nVent G280426G051 - SpectraCool Indoor G28, 4000BTU 230V, Brushed, SS304
nVent

G280426G051

UPC: 783510209360


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Overview

The nVent SpectraCool G28 Indoor Air Conditioner (SKU: G280426G051) delivers precision cooling for critical industrial enclosures with unmatched reliability and performance. Designed for demanding environments, this 4000 BTU unit operates on 230V power at 50/60 Hz, ensuring compatibility with global electrical standards while maintaining consistent thermal management. Constructed from premium 304 stainless steel, the SpectraCool G28 resists corrosion and withstands harsh conditions, making it ideal for applications where durability and clean aesthetics are non-negotiable. Its brushed stainless steel housing not only enhances corrosion resistance but also provides a professional appearance suitable for cleanrooms, laboratories, and industrial control rooms where visual appeal matters alongside functionality. Engineered for seamless integration, the SpectraCool G28 features a filterless design that eliminates maintenance-intensive components, reducing downtime and operational costs. This design innovation is particularly valuable in dusty or particulate-rich environments where clogged filters are a common failure point. The unit’s compact footprint and wall-mount or floor-standing installation options ensure flexibility in placement, whether mounted directly on enclosures or positioned nearby for optimal airflow distribution. With a focus on reliability, nVent has incorporated robust internal components and thermal protection mechanisms to prevent overheating, ensuring continuous operation even in high-temperature ambient conditions. The SpectraCool series from nVent is trusted by professionals across industries including manufacturing, telecommunications, data centers, and process control, where precise temperature control is essential for protecting sensitive electronics and maintaining operational integrity. Typical applications include cooling PLC enclosures, server racks, electrical panels, and control cabinets in facilities ranging from automotive plants to pharmaceutical production lines. The 4000 BTU capacity is tailored for medium-sized enclosures, providing sufficient cooling to maintain optimal operating temperatures without excessive energy consumption. Selecting the right enclosure cooling solution requires balancing capacity, environmental conditions, and installation constraints. The SpectraCool G28’s 230V single-phase power compatibility simplifies integration into existing electrical infrastructures, while its stainless steel construction ensures longevity in corrosive atmospheres common in chemical processing, food and beverage production, and marine applications. nVent’s reputation for engineering durable thermal management solutions is backed by decades of innovation in the industrial cooling space, making the SpectraCool series a preferred choice for engineers and facility managers seeking dependable performance with minimal maintenance overhead. For professionals evaluating enclosure cooling options, the SpectraCool G28 represents a cost-effective balance of performance, durability, and ease of installation. Its filterless design reduces ongoing maintenance costs, while the stainless steel housing provides long-term protection against environmental stressors. Whether deployed in a factory floor control panel or a remote telecom shelter, this unit delivers the reliability and precision required to safeguard critical equipment while maintaining energy efficiency.
  • 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
4.6/5.8 A
Application
Controls and Drives; Power Distribution; Corrosive Environments
Application
Controls and Drives;Corrosive Environments;Power Distribution
Btu Rating
4,600
Color
Unpainted
Corrosion Resistant
No
Depth
259 mm
Depth
10.18 in
Finish
Brushed #3
Frequency Rating
50/60 Hz
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
50 Hz
Height
28.59 in
Height
726 mm
Material
Stainless Steel 304
Max Current
5.8 A
Mounting
Side wall
NEMA Rating
4X Watertight, corrosion-resistant
Nominal Capacity Btu/h
4,900 Btu/h
Nominal Capacity Watts
1,435 W
Nominal Voltage
230 V
Number Of Phases
1
Operating Temperature
50-131
Operating Temperature
10-55
Operating Temperature
10-55 °C
Outdoor Installation
No
Phase
1
Phase
1 Ph
Product Family
SpectraCool
Protection Rating
NEMA Type 4X
Refrigerant
R407C
Remote Access Control
No
Thickness
51.40mm (2.024")
Thickness
20 ga
Type
Air Conditioners
Voltage AC
200-250 V
Voltage Rating
230 V
Weight
38 kg
Weight
95 lb
Width
17.01 in
Width
432 mm
Package Dimensions (L x W x H)
21 IN x 14 IN x 33 IN
Package Dimensions (L x W x H)
53.34 cm x 35.56 cm x 83.82 cm
Package Weight (Imperial)
95.000 L
Package Weight (Metric)
43.092 kg
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How to Install the G28 Air Conditioner

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

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors, Mounting gasket

  1. Inspect the air conditioner

    Check for any visible damage and ensure the air conditioner is in an upright position for at least five minutes before installation.

  2. Install the mounting gasket

    Apply the mounting gasket provided with the unit to the air conditioner to ensure a watertight seal.

  3. Mount the air conditioner

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

  4. Wire the air conditioner

    Refer to the nameplate for electrical requirements and connect the unit to a properly grounded power supply. Ensure the phase monitor light is illuminated.

  5. 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.

  6. Set the thermostat

    Adjust the thermostat to the desired cabinet temperature, following the Sequence of Operation for proper settings.

  7. Test the air conditioner

    Power on the unit and verify that the evaporator blower starts running. Allow it to operate for 5-10 minutes to ensure proper functionality.

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.