WattMaster WM-WCC3-TGD-01B - Manual (Page 237)

WCC III Technical Guide 3-123
WCC3.EXE SCREEN DESCRIPTIONS
OUTDOOR SENSOR
INDOOR SENSOR:
Specifi es the location of the indoor and outdoor temperature
sensors to be used with this optimal start program. For example,
if the outdoor air temperature sensor is wired to analog input A3
on satellite number 1, 1A3 may be input for the outdoor air sensor.
Or, you may want to use a global analog which would allow you
to average or sort the temperature of several zones for the indoor
sensor.
MODE:
Specifi es the mode to be used. Because this is a choice fi eld, the list
of available choices will be displayed at the bottom of the page.
<Locked, Adaptive, Disabled>
Make your selection by pressing the <space bar> once for each
choice until the desired point type has been selected, and then press
<Enter> .
Locked:
The system will use the advanced time variable specifi ed by the
user and will not adjust these values.
Adaptive:
The system will automatically adjust the advance start time based
on previous system performance. This allows the WCC III system
to “fi ne tune” the morning start time so your building is at the target
temperature when the schedule it has been assigned to goes ON.
Disabled:
The optimal start will be disabled when this choice has been
selected. The optimal start will have no effect and the value input
for the “based on schedule” category of this optimal start will
provide the on/off schedule for the equipment.
STATUS:
The Optimal Start Screen will automatically display one of the
four messages below:
Status: <OFF, ON SCHEDULE, COOL START, HEAT START>
The messages correspond with the following descriptions below:
Off: The Optimal Start program is not in effect at the moment.
On Schedule: The Optimal Start program is not in effect at the
moment, but the schedule which is assigned to the Optimal Start is
in the “ON” mode.
Cool Start: Heat Start: The Optimal Start program is in effect
at the moment and is either initiating a COOL START or a HEAT
START.
REASON:
Done On Time: The space temperature was at target temperature
within 5 minutes of when the week schedule went on.
Done Early: The space temperature was at target temperature
more than 5 minutes before the week schedule went on.
Done Late: The space temperature was at target temperature
more than 5 minutes after the week schedule went on.
COOLING TARGET: _____ °F
HEATING TARGET: _____ °F
Specifi es the desired temperature to be maintained in the space by
the time the schedule associated with the optimal start goes on.
The cooling target temperature MUST be greater than the heating
target temperature. Also, the cooling target temperature must be
greater than or equal to the ON schedule setpoint of the zone in
question, and the heating target temperature must be less than or
equal to the ON schedule setpoint of the zone in question.
LAST START OCCURRED AT _____ ON _____
The system will automatically fi ll in the time and date of the last
start. This permits the user to check the system during the day to
observe when the Optimal Start Program began.
A Change of State Trend Log may also be used to log the start and
stop time of the Optimal Start. To use the Change of State Trend
Log, record the change of state for Sn (n being a number from 1 to
64 which corresponds to the optimal start in question).
WITH OUTDOOR =
AND INDOOR =
When the last start occurred, the Outdoor and Indoor temperatures
at the time of the start will automatically be recorded and displayed.
This will aid you in monitoring the Optimal Start Programs for
your system.
LAST START COMPLETED <REQUIRED MAJOR
ADJUSTMENT>
Locked Mode
The “required major adjustment” message will appear when
the Optimal Start Screen is in the “locked mode” if the space
temperature did not reach target temperature within 2 minutes of
when the week schedule for this screen went ON.
Optimal Start Screen