nVent PLRN28 - Easy Swap Air Cond Adaptor Plenum Multiple Competitors to N28, Lt Gray, Steel
nVent

PLRN28

UPC: 783510260682


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Overview

Upgrade aging or damaged air conditioning systems effortlessly with the **nVent HOFFMAN Easy Swap Adaptor Plenum (PLRN28)**, a precision-engineered solution designed to streamline enclosure retrofits without costly modifications. When an existing air conditioner reaches end-of-life or suffers damage, replacing it with a modern nVent HOFFMAN unit no longer requires cutting new openings or fabricating custom mounting solutions. The Easy Swap Adaptor Plenum bridges the gap between legacy cutouts and new air conditioner models, preserving the enclosure’s structural integrity while maintaining critical NEMA Type 12 and IP54 ratings for dust and water resistance. This adapter is part of nVent’s trusted HOFFMAN thermal management portfolio, a brand synonymous with durability and performance in industrial cooling applications. The adaptor plenum is constructed from **18-gauge steel** and finished in a light gray coating that matches standard nVent HOFFMAN air conditioner aesthetics, ensuring a seamless visual integration with existing systems. Unlike flat replacement plates that can obstruct airflow and reduce cooling efficiency, the plenum design optimizes air intake and outtake, maintaining thermal performance while simplifying installation. A **pre-installed gasket** ensures a tight seal against the enclosure, preventing contaminants from entering and preserving the environmental protection required in harsh industrial environments. This solution is ideal for facilities where downtime must be minimized, such as manufacturing plants, data centers, telecom shelters, and outdoor enclosures housing sensitive electronics. Professionals in industrial thermal management rely on nVent HOFFMAN for its **cross-compatibility** with multiple air conditioner brands, including Hoffman, McLean, Genesis, T-Series, HC52, Proair, and SpectraCool models. The adaptor plenum eliminates the need for enclosure alterations, reducing labor costs and accelerating system restorations. Its **universal mounting hole alignment** ensures compatibility with standard cutouts, while the plenum’s aerodynamic profile enhances airflow dynamics compared to flat adapters. Available in light gray as standard, custom colors can be requested to match specific branding or aesthetic requirements. Installation is straightforward: remove the damaged air conditioner, position the adaptor plenum over the existing cutout, and secure it using the pre-drilled mounting holes. The new nVent HOFFMAN air conditioner then attaches directly to the plenum, restoring full functionality without additional modifications. This approach not only saves time and money but also extends the lifespan of enclosures by avoiding unnecessary cutting or welding. For engineers and maintenance teams seeking a **plug-and-play retrofit solution**, the Easy Swap Adaptor Plenum delivers reliability, performance, and peace of mind. Backed by nVent’s global engineering expertise and distributed by industry leaders like Gross Automation, this product exemplifies the company’s commitment to **innovation in thermal management**. Whether upgrading legacy systems or standardizing equipment across a facility, the HOFFMAN Easy Swap Adaptor Plenum (PLRN28) provides a durable, compliant, and cost-effective pathway to modern cooling solutions.
  • No modification of the enclosure required - designed to match the enclosure cut-out and mounting holes of the air conditioner being replaced
  • Plenum design allows for optimum air flow (vs. a flat plate that can block the air intake and air outtake left by the older air conditioner)
  • Gasket included
  • 18 gauge steel
  • Pre-installed gasket ensures a tight seal against the enclosure
  • Cross-compatible with multiple air conditioner brands (Hoffman, McLean, Genesis, etc.)
  • No enclosure modifications required—matches standard cutouts and mounting holes
  • Custom color options available upon request
  • Backed by nVent HOFFMAN’s global thermal management expertise

