Air Curtain 36" Automatic On/Off Control As Door Open/Close (Plunger Type)
MARS-N236-1UA-TS
Product overview
The Mars N236-1UA-TS is a 36-inch industrial unheated air curtain from the N2 sanitation series. It helps limit flying-insect entry while a foodservice entrance is open. One ½ HP motor supplies the air stream, with a maximum sanitation mounting height of 7 feet.
The Titanium Silver unit uses a 115 V, single-phase, 60 Hz supply. Plunger-type door control provides automatic operation when the door opens and closes, with the switch fitted and wired for the installation.
- 36-inch doorway coverage; 7-foot maximum sanitation height
- One ½ HP motor; 115 V single-phase supply
- Door-linked automatic on/off control
Specifications
| Manufacturer | Mars Air Systems |
|---|---|
| Model / manufacturer part number | N236-1UA-TS |
| Series | N2 sanitation customer entrance |
| Type | Unheated air curtain |
| Door opening / nozzle width | 36 inches |
| Maximum sanitation mounting height | 7 feet |
| Motor quantity and rating | 1 motor, ½ HP |
| Motor type | Continuous-duty, totally enclosed air over (TEAO) |
| Electrical supply | 115 V, single phase, 60 Hz |
| Full-load current | 5.1 A |
| Finish | Titanium Silver (TS) |
| Overall dimensions (W × D × H) | 36 × 12¾ × 10⅝ inches |
| Air volume | 1,379 CFM |
| Average outlet velocity | 2,206 FPM |
| Outlet velocity uniformity | 84% |
| Laboratory power rating | 500 W at free delivery |
| Sound level | 66 dBA, one-motor unit at 10 feet in a free field |
| Air-direction adjustment | 40° front-to-back vane sweep |
| Electrical connection | Field wiring to internal junction box |
| Service clearances | 2 inches at each side; 6 inches above; 18 inches in front |
| Door control | Automatic on/off with a properly installed plunger-type door switch |
| Recommended switch | Mars 99-014 combination plunger/roller switch |
| Sanitation certification | ETL certified to ANSI/NSF 37 |
| Electrical safety certification | cETLus to UL 507 and CSA 22.2 |
| Air-performance certification | AMCA 211; certified free-delivery air-performance and power ratings |
Airflow, velocity, uniformity and 500 W power figures are laboratory ratings at free delivery. Use the 5.1 A full-load rating, equipment nameplate and approved electrical design for circuit selection. Confirm the approved submittal dimensions before final mounting.
Doorway coverage and control
Center the air curtain above the doorway so its discharge covers the full opening. Keep intake and discharge clear, and have the installer aim the adjustable vanes for the entrance conditions. The unheated air stream provides separation without an electric heating element.
Mars recommends the 99-014 combination plunger/roller switch for door-open/on and door-closed/off control. It is a field-installed, field-wired accessory; confirm the switch and mounting components supplied with the order before scheduling installation.
Installation planning
- Use qualified installation and electrical personnel, following the supplied wiring diagram and applicable codes.
- Cover the full doorway width and keep sanitation mounting height at or below 7 feet.
- Allow 2 inches of service space at each side, 6 inches above and 18 inches in front.
- Connect the supply inside the internal junction box. Select mounting hardware and circuit protection for the site.
Cleaning and care
Keep the grille, blower wheels and motor area free of dust, grease and debris. Under normal conditions, plan a thorough cleaning about every six months; adjust the interval to the location and operating hours.
Before cleaning or servicing, qualified personnel must disconnect, lock and tag power and allow the motor to cool. Clean the housing with a damp cloth and mild cleaner. Do not submerge or hose down the motor. The motor is permanently lubricated and needs no additional lubrication. Follow the manual for access and reassembly.
Product documents
Air Curtain 36" Automatic On/Off Control As Door Open/Close (Plunger Type) images
