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  4. Cold Climate Air-to-Water Heat Pumps
  • Cold Climate Air-to-Water Heat Pumps

Cold Climate Air-to-Water Heat Pumps

  • Product Item:Cold Climate Heat Pumps
  • Working Ambient Temperature : -25C to 43C
  • Max. COP: 5.65/5.53
  • Max. COP: 5.65/5.53
  • Function : Heating and Cooling
  • EVI Heat Pump  , Air Source Water Heater  , EVI+DC Inverter  , Low Noise  , Low Temperature Heat Pumps
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    Description

    Cold climate heat pumps are a revolution in heat pump technology and remain unmatched in cost and performance. Our engineers designed this heat pump on a mission to make it the most efficient cold climate heat pump on the market at ½ the price of a traditional geothermal heat pump. This is done without sacrificing quality. The design of the unit calls for the use of industry-leading components. This includes variable speed pumps, Panasonic EVI DC inverter compressors, European Sanhua valves and Chico digital control systems. All of this is utilized directly into the complete weatherproof enclosure.

     

    1. Integrated heating solutions

    Unlike any other cold climate heat pump system on the market, our cold climate heat pumps control your entire home heating and cooling needs, including domestic hot water. Heat pumps integrate multiple heat sources such as: radiant floor heating/cooling, forced air central Air handlers, split fan coils for individual room heating, low temperature radiators, and can also be integrated into any swimming pool or hot tub to provide full heat through our titanium heat exchangers. The Outdoor Unit (ODR) contains everything you need in one case (one piece). This results in no need to hire a refrigeration mechanic. All you need is an electrical connection with an outdoor rated disconnect (weather proof). The system requires a 240 VAC connection and dedicated circuit breakers for 20, 30, 40 amps, depending on the size of the cold climate heat pump.

     

    2. Built-in backup

    The backup heating circuit in the buffer tank can be automatically controlled by the heat pump itself, and the integration with the internal heater is simple and effective. The backup heater will only receive a signal from the cold weather heat pump if the heat pump can't keep up. This ensures that you never waste energy with two heat sources competing. Our buffer/boiler tanks are designed specifically for our cold weather heat pumps and include additional features like extra insulation and an internal port for temperature probes for more accurate temperature readings. The range of these tanks forms 4-29 kW.

     

    3. Scalability

    Instead of separating our products into 5 or 6 sizes, our technology allows us to combine heat pumps together to form larger heating systems as needed. With our MX controllers you can add up to 10 heat pumps. Our design works in parallel so each unit has its own pump, but the controller will manage all the heat pumps as if they were one large heat pump.

     

    4. User friendly controller

    Unlike other cold weather heat pumps that require direct communication with each zone, our heat pump uses simple differential controller logic that incorporates tank thermometer probes. Our tanks have a special copper probe port insert on the top and bottom so we can measure the tank accurately. The heat pump will automatically optimize to reach the design temperature set for the tank. As the weather changes, so does the heat pump, using only what is needed to keep the buffer tank at the set temperature. It can do this by changing the frequency of its DC inverter compressor to increase or decrease power as needed.

     

    So how does it work?

    Our plant controller systems can manage heating or cooling or both at the same time.

     

    1) heating

    2) cooling

    3) Heating and cooling

    4) + domestic hot water (with optional internal HX coil)

    If we set up the heat, the heat pump will turn on and start the circulation pump and heat the buffer tank unit to the desired set point temperature. The cooling is the same, the only difference is that the buffer tank is a special foam tank that is designed not to sweat and condense, and the heat pump will shut off when the buffer tank reaches its set low temperature.

     

    We can also set heating and cooling at the same time, for example in summer when you want to cool the house and heat domestic hot water. In this case we use the optional internal HX in the buffer tank. It is 160 feet of copper and is capable of 94-97% efficiency. In this mode (heating and cooling) our heat pump will first heat the hot water buffer tank to ensure there is hot water, then it will activate a 3-way valve and switch to the cooling tank and reverse its function to cooling. If domestic hot water is not needed in summer, heating and cooling can be done on one tank.

     

    What system is best for an air-to-water heat pump?

    Like most geothermal installations, we use R410a Eco Freon, the properties of this refrigerant fluid produce a maximum design temperature of 60C (140 F). However, we recommend system design temperatures below 51C (125F) to maximize heat pump performance. Therefore, radiant floor heating is an important source of heat for our ATW heat pumps. However, we also offer freestanding wall mounted fan coil units for room zoning. These special circulating fan coil units are designed to provide both heating and cooling in the 110-120 F water supply temperature range. For central heating and cooling our Hydronic Air Handlers for Heat Pumps are a perfect match for air-to-water heat pumps as they feature a specially designed 6-layer heat exchanger optimized for excellent performance at 120 F or lower .

     

    NOTE: The transmitter is not intended for use with heat pumps. Older technology air handlers require higher design temperatures, and cast iron boilers cannot operate at lower design temperatures.

     

    Please contact us to see if your current system will work or if you need an upgrade


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    Product Categories

    • Air Source Heat Pumps
      • Domestic Heat Pumps
      • Commercial Heat Pumps
      • Industrial Heat Pumps
    • Heat Pump Cylinders
    • Air to Water Heat Pumps
    • Swimming Pool Heat Pump
      • Residential Swimming Pool Heat Pump
      • Commercial Swimming Pool Heat Pump
      • Spa Heat Pump
    • Hot Water Heat Pumps
      • Domestic Hot Water Heat Pumps
      • Commercial Hot Water Heat Pumps
    • Underfloor Heating Heat Pumps
    • High Temperature Heat Pumps
    • Cold Climate Heat Pumps
      • Low Temperature Heat Pumps
      • EVI Heat Pumps
    • Geothermal Heat Pump
      • Ground Source Heat Pump
    • DC Inverter Heat Pumps
    • CO2 Heat Pumps

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    Latest Post

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    Cold Climate Heat Pump vs Geothermal
    2023-01-21
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  • LatestPost

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    +86 15603721115

    tyler@lnashp.com

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