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• AUDIO PROMPTING — Each time you
press a button, the thermostat will beep
(this feature works only when the thermo-
stat is attached to the wall and 24 VAC
power is present to the thermostat).
• BACKLIT DISPLAY — When you press
any button on the thermostat, the display is
lit for approximately eight seconds (this
feature works only when the thermostat is
attached to the wall and 24 VAC power is
present to the thermostat).
• COMPRESSOR SHORT CYCLE PRO-
TECTION — To protect your compressor
from potential damage due to rapid cycling,
this thermostat has a built-in delay of 5
minutes between cooling cycles. The fol-
lowing may cause a time delay in COOL:
a)Return of power after a power outage.
b)Pressing
SYSTEM
SWITCH
to change operating
modes.
c)Pressing or , creating a call
for COOL too soon after a previous call.
• SYSTEM INDICATOR LIGHTS — The red
indicator light comes on whenever the heat-
ing or cooling system is operating. The
yellow indicator light comes on when the
second or third stages of heating or cooling
are operating.