nVent G280446G050 - SpectraCool Indoor/Outdoor G28, 4000BTU 460V, Lt Gray, Steel
nVent

G280446G050

UPC: 783510210274


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Installation Instructions

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Overview

The nVent SpectraCool G28 (SKU: G280446G050) is a high-performance indoor/outdoor air conditioning unit engineered to deliver precise thermal management for critical enclosures in demanding industrial environments. Designed for reliability, efficiency, and ease of installation, this 4000BTU unit operates on a 460V, 50/60Hz, 3-phase power supply, making it ideal for facilities requiring robust cooling solutions that withstand harsh conditions. With its durable steel construction and light gray finish, the G28 combines durability with a clean aesthetic, ensuring seamless integration into both indoor and outdoor installations without compromising performance. Industrial-grade enclosure cooling is essential across a wide range of sectors, including manufacturing plants, data centers, telecommunications hubs, and utility substations, where overheating can lead to equipment failure, reduced operational efficiency, or costly downtime. The SpectraCool G28 addresses these challenges with a filterless design that minimizes maintenance while maximizing airflow and cooling efficiency. Its reliable operation is further supported by nVent’s reputation for engineering thermal management solutions trusted by professionals worldwide. Key features of the SpectraCool G28 include: - **High-capacity cooling (4000BTU)**: Delivers consistent temperature control to protect sensitive electronics and machinery from thermal stress. - **Versatile installation options**: Suitable for both indoor and outdoor environments, with robust construction to withstand dust, moisture, and temperature fluctuations. - **Energy-efficient operation**: Optimized for 460V 3-phase power, reducing energy consumption while maintaining peak performance. - **Low-maintenance design**: The filterless system eliminates the need for frequent filter replacements, reducing operational costs and downtime. - **Durable steel enclosure**: Light gray powder-coated finish provides corrosion resistance and a professional appearance. Professionals in industries such as oil and gas, power generation, and automation rely on nVent’s SpectraCool series for its proven reliability and engineering excellence. The G28 model, in particular, is a preferred choice for facilities where space constraints or environmental conditions demand a compact yet powerful cooling solution. Installation is streamlined with pre-engineered mounting options and compatibility with standard electrical configurations, ensuring quick deployment even in retrofit scenarios. nVent’s commitment to innovation and quality is evident in the SpectraCool G28, which reflects the company’s decades of expertise in thermal management solutions. Whether safeguarding critical control panels, servers, or industrial machinery, this unit provides the thermal stability required to maintain operational integrity in even the most challenging environments. For facilities prioritizing long-term reliability, energy efficiency, and minimal maintenance, the SpectraCool G28 stands as a trusted solution in the nVent portfolio.
  • Attractive industrial design with minimal use of visible fasteners
  • Level 1 Protection Includes: Protective coatings only applied to copper tubing and coils on the condenser (exterior facing) side as well as thermostat coatings
  • Energy-efficient rotary compressor on most models
  • Level 2 Protection Include: Everything that was coated in Level 1, plus protective coatings applied to the evaporator (interior facing ) side and an additional wrap around the thermostat
  • Cleanable, reusable aluminum mesh filter included to protect coils for maximum cooling performance in dirty environments
  • R407C, R513A or R134a refrigerants
  • 115, 230 and 400/460 VAC 3-phase power input on most models
  • Reliable mechanical thermostat on enclosure side of the unit
  • All G-series come standard with two separate thermostats for cooling and heating when a heater is equipped
  • Operating temperature range from -40 F/-40 C to 131 F/55 C

Specifications

Ambient Temperature
40 Deg C
Ambient Temperature
50-131 °F
Amperage Rating
1.3/1.4 A
Application
Controls and Drives;Power Distribution
Btu Rating
4,600
Color
Gray
Color
Light Gray
Color Code
RAL 7035
Corrosion Resistant
No
Depth
10.18 in
Depth
259 mm
Finish
Powder Coated
Frequency Rating
50/60 Hz
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
50 Hz
Height
726 mm
Height
28.59 in
Material
Mild Steel
Max Current
1.9 A
Mounting
Side wall
NEMA Rating
4 Watertight
Nominal Capacity Btu/h
4,900 Btu/h
Nominal Capacity Watts
1,435 W
Nominal Voltage
460 V
Number Of Phases
3
Operating Temperature
50-131
Operating Temperature
10-55
Operating Temperature
10-55 °C
Outdoor Installation
Yes
Phase
3 Ph
Phase
3
Product Family
SpectraCool
Protection Rating
NEMA Type 4
Refrigerant
R513A
Remote Access Control
No
Thickness
20 ga
Thickness
51.40mm (2.024")
Type
Air Conditioners
Voltage AC
400-460 V
Voltage Rating
460 V
Weight
97 lb
Weight
38 kg
Width
432 mm
Width
17.01 in
Package Dimensions (L x W x H)
21.25 IN x 14 IN x 32.5 IN
Package Dimensions (L x W x H)
53.975 cm x 35.56 cm x 82.55 cm
Package Weight (Imperial)
97.000 L
Package Weight (Metric)
43.999 kg
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How to Install the G28 Air Conditioner

This guide provides step-by-step instructions for installing and setting up the G28 Air Conditioner, ensuring proper functionality and safety.

Estimated time: 1h

Tools needed:

Screwdriver, Wrench or ratchet driver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Mounting gasket kit, Electrical wiring

  1. Inspect the air conditioner

    Check the air conditioner for any visible damage and ensure it is functioning correctly before installation.

  2. Install mounting gaskets

    Apply the mounting gaskets provided with the unit to ensure a watertight seal between the air conditioner and the enclosure.

  3. Mount the air conditioner

    Securely mount the air conditioner to the enclosure, ensuring not to damage the gaskets. Start bolts by hand to avoid cross-threading.

  4. Allow unit to stabilize

    Keep the air conditioner upright for at least five minutes before powering it on to prevent damage.

  5. Wire the air conditioner

    Connect the air conditioner to a properly grounded power supply, ensuring the electrical circuit is fused appropriately.

  6. Verify electrical phasing

    Check that the phase monitor light is illuminated after applying power to confirm correct electrical phasing.

  7. Connect the thermostat

    If required, wire the remote thermostat outputs to the appropriate terminals on the 24 VAC terminal strip according to the wiring diagram.

  8. Set thermostat parameters

    Adjust the thermostat to the desired cabinet temperature, following the guidelines in the Sequence of Operation.

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.