Envision Peripherals Geothermal Indoor Split Heat Pumps installation manual Dual Fuel Systems

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ENVISION SERIES INSTALLATION MANUAL

Dual Fuel Systems

Envision units can be connected to fossil fuel furnaces that include an A-coil or slab coil. Dual fuel installations utilize the Envision heat pump for heating until the point that auxiliary heat is called for on the thermostat. At that point, the furnace will be enabled and the heat pump will be disabled. The Envision heat pump provides air conditioning through the furnace’s refrigerant coils.

Refer to the furnace manufacturer’s installation manual for the furnace installation, wiring and coil insertion. A WaterFurnace Dual Fuel thermostat, a field-installed DPST relay or dual capacity auxiliary heat relay is required. See Figure 2 for typical Dual Fuel application.

In add-on Envision Split applications, the coil should be located in the supply side of the furnace to avoid condensation damage to the furnace heat exchanger. A high temperature limit should be installed upstream of the coil to de-energize the compressor whenever the furnace is operating. Without this switch, the Envision Split will trip out on high pressure. A dual fuel thermostat can remove the Y1 and Y2 calls when a W call is energized to allow gas furnace backup on an Envision Split application. Refer to thermostat wiring on page 15 for details.

Figure 2: Typical Split System Heat Pump Coil Add-On Fossil Fuel Furnace

Air Temperature Limit Switch - to prevent compressor operation

Supply Duct

when entering air is greater than

90°F.

 

"A" or

 

Slab Coil

Disconnect

 

Insulated

 

Suction Line

 

Lineset To Air Handler

Wire To

Thermostat

Thermostat

 

Wire From Furnace

 

 

 

Condensate

 

 

Drain

 

 

(must be trapped)

DHW Out

 

 

DHW In

 

 

 

 

Up-Flow

 

 

Fossil Fuel

 

Return

Furnace

 

 

Water Out

Duct

 

 

 

Water In

 

 

P/T Plugs

 

 

Vibration Absorbing Pad or Air Pad

 

 

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Contents 410A Refrigerant Ton Single Speed Ton Dual Capacity Envision Series Geothermal Indoor Split Heat PumpsModel Nomenclature Physical CharacteristicsTable of Contents General Installation Information Utilizing Existing Coil or Air Handler Equipment SelectionConnection to Air Coil Air Handler InstallationDual Fuel Systems Swivel Connections Residential Units Water PipingRows Tube Air Handler Coil DataLine Set Sizes Envision Matching Air Coil SurfaceSolenoid Valve Open Loop Well Water SystemsWater Quality Solenoid WiringMultiple Units on One Flow Center Closed Loop Ground Source SystemsWater Tank Preparation Desuperheater ConnectionsDesuperheater Startup Plumbing InstallationElectrical Data Thermostat WiringElectrical General24V Accessory relay see SW2 3 for description of operation Wiring SchematicsHp Total Microprocessor Control Fan G only Cooling OperationLockout Conditions STG1 STG2 STG3 Emerg Single Speed Units Operation Logic DataFreeze Sensing Setting DIP Switch SettingsRefrigeration Position Description System ServiceCharging the System Leak TestingSystem Evacuation Initial System Charge CalculationDetermining Subcooling Pressure/Temperature Coversion Chart for R-410A Single Speed Models Unit Operating ParametersDual Capacity Models Unit Startup Before Powering Unit, Check The FollowingStartup Steps Final Evaluation Heating Cycle Analysis Unit Startup/TroubleshootingSingle Speed Pressure Drop and Recommended Flow RatesDual Capacity Refrigerant Systems TroubleshootingLED Definitions and Diagnostics Standard Microprocessor ControlsReplacement Procedures Preventive MaintenanceEnvision NZ Split Dimensional Data Physical DimensionsInstallation Notes

Geothermal Indoor Split Heat Pumps specifications

Envision Peripherals has established itself as a leader in the energy-efficient heating and cooling market with its advanced geothermal indoor split heat pumps. These systems are designed to utilize the earth's stable underground temperature as a renewable energy source, resulting in remarkable performance and sustainability.

One of the main features of Envision Peripherals geothermal indoor split heat pumps is their exceptional energy efficiency. With the ability to achieve a coefficient of performance (COP) exceeding 4.0, these heat pumps provide four units of heating or cooling for every unit of electricity consumed. This level of efficiency significantly reduces operational costs and lowers environmental impact, making them an ideal choice for eco-conscious consumers.

The technology employed in these systems emphasizes reliability and flexibility. The heat pumps are equipped with variable speed compressors, allowing them to adjust the heating and cooling output based on the current demands of the space. This results in consistent indoor temperatures and enhanced comfort. Moreover, the systems can seamlessly integrate with existing HVAC infrastructures, offering versatile installation options for residential and commercial applications.

Another characteristic that sets Envision Peripherals geothermal systems apart is their dual functionality. These units not only provide heating during the colder months but also excel in cooling during hot weather conditions. The geothermal heat pumps extract heat from the indoor air and transfer it to the ground, ensuring an efficient cooling process without the need for traditional air conditioning systems.

Durability and low maintenance are key aspects of Envision Peripherals heat pumps. Constructed with high-quality materials and advanced engineering, these systems are built to withstand varying environmental conditions. They feature a closed-loop system that minimizes wear and tear, reducing the frequency of repairs and providing homeowners and businesses with peace of mind.

In addition, Envision Peripherals emphasizes eco-friendliness. The use of renewable geothermal energy diminishes dependence on fossil fuels, contributing to a more sustainable living and working environment. Their commitment to sustainability aligns with global efforts to reduce greenhouse gas emissions and combat climate change.

In summary, Envision Peripherals geothermal indoor split heat pumps deliver exemplary energy efficiency, advanced technology, and a range of benefits, including dual functionality and reduced environmental impact. As the demand for sustainable heating and cooling solutions continues to grow, these systems represent a leading choice for consumers seeking comfort and energy savings.
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