12
User Manual
7602-443 COMMUNICATING, PROGRAMMABLE THERMOSTAT
Heat Controller, Inc.
•
Auto Fan Only (default):
During the
scheduled Programmed Demand Reduction
time (section 5.6.5.5.4), only auto fan mode
is allowed.
•
Allow Continuous Fan:
During the
scheduled Programmed Demand Reduction
time (section 5.6.5.5.4), the fan will operate
normally.
5.6.5.5.4 SCHEDULE - PROGRAMMED
DEMAND REDUCTION
This option allows setting a 7-day time schedule
for Programmed Demand Reduction.
NOTE
: This intermittent fan operation can also
improve the performance of air cleaning or special
fi ltration systems that locate the cleaning or fi ltration
media at the return air side of the fan.
5.6.7 SERVICE INFORMATION (System Status and
Fault Information)
These additional screens help the service personnel
to have a better understanding of what problems
might be occurring before arriving for service.
5.6.7.1 FAULT STATUS
Fault Status mode displays the active fault code as
well as the fi ve most recent stored fault codes that
occurred on the system.
SAVE
PREVIOUS
PROGRAMMED DEMAND
REDUCTION SCHEDULE
DEMAND REDUCTION
START
END
TIME
TIME
MON
8:00A
4:00P
TUE 8:00A
4:00P
WED 8:00A
4:00P
THU 8:00A
4:00P
FRI 8:00A
4:00P
SAT 12:00P
12:00P
SUN 12:00P
12:00P
Adjust the Programmed Demand Reduction
Schedule start and end time settings using
the up/down arrow buttons in increments of
10 minutes. Press the center button to save
changes.
NOTE
: To disable Programmed Demand
Reduction, set the Start time equal to the End
time for that day.
5.6.6 INTERMITTENT FAN
Intermittent Fan function allows the fan to run
periodically when the heating/cooling equipment is
off. Many times this functionality is used to improve
the performance of air cleaning or special fi ltration
systems.
When the Intermittent Fan function is active, the fan
output will be activated for the currently selected
Intermittent Fan On Time, and then operate using
the selected Intermittent Fan Off and On times until a
heating or cooling operation is activated again.
After the heating or cooling operation is complete,
the intermittent fan operation will resume with the
beginning of a new Intermittent Fan On Time on the ¼
hour.
• On Time (default Off):
options: Off, 5 to 20
minutes (in 5 minute increments)
• Off
Time:
options: 5 to 90 minutes (in 5 minute
increments)
SELECT
NO FAULT
NO FAULT
NO FAULT
NO FAULT
PREVIOUS
NO DEMAND REDUCTION
FAULT STAUS
ACTIVE FAULT
NO FAULT
LAST 5 FAULTS
LT1 LOW WATER TEMP
Navigate between system fault codes using the up/
down arrow buttons. Press the center button to
view more information about potential reasons why
the highlighted fault may have occurred.
DIRTY FILTER - HEATING
LOW AIR FLOW - HEATING
LOW WATER FLOW - CLG
OVERCHARGED
BAD PRESSURE SWITCH
PREVIOUS
NO DEMAND REDUCTION
FAULT CODE E2
HIGH REFRIG PRESSURE
