2-12
Module 4 –
Wireless HVAC Thermostats
ST880ZB Optima Zigbee Thermostat
Section 2
Table 2.2: ST880ZB Optima Zigbee Thermostat – SETTINGS
COUNTRY
US
United States of America
CA
Canada
HVAC TYPE
HP
O – Rev Valve
Energized in Cooling (default)
B – Rev Valve
Energized in Heating
NON-HP
FAN HG
Fan operation for gas heating (default)
FAN HE
Fan operation for electric/oil heating
TEMP UNIT °F or °C
Fahrenheit or Celsius
OFFSET
-7°F to +7°F
(-4°C to +4°C)
Calibration offset: Value is added to the sensed temperature
SPAN
0 .5°F to 2 .0°F
(0 .25°C to1 .00°C)
Thermostat dead band – ex . Setpoint of 70°F with Span of 1°F
– Temperature will fall to 69°F without activating heat . Tempera-
ture will rise to 71°F without activating cooling .
Firmware Update
After pressing the MODE button to illuminate the screen,
preparing the ST880ZB for input, press & hold MODE for
3 seconds . When
appears on the screen, press
the - button 2 times (or the + button 3 times) to advance
to
. Press MODE,
is displayed
indicating an update is in progress . Once the Thermostat
returns to the home screen, the update has been loaded .