EWD ELECTRIC HEATED MODEL

Specification

Air curtain shall be Miniveil Model EWD….and shall produce a strong low turbulent air stream with an air velocity at the nozzle of 6000 fpm. The unit is of a rigid welded gauge 14 steel construction (Stainless steel grade 304 or higher available). The unit is designed to be supported at each end without the need for intermediate support. The motor(s) are mounted on the base frame, the blowers in the air blower section are belt driven and protected by a belt guard. The air blower assembly section is bolted to the top casing with (3) bolts on each end and can be easily removed for inspection and service. This section consists of a rigid base on which are mounted dynamically balanced forward curved double inlet blower wheels with welded hubs of class II design, assembled in matching blower housings with inlet venturis. Each blower wheel is supported by two permanently lubricated 1-3/16” sealed ball bearings, encased in vibration isolating rubber cartridges. The discharge nozzle evenly distributes the air along the full nozzle length with a minimum amount of turbulence, energy loss and noise. The 8” wide discharge nozzle is +/- 20° adjustable to ensure deflection of the entire air stream in or out through the door.

Electric Heating Coil

Air Curtain shall be equipped with a CSA approved Helical Coil Electric Heater with Automatic Reset Thermal Overload, Magnetic Contractor(s), and be mounted and internally prewired on the base for easy installation and servicing. Heater assembly to fit inside the unit. The heater may divide into 2 stages or more as per specific models.
All coils are rated in compliance with the certification program of A.R.I. standard 410-72.

Operation Controls

The unit shall contain multiple control methods to fully control operation of air curtain:

• Automatic Door Switch Operation
  • Air curtain will have the fans activated by door open, and have the fans deactivated by door closed.
• Unit mounted Rocker Switch Control Operation (Optional)
  • Air curtain equipped with Rocker switches which can be turn air curtain to High Speed/OFF/Low Speed.
• Thermostat Control Operation

• When air curtain has fans activated, the thermostat will have heater on when temperature is below set point and has heater off when temperature is above set point.

• Wireless Network smart control System (Optional)
  • Air curtain can be fully controlled and monitor through your smart phone or computer (No App needs to download).

Control Panel (Optional)

Three phase units require a motor starter control panel which may also include a Lockable Discount Switch, a Hand/Off/Automatic Switch, or Terminal Block for Automatic Door Switch, Air Pressure Sensor (Providing False Signal Alarm), Adjustable Time Delay (allowing the unit to keep running for a period after the door closes). The control panel may be unit mounted at specific location as per request.

Technical Data

Standard Voltages: 208V/575V, 3 PHASES, 60HZ; Alternate Volt available upon request 
SOUND LEVEL: (MEASURED 10’ FROM THE UNIT IN FREE FIELD): 85dbA

EWD STEAM HEATED MODEL

Specification

Air curtain shall be Miniveil Model EWD….and shall produce a strong low turbulent air stream with an air velocity at the nozzle of 6000 fpm. The unit is of a rigid welded gauge 14 steel construction (Stainless steel grade 304 or higher available). The unit is designed to be supported at each end without the need for intermediate support. The motor(s) are mounted on the base frame, the blowers in the air blower section are belt driven and protected by a belt guard. The air blower assembly section is bolted to the top casing with (3) bolts on each end and can be easily removed for inspection and service. This section consists of a rigid base on which are mounted dynamically balanced forward curved double inlet blower wheels with welded hubs of class II design, assembled in matching blower housings with inlet venturis. Each blower wheel is supported by two permanently lubricated 1-3/16” sealed ball bearings, encased in vibration isolating rubber cartridges. The discharge nozzle evenly distributes the air along the full nozzle length with a minimum amount of turbulence, energy loss and noise. The 8” wide discharge nozzle is +/- 20° adjustable to ensure deflection of the entire air stream in or out through the door.

