White Rodgers 1F94-71 manual a Return of power after a power outage

•AUDIO PROMPTING — Each time you press a button, the thermostat will beep (this feature works only when the thermostat is attached to the wall and 24vAC 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 fea- ture works only when the thermostat is attached to the wall and 24vAC power is present to the thermostat).

•SYSTEM INDICATOR LIGHTS — The four lights on the upper right part of the thermo- stat indicate 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 heat pump heating and cooling cycles. The following may cause a time delay in COOL:

a) Return of power after a power outage.

b) Pressing SYSTEM to change operating

SWITCH

modes.

c)Pressing or , creating a call for HEAT or COOL too soon after a previous call.

•COMPRESSOR LONG TERM CYCLE PROTECTION — If your system begins to operate too soon after an extended power outage, the compressor may be damaged due to crankcase oil temperature change. This thermostat has a built-in time delay of one hour less than the length of the power loss (up to 12 hours). When power is re-

16