GENERAL

Limitations: Ductwork must be in accordance with one of the fol-

lowing: Standards of the National Fire Protection Association for the installation of Air Conditioning and Ventilating Systems of other than Resident Type (Pamphlet 90A) or Residential Type Warm Air Heating and Air Conditioning Systems (Pamphlet 90B).

4.Installation near turns. (Refer to Figure 8). If heater must be installed closer than 4 feet from the downstream side of a turn, turning vanes must be installed in the turn. The turning vanes will straighten out the air flow so it will be uniform over the face of the heater.

Location: Chromalox Duct Heaters may be located anywhere in the duct system.

NOTE: The minimum distances shown are limitations. Wherever possible, locate as far away from these limits as practical. In any case, this distance with any required airflow correction must be sufficient to accomplish even air flow at a velocity equal to, at least, the minimum stated on the heater nameplate.

1.Installation near heat pump, central air conditioner, filters or humidifier. (Refer to Figure 5).

Duct Heater

Duct Heater Here or Here

2 Ft.

Min.

Air

Flow

 

4 Ft.

Min.

Air

Flow

4 Ft.

Min.

Heat Pump,

Figure 8

5.Installation with duct transitions in some air distribution sys- tems, the duct heater may be considerably larger than the duct- work and the duct area must be increased by a sheet metal tran- sition. The slope of the transformation piece on the upstream side of the equipment is limited to 30° as indicated in Figure 9. On the leaving side, the slope should not be more than 45°.

Central Air Conditioner,

Filters or Humidifier

Figure 5

2.Installation near air handler discharge. (Refer to Figure 6).

Duct Heater

Air

Flow

30"

Max.

Air

Flow

30°

4 Ft. Min.

Duct Heater

45°

45°

Max.

4 Ft. Min.

4 Ft.

Min.

Air Handler

Figure 6

3.Installation in branch duct take-off. (Refer to Figure 7).

Air

Flow

 

4 Ft. Min. Straight Section

Duct Heater

Figure 7

Figure 9

6.Do not insulate control or terminal box. (Refer to Figure 10).

 

External

 

Insulation

Top of Duct

Duct Heater

 

Leave Control

 

Box Uninsulated

 

Figure 10

-2-

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Image 2
Chromalox PF455-3 manual Installation near air handler discharge. Refer to Figure

PF455-3 specifications

The Chromalox PF455-3 is a cutting-edge process feedback controller designed to optimize industrial heating applications. As part of Chromalox’s commitment to providing advanced heating solutions, the PF455-3 model stands out due to its robust features, precision control, and user-friendly design.

One of the main features of the PF455-3 is its versatile temperature control capabilities. It operates through a wide temperature range, accommodating various industrial processes that require precise thermal management. The controller employs advanced PID (Proportional, Integral, Derivative) control technology, allowing users to achieve optimal temperature settings with minimal fluctuations. This results in enhanced efficiency and productivity across heating applications.

The PF455-3 is equipped with a large, easy-to-read digital display that allows operators to monitor and adjust temperature settings effortlessly. The intuitive user interface simplifies navigation through various settings and configurations, ensuring that even less experienced personnel can operate the system with confidence. This feature significantly reduces the learning curve associated with similar devices, making it an ideal choice for diverse industries.

Additionally, the PF455-3 places a strong emphasis on safety and reliability. The device includes built-in alarm systems that notify users of any deviations from preset parameters, ensuring immediate action can be taken to prevent potential issues. The unit also features robust construction designed to withstand harsh industrial environments, providing longevity and minimizing downtime.

Moreover, the PF455-3 supports advanced communication technologies. It can be easily integrated into existing control systems via various communication protocols, including Modbus, which facilitates real-time data exchange and remote monitoring capabilities. This connectivity not only enhances operational oversight but also allows for proactive maintenance interventions.

In terms of energy efficiency, the PF455-3 excels by utilizing a unique energy-saving mode. This mode intelligently adjusts heating output based on process requirements, resulting in reduced energy consumption and lower operational costs. Users can expect significant savings on energy bills while maintaining process quality.

In summary, the Chromalox PF455-3 controller represents the forefront of industrial heating technology. With its advanced PID control, user-friendly interface, extensive safety features, and energy efficiency capabilities, it is a reliable choice for businesses looking to enhance their thermal processes. Whether in food processing, oil and gas, or chemical manufacturing, the PF455-3 stands out as a vital tool for achieving precise and efficient temperature control.