69-0654-5 OPERATION
21
Check how long heat/air conditioning has been running
To display the length of time that the heat or air conditioning has
been running:
• Since 12:00
AM
today, press once (Fig. 32).
• Since 12:00
AM
yesterday, press twice (Fig. 33).
• Since installation or since the last time you reset the
cumulative usage counter (see below), press three
times.
Reset the cumulative usage counter to zero
To clear the cumulative usage counter and start over at zero hours:
a. Press three times to display the cumulative reading.
b. Press to set the counter to zero (Fig. 34).
c. Press .
Change a program permanently
Follow the steps for programming the heating schedule or
programming the cooling schedule on pages 14 and 15.
Fig. 32
Fig. 33
Fig. 34
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