Mars PH12 Electric Heated Series Air Curtain
Submittal Package & Manual
Atmosphere is everything
Mars Air Systems, LLC
14716 S. Broadway, Gardena, CA 90248
Ph: (310) 532-1555 | Fax: (310) 532-3030
www.marsair.com
Product Overview
The Mars PH12 Electric Heated Series Air Curtain is designed to cover door openings, providing temperature control, environmental separation, and flying insect control when doors are opened. It is suitable for commercial and industrial applications.
Applications:
- Environmental Separation: Up to 16'
- Insect Control: Up to 14'
Units are typically suspended from the ceiling or wall-mounted. They are ETL Listed for the US and Canada. Heated units must be mounted on the inside or protected side of the opening.
Key Features & Specifications
Model Series: Phantom 12 Electric Heated
Available Lengths: 36" – 144"
Mechanical Data Highlights:
| Model Number | Nozzle Length (in) | Overall Length (in) | Depth (in) | Height (in) | Motor (hp) | Weight (lbs) | Max Core Velocity (fpm) | Avg Velocity (fpm) | Volume (cfm) | Uniformity (%) | Power Rating (watts) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PH1248-1E**-PW | 48 | 48 1/8 | 26 | 17 | 1 | 100 | 5203 | 3164 | 2373 | 91 | 1190 |
| PH1260-1E**-PW | 60 | 60 1/8 | 26 | 17 | 1 | 105 | 5055 | 3539 | 2654 | 90 | 1290 |
| PH1272-2E**-PW | 72 | 72 1/8 | 26 | 17 | Two 1 | 170 | 5500 | 2789 | 4184 | 80 | 2180 |
| PH1284-2E**-PW | 84 | 84 1/4 | 26 | 17 | Two 1 | 190 | 5250 | 3089 | 4634 | 89 | 2190 |
| PH1296-2E**-PW | 96 | 96 1/4 | 26 | 17 | Two 1 | 195 | 5203 | 3164 | 4746 | 91 | 2380 |
| PH12120-2E**-PW | 120 | 120 1/4 | 26 | 17 | Two 1 | 210 | 5055 | 3539 | 5308 | 90 | 2580 |
| PH12144-4E**-PW | 144 | 144 1/4 | 26 | 17 | Four 1 | 340 | 5500 | 2789 | 8368 | 91 | 4360 |
Diagram shows a side view of the PH12 unit with dimensions and airflow direction (Intake Air, Discharge Air).
Electrical Data Highlights:
Units are available in various voltages (115V, 208/230V, 460V, 575V) and phases (Single/Three Phase), with different heater wattages and corresponding temperature rises.
Features:
- 1 HP Continuous Duty TEAO Motors
- Recessed mounting for invisible installation
- ETL Certified to UL 2021 (US) and CSA 22.2 (Canada) Standards
- (4) 3/8" top mounting holes
- Durable aluminum construction
- Cleanable polyester filters standard
- Adjustable air directional vanes (40° sweep)
- Standard color: Pearl White
- 18-month parts warranty
- Freight included (FOB Continental USA)
Sound Levels: 70 dBA (1 motor), 73 dBA (2 motors), 75 dBA (3-4 motors) at 10 feet.
Wiring Diagrams
The document includes detailed wiring diagrams for both single-phase and three-phase electric heated air curtains. These diagrams illustrate the connections for motors, heaters, contactors, fuses, switches, and terminal blocks, along with switch functions for fan and heat control.
Diagrams show electrical schematics with component labels like MTR (Motor), FU (Fuse), CR (Contactor), HTR (Heater), SW (Switch), and terminal blocks.
Thermostats
Mars offers various thermostat models for controlling the air curtains, including line voltage (801, 802) and low voltage (9200H, IC20-101, RS4110) options. Features include automatic control, remote mounting, and adjustable temperature ranges (50°F to 90°F).
