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

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

UPC: 783510322090


Documents & Media
Installation Instructions

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The nVent ProAir Harsh Environment Indoor/Outdoor Air Conditioner (SKU: CR290426G054) delivers 4000BTU of cooling for medium-sized enclosures in corrosive, dusty, or wet environments. Built with 304 stainless steel, it resists salt spray, chemicals, and high humidity common in marine, oil & gas, chemical processing, and outdoor telecom applications. The unit operates reliably from -40°F to 131°F (-40°C to 55°C) with optional low-ambient package, ensuring consistent performance in extreme conditions. The smooth, seamless surface and optional hood protect against splashed water and direct sunlight. A reusable aluminum mesh filter safeguards coils for maximum cooling efficiency, while high-performance fans and blowers maintain thermal management in densely packed enclosures. Compact dimensions (29.5in H x 15.75in W x 8.63in D) and easy-mount flanges simplify installation for retrofits or new builds. The 230V, single-phase unit draws 6.7A/6.6A (50/60Hz) and includes a mechanical thermostat. Typical applications include control panels in chemical plants, outdoor telecom shelters, marine equipment rooms, food processing environments, and solar installations.
  • 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
  • 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
  • Easy-mount flanges for simple installation
  • Every unit functionally tested before shipping

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
Color
Brushed stainless steel
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
Ip Rating
Type 4X
Material
Stainless Steel 304
Material
SS304
Max Current
4.9 A
Mechanical Advantage
Stainless steel optional
Model
Surface Mounted
Nema Rating
Type 4X
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 °F
Operating Temperature
-40-55 °C
Operating Temperature
131 deg F
Operating Temperature
-40-55
Outdoor Installation
Yes
Power
1172 W
Product Family
ProAir
Protection Rating
NEMA Type 4X
Refrigerant
R513A
Remote Access Control
No
Series
ProAir
Size
4000BTU
Thickness
51.40mm (2.024")
Thickness
1.21 mm
Thickness
18 ga
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
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How to Install the CR290426G054 Air Conditioner

Installation guide for mounting and wiring the CR290426G054 air conditioner into an enclosure.

Estimated time: 45m

Tools needed:

Screwdriver, Wrench, Ratchet driver

Supplies needed:

Mounting gasket kit, Mounting bolts, Washers

  1. Inspect and Test Functionality

    Inspect the air conditioner for any damage. Test its functionality before mounting by connecting the power cord to a properly grounded power supply. Ensure the unit has been upright for at least 5 minutes if it was previously in a horizontal position. Do not operate the unit while it is horizontal or on its side. Refer to the nameplate for electrical requirements and ensure the circuit ampacity is at least 125% of the design data. Operate for 5-10 minutes, checking for excessive noise or vibration. The condenser blower, evaporator blower, and compressor should be running, and condenser air should be warmer than room temperature within minutes.

  2. Prepare Enclosure Openings

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

  3. Install Gasket

    Apply the provided gasket from the mounting gasket kit to the rear of the air conditioner. Refer to the 'Mounting Gasket Kit' section for proper location.

  4. Mount Air Conditioner

    Mount the air conditioner onto the enclosure using the provided mounting bolts and washers. Start the bolts by hand to avoid cross-threading, then tighten with a wrench or ratchet driver. Ensure the unit remains upright during operation.

  5. Connect Power

    Refer to the top of the nameplate for electrical requirements. Connect the power cord to a properly grounded power supply. Use of an extension cord is not recommended. The electrical circuit should be fused with a slow blow or HACR circuit breaker. For specific electrical requirements, consult the nameplate or datasheet.

  6. Adjust Temperature Controller (if applicable)

    If the unit is equipped with an automatic temperature controller, it is factory preset. For Level I controllers, disconnect power, loosen the front panel screw, locate the controller, and adjust the set point by turning the screw slot (counter-clockwise to increase, clockwise to decrease). Close the panel and restore power. For Level II and III controllers, refer to the separate programming manual if custom adjustments are needed.

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.