Installation
Install the Gas Lines
Tool required: Open-end wrenches, 1", 1 1/8", 1 3/16"
Gas lines are shipped with protective dust plugs. Do not remove the plugs until the gas lines
are ready to be attached. All bending and routing of gas lines should take place with plugs in
place.
AVOID INJURY. Always wear eye protection when handling pressurized gas
lines and other pressurized equipment. Never apply heat to a pressurized gas
line or other pressurized components.
PREVENT EQUIPMENT DAMAGE. Damage to gas lines can result from
crimping by repeated bending and repositioning.
Be sure to have 99.995% pure helium gas available at the installation site in case
gas needs to be added to the system. See Refrigerant Quality in Specifications
in this manual.
1. Identification labels are furnished with the gas lines. Before installing the gas lines, identify
each with an appropriate label, SUPPLY (high pressure, color-coded red) or RETURN (low
pressure, color-coded green) by applying the label adjacent to each Aeroquip coupling. See
Figure 6.
Supply and return gas lines are identical. Labels are used to prevent making a
wrong connection at installation or at reassembly following maintenance.
Figure 6 Attach Identification Label
2. Arrange the system components so that the gas lines will be protected from stress and
traffic. Observe the minimum bend radius of 180 mm (7") when routing gas lines. Provide
supports where needed.
3. Remove the dust caps from the compressor’s supply and return gas couplings.
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