Thomas & Betts UDAP Recommended maximum hanger rod length is 6 feet 1.8M, Be sure Threaded swivel

Page 11

FIGURE 7A - Suspending the Heater with Rods from the Threaded Nut Retainers (either two or four point suspension)

WARNING: Unit must be level for proper operation. Do not place or add additional weight to the suspended heater. Hazard Levels, page 2.

FIGURE 7B - Swivel Connectors to Suspend the Heater from 1” Pipe, Option CK8 (2-pt) or CK10 (4-pt)

FIGURE 8 - Suspending the Heater using Option CK22, Ceiling Suspension Kit (no hanger rods)

FIGURE 9 - Model UDAS - Plug the unused suspension points on the control side of the heater with 3/8”-16 screws and flat washers

Be sure the threaded hanger rods are locked to the heater as illustrated.

3/8” threaded rod (field supplied)

Add a 3/8” nut and washer to lock the

hanger rod to the heater.

Recommended maximum hanger rod length is 6 feet (1.8M).

If ordered with swivel connectors for 1” pipe, Option CK8 or CK10, attach the swivels at the threaded nut retainers. Suspend with 1” pipe. (See FIGURE 7B.)

Be sure the

 

threaded swivel

Lock the swivel

connectors are

connector to

the heater.

locked to the

The connector

heater as

is threaded for

hanging from

illustrated.

a 1” pipe.

If ordered with a ceiling suspension kit, Option CK22, follow the illustrated in- structions in the kit. (See FIGURE 8.)

Available for Sizes 30-125. Allows the heater to be installed one inch from the ceiling.

NOR

Z

Model UDAS - Whether using the suspension points or the hanger kit, when in- stalling a Model UDAS, the unused suspension points on the control side of the heater MUST be plugged. Plug these holes with the 3/8”-16 bolts and flat wash- ers shipped in the bag with the heater. (See FIGURE 9.)

Plug any unused suspension points on the control side with the 3/8”-16 bolts and flat washers provided.

®

Control

Side

 

Model

UDAS

 

 

 

Form RZ-NA I-UDA, Mfg #195673 Rev 5, Page 11

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Contents Series Fan-Type Unit Heaters Table of ContentsVenting Manual by Model Installation CodesGeneral Hazard Levels of Warnings in this ManualMassachusetts Requirement Warranty Uncrating and PreparationSize DimensionsModel Udas Separated Combustion Fan Size 100 125 Technical DataClearances Instructions for Changing Pressure SwitchPressure Switch High Altitude OperationModel Udap and Model UDAP-CV Combustion Air applies to Model Udap and ModelLocation Recommendations Unit Heater LocationHeater Throw Model Udas Size 100 125 150 175 225 250 300 350 400 Unit Heater Location cont’dHanging the Heater Model Udap Size 100 125 150 175 225 250 300 350 400Locked to Connectors areRecommended maximum hanger rod length is 6 feet 1.8M Be sure Threaded swivelGas Connection Size Gas Piping and PressuresSizing Gas Supply Line Instructions Two -Stage Valve Manifold Pressure Settings by Altitude for CanadaGas Piping and Pressures cont’d Instructions for High Altitude DerateFeet Meters High Altitude Capacity ChangesThermostat and Connections Burner Electrical Supply and ConnectionsCombustion Air Proving Switch Pressure Switch Limit Control Pressure Switch SettingsCombustion Air Proving StatusLED Lights Door Switch Model Udas only Ignition SystemDip Switch Normal Heat Cycle Operating SequenceSW1 SW2 Time Ignition System cont’dContinuous Fan Operation Fault Modes Gas Valve Fan Motor Fault Modes cont’d LockoutOperating Sequence Wiring DiagramsWiring Diagrams cont’d SW1 Operating Instructions Operating Sequence Check Installation and StartupCheck the installation prior to startup Heater Startup Vent System Testing Procedure Model Udap Check installation after startupUse only factory-authorized parts Maintenance ScheduleStartup cont’d Burner Removal Instructions Refer to Figure Heat Exchanger Maintenance Burner MaintenanceBurner Orifice Burner Maintenance cont’dInspect and Clean the Burner Re-Install the Burner Instructions to Re-Install the Burner Refer to FigureDSI Fan Blades IgnitionSystem Cont’dUdas only Combustion Air Pressure SwitchDoor Switch Operating Gas ValveDisconnect Flame Rollout Switch Sizes 30-125 onlySwitch Air System TroubleshootingBurner will General TroubleshootingVenter motor Will not startCont’d Troubleshooting cont’d

UDAP, UDAS specifications

Thomas & Betts is a well-respected name in the electrical and industrial products sector, known for its innovation and quality. Among its impressive portfolio, the UDAS and UDAP series of connectors stand out for their reliable performance and advanced features. These connectors are specifically designed to meet the rigorous demands of electrical applications in various industries.

The UDAS (Universal Disconnect Appliance Switch) and UDAP (Universal Disconnect Appliance Plug) are engineered for high-capacity applications where safety, efficiency, and ease of use are paramount. One of the main features of these connectors is their ability to deliver increased electrical resistance and durability. They are constructed from high-quality materials that can withstand extreme environmental conditions, making them ideal for outdoor and harsh industrial applications.

Another key technology employed in the UDAS and UDAP series is the quick-connect mechanism. This innovative design allows users to connect and disconnect circuits swiftly without requiring excessive force or complex tools. This is particularly beneficial in settings where downtime must be minimized and efficiency is crucial. Additionally, the connectors are designed to provide a secure, locking fit to ensure consistent electrical contact, thereby enhancing operational safety.

The UDAS and UDAP connectors are manufactured to comply with several industry standards, ensuring that they meet or exceed the requirements for electrical safety and performance. Their user-centric design features help in reducing installation time and costs, making them a preferred choice among contractors and engineers.

Furthermore, these connectors are versatile, compatible with a wide range of electrical systems, and can be employed in applications such as HVAC, lighting, and power distribution. They also come in various sizes and configurations to accommodate diverse specifications, improving customization options for different projects.

In summary, the Thomas & Betts UDAS and UDAP series stands out for their robust design, quick-connect technology, and versatility across various industrial applications. Their durability and compliance with safety standards make them an excellent choice for professionals seeking reliable connectivity solutions in demanding environments. Investing in these connectors ensures optimal performance and safety in electrical installations, showcasing Thomas & Betts' commitment to excellence in electrical components.
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