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Carrier 69NT40-561-201 - Page 50

Carrier 69NT40-561-201
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321
T-364
Table 35 Controller Function Codes (Sheet 3 of 6)
Cd31
Stagger Start Offset
Time (Seconds)
The stagger start offset time is the amount of time that the unit will delay at
start-up, thus allowing multiple units to stagger their control initiation when all
units are powered up together. The eight possible offset values are 0 (Factory De-
fault), 3, 6, 9, 12, 15, 18 or 21 seconds.
Cd32
Current Limit
(Amperes)
The current limit is the maximum current draw allowed on any phase at any time. Lim-
iting the unit’s current reduces the load on the main power supply. When desirable,
the limit can be lowered. Note, however, that capacity is also reduced. The five values
for 460 VAC operation are: 15, 17, 19, 21, or 23 amperes. The factory default setting
is 21 amperes.
Cd33 Humidity Setpoint
This is the value in percent to which the system will dehumidify.
In the test mode, the setpoint will be temporarily set to 1%, allowing the test of dehu-
midification. After 5 minutes, the normal setpoint is restored.
If Pretrip is initiated, this value will be set to “OFF” automatically.
Cd34
Economy Mode
(On-Off)
The current state of the economy mode option, “-----”, On, or Off. CnF22 determ-
ines whether economy mode offered. Economy mode is a user selectable mode
of operation provided for power saving purposes.
Cd35 (NOT USED) ----
Cd36 (NOT USED) ----
Cd37 (NOT USED) ----
Display Only Functions Cd38 through Cd40 are display only functions.
Cd38
Secondary Supply
Temperature Sensor
Cd38 will display the current supply recorder sensor (SRS) reading for units con-
figured 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
Cd39 will display the current return recorder sensor (RRS) reading for units con-
figured 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
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 will 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.
Cd40 is configured at commissioning to read a valid container identification num-
ber. The reading will not display alpha characters; only the numeric portion of the
number will display.
Cd41 Valve Override
SERVICE FUNCTION: This code is used for troubleshooting, and allows manual
positioning of the economizer solenoid valve, electronic expansion valve, and di-
gital unloader valve. Provides readings such as: Percent Capacity, EEV, Capacity
Mode, LIV and DUV. Refer to paragraph 6.20 for operating instructions.
Configurable Functions Cd43 is a user-selectable function. The operator can change the value of this function to
meet the operational needs of the container.
Cd43 (NOT USED) ----

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