Additional Charge - Gree CROWN09HP230V1A Installation Manual

TESTING AND INSPECTION
Vacuum Procedure (con't)
7. Confirm that manifold valves are closed and disconnect the vacuum pump.
8. Open the service valves to the fully 'back-seat' position to let the refrigerant flow to the
indoor unit and balance the pressure in system.
Important: Do not allow air to enter the connection pipe when removing the hose.
9. Replace service valve caps and tighten.
Pipe Testing
Pressure gauge (low-pressure)
Switch (low-pressure)
Connection pipe (to indoor unit)
Liquid valve
Gas valve
Service port

Additional Charge

The outdoor unit contains enough refrigerant charge for up to 25 feet from the factory. When the piping
is greater than 25 feet, additional charging is necessary. For the additional amount, see the table below.
Model
12,000
18,000
Oil Return Bend
When the outdoor unit is more than 30 feet above the indoor unit,
an oil return bend must be added for every 20 feet of connection pipe.
Condensate Drain Pipe Testing
Carefully and slowly add 8-10 ounces of water to the indoor unit drain pan.
• Verify the water drains easily out the condensate drain hose.
• If water does not drain easily from the drain hose, then remove kinks,
increase drain pitch, or add an auxiliary condensate drain pump.
Gauge manifold
Pressure gauge (hi-pressure)
Switch (hi-pressure)
Hose
Hose
Cap
Vacuum pump
Add'l Refrigerant Amount for Extra Pipe
9,000
Connection pipe
Cap
Service pipe
Cap
Hose with the valve pin
0.2 oz/ft
0.2 oz/ft
0.5 oz/ft
Indoor
Low pressure gauge
High pressure gauge
Gauge manifold kit
VAC valve
Service port
Vacuum pump
Oil return bend
Oil return bend
Outdoor
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