Thomas & Betts LDAP 1200 warranty Ignition System

Page 18

18.High Limit Control (cont’d)

19.Adjustable Air Destrati- fication Fan Control

the Maintenance Section for information on probable causes . (For location, see FIG- URE 22, page 33.)

DANGER: If a manual reset high limit control activates, identify and correct the cause before resetting the switch. Never bypass the high limit control; hazardous conditions could result. See Hazard Intensity Levels, page 2.

An adjustable fan control is located on top of the first heat section. It is adjacent to the circulating air fan and motor and controls the fan motors in all heat sections. The purpose of the fan control is to energize the fan motor(s) when the ambient air tem- perature around the heater reaches the setting on the control. The fan motor(s) will be de-energized when the fan control is satisfied. The fan(s) re-circulates the heated air near the ceiling down to the floor level (destratification) and improves heat recovery. A call for heat by the thermostat overrides the air destratification fan control.

Set the adjustable fan control for the desired temperature setting for energizing the circulating air fan(s). The fan control setting should be set 5 to 10°F higher than the wall-mounted thermostat setting. The heater is factory wired to energize the fan(s) at medium speed when energized by the adjustable fan control. For lower mounting heights it may be desirable to operate the fan(s) at low speed. Switching the blue (medium speed) and red (low speed) fan motor wires on each heat section will change the fan motor(s) speed. Refer to the wiring diagram for the wire locations.

To manually override the fan control, the heater may be tuned off at the circuit breaker in the main electrical panel, or a field-installed electrical box with a SPST switch can be located near the wall thermostat with the switch wired in series with the fan con- trol.

The air destratification can also be a benefit in the summer time. Using the fan(s) in the summer time can improve working conditions by alleviating stagnant air condi- tions and creating a cooling effect for the occupants.

20.Ignition System

Each heat section in this heater is equipped with a direct spark integrated control module (circuit board). The module monitors the safety devices and controls the operation of the fan and venter motors and the gas valve between heat cycles.

FIGURE 13 – DSI

 

x

 

 

 

 

 

 

Integrated Control

Spark

 

 

 

Module (circuit

Transformer

Control Plug

 

 

board) in Each

 

Fuse

 

Heat Section

 

 

 

 

 

 

 

 

 

 

 

 

Thermostat

 

 

 

 

Connections

 

Supply

 

 

 

 

Voltage

 

 

 

Dip

Connections

 

 

Fan/Blower

Switch

 

 

 

 

 

 

Off

 

 

 

 

Delay

 

 

 

 

Status

LED

 

 

 

Lights

 

 

 

Lights

Form RZ-NA-I-LDAP, P/N 207733 (Rev 2), Page 18

 

 

 

 

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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 OperationModel One Technical DataDimensions DownflowModel LDAP800 and Model LDAP1200 Clearances Combustion AirClearances inches/mm Heater Location Mounting Height Heater Throw All ModelsThrow feet and meters Sound Data Hanging or Mounting the Heater and Installing LouversHeater Location cont’d Location RecommendationsWall Mounting Guidelines for Wall Mounting Model Ldap HeatersGas Piping and Pressures Installing Heater and Louvers cont’dInstalling Louvers Sizing Gas SupplyHorizontal Supply Valve Outlet or Orifice Pressure SettingGas Connection Size Vertical SupplyGas PressuresCont’d Supply Wiring Burners Electrical Supply ConnectionsDisconnect Switch Electrical Supply and Connections cont’dThermostat and Connections CL7 Connections for Model Ldap 1200 with Option Thermostat and Connections cont’dMultiple Heater Control Option CL31 and Option CL32 CL1, CL2, CL3, CL7, or CL18Limit Control Combustion Air Proving Pressure SwitchesPressure Switch Settings High Limit ControlIgnition System Normal Heat Cycle Operating Sequence Abnormal Heat Cycle FunctionsIgnition System cont’d Gas Valves Fault Modes LockoutFan Motor Wiring Fan MotorsWiring Diagrams Wiring DiagramWhite = Neutral Black = High Heat Speed Wiring Diagrams cont’d Above control wiring isAbove control wiring is Line VoltageType of Vent Pipe VentingVenting Requirements VerticalJoints and Sealing Joints and Sealing cont’d Venting cont’dVenting Requirements 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 ProcedureWay Discharge Louvers, Option CD32 Nozzles Maintenance ScheduleDimensions NozzleHeat Exchanger Maintenance Burner Maintenance Location of ControlsRe-Install the Burner Burner Maintenance cont’dInspect and Clean the Burner Instructions to Re-Install the Burner Refer to FigureIgnitor Flame Sensor Burner OrificesHeat Section Venter Motor and Wheel MeasurementFan Blades Heat Section Venter Motor and Wheel cont’dMain Venter Motor and Wheel Models 800 and 1200 only 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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