S1CG/S1HG
Single-Zone,
S2CG/S2HG
Dual-Zone
• Installation, Operation and Maintenance Manual •
Comfort where it counts
12
P/N 240007754, Rev. C [3/19/2010]
Refrigerant Piping
(continued)
Clean ends of tubing
Figure 15
Wet rag “heat shield over valves
Figure 16
S2CG
S2CG
S1CG
S1CG
Shown
Shown
Make a shield to protect paint
Figure 17
S1CG
S1CG
Shown
Shown
S2CG
S2CG
Shown
Shown
CAUTION
Avoid piping on wet and rainy days.
•
Use only clean, refrigeration-grade
•
copper tubing.
Use tubing benders to guard against
•
kinking.
Be certain no burrs remain on the
•
fi tt ings.
Cap ends of lines until ready for con-
•
nections.
Be certain that plastic end caps remain
•
in place when inserting through wall
openings.
Insulate the suction line.
•
Isolate tubing from transmitt ing vibra-
•
tion to the building or unit and avoid
contact with sharp edges.
Wrap refrigeration valves with a wet
•
rag “heat sink” to protect valves while
brazing. (See Figure 16, Page 12 .)
Refrigerant piping
Clean the ends of tubing and insert into
1.
fi tt ings ( Figure 15 ).
Protect valves by wrapping with a wet rag
2.
“heat sink” before brazing ( Figure 16 ).
Use a shield to protect the paint as shown
3.
in Figure 17 . (Th
e shield can be made
from scrap metal.)
Braze tubing into fi tt ings.
4.
Install all panels removed to this point.
5.
Panels are required for proper air fl ow.
