Installation, Operation

and

RENEWAL PARTS IDENTIFICATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

EH-HVT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Supersedes PF421-5)

PF421-6

161-048557-001

APRIL, 2003

Type EH and HVT Electric Utility Heater

Type EH

Type HVT*

NOTICE: Carefully remove heater from carton and check for shipping damage. Any damage claims should be entered immediately with the carrier.

 

 

 

 

63/4

 

 

A (EH)

 

33/4

 

 

A (HVT)

 

Thermostat

 

 

 

 

 

 

 

 

(HVT Only)

Specifications – Table A

 

 

 

 

 

 

Dim. “A”

 

Model

VoltS

WattS

(In.)

BTUH

EH-1221

120

250

145/8

853

EH-1221

240

250

145/8

853

EH-1251

120

500

145/8

1706

EH-1251

240

500

145/8

1706

HVT-1251*

120

500

285/8

1706

HVT-2411*

120

1000

285/8

3412

*HVT models are equipped with a 55°F to 110°F adjustable thermostat.

GENERAL

FIRE HAZARD. Since heaters are capable of devel- oping high temperatures, extreme care should be taken to:

A.Locate on vertical wall with length of heater positioned horizon- tally. HVT models must be installed with thermostat at right end;

B.Avoid mounting into a wall recess since such mounting interferes with free air circulation, increases heater temperatures, and pre- vents proper thermostat operation on HVT models;

C.Mount heaters with a minimum clearance of 24” above floor level or from adjacent wall;

D.Keep all combustible materials a minimum of 4” from front and top of heater.

1.Remove screw from each end and remove perforated cover.

2.After feeding electrical wiring through opening in back of heater (See WIRING section), mount back of heater to wall with four screws (HVT models-5/16” diameter holes on 5” x 25-7/8”) (EH models 9/32” diameter holes on 5x12-1/2” centers) through back of heater. Leave one pair of end screws snug, but not tight, to avoid expansion noise due to binding.

© 2010 Chromalox®, Inc.

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Chromalox PF421-6 specifications Installation, Operation, General

PF421-6 specifications

The Chromalox PF421-6 is an innovative electric heater designed for industrial and commercial applications, renowned for its efficiency, durability, and versatility. This heater is engineered to provide consistent and reliable performance in various settings, including process heating, space heating, and equipment protection. Its robust construction and advanced features make it a preferred choice for professionals seeking a reliable heating solution.

One of the standout features of the PF421-6 is its advanced control system, which allows for precise temperature management. This control system can be easily integrated into existing processes, ensuring optimal heating performance tailored to specific requirements. The heater supports a variety of control options, including on/off, proportional control, and multi-zone temperature management. This versatility ensures that users can adapt the heating performance to suit their operational needs.

The Chromalox PF421-6 also incorporates advanced heating technologies, including high-efficiency heating elements that provide rapid heat-up times while minimizing energy consumption. The heater's design promotes uniform heat distribution, preventing hot spots and ensuring even heating across surfaces. This characteristic is particularly beneficial in applications where temperature consistency is crucial.

Constructed from high-quality materials, the PF421-6 is built to withstand harsh operating environments. Its robust housing and high-grade insulation contribute to its longevity and reliability, even under heavy use. Additionally, the heater's compact design makes it easy to install and integrate into existing systems without requiring extensive modifications.

Safety is a paramount consideration in the design of the PF421-6. The heater is equipped with multiple safety features, including over-temperature protection and fault detection systems. These mechanisms help prevent accidents and ensure safe operation, making it suitable for a range of industries, from food processing to chemical manufacturing.

Finally, the Chromalox PF421-6 is also notable for its low maintenance requirements. With minimal moving parts and its durable construction, users can expect reduced downtime and lower operational costs. This reliability, combined with its advanced features and technologies, makes the PF421-6 a trusted heating solution for professionals seeking long-term performance and efficiency in their operations.