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SYSTEM START−UP AND CHECKOUT
The Thermidistat Control is designed with a built−in installer test capability. It
allows easy operation of equipment without delays or setpoint adjustments to
force heating or cooling. To enable installer test mode, press and hold the fan
button for 15 seconds. After 10 seconds, the Thermidistat Control will enter
Configuration Mode. Continuing to hold the Fan button through 15 seconds will
cause the Thermidistat Control to enter Installer Test Mode. Pressing the Mode
button will change the system operating mode to test the heating and cooling
equipment. Auto Mode is not available during Installer Test Mode. If no buttons
are pressed for 15 minutes, the installer test mode will be terminated. Pressing
DONE at any time will exit installer test mode.
Heat − The first stage of heating will be energized for three minutes, then the first
and second stages (if a second stage exists) will turn on for an additional three
minutes. During the first stage of heating, the HEAT ON icons will be displayed.
During the second stage of heating (if one exists), the “2” next to the “On” will
be displayed if the system has a two−stage compressor (A2, h2, or H2 unit
types). The “auxiliary heat on” icon will be displayed if the second stage is
electric heat (HP unit type). While the heating test is active, the humidify output
can be toggled. On the programmable models, pressing the button below the
humidify icon shall toggle the state of the humidify output. On the
non−programmable models, pressing the features button shall toggle the state of
the humidify output.
Installer test for cooling is the same as described for heating above. COOL ON
will be displayed during cooling in Installer Test Mode. While the cooling test is
active, the dehumidify icon shall be displayed if the dry contact has been
configured as a DH output. On the programmable models, pressing the button
below the dehumidify icon shall toggle the state of the dry contact output. On the