Thomas & Betts UDAP, UDAS dimensions Series Fan-Type Unit Heaters, Table of Contents

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C E R T I F I E D

Series Fan-Type Unit Heaters

Installation/Operation FORM RZ-NA I-UDA

APPLIES TO:

Models UDAP and UDAS

 

 

Table of Contents

 

 

Page

Warnings

1

Installation/Operation

2-25

Check/Test/Startup

26-28

Maintenance/Service

..............

28-36

Index (by page)

 

Burner

16, 29

Burner Orifice

30

Burner Removal

29

California Warning Label

3

Clearances

7

Installation Codes

2

Confined Space (UDAP)

8

Dimensions

4-5

Disconnect, Built-in (UDAS)

16, 34

Door Switch (UDAS)

19, 33

Downturn Nozzle (Option)

4

Electrical Connections

16

Fan

32

Fan Motor

22, 32

Flame Rollout Switch

18, 34

Gas Piping and Pressures

12

Gas Valve

22, 33

General

2

Hanging the Heater

10

Hazard Intensity Levels

2

Heat Exchanger Maintenance

29

High Altitude

6, 14

Ignition System

19, 31

Limit Control

18, 33

Location (Heater)

9

Maintenance Schedule

28

Pressure Switch (Combustion Air)

17, 33

Replacement Parts

See Form P-UD

Sound Data

6

Startup

26

Suspending Heater

4

Technical Data

6

Thermostat (Option)

17

Throw (Heater)

9

Transformer

33

Troubleshooting

34-36

Uncrating and Preparation

3

Valve Outlet Pressure

14

Vent System

34

Venter Motor

32

Venting Model UDAP

Use Form I-V-PV

Venting Model UDAP-CV

Use Form I-V-CV

Venting Model UDAS

Use Form I-V-SC

Warranty

3

Wiring Diagrams

23-25

FOR YOUR SAFETY

What to do if you smell gas:

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

•If you cannot reach your gas supplier, call your fire department.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operation, and maintenance instructions thoroughly before installing or servicing this equipment.

WARNING: Gas-fired appliances are not designed for use in hazardous atmospheres containing flammable vapors or combustible dust, in atmospheres containing chlorinated or halogenated hydrocarbons, or in applications with airborne silicone substances. See Hazard Levels, page 2.

WARNING: Should overheating occur, or the gas supply fail to shut off, shut off the manual gas valve to the appliance before shutting off the electrical supply.

WARNING: Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and replace any gas control that has been under water.

Form RZ-NA I-UDA, Mfg #195673 Rev 5, Page 1

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Contents Series Fan-Type Unit Heaters Table of ContentsGeneral Installation CodesHazard Levels of Warnings in this Manual Venting Manual by ModelMassachusetts Requirement Warranty Uncrating and PreparationSize DimensionsModel Udas Separated Combustion Fan Size 100 125 Technical DataPressure Switch Instructions for Changing Pressure SwitchHigh Altitude Operation ClearancesModel Udap and Model UDAP-CV Combustion Air applies to Model Udap and ModelHeater Throw Unit Heater LocationLocation Recommendations Hanging the Heater Unit Heater Location cont’dModel Udap Size 100 125 150 175 225 250 300 350 400 Model Udas Size 100 125 150 175 225 250 300 350 400Recommended maximum hanger rod length is 6 feet 1.8M Connectors areBe sure Threaded swivel Locked toSizing Gas Supply Line Gas Piping and PressuresGas Connection Size Instructions Gas Piping and Pressures cont’d Manifold Pressure Settings by Altitude for CanadaInstructions for High Altitude Derate Two -Stage ValveFeet Meters High Altitude Capacity ChangesThermostat and Connections Burner Electrical Supply and ConnectionsCombustion Air Proving Switch Pressure Switch Combustion Air Proving Pressure Switch SettingsLimit Control Dip Switch Door Switch Model Udas only Ignition SystemNormal Heat Cycle Operating Sequence StatusLED LightsSW1 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 Check the installation prior to startup Heater Startup Check Installation and StartupOperating Instructions Operating Sequence Vent System Testing Procedure Model Udap Check installation after startupStartup cont’d Maintenance ScheduleUse only factory-authorized parts Burner Removal Instructions Refer to Figure Heat Exchanger Maintenance Burner MaintenanceInspect and Clean the Burner Re-Install the Burner Burner Maintenance cont’dInstructions to Re-Install the Burner Refer to Figure Burner OrificeDSI System IgnitionCont’d Fan BladesDoor Switch Combustion Air Pressure SwitchOperating Gas Valve Udas onlySwitch Flame Rollout Switch Sizes 30-125 onlyAir System Troubleshooting DisconnectVenter motor General TroubleshootingWill not start Burner willCont’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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