Mars Air Systems

Mars Air Systems N284-2UH-OB Unheated Air Curtain for 84-Inch Door, Two 1/2 HP Motors

SKU: N284-2UH-OB
$2,116.80
/each
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N284-2UH-OB is an unheated N2 Series air curtain sized for an 84-inch opening. It uses two 1/2 HP continuous-duty TEAO motors and a galvanized steel cabinet with an Obsidian Black powder coat finish.

The unit is specified for 460 V, 60 Hz, three-phase operation and is ETL-certified to conform to ANSI/NSF 37 standards for customer entrances up to 7 feet.

  • 84-inch nozzle and overall length
  • Adjustable air directional vanes with a 40-degree front-to-back sweep
  • 5-year parts warranty

Unheated operation

This N2 Series air curtain is specified as unheated.

84-inch model length

The mechanical data lists an 84-inch nozzle length and 84-inch overall length for N284-2UH-OB.

Two 1/2 HP motors

The unit uses two continuous-duty Totally Enclosed Air Over motors rated at 1/2 HP each.

460 V three-phase electrical configuration

The exact model is specified for 460 V, 60 Hz, three-phase operation.

Galvanized steel cabinet

The cabinet is galvanized steel with an Obsidian Black powder coat finish.

Adjustable directional vanes

Air directional vanes provide a 40-degree front-to-back sweep.

Sanitation standard compliance

The unit is ETL-certified to conform to ANSI/NSF 37 standards for customer entrances up to 7 feet.

Parts warranty

The N2 series documentation specifies a 5-year parts warranty.

Series N2
Type Unheated air curtain
Nozzle length 84 in
Overall length 84 in
Maximum opening height 7 ft
Number of motors 2
Horsepower per motor 1/2 hp
Motor type Continuous-duty TEAO, NEMA 1
Voltage 460 V
Frequency 60 Hz
Phase 3-phase
Full-load amperage 1.6 A
Cabinet material Galvanized steel
Finish Obsidian Black powder coat
Directional vane adjustment 40-degree sweep front to back
Maximum core velocity at nozzle 4,865 fpm
Average velocity 1,945 fpm
Air volume 2,836 cfm
Velocity uniformity 87%
Power rating 1,012 W
Standards compliance ANSI/NSF 37, UL 507, CSA 22.2

Certifications & Compliance

Certified badge of ETL Listed
ETL Listed

Warranty & Protection

5-year parts warranty.

Documents

PDF Cutsheet PDF Download PDF N2 unheated submittals PDF Download PDF Marketing sheet PDF Download PDF Collateral PDF Download PDF Collateral refrigeration PDF Download PDF Video PDF Download

Frequently Asked Questions

No. The N284-2UH-OB is an unheated air curtain.
It has two continuous-duty 1/2 HP TEAO motors.
The exact model is specified for 460 V, 60 Hz, three-phase operation, with a listed full-load amperage of 1.6 A.
The mechanical data lists an 84-inch nozzle length and 84-inch overall length. The N2 documentation identifies customer-entrance use up to 7 feet.
It has an Obsidian Black powder coat finish on a galvanized steel cabinet.
The mechanical data lists a weight of 125 lb.
The N2 series documentation specifies a 5-year parts warranty.
The product is identified as ETL-certified and the N2 documentation identifies AMCA certification. The documentation also specifies conformity to ANSI/NSF 37, UL 507 and CSA 22.2 standards.

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