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OJ Air2 Master Complete AHU control system

The OJ Air2 system has been specially designed to control air handling units and forms a complete control system where all components are fully integrated and optimised.

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OJ-Air2-MasterThe intelligent HVAC controller with RS485 Modbus communication

The intelligent HVAC controller with RS485 Modbus communication

OJ Air2 Master is a custom made and flexible controller, specifically designed for ventilation systems. It has a built-in web server with intelligent interface and a simple and attractive user interface, which allows optimal energy consumption control. OJ Air2 Master is financially attractive in association with complex ventilation units. It is a simple and reliable automation unit, which has been developed based on specialised technical competence and application knowledge.

  • Specifically designed for ventilation systems
  • Built-in web server with simple and intelligent interface
  • Simple and reliable

Product Downloads

Product Sheet, OJ-Air2-Master, English
File type/size:PDF ( 490.11 KB )
BACnet PICS 4.04, OJ-Air2-Master
File type/size:PDF ( 97.93 KB )
Product Catalogue, HVAC Controls & Drives, 2020
File type/size:PDF ( 2.79 MB )
Product Sheet, OJ-Air2Master, Russian
File type/size:PDF ( 484.60 KB )
BTL_Cert_30207_OJElectron_OJ-Air2.pdf
File type/size:PDF ( 1.11 MB )
Product Sheet, OJ-Air2Master, German
File type/size:PDF ( 475.26 KB )
EDE-file, OJ-Air2-Master, SW 5.09, 2020
File type/size:- ( 79.52 KB )
Modbus.BACnet protocol, OJ-Air2-Master, SW 5.09
File type/size:Excel ( 1.50 MB )
Instructions, OJ-Air2-Master
File type/size:PDF ( 734.44 KB )
Product Sheet, OJ-Air2Master, Danish
File type/size:PDF ( 491.11 KB )
Brochure, OJ-Air2, English
File type/size:PDF ( 17.52 MB )

Product FAQ

OJ Air2 alarmlist
Which pin is A and B in an RJ14 plug?

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Why do I get these warnings?

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Checklist

  • Check Max. air volume (could be set to low)
  • Check fan speed. If fan speed is 100% - check max fan speed.

 

How to connect a 9-pol sub-D connector to the RJ14 in the OJ Air2 system?

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How to connect two 24VAC transformers with an OJ Air2 Master?

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How to setup the OJ Air2 to send e-mail notification in caseo of Error?

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How to cure Alarm 71 and Alarm 73 on the OJ Air2 controller?

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Checklist

  • Check rotation direction of fan
  • Check max Hz
  • Check max motor current
  • Check v/f characteristics
  • Check filter pressure
  • Check damper position

OJ Air2 MasterCustomised
for you

We deliver high-quality product platforms as the perfect foundation for your customisation and differentiation. Having unique, customised solutions enables you to set yourself apart in the market on the exact parameters that are important to you and your customers.

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