mini air source heat pump

A mini air source heat pump is a compact and environment friendly heating and cooling answer that makes use of ambient air to alter indoor temperatures in smaller spaces, such as apartments, tiny homes, or particular zones inside large buildings.

A mini air supply warmness pump is a compact and environment friendly heating and cooling answer that makes use of ambient air to adjust indoor temperatures in smaller spaces, such as apartments, tiny homes, or unique zones inside large buildings. A mini air supply pool warmness pump is designed especially for heating pool water through extracting warmness from the ambient air. a mini geothermal warmth pump makes use of the secure temperatures observed underground to warmth or cool a pool.

One of the primary advantages of mini air source heat pumps is their variable-speed inverter technology.

Enamel Water Tank Brings You Healthier Water Quality

High pressure and fatigue resistance which pass 280,000 times pulse test.

High corrosion resistance because enamel coating makes the welding line of steel plate seperate with water, so with long working life.

Our Porcelain enamel tanks approved by CE, WATER MARK, ETL, WRAS, EN12977-3.

High efficient Micro-Channel Heat Exchanger

Larger heat exchange area, Better heat transfer effect and More durable performance.

The Coefficient of Performance of the system can reach 4.25 even above.

Not touch with water in the water tank, so the heat exchanger has no risk of corrosion, scaling, leakage, etc.

Library Level 40dB Silence

Centrifugal fan, smooth air intake

Double plate air guiding, optimizing air duct

Double layer soundproofing, reducing radiation

Double piece evaporator makes it more optimized

High Efficient Compressor

Being a compressor for heat pumps from a globally recognized brand, it operates more quietly and is more dependable when matched to the system.

Intelligent Defrosting

You can have a more comfortable winter thanks to its clever defrosting design, which can completely eliminate heat exchanger bottlenecks in cold weather like frosting and delayed heating.

1:1 Gold Ratio

The unit and water tank are matched with a gold ratio to eliminate the phenomenon of disharmony, so that it is more energy-saving and professional.


Intelligent Control Electric Expansion Valve

The electric expansion valve can control the refrigerant volume more accurately to ensure the unit stay in the best state.

Technical Parameters:

ModelKRS75A-250VKRS75A-300V
Tank Capacity250L300L
Inner Tank MaterialEnamelled Steel
(Steel BTC340R, 2.5mm thickness)
Enamelled Steel
(Steel BTC340R, 2.5mm thickness)
Outer casingPainted galvanized steelPainted galvanized steel
Tank Rated Working Pressure0.8MPa0.8MPa
Waterproof gradeIPX4IPX4
CondenserMicro-Channel Heat ExchangerMicro-Channel Heat Exchanger
Electric Element Power2500W2500W
Heat Pump Rated Input827W827W
Heat Pump Output3300W3300W
Max. Input Power4000W4000W
Heating Capacity75L/H75L/H
Max. Water Temperature75℃75℃
Voltage~220-240V / 50Hz~220-240V / 50Hz
RefrigerantR134aR134a
Cop4.084.08
Inlet / Outlet size¾”¾”
Control MethodRemote displayRemote display
Noise Level40dB(A)40dB(A)
DimensionsØ650×1765mmØ650×1950mm

How It Works:

All in one heat pump water heaters are solutions where the domestic hot water is heated by an integrated heat pump

  • The fan inhales ambient air transferring its energy to the refrigerant agent in the evaporator thus changing from liquid to gas.
  • The gas is further heated by compression.
  • In the condenser the gas transfers its accumulated heat to the water tank. As it gets colder it transforms back to fluid. The pressure of the fluid is further reduced by the expansion valve.
  • The electric back-up heating starts only when required during insufficient heat pump working conditions.

What is an all-in-one heat pump?

An HVAC system that combines heating and/or air conditioning and has all of its parts installed in one cabinet is known as an all-in-one system. The conventional indoor-outdoor separation arrangement stands in stark contrast to this.

What are the pitfalls of a heat pump water heater?

High upfront costs and complex installation. For many homes, the initial investment in heat pump water heaters can be a significant hurdle: Price tag: Despite the long-term savings, the initial cost of these devices is higher compared to traditional electric water heaters, making them more energy efficient.

all in one heat pump Youtube guide

System Installation Diagram

Installation and Operation Manual:

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