Service manual

T -318
3-- 17
Table 3-5 Controller Function Codes (Sheet 4 of 4)
Code
No.
TITLE DESCRIPTION
Cd38
Secondary Supply
Temperature Sensor
Code Cd38 will display the current secondary supply temperature sensor reading
for units configured for four probes. If the unit is configured with a DataCORDER,
Cd38 will display “-- -- -- -- -- .” If the DataCORDER suffers a failure, (AL55) Cd38
will display the supply recorder sensor reading.
Cd39
Secondary Return
Temperature Sensor
Code Cd39 will display the current secondary return temperature sensor reading
for units configured for four probes. If the unit is configured with a DataCORDER,
Cd39 will display “-- -- -- -- -- .” If the DataCORDER suffers a failure, (AL55) Cd39
will display the return recorder sensor reading.
Cd40
Container Identifica-
tion Number
Code Cd40 is configured at commissioning to read a valid container identification
number . The reading will not display alpha characters, only the numeric portion of
the number will display.
Cd41
Cd42
Not Applicable Scroll Units Only
Cd43 AutoFresh Mode
Code Cd43 is a user selectable mode of operation that allows the opening and
closing of a mechanical air vent door via a stepper motor. These selection modes
are as follows:
OFF -- Air makeup vent will remain closed.
User -- Allows for manual selection of the setting.
Delay --The opening of the door is based on selected time, return temperature
and flow rate (percent opened).
gASLM -- The opening is based percent open and CO2 and O2 selectable limits
(LM). This selection is only active if the unit has a CO2 sensor .
TEST / CAL (CO2 sensor option units only) -- The door will fully open and close
to allow the user to inspect its operation. If CAL is selected, the controller will
zero calibrate the CO2 sensor input.
If the unit is not configured with AutoFresh, the CD43 will display “--------”
Cd44 AutoFresh Values
Code Cd44 will display CO2 and O2 concentrations and limits. If the unit is not
configured for AutoFresh or a CO2 sensor is not installed, CD44 will display
“--------”
Cd45
Vent Position Sensor
(VPS)
Code Cd45 will display whenever the control detects movement via the sensor
unless alarm 50 is active. The code will display for 30 seconds, then time out and
return to the normal display mode. If the Temperature unit is degrees F, the VPS
units will be CFM and in degrees C the VPS units shall be CMH.
Cd46 Not Used --
Cd47
Variable Economy
Temperature Setting
The variable temperature “degrees C or degrees F” setting is used with economy
mode. Function code is “--------” when unit is not configured for economy mode.
Cd48
Dehumidification/-
Bulb Mode
Parameter Selection
Code CD48 is used to determine limits (between 60%-95%) for dehumidification
and/or bulb mode (CNF28) when active.
Cd49
Days Since Last
Successful Pre-trip
Code CD49 will display the number of days since the last successful Auto1,
Auto2 or Auto3 pre-trip sequence.