now that you're familiar with the
display of the HMI let's dig a little
deeper into the function of it if on or
off is not present on your HMI or if an
override button is present this
typically indicates that scheduling is
enabled and the unit can enter an
occupied or unoccupied State depending
on the scheduling settings and occupancy
timing pressing the override button also
manually forces the unit into an
opposing occupancy State temporarily for
60 Minutes during the occupied times the
unit can accurately Target optimal space
conditions regardless of varying space
Bas heat loads while unoccupied the
temperature set points can be set more
conservatively to sacrifice space
temperatures some while shifting the
focus to Energy savings we suggest
unoccupied setbacks of no more than 2 to
3° if on or off is displayed on your HMI
the unit does not have scheduling
configured and will need to be manually
enabled or disabled by pressing on or
off after the on button has been pressed
off will now be displayed indicating the
unit has been enabled and may now be
shut down by pressing off at any time
the climate control State idle should
change to blower and eventually to heat
or cool depending on current set points
and space conditions it is important to
remember that pressing the off button
will shut the unit down abruptly which
can be harmful to various mechanical
components off should only be pressed
when the unit is in an idle State at the
end of a shift or in the event of an
emergency pressing the temp Plus or temp
minus button will override the current
temperature set points and move both the
heating and cooling set points
respectively for a short period of time
the default temperature override maximum
is plus or minus 5° for 60 Minutes the
temperature offsets and override timer
can both be modified in the factory
configuration by tech support if
necessary it is important to note that
temperature overrides can be restricted
by discharge limits which are also
covered later so don't be alarmed if you
can temporarily decrease the temperature
set points by 5° but only increase them
by 2° contact tech support if a
temperature override is required ired
frequently this indicates the heating
and cooling set points need to be
fine-tuned further for the application
and we'd be happy to help with this