Dampers Xk; Frost Thermostat; Filter Pressure Transmitter - Dantherm DanX 2/4 XKS Installation, Commissioning And Service Manual

4. COMMISSIONING

4.5.2 Dampers XK

You will find the following 4 dampers installed in a XK and mixing box section:
1. By-pass damper
2. Exhaust air damper
3. Recirculation damper
4. Outdoor air damper
Before commissioning the unit make sure that the dampers are opening/closing in the right
direction:
Set the controls to night time (no outside air) and the dampers will be in the following
positions:
Recirculation damper (3) fully open.
•
Outdoor damper (4) and exhaust air damper (2) fully closed.
•
Now change the controls to daytime and see if damper 4 and 2 are starting to open and if
damper 3 is starting to close. Now set the outdoor air to 100%, wait a few minutes and check
if the dampers are in the following positions:
Recirculation damper (3) fully closed.
•
Outdoor damper (4) and exhaust air damper (2) fully open.
•
Now check the operation of the by pass damper (1).
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 larger damper over the heat exchanger is fully open.

4.6 Frost thermostat

Check if the frost thermostat is set to the correct temperature. The factory setting is +8°C.

4.7 Filter pressure transmitter

Check if the pressure transmitters are set to the correct maximum pressure loss. The factory
setting for the different filter classes are shown in the table below.
Filter type
G4 panel
G3 bag
F5 bag
F7 bag
F7 compact
Recommended
pressure loose
200 Pa
250 Pa
250 Pa
250 Pa
250 Pa
29
Max
pressure loose
200 Pa
250 Pa
400 Pa
400 Pa
400 Pa