User Guide

TStatSpec
TM
36
Heat Stages = configured compressor stages (cool stages) +
Configured Aux heat stages
If the user changes the number of stages to zero, the throttling
range remains unchanged.
The heat and cool throttling range values are selectable from
1-30 deg F(1-17 deg C).
When user enters some invalid values, TStatSpec™
automatically modifies it to nearest valid value.
Integral time:
This allows the user to configure the heat and cool integral
time values. TStatSpec™ automatically modifies the heat and
cool throttling ranges when the number of stages configured is
changed. Please see Table 1 for the default values of integral
time values for different stages.
If the user changes the number of stages to zero, the integral
time remains unchanged.
A value of 0 means that the integral time is disabled.
Valid range is 100-5000 seconds. 0 also is a valid value.
Values from 1 – 99 are invalid values. When user enters some
invalid values, TStatSpec automatically modifies it to nearest
valid value.
Derivative time:
This allows user to configure the heat and cool derivative time
for PID loop tuning. The value is selectable from 10 to 3000
seconds. 0 also is a valid value. A value of 0 means derivative
time is disabled. When user enters some invalid values,
TStatSpec automatically modifies it to nearest valid value.
Anticipator Authority:
Configure the anticipator authority value. The value is
selectable from 2 – 15. The default value is 4.
Select the Apply to Heat only field if it is to be applied for
heating only.
Configuring Scheduling page
Description:
The Scheduling page allows the user to configure the
schedule to controller.
Procedure:
Click the T7350 thermostat controller in the workspace to
open the configuration dialog box. Choose Scheduling if not
already displayed.
Fig. 34. Scheduling Page
To configure schedules:
T7350 has one schedule. This screen allows the user to
configure occupancy schedules for 8 days of the week-
Monday through Sunday and a holiday. Each day schedule
has four events per day with one mode/time per event. Event
1 and Event 3 can be configured to be in occupied or standby
or unconfigured modes. Event 2 and Event 4 can be
configured to be in unoccupied or standby or unconfigured
modes. Time for each event can be configured in the 24 hour
format.
Follow the procedure given below to configure a schedule:
Select the appropriate row and double click on a cell in the
Schedule control containing the days and events names.
Use the up and down arrows that appear near the end of the
cell to select the required time.
Select the appropriate mode from the 'Event State' section to
the right corner next to the schedule control. Select the
desired mode. Notice that the cell turns green if occupied
mode is selected, white if unoccupied mode is selected,
yellow if standby mode is selected, and Windows’ default
background color if the unconfigured option is selected.
NOTE: There cannot be more than two occupied, unoccu-
pied, or standby events per day. TStatSpec™ dis-
plays the error message when more than two
standby events are selected and does not proceed
further until any other mode is selected.
The scheduled events will execute in order based on time of
day.
For example, the thermostat may have events entered
sequentially with the following schedule:
Heat/Cool Stages 1 2 3 4
Default Throttling
Range
3478
Default Integral
Time
3100 2500 1650 1250