Steam Heating Coil

The Steam coils are made of copper tubing with aluminum fins and have opposite end supply and return. All coils are leak tested at 400p.s.i. air pressure under water and are suitable for continuous operation at 75p.s.i. and 320 F Steam. All coils are rated in compliance with the certification program of A.R.I. standard 410-72.

Operation Controls

The unit shall contain multiple control methods to fully control operation of air curtain:

• Automatic Door Switch Operation
  • Air curtain will have the fans activated by door open, and have the fans deactivated by door closed.
• Unit mounted Rocker Switch Control Operation (Optional)
  • Air curtain equipped with Rocker switches which can be turn air curtain to High Speed/OFF/Low Speed.
• Wireless Network smart control System (Optional)
  • Air curtain can be fully controlled and monitor through your smart phone or computer (No App needs to download).

Control Panel (Optional)

Three phase units require a motor starter control panel which may also include a Lockable Discount Switch, a Hand/Off/Automatic Switch, or Terminal Block for Automatic Door Switch, Air Pressure Sensor (Providing False Signal Alarm), Adjustable Time Delay (allowing the unit to keep running for a period after the door closes). The control panel may be unit mounted at specific location as per request.

Technical Data

Standard Voltages: 208V/575V, 3 PHASES, 60HZ; Alternate Volt available upon request 
SOUND LEVEL: (MEASURED 10’ FROM THE UNIT IN FREE FIELD): 85dbA
Rating Based on 70 Degree F entering air, 5 p.s.i. steam.

EWD HOT WATER HEATED MODEL

Specification

Air curtain shall be Miniveil Model EWD….and shall produce a strong low turbulent air stream with an air velocity at the nozzle of 6000 fpm. The unit is of a rigid welded gauge 14 steel construction (Stainless steel grade 304 or higher available). The unit is designed to be supported at each end without the need for intermediate support. The motor(s) are mounted on the base frame, the blowers in the air blower section are belt driven and protected by a belt guard. The air blower assembly section is bolted to the top casing with (3) bolts on each end and can be easily removed for inspection and service. This section consists of a rigid base on which are mounted dynamically balanced forward curved double inlet blower wheels with welded hubs of class II design, assembled in matching blower housings with inlet venturis. Each blower wheel is supported by two permanently lubricated 1-3/16” sealed ball bearings, encased in vibration isolating rubber cartridges. The discharge nozzle evenly distributes the air along the full nozzle length with a minimum amount of turbulence, energy loss and noise. The 8” wide discharge nozzle is +/- 20° adjustable to ensure deflection of the entire air stream in or out through the door.

Hot Water Heating Coil

The Steam coils are made of copper tubing with aluminum fins and have opposite end supply and return. All coils are leak tested at 400p.s.i. air pressure under water and are suitable for continuous operation at 75p.s.i. and 320 F Hot Water. All coils are rated in compliance with the certification program of A.R.I. standard 410-72.

Operation Controls

The unit shall contain multiple control methods to fully control operation of air curtain:

• Automatic Door Switch Operation
  • Air curtain will have the fans activated by door open, and have the fans deactivated by door closed.
• Unit mounted Rocker Switch Control Operation (Optional)
  • Air curtain equipped with Rocker switches which can be turn air curtain to High Speed/OFF/Low Speed.
• Wireless Network smart control System (Optional)
  • Air curtain can be fully controlled and monitor through your smart phone or computer (No App needs to download).

Control Panel (Optional)

Three phase units require a motor starter control panel which may also include a Lockable Discount Switch, a Hand/Off/Automatic Switch, or Terminal Block for Automatic Door Switch, Air Pressure Sensor (Providing False Signal Alarm), Adjustable Time Delay (allowing the unit to keep running for a period after the door closes). The control panel may be unit mounted at specific location as per request.

Technical Data

Standard Voltages: 208V/575V, 3 PHASES, 60HZ; Alternate Volt available upon request 
SOUND LEVEL: (MEASURED 10’ FROM THE UNIT IN FREE FIELD): 85dbA
Rating Based on 70 Degree F entering air, and 180 degrees hot water.