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nVent CR290426G054 - ProAir Harsh Environment Indoor/Outdoor 4X CR29, 4000BTU 230V, Brushed, SS304
nVent

CR290426G054

UPC: 783510322090


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Installation Instructions

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Overview

The nVent ProAir Harsh Environment Indoor/Outdoor Air Conditioner (SKU: CR290426G054) is a robust, corrosion-resistant cooling solution engineered for demanding industrial and commercial applications where equipment protection is critical. Designed to operate reliably in harsh conditions, this 4000BTU unit delivers precise temperature control for sensitive electronics, control panels, and enclosures exposed to corrosive atmospheres, dust, or moisture. With a 230V power supply and compatibility with 50/60Hz systems, the ProAir ensures consistent performance across global markets while minimizing downtime and maintenance costs. Engineered for durability, the ProAir features a stainless steel 304 (SS304) construction that resists corrosion from salt spray, chemicals, and high humidity—common in marine, oil & gas, chemical processing, and outdoor telecommunications environments. The unit’s smooth, seamless surface design eliminates crevices where contaminants can accumulate, while the optional hood provides additional protection against splashed water and direct sunlight. Unlike conventional air conditioners, the ProAir is specifically built for the harsh ambient side of enclosures, ensuring that internal components remain cool and operational even in extreme external conditions. Installation and maintenance are streamlined with the ProAir’s innovative design. The hinged door allows for quick access to internal components, reducing service time by up to 50% compared to traditional units with multiple fasteners. This feature is particularly valuable in industrial settings where minimizing downtime is essential. The unit’s compact footprint and versatile mounting options make it ideal for retrofitting existing systems or integrating into new installations, whether indoors or outdoors. The ProAir is part of nVent’s ProAir line, a trusted brand in thermal management solutions for industrial applications. nVent’s reputation for engineering high-performance, reliable products ensures that the ProAir meets stringent industry standards, including UL and CE certifications. Typical applications include: - Control panels and electrical enclosures in chemical plants - Outdoor telecommunications shelters - Marine and offshore equipment rooms - Food processing and pharmaceutical environments - Solar power and renewable energy installations When selecting an air conditioner for harsh environments, professionals prioritize corrosion resistance, ease of maintenance, and energy efficiency. The ProAir excels in all three areas, offering a balance of performance and longevity that reduces total cost of ownership. Its 4000BTU cooling capacity is optimized for medium-sized enclosures, providing sufficient thermal management without excessive power consumption. The unit’s 6.7/6.6A current draw (50/60Hz) ensures compatibility with standard industrial power grids while maintaining energy efficiency. For engineers and facility managers tasked with protecting critical equipment, the nVent ProAir Harsh Environment Air Conditioner delivers unmatched reliability in the most challenging conditions. Its combination of stainless steel construction, quick-service design, and nVent’s proven engineering makes it a top choice for industries where failure is not an option.
  • Easy maintenance: hinged front cover allows quick access to all components; condenser coil can be cleaned while unit is still mounted to the cabinet
  • Smooth surface with minimal use of visible fasteners
  • Cleanable reusable aluminum mesh filter protects coils for maximum cooling performance
  • R134a, R513A or R407C Refrigerant
  • Models for 115, 230 and 460 single phase VAC power input
  • Operating temperature range from -40 F/-40 C to 131 F/55 C (with optional low-ambient package)
  • Reliable mechanical thermostat located behind the filter of the unit
  • Robust reciprocating compressor
  • Low-carbon mild-steel sheet-metal cover for rugged factory and outdoor environments
  • High-performance fans and blowers designed for densely packed enclosures

Specifications

Amperage Rating
4.9 A
Application
Controls and Drives;Corrosive Environments;Hygienic Environments;Power Distribution
Application
Power Distribution; Hygienic Environments; Controls and Drives; Corrosive Environments
Btu Rating
4,000
Color
Unpainted
Color
Brushed
Color
Gray
Current Rating
6.7/6.6 A
Depth
8.63 in
Depth
219 mm
Finish
Brushed #3
Frequency
50/60 Hz
Frequency Rating
50/60 Hz
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
50 Hz
Height
29.5 in
Height
749 mm
Housing Material
Stainless Steel
Material
SS304
Material
Stainless Steel 304
Max Current
4.9 A
Mechanical Advantage
Stainless steel optional
Model
Surface Mounted
NEMA Rating
4X Watertight, corrosion-resistant
Nominal Capacity Btu/h
4,000 Btu/h
Nominal Capacity Watts
1,172 W
Nominal Voltage
230 V
Number Of Phases
1
Operating Temperature
-40-131
Operating Temperature
-40-55
Operating Temperature
-40-55 °C
Operating Temperature
131 deg F
Power
1172 W
Product Family
ProAir
Protection Rating
NEMA Type 4X
Remote Access Control
No
Series
ProAir
Size
4000BTU
Thickness
1.21 mm
Thickness
18 ga
Thickness
51.40mm (2.024")
Type
Air Conditioners
Voltage AC
200-250 V
Voltage Rating
230 VAC
Voltage Rating
230 V
Weight
54 kg
Weight
95 lb
Width
400 mm
Width
15.75 in
Package Dimensions (L x W x H)
19.25 IN x 10.75 IN x 30.5 IN
Package Dimensions (L x W x H)
48.895 cm x 27.305 cm x 77.47 cm
Package Weight (Imperial)
95.000 L
Package Weight (Metric)
43.092 kg
ProAir Harsh Environment Outdoor with Cntr 3R CR29, 4000BTU 230V, Brushed, SS304

