Dantherm DanX 1 - 5.3 Dampers DanX 1;2;3 XD

5. COMMISSIONING
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Now check the operation of the by-pass damper (2). Make sure that there is a temperature
difference between the swimming pool hall temperature set point and the outdoor air
temperature of at least 10°C, so that the unit runs in heat recovery mode. Now the by-pass
damper (2) should be fully closed.
5.3 Dampers DanX 1/2/3 XD
You will find the following 4 dampers installed in the DanX 1/2/3XD:
1. Recirculation / mixing damper
2. By-pass damper
3. Exhaust air damper
4. Outdoor air damper
Before starting up the unit, make sure that the dampers are opening/closing in the right
direction:
Set the controls to Close (no outdoor air) and the dampers will be in the following positions:
• Recirculation / mixing damper (1) fully open.
• Outdoor damper (4) and exhaust air damper (3) fully closed.
Now change the controls to Open and see if damper 4 and 3 start to open and if damper 1
start to close. Now set the outdoor air to 100%, wait a few minutes and check if the dampers
are in the following positions:
• Recirculation / mixing damper (1) fully closed.
• Outdoor damper (4) and exhaust air damper (3) fully open.
Now check the operation of the by-pass damper (2). Make sure that there is a temperature
difference between the swimming pool hall temperature set point and the outside air
temperature of at least of 10°C, so that the unit runs in heat recovery mode. Now the by-
pass damper (2) should be fully closed.