To Turn Off Gas To Unit

1 - Set thermostat to lowest setting.

2- Turn off all electrical power to unit if service is to be per- formed.

3- Remove burner compartment access panel.

4- Honeywell VR8205 Gas Valves - Turn knob on gas valve

clockwise to OFF. Do not force.

Robertshaw 7200 Gas Valve - Push in gas control le- ver, move to OFF, and release.

5 - Replace access panel.

Filters

Filters are not supplied. Inspect the filters once a month and replace or clean them as necessary. DO NOT replace a permanent-type filter with a disposable filter.

Unit is equipped with an internal filter clip which is located in indoor coil compartment attached to side of the unit drain

pan.81,77),/7(5$%/(￿6,=(6

GCS26 UNIT MODEL

FILTER SIZE

 

 

 

 

-024, -030, -036

24 in. X 25 in.

 

 

-042

28 in. X 25 in.

 

 

-048, -060

30 in. X 30 in.

 

 

Maintenance

Normal Maintenance

Periodic inspection and maintenance normally consists of changing or cleaning filters and (under some conditions) cleaning the main burners.

WARNING

Disconnect power before servicing unit.

NOTE - Care should be used when cleaning the coil so that the coil fins are not damaged.

Do not permit overhanging structures or shrubs to block the hot condenser air discharge.

Heating System Inspection

The owner is responsible for ensuring that a qualified ser- vice technician inspects the entire heating portion of the unit annually. This inspection should include the burner, the heat exchanger, and flue for any corrosion or soot accu- mulation. If any corrosion or soot accumulation is found, the burner, the heat exchangers, and the flue may have to be cleaned. The technician should also check the burner and controls for proper operation.

Vent Outlet

Visually inspect vent outlet periodically to prevent excessive buildup of soot and dirt. If necessary, clean the vent outlet to maintain unobstructed discharge of the flue products.

Burner Flame

The burner flame is not adjustable; however, the flame should be inspected at the beginning of each heating sea- son and burners should be cleaned, if necessary. Burner flame should be blue when burning natural gas.

Venting System Inspection

Annually (before heating season) inspect furnace venting system, vent cap, heat exchanger and burners for corro- sion, deterioration, or deposits of debris. Remove any ob- structions.

Contact your Lennox dealer for a periodic unit inspection by a qualified service technician.

Rollout Safety Switch

Your gas/electric unit is equipped with a roll-out safety switch which shuts off the gas supply to the furnace in case the heat exchanger becomes blocked. If the heating section of the unit fails to operate due to the functioning of this safety switch, DO NOT attempt to place the unit into operation. Contact6(59,&(a qualified5(0,1'(5service technician.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, person- al injury or loss of life. Installation and service must be performed by a qualified installer, service agency or the gas supplier.

Call your service technician if unit is inoperative. Before calling, always check the following to be sure service is re- quired.

1 - Check that electrical disconnect switches are ON.

2 - Check room thermostat for proper setting.

Motors

3 -

Replace any blown fuses or reset circuit breakers.

Indoor, outdoor fan and vent motors are permanently

4 -

Gas valve should be ON.

lubricated and require no maintenance.

5 -

Air filter should not be plugged limiting air flow.

Outdoor Coil

6 -

Is gas turned on at meter?

Dirt and debris should not be allowed to accumulate on the

outdoor coil surface or other parts in the air circuit. Clean the

7 -

Is manual main shut-off valve open?

coild when necessary. Use a brush, vacuum cleaner attach-

To keep your Lennox gas heating system in peak operating

ment, or other suitable means. If water is used to clean the

condition year after year, contact your independent Lennox

coil, be sure the power to unit is shut off prior to cleaning. 3DJH￿dealer about a planned service program.

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Lennox International Inc 10GCS, 12GCS manual Filters, Maintenance
Page 3 Page 4

12GCS, 10GCS specifications

Lennox International Inc is a prominent player in the HVAC industry, known for its innovative heating, ventilation, and air conditioning systems. Among its notable products are the 12GCS and 10GCS split-system air conditioners, designed to meet diverse residential and commercial needs while prioritizing efficiency and reliability.

The 12GCS model is recognized for its robust efficiency ratings, often achieving up to 16 SEER (Seasonal Energy Efficiency Ratio). This performance translates to significant energy savings, reducing utility bills while minimizing environmental impact. The 10GCS, while slightly lower in efficiency, still offers a commendable SEER rating, making it suitable for those seeking dependable climate control on a tighter budget.

Both models incorporate advanced technologies that enhance performance and user experience. The units are equipped with variable-speed scroll compressors, allowing for precise temperature control and quieter operation compared to traditional single-stage compressors. This technology ensures that the units can adjust their cooling output based on the indoor temperature demands, leading to improved comfort and energy savings.

Another key feature of the 12GCS and 10GCS is their compatibility with Lennox's Smart Wi-Fi Thermostat, enabling homeowners to manage their system remotely via a smartphone app. This connectivity allows for real-time monitoring and control, helping users optimize their air conditioning usage while maintaining comfort levels.

The construction of both the 12GCS and 10GCS units emphasizes durability and longevity. The cabinets are galvanized steel, providing resistance against rust and corrosion, while the units' design facilitates easy maintenance. Features such as a removable top grille and easy-access panels ensure that routine maintenance tasks, such as filter replacement, can be performed with minimal hassle.

In terms of environmental considerations, Lennox has integrated eco-friendly refrigerants in these models, further enhancing their sustainability profile. This commitment to energy efficiency and reduced greenhouse gas emissions aligns with the growing demand for environmentally responsible HVAC solutions.

In conclusion, Lennox International Inc's 12GCS and 10GCS air conditioning systems stand out for their energy efficiency, advanced technologies, and durable construction. These features make them ideal choices for consumers seeking reliable, effective, and environmentally responsible cooling solutions for their homes and businesses.
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