System Start Up And Charge Adjustment Procedures; Leakage Check; Air Exhaust - Soleus Air Air condioner Manual

System Start Up and Charge Adjustment Procedures
Additional Charge Needed for Refrigeration lines over 15 feet
Liquid Line O.D.(lnches)
Additional R-22 (ozlft)
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3/8 . 5 8
Properly check refrigeration tubes and connections for any leaks prior to system start up procedures.
NOTE:
A is the low-pressure valve
B is the high-pressure
valve
C and D are the joints of connecting pipes
of indoor unit.
The outdoor unit is supplied with a R-22 charge sufficient for 15 feet of refrigeration tubing.
The outdoor unit's liouid and suction valves are closed to contain the charge within the
unit. The recommended procedures for charge adjustments are as follows:
\ Vacuum pump
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1. After connecting the refrigeration tubing to the indoor and outdoor units. connect a
Low-pressure
vacuum pump to the refrigeration valve service ports.
2. Evacuate through the liquid and suction valve service ports to 500 microns or less for a minimum of 30 minutes' Close
the valves to the pump and monitor the vacuum for 15 minutes. The vacuum should not rise above 800 microns.
3. lf a vacuum of 500 microns cannot be obtained, or if it rises above 800 microns over the 15 minute period, discontinue
evacuation, pressurize the system with nitrogen and look for leaks. Repair any leaks that are found and repeat step 2.
4. Close the valves to the vacuum pump, tufn the pump off, and disconnect it from the refrigerant valve service ports. Open
the liquid and suction service valves fully, releasing the R-22 into the system. Connect the service gauges to the refrigerant
Valve service ports.
5. Set the indoor remote control to cool mode and ensure proper operation. Allow unit to run for a period of 10 minutes to
allow system pressures to stabilize.
- Make sure that proper pressures are observed.
' Check proper temperatures in space, to ensure temperatures match those on remote control.
- Check condensate drain hose for proper drainage.
' Check for any abnormal vibration noises and correct as needed.
- Check for any signs of refrigerant leakage.
6. Set the indoor remote control to heat mode and ensure proper operation. Allow unit to run for a period of 10 minutes
to allow system pressures to stabilize. Allow same checkouts as cool mode'
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L o r o d '
Filling hose
+
Hi rod
Filling hose
C h e c k i n g p o i n t s
of outdoor unit
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Connecting PiPe nut
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rvarvecao
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Valve body I
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Valve rod
Manifold valve
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