Mark OJ Livret Technique page 3

OJ Air2-HMI
English
The information in this document is subject to change without notice. The most recent version of
this manual is always available at www.markclimate.com/downloads.
LIST OF FIGURES
Fig. 1: Installation on flat surface
Fig. 2: Removing the front cover
Fig. 3: Removing the back cover
Fig. 4: Dimensioned drawing to facilitate installation in wall box or panel front
Fig. 5: Connecting Modbus via the RJ12 6P4C port
Fig. 6: Connecting Modbus via the screw terminals
INTRODUCTION
OJ-AIR2-HMI-35T is a touchscreen panel with user-friendly graphical user interface specially deve-
loped for controlling ventilation systems. The panel communicates with the OJ-Air2 system via a
Modbus interface, ensuring easy installation.
PRODUCT PROGRAMME
Product Type
OJ-AIR2-HMI-35T 3.5" touchscreen panel
OPERATION
This quick start guide only describes basic settings. If the screen saver
is active, simply touch the screen once to open the home screen. This
screen provides access to elementary functions such as fan speed,
temperature and setup. The time and day of the week are shown in
the top line of the screen.
Below these, an alarm bell is visible if an alarm has been activated. The
house in the middle section of the screen provides access to a simple
overview of temperatures, air volumes and filter pressures. The tem-
perature shown to the right of the house is the temperature setpoint.
The icons shown in the lower part of the screen can be changed and
may therefore differ from those shown in these instructions.
FAN SPEED
To set fan speed, press the fan in the lower part of the home screen.
You can choose between five predefined fan speeds. Off, Auto, Low,
High and Service Stop. If you choose Auto, OJ-AIR2-HMI-35T will fol-
low a predefined program. If you choose Low, the predefined program
is overridden and the fan operates at low speed. If you choose High,
the predefined program is overridden and the fan operates at high
speed. If you choose Off, the fan comes to a complete standstill until
fan speed is again changed. If you choose Service Stop, the system
shuts down and can only be restarted locally from the control panel.
EN
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