Home

GeoThermal

PDF version

GeoSource® Vara™

The GeoSource Vara is the latest advancement from ECONAR® GeoSystems®. It's blower is equipped with a variable speed Electronically Commutated Motor (ECM). This blower provides perfect comfort throughout the year. It has the ability to be run continuously at a constant low airflow rate.

This gentle air circulation reduces hot and cold spots throughout your home, providing better comfort and actually reduces the need for the heat pump to cycle on and off. Also, by constantly moving air, you will have improved air quality because of the continuous air circulation across the air filter. For some, continuously running the fan and constantly filtering the air improves the lifestyle of those with allergies.

Even better, the blower can do this for only pennies a day. Another benefit of the variable speed blower in the GeoSource Vara is the soft ramping between airflow rates. With a conventional PSC (permanent split capacitor) blower motor, when the blower starts, there is very little time between no airflow and full airflow. This causes uncomfortable cold blasts of air in the winter and hot blasts of air in the summer. With the GeoSource Vara, the blower slowly increases in speed until it is at its desired airflow. This slow increase allows the heat pump to produce warmer air on startup in the winter and cooler, less humid air in the summer.

These features make the GeoSource Vara and ECONAR® GeoSystem® the leader in ColdClimate™ technology.

GeoSource® Vara 2 Plus™

What do you do to make a great ECONAR GeoSource heat pump based on ColdClimate™ technology better? You make it variable with a two-step compressor driving R-410a refrigerant and use an energy efficient variable speed Electronically Commutated blower Motor (ECM). This could be the best GeoSource heat pump ever!

Two-step scroll compressor: Controls heating or cooling more closely to the building's load. During most of the season, first stage engages operating at peak efficiency, but during cold or hot spells, the second stage engages providing full capacity heating or cooling at the high efficiencies GeoSource heat pumps are known for. Using ColdClimate technology, the Vara 2 Plus' first stage is designed to meet more of the seasons comfort needs providing maximum savings.

R-410A refrigerant: The next generation of refrigerant with no ozone depletion potential and increased energy savings.

ECM motors: The next generation in motor technology provides increased energy efficiency in two ways. First they operate far more efficiently than traditional PSC (Permanent Split Capacitor) motors. Where they really shine is when operated at lower fan speeds. PSC motors can be set to lower speeds but their energy consumption does not drop as fast as fan output. ECM motors realize significant savings as fan output is lowered. Secondly, ECM motors maintain compressor efficiency by increasing fan speed as airflow restrictions occur. By assuring compressor-required airflow, system efficiency and low operating costs are maintained. High energy efficiency, low cost operation, environmentally friendly and comfort, all from one ECONAR GeoSource Vara 2 Plus heat pump.

  • Air Heat Exchanger and Filter

    High-density technology coil with copper tubing in aluminum fins designed for ColdClimate regions providing the highest heating output in the industry at comparable cooling capacities. Includes an Allergy Gold filter for a cleaner system and homeowner comfort. Homeowner convenient front-loading filter rack with door.
  • Electrical Controls Total compressor lockout is activated by electronic   monitoring of low or high pressure for maximum system protection. Compressor and fan motors are staged for a softer start.
  • Filter/Drier Assures a clean, dry refrigeration circuit.
  • Reversing Valve All copper with low-pressure drop for maximum efficiency.
  • Water Heat Exchanger Brazed plate stainless steel heat exchangers provide maximum heat exchange at minimum pump pressure for reduced pumping costs.
  • Hot Water Generator (Optional) A double-wall desuperheater coil saves up to 75% on annual domestic water heating costs.
  • Air Pad (Standard) Included standard for even quieter operation.
  • Thermostat (Standard) 3-stage heat and 2-stage cool electronic thermostat included with every unit.
  • Electric Heater (Standard) Standard electric heater provides emergency heat or 3rd stage assist.
  • Blower Variable speed Electronically Commutated Motor (ECM) provides quiet, efficient air circulation.
  • Thermostatic Expansion Valve State-of-the art thermostatic expansion valve provides precise refrigeration control under a wide range of conditions.
  • Charge Optimizer Balances heating and cooling charge allowing optimum cold-climate capacities and efficiencies.
  • Compressor A hermetically sealed, two-step Compliant Scroll by Copeland delivers the highest efficiency and lowest sound level in the industry.
  • Cabinet Fully insulated baked-on powder epoxy finish over Galvaneal metal resists corrosion.