External Supply Plenum Installation

The purpose of the external supply plenum is to provide make-up air to an exhaust hood to maintain the air balance in the space. The external supply plenum must be hung independent of the hood. Follow the instructions for hanging the following supply plenums: Horizontal, Air Curtain and Variable. See page 8 for Back Supply Plenum. If an external supply plenum is not provided, skip this section.

Installation Instructions

1.If duct collar(s) is shipped loose, place the duct collar(s) over the opening, fastening with tack- welds at 1 to 2 in. (2.54 to 5.08 cm) intervals, or sheet metal screws at 3 to 6 in. (7.62 to 15.24 cm) intervals.

2.Insert 1/2 in. (12.7 mm) diameter threaded rod (by others) into all of the hanger brackets on the supply plenum top. Raise external supply plenum and hang level from adequate roof or ceiling supports. (Horizontal Supply Plenum shown in Fig. 7, must be below finished ceiling. Air Curtain Supply Plenum may be fit into drop ceiling.)

3.Remove perforated panel from plenum and bolt to enclosures through back of plenum (Fig. 8). This will draw plenum tight to the enclosures. Fasteners are not intended to support the plenum; for alignment purposes only.

4.Caulk mating joints with NSF Approved silicone caulk (GE SCS1009, or its equivalent). The caulk is not provided.

Support plenum from all

hangers provided

Fig. 7

Bolt back of plenum to enclosures

Fig. 8

Proximity Hood

PN 458294 specifications

Greenheck Fan PN 458294 is a prominent product in the HVAC industry, designed to deliver high performance, efficiency, and reliability in various applications. This unit is widely recognized for its ability to optimize airflow while minimizing energy consumption, a feature that is becoming increasingly vital in current energy-conscious markets.

One of the key features of the Greenheck Fan PN 458294 is its robust construction. Built with durable materials, this fan is engineered to withstand harsh environmental conditions, making it suitable for both indoor and outdoor installations. The corrosion-resistant finish further enhances its resilience, ensuring a longer lifespan and reduced maintenance costs.

The fan is equipped with advanced aerodynamic designs that improve its airflow performance. This design focus not only maximizes the fan's efficiency but also provides quieter operation, which is a crucial factor in sensitive environments such as offices, schools, and hospitals. The noise reduction technology integrated into the unit helps maintain a comfortable atmosphere while keeping operational disturbances to a minimum.

In terms of technology, the Greenheck Fan PN 458294 features state-of-the-art motor technology that offers variable speed control. This capability allows users to adjust the fan's operation according to specific needs, enhancing energy efficiency while ensuring optimal airflow. The internally mounted motor and belt drive system contribute to reduced vibration and increased stability, further lowering wear and tear over time.

This fan also incorporates innovative control options, allowing for easy integration into existing building management systems. This smart technology enables users to monitor and adjust performance remotely, ensuring maximum efficiency and adaptability to changing operational demands.

Another noteworthy characteristic of the Greenheck Fan PN 458294 is its versatility. It can be utilized in a variety of applications, including industrial ventilation, commercial exhaust, and air supply systems. The wide range of available configurations and accessory options makes it an ideal choice for meeting diverse project requirements.

In conclusion, the Greenheck Fan PN 458294 stands out in the HVAC market due to its combination of robust construction, advanced aerodynamic design, innovative motor technology, and versatile application capabilities. As energy efficiency continues to be a priority in building design, this fan offers a reliable solution for maintaining optimal airflow while minimizing environmental impact.