Refrigerant Processing - ECR EMI America Series Installation, Operation And Maintenance Manual

Refrigerant processing

1. Attach manifold set (
2. Evacuate line to 500 microns or less to
ensure all moisture has been removed and
there are no leaks.
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 17).
NOTICE
Refer to refrigerant charge table for speci-
fied charge.
4. Use only R410A refrigerant. Add and
remove liquid,
only
5. Charge to proper weight, charge based on
feet of interconnect (Figure 19, Page 17).
See tables on page 18.
CAUTION
Refer to the charts in the condenser
manual to "fine tune" the refrigerant
charge.
WLCG30 utilizes a TXV (thermo expan-
sion valve), which should be set at 15°F
superheat.
CAUTION
Charging should be done with a dial-a-
charge or weighed in with a scale.
WARNING
It is illegal to discharge refrigerant into
the atmosphere. Use proper reclaiming
methods & equipment when installing
or servicing this unit.
P/N 240007756, Rev. A [051509]
CACG/CAHG & CACH/CAHH
• Installation, Operation and Maintenance Manual •
Refrigerant Piping
Figure 17).
vapor.
never
(continued)
Manifold set connections at unit
Figure 17
s1CG
shown
Figure 18 Manifold set up for evacuation
A
s1CG
shown
A
Manifold
C
Micron gage
Charging the unit
Figure 19
s1CG
s1CG
shown
17
Air Handlers
B
C
B
Vacuum pump
s2CG
Refrigerant
Made in the USA