Heating Control, Cooling Control | Lennox International Inc L3011C

ROOM 70


		FAN
		AUTO


		SYSTEM
		HEAT
		HEAT

Figure 2. Display − Home Screen

Figure 2 illustrates the HOME screen. Note that an indoor room temperature of 70°F is initially displayed. After about 1 minute of warm−up time, the actual room temperature will be displayed. HEAT mode is the system default (as indi- cated in the SYSTEM box at lower right).

A pale blue display backlight will turn on each time a key is pressed. The backlight will turn off 8 seconds after the last key is pressed.

Heating Control

The HEAT button is located behind the small door on the right−hand side of the thermostat. See figure 3.

Figure 3. Additional Thermostat Buttons

Enabling and Disabling Heat Mode

Use the HEAT button to enable or disable heat mode as desired. If the thermostat is in off mode, heat mode is en- abled when the HEAT button is pressed. This is indicated by HEAT in the SYSTEM box as shown in figure 4.

ROOM	69


		FAN
	64	AUTO


SETPOINT		SYSTEM
		HEAT

Figure 4. Heat Mode Enabled

If the thermostat is in heat mode, heat mode is disabled when the HEAT button is pressed. This is indicated by OFF in the SYSTEM box as shown in figure 5.

ROOM	69


		FAN
	64	AUTO


SETPOINT		SYSTEM
		OFF

Figure 5. Heat Mode Disabled Heating Demand

The thermostat must be in heat mode in order to properly control the heating equipment. When in heat mode, if the actual temperature is lower than the temperature setpoint, a heating demand is detected by the thermostat. The thermo- stat will then activate the heating equipment to satisfy the de- mand. Heating operation is indicated by a flame icon in the SYSTEM box as shown in figure 6.

ROOM 72 FAN

AUTO

88 SYSTEM

HEAT

Figure 6. Heating Demand

When the actual temperature rises above the temperature setpoint, the flame icon will disappear. This indicates that the heating demand has been satisfied and that the heat- ing equipment has been turned off.

NOTE − The heating equipment is activated for at least 3 minutes if no buttons are pressed during the demand inter- val.

Cooling Control

The COOL button is located behind the small door on the right-hand side of the thermostat. See figure 3.

Enabling and Disabling Cool Mode

Use the COOL button to enable or disable cool mode as necessary. If the thermostat is in off mode, cool mode is enabled when the COOL button is pressed. This is indi- cated by COOL in the SYSTEM box.

If the thermostat is in cool mode, cool mode is disabled when the COOL button is pressed. This is indicated by OFF in the SYSTEM box.

506079−01 02/08

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ComfortSenset 3000 Series Non-Programmable Thermostat, L3011C specifications

Lennox International Inc. has established itself as a leader in the heating and cooling industry, and the ComfortSense 3000 Series Non-Programmable Thermostat, model L3011C, is a testament to the company's commitment to quality and innovation. Designed for homeowners who prioritize simplicity without sacrificing efficiency, this thermostat brings together user-friendly features and advanced technology for optimal climate control.

One of the standout features of the L3011C is its intuitive interface. The large, backlit display provides clear visibility of temperature settings and system status, ensuring that users can easily read and adjust their thermostat even in low-light conditions. The simple, straightforward controls make it easy to set the desired temperature without the confusion that often accompanies more complex programmable models.

In terms of functionality, the ComfortSense 3000 series supports a range of heating and cooling systems, making it a versatile choice for many households. Whether your home uses gas, electric, or heat pump systems, the L3011C is compatible, allowing for seamless integration and efficient operation. This adaptability ensures that homeowners can maintain their ideal comfort levels year-round without needing to invest in multiple thermostats.

Another key characteristic of the L3011C is its energy efficiency. By maintaining consistent temperature settings, the thermostat helps reduce energy consumption, ultimately leading to cost savings on utility bills. The user can also easily switch between heating and cooling modes, making it a practical solution for fluctuating seasonal needs.

Durability is yet another highlight, as the ComfortSense 3000 is built with high-quality materials to ensure long-lasting performance. The thermostat is designed to withstand everyday use while maintaining accuracy in temperature regulation—a crucial feature for comfort control.

Safety features such as battery backup ensure that the thermostat continues to function seamlessly even during power outages, providing reliability when it matters most.

In summary, the Lennox ComfortSense 3000 Series Non-Programmable Thermostat, L3011C, combines effectiveness, simplicity, and reliability into one user-friendly device. With its intuitive interface, broad compatibility, energy efficiency, and durable design, it is an excellent choice for homeowners seeking straightforward climate control solutions. Lennox's dedication to quality is evident in the L3011C, making it a valuable addition to any home.

Lennox International Inc L3011C operation manual Heating Control, Cooling Control, Room 72 FAN

Models: ComfortSenset 3000 Series Non-Programmable Thermostat L3011C

ROOM 70