Thermostat Part Numbers & Applications:
- 99-063: 801, Line Voltage, Single Stage (LPV2, WM/BD Electric & Hot Water/Steam)
- 99-064: 802, Line Voltage, Two Stage (LPV2 Electric & Hot Water/Steam)
- 99-264: 9200H, 24 Volt, Analog (STD2, HV2, EP2, PH & All Gas Fired)
- 99-277: IC20-101, 24 Volt, Analog (LPV2 Electric Low Voltage)
- 99-263: RS4110, 24 Volt, Digital (STD2, HV2, EP2, PH, WM/BD & All Gas Fired)
Options include 2-stage thermostats, digital programmable thermostats, and factory-wired units.
Accessory Installation
Door Limit & Magnetic Reed Switches: Mars offers switches with NEMA 1, 4X, and 7 ratings for automatic on/off control based on door position. Installation diagrams illustrate various switch types and mounting methods for different door styles (swing, sliding, roll-up).
Diagrams show typical installations of door limit switches and magnetic reed switches on doors and frames, including wiring to junction boxes.
Bracket Installation: Various mounting brackets are available, including Side Extension Plates, Adjustable Mounting Brackets, and Extended Wall Mounting Brackets, to accommodate different doorway widths and door types (e.g., roll-up doors, sectional doors). Top mounting brackets are also available for overhead installations.
Diagrams illustrate bracket installations for different door types and mounting scenarios, showing components like extension plates, adjustable brackets, and threaded rods.
Installation, Operation, and Maintenance Manual
General Safety: Emphasizes using the product as intended, ensuring qualified personnel perform installation, and adhering to all safety precautions to prevent electric shock, injury from moving parts, or other hazards. Always disconnect power before servicing.
Receiving & Inspection: Check for shipping damage upon delivery and notify the carrier.
Unpacking: Verify all parts and components.
Installation:
- Mounting: Typically overhead above doors, flush with the ceiling. Extended wall mounting brackets are available.
- Tandem units require specific spacing (max 6" between units).
- Wiring must be internal and per NEC/local codes.
- Ensure proper motor rotation for three-phase units.
- Adjust discharge nozzle vanes to 10-15° outward.
Start-Up: Perform checks on installation security, wiring, voltage, components, air supply, filters, and then power on. For heated units, follow specific supplement instructions. Verify blower wheel rotation for three-phase units.
Maintenance: Routine cleaning (recommended every six months) is crucial for performance. Disconnect power before cleaning. Use a damp cloth with mild soap or degreaser. Motors are permanently lubricated.
Special Applications: Considerations for outdoor and freezer/cooler installations are noted. VFDs are recommended for freezer applications.
Troubleshooting Guide
Provides a comprehensive table listing common problems, their potential causes, and solutions. Issues covered include:
- No air blowing
- Motor running, fans not spinning
- Electrical controls not working
- Unit will not turn off
- Low air flow
- Excessive air velocity
- Air not hitting the floor
- Uneven air, noise, or vibration
Includes detailed motor resistance readings for diagnosing motor issues.
Warranty
Mars offers a standard five-year limited parts warranty for unheated units and an 18-month limited parts warranty for heated units. The warranty covers defects in materials and workmanship but excludes labor, transportation, misuse, accident, modification, improper installation, and other specific conditions. Mars provides free replacement of defective parts.
Heated Products Supplement
Details specific requirements for Electrically Heated, Steam Heated, and Hot Water Heated products. Covers mounting, wiring, thermostat integration, heating coils, and control panels. Also outlines requirements for Gas Heated Products, including transition sections and furnace installation.
CSI Specification
A detailed specification document (Section 23 34 33 - AIR CURTAINS) covering:
- Part 1 General: Section Includes, Related Sections, References (ASTM, UL, AHRI, AMCA, NEC, LEED), Submittals.
- Part 2 Products: Manufacturer, Air Curtain Assemblies (motor, fans, housing, materials, finishes, air velocity, sound levels), Components (Electric, Steam, Hot Water Heaters, Motor Control Panels, Door-Activated Limit Switches).
- Part 3 Execution: Examination, Installation, Field Quality Control, Cleaning, Protection, Schedules.
Reference Links
Provides links to the Mars Air Systems website, document library for submittals and brochures, and the specific CSI Specification document.
