Part #474750

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Digital Temperature Interlock

 

Installation, Operation and Maintenance Manual

Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage!

Product Specification

Digital Temperature Interlock

International Mechanical Code (IMC) 2006 section 507.2.1.1 Compliant Electrical Package

Provide Greenheck temperature interlock electrical package as shown on plans and in accordance with the following specification:

The temperature interlock(s) consists of a temperature controller, resistive temperature detector (RTD), junction box, fire proof/leak proof threaded fitting (Evergreen Quik-Seal® and/or Evergreen Compression Seal), and shall be a self-contained unit or as part of another pre-engineered electrical control package.

The temperature interlock package shall close a relay powering the fans when the sensor detects the temperature set point. The interlock shall hold the circuit closed upon fan switch being turned off until the temperature sensor detects a temperature below the set point plus hysteresis. Once the temperature is below the set point plus hysteresis, the fans shall shut down.

The temperature interlock package shall be constructed by Greenheck in accordance with International Mechanical Code. The manufacturer shall provide, upon request, the necessary data that confirms compliance with the code listed above.

Due to continuous research, Greenheck reserves the right to change specifications without notice.

General Description

Description

The temperature interlock is designed to automatically start kitchen hood exhaust fans and keep them running while heat is being generated from the cooking appliances. Hood systems should always be manually started before equipment is turned on. If the fans are forgotten to be turned on, the interlock will turn the fans on once heat is detected. The interlock consists of a temperature controller, resistive temperature detector (RTD), junction box, Evergreen Compression Seal threaded fitting, and is contained in a stand alone box or can be added to a pre- engineered fan control center.

Purpose

To meet IMC 2006 section 507.2.1.1, interlock between exhaust fans and cooking equipment. This system will utilize a temperature sensor in the exhaust duct collar or in capture area of hood to detect heat generated from cooking operations and automatically activate the exhaust fans if not already turned on. Field wiring may be required depending on location of components.

Product Application

The temperature interlock is designed to be used with Type I and Type II hoods. It is not to be used in conjunction with exhaust fire dampers. Greenheck recommends using one interlock per hood system (activates all fans linked to system simultaneously).

Performance Goals

Automatically energize the exhaust fans when cooking equipment generates heat. Basic controls will be provided with a temperature sensor and will consist of an 8 x 8 electrical box with controls and a labeled terminal strip to hook-up incoming power and fan starters. A temperature controller is used to keep the exhaust fans running when the temperature controller initially closes to prevent the fan from cycling on and off at startup and shut down. Fans will shut down automatically once the temperature has gone below the set point plus hysteresis. The hysteresis can be adjusted based on jobsite requirements.

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Greenheck Fan 474750 specifications Product Specification, General Description
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474750 specifications

The Greenheck Fan Model 474750 is a high-performance ventilation solution designed for a variety of commercial and industrial applications. This fan is particularly known for its reliable operation, energy efficiency, and robust construction, making it an ideal choice for facilities that require adequate air movement and control.

One of the standout features of the Greenheck Fan 474750 is its advanced aerodynamic design, which minimizes resistance and optimizes air flow. This design results in greater energy efficiency, allowing users to reduce operational costs while maintaining effective ventilation. The fan is engineered to handle a wide range of air handling requirements, making it versatile for different environments, from warehouses to manufacturing plants.

The technology behind the Greenheck Fan 474750 includes a precision-balanced impeller, which ensures smooth operation with minimal vibration. This not only extends the lifespan of the fan but also enhances indoor air quality by preventing the introduction of unnecessary noise and disturbances in the workplace. Additionally, the fan is equipped with an energy-efficient motor designed to meet or exceed industry standards, thus ensuring compliance with energy regulations and helping reduce carbon footprints.

The construction of the Greenheck Fan 474750 emphasizes durability. Built with corrosion-resistant materials, this fan can withstand harsh environmental conditions, making it suitable for both indoor and outdoor installations. Its robust frame and casing add to its longevity, ensuring that maintenance needs are minimized over time.

Another important characteristic of the Greenheck Fan 474750 is its modular design, which allows for easy installation, maintenance, and potential upgrades. Users can easily adapt the fan to meet changing air flow requirements without extensive modification. This flexibility is particularly beneficial for facilities that may experience fluctuations in operational needs.

In summary, the Greenheck Fan 474750 stands out in the market for its energy-efficient performance, advanced aerodynamic design, durable construction, and adaptable features. Whether used in commercial or industrial settings, this fan is engineered to provide exceptional airflow while reducing energy costs and ensuring consistent reliability. Investing in a Greenheck Fan 474750 not only enhances workplace comfort but also contributes to a more sustainable operational practice.
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