At the beginning of the defrost cycle, both the outdoor condenser fan and compressor will turn off. After approximately 30 seconds, the compressor will turn on and begin to heat the outdoor coil causing the ice and snow to melt. NOTE: While the ice and snow is melting, some steam may rise from the outdoor unit as the warm coil causes the melting frost to evaporate. When defrost is completed, the outdoor fan motor will start, and the compressor will turn off again. In approximately 30 seconds the compressor will start up again and continue normal operation.

System Shutdown

Change the thermostat’s system mode to OFF and the fan mode to AUTO (See Figure 1). NOTE: The system will not operate, regardless of the temperature selector setting.

Warranty Information

A warranty certificate with full details is included with the heat pump. Carefully review these responsibilities with your dealer or service company. The manufacturer will not be responsible for any costs found necessary to correct problems due to improper setup, improper installation, adjustments, improper operating procedure on the part of the user, etc. Some specifi c examples of service calls which are not included in the limited warranty are:

1.Correcting wiring problems in the electrical circuit supplying the heat pump.

2.Resetting circuit breakers or other switches.

3.Adjusting or calibrating of thermostat.

INSTALLER INFORMATION

General Information

The installer should comply with all local codes and regulations which govern the installation of this type of equipment. Local codes and regulations take precedence over any recommendations contained in these instructions. Consult local building codes and the National Electrical Code (ANSI CI) for special installation requirements. Read the following instructions completely before performing the installation.

Some states require installation and service personneltobelicensed.Unqualifiedindividuals should not attempt to interpret these instructions or install this equipment.

This equipment contains R-410A refrigerant under high pressure. Installation or servicing should only be performed by qualifi ed trained personnel thoroughly familiar with this type equipment and related system components.

CAUTION:

This unit uses refrigerant R-410A. DO NOT under any circumstances use any other refrigerant in this unit. Use of another refrigerant will damage the unit.

Single packaged heat pumps are ready for easy and immediate installation and can be readily connected into the high static duct system of a home.This unit is completely assembled, wired, and run tested at the factory. This heat pump is designed for outdoor installation only. The only connections needed for installation are the supply and return ducts, the line voltage, and thermostat wiring.A complete heat pump system typically consists of:

•Single Package Heat Pump

•Home Fittings Kit

•Unit Fittings Kit

•2-Stage Cooling/Heating Thermostat

Use of components other than those specifi ed may invalidate ARI Certifi cation, Code Agency Listing, and limited warranty on the air conditioner.

Pre-Installation Check

Before you install this unit, the cooling load of the area to be conditioned must be calculated and a system of the proper capacity selected. It is recommended that the area to be conditioned be completely insulated and vapor sealed.

The electrical supply should be checked to determine if adequate power is available. If there is any question concerning the power supply, contact the local power company.

CAUTION:

To prevent personal injury and/or equipment damage, check thermostat manufacturer’s operation of fan relay circuit when in EMER HEAT. When the thermostat system mode is in the EMER HEAT position, the thermostat must energize the fan relay when the fan mode is in the AUTO position.

Inspecting Equipment:

All units are securely packed at the time of shipment and, upon arrival, should be carefully inspected for damage. Claims for damage (apparent or concealed) should be filed immediately with the carrier.

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Nordyne R-410A user manual Warranty Information, General Information, Pre-Installation Check, Inspecting Equipment
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R-410A specifications

Nordyne R-410A is a widely recognized refrigerant used in modern air conditioning and heat pump systems, known for its efficiency and environmentally friendly attributes. As a hydrofluorocarbon (HFC) refrigerant, R-410A has become the preferred choice for many manufacturers seeking to meet stringent environmental regulations while providing superior cooling performance.

One of the main features of R-410A is its higher energy efficiency compared to older refrigerants like R-22. This efficiency is primarily attributed to its higher pressure capabilities, which allow for improved heat transfer and reduced energy consumption in residential and commercial systems. As energy costs continue to rise, the use of R-410A in HVAC systems offers a viable solution for reducing utility bills while maintaining optimal comfort levels.

R-410A is also non-ozone-depleting, which sets it apart from many traditional refrigerants. While older refrigerants have been phased out due to their potential harm to the ozone layer, R-410A presents a sustainable alternative that aligns with environmental goals. It features a zero ozone depletion potential (ODP), making it a responsible choice for installations concerned with ecological impact.

In terms of technology, R-410A works effectively in both air conditioning and heat pump systems, providing reliable cooling in hot conditions and heat in colder months. It is compatible with a variety of system designs and can excel in both residential and commercial applications. Moreover, the thermodynamic properties of R-410A ensure consistent and reliable performance, regardless of the external temperature fluctuations.

Another characteristic of R-410A is its ability to operate at lower temperatures, which enhances its versatility. This capability allows for the design of systems that can function efficiently in a wider range of climate conditions. As a result, HVAC technicians and contractors benefit from its reliability and performance, leading to less frequent maintenance and enhanced customer satisfaction.

Lastly, R-410A systems are equipped with advanced components that improve overall functionality. These systems often include variable-speed compressors, which optimize energy use based on cooling demand, and advanced refrigerant management technologies that ensure safe and efficient operation.

In conclusion, Nordyne R-410A stands out as a superior refrigerant due to its energy efficiency, environmental benefits, and adaptability across a range of HVAC applications. As the industry continues to innovate and shift toward sustainable solutions, R-410A remains at the forefront of refrigerant technology, ensuring homeowners and businesses alike enjoy efficient and eco-friendly cooling options.
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