CraigMac0113
24-04-2013, 04:04 PM
Guys. A little help is required.
Possibly have a Mitsi problem, Procon problem or BMS problem.
We have a number of Mitsubishi VRF systems on a site, 3 systems controlled by AG-150 No.1, and 3 systems controlled by AG-150 No.2.
Each AG-150 connected to a Procon IP50 interface. Which is used to talk to the BMS system and front end computer.
One of the Procon IP50s would intermitently flash the red LED, then the front end computer displayed 4 alarms in the space of 1 second for one AC unit address... Then another... Then another.
eg...
AC12- value 0.0
AC12- alarm On
AC12- value 8000
AC12- normal
We tried swapping interfaces, and the problem went with the interface. then we fit a new one, which seemed to work. Now after 6 weeks, the problems are back. But not as frequent.
No faults were found on the Mitsubishi system. And i know that 8000 is a Mitsi code for 'normal'
The BMS company are adament that the problem lies within the Air con, whereas i am sure the problem lies within the BMS.
Has anybody had a similar problem or know of how to sort it?
Possibly have a Mitsi problem, Procon problem or BMS problem.
We have a number of Mitsubishi VRF systems on a site, 3 systems controlled by AG-150 No.1, and 3 systems controlled by AG-150 No.2.
Each AG-150 connected to a Procon IP50 interface. Which is used to talk to the BMS system and front end computer.
One of the Procon IP50s would intermitently flash the red LED, then the front end computer displayed 4 alarms in the space of 1 second for one AC unit address... Then another... Then another.
eg...
AC12- value 0.0
AC12- alarm On
AC12- value 8000
AC12- normal
We tried swapping interfaces, and the problem went with the interface. then we fit a new one, which seemed to work. Now after 6 weeks, the problems are back. But not as frequent.
No faults were found on the Mitsubishi system. And i know that 8000 is a Mitsi code for 'normal'
The BMS company are adament that the problem lies within the Air con, whereas i am sure the problem lies within the BMS.
Has anybody had a similar problem or know of how to sort it?