Sumitomo HC-4E1 - Cooling and Refrigerant Specs; Gas Pressure Specifications

Specifications
18
Cooling Requirements
Cooling Water Inlet Temperature: 4° C to 27° C (40° F to 80° F)
Cooling Water Outlet Temperature: 40° C (104° F) maximum
Cooling Water Pressure: 210 kPa (30 psig) minimum
690 kPa (100 psig) maximum
Cooling Water Flow: 2.7 liters/min (0.7 gpm) minimum
Pressure Drop at Minimum Flow: 100 kPa (15 psid)
Water Chiller Cooling Capacity: 3.2 kW (11,000 BTU/hr)
Alternate Coolant: 50% pure ethylene glycol + 50% water
Ethylene glycol/water (50/50) flow rate: 3.5 liters/min (0.9 gpm) minimum
PREVENT EQUIPMENT DAMAGE. Use pure ethylene glycol/water (50/50)
mixture recommended by chiller manufacturer. Avoid using commercial
automotive antifreeze solutions. They may contain additives and grit material
that can damage the cooling system.
Refrigerant Quality
Refrigerant is 99.995% pure helium gas with a dew point less than -50° C (-58° F) at 2070 kPa
(300 psig).
PRESERVE YOUR WARRANTY and AVOID CONTAMINATION.
Specifications require the use of 99.995% pure helium gas with a dew point less
than -50º C (-58º F) at 2070 kPa (300 psig). Using a lesser quality of helium can
damage the system and void the warranty.
Helium Gas Pressures
Compressor
Only
HC-4E1 with
CH-202 Cold
Head
HC-4E1 with
CH-204S
Cold Head
HC-4E2 with
RDK-101D &
⌀
⌀⌀
⌀ ½” x 20 ft.
Flex Gas
Lines
HC
-
4E2 with
RDK-101D &
⌀
⌀⌀
⌀ ½” x >20 ft.
and ≤66 ft.
Flex Gas
Lines
Equalization
Pressure at
68°F:
1860 - 1900
kPa
(270 - 275
psig)
1790 - 1830
kPa
(260 - 265
psig)
1860 - 1900
kPa
(270 - 275
psig)
1650 - 1690
kPa
(240 - 245
psig)
1450 - 1480
kPa
(210 - 215
psig)
Operating
Supply
Pressure:
2070 - 2210
kPa
(300 - 320
psig)
1930 - 2070
kPa
(280 - 300
psig)
2000 - 2140
kPa
(290 - 310
psig)
1860 – 2200
kPa
(270 - 320
psig)
1860 - 2200
kPa
(270 - 320
psig)