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 (-10 Pa).
Compound gauge
-76cmHg
Low pressure valve
Pressure hose
Charge hose
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.
valve body
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.
man_S60xx EU ('24) TD.indd 183
man_S60xx EU ('24) TD.indd 183
Manifold Gauge
Pressure gauge
High pressure valve
Charge hose
Vacuum pump
Low pressure valve
Flare nut
Cap
valve stem
4
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22-01-2024 11:56
22-01-2024 11:56