S1CG/S1HG
Single-Zone,
S2CG/S2HG
Dual-Zone
• Installation, Operation and Maintenance Manual •
P/N 240007754, Rev. C [3/19/2010]
11
Made in the USA
Refrigerant Piping
Tubing specifi cations
Th
e system will support refrigerant runs to
the inside unit as listed in
Table 1, Page 11
.
Th
e units are furnished with sweat connec-
tions and are equipped with refrigerant valves
and Schrader fi tt ings for charging and taking
pressure readings.
CAUTION
It is recommended that a
fi lter drier
be
installed in the liquid line, at the indoor
unit on models without a factory-in-
stalled fi lter drier (i.e. 18K and larger).
S1CG/S2CG tubing specifi ca-
Table 1
tions (see Table 14, Page 11 )
Model
Max.
Length
Equivalent
Feet
Max.
Lift
Max.
Trap
Height
Liquid
Line
Suction
Line
“H”
“P”
O.D.
O.D.
09
50’
(15 m)
20’
(6 m)
15’
(5 m)
1/4"
1/2"
12
1/4"
1/2"
18
100’
(30 m)
35’
(11 m)
20’
(6 m)
3/8"
5/8"
24
3/8"
3/4"
30
3/8"
3/4"
36
3/8"
3/4"
P-trap installation
A P-trap is recommended when the
•
suction riser is equal to or greater than
show in Figure 14, Page 11 and Table 1,
Page 11.
When the condenser is installed above the
•
air handler, the P-trap will help the return
of oil back to the compressor.
P-trap placement (see
Figure 14
Table 1,
Page 11 for dimensions
H
&
P
)
A P-trap may be fabricated using (2) street
•
elbows and (2) regular elbow.
A prefabricated trap may be purchased
•
from a wholesaler or distributor however
the trap should be shallow as with the (3)
elbow confi guration.
Each elbow is approximately 2 equivalent
•
feet.
One P-trap is equal to approximately
•
12 equivalent feet.
P-traps are not required at the foot of the
•
hot gas risers due to increased oil fl ow at
higher temperatures.
