Lennox 12HPB Series Installation Instructions Manual page 7

Installing Vertical Runs of Refrigerant Piping
NOTE - Similar installation practices should be used if
line set is to be installed on exterior of outside wall.
Outside Wall
Wood Block
Between Studs
Liquid Line
Vapor Line
(wrapped with Armaflex)
Outside Wall
Caulk
Fiberglass
PVC Pipe
Insulation
IMPORTANT - Refrigerant
lines must not contact
structure.
(new construction shown)
IMPORTANT - Refrigerant
lines must not contact wall.
Figure 7
Page 7
Vapor Line Liquid Line
Wire Tie
Inside Wall
Strap
Sleeve
Wire Tie
Wood Block
Wire Tie
Strap
Sleeve