Daikin DWSC079, Инструкция по установке, эксплуатации и обслуживанию

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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:
ASTM-C-177 ASTM-C-534 Type 2 UL 94-5V
ASTM-D-1056-91-2C1 ASTM E 84 MEA 186-86-M Vol. N
CAN/ULC S102-M88
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
DWSC DWDC
Refrigerant
Charge
lb. (kg)
Evaporator
Water
Capacity, gal
(L)
Insulation
Area
Sq. Ft. (m
2
)
Vessel Weight
lb. (kg)
Number of
Relief Valves
E2209 X 729 (331) 54 (206) 66 (6.1) 3285 (1488) 2
E2212 X 500 (227) 45 (170) 90 (8.3) 2877 (1305) 2
E2212 X 645 (291) 63 (240) 90 (8.3) 3550 (1609) 2
E2216 X 1312 (595) 79 (301) 144 (13.4) 4200 (1903) 4
E2412 X 1005 (456) 88 (335) 131 (12.1) 4410 (1999) 2
E2416 X 1424 (646) 110 (415) 157 (14.6) 5170 (2343) 4
E2609 X 531 (249) 54 (295) 76 (7.1) 2730 (1238) 2
E2612 X 708 (321) 72 (273) 102 (9.4) 3640 (1651) 2
E2612 X 925 (418) 101 (381) 102 (9.4) 4745 (2150) 2
E2616 X 1542 (700) 126 (478) 162 (15.0) 5645 (2558) 4
E3009 X 676 (307) 67 (252) 86 (8.0) 3582 (1625) 2
E3012 X 901 (409) 89 (336) 115 (10.6) 4776 (2166) 2
E3016 X 2117 (960) 157 (594) 207 (19.2) 7085 (3211) 4
E3609 X 988 (720) 118 (445) 155 14.4) 5314 (2408) 2
E3612 X 1317 (597) 152 (574) 129 (11.9) 6427 (2915) 4
E3616 X 3320 (1506) 243 (918) 239 (22.2) 9600 (4351) 4
E3620 4150 (1884) 434 (1643) 330 (30.6) 12500 (5675) 2
E4212 X 1757 (797) 222 (841) 148 (13.7) 8679 (3937) 4
E4216 X 4422 (2006) 347 (1313) 264 (24.5) 12215 (5536) 4
E4220 X 4713 (2138) 481 (1819) 330 (30.6) 15045 (6819) 6
E4812 X 2278 (1033) 327 (1237) 169 (15.6) 10943 (4964) 4
E4816 X 4690 (2128) 556 (2106) 302 (28.1) 16377 (7429) 6
E4820 X 5886 (2670) 661 (2503) 377 (35.0) 17190 (7791) 6
1.
Refrigerant charge is approximate since the actual charge will depend on other variables. Actual charge will be shown on the unit nameplate.
2.
Water capacity is based on standard tube configuration and standard dished heads.
3.
The evaporator charge includes the maximum condenser charge available with that evaporator and is therefore the maximum charge for a total unit
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.