52
Table 32 – COOLING CAPACITIES 2--STAGE COOLING 15 TONS
580J*16D (RTPF)
Ambient Temperature
85 95 105 115
EA (dB) EA (dB) EA (dB) EA (dB)
75 80 85 75 80 85 75 80 85 75 80 85
4500 Cfm
EAT (wb)
58
THC 156.6 156.6 175.2 149.4 149.4 169.1 141.6 141.6 160.2 133.3 133.3 150.9
SHC 134.7 154.9 175.2 129.8 149.4 169.1 123.0 141.6 160.2 115.7 133.3 150.9
62
THC 166.7 166.7 166.9 158.0 158.0 162.6 147.6 147.6 157.2 136.8 136.8 150.3
SHC 122.8 144.9 166.9 118.6 140.6 162.6 113.5 135.3 157.2 107.4 128.8 150.3
67
THC 184.1 184.1 184.1 175.6 175.6 175.6 165.6 165.6 165.6 154.5 154.5 154.5
SHC 101.6 123.7 145.7 98.1 120.2 142.3 94.0 116.1 138.2 89.4 111.5 133.6
72
THC 200.3 200.3 200.3 192.0 192.0 192.0 182.9 182.9 182.9 172.2 172.2 172.2
SHC 78.7 101.1 123.5 75.5 97.9 120.2 72.1 94.4 116.7 68.2 90.5 112.7
76
THC - 211.4 211.4 - 203.1 203.1 - 193.8 193.8 - 183.9 183.9
SHC - 82.2 107.0 - 79.3 103.8 - 76.0 100.2 - 72.6 96.5
5250 Cfm
EAT (wb)
58
THC 165.2 165.2 186.9 158.2 158.2 179.0 150.0 150.0 169.7 141.3 141.3 160.0
SHC 143.5 165.2 186.9 137.4 158.2 179.0 130.2 150.0 169.7 122.7 141.3 160.0
62
THC 172.3 172.3 181.7 163.4 163.4 176.9 153.1 153.1 169.3 143.4 143.4 161.4
SHC 131.6 156.6 181.7 127.1 152.0 176.9 120.5 144.9 169.3 114.1 137.8 161.4
67
THC 189.5 189.5 189.5 180.9 180.9 180.9 170.7 170.7 170.7 159.1 159.1 159.1
SHC 107.2 132.4 157.5 103.8 129.0 154.1 99.9 125.1 150.4 95.3 120.6 145.8
72
THC 205.0 205.0 205.0 196.5 196.5 196.5 187.1 187.1 187.1 176.4 176.4 176.4
SHC 80.9 106.1 131.3 77.7 102.9 128.1 74.4 99.5 124.7 70.6 95.8 121.0
76
THC - 215.4 215.4 - 206.8 206.8 - 197.1 197.1 - 186.9 186.9
SHC - 85.0 113.0 - 82.0 109.8 - 78.8 106.4 - 75.4 102.8
6000 Cfm
EAT (wb)
58
THC 172.7 172.7 195.4 165.5 165.5 187.3 157.1 157.1 177.8 148.1 148.1 167.7
SHC 150.0 172.7 195.4 143.8 165.5 187.3 136.4 157.1 177.8 128.6 148.1 167.7
62
THC 176.6 176.6 195.7 168.1 168.1 187.6 158.9 158.9 180.2 148.9 148.9 172.1
SHC 139.6 167.7 195.7 133.2 160.4 187.6 127.1 153.7 180.2 120.7 146.4 172.1
67
THC 193.6 193.6 193.6 184.8 184.8 184.8 174.7 174.7 174.7 162.7 162.7 162.7
SHC 112.3 140.3 168.3 108.9 137.0 165.2 105.2 133.5 161.7 100.7 129.0 157.3
72
THC 208.4 208.4 208.4 199.6 199.6 199.6 190.2 190.2 190.2 179.5 179.5 179.5
SHC 82.7 110.5 138.3 79.6 107.3 135.1 76.2 104.0 131.8 72.6 100.6 128.5
76
THC - 218.2 218.2 - 209.5 209.5 - 199.5 199.5 - 189.0 189.0
SHC - 87.5 118.6 - 84.5 115.2 - 81.1 111.3 - 77.5 107.3
6750 Cfm
EAT (wb)
58
THC 178.8 178.8 202.4 171.6 171.6 194.2 163.1 163.1 184.6 153.8 153.8 174.1
SHC 155.3 178.8 202.4 149.0 171.6 194.2 141.6 163.1 184.6 133.5 153.8 174.1
62
THC 181.0 181.0 203.6 173.0 173.0 197.5 163.8 163.8 190.1 153.9 153.9 181.1
SHC 144.1 173.9 203.6 139.1 168.3 197.5 133.3 161.7 190.1 126.7 153.9 181.1
67
THC 196.8 196.8 196.8 187.9 187.9 187.9 177.7 177.7 177.7 165.5 165.5 167.9
SHC 117.0 147.7 178.4 113.7 144.5 175.4 110.1 141.1 172.2 105.6 136.8 167.9
72
THC 211.0 211.0 211.0 202.2 202.2 202.2 192.5 192.5 192.5 181.8 181.8 181.8
SHC 84.3 114.5 144.7 81.2 111.5 141.7 77.9 108.1 138.4 74.4 104.9 135.4
76
THC - 220.2 220.2 - 211.5 211.5 - 201.3 201.3 - 190.6 190.6
SHC - 89.5 122.8 - 86.4 119.4 - 83.0 115.4 - 79.4 111.5
7500 Cfm
EAT (wb)
58
THC 183.9 183.9 208.2 176.6 176.6 199.8 168.2 168.2 190.3 158.6 158.6 179.5
SHC 159.7 183.9 208.2 153.3 176.6 199.8 146.0 168.2 190.3 137.7 158.6 179.5
62
THC 185.1 185.1 212.5 177.1 177.1 206.2 168.3 168.3 197.9 158.7 158.7 186.7
SHC 149.5 181.0 212.5 144.5 175.4 206.2 138.7 168.3 197.9 130.8 158.7 186.7
67
THC 199.3 199.3 199.3 190.3 190.3 190.3 180.0 180.0 181.7 167.8 167.8 177.8
SHC 121.3 154.6 187.9 118.1 151.6 185.1 114.4 148.1 181.7 110.1 144.0 177.8
72
THC 213.0 213.0 213.0 204.1 204.1 204.1 194.2 194.2 194.2 183.5 183.5 183.5
SHC 85.8 118.2 150.5 82.7 115.2 147.7 79.4 111.9 144.4 76.0 108.8 141.6
76
THC - 221.9 221.9 - 213.0 213.0 - 202.7 202.7 - 191.8 191.8
SHC - 91.2 126.5 - 88.2 123.1 - 84.7 119.2 - 81.2 115.3
LEGEND
Edb --- En tering Dry --- Bulb
Ewb --- Entering Wet --- Bu lb
kW --- Compressor Motor Power Input
Idb --- L eaving Dry --- Bulb
Iwb --- Leaving Wet --- Bulb
SHC --- Sensible Heat Capacity (1000 Btuh) Gross
TC --- Total Capacity (1000 Btuh) Gross
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
t
ldb
=t
edb
–
sensible capacity (Btuh)
1.10 x cfm
t
lwb
= Wet---bulb temperature corresponding to enthalpy of air
leaving evaporator coil (h
lwb
)
h
lwb
=h
ewb
–
total capacity (Btuh)
4.5 x cfm
580J