Physical Data And Weights - Daikin DWSC079 Installation, Operation And Maintenance Manual

Single/dual compressor centrifugal chillers
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Physical Data and Weights

Evaporator
The standard insulation of cold surfaces includes the evaporator and non-connection water head, suction piping,
compressor inlet, motor housing, and motor coolant outlet line.
Insulation is UL recognized (File # E55475). It is 3/4" thick ABS/PVC flexible foam with a skin. The K factor is 0.28
at 75°F. 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, or has been tested in accordance, with the following:
Refrigerant-side design pressure is 200 psi (1380 kPa) on DWSC units and 180 psi (1242 kPa) on DWDC units. Water-
side is 150 psi (1034 kPa) on all.
In the event insulation is to be field-installed, none of the cold surfaces identified above will be factory insulated.
Required field insulation is shown beginning on page 20. Approximate total square footage of insulation surface
required for individual packaged chillers is tabulated by evaporator code and can be found below.
Table 2, Evaporator Physical Data
Evaporator
Code
E2209
E2212
E2212
E2216
E2412
E2416
E2609
E2612
E2612
E2616
E3009
E3012
E3016
E3609
E3612
E3616
E3620
E4212
E4216
E4220
E4812
E4816
E4820
Refrigerant charge is approximate since the actual charge will depend on other variables. Actual charge will be shown on the unit nameplate.
1.
Water capacity is based on standard tube configuration and standard dished heads.
2.
The evaporator charge includes the maximum condenser charge available with that evaporator and is therefore the maximum charge for a total unit
3.
with the evaporator. Actual charge for a specific selection can vary with tube count and can be obtained from the Daikin Selection Program. The
program will not allow a selection where the unit charge exceeds the condenser pumpdown capacity.
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. R-134a requires ASME vessel design, inspection and
testing and uses spring-loaded pressure relief valves. When an over pressure condition occurs, spring-loaded relief
valves purge only that refrigerant required to reduce system pressure to their set pressure, and then close.
ASTM-C-177
ASTM-D-1056-91-2C1
CAN/ULC S102-M88
Refrigerant
Charge
DWSC
DWDC
lb. (kg)
X
729 (331)
X
500 (227)
X
645 (291)
X
1312 (595)
X
1005 (456)
X
1424 (646)
X
531 (249)
X
708 (321)
X
925 (418)
X
1542 (700)
X
676 (307)
X
901 (409)
X
2117 (960)
X
988 (720)
X
1317 (597)
X
3320 (1506)
4150 (1884)
X
1757 (797)
X
4422 (2006)
X
4713 (2138)
X
2278 (1033)
X
4690 (2128)
X
5886 (2670)
ASTM-C-534 Type 2
ASTM E 84
Evaporator
Insulation
Water
Area
Capacity, gal
Sq. Ft. (m
(L)
54 (206)
66 (6.1)
45 (170)
90 (8.3)
63 (240)
90 (8.3)
79 (301)
144 (13.4)
88 (335)
131 (12.1)
110 (415)
157 (14.6)
54 (295)
76 (7.1)
72 (273)
102 (9.4)
101 (381)
102 (9.4)
126 (478)
162 (15.0)
67 (252)
86 (8.0)
89 (336)
115 (10.6)
157 (594)
207 (19.2)
118 (445)
155 14.4)
152 (574)
129 (11.9)
243 (918)
239 (22.2)
434 (1643)
330 (30.6)
222 (841)
148 (13.7)
347 (1313)
264 (24.5)
481 (1819)
330 (30.6)
327 (1237)
169 (15.6)
556 (2106)
302 (28.1)
661 (2503)
377 (35.0)
UL 94-5V
MEA 186-86-M Vol. N
Vessel Weight
Number of
lb. (kg)
Relief Valves
2
)
3285 (1488)
2
2877 (1305)
2
3550 (1609)
2
4200 (1903)
4
4410 (1999)
2
5170 (2343)
4
2730 (1238)
2
3640 (1651)
2
4745 (2150)
2
5645 (2558)
4
3582 (1625)
2
4776 (2166)
2
7085 (3211)
4
5314 (2408)
2
6427 (2915)
4
9600 (4351)
4
12500 (5675)
2
8679 (3937)
4
12215 (5536)
4
15045 (6819)
6
10943 (4964)
4
16377 (7429)
6
17190 (7791)
6
D–EIMWC00808-16HU - 22/64

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