Lennox International Inc TUA75S, TUA45S White Rodgers 36E GAS Valve, Robertshaw 2000DER GAS Valve

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Gas Valve Operation for White Rodgers 36E Series Valve (Figure 12)

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

2- Set thermostat to lowest setting.

3- Turn off all electrical power to appliance.

4- This appliance is equipped with an ignition device which automatically lights burner. DO NOT attempt

to light the burners manually.

WHITE RODGERS 36E GAS VALVE

 

MANIFOLD PRESSURE

 

ADJUSTMENT SCREW

NO

 

OFF

MANI-

 

 

FOLD

INLET

PRESSURE

PRESSURE

TAP

TAP

GAS VALVE KNOB

SHOWN IN OFF POSITION

 

 

FIGURE 12

5- Turn knob on gas valve 180° either way to OFF.

6- Wait five 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.

7- Turn knob on gas valve 180° either way to ON.

8- Close unit door.

9- Turn on electrical power to unit.

10-Set thermostat to desired setting.

11- The combustion air blower will start. The burners will light within 40 seconds.

12-If unit does not light first time (gas line not fully purged) it will attempt up to two more ignitions before locking out.

13-If lockout occurs, repeat steps 1 through 10.

14-If appliance still will not operate, follow the instructions “To Turn Off Gas to Unit" and call your service technician or gas supplier.

Gas Valve Operation for Robertshaw 2000DER Series Valve (Figure 13)

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

2- Set the thermostat to lowest setting.

3- Turn off all electrical power to appliance.

4- This appliance is equipped with an ignition device which automatically lights burner. DO NOT

attempt to light the burners manually.

ROBERTSHAW 2000DER GAS VALVE

GAS VALVE KNOB

MANIFOLD

SHOWN IN OFF POSITION

PRESSURE TAP

 

OFF

 

INLET

MANIFOLD PRESSURE

 

PRESSURE

ADJUSTMENT SCREW

 

TAP

UNDER CAP

 

FIGURE 13

5- Depress knob on gas valve; knob will snap to OFF.

6- Wait five 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.

7- Turn knob on gas valve 90° counterclockwise to ON.

8- Close unit door.

9- Turn on electrical power to unit.

10-Set the thermostat to desired setting.

11-The combustion air blower will start. The burners will light within 40 seconds.

12-If unit does not light first time (gas line not fully purged) it will attempt up to two more ignitions before locking out.

13-If lockout occurs, repeat steps 1 through 10.

14-If appliance still will not operate, follow the instructions “To Turn Off Gas to Unit" and call your service technician or gas supplier.

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Contents Table Of Contents TUA*SN,LA,SF45, 60, and 75 Unit Dimensions 125 Unit Dimensions Unit ClearancesRequirements CSA in the USA ShippingRequirements CSA in Canada Unit Heater Installation Combustion and Ventilation AirVenting and Combustion Air Inlet Horizontal Venting General Vent and AIR Intake Termination on Single Wall VentHorizontal 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 Kit Residential Horizontal Venting Concentric Vent InstallationRemoval Of Unit From Common Vent Line Voltage Field Wiring Electrical ConnectionsLeak Check Gas ConnectionGAS 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 ControlLP/PROPANE GAS Manifold Pressures in.wg. kPa Gas FlowGas 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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