34
Clock Set
The Clock Set function is used to set the current time and date as well as enabling
Daylight Saving Time. To set the clock scroll through the menu tree, locate the Clockset
branch, select Date, and enter a new date and time. Select DST to enable Daylight Saving
Time. Daylight Saving Time is the default. For your convenience Daylight Saving Time
has been preprogrammed for the next several years. To reset the starting and ending DST
dates scroll through the DST menu tree, locate the desired year, and enter a new date.
If
your area does not subscribe to Daylight Saving Time, set the AMOUNT value to
000.
Diagnostics – Critical Alarm Codes
This section should assist the user in troubleshooting critical alarm codes messages that
have been displayed on the
BACview
. These alarms almost always require the operator to
correct the condition and reset the alarm before normal unit operation resumes.
Exceptions to this rule are noted in the alarm problem descriptions that follow.
ALARM CODE:
Low Discharge Temperature
PROBLEM:
The controller has detected a low temperature at the fan outlet and
has shut off the unit. See Freezestat section of this manual.
SOLUTION: If burner was operating prior to shutdown (check prior alarm log)
1.
Is the outside air (OA Temp) or room air (Room Temp) displayed on the
BACview
remote, reading 150°F or more?
a.
Yes. That sensor circuit or the sensor itself is shorted. Unplug the input
jack from the AireLogic controller. Did the display change to -40°F or
less?
1)
No. There is a short in the controller input. Replace the
controller.
2)
Yes. Disconnect the sensor wiring at the sensor. Connect an
ohmmeter to the sensor. If it is shorted replace the sensor. At
77°F the resistance should be 10KΩ. See thermistor output
curve for other temperatures. If it is not shorted, there is a short
in the wiring between the sensor and the input plug. Determine
cause and rectify. Refer to Appendix I for a typical 10KΩ
thermistor output curve.
b.
No. Continue.
2.
Is the discharge air temperature (DA Temp), displayed on the
BACview
remote, reading -40°F or less?
a.
Yes. That sensor circuit or the sensor itself is open. Jumper the input
for the sensor. Did the display change to 150°F or more?
1)
No. There is an open in the controller input. Replace the
controller.
2)
Yes. Disconnect the sensor wiring at the sensor. Connect an
ohmmeter to the sensor. If it is open replace the sensor. At
77°F the resistance should be 10KΩ. See thermistor output
curve for other temperatures. If it is not open, there is a break
in the wiring between the sensor and the input plug. Determine
cause and rectify.
b.
No. Continue
Содержание AireLogic
Страница 1: ...1 AireLogic Digital Control System User Manual Rev 04 11 13...
Страница 53: ...53 Appendix I 10K Thermistor Output Curve...
Страница 54: ...54 Appendix II Airflow Station Layout...
Страница 59: ...59 Typical Wiring Schematic RECIRCULATING WDF MODEL DIAGRAM...
Страница 60: ...60 NON RECIRCULATING WDF MODEL DIAGRAM...