Specifications
3
Line Set Isolation
The following illustrations demonstrate procedures which ensure
proper refrigerant line set isolation.
Installing Horizontal Runs
This shows how to install line sets on horizontal runs.
NOTES:
■ To hang line set from joist or rafter, use either metal strapping
material or anchored heavy nylon wire ties.
■ Strap the vapor line to the floor joist or roof rafter at 8 ft
(2.4 m) intervals, then strap the liquid line to the vapor line.
Transition from Horizontal to Vertical
This shows how to make a transition from horizontal to vertical.
Installing Vertical Runs (new construction shown)
This shows how to install line sets on vertical runs.
NOTE: Similar installation practices should be used if line set is
to be installed on exterior of outside wall.
IMPORTANT: Refrigerant lines must not contact structure.
Electrical Requirements
NOTE: All outdoor wiring must be suitable for outdoor use. Use
copper conductors only.
A. Metal strapping material (around
vapor line only)
B. Floor joist or roof rafter
C. Tape or heavy nylon wire tie
D. Metal strapping material (around
vapor line only) and tape or heavy
nylon wire tie (around vapor and
liquid lines)
E. Metal sleeve
A. Style 1—anchored heavy nylon wire tie
B. Tape or heavy nylon wire tie holding liquid
line to vapor line.
C. Liquid line
D. Vapor line—wrapped in armaflex
E. Metal sleeve
F. Wa ll stu d
G. Style 2—automotive
muffler-type hanger
B
A
C
E
C
A
D
8'
8'
A
F
E
D
C
B
G
F
E
D
C
B
Style 1
Style 2
A. Outside wall
B. Space between wall
and refrigerant line
C. Vapor line wrapped
in armaflex
D. Liquid line
E. Anchored heavy nylon wire tie
F. Inside wall
G. Metal strapping material
H. Metal sleeve
I. Wood block between studs
J. Caulk
K. Fiberglass
insulation
L. PVC pipe
A
B
C
D
E
F
G
H
E
I
E
G
H
C
A
D
J
K
L
C
D
G
H
WARNING
Rating Plate Ampacity
Less than 15
16 - 20
21 - 30
AWG
14
12
10
8
31 - 50
Electrical Shock Hazard
Electrically ground condensing unit or heat pump.
Connect ground wire to ground lug.
Use copper wire for supply connection.
Correct wire gauge is shown in the chart below.
Failure to follow these instructions can result in
death or electrical shock.