Lennox Elite XC13 Installation Instructions Manual page 9

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
procedures, which ensure proper refrigerant line set
isolation:
S
Installation of line set on horizontal runs is
illustrated in figure 14.
S
Installation of line set on vertical runs is illustrated in
figure 15.
S
Installation of transition from vertical to horizontal
is illustrated in figure 16.
TO HANG LINE SET FROM JOIST OR
RAFTER, USE EITHER METAL STRAPPING
MATERIAL OR ANCHORED HEAVY NYLON
WIRE TIES.
STRAPPING MATERIAL
(AROUND SUCTION
LINE ONLY)
FLOOR JOIST OR
ROOF RAFTER
METAL
TAPE OR
SLEEVE
WIRE TIE
FLOOR JOIST OR
ROOF RAFTER
Figure 14. Refrigerant Line Set: Installing
Horizontal Runs
AUTOMOTIVE MUFFLER-TYPE
HANGER
METAL SLEEVE
Figure 16. Refrigerant Line Set: Transition from Vertical to Horizontal
reference illustrates
WIRE TIE (AROUND
SUCTION LINE ONLY)
8 FEET
TAPE OR
WIRE TIE
8 FEET
STRAP THE SUCTION LINE TO
THE JOIST OR RAFTER AT 8 FEET
INTERVALS THEN STRAP THE
LIQUID LINE TO THE SUCTION
LINE.
STRAP LIQUID LINE
TO SUCTION LINE
LIQUID LINE
SUCTION LINE −
WRAPPED IN ARMAFLEX
OUTSIDE WALL
WOOD BLOCK
BETWEEN STUDS
NOTE − SIMILAR INSTALLATION
PRACTICES SHOULD BE USED
IF LINE SET IS TO BE INSTALLED
ON EXTERIOR OF OUTSIDE
WALL.
SUCTION LINE WRAPPED
WITH ARMAFLEX
OUTSIDE
WALL
PVC
PIPE
FIBERGLASS
INSULATION
Figure 15. Refrigerant Line Set: Installing Vertical
Runs (New Construction Shown)
ANCHORED HEAVY
NYLON WIRE TIE
WALL
STUD
METAL SLEEVE
Page 9
IMPORTANT - REFRIGERANT LINES
MUST NOT CONTACT WALL.
SUCTION LINE
SLEEVE
LIQUID LINE
CAULK
IMPORTANT!
REFRIGERANT LINES
MUST NOT CONTACT
STRUCTURE.
STRAP LIQUID LINE
TO SUCTION LINE
LIQUID LINE
SUCTION LINE − WRAPPED
IN ARMAFLEX
LIQUID LINE
WIRE TIE
INSIDE WALL
STRAP
SLEEVE
WIRE TIE
WOOD BLOCK
WIRE TIE
STRAP
XC13 SERIES