Orbegozo FDI 94 Manual De Instalación página 65

FDI 94 FDI 124 FDI 184 FDI 244 MANUAL DE INSTALACIÓN
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).
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.
Note on Adding Refrigerant
Some systems require additional charging depending on pipe lengths. The standard pipe length varies
according to local regulations.
The additional refrigerant to be charged can be calculated using the following formula:
CAUTION: DO NOT mix refrigerant types.
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