York DM120 User Manual
036-21044-003-A-0304
28
Unitary Products
•
“Turns Open” refers to the setting of the variable pitch
motor sheave, where “0 Turns Open” is fully closed.
motor sheave, where “0 Turns Open” is fully closed.
•
Blower performance includes dry coil and 2” (51mm)
throw-away filters.
throw-away filters.
•
Blower performance for gas heat includes the maximum
number of heat tubes available for each tonnage.
number of heat tubes available for each tonnage.
•
ESP (External Static Pressure) given is that available for
the supply and return air duct system. All internal resis-
tances have been deducted from the total static pressure
of the blower.
the supply and return air duct system. All internal resis-
tances have been deducted from the total static pressure
of the blower.
TABLE 31: BLOWER PERFORMANCE 12-1/2 TON - DOWNSHOT (IMPERIAL)
ESP
(iwg)
Turns Open
0
1
2
3
4
5
CFM
Watts
BHP
CFM
Watts
BHP
CFM
Watts
BHP
CFM
Watts
BHP
CFM
Watts
BHP
CFM
Watts
BHP
0.4
5576
4015
4.32
5370
3547
3.80
5171
3197
3.43
5007
2884
3.09
4721
2515
2.70
4344
2145
2.30
0.6
5376
3839
4.12
5147
3376
3.62
4929
3022
3.24
4735
2704
2.90
4450
2353
2.52
4048
1991
2.13
0.8
5155
3652
3.92
4908
3197
3.43
4668
2841
3.05
4411
2501
2.68
4151
2183
2.34
3717
1829
1.96
1.0
4915
3456
3.71
4651
3013
3.23
4388
2656
2.85
4035
2281
2.45
3825
2008
2.15
-
-
-
1.2
4653
3253
3.49
4377
2823
3.03
4089
2467
2.65
3608
2051
2.20
-
-
-
-
-
-
1.4
4372
3046
3.27
4087
3621
2.82
3771
2277
2.44
-
-
-
-
-
-
-
-
-
1.6
4070
2837
3.04
3780
2437
2.61
-
-
-
-
-
-
-
-
-
-
-
-
1.8
3748
2629
2.82
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TABLE 32: BLOWER PERFORMANCE 12-1/2 TON - DOWNSHOT (METRIC)
ESP
(Pa)
Turns Open
0
1
2
3
4
5
m
3
/s
In
(kW)
Out
(kW)
m
3
/s
In
(kW)
Out
(kW)
m
3
/s
In
(kW)
Out
(kW)
m
3
/s
In
(kW)
Out
(kW)
m
3
/s
In
(kW)
Out
(kW)
m
3
/s
In
(kW)
Out
(kW)
100
2.63
4.01
3.21
2.53
3.55
2.84
2.44
3.20
2.56
2.36
2.88
2.31
2.23
2.51
2.01
2.05
2.15
1.72
149
2.54
3.84
3.07
2.43
3.38
2.70
2.33
3.02
2.42
2.23
2.70
2.16
2.10
2.35
1.88
1.91
1.99
1.59
199
2.43
3.65
2.92
2.32
3.20
2.56
2.20
2.84
2.27
2.08
2.50
2.00
1.96
2.18
1.75
1.75
1.83
1.46
249
2.32
3.46
2.76
2.20
3.01
2.41
2.07
2.66
2.12
1.90
2.28
1.83
1.81
2.01
1.61
-
-
-
299
2.20
3.25
2.60
2.07
2.82
2.26
1.93
2.47
1.97
1.70
2.05
1.64
-
-
-
-
-
-
349
2.06
3.05
2.44
1.93
2.63
2.10
1.78
2.28
1.82
-
-
-
-
-
-
-
-
-
399
1.92
2.84
2.27
1.78
2.44
1.95
-
-
-
-
-
-
-
-
-
-
-
-
448
1.77
2.63
2.10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-