30 Product Manual PM WSC/WDC
Evaporator
The insulation of cold surfaces includes the evaporator and non-connection water head, suction piping,
compressor inlet, motor housing, and motor coolant suction line.
The insulation used is UL recognized (Card No. E61978). It is 3/4" thick vinyl nitrate polymer having a K factor
of 0.28 at 75°F. The sheet insulation is fitted and cemented in place forming a vapor barrier, then painted with a
resilient epoxy finish that resists cracking.
The insulation complies to appropriate requirements or has been tested in accordance with the following:
HH-I-573 (GSA-FSS) ASTM-D-1149 ASTM-C-177
ASTM-C-534 ASTM-D-1056 UL 94-5V
ASTM-C-355
Refrigerant side design pressure is 200 psi (1380 kPa), water side is 150 psi (1034 kPa).
In the event insulation is to be field installed, none of the cold surfaces identified above will be factory
insulated. Approximate total square footage of insulation surface required for individual packaged chillers is
tabulated by evaporator code and may be found below.
Evaporator Physical Data
Evaporator
Code
WSC WDC
Refrigerant Charge
lb (kg)
Evaporator Water
Capacity, gal (L)
Insulation Area
Sq Ft (m
2
)
Vessel Weight
lb (kg)
E1812 X 347 (158) 27 (103) 78 (7.2) 2370 (1075)
E1812 X 578 (262) 44 (165) 85 (7.9) 2920 (1323)
E1816 X 771 (349) 59 (220) 113 (10.5) 3893 (1764)
E2009 X 561 (254) 34 (164) 82 (7.6) 3026 (1371)
E2012 X 420 (190) 37 9139) 84 (7.8) 2713 (1231)
E2012 X 585 (265) 51 (193) 84 (7.8) 3245 (1471)
E2209 X 729 (331) 54 (206) 66 (6.1) 3285 (1488)
E2212 X 500 (227) 45 (170) 90 (8.3) 2877 (1305)
E2212 X 645 (291) 63 (240) 90 (8.3) 3550 (1609)
E2216 X 1312 (595) 79 (301) 144 (13.4) 4200 (1903)
E2412 X 1005 (456) 88 (335) 131 (12.1) 4410 (1999)
E2416 X 1424 (646) 110 (415) 157 (14.6) 5170 (2343)
E2609 X 531 (249) 54 (295) 76 (7.1) 2730 (1238)
E2612 X 708 (321) 72 (273) 102 (9.4) 3640 (1651)
E2612 X 925 (418) 101 (381) 102 (9.4) 4745 (2150)
E2616 X 1542 (700) 126 (478) 162 (15.0) 5645 (2558)
E3009 X 676 (307) 67 (252) 86 (8.0) 3582 (1625)
E3012 X 901 (409) 89 (336) 115 (10.6) 4776 (2166)
E3016 X 2117 (960) 157 (594) 207 (19.2) 7085 (3211)
E3609 X 988 (720) 118 (445) 155 14.4) 5314 (2408)
E3612 X 1317 (597) 152 (574) 129 (11.9) 6427 (2915)
E3616 X 3320 (1506) 243 (918) 239 (22.2) 9600 (4351)
E4212 X 1757 (797) 222 (841) 148 (13.7) 8679 (3937)
E4216 X 4422 (2006) 347 (1313) 264 (24.5) 12215 (5536)
E4220 X 4713 (2138) 481 (1819) 330 (30.6) 15045 (6819)
E4224 X 5656 (2565) 561 (2123) 396 (36.7) 17880 (8103)
E4812 X 2278 (1033) 327 (1237) 169 (15.6) 10943 (4964)
E4816 X 4690 (2128) 556 (2106) 302 (281) 16377 (7429)
E4820 X 5886 (2670) 661 (2503) 377 (35.0) 17190 (7791)
E4824 X 7063 (3204) 766 (2900) 452 (41.9) 20430 (9259)
Notes:
1. Refrigerant charge is approximate since the actual charge will depend on other variables. It will be shown on the unit name tag.
2. Water capacity is based on standard tube configuration and standard heads.
3. The evaporator charge includes the maximum condenser charge available with that evaporator and is therefore the maximum charge for a
unit with the evaporator. Actual charge for a specific selection can vary with tube count and can be obtained from MS-85 Selection
Program. The program will not allow a selection where the unit charge exceeds the condenser pumpdown capacity.
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