14
and Friday) using Holiday Schedules 3 through 10, then proceed to the next step.
9.
Since the maintenance crew will be in the building at 5:00 AM on Monday, we
will need an override schedule to override part of the Holiday schedule we just
created. Navigate back to the Schedules screen using the
FN + 7
hotkey. Move
the cursor to select the
Override
field and press Enter. Set the start time to 5:00
AM and the stop time to 8:00 AM. Remember, the Override schedules override
the Holiday schedules and represent the period during which the unit is to be
Occupied. Set the
Month
field to
11
(November) and the
Day
field to
19
(Monday, the first weekday of Thanksgiving week in 2012). Your screen should
now look like this:
10.
Press the link key corresponding to the
Home
field on the screen to return to the
Home screen. The sample schedule is programmed and the units will
automatically switch between Occupied and Unoccupied modes based on the
daily, holiday, and override schedules.
Heating Night Setback
The Heating Night Setback function automatically cycles the unit “on” if the room
temperature falls below the Heating Setback temperature setpoint, and the unit is
scheduled to be “off”. If the unit is scheduled to be “off” and the Heating Setback
function turns the unit “on”, the unit will be cycled “off” once the room air temperature
has risen 2° above the Heating Setback setpoint. The default for this setpoint is 55°F. To
change the Heating Setback setpoint scroll through the SETPOINTS menu tree, locate the
Heating Setback setpoint and enter a new temperature. The allowable temperature range
is 40°F - 130°F.
Cooling Night Setback
The Cooling Night Setback function automatically cycles the unit “on” if the room
temperature rises above the Cooling Setback temperature setpoint and the unit is
scheduled to be “off”. If the unit is scheduled to be “off” and the Cooling Setback
function turns the unit “on”, the unit will be cycled off once the room air temperature has
fallen 2° below the Cooling Setback setpoint. This function toggles digital output DO1.
The default for this setpoint is 100°F. To change the Cooling Setback setpoint scroll
through the SETPOINTS menu tree, locate the Cooling Setback setpoint and enter a new
temperature. The allowable temperature range is 40°F - 130°F.
Auxiliary Unit Enable
The Auxiliary Unit Enable function overrides all other Auto Mode functions and
automatically cycles the unit into operation. This function is activated whenever a contact
is closed between the appropriate terminals on the unit’s terminal strip located in the
unit’s main control panel.
Heating and cooling functions use the Night Setback Setpoints.
See the Typical Wiring Schematic and Multiplexed Input sections of this manual for
more information. This function can be used with a twist timer, toggle switch, door
