Showing results 1 - 50 of 163
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Right: dedicated tank connections for HPWH inlet and outlet provide hydraulic separation
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These schematics illustrate temporary deployment locations for probes during the commissioning process; these probes connect to smartphone commissioning applications.
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A central heat pump water heating system with a parallel loop tank temperature maintenance configuration uses a multi pass heat pump water heater to provide all the heat for hot water circulation temperature maintenance.
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A central heat pump water heating system with a parallel loop tank temperature maintenance configuration uses a multi-pass heat pump water heater to provide all the heat for hot water circulation temperature maintenance
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A central heat pump water heating system with a temperature maintenance swing tank configuration uses the water from the primary storage tank to provide most of the heat for hot water circulation temperature maintenance
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A cool room should have low enough heat gains to be easily cooled by a small single-zone cooling system such as a mini-split or a window air-conditioner as shown here
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A ducted minisplit heat pump is hidden in the ceiling of this centrally located room with short duct runs to the registers located on each wall of the room.
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A ductless heat pump is hidden behind a wall outcropping above the hallway ceiling.
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A foaming cleaner is used to clean the coils inside this ductless indoor unit; a mini-split bib surrounds the unit to contain overspray and drips
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A foaming sprayer and mini-split bib are required to properly clean this ductless wall-mounted indoor unit
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A ground source heat pump with an open-loop piping system using vertical injection and recharge
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A ground-source heat pump has the same components as a standard air-to-air heat pump except that the liquid-to-refrigerant heat exchanger coil is located inside rather than outside
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A ground-source heat pump used a fluid flowing through pipe loops to draw heat from or discharge heat the ground to heat or cool the indoor space.
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A ground-source heat pump with a closed-loop horizontal “Slinky™ “piping arrangement
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A heat pump clothes dryer is a type of condensing clothes dryer that uses heat pump technology to efficiently dry clothes
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A heat pump water heater has a small heat pump located on top of the tank which extracts heat from the surrounding air to create hot water.
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A high-efficiency heat pump is installed in a closet within this home’s conditioned space.
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A nitrogen pressure test was completed on this ductless mini-split heat pump using a digital manifold gauge.
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A permanent awning prevents snow and overflowing ice dams from causing damage to HVAC equipment below.
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A properly sized cold climate heat pump can meet 100% of a home’s heating load in nearly any location in the United States
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A properly sized high-efficiency heat pump is located in conditioned space in a closet inside the home.
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A single ductless heat pump heats and cools the country’s first DOE Zero Energy Ready certified manufactured home.
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A small, single-zone cooling system such as this ductless mini-split heat pump can be a very effective way to provide emergency cooling with a low power draw on a backup power system.
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A vacuum decay test is performed on this ductless mini-split heat pump using a digital micron gauge for accurate measurement; a deep vacuum is achieved quickly by using large diameter, vacuum-rated hoses, and removing valve cores
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Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions
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Alternative locations of heat pump water heaters in a hypothetical multifamily building using a cluster deployment showing numerous possible deployment options including clusters consisting of pairs on the same floor or on different floors
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Because heat pump clothes dryers recycle the hot air in the drum rather than venting it, they use 70% less energy than conventional electric clothes dryers while drying clothes in the same amount of time
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By plotting the heating capacities at -4°F and 5°F and drawing a line between them, the capacity at 0°F can be estimated
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Central heat pump water heaters like this fully packaged system provide efficient, reliable domestic hot water for multifamily buildings; storage tanks are within the enclosure, and the heat pump is seen just outside.
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Climate Zones Where a Heat Pump Water Heater can be Installed in Unconditioned Space
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Cold-climate heat pumps can provide heating and cooling even in climate zone 7; this home retained a fuel oil boiler system for backup on the coldest days.
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Condensate from this heat pump water heater is routed to a nearby floor drain, shared with the condensate lines from a condensing gas furnace and an air conditioning coil
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Ductless indoor units like this one are controlled individually by handheld remote controllers.
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Floorplan of a heat pump water heater located in a closet in an exterior corridor or breezeway rather than within the thermal envelope of a multifamily dwelling unit
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Floorplan of a heat pump water heater located in a closet in an interior corridor rather than within the thermal envelope of a multifamily dwelling unit
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Floorplan of a heat pump water heater located in an interior closet with active (ducted) ventilation
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Floorplan of a heat pump water heater located in an interior closet with passive ventilation
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Floorplan of a hypothetical multifamily building showing corridors and stairwells
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Floorplan of a hypothetical multifamily building with hot water First Hour Rating (FHR) requirements (in gallons) noted for each dwelling unit