Home Automation O M N I S T A T RC-90B, Owner'S Manual

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6
FILTER REMINDER
Your thermostat logs the amount of time your heating and cooling
system has been running and gives you a reminder when it's time to
replace your filter.
" F I L
t
"
will be displayed every four seconds in the place of the
time display when it is time to change you filter. To clear the
reminder, press the Prog key. The display will return to normal in 10
seconds. Don't forget to change your filter!
ANTICIPATION
Your thermostat has a sophisticated control system designed to keep
you comfortable while saving energy. Part of the control system is a
feature called "anticipation", which anticipates the need to turn the
system on or off before the temperature is actually at the setting.
As humans, we perceive temperature as a combination of heat in the
air and heat radiated from the walls and surroundings. The thermostat
also measures a combination of air and wall temperature. When
heating, the air temperature rises faster than the wall temperature. The
thermostat will turn the heat off briefly to prevent overheating the air
while the wall temperature catches up. Your comfort is assured
without overshooting the heat setting, which wastes energy.
In summer, the thermostat will periodically run the cooling system to
circulate the air and remove humidity when the temperature is close,
but not above the cool setting. You will be more comfortable at a
higher cool setting, which saves energy.
Remember to allow some time for the thermostat to adapt to a new
setting.