White Rodgers 1F91W-71 - Manual (Page 16)

16
• BACKLIT DISPLAY — When you press
any button on the thermostat, the display is
lit for approximately eight seconds (this fea-
ture works only when the thermostat is
attached to the wall and 24 VAC power is
present to the thermostat).
• 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 blower will
operate during a time delay, but the air
circulated will not be cooled. The following
may cause a time delay in COOL:
a) Return of power after a power outage.
b) Pressing SYSTEM
HEAT - OFF - COOL - AUTO
to change operating
modes.
c) Pressing or to create a call
for COOL too soon after a previous call.
• SYSTEM INDICATOR LIGHTS — The red
indicator light comes on whenever the first
stage heating or cooling system is operat-
ing. The yellow indicator light comes on
when the second or third stages of heating
or cooling are operating.
• PROGRAMMABLE BLOWER CONTROL
— You may program the fan blower to run
continuously during any given program pe-
riod, regardless of the cycling of the heating
or cooling system. During programming,
after entering the time and temperature for
the time period, press FAN
ON - AUTO
until FAN
appears. To override constant fan, press
FAN
ON - AUTO
until FAN appears.