Lennox International Inc (2/4)SA13 Electrical Access, Typical Wiring Connections, Thermostat

Page 5

WARNING

Unit must be grounded in accordance with national and local codes. Failure to ground unit properly can result in personal injury or death.

Power supply to the unit must be N.E.C. Class 1, and must comply with all applicable codes. A fused disconnect switch should be field provided for the unit. The switch must be separate from all other circuits.

If any of the wire supplied with the unit must be replaced, replacement wire must be of the type shown on the wiring

diagram. Electrical wiring must be sized to carry minimum circuit ampacity marked on the unit. Use copper conduc- tors only. Each unit must be wired with a separate branch

circuit and be properly fused.

Electrical Access

Heater Power Entry

Thermostat

Entry

Line Voltage

Entry

Figure 5

Thermostat

The room thermostat should be located on an inside wall where it will not be subject to drafts, sun exposure, or heat from electrical fixtures or appliances. Follow the

Typical Wiring Connections

THERMOSTAT

OUTDOOR UNIT

 

R

R

 

C

C

ECONOMIZER

Y

Y

 

 

NOT

 

 

INSTALLED

W

W1

 

W2

 

 

 

G

G

CAUTION

 

 

Do not connect C connections except when

 

 

required by the indoor thermostat. Refer to the

 

 

thermostat installation instructions.

 

 

 

L2

L1

GROUND

SCREW

POWER WIRING

208/230-1-60

(90°C MIN. WIRE)

POWER WIRING

24V CONTROL WIRING (NEC CLASS 2)

*W1, W2 CAN BE USED TO STAGE ELECTRIC HEAT ACCESSORY ON 15 & 20 KW MODELS.

*5 & 10 KW HEATER ACCESSORY FUNCTION OFF W1 ONLY.

TYPICAL WIRING CONNECTION

1 PHASE

THERMOSTAT

 

OUTDOOR UNIT

ECONOMIZER

 

R

 

R

 

 

C

 

C

BLUE

 

Y1

 

 

WHITE

 

 

 

Y

YELLOW

 

W

 

W1

 

 

 

W2

 

 

 

 

 

 

G

 

G

GREEN

CAUTION

 

 

 

 

Do not connect C connections except when

Y2

 

 

BLACK

required by the indoor thermostat. Refer to the

 

 

 

 

thermostat installation instructions.

L3

L2

L1

 

 

 

 

 

GROUND

 

 

 

 

SCREW

 

POWER WIRING

200/230-3-60, 460/575-3-60

(90°C MIN. WIRE)

POWER WIRING

24V CONTROL WIRING (NEC CLASS 2)

*W1, W2 CAN BE USED TO STAGE ELECTRIC HEAT ACCESSORY ON 15 & 20 KW MODELS.

*10 KW HEATER ACCESSORY FUNCTION OFF

W1 ONLY.

TYPICAL WIRING CONNECTION

3 PHASE

Figure 6

# 48392M005

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Contents Table of Contents Installation Maintenance InstructionsUsing Accessory Lift Kit InstallationInspection of Shipment LocationTypical Condensate Drain Connection Roof Curb AssemblyMinimum Clearance Requirements Removing Bottom Duct Covers Electrical WiringMinimum Required Surface Area For Disposable Filters FiltersThermostat Electrical AccessTypical Wiring Connections Compressor mounting bolts Heater Kit Accessory if used Heater Kit Accessory InstallationCompressor Removal of Unit from Common Venting SystemSuction Superheat OperationOwner Record Maintenance Electrical SHOCK, Fire Or Explosion HazardMotors Outdoor CoilLine Voltage Field Installed Wiring Diagram P/NLimited Warranty

(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.
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