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5.7.3
Adjusting the airflow setpoint
The airflow setpoint setting is to be set on the VCHV-A controller present on the right side of the controller.
The VCHV-A is mounted and wired at the factory. The adjustment keys of the VCHV-A are located inside
the housing under the cover. Press the snap lock under the housing next to the pressure taps to open the
case. Follow the instructions below:
0.0
OK
SET
OK
SET.1
3 x
SET.6
OK
1.0.0.0
ou
OK
The first digit flashes, press the up or down arrows
to enter the desired airflow setpoint. Press OK to
move to the next digit
SET.6
3 x
OUT
OK
SET
OUT
OK
KUBAIR F400 ECOWATT
®
K* coefficient
Setpoint selected in*
Max. setpoint
355
129
m
3
/h
4 200 m
3
/h
400
193
m
3
/h
5 400 m
3
/h
450
211
m
3
/h
8 000 m
3
/h
500
250
m
3
/h x 1 000
10 000 m
3
/h
630
428
m
3
/h x 1 000
14 500 m
3
/h
710
473
m
3
/h x 1 000
25 000 m
3
/h
*Factory-set values
On/Off via Modbus
In Coil Stat Bits
0x01 : Playback
0x05 : Writing a register
Register
Address
Function
Value
Status
0x0001
0
ON/OFF motor
0-1
0 - OFF
1 - ON
5.8 COP constant pressure mode
5.8.1 Description
In constant pressure operation, the VCHV-A located to the right of the INTZ switch on one side of the
unit regulates the motor speed to achieve the desired pressure setpoint. The pressure setpoint must be
entered on the VCHV-A in Pa.
5.8.2 Control wiring
For Analog/Digital controls use cable with the following characteristics:
• Sheath Ø: 6.8mm to 9mm
• Strand cross-section: 0.7mm² to 1mm².
• Recommended minimum stripping: 10mm
• Maximum recommended length: 30m
