Concession Trailer & Food Truck - Zhengzhou Known Imp.& Exp. Co., Ltd
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Frequently Asked Questions
Click on a question below to reveal the answer. Scroll down for concession and related questions. For any questions not answered here, always feel free to contact us for more information.
Q
How does the electric gas strut for a food trailer window work?
A
The electric gas strut system is used to automatically open and close the service window of a food trailer. It is mainly connected through a transformer, a forward-reverse switch, and the electric strut. The live wire, neutral wire, and ground wire are connected to the transformer, which converts the power and outputs V+ and V- to the switch. When the switch direction is changed, the current direction changes, allowing the strut to extend or retract. Before operation, always check that the wiring is secure, the voltage matches the strut requirements, and the window can move smoothly without obstruction.
Q
How to Connect Electric Gas Struts for a Food Trailer Service Window
A
An electric gas strut, also called an electric linear actuator, can be used to lift and close the service window of a food trailer. The system is simple: AC power enters a power supply/transformer, the transformer outputs DC power, and a forward-reverse switch changes the DC polarity to make the strut extend or retract.
The supplied wiring drawing shows five terminals on the transformer side: L, N, ground, V+ and V-. The DC output V+ and V- are connected to a forward-reverse switch, and the switch output is connected to the electric strut terminals V+ and V-.
Food Trailer Service Window Electric Gas Strut Wiring Overview

More details: How to Connect an Electric Gas Strut for Food Trailer Service Windows

Q
What kinds of kitchen equipment are available?
A
Many kinds, such as fryers, ovens, refrigerators etc. Please contact us to get kitchen equipment catalog.
Q
Do I need a generator?
A
This depends on where you will be located. There are some festivals and locations that will provide you with power but then there are also those events in which they expect you to be self-sufficient. If you want to be certain that you have access to as many locations as possible, a generator is highly recommended.
 
Q
What exactly is a fire suppression system and do I need to legally install one in my unit?
A
A fire suppression unit is an emergency extinguishing system in which nozzles are placed under the commercial hood over each piece of cooking equipment with an open flame, at a specific height. If the temperature exceeds a certain amount, a dry liquid powdered chemical will be released and the gas valves will be shut-off.
Some areas do not require the installation of this system. We recommend that you inquire with your local fire marshal since they are the ones that have the authority over this matter.
Please keep in mind that if you are planning to travel to different counties and/or states, if they require the fire suppression system they will not let you into their events. Additionally, there are certain fairs and festivals that will only allow you to participate if you have this system installed.
We personally believe that the installation of this system is a must. It provides you with a safety feature that could save you and your employees’ lives as well as providing protection over your investment.
Q
How do I know what equipment I will need? Can you offer advice?
A
If you have an idea about the type of menu you will be using we can definitely cater the equipment to your needs. If you are unsure about what you will be cooking, we can also offer you advice.
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