Soler & Palau ILHB-ILHT ECOWATT handleiding

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Soler & Palau

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5.10.2 Adjusting the pressure set point

By potentiometer, CVF/REB-ECOWATT type remote control or 0-10V output.

By default the roof fan is set to obtain the pressure in bold in the table.

The potentiometer in the controller allows you to change the pressure set point.

The set point can be given by the CVF/REB-ECOWATT type remote control or a 0-10V output.

Correspondence table between the potentiometer graduation, the voltage applied on terminal 10 and the

pressure set point.

Graduation

potentiometer

Voltage (V)

at terminal 10

Without

display

With

display

1 1 100 Pa 160 Pa

2 2 300 Pa 320 Pa

3 3 500 Pa 480 Pa

4 4 700 Pa 640 Pa

5 5 800 Pa 800 Pa

6 6 800 Pa 960 Pa

7 7 800 Pa 1 120 Pa

8 8 800 Pa 1 280 Pa

9 9 800 Pa 1 440 Pa

10 10 800 Pa 1 600 Pa

If the roof fan has a display, the display will show you the pressure measured at the roof fan plate (see diagram below).

Pressure measurement

Note: After each adjustment wait 1 minute for the fan speed to stabilize.

By Modbus BMS

The pressure set point can be given by a Modbus BMS set point. For the Modbus connection settings,

refer to §"5.2.4 Modbus connection - Connection to a BMS".

After you have wired your Modbus link:

Turn on the power to connect yourself to the controller. The roof fan wheel must be stopped.

Modbus register table:

Steps Register numbers Value to be entered

1 - Access to Level 1 8 1

2 - Change in the operating mode of the controller 10 2

3 - Enabling of the on/oﬀ in Modbus 13 1

4 - Saving of changes 8 10000

5 - Changing the set point 0

Between 0 and 10,000 to deﬁ ne the

desired pressure set point, see the

table below

Fan stop 13 0

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