Filter
Top Products
2100-444-003A
Page 22
4.2.4 OCCUPIED / UNOCCUPIED MODE SEQUENCE
In heating mode, activation of the Occupancy Override Button will change the Active Heating
Setpoint from Unoccupied Heating Setpoint to Occupied Heating Setpoint for a period of two hours. In
cooling mode, activation of the Occupancy Override Button will change the Active Cooling Setpoint
from Unoccupied Cooling Setpoint to Occupied Cooling Setpoint for two hours.
4.2.5 ALARM SEQUENCE
The controller will alarm on the following failures. Modem dial-out is initiated when any of the
following alarms occur.
High Space Temperature
When Space Temperature is above High Temperature Alarm Setpoint a critical alarm is logged
in the Event List and Output 12, Shelter Alarm, is energized. This is a self clearing alarm.
Low Space Temperature
When Space Temperature is below Low Temperature Alarm Setpoint a critical alarm is logged in
the Event List and Output 12, Shelter Alarm, is energized. This is a self clearing alarm.
High Space Humidity
When Space Humidity is above High Humidity Alarm Setpoint a critical alarm is logged in the
Event List and Output 12, Shelter Alarm, is energized. This is a self clearing alarm.
Low Space Humidity
When Space Humidity is below Low Humidity Alarm Setpoint a critical alarm is logged in the
Event List and Output 12, Shelter Alarm, is energized. This is a self clearing alarm.
Blower Failure Unit #1
If Blower operation is called for the blower airflow sensor is checked. If the airflow sensor does
not confirm that there is airflow, Output 7, Unit #1 Blower, is de-energized. After 30 seconds the
blower is energized again. If airflow is not sensed, Output 7, Unit #1 Blower, is de-energized.
After another 30 seconds the blower is energized again. If airflow is not sensed, Output 7, Unit
#1 Blower, is de-energized and locked out. A critical alarm is logged in the Event List and
Output 12, Shelter Alarm, is energized. Lead unit switches to lag unit. The Output Alarm must be
cleared to resume operation.