Retro Pumps
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Featuring Hitachi DC Inverter compressor & R410A refrigerant. Maximum water output temperature 60°C. Lowest working ambient temperature -35°C.
Air source heat pump units are prone to frosting when air density is low and humidity is high. Our unit accurately judges defrosting timing based on heating operation parameters and load changes, achieving efficient defrosting while maintaining normal heating.
Unit modules of different capacity specifications can be freely combined. A maximum of 16 units can be connected in parallel, reaching a maximum cooling capacity of 2080kW. Units start in stages to reduce power grid impact.
The system rotates the module units that are turned on first, distributing running time equally to improve reliability and service life.
Utilizing the Modbus open protocol, the unit can be connected to BMS building control systems for remote management of multiple modules.
Equipped with Sensata pressure sensors and FUJIKOJI Electronic expansion valves for precision and mechanical resistance. High-efficiency shell & coil heat exchangers ensure stable water quality and antifreeze ability.
Our engineers have over 10 years of experience in the heat pump industry. We maintain a professional 15HP laboratory and strategic cooperation with Dan-foss China to ensure ultra-high performance and stability.
Testing capabilities from -40ºC to 55ºC. Our facility includes Enthalpy difference labs and long-term operation monitoring centers.
| Model | DRS-10I/BP | DRS-28II/BP | DRS-52II/BP | DRS-110II/BP | DRS-210II/BP |
|---|---|---|---|---|---|
| Rated Heating (kW) | 10 | 28 | 52 | 110 | 210 |
| COP (20°C) | 4.42 | 4.42 | 4.42 | 4.39 | 4.39 |
| Power Supply | 220V~50Hz | 220V~50Hz | 380V~50Hz | 380V~50Hz | 380V~50Hz |
| Refrigerant | R410A | ||||
| Max Outlet Temp | 60ºC | ||||
| Operating Range | -30ºC ~ 43ºC | ||||
