nVent CR290246G400 - ProAir Harsh Environment Indoor CR29, 2700BTU 460V 1PH, Lt Gray, Steel
nVent

CR290246G400

UPC: 783510226626


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Installation Instructions

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Overview

The nVent ProAir Harsh Environment Indoor CR29 Air Conditioner (SKU: CR290246G400) is a robust, corrosion-resistant cooling solution designed to protect critical components in demanding industrial environments. Engineered by nVent, a global leader in thermal management and electrical solutions, this unit delivers 2700BTU of cooling power at 460V single-phase input, making it ideal for harsh, corrosive, or high-moisture settings where standard air conditioners would fail. The CR29 model features a durable steel construction with a light gray finish, ensuring long-term durability while maintaining a professional appearance in industrial facilities. This air conditioner is specifically designed for the ambient side of enclosures, protecting sensitive electronics, control panels, and other components from overheating and environmental contaminants. Its corrosion-resistant design includes a smooth, easy-to-clean surface and optional hood to shield against splashed water, making it suitable for use in food processing plants, chemical facilities, marine applications, and outdoor enclosures. The unit’s hinged door and minimal fasteners enable quick and hassle-free service and maintenance access, reducing downtime and operational disruptions. Professionals in industries such as manufacturing, oil and gas, water treatment, and telecommunications rely on nVent’s ProAir series for reliable thermal management in challenging conditions. The CR29 model’s 2700BTU cooling capacity is optimized for medium-sized enclosures, ensuring precise temperature control to prevent equipment failure and extend the lifespan of critical components. Installation is straightforward, with compatibility for standard 460V single-phase power systems, and the unit’s compact design allows for flexible mounting options. nVent’s reputation for innovation and quality is reflected in the ProAir CR29, which combines rugged construction with advanced thermal management technology. Whether deployed in a coastal facility exposed to salt spray, a chemical plant with high humidity, or an outdoor telecom shelter, this air conditioner provides consistent performance and protection. Trusted by engineers and facility managers worldwide, the ProAir Harsh Environment Indoor CR29 is a cost-effective solution for maintaining optimal operating conditions in even the most adverse environments.
  • 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

Application
Corrosive Environments; Power Distribution; Controls and Drives
Application
Controls and Drives;Corrosive Environments;Power Distribution
Color
Light Gray
Color
Gray
Color Code
RAL 7035
Depth
219 mm
Depth
8.63 in
Finish
Powder Coated
Height
749 mm
Height
29.5 in
Material
Mild Steel
Max Current
1.9 A
Mechanical Advantage
Stainless steel optional
NEMA Rating
12 Indoor, dust-resistant
Nominal Capacity Btu/h
2,700 Btu/h
Nominal Capacity Watts
791 W
Nominal Voltage
230 V
Number Of Phases
1
Operating Temperature
-40-131
Operating Temperature
-40-55
Operating Temperature
-40-55 °C
Product Family
ProAir
Protection Rating
NEMA Type 12
Remote Access Control
No
Thickness
51.40mm (2.024")
Thickness
1.21 mm
Thickness
18 ga
Type
Air Conditioners
Voltage AC
200-250 V
Weight
130 lb
Weight
49 kg
Width
400 mm
Width
15.75 in
Package Dimensions (L x W x H)
18 IN x 11 IN x 30.5 IN
Package Dimensions (L x W x H)
45.72 cm x 27.94 cm x 77.47 cm
Package Weight (Imperial)
130.000 L
Package Weight (Metric)
58.968 kg
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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.