Specifications

Air Conditioner Manufacturer to Replace
ISC, Kooltronic, Rittal, Thermal Edge
Application
Controls and Drives;Power Distribution
Color
Light Gray
Color
Gray
Color
Grey
Color Code
RAL 7035
Depth
1.5 IN
Depth
38 mm
Finish
Lt Gray;Powder Coated
Finish
Powder Coated
Height
29 in
Height
737 mm
Material
Mild Steel
NEMA Rating
12 Indoor, dust-resistant
Product Family
EasySwap
Protection Rating
NEMA Type 12
Size
29 x 11.5 x 1.5 in
Thickness
18 ga
Thickness
1.21 mm
Thickness
51.40mm (2.024")
Type
Air Conditioners
Weight
6.4 lb
Width
11.5 in
Width
292 mm
Package Dimensions (L x W x H)
31.25 IN x 14 IN x 2.4 IN
Package Dimensions (L x W x H)
79.375 cm x 35.56 cm x 6.096 cm
Package Weight (Imperial)
6.400 L
Package Weight (Metric)
2.903 kg
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How to Install the Plenum Adaptor for Air Conditioner

This guide provides step-by-step instructions for installing the Plenum Adaptor for your air conditioning unit, ensuring proper setup and connection.

Estimated time: 30m

Tools needed:

Screwdriver, Wire strippers

Supplies needed:

Mounting screws, Washers, Gasket

  1. Install the gasket

    Place the gasket included with the air conditioner onto the designated area to ensure a proper seal.

  2. Secure the adaptor

    Use the included screws and washers to firmly attach the Plenum Adaptor to the air conditioner. Ensure that the screws are tightened to 65 in-lbs (7.34 Nm).

  3. Connect the power cord

    Connect the power cord supplied by the customer to the appropriate terminal on the air conditioner, ensuring a secure and proper connection.

Frequently Asked Questions about nVent

What industries and applications are nVent products used for?

nVent products are engineered for critical infrastructure and industrial applications across multiple demanding sectors. Key markets include Construction, Data Centers, Defense, Healthcare, Mining, Oil & Gas Refineries, Power Plants, Rail/Transit, Renewable Energy, Security, Ship Building, Steel Mills, Telecom, and Utilities. Their solutions are designed to withstand extreme environmental conditions, with temperature ranges from -55°C to 105°C and specialized features like UV resistance, oil resistance, and flame resistance.

What environmental ratings do nVent products have?

nVent enclosures feature comprehensive environmental ratings, including UL 508A, CSA, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications. They are rated IEC 60529 IP66, providing robust protection against dust, water, and corrosion in both indoor and outdoor environments. These products operate effectively in temperatures ranging from -40°F to 266°F, with enhanced UV inhibitors for outdoor weathering and oil-resistant gaskets for superior sealing.

What accessories are available for nVent products?

nVent offers a comprehensive range of accessories across multiple product lines, including EMC accessories like bonding cable clamps and strain reliefs, inline accessories such as lock inserts and mounting brackets, CONCEPT accessories including panel conversion kits and rack-mount angles, and seismic accessories for specialized mounting requirements. Key accessory categories include grounding kits, DIN rail mounting solutions, panel supports, handles, and various mounting hardware compatible with different enclosure types.

What certifications and standards do nVent products comply with?

nVent products meet critical international certifications including UL (United States), CSA (Canada), CE (European Community), and EAC (Russia). Our products are designed to comply with rigorous industrial standards such as NEMA enclosure ratings, IEC 60529 IP ratings, and international safety standards across multiple industrial markets including oil & gas, power, manufacturing, and infrastructure.

What is nVent's warranty policy?

nVent offers a standard 18-month warranty from invoicing date for most automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Warranty coverage includes repair or replacement at nVent's discretion, with certain conditions such as authorized service repairs and operation within designed capacity limits.

What technical support does nVent offer?

nVent offers comprehensive technical support through multiple global contact centers across North America, South America, Europe, Middle East, India, and Asia. Customers can reach technical experts by phone at regional numbers, with the North American headquarters in Minneapolis, MN providing primary support at +1.763.421.2240. Additionally, nVent provides online support resources through their website, including CAD drawing downloads and an 'Ask The Expert' feature to assist with product technical inquiries.