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XC13 SERIES
If the XC13 is being used with either a new or existing
indoor coil which is equipped with a liquid line which served
as a metering device (RFCI), the liquid line must be
replaced prior to the installation of the XC13 unit. Typically
a liquid line used to meter flow is 1/4" in diameter and
copper.
INSTALLING LINE SET
Line Set Isolation
This reference illustrates
procedures, which ensure proper refrigerant line set
isolation:
Installation of
line set on horizontal runs
is
illustrated in figure 14.
Installation of
line set on vertical runs
is illustrated in
figure 15.
Installation of
transition from vertical to horizontal
is illustrated in figure 16.
METAL
SLEEVE
STRAPPING MATERIAL
(AROUND SUCTION
LINE ONLY)
TAPE OR
WIRE TIE
WIRE TIE (AROUND
SUCTION LINE ONLY)
FLOOR JOIST OR
ROOF RAFTER
TAPE OR
WIRE TIE
TO HANG LINE SET FROM JOIST OR
RAFTER, USE EITHER METAL STRAPPING
MATERIAL OR ANCHORED HEAVY NYLON
WIRE TIES.
8 FEET
8 FEET
STRAP THE SUCTION LINE TO
THE JOIST OR RAFTER AT 8 FEET
INTERVALS THEN STRAP THE
LIQUID LINE TO THE SUCTION
LINE.
FLOOR JOIST OR
ROOF RAFTER
Figure 14. Refrigerant Line Set: Installing
Horizontal Runs
NOTE − SIMILAR INSTALLATION
PRACTICES SHOULD BE USED
IF LINE SET IS TO BE INSTALLED
ON EXTERIOR OF OUTSIDE
WALL.
PVC
PIPE
FIBERGLASS
INSULATION
CAULK
OUTSIDE
WALL
SUCTION LINE WRAPPED
WITH ARMAFLEX
LIQUID LINE
IMPORTANT!
REFRIGERANT LINES
MUST NOT CONTACT
STRUCTURE.
OUTSIDE WALL
LIQUID LINE
SUCTION LINE
IMPORTANT - REFRIGERANT LINES
MUST NOT CONTACT WALL.
WOOD BLOCK
BETWEEN STUDS
STRAP
SLEEVE
WOOD BLOCK
STRAP
SLEEVE
WIRE TIE
WIRE TIE
WIRE TIE
INSIDE WALL
Figure 15. Refrigerant Line Set: Installing Vertical
Runs (New Construction Shown)
AUTOMOTIVE MUFFLER-TYPE
HANGER
ANCHORED HEAVY
NYLON WIRE TIE
STRAP LIQUID LINE
TO SUCTION LINE
WALL
STUD
LIQUID LINE
METAL SLEEVE
SUCTION LINE − WRAPPED
IN ARMAFLEX
STRAP LIQUID LINE
TO SUCTION LINE
LIQUID LINE
METAL SLEEVE
SUCTION LINE −
WRAPPED IN ARMAFLEX
Figure 16. Refrigerant Line Set: Transition from Vertical to Horizontal
