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FAQs

No, they generally do not require any cover when installed outside, until and unless there is a probability of direct rain or chances of water ingress in the machine. Their standard accessory can be ordered to make a rain hood or protect  the machine.

No, there is no difference in the sound level of the machines when installed inside or outside, but since air curtains circulate a huge volume of air, in very quiet conditions it may be disturbing.

Hence installing them outside gives better protection and even affects the feel of sound level.

We should install air curtains just above the door header or to a maximum of the half to two inches. The closer the top of the door opening is, the more effective the air curtain will be. Extended mounting brackets are available in various lengths so the air curtain can be mounted to clear an obstruction.

In no way Air Curtains should be taken more than two inches above the Door header, generally done in the case of Exed glass above the Door. People tend to put it above the Exed glass. In such conditions, air curtain efficiency will be severely affected.

Not more than eight inches for refrigeration and fourteen inches for insects. To seal off the ends, twelve to eighteen-inch panels made of sheet metal, plastic strips, or plywood can be installed on each side of the door opening to improve the efficiency of the air curtain. Sometimes the air curtain air outlet nozzle may be installed between the obstruction and the wall. Precaution is necessary to prevent the obstruction from deflecting the flow of air.
The average time required to install a unit is 90-120 minutes.
Yes, air curtains can be coupled with the doors, with help of a plunger type and magnetic limit switches. The switches can be coupled with any kind of door, single side, double side openings, Sliding Doors, Automatic doors, high-speed shutters, Roller shutters, etc.
The average time required to install a unit is 20-30 minutes.
There is a variety of optional mounting hardware accessories. Side extension plates are available to further extend the outboard mounting holes. These plates are available in various sizes up to a nine-inch extension for both ends of the air curtain. Adjustable mounting brackets and extended wall mount brackets for drum-type roll-up doors are also available. These types of brackets are used when the air curtain needs to be mounted some distance away from the wall. The brackets are also available for mounting on the glass and special brackets connect the two machines together.
When the installation is not possible over the top of the doorway, the air curtain may be side-mounted on both ends of the door. As per the guidelines of AMCA, in case of side installation, the air curtains should be installed on both sides or in a zigzag pattern to cover the entire length of the door. Yes, the same Air Curtains can be vertically mounted.
We should not take an Air curtain, more than the Door width. Though technically it will not affect, commercially will not be the right decision. Air curtain length should be more or less equal to the width of the door.
Yes, with Air Curtains you can follow an OPEN DOOR POLICY, for your outlet. Air curtains when rightly installed and the directional louver set at a right angle can give continuous thermal protection and can be installed without a door.

Yes, air curtains can be used to hold extreme hot air on the industrial conveyor or oven. Actually, air curtains are very effective and can prove to be a great money-saving tool because a huge amount of money is invested in heating the air through heaters/boilers. When the difference between the ambient temperature and the hot air is higher, losing the air makes an exponential effect on the cost.

The installation of Air Curtains on hot ovens and powder coating conveyors is very different than normal horizontal installation, where the thumb rule says, “We install the air curtain on the warmer side.” On the contrary, when the temperature) in more than 200 C, the installation cannot be done inside and in such places, the installation is done in ambient air with air Bowing from bottom to top, with special mounting brackets. Air Curtains are very effective on hot ovens and can hold the hot air inside various advantages which they can give are:

