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• AUDIO PROMPTING — Each time you
press a button, the thermostat will beep.
• 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 cy-
cling, this thermostat has a built-in delay of
5 minutes between cooling cycles. The
following may cause a time delay in COOL
or HEAT:
a) Return of power after a momentary
power outage.
b) Pressing
SYSTEM
HEAT-OFF-COOL-AUTO
to change operating
modes.
c) Pressing or to create a call
for COOL or HEAT too soon after a
previous call.
During lockout in the HEAT mode, the
green compressor (PUMP) LED will flash.
During lockout in the COOL mode, the
blower will operate, but compressor op-
eration will be delayed.
Auxiliary heat is functional during the com-
pressor lockout and can be used as needed
to maintain room temperature.
• COMPRESSOR LONG TERM CYCLE
PROTECTION — If your system begins to
operate too soon after an extended power
outage, the compressor may be damaged