nVent CR290446G400 - ProAir Harsh Environment Indoor CR29, 4000BTU 460V 1PH, Lt Gray, Steel
nVent

CR290446G400

UPC: 783510223540


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Installation Instructions

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Overview

The nVent ProAir Harsh Environment Indoor CR29 Air Conditioner (SKU: CR290446G400) is engineered to provide robust thermal management for critical electrical enclosures and components operating in demanding, corrosive industrial environments. Designed for indoor applications where ambient conditions pose a significant threat to equipment reliability, this unit ensures optimal operating temperatures, preventing costly downtime and extending the lifespan of sensitive electronics. Its specialized construction actively protects components from the corrosive effects present on the ambient side of the air conditioner, a common challenge in chemical processing, wastewater treatment, and offshore facilities. The CR29 series is distinguished by its focus on serviceability and durability. Featuring a minimal number of fasteners and a cleverly designed hinged door, maintenance and access for routine service are streamlined, reducing labor costs and minimizing operational interruptions. This user-centric design allows technicians to quickly perform necessary checks and cleaning, ensuring the unit operates at peak efficiency. The smooth exterior surface, coupled with an optional hood, offers superior protection against direct splashes of water and other contaminants, further enhancing its suitability for washdown areas or environments prone to liquid ingress. Constructed from durable steel with a light gray finish, this unit is built to withstand the rigors of industrial settings. The 4000 BTU cooling capacity is suitable for a wide range of enclosure sizes, while the 460V, 1-phase power requirement ensures compatibility with standard industrial power grids. The UNSPSC code 40101701 categorizes this product under air conditioning units, highlighting its primary function in environmental control. Key benefits and features include: * **Corrosion Resistance:** Specifically designed to protect against ambient-side corrosive elements. * **Enhanced Serviceability:** Few fasteners and a hinged door for quick and easy maintenance access. * **Liquid Ingress Protection:** Smooth surface and optional hood provide defense against water splashes. * **Durable Construction:** Robust steel build for long-term reliability in harsh conditions. * **Efficient Cooling:** 4000 BTU capacity to maintain optimal internal enclosure temperatures. When selecting an air conditioner for harsh environments, factors such as ingress protection (IP) ratings, material compatibility with corrosive agents, and ease of maintenance are paramount. The nVent ProAir CR29 series addresses these critical considerations, offering a reliable solution manufactured in the USA. This commitment to quality and performance makes nVent a trusted partner for industrial thermal management needs, ensuring your critical infrastructure remains protected and operational, regardless of the surrounding environmental challenges.
  • 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
Controls and Drives;Corrosive Environments;Power Distribution
Application
Power Distribution; Corrosive Environments; Controls and Drives
Color
Lt Gray
Color
Light Gray
Color
Gray
Color Code
RAL 7035
Depth
8.63 in
Depth
219 mm
Finish
Powder Coated
Height
29.5 in
Height
749 mm
Material
Mild Steel
Material
Steel
Max Current
2.5 A
Mechanical Advantage
Stainless steel optional
NEMA Rating
12 Indoor, dust-resistant
Nominal Capacity Btu/h
4,000 Btu/h
Nominal Capacity Watts
1,172 W
Nominal Voltage
460 V
Number Of Phases
1
Operating Temperature
-40-131
Operating Temperature
-40-55
Operating Temperature
-40-55 °C
Poles
1PH
Product Family
ProAir
Protection Rating
NEMA Type 12
Remote Access Control
No
Series
ProAir Harsh Environment Indoor CR29
Size
4000BTU
Thickness
1.21 mm
Thickness
18 ga
Thickness
51.40mm (2.024")
Type
Air Conditioners
Voltage AC
400-460 V
Voltage Rating
460 V
Voltage Rating
400 - 460 VAC
Weight
58 kg
Weight
113 lb
Width
400 mm
Width
15.75 in
Package Dimensions (L x W x H)
17.75 IN x 11 IN x 30.5 IN
Package Dimensions (L x W x H)
45.085 cm x 27.94 cm x 77.47 cm
Package Weight (Imperial)
113.000 L
Package Weight (Metric)
51.257 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.