Lennox International Inc. 43558 - Manual (Page 24)

46
46 OPERATION
■ To review energy usage, press to cycle through Today, Yesterday, [num-
ber] Days, Last 30 days, and Total. Press again to return to normal mode,
or wait 15 seconds for the display to return to normal mode. You can
also return to normal mode at any time by pressing RET CLEAR.
■ For example: This LCD display shows Today’s usage to be 10 Hours, 26
minutes.
■ Press and hold for 3 seconds to reset the Energy Monitor’s counters
while in Energy Monitor mode. The display will blink, and all counters
will be cleared to zero.
Energy Monitor
ret-clear
en
er
g
y
m
o
n
it
or
The Energy monitor feature measures and stores the amount of
time the heating and air conditioning system operates. Usage
can be displayed for Today (since 12AM), Yesterday, This Month
(up to 30 days), Last Month (last 30 days), and Total (up to 999 Hrs. 59 Min.). By monitoring your energy usage, you see how
much the setback periods are saving and you can test program
adjustment to save even more. Use table on page 25.
Today
Hr Min
41653_model43558.pmd
47
47 Filter Monitor
Your thermostat also keeps a record of the number of hours your filter has been in use. To maximize your system’s performance and en-
ergy efficiency, change or clean your filter regularly.
■ When the total system run time for heat and cool reaches 500 hours,
“FILTER” will alternate on the display with the day to remind you to
clean or change your system’s filter. “FILTER” will continue to display
until the counter is set back to zero.
■ Press to review total filter usage. After 15 seconds, the display will re-
turn to normal mode, or you can hit RET CLEAR to exit immediately. The
Filter Monitor will display up to 999 hours and 59 minutes of usage.
In this example, the counter is at 410 Hours, 26 minutes.
■ To reset the Filter Monitor counter, hold for 3 seconds.
The display will blink, and the counter will be reset to zero.
filter
Filter
PM
System Fan
Temp
4
Filter
Hr Min
ret-clear