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D3CMW

Domestic Hot Water Air-To-Water Heat Pump

The Tempstar DHW-A2W heat pump system is a true all-in-one kit with indoor unit, outdoor unit, buffer tank, and domestic hot water tank. It’s the easiest way to add heat pump hot water. This unit is ready to install without additional hydronic specialties and carries a low cost of ownership with minimal maintenance and low operating costs. The D3CMW can be paired with a furnace or a boiler utilizing the “dual fuel switch”. Auxiliary electric heat is integrated into the indoor unit.

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Enhanced home comfort levels
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INCLUDE WARRANTY
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High Efficiency
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Quiet Operation
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Features & Benefits (open)
  • Ready to install without additional hydronic specialties
  • Adaptable system works in a variety of application types (forced-air heating and cooling, retrofitting a legacy radiant heating system, driveway heating system, or a combination)
  • Carries a low cost of ownership with minimal maintenance and low operating costs.
  • Auxiliary electric heat is integrated into the indoor unit
  • Quiet performance with sound levels as low as 52 decibels
  • Utilizes R-32 low GWP refrigerant with a global warming potential (GWP) of 675 kg / CO₂ equivalent
  • Brazed plate heat exchanger for Enhanced Vapor Injection (EVI)system
  • Available in 208/230V
  • See warranty card for details
Specifications
  • Up to 4.9 COP and 16.8 EER for premium energy savings
  • Can be paired with a furnace or a boiler utilizing the “dual fuel switch”
  • Utilizes R-32 low GWP refrigerant with a global warming potential (GWP) of 675 kg / CO₂ equivalent
  • Inverter-driven variable-speed rotary compressor
  • Cooling Capacity 1.5 - 4.3 tons
  • Heating Capacity: 20.5 - 58.0 MBH/heating
Product Details (open)
Reference: table
Documents
Reference: document-listing
Efficiency Rating Cooling Efficiency
Up to 16.8 EER

EER

The Energy Efficiency Ratio (EER) that calculates the energy the unit uses to function. It can be found by dividing a unit’s BTU output by its wattage, and the high EER2 rating means a more efficient unit, so the higher the better.

Efficiency Rating Heating Efficiency
Up to 4.9 COP

COP

The Coefficient of Performance (COP) measures the heating efficiency of an air-to-water heat pump by comparing the amount of heat output to the electrical energy input. A higher COP indicates a more efficient system.

Sound level Sound level
As low as 52 decibels*

Sound Level

A decibel is a unit used to measure sound or power level of an electrical signal by comparing it with a given level on a logarithmic scale.

Warranty
Warranty: Compressor in outdoor unit: 5 years. Indoor unit and outdoor unit: 3 years. Fitting: 1 year. Buffer tank: 5 years. Buffer tanks parts and accessories (including but not limited to insulation jacket and tank cover): 2 years. Water Heater Tank, Coil, and Heat Exchanger: 10 years. Water Heater Tank Parts and Accessories: 2 years. Subsequent owners receive the remainder of original owner’s warranty term.
Compressor
Variable-speed compressor operation

Compressor

The compressor pumps and compresses refrigerant, enabling heat transfer to condition the air efficiently.

Refrigerant
Lower global warming potential R-32 refrigerant

Refrigerant

Refrigerant absorbs heat from indoor air in the evaporator coil and releases it outside through the condenser coil, enabling the cooling process.

Cooling capacity Cooling capacity
1.5–4.3 tons

Cooling capacity

The cooling capacity of an air conditioner or heat pump indicates the amount of heat it can remove per hour. It is measured in tons, with one ton equaling 12,000 BTUs.

Heating capacity Heating capacity
20.5 - 58.0 MBH/heating

Heating Capacity

Heating capacity, measured in MBH (thousand BTUs per hour), indicates the amount of heat an air-to-water heat pump can deliver.

BTU (British Thermal Unit) is a unit of energy that represents the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Categories
heat-pumps

*Quietest size within each model group during most common cooling operating condition.

+ 10-Year Parts Limited Warranty: Timely registration required for 10-year parts limited warranty. Limited warranty period is 5 years if not registered within 90 days of installation. Jurisdictions where warranty benefits cannot be conditioned on registration will receive the registered limited warranty periods. Please see warranty certificate for further details and restrictions.

California residents please see Proposition 65