Olimpia splendid ARYAL S2 E, Instructions For Use And Maintenance Manual, Page: 56 / 216

ENGLISH
EN - 24
8.
Insert hexagonal wrench into the packed valve
(high pressure valve) and open the valve by
turning the wrench 1/4 counterclockwise. Listen
for gas to exit the system, then close the valve
after 5 seconds.
9.
Watch the Pressure Gauge for one minute to
make sure that there is no change in pressure. It
should read slightly higher than the atmospheric
pressure.
10.
Remove the charge hose from the service port.
11.
Using hexagonal wrench, fully open both the high
pressure and low pressure valves.
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.
12. Tighten valve caps by hand, then tighten it using the proper tool.
13. If the outdoor unit uses all vacuum valves, and the vacuum position is at the main valve, the system is
not connected with the indoor unit. The valve must be tightened with a screw nut. Check for gas leaks
before operation to prevent leakage.
• After confirmation of the above conditions, follow these guidelines when performing wiring:
• Refrigerant charging must be performed after wiring, vacuuming, and the leak testing.
• DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system.
Doing so can damage the unit or impact it’s functioning.
• Charging with unsuitable substances may cause explosions or accidents. Ensure that the
appropriate refrigerant is used.
• Refrigerant containers must be opened slowly. Always use protective gear when charging
the system.
• DO NOT mix refrigerants types.
• For the R32 refrigerant model, make sure the conditions within the area have been made
safe by control of flammable material when the refrigerant added into air conditioner.
Depending on the length of connective piping or the pressure of the evacuated system, you made need to
add refrigerant. Refer to table below for refrigerant amounts to be added:
Connective Pipe
Length (m)
Air Purging
Method
Additional Refrigerant
More than (pre-charge pipe
lengthxN) m
Vacuum Pump
Liquid Side: Ø 6,35 (Ø 1/4")
(Total pipe length - pre-charge
pipe length xN) x12g/m
Liquid Side: Ø 9,52 (Ø 3/8")
(Total pipe length - pre-charge
pipe length xN) x12g/m
The standard pipe length is 7.5m.
Evacuation Instructions
Before using a manifold gauge and a vacuum
pump, read their operation manuals to make
sure you know how to use them properly.
Manifold Gauge
Compound gauge
-76cmHg
Low pressure valve
High pressure valve
Charge hose Charge hose
Vacuum pump
Pressure gauge
Low pressure valve
1. Connect the manifold gauge’s charge hose
to the service port on the outdoor unit’s low
pressure valve.
2. Connect the manifold gauge’s charge hose
from the 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 (-1x105Pa).
6. Close the manifold gauge’s Low Pressure valve
and turn off the vacuum pump.
7. Wait for 5 minutes, then check that there has
been no change in system pressure.
NOTE:
If there is no change in system pressure,
unscrew the cap from the packed valve (high
pressure valve). If there is a change in system
pressure, there may be a gas leak.
8. Insert hexagonal wrench into the packed valve
(high pressure valve) and open the valve by
turning the wrench 1/4 counterclockwise.
Listen for gas to exit the system, then close the
valve after 5 seconds.
Flare nut
Cap
Valve body
Valve stem
9. Watch the Pressure Gauge for one minute to make
sure that there is no change in pressure. It should
read slightly higher than the atmospheric pressure.
10.Remove the charge hose from the service port.
11. Using hexagonal wrench, fully open both the
high pressure and low pressure valves.
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.
12.Tighten valve caps by hand, then tighten it
using the proper tool.
13.If the outdoor unit uses all vacuum valves,
and the vacuum position is at the main valve,
the system is not connected with the indoor
unit. The valve must be tightened with a
screw nut. Check for gas leaks before
operation to prevent leakage.
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
 
Air Evacuation