Setting Equipment

WARNING

Do not install the furnace on its front or its back. Do not connect the return air ducts to the back of the fur nace. Doing so will adversely affect the operation of the safety control devices, which could result in per sonal injury or death.

The EL180UHE gas furnace can be installed as shipped in either the upflow position or the horizontal position. Select a location that allows for the required clearances that are listed on the unit nameplate. Also consider gas supply connections, electrical supply, vent connection, and installation and service clearances [24 inches (610

mm)at unit front]. The unit must be level.

NOTE - Units with 1/2 or 3/4 hp blower motors are equipped with three flexible legs and one rigid leg. See figure 6. The rigid leg is equipped with a shipping bolt and a flat white plastic washer (rather than the rubber mounting grommet used with a flexible mounting leg). The bolt and washer

must be removed before the furnace is placed into op

eration. After the bolt and washer have been removed, the

rigid leg will not touch the blower housing.

Units with 1/2 or 3/4 HP Blower Motor

RIGID LEG

remove shipping bolt and washer

FIGURE 6

Upflow Applications

Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or al cove installations are shown in figure 7.

Upflow Application Installation Clearances

	Top
Left Side		Right Side
	Bottom
Type of Vent	Type C	Type B1
Connector	Type C	Type B1
Connector
Top	1 in. (25 mm)	1 in. (25 mm)

*Front	2-1/4 in. (57 mm)**	2-1/4 in. (57 mm)

Back	0	0

Sides	0†	0

Vent	6 in. (152 mm)	1 in. (25 mm)

Floor	0‡	0‡

*Front clearance in alcove installation must be 24 in. (610 mm). Maintain a minimum of 24 in. (610 mm) for front service access. ** 4-1/2” if single wall vent pipe is used.

‡For installation on a combustible floor, do not install the furnace directly on carpeting, tile or other combustible materials other than wood flooring.

†Left side requires 3 inches if a single wall vent is used on 14-1/2 inch cabinets, or 2 inches if a single wall vent pipe is used on 17-1/2 inch cabinets.

FIGURE 7

Page 8

EL180UHE specifications

Lennox International Inc. has long been a leader in providing innovative heating and cooling solutions, and the EL180UHE represents a notable advancement in their line of high-efficiency gas furnaces. Designed to meet the demands of residential heating, this unit combines advanced technology with user-friendly operation and significant energy savings.

One of the standout features of the EL180UHE is its efficiency rating, with an Annual Fuel Utilization Efficiency (AFUE) of up to 80%. This high efficiency not only helps homeowners save on energy bills but also reduces their carbon footprint. The furnace is equipped with a reliable, multi-speed blower motor, which enhances comfort levels by maintaining consistent air circulation throughout the home.

The EL180UHE employs advanced combustion technologies, such as Lennox's low-NOx burner, which minimizes nitrogen oxide emissions, contributing to a cleaner environment. The unit is also designed with a sealed combustion system that draws air directly from the outdoors rather than from inside the home, leading to improved indoor air quality and increased safety.

Another significant characteristic of the EL180UHE is its whisper-quiet operation. This is achieved through well-engineered insulation and a design that minimizes noise levels, allowing for a comfortable living environment without disruptive sounds. Many homeowners appreciate the quiet performance, especially during the night or in spaces where noise is a concern.

The installation process is straightforward, supported by Lennox's user-friendly design. The EL180UHE is compatible with various home configurations and can easily integrate with existing HVAC systems. Additionally, it has a compact footprint, making it suitable for homes with space constraints.

Further enhancing its appeal, this gas furnace features robust warranty options, reflecting Lennox's commitment to quality and customer satisfaction. Homeowners can rest assured that they are investing in a durable product that has been built to last.

In conclusion, Lennox International Inc.'s EL180UHE gas furnace exemplifies the company's dedication to innovation, efficiency, and reliability in home heating solutions. With its high AFUE rating, advanced combustion technology, quiet operation, and user-friendly design, the EL180UHE is an excellent choice for homeowners looking to enhance their comfort while minimizing energy costs.