Applications and Furnace

Installation

NOTE: Remove refrigerant line knockouts in furnace only when installing indoor coil of an air conditioning or heat pump system.

Refer to instructions supplied with accessory equipment.

Over-the-Floor Return Air System (Non-Ducted)

1.If floor underneath furnace is made of com- bustible material, locate a pan fabricated of non-combustible material with 1” upturned flanges under furnace return air opening (see Figure 18).

2.Use optional upflow stand with filters or con- struct a suitably braced mounting platform in closet (see Figure 17 or 18).

3.Install 240V supply circuit(s) and 24V wir- ing to closet (see Figure 16 for appropriate locations).

4.Position optional coil cabinet onto upfl ow stand or mounting platform and secure with three or more fasteners.

5.Position furnace in upflow mode onto coil cabi- net and secure with two or more fasteners.

6.Use optional upfl ow duct connector or fi eld supplied connector to attach furnace to overhead supply duct. (see Figure 17)

7.Install return air grille in closet preferably at same level as upfl ow stand or below mounting platform (see Figure 18).

NOTE: Be certain to provide an adequate free return air area as described under Return Air Codes and Requirements and Closed-Off Space Requirements.

Through-the-Floor Return Air System (Ducted)

1.Prepare Floor Opening(s):

a.Mark fl oor opening(s) as shown in Figure 19. Provide minimum clearances at rear and left side walls of closet for installation of furnace and wiring.

b.Cut fl oor opening on outside edge of marked line so that opening is slightly larger than area marked.

c.Additional provisions may be necessary for optional air conditioning if refrigerant lines are installed other than at the front of the furnace.

2.If return air duct is made of combustible material, locate a pan fabricated of non- combustible material with 1” upturned fl anges under furnace return air opening.

3.Install 240V supply circuit(s) and 24V wir- ing to closet (see Figure 16 for appropriate locations).

4.Position optional coil cabinet over floor cutout and secure with three or more fasteners.

5.Position furnace onto coil cabinet and secure with two or more fasteners.

6.Use optional upfl ow duct connector or fi eld supplied connector to attach furnace to overhead supply duct (see Figure 17).

ELECTRICAL SYSTEM

INSTALLATION

WARNING:

To avoid the risk of electrical shock, personal injury or death, disconnect all electrical power to the unit before performing any maintenance or service.The unit may have more than one electrical power supply.

Codes, Specifications, and Re- quirements

The wiring, installation, and electrical hookup of this furnace must comply with the National Electrical Code (or the Canadian Electrical Code) and all regulations of local authorities having jurisdiction.SeeTable 9a & 9b for minimum circuit ampacity, maximum over-current protection, and recommended wire size. See the unit wiring diagram for other wiring details.

Supply-circuit requirements are as follows:

Coil Cabinet

Air Filter

 

Braced

 

Mounting

 

Platform

WALL

 

Front

 

Grille

 

 

FLOOR

 

Non-combustible

 

Pan or

 

Enclosure

Figure 18. Over-the-Floor Return Air

System

17

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Nordyne E3 Applications and Furnace Installation, Electrical System Installation, Codes, Specifications, and Re- quirements
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E3 specifications

The Nordyne E3 is an innovative and efficient heating and cooling system designed to meet the demands of modern residential and commercial spaces. With a focus on energy efficiency and advanced technology, the E3 series offers a variety of features tailored to provide optimal comfort throughout the year.

One of the standout characteristics of the Nordyne E3 is its multi-stage heating and cooling capability. This system utilizes a two-stage compressor, which allows it to operate at different capacities based on the current temperature demand. By adjusting its output, the E3 can maintain a more consistent indoor climate while maximizing energy savings. This not only enhances comfort but also reduces energy bills over time.

The E3 series also includes a variable-speed blower motor, which significantly improves airflow management. This technology enables the system to operate quietly and efficiently, reducing energy consumption while providing precise temperature control. Homeowners can enjoy a comfortable environment without the disruptive noise often associated with traditional HVAC systems.

Another key feature of the Nordyne E3 is its advanced refrigerant technology. The system uses R-410A refrigerant, an environmentally friendly option that has a lower impact on ozone depletion compared to older refrigerants. This commitment to sustainability aligns with the growing demand for eco-friendly solutions in the HVAC industry.

Additionally, the Nordyne E3 incorporates integrated Wi-Fi connectivity, allowing users to control their system remotely via smartphone or tablet. This smart technology enables homeowners to adjust temperature settings, monitor energy usage, and schedule maintenance alerts from virtually anywhere.

Energy Star certification further highlights the E3’s commitment to energy efficiency. Systems bearing this label are rigorously tested to ensure they meet strict guidelines for energy consumption, providing peace of mind for consumers looking to reduce their carbon footprint.

In summary, the Nordyne E3 heating and cooling system stands out for its energy-efficient design, advanced technologies, and commitment to comfort. With features like multi-stage operation, variable-speed motors, eco-friendly refrigerants, and smart home compatibility, it represents a significant step forward in HVAC technology. Homeowners can rely on the E3 to create a comfortable living environment while also contributing to a more sustainable future.
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