nVent NHZ280416G300 - SpectraCool Narrow Hazardous Location AC, 4000BTU 115V, Lt Gray, Steel
nVent

NHZ280416G300

UPC: 783510286354

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Installation Instructions

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Overview

The nVent SpectraCool Narrow Hazardous Location AC (SKU: NHZ280416G300) is engineered to provide reliable and efficient cooling in environments where explosive atmospheres may be present. Designed specifically for hazardous locations, this unit offers a robust solution without the need for complex purge and pressurized systems, simplifying installation and maintenance. Its attractive, narrow design minimizes the visual impact and fits seamlessly into 12-inch (300-mm) deep cabinets, making it ideal for space-constrained applications. Built to meet stringent industry standards, the SpectraCool NHZ28 is UL/cUL Listed and rated for Type 4 environments, ensuring protection against dust and water ingress. Crucially, it is certified for Class 1 Division 2 Groups A, B, C, D T4A hazardous locations, making it suitable for a wide range of critical industries. These include onshore and offshore oil and gas operations, chemical and petrochemical plants, mining facilities, and pharmaceutical manufacturing, where the presence of flammable vapors necessitates specialized equipment. Key features of the nVent SpectraCool NHZ28 include: * **Hazardous Location Engineered:** Specifically designed for hazardous environments, not adapted from standard industrial units. * **Simplified Operation:** Eliminates the need for purge and pressurized systems. * **Attractive & Narrow Design:** Features minimal visible fasteners and a slim profile for 12-inch deep cabinets. * **Robust Protection:** UL/cUL Listed and Type 4 rated for durability and environmental resistance. * **Hazardous Location Certification:** Class 1 Div 2 Groups A, B, C, D T4A compliant. * **Digital Temperature Control:** Provides precise climate management. * **Dust Resistant Coils:** Designed for filterless operation in many environments, with an optional cleanable aluminum mesh filter for extremely dusty conditions. * **Earth-Friendly Refrigerants:** Utilizes R134a for reduced environmental impact. * **Easy Installation:** Equipped with Easy-Mount flanges and includes mounting hardware, gaskets, and a user manual. * **Comprehensive Testing:** Every unit undergoes functional testing before shipment to ensure reliability. The SpectraCool NHZ28 operates with a nominal cooling capacity of 4000 BTU/hr (1172 W) and is powered by 115 VAC. Its light gray, semi-textured powder-coat paint finish (RAL 7035) provides a professional appearance and added protection. Standard Type 4 models include active condensate management with a heater strip, compressor heater, head pressure control, a power-off relay for door switch integration, and a malfunction switch for enhanced operational safety and system integration. The operating temperature range for outdoor use is -40°F to 125°F (-40°C to 52°C). Trust nVent's expertise in thermal management for your critical hazardous location cooling needs.
  • Not re-built from light industrial air conditioners
  • Painted galvanized sheet metal cover for rugged factory and outdoor environments
  • Corrosion resistant coating on ambient side components for Type 4X models
  • Corrosion resistant coating on ambient and enclosure side components for Type 4X Offshore models
  • Dust resistant coils for filterless operation in most environments
  • Cleanable, reusable aluminum mesh filter protects coils for extremely dusty and dirty atmospheres
  • Digital temperature control
  • Narrow design to accommodate 12-in (300-mm) deep cabinets
  • R134a, R513A or R407C earth-friendly Refrigerant
  • Models for 115, 230 and 400/460 3-phase VAC power input

Specifications

Application
Hazardous Environments
Btu Rating
4,000
Color
Light Gray
Color
Gray
Color Code
RAL 7035
Depth
14 in
Depth
356 mm
Frequency
60 Hz
Height
711 mm
Height
28 IN
Ip Rating
Type 4
Material
Mild Steel
Material
Steel
Max Current
9.4 A
Mounting Type
Easy-mount flanges
NEMA Rating
4 Watertight
Nema Rating
Type 4
Nominal Capacity Btu/h
4,000 Btu/h
Nominal Capacity Watts
1,172 W
Nominal Voltage
115 V
Operating Temperature
-40-125
Operating Temperature
-40-52
Operating Temperature
-40-52 °C
Product Family
SpectraCool
Protection Rating
NEMA Type 4
Remote Access Control
No
Series
SpectraCool NHZ28
Size
Narrow (12-inch/300-mm deep cabinets)
Thickness
1.27 mm
Thickness
18 ga
Thickness
51.40mm (2.024")
Type
Air Conditioners
Voltage AC
100-120 V
Voltage Rating
100 - 120 VAC
Voltage Rating
115 VAC
Weight
38 kg
Weight
88 lb
Width
292 mm
Width
11.5 in
Package Dimensions (L x W x H)
18 IN x 13.5 IN x 30 IN
Package Dimensions (L x W x H)
45.72 cm x 34.29 cm x 76.2 cm
Package Weight (Imperial)
88.000 L
Package Weight (Metric)
39.917 kg
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How to Install the NHZ280416G300 Air Conditioner

This guide provides step-by-step instructions for installing the NHZ280416G300 air conditioner in a hazardous location enclosure.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors, Mounting gasket kit

  1. Inspect the air conditioner

    Check for any visible damage and ensure the unit is functioning correctly before installation.

  2. Prepare the installation site

    Ensure a minimum of six inches of clearance on at least one side and twenty inches from the front for cover removal. Use the cutout template to prepare the enclosure.

  3. Mount the air conditioner

    Secure the air conditioner to the enclosure using the mounting screws and gasket kit, ensuring not to damage the gasket.

  4. Wire the unit

    Connect the air conditioner to a properly grounded power supply according to the nameplate specifications, using copper conductors only.

  5. Adjust the controller settings

    Set the desired cabinet temperature on the controller. Refer to the manual for specific programming instructions.

  6. Test the air conditioner

    Energize the unit and verify that the evaporator fan starts and the compressor operates correctly within the specified temperature range.

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.