Manual Thomas & Betts RZ-NA 441-OMS

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  • Thomas & Betts RZ-NA 441-OMS - page 1

    Page 1 FOR YOUR SAFETY W ARNING: The use and storage of gasoline or other flammable vapors and liquids in the vicinity of this appliance is hazardous. If you smell gas: 1. Open windows. 2. Don't touch electrical switches. 3. Extinguish any open flame. 4. Immediately call your gas supplier . W ARNING: Improper installation, adjustment, alterati ...

  • Thomas & Betts RZ-NA 441-OMS - page 2

    Page 2 Maintenance Section This direct-fired makeup air system is designed to require only a minimum amount of maintenance. Some maintenance procedures outlined in this Section require inspection only and some require action. Frequency requirements of each maintenance procedure are listed in the Maintenance Schedule. Depending on the environment an ...

  • Thomas & Betts RZ-NA 441-OMS - page 3

    Page 3 Inlet Pressur e T ap V alve V alve Regulator Manifold Pressure T ap Gas Supply Pilot Regulator Pilot Solenoid V alve Pilot Pressur e T ap 3. Manifold Gas Pressure Semiannually , check the gas pressure to the burner and to the pilot. Measure both manifold pressure and pilot supply pressure w ith the blower in operation. Refer to Figure 3 for ...

  • Thomas & Betts RZ-NA 441-OMS - page 4

    Page 4 4. Air Pressure Profile plate sensing tubes should be checked quarterly and cleaned no less than semiannually . If the sensing tubes become even partially blocked, false pressure readings may be relayed. T o clean, remove the screened end caps. Clean the screens and the tubes, if necessary . Re- place the cleaned end caps. Check the pressure ...

  • Thomas & Betts RZ-NA 441-OMS - page 5

    Page 5 Operation/Service Section Controls - Location, Operation, and Service T o service this system, it is necessary to understand the normal operation of the controls and the function of the diagnostic circuit board. Refer to the electrical box drawing in Figure 7 and to the individual illustrations to identify and locate each of the controls. Th ...

  • Thomas & Betts RZ-NA 441-OMS - page 6

    Page 6 10. Ignition System Location: Ignition Controller Module in the Control Compartment Electrical Box (See Figures 7 and 13.); Ignitor and Flame Sensor on the Burner (See Figure 14.) Hot Surface Ignition System with Prepurge Time Delay and Flame Sensor with 100% Lockout Function: The ignition system including the controller, the hot surface ign ...

  • Thomas & Betts RZ-NA 441-OMS - page 7

    Page 7 For troubleshooting guides and further explanation of Maxitrol Series 14 and 44 electronic modulation gas control systems, refer to the Maxitrol literature in the owner's envelope. The Option AG30, AG31, AG32 and AG35 electronic modulation systems are comprised of Maxitrol Series 14 controls. Options AG30 and AG31 systems electronically ...

  • Thomas & Betts RZ-NA 441-OMS - page 8

    Page 8 12. Outside Air Cutoff Control (Option BN2; required on C.G.A.-certified units) Location: The control is in the electrical box (See Figure 7.); the sensor is in the air inlet. Function: After sensing pilot flame, the burner ignites at its lowest input rate. The "amount of heat" required to reach the de- sired discharge temperature ...

  • Thomas & Betts RZ-NA 441-OMS - page 9

    Page 9 13. Door Switch (Option BX1; required on C.G.A.-certified units) Location: The control is installed on an over- head door opening to control the operation of the heater to coincide with the opening and clos- ing of the door . Function: The function of the switch is to ener- gize and interlock the heating unit when an out- side overhead door ...

  • Thomas & Betts RZ-NA 441-OMS - page 10

    Page 10 15. Dirty Filter Switch Location: Switch is located in the main electrical box (See Figure 7); sensor tubes run to either side of the filter rack; indicator light is on the remote console. Function: The dirty filter switch is a pressure switch that activates an indicator light on the remote console when the filters need cleaned or replaced ...

  • Thomas & Betts RZ-NA 441-OMS - page 11

    Page 11 19. T roubleshooting Chart 1 - General T roubleshooting Guide (Check the diagnostic lights on the circuit board) Sym p tom or P r ob l e m C au s e an d R e m e d y 1. Disconnec t s wit ch i s cl osed, but " control p ow e r" lig ht is not l it . 1. F us e s are mi s s i ng or bl own in disconne ct sw i t ch - rep l ace fu s es . ...

  • Thomas & Betts RZ-NA 441-OMS - page 12

    Page 12 Index .................................................. Page Air Pressure ............................................. 4 Air Pressure Switches ............................... 6 Blower Bearings ....................................... 3 Circuit Indicator Board ............................ 4 Control Locations ................................ ...

Manufacturer Thomas & Betts Category Appliance Trim Kit

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All of them are important, but the most important information from the point of view of use of the device are in the user manual Thomas & Betts RZ-NA 441-OMS.

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A complete manual for the device Thomas & Betts RZ-NA 441-OMS, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Thomas & Betts RZ-NA 441-OMS by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Thomas & Betts RZ-NA 441-OMS.

A complete Thomas & Betts manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Thomas & Betts RZ-NA 441-OMS - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Thomas & Betts RZ-NA 441-OMS, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Thomas & Betts RZ-NA 441-OMS, that we can find in the current document
3. Tips how to use the basic functions of the device Thomas & Betts RZ-NA 441-OMS - which should help us in our first steps of using Thomas & Betts RZ-NA 441-OMS
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Thomas & Betts RZ-NA 441-OMS
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Thomas & Betts RZ-NA 441-OMS in a specific country, if it was not possible to solve the problem on our own.

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