Zehnder EASY 5.0
70
Setting the jumper position:
30. ECO / DIVA fan operating control pressure switches
The ECO and DIVA unit versions are equipped with an adjustable pressure switch (factory set at 25 Pa) to control the
operation of the supply and return air fans by measuring the differential pressure.
The pressure switches are of the NO type (normally open), electrical connection between terminals (1) and (3).
The contact is open in the idle state when there is no air volume and closes when fan air volume results in a differential
pressure of more than 25 Pa.
Reference point
Details
1
Setting jumpers
2
Zero setting (sensor must be in its operating position,
pressure taps disconnected and fans off)
3
Electrical connection terminal block
4
Pressure taps P1(+) et P2(-)
Max. differential pressure rating
(300 Pa / 1600 Pa / 5000 Pa depending on version)
The jumpers are in the OFF position (position 0)
Z-MASTER-V1122-CSY-INM-Zehnder Easy5.0
DEP S — DEP R pressure switch
ECO - DIVA
Differential pressure (Pa) measured between P1 and P2
Contact status
Closed
Open