The Thermostat Buttons
7Sets the system mode (HEATing, OFF, COOLing, or AUTOmatic changeover).
8Selects fan operation (see #5, above).
9Runs display forward or backward through time, day, or anticipation settings during programming.
10Used with TIMEFWD and BACKTIME to set current time
and day of the week.
11Used during programming to set the day of the week to be programmed.
12Used to initiate or review programming (pro- gram viewing automatically begins with
Monday’s program; use ADVDAY button to view programming for following days).
13 Used with TIMEFWD and BACKTIME to select setpoint
temperatures.
14Used to manually override programming to hold at a selected temperature (when HOLD is displayed). Also used to copy one day’s programming to another day (when COPY is displayed).
15Used to start program operation after pro- gramming. Also used to return thermostat to program operation after being in HOLD mode.
16 (Red arrow) Raises temperature setting
(99°F or 37°C maximum).
17 (Blue arrow) Lowers temperature setting
(40°F or 4°C minimum).
18EMER light indicates that the system is in the emergency mode (the heat pump com- pressor is off and the auxiliary heat system
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