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5.3 Required Refrigerant Line Length
Determine required line length and lift. You will
need this later in STEP 2 of Section 14.
Total Line Length = __________ Ft.
Total Vertical Change (lift) = __________ Ft.
5.4 Refrigerant Line Insulation
Important: The Vapor Line must always be
insulated. DO NOT allow the Liquid Line and
Vapor Line to come in direct (metal to metal)
contact.
5.5 Reuse Existing Refrigerant Lines
!
CAUTION
If using existing refrigerant lines make certain that
all joints are brazed, not soldered.
For retrofit applications, where the existing
indoor evaporator coil and/or refrigerant lines
will be used, the following precautions should
be taken:
• Ensure that the indoor evaporator coil and
refrigerant lines are the correct size.
• Ensure that the refrigerant lines are free of
leaks, acid, and oil.
Important: For more information see publica-
tion number SS-APG006-EN.
88-A4AC4001-1G-EN
Line Length
Vapor Line
Liquid Line
Insulation
7
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