C E R T I F I E D

INDOOR OR OUTDOOR, GAS, DIRECT-FIRED, MAKEUP AIR/

HEATING SYSTEMS

(Specifications subject to change without notice.)

Operation/Maintenance/Service

Form RZ-NA 441-OMS

Applies to:

Model Series DV

TABLE OF CONTENTS

Page

Page

 

 

Page

MAINTENANCE

 

8. Temperature Limit Safety Controls ...

5

 

•Manifold Arrangements

8

SECTION

2-4

•Manual Reset Limit Control

5

 

•Gas Pressure Switches

8

Configuration

2

•Emergency Cut Off Limit Control ..

6

12.

Outside Air Ambient Cutoff

8

9. Air Pressure Switches

6

Maintenance Schedule

2

13.

Door Switch

9

•Low Air Flow Switch

6

1A. Blower Bearings

3

14.

Inlet Air Controls

9

•High Air Flow Switch

6

1B. Blower Belts

3

 

•Air Flow Dampers

9

•Bypass Damper (Optional) Air

 

 

2. Filters

3

 

 

•Damper Motor

9

Flow Switches

6

 

3. Manifold Gas Pressure

3

 

•Potentiometer

9

10. Ignition System

6

 

4. Air Pressure

4

 

•Pressure Null Switch

9

11. Gas Train Including Direct-Fired

 

 

5. Circuit Indicator Board (check lights) 4

 

 

•Photohelic Pressure Switch

10

Burner, Gas Control Systems,

 

 

 

 

 

15.

Dirty Filter Switch

10

6. Main Burner and Pilot Assembly

...... 4

Manifold Arrangements and Gas

 

OPERATION/SERVICE

 

Pressure Switches

7

16.

Photoelectric Smoke Detector

10

 

•Direct-Fired Burner

7

17.

Firestat

10

SECTION

5-15

•Makeup Air Gas Control Systems ..

7

18.

Freezestat

10

 

 

Controls - Location

5

•Electronic Modulation Gas Control

 

19. Troubleshooting

11

7. Electronic Circuit Board with

 

Options AG30, AG31, AG32,

 

 

Chart 1 - General Troubleshooting

 

AG33, AG35, AG36

7

 

Guide (Check the diagnostic lights on

Diagnostic Lights

5

 

•Electronic Modulation Gas Control

 

 

the circuit board)

 

 

 

 

 

 

 

 

Option AG37

7

Index

12

References: Installation Manual, Form RZ 441

Replacement Parts Manual, Form RZ 741

FOR YOUR SAFETY

WARNING: 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.

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.

KEEP THIS BOOKLET

FOR MAINTENANCE AND SERVICE REFERENCE.

Operating/Maintenance/Service Instructions

The information in this manual applies to Model Series DV, di- rect-fired heating/makeup air systems. As with any gas burning equipment, regular maintenance procedures are required to en- sure continued safety, reliability and efficiency of the installa- tion.

If service is required, this system should be serviced only by a qualified service person. Service information in this booklet is intended as a guideline for a qualified gas-fired equipment ser- vice person.

Mfg No. 161442 Page 1

Page 1
Image 1
Thomas & Betts RZ-NA 441-OMS installation manual Operating/Maintenance/Service Instructions, Table of Contents

RZ-NA 441-OMS specifications

The Thomas & Betts RZ-NA 441-OMS is a cutting-edge component designed for advanced electrical applications, known for its reliability and performance. This product stands out in the market due to its innovative features and robust design, making it ideal for a variety of industrial and commercial uses.

One of the main features of the RZ-NA 441-OMS is its superior connectivity capabilities. The component is engineered to provide seamless integration with multiple electrical systems, ensuring efficient power distribution and minimal downtime. The versatility of this device enables it to be utilized in various setups, including complex machinery and sophisticated automation processes.

Another notable characteristic of the RZ-NA 441-OMS is its remarkable insulation properties. The device is built with high-quality materials that enhance its thermal stability and resistance to environmental factors. This ensures that it can withstand harsh conditions while maintaining optimal functionality, making it a reliable choice for outdoor applications and areas with extreme temperatures.

The RZ-NA 441-OMS also incorporates advanced safety features, such as overcurrent protection and fault detection systems. These technologies are designed to prevent electrical failures, safeguarding both the equipment and personnel involved. This emphasis on safety aligns with Thomas & Betts’ commitment to providing reliable solutions that prioritize user protection and system integrity.

In terms of installation, the RZ-NA 441-OMS is designed for ease of use. Its compact design allows for quick and straightforward mounting, saving valuable time during setup. Additionally, it features customizable configurations, making it suitable for various application needs. This flexibility is particularly beneficial for companies seeking to optimize their operations while ensuring compatibility with existing infrastructure.

Moreover, the RZ-NA 441-OMS is supported by extensive documentation and customer service, ensuring that users have access to the information and assistance they need for effective implementation and troubleshooting.

Overall, the Thomas & Betts RZ-NA 441-OMS represents a significant advancement in electrical connectivity solutions, combining robustness, versatility, and safety in a single package. Its innovative features make it an essential component for businesses looking to enhance their electrical systems reliably and efficiently.