Lennox International Inc G24M SERIES Filters, Thermostats, Honeywell VR8205 Series GAS Valve

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Placing Furnace Into Operation

G24M units are equipped with an electronic ignition system. Do not attempt to manually light burners on these furnaces. Each time the thermostat calls for heat, the burner will auto- matically light.

Use only your hand to turn the gas control knob. Never use tools. If the knob will not turn by hand, do not try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

THERMOSTATS

FIGURE 1

Gas Valve Operation

1 - STOP! Read the safety information at the beginning of this section.

2 - Set the thermostat to lowest setting. See figure 1. 3 - Turn off all electrical power to the unit.

4 - This furnace Is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.

5 - Remove the access panel.

6 - White Rodgers 36E Gas Valve - Turn knob on gas valve

180Geither way to OFF. See figure 2.

Honeywell VR8205 Gas Valve - Turn knob on gas valve

clockwise to OFF. Do not force. See figure 3.

7 - Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. If you do not smell gas go to next step.

HONEYWELL VR8205 SERIES GAS VALVE

ON

OFF

GAS VALVE SHOWN IN OFF POSITION

FIGURE 3

8 - White Rodgers 36E Gas Valve - Turn knob on gas valve 180Geither way to ON.

Honeywell VR8205 Gas Valve - Turn knob on gas

valve counterclockwise to ON. Do not force. 9 - Replace the access panel.

10- Turn on all electrical power to unit.

11- Set the thermostat to desired setting.

NOTE-When unit is initially started, steps 1 through 11 may need to be repeated to purge air from gas line.

12- If the appliance will not operate, follow the instruc- tions “Turning Off Gas to Unit” and call your service technician or gas supplier.

Turning Off Gas to Unit

1 - Set the thermostat to the lowest setting.

2 - Turn off all electrical power to the unit if service is to be performed.

3 - Remove the access panel.

4 - Turn knob on White Rodgers gas valve 180Geither way to OFF; turn knob on Honeywell valve clockwise to OFF. Do not force.

5 - Replace the access panel.

Filters

WHITE RODGERS￿￿￿

36E SERIES GAS VALVE

2=CA"

GAS VALVE SHOWN IN OFF POSITION

FIGURE 2

G24M series units are equipped with external filters which should be inspected monthly and replaced when neces- sary to assure proper furnace operation. See table 1 for filter sizes. Replacement filters used with G24M-40/60/75 units must have a minimum velocity rating of 400 FPM. Replacement filters used with G24M-100/120/140 units require a minimum velocity rating of 625 FPM. Figures 4, 5 and 6 show possible filter locations.

TABLE 1

FILTER SIZE

MODEL NUMBER

UPFLOW

DOWNFLOW

 

 

 

 

1 FILTER

2 FILTERS

 

 

 

 

 

 

G24M-45/60/75

16 in. X 20 in. X 1 in.

16 in. X 20 in. X 1 in.

 

 

 

G24M-100/120/140

20 in. X 20 in. X 1 in.

16 in. X 20 in. X 1 in.

 

 

 

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Contents Series 50HZ G24M Parts Identification Upflow Position Downflow PositionImportant Directions Lighting Information and OperationFilters ThermostatsHoneywell VR8205 Series GAS Valve 36E Series GAS ValveBlower Burner FlameFlame Rollout Safety Switches Service ReminderSafety Precautions Planned Service

G24M SERIES specifications

Lennox International Inc. is a well-respected name in the HVAC industry, known for its innovative and energy-efficient products. Among its impressive lineup, the G24M Series stands out as a reliable solution for residential and light commercial applications. The G24M Series is designed to provide optimal heating and air conditioning performance while maximizing energy efficiency.

One of the standout features of the G24M Series is its versatile performance capabilities. Equipped with a multi-speed blower motor, the system can adjust airflow for various heating and cooling needs, ensuring comfort in any season. This adaptability allows users to benefit from consistent temperatures without the fluctuations often associated with traditional HVAC systems. Additionally, the G24M Series uses advanced engineering to minimize noise levels, delivering a quieter living environment.

The G24M Series also emphasizes energy efficiency, boasting high Seasonal Energy Efficiency Ratios (SEER) and Heating Seasonal Performance Factors (HSPF). These ratings indicate that the unit consumes significantly less energy compared to standard models, which can lead to lower utility bills. Lennox’s dedication to sustainability is evident in the G24M Series, as it meets or exceeds energy efficiency standards set by government regulations.

A unique technology incorporated within the G24M Series is its use of communicating technology. This feature allows the system to communicate with compatible smart thermostats and controls, enabling users to optimize settings with ease. This connectivity supports remote access via mobile devices, providing convenience and enhancing user comfort by allowing for temperature adjustments even when users are away from home.

Moreover, the G24M Series is engineered with durable components that enhance overall reliability. With a robust design and quality construction, this system is built to withstand various environmental conditions while requiring minimal maintenance. The system’s longevity is reinforced by regular performance checks and system diagnostics, ensuring peak operation over time.

In conclusion, the Lennox G24M Series encompasses key features that address both comfort and efficiency. With its multi-speed blower, energy-efficient performance, advanced technology, and durable design, the G24M Series is an ideal choice for anyone looking to improve their indoor climate while reducing energy costs. Lennox International Inc. continues to lead the way in innovative HVAC solutions, and the G24M Series exemplifies their commitment to excellence in the field.
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