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.
NOTE: To hang line set from joist or rafter, use either metal
strapping material or anchored heavy nylon wire ties.
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 wiring must be suitable for outdoor use. Use copper
conductors only.
A. Floor joist or roof
rafter
B. Strapping material
(around vapor line
only)
C. Wire tie (around
vapor line only)
D. Tape or wire
tie
E. Metal sleeve
F. Tape or wire
tie
G. Strap the vapor line
to the floor joist or
roof rafter at 8"
intervals, then strap
the liquid line to the
vapor line.
A. Anchored heavy
nylon wire tie
B. Strap liquid line
to vapor line.
C. Liquid line
D. Vapor line—
wrapped in
armaflex
E. Metal sleeve
F. Wall stud
G. Automotive muffler-
type hanger
B
C
D
E
F
A
G
8’
8’
A
F
E
D
C
B
G
F
E
D
C
B
A. Outside wall
B. Refrigerant lines must
not contact wall.
C. Vapor line wrapped in
armaflex
D. Liquid line
E. Wire tie
F. Inside wall
G. Strap
H. 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
E
J
K
L
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.
Содержание W2GH3
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