50 McQuay OM 920-1
Keypad/Display Menu Structure
LON/BACnetIP/BACnetMSTP Setup Menu
See the Installation & Maintenance Manuals below for detailed instructions
Alarm Delays Setup Menu
The Alarm Delays Setup Menu can be accessed when a level 2 password has been entered.
The default settings are the result of many years of testing and should not be changed.
The Alarm Delay Setup Menu should only be accessed by trained service personnel.
Analog Input Status Menu
The Analog Input Status Menu provides diagnostic information to qualified service personnel.
The items listed in this menu will provide current status information of the unit’s analog
inputs. The value shown is the input resistance shown in 1/10th of an ohm scale. Example:
MCB-AI1 (DAT sensor) shows a value of 181380, the actual resistance would be 18,138
ohms. This would translate to a temperature of 53.5°F.
IM 916 MicroTech III Rooftop unit controller - BACnet IP communications
IM 917 MicroTech III Rooftop unit controller - BACnet MSTP communications
IM 918 MicroTech III Rooftop unit controller - BACnet LON communications
Table 45: Alarm Delays Setup Menu
Menu Display Name Item Display Name Default Setting Range Password Level
Alarm Delays OffHtClDelay= 120s 0-999s 2
Frz DelayTime= 30s 0-180s 2
LP Delay= 2s 0-10s 2
LP Comp Delay= 65s 0-300s 2
Aflw Ignr Tm= 120s 0-999s 2
Sens Alm Dly= 30s 0-300s 2
Temp Alm Dly= 30s 0-300s 2
Table 46: Analog Input Status Menu
Menu Display Name Item Display Name Default Setting Range Password Level
Analog Input Status MCB-AI1= - 0-99999999 2
MCB AI2= - 0-99999999 2
MCB AI3= - 0-99999999 2