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Charging the unit
1.
Attach manifold set (
2.
Evacuate line to 500 microns or less to
ensure all moisture has been removed and
there are no leaks (Figure 18).
3.
Once certain of a good evacuation and
leak free joints, back-seat the valves
(counter-clockwise) to open and allow
factory charge to fill lines and indoor unit
(Figure 18, Page 13).
NOTICE
Refer to refrigerant charge table for speci-
fied charge.
4.
Charge to proper weight, charge based
on feet of interconnect (see tables on
page 15). Only add/remove 410A in
liquid form.
5.
Refer to charts beginning on
"fine tune" the refrigerant charge to meet
your conditions.
CAUTION
All systems require field charge adjust-
ments. Refer to the "Refrigerant Charge
Tables" for proper weight charge and
to the supplied "Single-zone Operation
Charts" for proper system pressures and
temperature at different outdoor condi-
tions. Superheat should be used for final
system charge.
CAUTION
Charging should be done with a dial-a-
charge or weighed in with a scale.
When charging and checking pressures/
temperatures on system supplied with
Low Ambient Option, the fan cycle
switch should be jumped out of the
circuit temporarily to obtain accurate
data.
P/N 240007754, Rev. A [051509]
S1CG/S1HG
• Installation, Operation and Maintenance Manual •
Refrigerant Processing
Figure 18).
page 17 to
S2CG/S2HG
Single-Zone,
Figure 18
Manifold set connections at unit
S1CG
Shown
Figure 19
Manifold set up for evacuation
A
S1CG
Shown
A
Manifold
C
Micron gage
Figure 20
Charging
S1CG
S1CG
Shown
13
Dual-Zone
B
C
B
Vacuum pump
S2CG
Refrigerant
Made in the USA
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