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TENESUN R32 KFXRS-21IIBP/C1 Variable Frequency Low-Temperature Commercial Hot Water Heat Pump Unit (Air- Source Heat Pump)

TENESUN R32 KFXRS-21IIBP/C1 Variable Frequency Low-Temperature Commercial Hot Water Heat Pump Unit (Air- Source Heat Pump)

TENESUN low-temperature commercial variable frequency heat pump water heater delivers 21kW rated heating capacity with a high COP of 4.73, reaching up to 60℃ hot water. Adopting R32 eco-friendly refrigerant and full DC inverter scroll jet enthalpy enhancement technology, it operates stably from -35℃ to 50℃. With intelligent frequency conversion throttling and high-efficiency anti-corrosion heat exchanger, it saves over 25% energy and extends service life by 20%. Suitable for residences, malls and hotels, it provides 24/7 stable hot water with flexible tank matching and space-saving outdoor installation.

Safe and reliable to ensure NO worry use.

Safety is top priority to the commercial hot water machines. TENESUN commercial hot water air source heat pumps adopt a closed design with complete separation of water and electricity and this completely eliminates safety risks such as electrical and water leakage. Furthermore, the machines are equipped with multiple safe protection measures, such as high and low pressure protection, compressor’s over-current and overload protection, start-up delay, water flow protection, water temperature’s high temperature protection and so on to ensure safe operation in any conditions. In addition, there is no need to use fuel delivery pipeline for TENESUN air source heat pumps and it will avoid the risks of fuel leaks, fire and explosion and there is no worry when use.

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Operating Instructions

Before starting the unit, check the power supply, water system, and unit status to ensure there are no abnormalities;
Start the unit and observe whether the operating parameters are normal;
Adjust the water temperature as needed, but do not set the water temperature too low or too high;
Regularly record operating data for maintenance and analysis purposes.

Precautions

The installation location must be well-ventilated and protected from direct sunlight;
Take necessary precautions against freezing in low-temperature environments during winter;
Regularly clean the pipe filter and remove foreign objects from the external fins of the heat exchanger to maintain efficient operation;
Non-professional person should not disassemble the unit without authorization;
Drain the system of water when it is not in use for an extended period.

Proper operation and maintenance can extend the unit's lifespan and improve energy efficiency. Users should strictly follow the instructions in the manual and contact professional people immediately if any abnormalities occur.

Parameter	Value
Rated heating capacity	21kW (ambient temperature 20℃, inlet water temperature 15℃, outlet water temperature 55℃)
Input power	4.441kW
COP	4.73
Maximum outlet water temperature	60℃, meeting the hot water needs of most environmental conditions
Compressor	internationally renowned brand variable frequency compressor
Heat exchanger	independently developed and manufactured high-efficiency heat exchanger, corrosion-resistant and scale-resistant, extending service life by 20%
Throttling technology	Intelligent variable frequency throttling technology automatically adjusts output power according to water volume, achieving energy savings of over 25%
Power supply specifications	3-phase 380V/50Hz
Water flow rate	3.6m3/h
Hot water production rate at normal temperature	0.451 m3/h
Body size	1000×390×930mm
Net weight	232kg
Protection class	IPX4

TENESUN low-temperature commercial heat pump water heater variable frequency unit uses R32 environmentally friendly refrigerant and full DC variable frequency scroll jet enthalpy enhancement technology, operating stably in an ultra-wide temperature range of -35℃ to 50℃. The intelligent control system can precisely regulate water temperature, suitable for various places such as residences, shopping malls, and hotels, providing a stable supply of hot water 24 hours a day. The high-efficiency heat exchange design improves the overall energy efficiency of the unit, reducing system energy consumption and costs. The water tank size can be flexibly matched to meet the hot water needs of commercial establishments of different sizes. It can be installed in outdoor open spaces, balconies, and other areas without occupying a large amount of space.