (kW)
ESP (iwg)
OUTPUT (bhp)
INPUT
(kW)
ESP (iwg) OUTPUT (bhp)
INPUT
(kW)
945
6.0
1.0
5.6
4.6
0.3
7.0
5.7
-
-
-
975
5.0
1.2
5.9
4.9
0.5
7.3
6.0
-
-
-
1005
4.0
1.4
6.2
5.1
0.7
7.7
6.3
-
-
-
1040
3.0
1.6
6.6
5.4
0.9
8.1
6.7
0.2
9.7
8.0
1070
2.0
1.8
6.9
5.7
1.1
8.5
7.0
0.4
10.2
8.3
1100
1.0
2.0
7.3
6.0
1.3
8.9
7.3
0.6
10.6
8.7
1130
0.0
2.2
7.6
6.2
1.5
9.3
7.6
0.8
11.0
9.0
DM300 UNIT - DOWNFLOW DUCT CONNECTIONS - GAS HEAT MODELS (m
3
/s)
BLOWER
SPEED (rpm)
PULLEY
TURNS OPEN
3.53 m
3
/sec.
4.13 m
3
/sec.
4.72 m
3
/sec.
ESP (Pa) OUTPUT (bhp) INPUT (kW)
ESP (Pa)
OUTPUT (bhp)
INPUT
(kW)
ESP (Pa) OUTPUT (bhp)
INPUT
(kW)
945
6.0
258
5.6
4.6
87
7.0
5.7
-
-
-
975
5.0
301
5.9
4.9
133
7.3
6.0
-
-
-
1005
4.0
345
6.2
5.1
180
7.7
6.3
-
-
-
1040
3.0
398
6.6
5.4
236
8.1
6.7
43
9.7
8.0
1070
2.0
444
6.9
5.7
285
8.5
7.0
94
10.2
8.3
1100
1.0
490
7.3
6.0
334
8.9
7.3
146
10.6
8.7
1130
0.0
537
7.6
6.2
384
9.3
7.6
199
11.0
9.0
