1. Compact and Lightweight · Freeing Up Outdoor Unit Design Space
The HSM series has a net weight of only 12.3-12.7 kg, which is relatively light among compressors of the same displacement. With an overall height of just 292-300 mm, the compact design frees up more system layout space for OEMs, while also significantly reducing transportation costs and installation difficulty. For mass production of residential air conditioners, the lightweight design means lower logistics costs and more efficient assembly.
2. High-Efficiency Design · Energy-Saving Operation
The entire series achieves a COP of 2.96-4.35 W/W, placing it at the leading level among R22 fixed-speed small-displacement compressors. Notably, the HSM200V4UDZ boasts a COP of up to 4.35 W/W, delivering exceptional energy efficiency. The high-efficiency design means the air conditioning system consumes less power during operation, reducing long-term operating costs for users.
3. Mature and Stable SM Platform · Worry-Free for Mass Production
The SM series is the classic platform for GMCC rotary fixed-speed compressors, adopting high-precision machining processes and precision internal structure design. Through rigorous durability testing and meticulous engineering validation, it maintains excellent reliability and stability even under long-term, high-frequency operation.
4. Low Noise and Low Vibration · Suitable for Residential Installation
The rotary design effectively reduces operating noise and vibration, making it especially suitable for residential and office environments with strict silence requirements. The precise gas refrigerant compression delivers faster cooling and lower energy consumption.
5. Wide Application Scenario Adaptability
The HSM series is not only suitable for residential split air conditioners (wall-mounted and cabinet types), but also widely used in various refrigeration equipment such as heat pump water heaters, dehumidifiers, tumble dryers, freezers and refrigerators, parking air conditioners, and RV air conditioners.
Core Technical Parameters
The HSM series displacement ranges from 15.0 to 21.5 cc, precisely matching different horsepower requirements as the model number increases:
| Model | Displacement (cm³/rev) | Cooling Capacity (W) | Cooling Capacity (Btu/h) | COP (W/W) | Capacitor (μF/V) | Height (mm) | Net Weight (kg) |
| HSM150V4UDZ | 15.1 | 2675 | 9127 | 2.96 | 30/370 | — | — |
| HSM165V4UDZ | 16.4 | 2845 | 9710 | 3.12 | 30/370 | 292 | 12.3 |
| HSM200V4UDZ | 20.1 | 3895 | 13290 | 4.35 | — | — | — |
| HSM215V4UDZ | 21.4 | 3700 | 12617 | 3.05 | 40/370 | 300 | 12.7 |
Note: The above data is based on testing under standard conditions with R22 refrigerant.





