Carrier 69NT40-541-001, Operation And Service

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T-316 7–36
7.23 ELECTRONIC PARTLOW TEMPERATURE RECORDER
The microprocessor based temperature recorder is designed to interface with the DataCORDER to log tempera-
ture with time. The electronic recorder will automatically record the return air, supply air, or both, based on the set-
ting of temperature controller configuration code CnF37, refer to
Table 4–4 . The recorder reads and records data
from the Controller in present time, under normal operating conditions.
If using the Electronic Partlow Recorder CTD P/N 12-00464-xx
Where xx= an odd number (example: 12-00464-03 )
The recorder will STOP when the power is OFF, and the pen tip will remain at the last recorded temperature on the
chart. When power is applied, and the power off period is less than thirty days; the pen tip will move to 25°C (77°F),
the chart will advance to present time, and the pen tip will move to the currently recorded temperature.
If the power has been OFF for more than thirty days, the recorder will NOT re-synchronize (the chart will not
advance to present time), the pen tip will move to the currently recorded temperature, and the recorder will resume
normal temperature recording.
If using the Electronic Partlow Recorder CTD P/N 12-00464-xx
Where xx= an even number (example: 12-00464-06)
The recorder will STOP when the power is OFF, and the pen tip will remain at the last recorded temperature on the
chart. When power is applied, and the power off period is less than thirty days; the recorder will retrieve the logged
data from the DataCORDER for the power off period and record it onto the chart, thereafter, the recorder will
resume normal temperature recording.
If the optional DataCORDER battery pack is being used, and the charge is too low to enable recording during the
power off period of less than thirty days, the pen tip will move to below the inner chart ring for the period when NO
data was recorded by the DataCORDER.
If the power has been OFF for more than thirty days, the recorder will NOT re-synchronize (the chart will not
advance to present time), the pen tip will move to the currently recorded temperature, and the recorder will resume
normal temperature recording.