Panasonic 9VD330XAB21 DC Inverter Rotary Compressor – 3 HP / 32,800 BTU, R32

Panasonic 9VD330XAB21 is a DC inverter rotary compressor designed to operate with R32 refrigerant. With a displacement of 33.0 cm³/rev, it delivers a cooling capacity of 9,610 W (≈32,800 BTU/h); it is in the 3 HP class. It is intended for heating-cooling R32 inverter air conditioner outdoor units and heat pumps.

V Series Inverter Rotary Designed for R32

• Specific to R32: Oil type, sealing and motor winding are selected for the high discharge temperature of R32 — it is not an R410A model converted to R32.
• 900-3,100 rpm speed range: Modulates its capacity at a ratio of about 1 to 3.5; at part load it runs at low speed and eliminates on-off cycling.
• 9,610 W cooling / 3,455 W input (P-JIS-A: Te 7 / Tc 55 °C, 3,450 rpm, drive DC 280 V).
• Sensorless brushless inverter: Runs with sine-wave drive without a position sensor.
• Low GWP: The global warming potential of R32 is one third of that of R410A; it is the standard refrigerant of new-generation air conditioners.

Technical Specifications and Installation Notes

• Model: Panasonic 9VD330XAB21  |  Supply Code: 10.183.0065  |  Series: V (rotary)
• Type: Hermetic rotary, DC inverter (sensorless brushless)  |  Refrigerant: R32
• Power Class: 3 HP  |  Capacity: 9,610 W / ≈32,800 BTU/h (P-JIS-A)
• Power Input: 3,455 W  |  Displacement: 33.0 cm³/rev
• Speed Range: 900-3,100 rpm (rated test speed 3,450 rpm)  |  Drive DC Voltage: 280 V
• Oil: FW50S, 1,300 cm³ factory charge  |  Net Weight: 20.3 kg
• Connection: Suction inside diameter 15.9 mm  |  Discharge inside diameter 9.7 mm (outside diameter 12.7 mm)
• Mounting: V series 3 feet, 3 × Ø19.1 mm holes, hole center radius R88 mm, 120° spacing
• Max. Refrigerant Charge: 1,800 g

• 🔥 R32 is mildly flammable (A2L class). Before brazing/welding, fully evacuate the system and purge it with nitrogen; ventilate the work area and use a leak detector suitable for R32. Do not work on it with R410A habits.
• The oil type is FW50S — the R410A models of the same family use FV50S/FV68S. Do not mix oil types when topping up.
• It is an inverter compressor and is not connected directly to the mains. It does not run without the drive board; when replacing, verify that the drive is also in good condition.
• The system refrigerant charge must not exceed 1,800 g — this is the manufacturer's limit.
• Upright mounting is required: Rotary compressors must not be run tilted; fix it upright with vibration mounts.