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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.
• SYSTEM INDICATOR LIGHT — The red light
on the upper right part of the thermostat indi-
cates system operation (see PARTS OF THE
THERMOSTAT).
On systems with Taco zone valves, the indicator
light will flash during the heating cycle.
• COMPRESSOR SHORT CYCLE PROTEC-
TION — 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 following 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
, creating a call for COOL
too soon after a previous call.
• TOTAL KEYPAD LOCKOUT — When Group
A option switch #1 is in the total keypad
lockout position (ON), programs cannot be
altered and all buttons are disabled.
Programming should be completed and batteries
should be installed before changing Group A
option switches #1 or #2.
NOTE
NOTE
PROGRAMMING