I N S T R U C T I O N S
Instructions OJ Air
670039B 08/24 (JSP)
English
LIST OF FIGURES
The following figures are located at the end of these instructions:
Fig 1:
Dimensions, front and side view
Fig 2:
Electrical terminal connections OJ Air
Fig 3:
External system communication port
Fig 4:
Internal system communication ports
Fig 5a:
Power supply connections OJ-AIR PLUS-3
Fig 5b:
Power supply connections OJ-AIR PLUS-6
Fig 6:
Connection for HMI-35T Touchpanel
Fig 7:
Digital inputs
Fig 8:
Analogue inputs
Fig 9:
Cable for BMS Modbus connection
Fig 10:
Cable for BMS TCP/IP connection
Fig 11:
Digital outputs 1-2
Fig 12:
Digital outputs 3-7
Fig 13:
Analogue outputs
Fig 14:
Connection of temperature sensors
Fig 15:
Insertion of a USB stick
Fig 16 :
Inserted USB stick
Fig 17:
Connector pin out for Modbus cable
Fig 18:
How to correctly mount connectors in a MODBUS cable
Fig 19:
Connection of DV fan drive
Fig. 20:
Connection of Pressure transmitter, filters
Fig 20a:
Connection of Pressure transmitter, flow
Fig 20b:
Connection of Pressure transmitter, de-icing
Fig 21:
Connection of Zone modules
Fig 22:
Possible installation angles
Fig 24:
Connection of Ziehl-Abegg/EBM Papst and Swiss Rotor fans
Fig 25:
Cable for BMS connection
INTRODUCTION
• Read this introduction thoroughly and follow the instructions it contains
before commissioning the OJ Air
• This introduction contains important information and should be used
when installing, connecting and commissioning the OJ Air
as during maintenance, servicing and troubleshooting.
• If the instructions contained in this introduction are not observed, the
liability of the supplier and the warranty no longer apply (see also section
Prohibition on use).
• Technical descriptions, drawings and figures may not be wholly or
partly copied or disclosed to third parties without the permission of the
manufacturer.
• All rights are reserved if the product is included in patent rights or other
form of registration.
Plus
TM
Plus
TM
Plus.
TM
Plus as well
TM
KEY TO SYMBOLS
Please pay particular attention to the sections marked with symbols and
warnings.
Warning
This symbol is used where there is a risk of severe or fatal personal injury.
Caution
This symbol is used where potentially dangerous situations may result in
minor or moderate personal injury. The symbol is also used to warn against
unsafe and hazardous conditions.
Note
This symbol is used to indicate important information and in situations
which may result in serious damage to equipment and property.
AIR HANDLING CONTROL OJ AIR
The OJ Air
Plus is an intelligent, configurable controller for an air handling
TM
unit (AHU). OJ Air
TM
each of which can be configured to ensure perfect adaptation to the
ventilation system concerned and the provision of precisely the functions
needed for energy-optimized control.
The OJ Air
Plus handles all control functions, Modbus communication
TM
internally in the AHU and remote communication to BMS and cloud. OJ
Air
Plus contains several different interfaces for peripheral units, allowing
TM
it to be connected to fans, sensors, pumps and valves.
OJ Air
Plus can be connected to a BMS system via Modbus interface,
TM
Modbus RTU, Modbus TCP/IP and BACnet TCP/IP. See electrical terminal
connections in Fig. 2.
PRODUCT PROGRAM
AHU controller
OJ-Air-Plus-A3
OJ-Air-Plus-A6
OJ-Air-PLUS CONNECT
HMI Touch panels
OJ-AIR PLUS HMI 35T
OJ-AIR2 HMI 20T
Zone Components
OJ-Zonemodule-A
OJ-Zonemodule-M
OJ-Zonemodule-MP
Drives
DV-xxxx
DC-xxxx
DRHX-xxxx
© 2024 OJ Electronics A/S
PLUS
TM
Plus contains a preprogrammed range of applications,
OJ Air
Plus AHU Controller AC/DC
TM
OJ Air
Plus AHU Controller DC
TM
OJ Air
Plus Mating Connect Kit
TM
3,5" Touch panel
2" Touch panel
Zonemodule Analogue actuators
Zonemodule Modbus actuators
Zonemodule MP-bus actuators
OJ Drives for Ventilation fans
OJ Drives® for Compressors
Drives for Rotary Heat Exchangers
1