  • Fuel Saving
  • Reduced chamber heating time
  • Increased conveyor speed results in high production
  • Reduced curing time
Yes, the air curtains should be used on a blast freezer or a cold room door. Generally speaking, if the humidity is high you should prefer to take the chassis in stainless steel and the outer body in Aluminum or stainless steel, with plastic or stainless steel suction grills.
Air curtains, sometimes called air barriers, provide high-velocity airflow through door or window openings, preventing the entry of dust, flies, and insects. Execute this operation by creating an unobstructed passage for the customers along with the provision of a comfortable and hygienic experience.
Yes, air curtains are very much effective. When a high-efficiency air curtain is installed, it can save a lot of energy, while the entry area remains climate protected, comfortable, and free of drafts, insects, odors, etc.
An air curtain, also known as an air door, is a machine that blows a controlled airflow across an opening to the other side to create an airtight seal. This seal separates the different environments while allowing for a smooth, uninterrupted flow of traffic and unobstructed views through the opening.
The air curtain uses a fan to push the air curtain down. Forced air forms an invisible barrier that helps control temperature by preventing hot or cold air from entering door frames or openings in the building.
Single-air curtains have shown promise as a low-noise technology but may introduce additional noise sources such as lip sound and compound noise. But mitzvah manufacture silent air curtains.
Over the building entrance door in the Hall, the air curtain ought to be mounted. A heated or unheated model might be utilized, depending on the area of application. When used over chilled refrigerators or for pest control; either side of the door opening is suitable. When used over freezer doors, outside installation is necessary because when placed indoors, the fans have a tendency to collect moisture, freeze, and eventually form a snowball around the fan, reducing its operational efficiency. When used as a thermal barrier in factories, supermarkets, etc., inside installation is required to stop heat loss and keep out chilly air. Always mount heated equipment inside.
Mitzvah Air curtain may effectively exclude flies and other insects from entering your interior throughout your dwelling In order to separate the conditioned internal air from the outside air, air curtains are used.
The lifespan of a Mitzvah air curtain might range from ten to thirty years, depending on the device and usage.
Mitzvah air curtains will keep the interior room dry by preventing the entry of humid outside air. This considerably increases comfort while lowering the amount of energy needed to clean the air. We provide heated and unheated air curtains; the latter are more prone to absorbing moisture and drying out more slowly. They develop stinky odors as well as lose shape as a result of this.
An air door, also known as an air curtain, it releases a controlled stream of air downward. It is pointed straight at anything and everyone who enters the building through the entryway. This aids the air curtain in clearing any debris from the entrance.
Mitzvah Air curtains have washable aluminum filters that have a better capacity to hold dust and particles. Pleated disposable filters with low airflow resistance that meet MERV 8 requirements can also fit within air curtains. Higher MERV-rated Mitzvah filters may also be employed. Additionally, there are specialized units with True HEPA filters that can catch 99.97% of tiny impurities and particulates as small as 0.3 millimeters. The regularity of filter replacement will depend on your environment and setup.
As a Rule, Air Curtains are always installed on the warmer side, In India, inside it is air conditioned and outside it is hot, and hence air Curtains are installed in the outside environment. Though they can be used by placing them inside or outside, but when placed outside they have an higher efficiency to stop the infiltration of flies.
The power used by an Air Curtain depends on the following factors :
i) Length of the Air Curtain
ii) The Outside desired Velocity
iii) Diameter and RPM of the Blower
iv) Material of Construction of the blower
V) Efficiency of the MotorDepending on the above parameters the power is Tabulated.
In general, the output power for a 3 meter high door, with 5 inch Diameter Plastic blower, will as follows :
Width Power
3 ft 200 W
4 ft 240 W
5 ft 320 W
6 ft 360 W
7 ft 440 W

Usually equipped with heating elements, these air curtains will raise the temperature of the air to lessen the chilly draughts that may occur when doors are left open. The energy needed to heat a space in a structure is not lost when an air curtain is utilized as a barrier.
Cleaning an air curtain is typically a pretty easy procedure. In some types, a filter is easily removed by unscrewing it and running it under hot water. All the dirt and debris on the filter will be removed by the water. The filter is then simply screwed back into the curtain.
Long Ago Were Air Curtains Created? Theophilus Van Kannel received a U.S. patent for an air curtain in 1904, which is the earliest documented mention of one.
In Indian Climatic Conditions, the main purpose of Installing Air Curtains, are as follows :-
1. Inhibit entry of Flies | Mosquitoes
2. Prevent Dust from Entering from the Door
3. Minimise the Air Conditioning loss from the doorway even when the Door remains open.
Outside Environment is full of Dust and humidity and the same air is being sucked and thrown by the air curtain.

Filter will impose a static to the flow and if it is circulating the air with dust and humidity.

If we suck the outside air, it will choke the filter and hence imposing a high static as a result motors will burn out. Hence in Indian conditions filters are not used with air curtains.
In Western countries outside it is freezing cold, and hence air curtains are used with heaters and filters, as air being circulated in clean and from internal environment.

 

 

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