Retro Pumps
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The KS and KF series heat pumps are designed for domestic heat pump water heaters, with heating capacity ranging from 1Hp to 2.5Hp. Featuring an internal heat exchanger or water circulation design, these units are ideal for residential hot water systems and small-scale central water heating projects.
Economical and high-efficiency design saves about 70% in heating costs compared to traditional electric heaters.
Easy installation and operation with integrated water circulation technology.
Equipped with a low-noise rotary compressor and fan, ensuring the unit works in extremely quiet conditions.
Full automatic and intelligent controller removes the need for manual operation.
| Model | KF-1.0/KS-1.0 | KF-1.5/KS-1.5 | KF-2.0/KS-2.0 | KS-2.5 |
|---|---|---|---|---|
| Type | KF SERIES: Refrigerant gas direct circulation; KS SERIES: Water indirect circulation (integrated pump) | |||
| Input Power | 1HP/0.9KW | 1.5HP/1.25KW | 2HP/1.8KW | 2.5HP/2.1KW |
| Heating Power | 3.5KW | 5KW | 7KW | 8KW |
| Power Supply | AC220V / 50Hz (110V models available via OEM) | |||
| Water Temp (Rated/Max) | 55°C / 60°C | |||
| Ambient Temp | -3°C to 45°C | |||
| Refrigerant | R22 / R417A / R410A (Optional) | |||
| Connection (KS) | DN20/ G3/4" | DN20/ G3/4" | DN20/ G3/4" | DN25/ G1" |
The units are designed for domestic hot water systems and small-scale applications, matching flexibly with pressurized or non-pressurized tanks and solar water heaters. Built with high-quality components and excellent workmanship for stable performance.
