265485-XTG-B-1208
22
Johnson Controls Unitary Products
NOTES FOR TABLES 9 THROUGH 16:
•
“Turns Open” refers to the setting of the variable pitch
motor sheave, where “0 Turns Open” is fully closed.
•
Blower performance includes dry coil and 2” (51mm)
throw-away filters.
•
Blower performance for gas heat includes the maximum
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.
TABLE 15: BLOWER PERFORMANCE 7-1/2 TON OPTIONAL MOTOR - 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
0.2
-
-
-
-
-
-
-
-
-
-
-
-
3786
1702
1.83
3476
1489
1.60
0.4
-
-
-
-
-
-
-
-
-
3727
1791
1.92
3409
1570
1.68
3099
1357
1.46
0.6
-
-
-
3994
2117
2.27
3661
1881
2.02
3335
1652
1.77
3018
1431
1.54
2708
1218
1.31
0.8
-
-
-
3590
1969
2.11
3256
1733
1.86
2931
1504
1.61
2613
1283
1.38
2304
1070
1.15
1.0
3516
2053
2.20
3174
1809
1.94
2841
1573
1.69
2515
1344
1.44
2198
1123
1.21
-
-
-
1.2
3091
1880
2.02
2749
1636
1.76
2416
1400
1.50
2090
1171
1.26
-
-
-
-
-
-
1.4
2658
1692
1.82
2316
1448
1.55
-
-
-
-
-
-
-
-
-
-
-
-
1.6
2218
1486
1.59
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TABLE 16: BLOWER PERFORMANCE 7-1/2 TON OPTIONAL MOTOR - 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)
50
-
-
-
-
-
-
-
-
-
-
-
-
1.79
1.70
1.36
1.64
1.49
1.19
100
-
-
-
-
-
-
-
-
-
1.76
1.79
1.43
1.61
1.57
1.26
1.46
1.36
1.09
149
-
-
-
1.89
2.12
1.69
1.73
1.88
1.50
1.57
1.65
1.32
1.42
1.43
1.15
1.28
1.22
0.97
199
-
-
-
1.69
1.97
1.58
1.54
1.73
1.39
1.38
1.50
1.20
1.23
1.28
1.03
1.09
1.07
0.86
249
1.66
2.05
1.64
1.50
1.81
1.45
1.34
1.57
1.26
1.19
1.34
1.08
1.04
1.12
0.90
-
-
-
299
1.46
1.88
1.50
1.30
1.64
1.31
1.14
1.40
1.12
0.99
1.17
0.94
-
-
-
-
-
-
349
1.25
1.69
1.35
1.09
1.45
1.16
-
-
-
-
-
-
-
-
-
-
-
-
398
1.05
1.49
1.19
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-