Compressor

manufacturer’s instructions enclosed with thermostat for general installation procedure. Color-coded insulated wires (#18 AWG) should be used to connect thermostat to unit. Four wires are required for cooling.

Units are shipped with compressor mountings factory- adjusted and ready for operation. Caution: Do not loosen

compressor mounting bolts.

Heater Kit Accessory (if used)

The unit is fully equipped for cooling operation without auxiliary heat. A heater kit accessory may also be used.

To install the heater kit accessory (see Figure 7):

1.Disconnect the power and remove the heater compart- ment access panel.

2.Disconnect the plug separating the high voltage wire harness. Remove the high voltage wire harness plug and discard.

3.Remove the heater blockoff by removing the four screws holding it in place.

4.Insert the heater into the control panel and fasten in the same mounting holes.

5.Plug the heater wiring harness into the wire harness on the control assembly. Field wiring of the auxiliary heater is separate from the unit power supply. Wire the power supply wiring for the heater to the appropriate connections on the heater kit.

6.Replace the heater compartment access panel and reconnect the power.

Removal of Unit from Common Venting System

When an existing furnace is removed from a common venting system serving other appliances, the venting system is likely to be too large to properly vent the remaining attached appliances.The following test should be conducted with each appliance while the other appliances connected to the common venting system are not in operation.

1.Seal any unused openings in the common venting system.

2.Visually inspect the venting system for proper size and horizontal pitch and determine there is no block- age or restriction, leakage, corrosion, or other deficien- cies which could cause an unsafe condition.

3.Insofar as is practical, close all building doors and windows between the space in which the appliances remaining connected to the common venting system

Page 6

Heater Kit Accessory Installation

Heater

Blockoff

Heater

Compartment

Access

Panel

Heater Kit

Figure 7

are located and other spaces in the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

4.Following the lighting instructions, place the unit being inspected in operation. Adjust the thermostat so the appliance will operate continuously.

5.Test for spillage at the draft control relief opening after 5 minutes of main burner operation. Use the flame of a match or candle.

6.Follow the preceding steps for each appliance con- nected to the common venting system.

7.After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers, and any other fuel burning appliance to their previous condition of use.

8.If improper venting is observed during any of the

above tests, the common venting system must be corrected. See National Fuel Gas Code, ANSI

Z223.1 (latest edition) or CAN/CGA B149.1 & .2 Canadian Installation Codes to correct improper operation of common venting system.

# 48392M005

(2/4)SA13 specifications

Lennox International Inc. is a leading global provider of innovative climate control solutions for residential and commercial applications. Established in 1895 and headquartered in Richardson, Texas, Lennox has built a reputation for developing high-efficiency heating, ventilation, and air conditioning (HVAC) systems that prioritize energy savings and sustainability.

At the core of Lennox's success is its commitment to technological advancement. The company has pioneered numerous technologies that have revolutionized HVAC systems, such as the introduction of variable-speed air conditioners and smart thermostats. Their Signature and Elite series products feature advanced cooling and heating technologies that optimize energy usage and enhance indoor comfort.

One of the standout features of Lennox products is their sustainability focus. Many of their systems are designed to achieve high Seasonal Energy Efficiency Ratios (SEER) and Annual Fuel Utilization Efficiency (AFUE) ratings, which help consumers save on energy costs and reduce their environmental impact. The company’s dedication to energy efficiency is further exemplified by its use of eco-friendly refrigerants, aligning with industry standards and environmental initiatives.

Lennox is also well-known for integrating smart home technologies into its HVAC systems. The iComfort S30 Smart Thermostat, for instance, offers users the ability to control their home climate remotely via a smartphone app. It utilizes advanced algorithms to learn user preferences and adjust settings accordingly, ensuring optimal comfort while maximizing energy savings.

Furthermore, Lennox’s robust offerings cater to a diverse range of residential and commercial needs, providing tailored solutions for both new construction and retrofit projects. Their broad product portfolio includes air conditioners, heat pumps, furnaces, indoor air quality products, and smart home systems, signifying their comprehensive approach to climate control.

Beyond product innovation, Lennox places a strong emphasis on customer service and support. The company provides extensive training programs for contractors, ensuring that their installations and maintenance services meet high standards of quality. This commitment to excellence has built strong relationships with customers and professionals alike.

Overall, Lennox International Inc. embodies a forward-thinking approach in the HVAC industry, combining cutting-edge technologies, sustainability, and exceptional customer service to deliver superior climate control solutions worldwide. As the demand for energy-efficient systems grows, Lennox is well-positioned to lead the way in transforming how we heat and cool our spaces.