Standard 2 Series (STD2)

The Standard 2 Series by Mars Air Doors is our most diverse selling air curtains at Air Door Distributors. The Standard 2 Series is rated at 66 dBA for a 36” unit. Standard 2 Series is rated for insect control up to 10 feet high and environmental control up to 12 feet high. The Standard 2 Series is only 10 5/8” in height X 12 ¾” deep and in lengths from 36” to 144”. The Standard 2 Series is a little louder than the LoPro Series but its ½ HP motor(s) will provide greater insect control and environmental separation. Units 36" to 48" long feature a single ½ HP motor, units 60" to 96" feature a 2-motor ½ HP design and units 108" - 144" have 3 motor ½ HP design. ”. Available in Ambient, Electric, Steam and Hot Water configurations.  The modern and sleek design will fit into any décor in many demanding applications. Its durable light weight design is finished in a powder coated paint to withstand years of worry free operation. Standard production color is black or white but available in sliver, custom colors and 304 stainless steel. 

The Standard 2 Series is great for Customer Entry, Receiving & Loading Dock, Restaurants & Food Service, Retail & Office, Convenience & Grocery, Healthcare & Hospitals, Manufacturing & Distribution, Pest Control and Transportation & Terminals.

Standard 2 Series (STD2) Unheated

standard 2 series unheated mars air curtains

Standard 2 Unheated Notes

  1. This product is designed to meet the National Electric Code (NEC), ETL Listed (UL 507 and CSA 22.2) and AMCA 211 Certified. 
  2. (2) ½” key hole slots and (2) 7/16” mounting holes provided for wall mounting and (4) 7/16” mounting holes for overhead mounting provided, (2) on each end. 
  3. All units have a self contained one piece cabinet, fire retardant and corrosion proof paint lock metal double protected with baked on Obsidian Black color, rust preventative electrostatic polyurethane powder coating. 
  4. Cabinet has sufficient strength for fastening to wall on both ends without intermediate support. 
  5. Internal J-Box(es) for electrical wiring: one motor-(1) 2” X 4”; two motors-(1) 4” X 4”; three motors-(2) 4” X 4”. 
  6. Unit is to be installed such that air flow is unobstructed. Air discharge nozzle containing adjustable air directional vanes with 40 degree sweep front to back. 
  7. Circuit protection per NEC by others. 
  8. Optional motor control panel, door limit switch and mounting brackets are field installed and/or wired by others. The door limit switch is to be mounted such that the air curtain turns on as door begins to open. To prevent unit damage, the mounting brackets must be installed such that the bottom of the air curtain is not below the door header.

Features:

Air Curtain

  • 1/2 HP Continuous Duty TEAO Motors
  • Sleek self-contained one piece heavy gauge corrosion proof paint lock metal design
  • ETL Certified to confirm to UL 507 (US) and CSA 22.2 (Canada) Standards (Indoor/Outdoor Use) 
  • AMCA Certified to AMCA 211 
  • (4) 7/16” top and wall mounting holes provided, (2) on each end 
  • Cabinet is to be mounted from overhead or fastened to a wall and has sufficient strength for suspension from both ends without intermediate support
  • Adjustable air directional vanes with 40 degree sweep front to back 
  • Standard color is Obsidian Black 
  • Rust preventative electrostatic polyurethane powder coating 
  • 5 year parts warranty 
  • Freight Included (FOB Continental USA)
  • Proudly made in USA

Options and Accessories: (see Accessories Brochure) 

  • Motor Control Panels
  • Wall and Overhead Brackets
  • Multi-speed motors and controls
  • Washdown units and accessories (NEMA 4 & 4X)
  • Explosion Resistant units and accessories (Class 1, Div. 1, Group D) 
  • Custom color and finishes (304SS, 316SS) 
  • Noise reduction package

Sound Levels: (measured at 10’ in an open field)
1 Motor Unit = 66 dBA, 2 Motor Unit = 68 dBA, 3 Motor Unit = 71 dBA & 4 Motor Unit – 73 dBA

Standard 2 Series (STD2) Electric Heated

standard 2 series mars air curtain electric heated

Standard 2 Electric Heated Notes:

  1. This product is designed to meet the National Electric Code (NEC), ETL Listed (UL 507 and CSA 22.2) 
  2. (4) 7/16” mounting holes provided on for overhead mounting provided, (2) on each end. 
  3. (2) ½” key hole slots and (2) 7/16” mounting holes are provided on each end of the back side for wall mounting. 
  4. All units have a self contained one piece cabinet, fire retardant and corrosion proof paint lock metal double protected with baked on Obsidian Black color, rust preventative electrostatic polyurethane powder coating. 
  5. Cabinet is to be mounted from overhead or fastened to a wall and has sufficient strength for suspension from both ends without intermediate support. 
  6. Control panel is pre-wired and pre-mounted inside the cabinet. 
  7. Unit is to be installed such that air flow is unobstructed. Unit has a 3” air discharge nozzle containing adjustable air directional vanes with 40 degree sweep front to back. 
  8. Wall mounted 24 volt thermostat with remote “heat/off/fan” switch is shipped loose and field installed. 
  9. Circuit protection as per NEC by others. 
  10. Door limit and mounting brackets are field installed and/or wired by others. The door limit switch is to be mounted such that the air curtain turns on as door begins to open. To prevent unit damage, the mounting brackets must be installed such that the bottom of the air curtain is not below the door heater. 

