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WLCA/WLHA HIGH WALL EVAPORATOR Installation Instructions
Refrigerant Processing
!
Warning
!
It is illegal to discharge
refrigerant into the atmosphere.
Use proper reclaiming methods
and equipment when installing or
servicing this unit.
Finish all pipe connecting before
proceeding to charging the system.
Follow the instructions in the outdoor
unit for line evacuation, opening service
valves, and final charge adjustments. Operation charts and charge tables can be
found in the EMI Condenser IOMs.
4. Braze tubing into fittings.
5. Attach manifold set.
manifold Vacuum Pump Micron Gage
Top discharge
condeser shown
Manifold Setup For Evacuation
1. Clean the ends of tubing and insert into
fittings.
6. Evacuate line to 500 microns or less to
ensure all moisture has been removed
and there are no leaks.
Top discharge condeser shown
2. Protect the valves by wrapping with a
wet rag "heat sink" before brazing.
heat sink
shield
Top discharge
condeser shown
7. 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.
Refer to Charts in condenser manual to
“fine tune” the refrigerant charge.
3. We recommend the use of a shield (can
be made from some scrap metal) to
protect the paint.
WLCA/WLHA High Wall Evaporator
WLCA30 & WLCA36 utilize a TXV (Thermo
Expansion Valve), which should be set at
10°F superheat.
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