Thomas & Betts LDAP 1200 warranty Valve Outlet or Orifice Pressure Setting, Gas Connection Size

Page 11

Gas Connection Size

Gas Connection - inches/mm

Size

Natural

Propane

Gas

Gas

 

 

400

inches

1

1

mm

25.4

25.4

 

800

inches

1-1/4

1-1/4

mm

31.8

31.8

 

1200

inches

1-1/4

1-1/4

mm

31.8

31.8

 

FIGURE 7 - Gas connection is at the pipe nipple that extends outside the cabinet.

IMPORTANT: Two pipe wrenches are required when installing gas piping. The gas pipe that is supplied with the heater MUST be held with a pipe wrench to prevent damage to the heater.

NOTE: Gas Conversion Kits are available for changing from propane gas to natural gas or natural gas to propane gas. A factory-authorized conversion kit MUST be used.

Valve Outlet or Orifice Pressure Setting

WARNING: Valve outlet gas pressure must never exceed 3.5" w.c. for natural gas and 10" w.c. for propane gas.

All piping must be in accordance with requirements outlined in the National Fuel Gas Code ANSI/Z223.1a (latest edition) or CSA-B149.1 and B149.2 (See Paragraph 2). Gas supply piping installation should conform with good practice and with local codes. Support gas piping with pipe hangers, metal strapping, or other suitable mate- rial; do not rely on the heater to support the gas pipe.

The heater is orificed for operation with natural gas having a heating value of 1000 (± 50) BTUH per cubic ft or propane gas with a heating value of 2500 (± 100) BTUH per cubic ft. If the gas at the installation does not meet these specifications, consult the factory for proper orificing.

Pipe joint compounds (pipe dope) shall be resistant to the action of liquefied petro- leum gas or any other chemical constituents of the gas being supplied.

Install a ground joint union and manual shutoff valve upstream of the heater control system, as shown in FIGURE 7. Installation of a trap with a minimum 3" (76mm) drip leg is required.

To connect the gas, the heater is equipped with a nipple that extends outside the cabinet.

Leak-test all connections by brushing on a leak-detecting solution.

 

Ground

 

To Gas Valve

Joint Union

Manual shutoff

 

(inside the

 

Horizontal Supply

cabinet)

 

 

Drip

From Gas Supply

 

Leg

(horizontal or vertical)

Pipe nipple extending

Vertical Supply

outside the cabinet.

Manual

 

 

shutoff

To Gas Valve (inside the cabinet)

Ground Drip

Joint Leg

Union

Measuring valve outlet gas pressure cannot be done until the heater is in operation. It is included in the steps of the "Check-Test-Start" procedure in Paragraph 25. The following warnings and instructions apply. Model LDAP 400 has one gas valve; Model LDAP 800 has two gas valves; and Model LDAP 1200 has three gas valves.

For Natural Gas: When the heater leaves the factory, the combination gas valve(s) is set so that the valve outlet gas pressure for a single stage valve or high fire of a two stage valve is regulated to 3.5" w.c. Low fire on a two-stage valve (Size 400 only) is set to 1.8” w.c. Inlet supply pressure to the heater for natural gas must be a minimum of 5" w.c. or as noted on the rating plate and a maximum of 14" w.c.

For Propane Gas: When the heater leaves the factory, the combination gas valve(s) is set so that the valve outlet gas pressure for a single stage valve or high fire of a two stage valve is regulated to 10" w.c. Low fire on a two-stage valve (Size 400 only) is set to 5.0” w.c. Inlet supply pressure to the heater for propane gas must be a mini- mum of 11" w.c. and a maximum of 14" w.c.

Before attempting to measure or adjust valve outlet gas pressure, the inlet supply pressure must be within the specified range both when the heater is in opera- tion and on standby. Incorrect inlet pressure could cause excessive valve outlet gas pressure immediately or at some future time. If natural gas supply pressure is too high, install a regulator in the supply line before it reaches the heater. If natural gas supply pressure is too low, contact your gas supplier.

Form RZ-NA-I-LDAP, P/N 207733 (Rev 2), Page 11

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Contents Reznor Model Ldap Table of ContentsHazard Levels of Warnings in this Manual General Installation CodesWarranty Uncrating and Preparation High Altitude Operation SwitchesDownflow Technical DataDimensions Model OneModel LDAP800 and Model LDAP1200 Clearances inches/mm ClearancesCombustion Air Throw feet and meters Heater LocationMounting Height Heater Throw All Models Location Recommendations Hanging or Mounting the Heater and Installing LouversHeater Location cont’d Sound DataGuidelines for Wall Mounting Model Ldap Heaters Wall MountingSizing Gas Supply Installing Heater and Louvers cont’dInstalling Louvers Gas Piping and PressuresVertical Supply Valve Outlet or Orifice Pressure SettingGas Connection Size Horizontal SupplyCont’d GasPressures Burners Electrical Supply Connections Supply WiringThermostat and Connections Disconnect SwitchElectrical Supply and Connections cont’d CL7 CL1, CL2, CL3, CL7, or CL18 Thermostat and Connections cont’dMultiple Heater Control Option CL31 and Option CL32 Connections for Model Ldap 1200 with OptionHigh Limit Control Combustion Air Proving Pressure SwitchesPressure Switch Settings Limit ControlIgnition System Abnormal Heat Cycle Functions Normal Heat Cycle Operating SequenceIgnition System cont’d Fan Motors Fault Modes LockoutFan Motor Wiring Gas ValvesWiring Diagram Wiring DiagramsWhite = Neutral Black = High Heat Speed Above control wiring is Wiring Diagrams cont’dLine Voltage Above control wiring isVertical VentingVenting Requirements Type of Vent PipeJoints and Sealing Double Vent Wall Pipe With Sealant Pipe Run Venting cont’dVenting Requirements cont’d Joints and Sealing cont’dWall Ft 1M Minimum 305 mm Operating Instructions Operating Sequence Check Installation and StartupCheck the installation prior to startup Heater Startup Vent System Testing Procedure Check installation after startupNozzle Maintenance ScheduleDimensions Way Discharge Louvers, Option CD32 NozzlesLocation of Controls Heat Exchanger Maintenance Burner MaintenanceInstructions to Re-Install the Burner Refer to Figure Burner Maintenance cont’dInspect and Clean the Burner Re-Install the BurnerMeasurement Burner OrificesHeat Section Venter Motor and Wheel Ignitor Flame SensorGuards Heat Section Venter Motor and Wheel cont’dMain Venter Motor and Wheel Models 800 and 1200 only Fan BladesOperating Gas Valves Combustion Air Pressure SwitchesVent System TroubleshootingProblem Probablecause Remedy General TroubleshootingNo heat Heater General Troubleshooting cont’d

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.

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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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