Welcome Hallowell’s Acadia All Climate Heat Pump
Burt Robertson, HVAC Marketing Manager
The Acadia is a cold weather heat pump that is able to extract heat from outdoor air all the way down to -30 °F and does not need to use any fossil fuel or electrical assistance. This low temperature operation, using the patented opti-cycle technology will save you money and keep you comfortable all year round.
At our recent Hallowell factory training school held at our newly renovated training center in our Liberty headquarters, Hallowell’s factory trainer, Douglas Henion introduced the Hallowell’s Acadia Combined Heating & Cooling System. Doug did a great job explaining the Boosted Compression Technology. Unlike a standard heat pump compressor that operates at one speed when on a call for heat, the Acadia has two compressors: one is a two piston two stage, the second is a booster compressor. On a call for heat, the two stage compressor starts to run on first stage using only one piston As the unit continues to run the thermostat send signals to the outdoor unit and the system will automatically change to second stage using both pistons in the dual compressor.
When the outdoor temperature gets below 25 °F the booster compressor will also come on. Try to think outside the box and forget how a typical heat pump works by putting out less heating BTUs per hour as the outdoor temperature drops. The Acadia is just the opposite. Everyone rates their units at 47 & 17 degrees as a standard. The Acadia will put out less capacity at 47 degrees than the standard unit due to the fact it will run on only one piston thus saving electric during first stage of heating. When you look at the 17 degree chart you will the Acadia heating BTU capacity has increased unlike the typical heat pump due to the second stage and booster compressor. Now take a look at the chart and see what this unit will do as it drops below zero down to -30. This system will put out rated capacity at -30 while the typical unit will have long shut off. Efficiencies are very close to geothermal without the need for digging multiple wells or large trenches, simply put a pad on the lawn and install just like a normal condenser. Ask your salesman for more information on the Hallowell Acadia.

1.Heating MBH values are based on ARI standard conditions of 70°F DB inlet air and
a 25 foot line set.
2.Heating capacities and efficiencies include the effects of defrosts in the
outdoor ambient temperature conditions when they occur.
3.COP is equal to the total BTU/hr output divided by the total BTU input (BTU input
= system input kW X 3.412)
4.All tests have been performed by Hallowell International following ARI Standards
210 / 240-2006 and ASHRAE Standard ANSI / ASHRAE 37-2005. Testing was not
performed at the request of the American Heating, Refrigeration, and Air
Conditioning Institute (AHRI). Testing was not part of the ARI certification
program. All testing was performed by Hallowell International or ETL Semko at
the request of Hallowell International.
5.SEER (Seasonal Energy Efficiency Ratio) is equal the total cooling BTU’s during a
typical year divided by the total electric power input in watt-hrs during the
same period. Normal annual usage is a combination of both 1st and 2nd stage
operation.
6.EER (Energy Efficiency Ratio) is equal to the total cooling output in BTU’s at an
outdoor ambient temperature.
7.SPF is the ratio of delivered heat energy in BTU’s to watt-hours consumed for an
entire heating season. Values calculated per ARI Standard 210/240-2006 section
4.2
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Last Updated:10/15/2009
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