HEAT − Using the Heat Mode

Enabling and Disabling Heat Mode

The thermostat must be in the HEAT mode to control the heating equipment. Press the Heat button to enable or dis- able HEAT mode. If the thermostat is in COOL or OFF mode, pressing the Heat button enables the HEAT mode (indicated by HEAT in the SYSTEM box − see figure 4).

 

 

 

Turn Heat ON/OFF

 

 

 

 

Heat

Cool

MO

 

 

 

 

 

AM

5:30 FAN

Prog

Day/Time

PM

 

HOLD

AUTO

 

 

 

 

 

 

 

SYSTEM

 

 

ROOM

SETPOINT

 

 

 

66° 70° HEAT

Fan

Hold

 

 

 

 

Settings Enter

Figure 4

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.

Heat/Cool Mode Disabled

ROOM

SYSTEM

°SETPOINT

75 75° OFF

Figure 5

Heating Demand

Set the thermostat to heat mode to control the heating equipment. Then, if the room temperature is lower than the temperature setpoint, as shown in figure 6, the thermostat detects a heating demand and will activate the heating equipment to satisfy the demand.

Heating Demand

ROOM

SYSTEM

SETPOINT

72°

75°

 

HEAT

 

Figure 6

Heating operation is indicated by a flame icon in the SYS- TEM box. 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 heating equipment has been turned off.

NOTE − Heating equipment is activated for at least 3 min- utes if no buttons are pressed during the demand interval.

COOL − Using the Cool Mode

Enabling and Disabling Cool Mode

Use the COOL button to enable or disable cool mode as desired. If the thermostat is in HEAT or OFF mode, cool mode is enabled when the COOL button is pressed. This is indicated by COOL in the SYSTEM box (see figure 7).

 

 

Turn Cool ON/OFF

 

 

Heat

Cool

MO

 

 

 

AM I0:30

FAN

Day/Time

 

HOLD

Prog

 

AUTO

 

ROOM

 

SYSTEM

 

SETPOINT COOL

 

75° 70°

Fan

Hold

 

 

Settings Enter

Figure 7

If the thermostat is in cool mode, pressing the Cool button disables COOL mode (indicated by OFF in the SYSTEM box − see figure 5).

Cooling Demand

Set the thermostat to cool mode to control the cooling equipment. Then, if the room temperature is higher than the temperature setpoint, as shown in figure 8, the thermo- stat detects a cooling demand and will activate the cooling equipment to satisfy the demand.

Cooling Demand

 

ROOM

 

SYSTEM

75°

SETPOINT

COOL

70°

OFF

 

 

HEAT

Figure 8

Cooling operation is indicated by flashing nowflake" icons in the SYSTEM box. When the actual temperature drops below the temperature setpoint, the snowflake icons will disappear. This indicates that the cooling demand has been satisfied and that the cooling equipment has been turned off.

NOTE − If no buttons are pressed during a demand for cooling, the equipment must operate for at least 4 minutes. After a demand has been satisfied, cooling equipment op- eration is locked out for 5 minutes. If another cooling de- mand occurs during this 5−minute interval,

snowflakes will flash; however, the cooling equipment will not operate until the 5−minute delay has elapsed.

Page 3

51M34 SERIES 5/2

Page 21
Image 21
Lennox International Inc 51M37 operation manual 51M34 Series 5/2

51M37 specifications

Lennox International Inc, a prominent player in the heating, ventilation, and air conditioning (HVAC) market, has made significant strides in innovation and technology in recent years. Among its notable offerings is the Lennox 51M37, a well-engineered component designed to enhance HVAC efficiency and reliability.

The 51M37 is primarily known for its advanced motor technology, incorporating ECM (Electronically Commutated Motor) design, which significantly reduces energy consumption compared to traditional motor systems. This motor type is key to Lennox's commitment to sustainability, as it not only maintains optimal performance but also minimizes the carbon footprint associated with residential and commercial heating and cooling tasks.

A standout feature of the 51M37 is its intelligent control system, which allows for more precise management of airflow and temperature. This technology can adapt to specific environmental conditions and consumption patterns, optimizing performance and providing substantial cost savings on energy bills. The integration of smart technology aligns with modern demands for energy efficiency and control, making the 51M37 a vital component in achieving higher energy ratings for HVAC systems.

In terms of compatibility, the 51M37 is engineered to work seamlessly with a variety of Lennox heating and cooling units, ensuring versatility for both new installations and retrofits. This compatibility enhances system integration, resulting in improved overall performance.

The construction of the 51M37 emphasizes durability and reliability, featuring high-quality materials that withstand the challenges of constant operation. Its robust design is perfect for diverse environments, ensuring that it functions reliably in both residential settings and commercial applications.

Another characteristic worth noting is the user-friendly installation process, allowing HVAC technicians to install the 51M37 with relative ease. This not only reduces labor costs but also ensures that the system can commence operation quickly without extensive downtime.

Overall, Lennox International's 51M37 embodies innovation, efficiency, and reliability in HVAC technology. With its advanced ECM motor, intelligent controls, and durable construction, it stands as a prime example of how modern HVAC solutions can lead to enhanced performance and energy savings. As the industry continues to evolve, products like the 51M37 will play a critical role in shaping the future of heating and cooling, aligning with sustainability goals and meeting the needs of consumers.