Lennox International Inc TUA125S, TUA45S, TUA100S Horizontal Venting Concentric Vent Installation

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G-Horizontal Venting Concentric Kit - Residential

1-For horizontal residential installations the 45/60/75 units are certified as Category I appliances with a concentric vent/adapter/cap kit. The only concentric vent/adapter/cap kits that may be used are the kits supplied by Advanced Distributor Products. The vent used to connect from the concentric adapter to the unit may be single wall material minimum 25 GSG (0.46mm) galvanized steel or equivalent grade stainless steel installed according to the sections

Venting A - General Recommendations and Requirements and C - Horizontal Venting General

and G - Horizontal Venting Concentric Kit - Residential. Refer to figure 7. The air inlet may be single wall material or U.L. listed single wall flex vent connector.

2-The vent pipe diameter for horizontal residential installations shall be 4” (100mm) on 45/60/75 units. Refer to table 4.

3-The maximum vent length is 5’ (1.5m) plus one 90- degree elbow.

4-The vent must maintain a ¼” rise per foot of slope upwards toward the termination.

HORIZONTAL VENTING – CONCENTRIC VENT INSTALLATION

VENT AND AIR INLET CONNECTORS FROM UNIT TO CONCENTRIC ADAPTER MAY BE SINGLE WALL (26 GSG) GALV. OR EQUIVALENT STAINLESS STEEL SEALED ACCORDING TO THESE INSTALLATION INSTRUCTIONS. SLOPE VENT + 1/4 INCH FOR 1 FOOT RUN MINIMUM. AIR INLET MAY ALSO BE U.L. LISTED SINGLE WALL FLEX VENT CONNECTOR.

VENT TERMINATION

AND AIR INLET

TERMINATION

12” (30.5 CM) MINIMUM ABOVE HIGHEST SNOWFALL

GROUND LEVEL

LISTED THIMBLE

THROUGH

COMBUSTIBLE WALL

NOTE - MINIMUM HORIZONTAL LENGTH 3 FT. (91.4 CM) NOT INCLUDING TERMINATION.

COMMON VENTING NOT ALLOWED WHEN HORIZONTALLY VENTING THE UNIT HEATER.

FIGURE 7

H-Removal Of Unit From Common Vent

In the event that an existing unit heater is removed from a venting system commonly run with separate gas appliances, the venting system is likely to be too large to properly vent the remaining attached appliances. The following test should be conducted while each appliance is in operation and the other appliances are not in operation, yet remain connected to the common venting system. If the venting system has been installed improperly, the system must be corrected.

1- Seal any unused openings in the common venting system.

2- Visually inspect the venting system for proper size and horizontal pitch. Determine there is no blockage or restriction, leakage, corrosion, or other deficiencies which could cause an unsafe condition.

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3- In so far as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliances not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

4- Follow the lighting instructions. Place the appliance being inspected in operation. Adjust thermostat so appliance will operate continuously.

5- Test for spillage at the draft hood relief opening after five minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar, or pipe.

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Contents Table Of Contents TUA*SN,LA,SF45, 60, and 75 Unit Dimensions 125 Unit Dimensions Unit ClearancesShipping Requirements CSA in the USARequirements CSA in Canada Unit Heater Installation Combustion and Ventilation AirVenting and Combustion Air Inlet Vent and AIR Intake Termination on Single Wall Vent Horizontal Venting GeneralHorizontal Venting-Commercial Condensate Drain Through TEE Pipe and Drain Loop GeneralRecommendations Requirements Recommendations and Requirements. In areasCondensate Drain Through Vent Termination Horizontal Venting Residential Installation Vertical Vent RequirementsHorizontal Venting-Residential Two Pipes Horizontal Vent RequirementsHorizontal Venting Concentric Vent Installation Horizontal Venting Concentric Kit ResidentialRemoval Of Unit From Common Vent Line Voltage Field Wiring Electrical ConnectionsGas Connection Leak CheckGAS Supply to Unit Heater GAS Supply Connection Unit Start-Up Operation for Honeywell VR8205 Series Gas Valve FigureWhite Rodgers 36E GAS Valve Robertshaw 2000DER GAS ValveTo light the burners manually Attempt to light the burners manuallyTo Turn Off Gas To Unit Heating Sequence of OperationIgnition Control LED Optional Gas Conversion KitLouver Vane Adjustment Combustion Air Inducer Proving SwitchFlame Rollout Switch Limit ControlGas Flow LP/PROPANE GAS Manifold Pressures in.wg. kPaGas Flow Rate Ft.3/Hr Repair Parts BurnersFlue 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.
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