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WLCA/WLHA High Wall Evaporator
12
REFRIGERANT PROCESSING
Finish all pipe connecting before
proceeding to charging the system.
Follow the instructions in the outdoor
unit for line evacuation, opening service
valves, and nal charge adjustments. Op-
eration charts and charge tables can be
found in the EMI Condenser IOMs.
It is illegal to discharge
refrigerant into the atmosphere.
Use proper reclaiming methods
and equipment when installing or
servicing this unit.
1. Clean the ends of tubing and insert into
ttings.
2. Protect the valves by wrapping with a
wet rag "heat sink" before brazing.
3. We recommend the use of a shield (can
be made from some scrap metal) to
protect the paint.
4. Braze tubing into ttings.
5. Attach manifold set.
6. Evacuate line to 500 microns or less to
ensure all moisture has been removed
and there are no leaks.
7. Once certain of a good evacuation and
leak free joints, back-seat the valves
(counter-clockwise) to open and allow fac-
tory charge to ll lines and indoor unit.
Heat sink
Shield
Manifold
Vacuum Pump Micron Gage
Manifold Setup For Evacuation
Top discharge
condeser shown
Top discharge
condeser shown
Top discharge condeser shown
Refer to Charts in condenser manual to
“ne tune” the refrigerant charge.
WLCA30 & WLCA36 utilize a TXV (Thermo
Expansion Valve), which should be set at
10°F Superheat.
WLCA/WLHA HIGH WALL EVAPORATOR INSTALLATION INSTRUCTIONS
! !
WARNING