Honeywell Prestige 2.0 THX9421 Manual page 40

®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
ISU Installer Setup
Number Name
3210 Heating Integral
3220 Heating Derivative
3240 Minimum
Compressor Off Time
3260 Extended Fan Run
Time in Cool
3260 Extended Fan Run
Time in Heat
4000 Number Of Schedule
Periods
4010 Pre-Occupancy
Purge Duration
4020 Type of Override
68-0311—07
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Table 4. Installer Setup (ISU) Table. (Continued)
Settings
0, 100 to 25,000 sec
0, 100 to 25,000 sec
Off
1 - 5 minutes
0, 30, 60, 90 seconds, 2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 12, 13, 14, 15
minutes
0, 30, 60, 90 seconds, 2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 12, 13, 14, 15
minutes
2 or 4 periods per day
Off
1 hour
2 hour
3 hour
Standard
Initiate Occupancy
IAQ WITH EIM
Residential,
Commercial
Default or Both
10,000 sec Commercial
0 sec Commercial
5 minutes Both
0 seconds Both
0 seconds Both
4 periods per Both
day
Off Commercial
Standard Commercial
40
Requires
EIM Notes
No The default Heating Integral is 10,000 seconds
which is appropriate for most applications. Do
not change this setting unless advised to do so
by Honeywell technical support.
The integral controls how much droop is used.
No The default Heating Derivative is 0 seconds
which is appropriate for most applications. Do
not change this setting unless advised to do so
by Honeywell technical support.
The derivative makes adjustments to the
algorithm for fast acting systems.
No The thermostat has a built in compressor
protection (minimum off timer) that prevents
the compressor from restarting too early after a
shutdown. The minimum-off timer is activated
after the compressor turns off.
If there is a call during the minimum-off timer,
the thermostat shows "waiting for equipment"
in the display.
No After the call for cooling ends, the thermostat
keeps the fan on for the selected amount of
time for increased efficiency. This may re-
introduce humidity into the living space.
No After the call for heating ends, the thermostat
keeps the fan on for the selected amount of
time for increased efficiency.
No Residential:
4 Periods = Wake, Leave, Return, Sleep
2 Periods = Wake, Sleep
Commercial:
4 Periods = Occupied 1, Unoccupied 1,
Occupied 2, Unoccupied 2
2 Periods = Occupied 1, Unoccupied 1
No Runs the fan 1 to 3 hours before each occupied
period to provide a comfortable workplace
upon arrival.
No Standard:
The system maintains temperatures
programmed for the occupied and unoccupied
time periods. Pressing OVERRIDE will allow the
user to make a temporary schedule change.
Initiate Occupancy:
The system maintains temperature at an
energy saving level until the Press to Start
Occupancy button is pressed by the user. The
system will then maintain a comfortable
temperature until the occupied period ends.
This option is recommended for cost savings
when the workplace is used infrequently or
arrival times change from day to day (example -
schools). Once the occupancy is activated by
pressing the Press to Start Occupancy button,
the user will still be able to perform a standard
OVERRIDE of the schedule.