How to use the controller

Depending on the conditions of the site,
there are many different types of controllers, such as the stand-alone controllers,
multi-circuit controllers, communication controllers, buried types, or exposed ones.

The capacity of a controller

The electric capacity of a controller varies depending on the types. The area that can be covered by each type of controller can be calculated as follows;

1. The amount of film that can be covered by a single controller;
The capacity of the controller *80% (It is advised to use only 80% of the total capacity for safety.) / Film wattage
ex) In the case of the UTH-200 controller (4Kw), 4Kw*0.8=3.2Kw 3.2Kw/0.22Kw (wattage per meter) =14.5m

2. The number of controllers needed for the desired floor area
Floor area * 90% (80~90% fo the actual rea of the film to be installed) * film wattage / 80% of the controller capacity
ex) The floor area is 25㎡, and a 220W film and UTH-200 (4Kw) controllers are to be used: 25㎡ * 90% * 0.22Kw / 3.2 = 1.54 controllers. Therefore, it is required to use two controllers.

It is required to measure the current so that the maximum current limit of each controller is not exceeded. (Refer to the installation manual.)

Stand-alone controller

A stand-alone controller is used to control the heating of the space (a room) directly.
Normally, one or more stand-alone controllers are needed.
Here, a multi-circuit controller can be used when having multiple stand-alone controllers that do not look good.

Communication controller

This type of controller is recommended when you wish to control multiple installations in more than one room at a single place.
For example, this type of controller is recommended in facilities with multiple rooms, such as a motel, dormitory, care home, or pension, so that the heating of each room can be controlled at the central control room.
When you use a communication controller, there must be stand-alone communication controllers in each room, while the control room is to be equipped with the central controller.
And, these stand-alone controllers and the central controller are to be connected with communication cables. For this purpose, the communication cables already installed in the building can be used, or a separate communication network may be installed.

Multi-circuit controller

It can be used if the films are to be installed in a single, wide space. For example, if the area is 100㎡, a total of seven stand-alone controllers are to be installed in a single spot or scattered around in the room.
This is not very efficient and does not look good, either. In this case, you can install a multi-circuit controller to allow controlling the entire heating unit with a single controller.
Ex) Restaurants, auditoriums, religious facilities, or at home (two to three bedrooms, a living room, and a kitchen)
Due to the size of this type of controller, they are usually installed in a distribution panel, shoe closet, or inside the counter.
A multi-circuit controller is equipped with breakers for individual circuits.

Exposed/buried controllers

Stand-alone controllers (including communication controllers) come in two types: buried and exposed types.
In the case of the buried type, the controller must be installed in the wall, and a buried installation box is required. This type is normally used in new construction sites or remodeling works involving wall construction.
As for the exposed type, there are two available options; one is to have both the power cable and film connection wire buried in the wall, or the other is to connect the mounted type controller to an exposed service outlet while the exposed film connect wire is housed in molding. Either of these two options can be chosen in accordance with the conditions at the site.

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