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Idiomas disponibles
SET UP & USE
AIR EVACUATION
Preparations and Precautions
Air and foreign matter in the refrigerant
circuit can cause abnormal rises in
pressure, which can damage the air
conditioner, reduce its efficiency, and cause
injury. Use a vacuum pump and manifold
gauge to evacuate the refrigerant circuit,
removing any non-condensable gas and
moisture from the system.
Evacuation should be performed upon initial
installation and when unit is relocated.
BEFORE PERFORMING EVACUATION
Check to make sure the connective pipes
between the indoor and outdoor units are
connected properly.
Check to make sure all wiring is connected
properly.
Evacuation Instructions
1. Connect the charge hose of the manifold
gauge to service port on the outdoor
unit's low pressure valve.
2. Connect another charge hose from the
manifold gauge to the vacuum pump.
3. Open the Low Pressure side of the
manifold gauge. Keep the High Pressure
side closed.
4. Turn on the vacuum pump to evacuate
the system.
5. Run the vacuum for at least 15 minutes,
or until the Compound Meter reads
-76cmHG (-105Pa).
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6. Close the Low Pressure side of the
manifold gauge, and turn off the vacuum
pump.
7. Wait for 5 minutes, then check that there
has been no change in system pressure.
8. If there is a change in system pressure,
refer to Gas Leak Check section for
information on how to check for leaks.
If there is no change in system pressure,
unscrew the cap from the packed valve
(high pressure valve).
9. Insert hexagonal wrench into the packed
valve (high pressure valve) and open the
valve by turning the wrench in a 1/4
counterclockwise turn. Listen for gas to
exit the system, then close the valve after
5 seconds.
10. Watch the Pressure Gauge for one minute
to make sure that there is no change in
pressure. The Pressure Gauge should read
slightly higher than atmospheric pressure.
11. Remove the charge hose from the service
port.
12. Using hexagonal wrench, fully open both
the high pressure and low pressure valves.
13. Tighten valve caps on all three valves
(service port, high pressure, low pressure)
by hand. You may tighten it further using
a torque wrench if needed.
OPEN VALVE STEMS GENTLY
When opening valve stems, turn the
hexagonal wrench until it hits against the
stopper. Do not try to force the valve to open
further.
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