Thomas & Betts LDAP 1200 warranty Heat Section Venter Motor and Wheel cont’d, Fan Blades, Guards

Page 36

33.Heat Section Venter Motor and Wheel (cont’d)

Replacement Instructions

1.Turn off the gas and disconnect the electric power.

2.Open the burner/control compartment access panel.

3.Disconnect the three venter motor wires at the DSI control, capacitor wires at the capacitor, and ground screw (located on the control panel).

4.Holding the venter motor, remove the six screws that attach the venter motor mounting plate to the venter housing. Remove the motor and wheel assembly from the heater.

FIGURE 26 - Venter Wheel Position on Shaft - applies to all heat section venter assemblies

7/16” (11mm) inside

5.Re-assemble with the replacement venter motor and wheel assembly. See FIGURE 26.

6.Follow the wiring diagram to connect the venter wires.

7.Replace the access panel. Restore power to the heater and turn on the gas. Light, following the instructions on the lighting instruction plate. Check for proper opera- tion.

34. Main Venter Motor and Wheel (Models 800 and 1200 only)

Venter Motor

The main venter motor and wheel is located on the top of the first heat section of a Model LDAP 800 and 1200. The vent system attaches to the collar on the top of the main venter housing.

Remove dirt and grease from the motor casing, the venter housing, and the venter wheel. Venter motor bearings are permanently lubricated.

Follow the instructions in Paragraph 33 for replacement of the venter motor and wheel assembly. Keep all hardware removed to be used in re-assembling and installing the replacement parts. See FIGURE 27 for venter wheel and motor spacing.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1-1/4” (32mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wheel

 

 

Motor Wire

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Main Combustion

 

 

 

 

 

 

 

and Cable Assy

 

 

 

 

 

 

 

 

 

 

 

 

Air Pressure

 

 

 

 

Main Venter

 

 

 

 

 

Venter Housing

Switch

 

 

 

 

 

 

 

Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screw

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIGURE 27- Venter Motor

 

 

 

 

 

 

 

 

Flat Washer

 

 

 

 

 

 

 

 

 

and Wheel Spacing on

 

 

 

 

 

 

 

 

 

 

Hex Nut

Main Venter (Size 800 and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1200)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exhauster Motor Base Assy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35. Fan Motor(s),

 

 

Remove dirt and grease from each motor, fan guard, and blades. Use care when

 

 

 

 

Fan Blades,

cleaning the fan blades to prevent causing misalignment or imbalance. Check that the

 

 

 

 

hub of the fan blades is secure to the shaft.

 

 

 

 

 

and Guard(s)

Follow these instructions for replacement of the fan guard, fan motor and/or fan blades.

FIGURE 28- Fan Blade

 

 

Repeat the procedure for each heater section.

 

 

 

1. If the heater is installed, turn off the gas and disconnect the electric power.

Position on the Shaft

 

 

 

 

2. Open the access door and disconnect the fan motor wires, capacitor wires at the

 

 

 

 

 

 

 

3”

 

 

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

capacitor, and ground screw.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blade

(76mm)

 

 

 

 

3. Remove the assembled parts (the fan guard, the motor and the fan blade).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan

 

 

4. Disassemble and replace whatever parts are needed and reassemble using

 

 

 

 

 

 

 

 

 

 

 

Motor

whatever part(s) are being replaced and the original parts.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Be sure the fan blade is in the proper position on the shaft; refer to the illustration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in FIGURE 28.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Position the assembly on the heater. Attach the fan guard.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rotate the fan blade to check for adequate clearance. If adjustment is required,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

loosen the mounting screws, re-position the fan guard, and tighten the screws.

