Long Lineset Instructions

Page 25
PIPING INSTALLATION
Refrigerant lines must not transmit equipment vibration to
any part of the structure. Lines should be supported by
isolation hangers. See figure 20. In no case should
refrigeration lines be left unsupported and free to touch the
structure at any point. Where lines pass through roofs,
walls, floors or sills, or where they come in contact with duct
work, they should be properly isolated. If outside, the
isolation material should be properly waterproofed.
The piping must be supported securely at the proper
places. All piping should be supported with hangers that
can withstand the combined weight of pipe, fittings,
refrigerant and insulation. The hangers must be able to
keep the pipe in proper alignment, thus preventing any
droop.