Henry Catalogue 2010 - page 99

Industrial & Commercial Refrigeration Products
800.96.HENRY
®
C4
Approach °F
7
8
9
10
11
Max
No.
Circuits
12
Cat.
No.
Nom
Tons
MBH GPM PSI MBH GPM PSI MBH GPM PSI MBH GPM PSI MBH GPM PSI MBH GPM PSI
Single
EM005
5
28
5.6 0.3 43 8.6 0.7 60 12.0 1.4 72 14.4 2.0 85 17.0 2.7 99 19.8 3.6
EM010
10
50 10.0 0.7 73 14.5 1.3 106 21.1 2.7 130 25.9 3.9 155 30.9 5.5 175 34.9 7.0
EM015
15 130 25.9 3.1 165 32.9 4.9 196 39.1 6.9 228 45.5 9.2 261 52.1 11.9 290 57.9 14.6
EM020
20 171 34.1 2.4 216 43.0 3.8 259 51.6 5.3 299 59.6 7.0 341 68.0 9.0 385 76.8 11.3
EM025
25 212 42.2 4.1 253 50.4 5.8 300 59.8 8.0 340 67.8 10.1 386 77.0 12.9 435 86.8 16.2
EM030
30 255 50.8 4.4 304 60.6 6.1 360 71.8 8.4 407 81.2 10.6 467 93.2 13.8 -
-
-
EM010
10
50 10.0 0.7 73 14.5 1.3 103 20.5 2.6 120 23.9 3.5 139 27.7 4.6 158 31.5 5.8
Dual
EM015
15 118 23.5 2.5 146 29.1 3.8 173 34.5 5.3 198 39.5 6.8 226 45.1 8.8 254 50.7 11.0
EM020
20 162 32.3 2.2 206 41.1 3.4 252 50.2 5.0 292 58.2 6.7 333 66.4 8.6 375 74.8 10.7
EM025
25 212 42.2 4.1 253 50.4 5.8 300 59.8 8.0 340 67.8 10.1 386 77.0 12.9 435 86.8 16.2
EM030
30 247 49.2 4.1 295 58.8 5.7 348 69.4 7.9 395 78.8 10.0 453 90.4 13.0 507 101.2 16.2
EM035
35 241 48.0 2.3 324 64.6 4.0 403 80.3 6.0 460 91.7 7.7 520 103.7 9.7 585 116.7 12.1
Single
or
Dual
EM050
50 440 87.7 4.1 530 105.6 5.8 620 123.6 7.9 700 139.6 9.9 790 157.6 12.5 888 177.2 15.6
EM060
60 459 91.5 3.2 582 116.0 5.0 721 143.7 7.6 830 165.5 9.9 943 188.1 12.7 1062 211.9 16.0
EM075
75 620 123.5 3.5 757 150.9 5.2 905 180.4 7.3 1036 206.6 9.4 1187 236.8 12.2 1346 268.6 15.5
EM090
90 700 139.5 3.1 880 175.4 4.8 1080 215.3 7.1 1240 247.3 9.3 1405 280.3 11.8 1590 317.3 15.0
EM100
100 827 164.8 3.2 1032 205.7 5.0 1230 245.2 7.0 1410 281.2 9.0 1600 319.2 11.5 1796 358.4 14.4
EM125
125 1006 200.4 4.2 1242 247.5 6.2 1480 295.9 8.8 1686 336.2 11.2 1913 381.6 14.3 -
-
-
EM150
150 1175 234.1 3.6 1484 295.8 5.6 1800 358.9 8.1 2070 412.8 10.6 2360 470.8 13.6 -
-
-
EM185
185 1516 302.1 5.2 1853 369.3 7.6 2204 439.4 10.6 2503 499.2 13.5 -
-
-
-
-
-
EM225
225 1786 355.8 3.2 2229 444.3 4.9 2670 532.3 6.9 3046 607.5 8.9 3467 691.6 11.4 3900 778.2 14.3
EM300
300 2439 486.0 5.0 3003 598.5 7.4 2530 703.8 10.1 4069 811.5 13.2 4618 921.2 16.8 -
-
-
Capacity, GPM and Pressure Drop Data for 10°F Range R22
Catalog units presented above are designed for the listed ratings. Higher capacities may be possible with different baffle spacing's. Contact Factory.
The capacity data table above is based on R12 with water
range at 8°F and approach at 7-12°F.
Sizing
—To select the direct expansion chiller you must know:
1. Capacity at maximum load in thousands of BTU/HR (MBH)
[Capacity BTU/HR = GPM X RANGE X 500]
2. Water cooling range °F: inlet water temperature
minus
outlet water temperature.
3. Approach temperature °F: outlet water temperature
minus
refrigerant evaporating temperature.
The final selection may depend on the water side pressure drop
(psi), at the full GPM flow rate, being within acceptable limits.
See example below.
DUTY
SELECTION
750 GPM water
Range: (54-44) = 10°F Approach (44-32) = 12°F
Entering water temperature: 54°F
Capacity 750 GPM x 10° x 500 = 3750 MBH
Leaving water temperature: 44°F
From above table, select EM225; maximum capacity
Refrigerant evaporating temperature: 32°F
3900 MBH, requiring 778.2 GPM water with 14.3 PSI
Dual Circuit
pressure drop: Model EM225-18108-2.
Nominal Ratings
in tons refrigeration (Nom Tons) are based on:
54°F entering water minus 44°F leaving water (10° range)
35°F evaporating temperature (9° approach)
100°F entering liquid refrigerant with 7°F suction superheat
0.00005 fouling factor
Limitations
Minimum evaporating temperature ……………………………32°F
Maximum water entering temperature ………………………..75°F
The listed water chillers are designed for the ranges and
approach temperatures in the tables. Consult factory for
selections at different conditions.
SELECTION PROCEDURE
CHILLERS
Direct Expansion
1...,89,90,91,92,93,94,95,96,97,98 100,101,102,103,104,105,106,107,108,109,...119
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