LG AR-DR12-05A Installation And Operation Manual page 128

CONTROLLER
Sequences of Operation
BMS Watchdog
The BMS watchdog function verifies BMS connectivity. The watchdog is required for the BMS to take the place of a hardwired sensor. The
BMS toggles the watchdog variable from true to false within the timeout delay. If the timer expires, the controller falls back to hardwired
sensors until the BMS connection can be established. At this time, a BMS watchdog alarm activates.
The following variables may be used by the BMS in place of hardwired sensors:
• Outside_RH_from_BMS
• Outside_Temp_from_BMS
• Return_RH_from_BMS
• Return_Temp_from_BMS
• Space_1_CO2_from_BMS
Unit Alarms
Refer to the Alarms Data Table for a list of available alarms.
Global Alarm Output: The global alarm output is active via hardwired or BMS output. The output can be selected to energize based on any
alarm condition or to shut down alarms only.
Alarm Resetting Methods: The following methods may be used to manually reset the alarms:
• Push the Alarm button twice on the Handheld or Virtual (web-based) Keypad / Display to access the alarm reset screen and press Enter; or
• From the Alarms menu go to Reset Alarms; or
• Reset all alarms via the BMS.
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• Space_2_CO2_from_BMS
• Return_CO2_from_BMS
• Space_RH_from_BMS
• Space_Static_from_BMS
• Space_Temp_from_BMS