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Legend and Notes for Tables 11A and 11C
LEGEND
NOTES:
1. Maximum allowable fan speed is 1100 rpm for unit sizes 028 and
034; 1200 rpm for all other sizes.
2. Fan performance is based on deductions for wet coil, clean 2-in.
filters, and unit casing. See table at right for factory-supplied filter
pressure drop.
3. Refer to fan motor and drive tables for additional data.
FACTORY-SUPPLIED PRESSURE DROP — ENGLISH
Legend and Notes for Tables 11B and 11D
LEGEND
ESP — External Static Pressure
NOTES:
1. Maximum allowable fan speed is 18.3 r/s for unit sizes 028 and
034; 20 r/s for all other sizes.
2. Fan performance is based on deductions for wet coil, clean
51-mm filters, and unit casing. See table at right for factory-sup-
plied filter pressure drop.
3. Refer to fan motor and drive tables for additional data.
FACTORY-SUPPLIED PRESSURE DROP — SI
Bhp — Brake Horsepower Input to Fan
ESP — External Static Pressure
UNIT
AIRFLOW
(Cfm)
PRESSURE DROP
(in. wg)
40RM
007
1,800 0.05
2,400 0.08
3,000 0.11
40RM
40RMQ
40RMS
008
2,250
3,000
3,750
0.07
0.11
0.15
40RMS
010
2,550 0.09
3,400 0.13
4,250 0.18
40RM
40RMQ
40RMS
012
3,000
4,000
5,000
0.11
0.17
0.23
40RM
40RMS
014
3,750 0.06
5,000 0.10
6,250 0.13
40RM
40RMQ
40RMS
016
4,500
6,000
7,500
0.08
0.12
0.17
40RM
40RMQ
40RMS
024
6,000
8,000
10,000
0.12
0.19
0.26
40RM
40RMQ
40RMS
028
7,500
10,000
12,500
0.15
0.22
0.30
40RM
40RMS
034
9,000 0.19
12,000 0.29
15,000 0.40
UNIT
AIRFLOW
(L/s)
PRESSURE DROP
(Pa)
40RM
007
850 13
1150 20
1450 28
40RM
40RMQ
40RMS
008
1000
1400
1800
17
27
38
40RMS
010
1200 21
1600 32
2000 45
40RM
40RMQ
40RMS
012
1450
1900
2350
28
42
56
40RM
40RMS
014
1750 15
2350 24
2950 33
40RM
40RMQ
40RMS
016
2100
2800
3500
20
30
42
40RM
40RMQ
40RMS
024
2900
3800
4700
32
47
64
40RM
40RMQ
40RMS
028
3500
4700
5900
36
55
76
40RM
40RMS
034
4250 47
5650 71
7050 98