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—5—
PERFORMANCE DATA
GROSS COOLING CAPACITIES (MBH)
BF
— Bypass Factor
CFM
— Cubic Ft per Minute
EWB
— Entering Wet Bulb (
°
F)
SHG
— Gross Sensible Capacity 1000 Btuh
TCG
— Gross Cooling Capacity 1000 Btuh
NOTES:
1. Contact manufacturer for cooling capacities at conditions other than
shown in table.
2. Formulas:
Leaving db = entering db —
Leaving wb = wb corresponding to enthalpy of air leaving coil (h
lwb
)
h
lwb
= h
ewb
—
where h
ewb
= enthalpy of air entering coil.
INDOOR
COIL AIR
SATURATED TEMPERATURE LEAVING EVAPORATOR (
°
F)
30 35 40 45 50
CFM EWB (
°
F) TCG SHG BF TCG SHG BF TCG SHG BF TCG SHG BF TCG SHG BF
CM5A/CM5B024
600
72 50.4 24.2 0.00 45.8 21.8 0.00 40.9 19.4 0.00 35.3 16.9 0.09 28.8 14.3 0.06
67 41.5 24.8 0.08 37.0 22.4 0.06 32.0 19.9 0.05 26.2 17.3 0.05 19.9 14.7 0.06
62 33.7 25.4 0.05 29.1 22.9 0.05 24.1 20.4 0.06 18.5 17.5 0.08 14.8 14.8 0.19
800
72 61.9 29.4 0.00 56.7 26.8 0.00 50.8 24.1 0.00 44.0 21.1 0.11 36.0 17.9 0.08
67 51.6 30.9 0.10 46.2 28.1 0.08 39.9 25.1 0.07 32.7 22.0 0.07 24.9 18.7 0.08
62 42.1 32.1 0.07 36.4 29.1 0.07 30.1 26.0 0.08 23.2 22.4 0.11 19.0 19.0 0.22
1000
72 71.5 33.8 0.00 65.4 30.9 0.00 58.6 27.8 0.00 51.1 24.7 0.12 42.2 21.2 0.10
67 59.7 36.0 0.12 53.7 33.0 0.10 46.7 29.8 0.09 38.4 26.2 0.09 29.2 22.3 0.10
62 49.2 38.1 0.09 42.7 34.7 0.09 35.4 31.1 0.10 27.6 26.9 0.13 22.9 22.9 0.25
CM5A/CM5B036
1000
72 74.8 35.4 0.00 68.7 32.5 0.00 61.7 29.3 0.00 54.0 26.1 0.11 44.8 22.5 0.09
67 62.6 37.7 0.10 56.4 34.7 0.09 49.2 31.4 0.08 40.8 27.7 0.07 31.3 23.7 0.09
62 51.3 39.7 0.08 44.7 36.3 0.08 37.5 32.7 0.09 29.1 28.3 0.12 23.9 23.9 0.24
1200
72 83.4 39.4 0.00 76.9 36.3 0.00 69.2 33.0 0.19 60.4 29.4 0.12 50.5 25.6 0.10
67 70.1 42.6 0.11 63.1 39.3 0.10 55.3 35.7 0.09 46.2 31.8 0.09 35.7 27.4 0.10
62 57.6 45.4 0.09 50.5 41.8 0.09 42.5 37.8 0.10 33.4 32.8 0.14 27.8 27.8 0.26
1400
72 90.6 42.8 0.00 83.6 39.7 0.00 75.5 36.2 0.17 65.9 32.4 0.13 55.4 28.4 0.12
67 76.3 46.9 0.12 68.9 43.5 0.11 60.3 39.6 0.11 50.8 35.6 0.10 39.6 30.9 0.12
62 62.9 50.5 0.10 55.4 46.7 0.11 46.9 42.5 0.12 37.4 37.1 0.16 31.5 31.5 0.29
CM5A/CM5B042
1000
72 77.4 36.7 0.00 71.5 33.8 0.00 64.7 30.7 0.00 56.8 27.4 0.11 47.8 23.8 0.08
67 65.2 39.2 0.09 59.0 36.1 0.08 51.6 32.7 0.07 43.3 29.0 0.06 33.6 25.0 0.07
62 54.2 41.6 0.07 47.4 38.1 0.07 39.9 34.4 0.07 31.2 29.9 0.09 25.5 25.5 0.21
1200
72 85.9 40.6 0.00 79.8 37.7 0.00 72.1 34.4 0.20 63.3 30.7 0.11 53.6 27.0 0.10
67 72.8 44.2 0.10 65.5 40.7 0.09 57.9 37.2 0.09 48.9 33.3 0.08 38.2 28.8 0.09
62 60.4 47.2 0.08 53.3 43.7 0.08 45.1 39.6 0.09 35.7 34.7 0.11 29.7 29.7 0.23
1400
72 93.1 44.0 0.00 86.6 41.1 0.00 78.5 37.6 0.16 69.1 33.9 0.12 58.5 29.8 0.11
67 79.0 48.5 0.11 71.5 45.0 0.10 63.1 41.2 0.10 53.6 37.2 0.09 42.3 32.5 0.10
62 65.7 52.4 0.09 58.1 48.7 0.10 49.6 44.4 0.10 39.9 39.2 0.13 33.6 33.6 0.25
CM5A/CM5B048
1200
72 86.4 40.9 0.00 79.2 37.4 0.00 71.2 33.8 0.00 62.0 29.9 0.11 51.3 25.7 0.09
67 72.3 43.5 0.11 64.9 39.8 0.09 56.5 35.8 0.08 46.7 31.5 0.07 36.0 27.1 0.09
62 59.6 45.8 0.08 51.5 41.6 0.08 42.7 37.2 0.09 34.2 32.8 0.11 28.6 28.6 0.20
1400
72 94.5 44.6 0.00 86.8 40.9 0.00 77.8 37.0 0.00 68.0 33.0 0.14 56.6 28.5 0.12
67 79.1 47.8 0.13 71.2 44.0 0.12 62.1 39.8 0.11 51.6 35.2 0.10 39.8 30.3 0.11
62 65.1 50.6 0.10 56.9 46.5 0.10 47.4 41.8 0.11 38.3 37.2 0.12 32.4 32.4 0.22
1600
72 101.0 47.6 0.00 93.1 43.9 0.00 83.7 39.9 0.00 73.1 35.6 0.16 61.2 31.0 0.14
67 84.9 51.6 0.15 76.3 47.5 0.14 67.0 43.3 0.13 55.9 38.6 0.12 43.2 33.4 0.13
62 70.0 55.1 0.12 61.5 50.9 0.12 51.5 46.0 0.13 42.4 41.6 0.14 36.0 36.0 0.25
sensible heat cap.
1.09 x CFM
total capacity (Btuh)
4.5 x CFM
3. Direct interpolation is permissible. Do not extrapolate.
4. SHC is based on 80
°
F db temperature of air entering coil.
Below 80
°
F db, subtract (Correction Factor x CFM)
from SHC. Above 80
°
F db, add (Correction Factor x CFM) to SHC
5. All data points are based on 10
°
F superheat leaving coil.
SHC CORRECTION FACTOR
Interpolation is permissible.
Correction Factor = 1.09 x (1 – BF) x (db – 80)
BYPASS
FACTOR
ENTERING AIR DRY-BULB TEMPERATURE (
°
F)
79 78 77 76 75 Under 75
81 82 83 84 85 Over 85
Correction Factor
0.10
0.20
0.30
0.98
0.87
0.76
1.96
1.74
1.53
2.94
2.62
2.29
3.92
3.49
3.05
4.91
4.36
3.82
Use formula
shown below.