CR290426G017

ProAir Harsh Environment Outdoor with Cntr 3R CR29, 4000BTU 230V, Brushed, SS304
AC Unit 4,000 BTU/H 230 V - NEMA 4x - 304 SS

DTS3181A230N4SS

AC Unit 4,000 BTU/H 230 V - NEMA 4x - 304 SS
DTS 3081 230V 50/60Hz SS304

13382341300

DTS 3081 230V 50/60Hz SS304
AC, Side Mtg 115v 60Hz, Bulletin MCL (Air Conditioners - CR43-0816 --H1), Size/Dims: 8500 BTU, Material: SS Type 304, Finish: ex2

CR430816036

AC, Side Mtg 115v 60Hz, Bulletin MCL (Air Conditioners - CR43-0816 --H1), Size/Dims: 8500 BTU, Material: SS Type 304, Finish: ex2
ProAir Harsh Environment Indoor/Outdoor 4X CR23, 1600BTU 115V, Brushed, SS304

CR230216G015

ProAir Harsh Environment Indoor/Outdoor 4X CR23, 1600BTU 115V, Brushed, SS304
ProAir Harsh Environment Indoor/Outdoor 4X CR23, 1600BTU 230V, Brushed, SS304

CR230226G014

ProAir Harsh Environment Indoor/Outdoor 4X CR23, 1600BTU 230V, Brushed, SS304
ProAir Harsh Environment Indoor/Outdoor 4X CR29, 2700BTU 115V, Brushed, SS304

CR290216G036

ProAir Harsh Environment Indoor/Outdoor 4X CR29, 2700BTU 115V, Brushed, SS304
AC, Side Mtg 230v 60Hz, Bulletin MCL (Air Conditioners - CR43-0826 --H), Size/Dims: 8500 BTU, Material: SS Type 304, Finish: ex2

CR430826038

AC, Side Mtg 230v 60Hz, Bulletin MCL (Air Conditioners - CR43-0826 --H), Size/Dims: 8500 BTU, Material: SS Type 304, Finish: ex2

How to Install the CR290426G017 Air Conditioner

This guide provides step-by-step instructions for installing and configuring the CR290426G017 air conditioner, ensuring proper functionality and safety.

Estimated time: 45m

Tools needed:

Screwdriver, Wrench, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Gasket kit, Terminal connectors

  1. Inspect the air conditioner

    Check for any visible damage and ensure the unit is functioning properly before installation. Do not operate the unit if it has been in a horizontal position; allow it to stand upright for at least five minutes.

  2. Prepare the mounting area

    Using the cutout dimensions provided in the manual, prepare the air 'IN' and 'OUT' openings and the mounting bolt hole pattern on the enclosure.

  3. Install gaskets

    Apply the gasket kit to the rear of the air conditioner to ensure a proper seal before mounting.

  4. Mount the air conditioner

    Secure the air conditioner to the enclosure using the provided mounting bolts and washers. Start bolts by hand to avoid cross-threading, then tighten with a wrench.

  5. Connect the power supply

    Refer to the nameplate for electrical requirements and connect the power cord to a properly grounded power supply. Ensure the circuit is fused with a slow blow or HACR circuit breaker.

  6. Test the air conditioner

    Before finalizing the installation, power on the unit and allow it to run for 5 to 10 minutes. Check for excessive noise or vibration and ensure the compressor and blowers are operating correctly.

  7. Adjust the temperature controller

    If necessary, adjust the Level I temperature controller located inside the air conditioner by turning the adjustment screw to set the desired temperature.

  8. Finalize installation

    Close the front panel of the air conditioner and secure it with the front panel screw. Restore power to the unit for 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.