Carrier 69NT40-541-500 Operation And Service Manual page 62

CODE TITLE
Evaporator Fan
Cd36
Speed Select
Variable DTT
Cd37
Setting (Bulb Mode)
Display Only Functions - Cd38 through Cd40 are display only functions.
Secondary Supply
Cd38 Temperature
Sensor
Secondary Return
Cd39 Temperature
Sensor
Container
Cd40 Identification
Number
Cd41 Valve Override
T-363
Table 4–5 Controller Function Codes (Continued)
This is the desired evaporator fan speed for use during the bulb Dehumidification
and Humidification mode option.
(Replaced by Cd48 if CnF50, Enhanced Bulb Mode, is active.)
This code is enabled only if in the dehumidification mode (Cd33) and bulb mode
(Cd35) has been set to bulb. If these conditions are not met, alt will be dis played
(indicating that the evaporator fans will alternate their speed) and the dis play can-
not be changed.
If a dehumidification set point has been selected along with bulb mode then alt
may be selected for alternating speed, Lo for low speed evaporator fan only, or Hi
for high speed evaporator fan only.
If a setting other than alt has been selected and bulb mode is deactivated in any
manner, then selection reverts back to alt.
This is the Variable Defrost Termination Thermostat (DTT) setting to be used with
the optional bulb mode functionality. This item is only displayed if the bulb mode
option is configured on.
(Replaced by Cd48 if CnF50, Enhanced Bulb Mode, is active.)
Code Cd38 will display the current supply recorder sensor (SRS) 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.
Code Cd39 will display the current return recorder sensor (RRS) 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 re-
turn recorder sensor reading.
If a valid container id exists, the default display for cd40 will be cd40_XXXXX
where XXXXX is the 5th character through the 9th character of the container id.
Pressing the Enter key on cd40 will display id_YYYYYYY where YYYYYYY is the
5th character to the 11th character of the container id.
If no valid container id exists or the container id is blank, the default display will
have cd40 on the left display and the right display will alternate between _nEEd
and ___id. Pressing the enter key while on cd40 in the state will prompt the Set Id
Interface.
On start up if the container id is not valid, cd40 be brought up on the display for
the first minute of power up. This can be left by either entering a container id or
leaving the code select normally.
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.
Service Function - Cd41 is used for troubleshooting.
This code allows manual positioning of the SMV. Refer to paragraph 6.18 for op-
erating instructions.
4–30
DESCRIPTION