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Step 4 — Check Thermostat Operation
The Legacy Series thermostats have a built--in installer test capability. Use it to
check thermostat and equipment operation without delays or setpoint
adjustments to force heating or cooling.
To enter the Installer Test mode, use the same process as is used to enter Installer
Configuration, only hold the FAN key longer. More specifically, press and hold
the FAN for about 15 seconds until the display reads In on the left and St on the
right for the programmable model, or InS in the smaller display for the
non--programmable model. The MODE will be OFF. The MODE key (upper
left) can now be used to select heat, cool, or emergency heat, if this is a HP
thermostat. Selecting one of the available modes will immediately command the
equipment to turn on in that mode. It will run for 3 minutes and then return the
mode to off. With HP thermostats (having 2 stages of heating), the test will run
for 3 minutes on each stage. If the thermostat is programmable, the clock display
counts down from 180 seconds while each stage operates. Changing the mode to
OFF will terminate any running test immediately.
During any test, the display icons will be displayed the same as for normal
operation of that stage, as follows:
SELECTED MODE
DISPLAY ICONS
off
off
cool
cool on
heat
heat on, aux heat on
Em Heat
aux heat on
To terminate the Installer Test mode press the DONE or FAN button. If the
thermostat is left in Installer Test mode, it will revert back to normal operation
after 15 minutes.
Summary of Contents for A07046
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