Lennox International Inc TUA45S, TUA125S Vent and AIR Intake Termination on Single Wall Vent

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VENT AND AIR INTAKE TERMINATION ON SINGLE WALL VENT

SINGLE WALL TERMINATION

ROOF FLASHING

DOUBLE WALL (TYPE B-1) TERMINATION

ROOF FLASHING

ROOF PITCHED

FROM 0" TO 45"

SHALL NOT BE A CONCEALED SPACE

2" CLEARANCE

THIMBLE

ROOF PITCHED

 

FROM 0" TO 45"

 

12" MAX

CLEARANCE TO BE

 

 

AS SPECIFIED ON

 

TYPE “B" VENT PIPE.

SEAL JOINT BETWEEN SINGLE WALL VENT AND “B" VENT AND THE ANNULAR SPACE OF THE “B" VENT.

FIGURE 2

C-Horizontal Venting - General

Common venting is not allowed with horizontal vent.

The minimum horizontal vent length is three feet (914mm). 1- If possible, do not terminate the horizontal vent through a wall that is exposed to prevailing wind. Exposure to excessive winds can affect unit performance. If such a termination is necessary, use a wind block to protect the vent termination from direct

winds.

2- Vent termination must be free from obstructions and at least 12" (306mm) above grade level and maximum snow height.

3- Do not terminate vent directly below roof eaves or above a walkway, or any other area where condensate dripping may be troublesome and may cause some staining. Avoid windows where steam may cause fogging or ice buildup.

4- When horizontally vented, minimum clearance for termination from any door, window, gravity air inlet, gas or electric meter, regulators, and relief equipment is 4 ft. (1.2m) for U.S. installations. Refer to NFPA 54/ANSI Z223.1 in the U.S.A. and CSA B149.1 and .2 in Canada or with authorities having local jurisdiction. In Canada, vent termination must have a minimum 6 ft. (1.8mm) horizontal clearance from gas and electric meters and relief devices as specified in the Canadian B149.1, Natural Gas Installation Code.

5- Vent termination must be a minimum of 4' (1.2m) below or 4’ (1.2m) horizontally from any soffit vent or under-eave vent.

6- Vent must be a minimum of 6' from an inside corner formed by two exterior walls. If possible, leave a 10' clearance.

7- Vent termination must be a minimum of 10' (3m) from any forced air inlet (includes fresh air inlet for other appliances, such as a dryer).

8- When termination is routed through an exterior combustible wall the vent must be supported using a listed clearance thimble. Where local authorities permit, a single section of type B-1 vent pipe may be

used as an alternative to the thimble. When using a type B-1 vent termination use the clearances specified by the vent manufacturer. Seal the connection between the single wall and double wall pipes and the annular space of the double wall pipe as shown in figure 2. Inside edge of vent termination tee or Belmont cap must be at least 12 inches from outside wall as shown in figure 3.

9- All horizontal vents must terminate with a tee or with a cap as specified in table 4. Opening end of tee used for termination must face downward. Addition of ¼” (6mm) mesh corrosion resistant material as a bird screen in the tee or cap openings may be used.

9- For horizontal venting, the vent pipe shall be supported with hangers no more than 3ft. (1m) apart to prevent movement after installation.

10-Clearance to combustible material is 6" (152mm) for single wall vent material except where a listed clearance thimble is used. Clearance to combustible material for type B-1 vent or factory-built chimney is per manufacturer’s instructions. Clearance to combustible material is 1” at the sides, 1” below, and 3” above on horizontal installations of the concentric vent/adapter/cap kit

D-Horizontal Venting-Commercial

1- Horizontal commercial installations are for buildings that are not attached to living spaces. The vent may be single wall vent material installed according to

the sections Venting A-General Recommendations and Requirements and C- Horizontal Venting - General and D-Horizontal Venting - Commercial. Refer to figures 3, 4, and 5. The air inlet may be single wall vent material or U.L. listed single wall flex connector.

2- Refer to table 2 for maximum vent lengths. The vent pipe diameter for horizontal commercial installations shall be 3” (76mm) on 45 units, 4” (100mm) on 60/75 units, 5” (127mm)on 100/125 units.

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Contents TUA*SN,LA,SF Table Of Contents45, 60, and 75 Unit Dimensions Unit Clearances 125 Unit DimensionsRequirements CSA in the USA ShippingRequirements CSA in Canada Combustion and Ventilation Air Unit Heater InstallationVenting and Combustion Air Inlet Horizontal Venting General Vent and AIR Intake Termination on Single Wall VentHorizontal Venting-Commercial Recommendations and Requirements. In areas Condensate Drain Through TEE Pipe and Drain LoopGeneral Recommendations RequirementsCondensate Drain Through Vent Termination Vertical Vent Requirements Horizontal Venting Residential InstallationHorizontal Vent Requirements Horizontal Venting-Residential Two PipesHorizontal Venting Concentric Kit Residential Horizontal Venting Concentric Vent InstallationRemoval Of Unit From Common Vent Electrical Connections Line Voltage Field WiringLeak Check Gas ConnectionGAS Supply to Unit Heater GAS Supply Connection Operation for Honeywell VR8205 Series Gas Valve Figure Unit Start-UpAttempt to light the burners manually White Rodgers 36E GAS ValveRobertshaw 2000DER GAS Valve To light the burners manuallyOptional Gas Conversion Kit To Turn Off Gas To UnitHeating Sequence of Operation Ignition Control LEDLimit Control Louver Vane AdjustmentCombustion Air Inducer Proving Switch Flame Rollout SwitchLP/PROPANE GAS Manifold Pressures in.wg. kPa Gas FlowGas Flow Rate Ft.3/Hr Combustion Air Blower Repair PartsBurners Flue Passageway and Flue BoxTUA45/60/75/100/125SN,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.
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