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Control options

Three types of controller are available: Basic, Plus or Automatic. The control panel

allows you to control the climate separation between inside and outside in a simple

and comfortable way.

1. Basic controller (RTRD)

The five-speed controller allows you to match the volume of air to different conditions.

The RTRD-controller has a rotary control switch for five speeds, a neon indicator and

an input for a door contact switch or room thermostat.

2. Plus controller (RDP)

The Plus controller has two switches with five speeds:

1 = with open door

2 = heat demand when door closed

This controller is supplied with two rotary control switches. To switch from button

1 to 2, a door contact switch should be connected to the first input. To the second

input, a room thermostat should be connected. The air curtain will not switch off

until the room has reached the desired indoor temperature. On request, this controller

can be delivered with more control options.

3. Automatic controller

In situations where doors must be open frequently and for longer periods of time, it is

difficult to ensure a constant indoor temperature as external conditions can change

continuously throughout the day. This often leads to complaints about draughts or to

high energy consumption needed to keep the temperature comfortable inside.

The automatic controller is developed to economically create a comfortable indoor

climate in these changing conditions. By means of the air and water controls the air

volume and discharge air temperature are geared automatically to each other. This

controller adjusts the heat demand to different conditions.

The basis of this unit is a five-speed controller, which is coupled to a pre-programmed

control (PLC). This fully automatic controller has connections for input signals, to

which various sensors, such as integrated floor or air temperature sensors, can be

connected. The controller also features output signal connections, so that the desired

discharge temperature of the air stream can be regulated.

Basic controller (RTRD) with neon indicator

and connections for room thermostat and

thermal contacts.

The control panel has the following

dimensions: 600 x 330 x 205 mm (l x w x d)

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Biddle IndAC Bedienungsanleitung Seite 8