OMM 1130-2 59
Water Cooled = Y Only or
TGZ Unit (R134a)
The Bypass Valve value shall be “None” (in place of XXX%) if the Valve/VFD Control setpoint = None
or VFD Stage. The VFD Speed value shall be “None” if the Valve/VFD Control setpoint = None, Valve
Setpoint, or Valve Stage.
Water Cooled = N Only
This screen shows the number of air-cooled condenser fans “on” for each circuit. This screen will show
the fans “on” whether they are actually connected to and controlled by the MicroTech II controller or not.
XXX.X
Screen Definitions – ALARM
If the unit is off on a shutdown alarm or running, but in a limit alarm condition, the cause and date will
appear in the upper screen. If there is a simultaneous occurrence of more than one alarm, the others will
appear in additional screens below the first one, accessed by the DOWN ARROW.
Either type alarm will light a red light in back of the LEFT-ARROW KEY. The light will go out when the
fault is cleared. To clear the fault, scroll down to the last screen and press ENTER. If other faults have
appeared, they will all be cleared at the same time. It is not necessary to have a password open to clear
alarms.
The last 25 alarms, either shutdown or limit, are shown in this menu and subsequent menus located under
it. ARROW DOWN from this menu will go to the next-to-last alarm, ARROW DOWN again will go to
the second from last, and so on through the last 25 occurrences. The screens are numbered (1), (2), (3),
etc.
Press ENTER to clear
all active alarms