Power Outage
Operation • 27
3.7. Power Outage
In case of a power outage, the last settings of the thermostat are kept in volatile
memory and retrieved upon power restore. The only exception not stored in
non-volatile memory is the Manual Override Mode (see
). The thermostat is equipped with an RTC (Real-Time Clock) device that
is connected to a backup battery. This lithium coil cell battery only maintains time
and date in the unlikely event of a power outage. The expected lifetime of the battery
is seven (7) years.
3.8. Advanced Settings
3.8.1. Thermostat System Configuration
Default Value: IDLE
The thermostat can control different types of HVAC equipment, and is configured
accordingly by the thermostat control configuration. The supported types are
Conventional Systems such as Rooftop Units (RTU) and Heat-pump Systems (HP).
To prevent any damage to the system upon first boot-up sequence of the thermostat,
once installed, the default control configuration is IDLE, which means that all
outputs are set in floating state to prevent any equipment issue.
Heat
1
-
W1
Y1
Y1+B
Activated
2
-
W1+W2
Y1+Y2
Y1+Y2+B
Cool
1
-
Y1
Y1+O
Y1
Activated
2
-
Y1+Y2
Y1+Y2+O
Y1+Y2
Stage
IDLE
(Default)
RTU (Roof-Top
Unit) Conventional
System
HP_O
(Heat-pump)
HP_B
(Heat-pump)
Table 3-10
- Thermostat Configuration