Features:

Air Curtain

  • 1/2 HP Continuous Duty TEAO Motors
  • Sleek self-contained one piece heavy gauge corrosion proof paint lock metal design
  • ETL Certified to confirm to UL 507 (US) and CSA 22.2 (Canada) Standards 
  • (4) 7/16” top and wall mounting holes provided, (2) on each end 
  • Cabinet has sufficient strength for fastening to wall on both ends without intermediate support. 
  • Adjustable air directional vanes with 40 degree sweep front to back 
  • Standard color is Obsidian Black 
  • Rust preventative electrostatic polyurethane powder coating 
  • 5 year parts warranty 
  • Freight Included (FOB Continental USA)
  • Proudly made in USA

Electric Heater Coil and Wiring 

  • Coils are an open type for rapid temperature rise to be located in the air curtains’ intake directly in the air stream 
  • Manual reset thermal overland protection provided 
  • Controls internally mounted, prewired ready for power connection and accessible through the intake or top access panels
  • ¾” knockouts are provided on the top and ends 
  • A heat/off/fan switch is unit mounted at the bottom and the control voltage is 24 volts
  • A wall mounted 24 volt thermostat is included (field wired and installed by others) 

Options and Accessories: (see Accessories Brochure) 

  • Simplelink Controller
    • For 2 speeds, secondary 115V or 208/230V, 1PH power required for 460V & 575V
  • Adjustable time delay (1 sec to 17 min) 
  • Remote mounted fused or non-fused disconnects
  • Hi-Lo Heat
  • Heat on Demand
  • Master + Slave Control Kit
  • 2 speed controls (Separate 115V or 208/230V, 1 PH power required for 460 & 575V)
  • Wall and Overhead Bracket 
  • Custom colors and finishes (304SS, 316SS) 
  • ¼” Aluminum Mesh Filters (Not applicable for units with Simplelink & with 16kW/motor, 208V & 230V, 3PH)
  • Vertical mounting kit (Not applicable for units with 16kW/motor, 208V & 230V, 3PH)
  • BMS Monitor and Control 
    • Dry contact provided in panel for monitoring Motor and Heat
    • 24VAC signal provided from panel for controlling Motor and Heat 

(BMS to have dry contact rated for 24VAC for BMS control-ON/OFF)

Sound Levels: (measured at 10’ in an open field)
1 Motor Unit = 66 dBA, 2 Motor Unit = 68 dBA, 3 Motor Unit = 71 dBA & 4 Motor Unit – 73 dBA

Standard 2 Series (STD2) Hot Water / Steam Heated

standard 2 series mars air curtains hot water steam heated

Standard 2 Hot Water / Steam Heated Notes:

  1. This product is designed to meet the National Electric Code (NEC), ETL Listed (UL 507 and CSA 22.2) 
  2. (4) 7/16” mounting holes provided on for overhead mounting provided, (2) on each end. 
  3. (2) ½” key hole slots and (2) 7/16” mounting holes are provided on each end of the back side for wall mounting. 
  4. All units have a self contained one piece cabinet, fire retardant and corrosion proof paint lock metal double protected with baked on Obsidian Black color, rust preventative electrostatic polyurethane powder coating. 
  5. Hot Water application shown. For Steam, return fitting is at bottom of manifold and supply is at center of manifold.
  6. Cabinet is to be mounted from overhead or fastened to a wall and has sufficient strength for suspension from both ends without intermediate support. 
  7. Internal J-Box(es) for electrical wiring are provided 
  8. Unit is to be installed such that air flow is unobstructed. Unit has a 3” air discharge nozzle containing adjustable air directional vanes with 40 degree sweep front to back. 
  9. Circuit protection as per NEC by others. 
  10. Door limit and mounting brackets are field installed and/or wired by others. The door limit switch is to be mounted such that the air curtain turns on as door begins to open. To prevent unit damage, the mounting brackets must be installed such that the bottom of the air curtain is not below the door heater. 

Features:

Air Curtain

  • 1/2 HP Continuous Duty TEAO Motors
  • Sleek self-contained one piece heavy gauge corrosion proof paint lock metal design
  • ETL Certified to confirm to UL 1995 (US) and CSA 22.2 (Canada) Standards 
  • (4) 7/16” top and wall mounting holes provided, (2) on each end 
  • Cabinet has sufficient strength for fastening to wall on both ends without intermediate support. 
  • Adjustable air directional vanes with 40 degree sweep front to back 
  • Standard color is Obsidian Black 
  • Rust preventative electrostatic polyurethane powder coating 
  • 18 months parts warranty 
  • Freight Included (FOB Continental USA)
  • Proudly made in USA

Hot Water and Steam Coils 

  • Coil castings shall not be less then 16 gauge galvanized steel with tube hold formed with extruded collars. 
  • Fins are die formed .006” aluminum (1 row – 10 FPI, 2 row – FPI)
  • Coils tubes constructed for heavy wall, 5/8” OD seamless copper 
    (Steam - .035” & Hot Water - .025”)
  • Coil tubes arranged in a staggered pattern and mechanically expanded into fins to ensure a uniform pressure bond
  • Manifolds shall be of heavy seamless copper construction 
  • All joints shall be brazed with high temperature silver brazing alloy (Steam – 7% & Hot Water – 3%), max steam operating pressure: 30 PSI
  • Fittings shall be of wrought copper or similar construction such that the entire fluid circuit shall be of compatible nonferrous materials 
  • Manifold shall be fitted with ¼” vent or drain fittings 
  • Supply fitting is on the right side of coil. Return fitting is on the left side

Options and Accessories: (see Accessories Brochure) 

  • Motor Control Panels with remote mounted t’stat
  • Steam distribution, Cupro Nickel and CRN coils
  • Rust resistant epoxy coated or SS coils
  • Custom housing colors and finishes (304SS, 316SS) 

Sound Levels: (measured at 10’ in an open field)
1 Motor Unit = 66 dBA, 2 Motor Unit = 68 dBA, 3 Motor Unit = 71 dBA & 4 Motor Unit – 73 dBA