Chromalox NWHO-33015 specifications General, Installation, Thermostat Specifications Table a

Page 1

Chromalox®

 

 

 

 

 

 

 

 

Installation

SERVICE REFERENCE

 

 

 

 

 

 

 

and

 

DIVISION 4

 

SECTION NHWO

 

SALES

(Supersedes PE406-4) PE406-5

 

 

RENEWAL PARTS IDENTIFICATION

 

REFERENCE

 

 

161-048710-001

1-3/8” Conduit

 

 

DATE

FEBRUARY, 1999

 

 

12-5/16”

 

 

 

 

 

 

 

 

Openings

 

 

 

 

 

 

 

 

1” Pipe

8-1/32”

Type NWHO-3 Series Circulation Heaters

Outlet

 

(for Regular and Fuel Oil Heating)

 

 

 

 

 

 

Thermostat Specifications — Table A

 

 

 

 

 

 

 

 

Type AR

 

 

Regular Oil Heaters

 

 

 

 

 

 

 

 

 

 

 

 

 

A

B C

Mounting Lugs

 

 

 

 

 

Dimensions (In.)

 

 

 

3/8” - 16

Model

Volts

Phase

kW

W/In2

A

B

C

 

 

Threaded Holes -

 

 

1-1/2” Deep

NWHO-33015

 

 

3

 

32-15/16

22-1/2

16-1/2

 

 

1-1/4” Centers

 

 

 

 

 

NWHO-34515

 

 

4.5

 

32-15/16

22-1/2

16-1/2

 

 

 

 

 

 

 

 

 

NWHO-36015

240 or 480

1 or 3 s

6

23

42-15/16

32-1/2

26-1/2

 

 

 

NWHO-37515

 

 

7.5

 

55-7/16

45

39

 

 

 

NWHO-39015

 

 

9

 

55-7/16

45

39

 

 

 

 

 

Fuel Oil Heaters

 

 

 

 

1” Pipe

 

 

NWHO-30315

 

 

3

 

32-15/16

22-1/2

16-1/2

Inlet

 

 

 

 

 

 

 

NWHO-30415

240 or 480

1 or 3 s

4

15

42-15/16

32-1/2

26-1/2

 

 

 

 

 

 

NWHO-30615

 

 

6

 

55-7/16

45

39

 

 

6-1/8”

 

 

 

 

 

 

 

 

GENERAL

WARNING: This heater is not intended for use in haz- ardous atmospheres where flammable vapors, gases, liquids or other combustible atmospheres are present as defined in the National Electrical Code. Failure to comply can result in explosion or fire.

The NWHO-3 series is a general-purpose regular and fuel oil solu- tion circulation heater intended for use indoors. It is designed for 150 psig at 550˚F per ANSI standards.

The 3 steel-sheathed tubular elements are centered in a 3” diame- ter steel heating chamber and welded to a removable steel flange. The assembly is surrounded by 1-1/2” insulation and sheet metal jacket.

Depending upon the order specifications, the NWHO-3 may or may not be factory equipped with AR or other Chromalox thermostat. Such thermostats function to control outlet temperatures and to limit internal temperatures under abnormal flow conditions. These controls do not fail safe.

CAUTION: Users should install adequate back-up controls and safety devices with their electric heating equipment. Where the consequences of failure may be severe, back- up controls are essential. Although the safety of installa- tion is the responsibility of the user, Chromalox will be glad to make equipment recommendations.

INSTALLATION

WARNING: Hazard of Shock. Disconnect all power before installing heater.

1.Vertical mounting (Preferred) —

When the heater is vertically mounted, the terminal housing will be at the top of the heater. The inlet pipe will be located on the side near the bottom of the heater and the outlet pipe at the top.

The axis of the chamber will be in a vertical position as in the photo above and as in Figure A.

Note: A drain pipe located at the bottom of the heater should be provided and enough room left, when mounting heater, to allow draining the heater.

2.Horizontal Mounting (Optional) —

When mounting heater horizontally, inlet and outlet pipes must be up. In any other position, heater cannot be purged of air, and ele- ments may be seriously damaged. (See Figure B.)

Correct

Incorrect

CorrectIncorrect

Figure A — Vertical Mounting

Figure B — Horizontal Mounting

© 2010 Chromalox, Inc.

Page 1 Page 2
Image 1
Page 1 Page 2
Contents Thermostat Specifications Table a InstallationPhase GeneralMaintenance WiringWiring Diagrams Table B OperationRegular Oil Heater Heating Renewal Parts IdentificationFuel Oil Heater Heating Limited Warranty

NWHO-33015 specifications

Chromalox NWHO-33015 is a versatile, high-performance electric heating solution designed to meet the diverse needs of industrial applications. Known for its exceptional build quality and advanced features, it offers reliable heating in demanding environments.

One of the standout characteristics of the NWHO-33015 is its robust construction. Built with durable materials, this heater can withstand high temperatures and harsh working conditions. This durability ensures a long lifespan, reducing maintenance costs and downtime. Furthermore, it is designed to resist corrosion, making it ideal for use in environments where moisture and chemicals are present.

The NWHO-33015 employs state-of-the-art heating technology that enhances efficiency and performance. It utilizes advanced heating elements that provide uniform heat distribution, which is crucial for processes requiring consistent temperature control. This helps maintain product quality and reduces the risk of heat-related damage to materials.

A key feature of the NWHO-33015 is its precise temperature control system. The heater is equipped with advanced controls that allow for accurate regulation of the temperature for various applications. This capability ensures optimal performance and energy consumption, catering to the specific needs of different industries.

Another significant advantage of the Chromalox NWHO-33015 is its ease of installation and integration into existing systems. It can be seamlessly connected to various control systems, enhancing its versatility across different applications. Whether used in chemical processing, oil and gas, or food and beverage industries, this heater adapts to the requirements of varied operational environments.

Safety is paramount in industrial heating solutions, and the NWHO-33015 excels in this area. It features multiple safety mechanisms, including over-temperature protection and fail-safe shutdown options, to prevent accidents and ensure safe operation.

In conclusion, Chromalox NWHO-33015 is a technologically advanced electric heater that combines durability, efficiency, and safety. Its robust construction, precise temperature control, and ease of integration make it an ideal choice for a wide range of industrial applications. With its commitment to quality and performance, the NWHO-33015 continues to set a standard in the electric heating market, providing reliable solutions for demanding industries.
Top Page Image Contents