Specifications
Catalog WSC/WDC-4 65
Condenser
With positive pressure systems, the pressure variance with temperature is always predictable, and
the vessel design and relief protection are based upon pure refrigerant characteristics. Negative
pressure systems are not ASME designed, inspected and stamped. R-134a requires ASME vessel
design, inspection and testing and uses spring-loaded pressure relief valves. Negative pressure
units use rupture disks. When an over pressure condition occurs, the rupture disk is permanently
destroyed. Spring-loaded relief valves purge only the amount of refrigerant required to reduce the
system pressure to the valve setting level and then close.
Refrigerant side design pressure is 200 psi (1380 kPa) on WSC units and 225 psi (1552 kPa) on
WDC units. Standard water side design pressure is 150 psi (1034 kPa) on all vessels. 300 psi
(2068 kPa) is available as an option.
Pumpdown
To facilitate compressor service, all McQuay centrifugal chillers are designed to permit
pumpdown and isolation of the entire refrigerant charge in the unit’s condenser. Dual compressor
units, and single compressor units equipped with the optional suction shutoff valve, can also be
pumped down into the evaporator. No separate pumpout receiver is required on most
installations.
Table 11, Condenser Physical Data
Condenser
Code
WSC WDC
Pumpdown
Capacity
lb (kg)
Water
Volume
gal (L)
Vessel Dry
Weight
lb (kg)
Number
of Relief
Valves
Add for
MWB
lb (kg)
MWB Cover
Only,
Weight
lb (kg)
C1609 X 468 (213) 24 (92) 1589 (718) 2 283 (128) 81 (37)
C1612 X 677 (307) 33 (123) 1870 (847) 2 283 (128) 81 (37)
C1809 X 597 (271) 34 (128) 1835 (831) 2 402 (182) 124 (56)
C1812 X 845 (384) 44 (166) 2183 (989) 2 402 (182) 124 (56)
C2009 X 728 (330) 47 (147) 2230 (1010) 2 478 (216) 148 (67)
C2012 X 971 (440) 62 (236) 2677 (1213) 2 478 (216) 148 (67)
C2209 X 822 (372) 60 (228) 2511 (1137) 2 478 (216) 148 (67)
C2212 X 1183 (537) 76 (290) 3031 (1373) 2 478 (216) 148 (67)
C2212 X 1110 (504) 89 (337) 3075 (1395) 2 478 (216) 148 (67)
C2216 X 1489 (676) 114 (430) 3861 (1751) 2 478 (216) 148 (67)
C2416 X 1760 (799) 143 (540) 4647 (2188) 2 685 (310) 230 (104)
C2609 X 1242 (563) 89 (335) 3210 (1454) 2 902 (408) 302 (137)
C2612 X 1656 (751) 111 (419) 3900 (1767) 2 902 (408) 302 (137)
C2616 X 2083 (945) 159 (603) 5346 (2425) 2 902 (408) 302 (137)
C3009 X 1611 (731) 114 (433) 4356 (1973) 2 1420 (643) 517 (234)
C3012 X 2148 (975) 144 (545) 5333 (2416) 2 1420 (643) 517 (234)
C3016 X 2789 (1265) 207 (782) 6752 (3063) 4 1420 (643) 517 (234)
C3612 X 2963 (1344) 234 (884) 7508 (3401) 2 2115 (958) 805 (364)
C3616 X 3703 (1725) 331 (1251) 9575 (4343) 4 2115 (958) 805 (364)
C4212 X 3796 (1722) 344 (1302) 10267 (4651) 2 2836 (1285) 1181 (535)
C4216 X 5010 (2273) 475 (1797) 12662 (5743) 4 2836 (1285) 1181 (535)
C4220 X 5499 (2494) 634 (2401) 17164 (7785) 4 2836 (1285) 1181 (535)
C4812 X 4912 (2228) 491 (1855) 13077 (5924) 4 4578 (2074) 1837 (8320
C4816 X 5581 (2532) 717 (2715) 18807 (8530) 4 4578 (2074) 1837 (8320
C4820 X 7034 (3191) 862 (3265) 23106 (10481) 4 4578 (2074) 1837 (8320
Notes:
1. Condenser pumpdown capacity based on 90% full at 90°F.
2. Vessel weight includes the shell, maximum tubes, and standard heads, no refrigerant.
3. MWB, marine water box, weight add is the water box weight minus a standard dished head weight.
Compressor
Table 12, Compressor Weights
Compressor Size
048/050 063 079 087 100 113 126
Weight lb (kg)
870
(390)
3200
(1440)
3200
(1440)
3200
(1440)
6000
(2700)
6000
(2700)
6000
(2700)