White Rodgers 1F90W-71 User Manual download pdf (Page 17)

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be replaced. The word BATTERY will be

displayed continuously (non-flashing) when

24v AC power is not being supplied to the

thermostat and the thermostat is operating

on battery power only.

• 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

indicates system operation (see PARTS OF

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 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 , 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 dis-

abled.

Programming should be completed and batter-

ies should be installed before changing Group

A option switches #1 or #2.

NOTE

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