nVent NHZ280426G400 - SpectraCool Narrow Hazardous Location AC, 4000BTU 230V, Brushed, SS316
nVent

NHZ280426G400

UPC: 783510286538


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Overview

The nVent SpectraCool NHZ280426G400 is a high-performance air conditioning unit engineered specifically for hazardous location cooling applications. Designed by nVent, a trusted leader in enclosure thermal management, this unit provides reliable and safe temperature control in environments where explosive vapors may be present. Unlike standard industrial air conditioners, the SpectraCool Hazardous Location series is purpose-built to meet stringent safety standards, ensuring operational integrity and personnel safety. This specific model, the NHZ28, delivers a nominal cooling capacity of 4000 BTU/hr (1172 W) and operates on a 230V power supply. Its construction features a durable Brushed Stainless Steel 316L enclosure, offering superior corrosion resistance, making it ideal for harsh onshore, offshore oil and gas, chemical, petrochemical, mining, and pharmaceutical facilities. The unit is UL/cUL Listed and certified for Class 1 Division 2 Groups A, B, C, D T4A hazardous locations, providing peace of mind for critical installations. Key features of the SpectraCool NHZ28 include: * **Engineered for Hazardous Locations:** Not a modified light industrial unit, ensuring compliance and safety. * **Attractive and Functional Design:** Features minimal visible fasteners and a narrow profile (12-in / 300-mm deep cabinets) for easy integration. * **No Purge System Required:** Simplifies installation and reduces operational complexity. * **Corrosion Resistance:** Stainless Steel 316L construction for Type 4X models ensures longevity in corrosive atmospheres. * **Dust-Resistant Coils & Filter:** Enables filterless operation in many environments, with a cleanable, reusable aluminum mesh filter for extremely dusty conditions. * **Digital Temperature Control:** Provides precise and easy-to-manage climate control. * **Earth-Friendly Refrigerants:** Utilizes R134a for reduced environmental impact. * **Comprehensive Standard Features:** Includes active condensate management with heater strip, compressor heater, head pressure control, power-off relay, and malfunction switch for robust operation. * **Easy-Mount Flanges:** Facilitates straightforward installation. The nVent SpectraCool NHZ28 is designed for demanding industrial environments where maintaining a safe operating temperature is paramount. Its robust construction, advanced features, and adherence to critical safety certifications make it an essential component for protecting sensitive electrical equipment and ensuring continuous operation in hazardous locations. Trust nVent for your critical thermal management 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
Unpainted
Depth
356 mm
Depth
14 in
Finish
Brushed
Height
28 IN
Height
711 mm
Material
Stainless Steel 316L
Max Current
5 A
Nominal Capacity Btu/h
4,000 Btu/h
Nominal Capacity Watts
1,172 W
Nominal Voltage
230 V
Operating Temperature
-40-52 °C
Operating Temperature
-40-125
Operating Temperature
-40-52
Product Family
SpectraCool
Remote Access Control
No
Thickness
1.27 mm
Thickness
18 ga
Thickness
51.40mm (2.024")
Type
Air Conditioners
Voltage AC
200-250 V
Weight
84 lb
Weight
38 kg
Width
11.5 in
Width
292 mm
Package Dimensions (L x W x H)
29 IN x 18 IN x 14 IN
Package Dimensions (L x W x H)
73.66 cm x 45.72 cm x 35.56 cm
Package Weight (Imperial)
84.000 L
Package Weight (Metric)
38.102 kg
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How to Install the NHZ280426G400 Air Conditioner

This guide provides step-by-step instructions for installing the NHZ280426G400 air conditioner in a hazardous location enclosure.

Estimated time: 1h

Tools needed:

Screwdriver, Wrench or ratchet driver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Mounting gasket kit, Electrical wire connectors

  1. Inspect the air conditioner

    Check for any visible damage from shipping and verify functionality before installation.

  2. Prepare the installation site

    Ensure a minimum of 6 inches clearance on one side and 20 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, ensuring the mounting gasket is not damaged.

  4. Wire the air conditioner

    Connect the unit to a properly grounded power supply according to the nameplate specifications. Use copper conductors only.

  5. Adjust the controller settings

    Set the desired temperature on the controller and ensure the unit is in an upright position for at least 5 minutes before powering on.

  6. Test the air conditioner

    Energize the unit and verify that the evaporator blower starts running and the compressor operates correctly.

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.