48
button until “stop test” appears at the bottom of
the “installer checkout” screen. Then press the
“Stop” button.
8. Cycle Testing
a. The Aux #1 configuration performed above
permits a N.C. set of contacts to be connected
to these terminals on the air handler or the
furnace controls.
b. When performing the optional AHRI cycle tests,
the Aux #1 terminals should be used to turn the
unit on and off.
c. When the system is desired to be operating
the air handler or furnace control should sense
continuity between the Aux #1 and Aux C
terminals. This continuity will tell the system to
turn on and the Test Mode selection outlined in
step 7 above identifies the mode and stage of
operation.
d. When the unit is desired to be off/not operating
the air handler or furnace control should sense
an open state between the Aux #1 and the Aux
C terminals.
9. Exiting the Test Mode
NOTE: While the test mode is active the thermostat
will not permit return to the home screen.
a. To turn the unit off either press the blue down
button until “stop test” appears at the bottom
of the screen and then press “stop test” on the
“installer checkout” screen or open the normally
closed switch attached to the air handler or
furnace Aux 1 inputs.
NOTE: Once the unit is requested to shut down
there is a 4 min. delay during which the test
mode cannot be changed.
IMPORTANT: The minimum run and minimum
off timers built into the UODC will be active
while operating in the test mode.
b. Opening the N.C. contact will not exit the test
mode, but will permit the system to perform a
soft shutdown.
c. In order for the system to return to normal
operating mode press the “Stop” button on the
“installer checkout” screen and then press the
back arrow in the bottom left hand side of the
screen two times. This will return the thermostat
to the home screen.
Appendix
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