Lennox International Inc TUA60S, TUA125S, TUA45S, TUA100S, TUA75S TUA45/60/75/100/125SN,LA,SF

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MAXIMUM LOAD NOT TO

EXCEED 20 VA AT 24 V CLASS 2.

(2)S47 USED ON 60 & 75 MODELS ONLY.

DISCONNECT ALL POWER

BEFORE SERVICING.

FOR PROPER GROUNDING REFER TO LOCAL CODES.

BLUE

 

BROWN

 

RED

 

ORANGE

 

BLUE

YELLOW

YELLOW

 

 

BLUE

 

GREEN/YELLOW

 

 

 

 

 

 

 

 

 

 

DESCRIPTION

 

 

 

 

KEY

COMPONENT

 

 

 

 

A3

CONTROL, BURNER, IGNITION

 

 

 

 

B3

MOTOR, BLOWER

 

 

 

 

B6

MOTOR, COMBUSTION AIR BLOWER

 

 

 

 

GV1

VALVE, GAS

 

 

 

 

S10

LIMIT, PRIMARY GAS

 

 

 

 

S18

SWITCH, COMB. AIR INDUCER PROVE

 

 

 

 

(1)S47

SWITCH, FLAME ROLLOUT 1

 

 

 

 

(2)S47

SWITCH, FLAME ROLLOUT 2

 

 

 

 

 

 

 

 

S43

SWITCH, LOW GAS PRESSURE

 

 

 

 

T1

TRANSFORMER, CONTROL

 

 

 

 

DS

SWITCH, DOOR

 

 

 

 

 

 

 

WIRING DIAGRAM

6/03

 

 

HEATING UNITS ˘ GAS GCI−3A

TUA45/60/75/100/125S(N,L(A,S)F

Supersedes Form No.

New Form No.

 

065329500

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Contents TUA*SN,LA,SF Table Of Contents45, 60, and 75 Unit Dimensions Unit Clearances 125 Unit DimensionsShipping Requirements CSA in the USARequirements CSA in Canada Combustion and Ventilation Air Unit Heater InstallationVenting and Combustion Air Inlet Vent and AIR Intake Termination on Single Wall Vent Horizontal Venting GeneralHorizontal Venting-Commercial General Condensate Drain Through TEE Pipe and Drain LoopRecommendations Requirements Recommendations and Requirements. In areasCondensate Drain Through Vent Termination Vertical Vent Requirements Horizontal Venting Residential InstallationHorizontal Vent Requirements Horizontal Venting-Residential Two PipesHorizontal Venting Concentric Vent Installation Horizontal Venting Concentric Kit ResidentialRemoval Of Unit From Common Vent Electrical Connections Line Voltage Field WiringGas Connection Leak CheckGAS Supply to Unit Heater GAS Supply Connection Operation for Honeywell VR8205 Series Gas Valve Figure Unit Start-UpRobertshaw 2000DER GAS Valve White Rodgers 36E GAS ValveTo light the burners manually Attempt to light the burners manuallyHeating Sequence of Operation To Turn Off Gas To UnitIgnition Control LED Optional Gas Conversion KitCombustion Air Inducer Proving Switch Louver Vane AdjustmentFlame Rollout Switch Limit ControlGas Flow LP/PROPANE GAS Manifold Pressures in.wg. kPaGas Flow Rate Ft.3/Hr Burners Repair PartsFlue Passageway and Flue Box Combustion Air BlowerTUA45/60/75/100/125SN,LA,SF

TUA45S, T-CLASS TM SEPARATED COMBUSTION UNIT HEATERS, TUA75S, TUA100S, TUA60S specifications

Lennox International Inc. stands out as a leader in the heating and cooling industry, and its T-Class™ Separated Combustion Unit Heaters, including models such as TUA60S, TUA100S, TUA125S, and TUA45S, epitomize innovation and efficiency. These unit heaters are engineered to provide reliable warmth in commercial and industrial environments, ensuring comfort and productivity even in the coldest conditions.

One of the most significant features of the T-Class™ heaters is their separated combustion design. This technology allows the heater to draw air for combustion from outside the building, which means that interior air remains untouched and is not used for heating. This design not only improves indoor air quality but also enhances energy efficiency by minimizing heat loss.

The TUA60S, with a heating capacity of 60,000 BTUs, is ideal for smaller spaces, while the TUA100S provides a robust 100,000 BTUs, making it suitable for medium-sized areas. For larger installations, the TUA125S delivers a powerful 125,000 BTUs, ensuring even the most expansive environments remain comfortably warm. Lastly, the TUA45S is perfect for smaller facilities or specific zones requiring efficient heating solutions.

These heaters are equipped with advanced technology such as modulating burners that adjust the heat output based on the current temperature needs, leading to energy savings and reduced operational costs. The T-Class™ units are designed with reliable components, ensuring longevity and reducing maintenance requirements. Additionally, the exterior reflects a modern and durable finish, ensuring they withstand the rigors of industrial settings.

Installation is straightforward thanks to their flexible configurations, allowing for both vertical and horizontal venting options. This adaptability makes them suitable for various applications, from warehouses to manufacturing plants.

In terms of safety, Lennox emphasizes top-tier mechanisms, including built-in safety limits and high-temperature shutoff features to prevent overheating. Furthermore, their models are compliant with industry regulations, reflecting Lennox International's commitment to safety and environmental stewardship.

In conclusion, Lennox International Inc.’s T-Class™ Separated Combustion Unit Heaters, including the TUA60S, TUA100S, TUA125S, and TUA45S, offer a blend of efficiency, reliability, and advanced technology. These heaters are suitable for a variety of commercial and industrial applications, ensuring optimal comfort while prioritizing safety and energy savings.