FRICO ADAC090 - Инструкция по эксплуатации - Страница 7

Thermozone ADA Cool

7

GB

Adjustment of ADA Cool

1. Set up the adjustment tool and attach the 

enclosed piece of paper.

2. The adjustment screw should be set on 

30 mm in the standard setting. Fig. 3.

3. Put the adjustment tool on the floor, 

300  mm into the room on the cold side, see 
Figure to the right.

4. Adjust the speed with the 5-stage regulator 

(ADACR) so that the piece of paper is 
hanging straight down, not outwards or 
inwards. For further precise adjustment, 
adjust the angle of the unit through the 
adjustment screw. Fig. 3.

Theory

The air velocity in the air curtain must 
be great enough to direct the air stream 
downwards. The air curtain is mounted on 
the warm side and should be directed so that 
a small part of the air stream goes to the cold 
side while the main part blows towards the 
warm side. This ensures optimum separation 
of internal and extermal airs.

A too strong air 

curtain gives 

energy losses.

A too weak air 

curtain cannot 

cover the door 

height.

Correct air 

curtain! 

Opening with a correctly adjusted air curtain

Positioning of adjustment tool

Inside / cold side

Outside / warm side

300 mm

Measurements

The simulated environment was a cold 
storage room in a food store. The cold storage 
was directly connected to a room with room 
temperature. By carrying out a set of tests at 
different conditions, and by measuring the 
temperatures at different points in the air 
stream, charts were generated, showing how 
the air flow can affect the temperature in 
the different areas around the opening. The 
values on the x-axis indicate the distance in 
centimetres from the unit, the values on the 
y-axis indicate the distance in centimetres 
from the floor. When the air curtain is set 
correctly, a sharp division between the 
temperature zones is obtained.