Carrier 69NT40-541-001, Операция и обслуживание

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T-316 4–22
Cd37
Defrost Termination
Temperature Setting
(Bulb Mode)
This code, as with function code Cd36, is used in conjunction with bulb mode
and dehumidification. If bulb mode is active, this code allows the user to change
the defrost termination thermostat settings. If bulb mode is deactivated, the DTS
set ting returns to the default.
Cd38
Secondary Supply
Temperature Sensor
Code Cd38 will display the current secondary supply temperature sensor read-
ing for units configured for four probes. If the unit is configured with a Data-
CORDER, 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
Identification
Number Code Cd40 is configured at commissioning to read a valid container identifica-
tion number. The reading will not display alpha characters, only the numeric por-
tion 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 shall be displayed for 30 seconds, then time
out and return to the normal display mode. If the Temperature unit is °F, the VPS
units shall be CFM and in °C the VPS units shall be CMH.
Cd46 Not Used -
Cd47
Variable Economy
Temperature Setting The variable temperature “°C or °F” setting is used with optional 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.
Table 4–5 Controller Function Codes (Continued)
CODE # TITLE DESCRIPTION