Form RZ-NA-I-LDAP, P/N 207733 (Rev 2), Page 36

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Contents Table of Contents Reznor Model LdapGeneral Installation Codes WarrantyHazard Levels of Warnings in this Manual Switches Uncrating and Preparation High Altitude OperationTechnical Data DimensionsModel One DownflowModel LDAP800 and Model LDAP1200 Clearances Combustion AirClearances inches/mm Heater Location Mounting Height Heater Throw All ModelsThrow feet and meters Hanging or Mounting the Heater and Installing Louvers Heater Location cont’dSound Data Location RecommendationsWall Mounting Guidelines for Wall Mounting Model Ldap HeatersInstalling Heater and Louvers cont’d Installing LouversGas Piping and Pressures Sizing Gas SupplyValve Outlet or Orifice Pressure Setting Gas Connection SizeHorizontal Supply Vertical SupplyGas PressuresCont’d Supply Wiring Burners Electrical Supply ConnectionsDisconnect Switch Electrical Supply and Connections cont’dThermostat and Connections CL7 Thermostat and Connections cont’d Multiple Heater Control Option CL31 and Option CL32Connections for Model Ldap 1200 with Option CL1, CL2, CL3, CL7, or CL18Combustion Air Proving Pressure Switches Pressure Switch SettingsLimit Control High Limit ControlIgnition System Normal Heat Cycle Operating Sequence Abnormal Heat Cycle FunctionsIgnition System cont’d Fault Modes Lockout Fan Motor WiringGas Valves Fan MotorsWiring Diagrams Wiring DiagramWhite = Neutral Black = High Heat Speed Wiring Diagrams cont’d Above control wiring isAbove control wiring is Line VoltageVenting Venting RequirementsType of Vent Pipe VerticalJoints and Sealing Venting cont’d Venting Requirements cont’dJoints and Sealing cont’d Double Vent Wall Pipe With Sealant Pipe RunWall Ft 1M Minimum 305 mm Check Installation and Startup Check the installation prior to startup Heater StartupOperating Instructions Operating Sequence Check installation after startup Vent System Testing ProcedureMaintenance Schedule DimensionsWay Discharge Louvers, Option CD32 Nozzles NozzleHeat Exchanger Maintenance Burner Maintenance Location of ControlsBurner Maintenance cont’d Inspect and Clean the BurnerRe-Install the Burner Instructions to Re-Install the Burner Refer to FigureBurner Orifices Heat Section Venter Motor and WheelIgnitor Flame Sensor MeasurementHeat Section Venter Motor and Wheel cont’d Main Venter Motor and Wheel Models 800 and 1200 onlyFan Blades GuardsCombustion Air Pressure Switches Operating Gas ValvesTroubleshooting Vent SystemGeneral Troubleshooting Problem Probablecause RemedyGeneral Troubleshooting cont’d No heat Heater

LDAP 1200 specifications

The Thomas & Betts LDAP 1200 is a cutting-edge lighting control system designed specifically to enhance energy efficiency, reduce operational costs, and promote flexibility in various lighting applications. Ideal for commercial and industrial environments, the LDAP 1200 integrates advanced technologies to create a robust solution for managing lighting systems.

One of the standout features of the LDAP 1200 is its intelligent control capabilities. With occupancy sensors and daylight harvesting technology, the system can automatically adjust lighting levels based on the presence of people and the amount of natural light available. This results not only in energy savings but also in improved occupant comfort.

The LDAP 1200 is designed for easy installation and configuration. Its modular design allows for scalability, making it suitable for both small spaces and large commercial projects. The system supports a variety of lighting types, including LED, fluorescent, and incandescent, ensuring compatibility with existing infrastructure.

User-friendly interfaces are another key characteristic of the LDAP 1200. Operating through a centralized control panel or a mobile app, users can easily monitor and adjust lighting settings, schedule operations, and receive real-time feedback. This level of control empowers facility managers to respond quickly to changing needs and optimize lighting performance.

In terms of energy management, the LDAP 1200 integrates seamlessly with building management systems (BMS), enabling complex scheduling and reporting functions. The system collects data on energy usage, helping organizations to track performance and implement strategies to further reduce consumption.

Durability and reliability are paramount in industrial applications, and the LDAP 1200 does not disappoint. Constructed with high-quality materials, the system is designed to withstand everyday wear and tear. Its robust architecture ensures that it will function effectively in various environmental conditions.

In summary, the Thomas & Betts LDAP 1200 is a versatile and efficient lighting control solution that plays a critical role in enhancing energy efficiency, reducing costs, and improving user experience. With its intelligent control features, user-friendly interfaces, and compatibility with various lighting types, the LDAP 1200 represents a significant advancement in lighting technology, making it a smart choice for modern facilities seeking to optimize their lighting systems.
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