Chromalox PE429-1 dimensions General, Installation

Page 1

Installation, Operation

and

RENEWAL PARTS IDENTIFICATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

NWHO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Supersedes PE429)

PE429-1

161-058065-001

FEBRUARY, 1986

2 x 3/4

Slot

B

D

A 6” Outlet

Temperature

Control

6” Inlet

E 1”

813/16

 

 

 

 

 

5 Conduit

 

 

 

Outlets

 

 

 

72° Apart

 

 

 

or

 

C

6 Conduit

Mounting

Outlets

Lug Centers

60° Apart

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type NWHO-45, 72, 108

Circulation Heaters for

Regular and Fuel Oil

Heating

Specifications – Table A

 

 

 

 

 

Dimensions (In.)

 

 

 

 

No. 3Ø

 

 

 

 

 

Model

Volts 3Ø

kW

Circuits

A

B

C

D

E

NWHO-4590

240 or 480

90

5

721/2

251/2

635/8

1813/16

121/2

NWHO-45125

240 or 480

125

5

871/2

251/2

785/8

1813/16

121/2

NWHO-45150

240 or 480

150

5

1021/2

251/2

935/8

1813/16

121/2

NWHO-45175

240 or 480

175

5

1171/2

251/2

1085/8

1813/16

121/2

NWHO-45200

240 or 480

200

5

125

251/2

1161/8

1813/16

121/2

NWHO-77220

240 or 480

200

6

971/2

273/4

885/8

19

133/4

NWHO-77225

240 or 480

225

6

1051/2

273/4

965/8

19

133/4

NWHO-77250

240 or 480

250

6

1131/2

273/4

1045/8

19

133/4

NWHO-108300

240 or 480

300

6

981/2

291/2

895/16

193/8

141/2

NWHO-108325

240 or 480

325

6

1041/2

291/2

955/16

193/8

141/2

NWHO-108350

240 or 480

350

6

1101/2

291/2

1011/16

193/8

141/2

These Dimensions are typical. Check factory for dimensions of a particular unit.

GENERAL

The high capacity NWHO-45, 72 or 108 series are intended for indoor use and are used primarily for oil heating.

The 45, 72 or 108 steel sheathed tubular elements are centered in a 14”, 16” or 18” diameter steel heating chamber, respectively, and welded to a removable steel flange. The assembly is sur- rounded by 2” of insulation and a sheet metal jacket.

Depending upon the order specifications, the NWHO-45, 72 or 108 may or may not be factory equipped with an MF2 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 essen- tial. Although the safety of the installation is the responsibility of the user, Chromalox will be glad to make equipment recommendations.

1.Vertical mounting (axis of chamber vertical) is preferred. Check factory for constructions suitable for hori- zontal mounting.

2.Mount heater with terminal enclo- sure at top, and use lower nozzle as inlet to the circulating fluid.

3.The NWHO-45, 72 and 108 series of circulation heaters are provided with mounting lugs to support the heater chamber. Refer to Figure A for one suggested mode of support.

4.Mount heaters to permit unre- strained expansion of chamber due to temperature. The large flange lug

INSTALLATION

should be bolted solidly; however, the remaining lug should be bolted loosely to allow freedom of movement with expansion.

5. DANGER: Hazard of Fire. Provide minimum of 6” spac- ing from chamber and related piping to nearest combustible material. Avoid operation of heater near combustible fluids or in combustible vapor or gas laden atmosphere. Note: Contact factory for heaters suitable for use in hazardous locations.

6.Provide adequate space at terminal end to permit withdrawal of the heater from chamber should servicing be required.

7.If two or more heaters are needed to provide the needed heat- ing capacity, arrange them for series flow.

8.DANGER: Possible Explosion. A pressure relief valve

should be provided by customer at outlet of vessel. There should be no valving between vessel and relief valve.

Figure A

© 2010 Chromalox, Inc.

Image 1
Contents General InstallationMaintenance WiringOperation Renewal Parts Identification

PE429-1 specifications

The Chromalox PE429-1 is a cutting-edge industrial heating solution designed to cater to a wide range of applications, particularly in demanding environments. This innovative product embodies an impressive amalgamation of advanced technologies, ensuring optimal performance and efficiency.

One of the hallmark features of the PE429-1 is its robust construction. Built to endure high temperatures and harsh conditions, the device is made from durable materials that resist wear and corrosion. This increases its longevity and decreases the need for frequent replacements or repairs, ultimately saving costs over time.

The PE429-1 also incorporates sophisticated temperature control technologies. With a precise digital thermostat, operators can easily set and monitor temperatures, ensuring that processes remain within desired parameters. This level of control not only enhances operational efficiency but also minimizes the risk of overheating, which could lead to equipment damage or safety hazards.

Moreover, the unit is equipped with advanced safety features that are paramount in industrial settings. Over-temperature protection, intricate wiring designed for reliability, and fail-safe mechanisms contribute to a secure and stable operating environment. These safety provisions are essential in preventing accidents and ensuring compliance with industry regulations.

Another key characteristic of the Chromalox PE429-1 is its versatility. This device can be utilized in various applications, including chemical processing, food manufacturing, and pharmaceutical production. Its ability to accommodate different watt densities and voltage requirements makes it a preferred choice for contractors and engineers looking for customizable solutions.

Energy efficiency is another significant advantage of the PE429-1. The design minimizes energy consumption while maintaining high performance levels, which is increasingly important in a landscape where sustainability and operational cost-effectiveness are paramount.

Additionally, the PE429-1 features an intuitive interface that promotes ease of use. Operators can quickly learn how to configure and operate the system, reducing training time and operational downtime.

In summary, the Chromalox PE429-1 stands out as a premier heating solution, showcasing durability, precise temperature control, enhanced safety features, versatility in applications, and energy efficiency. Its design and technological innovations make it a vital asset in modern industrial settings, ensuring optimal performance while contributing to safety and sustainability efforts.