Thermo King CSR-20 Series, Maintenance Manual

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4-20 Entering a Start of Trip Marker
µ
P-D Controller
CSR-20 & CSR-40, September 1999
Entering a Start of Trip Marker
To enter a Start of Trip marker, turn the unit On/Off switch
ON or operate the controller using battery power (press the
SELECT key):
1.
Press the SOT (Start of Trip) key. The display flashes
“ENTER SOT”.
2. Press the ENTER key. The display briefly shows “LOAD
SOT”. The controller inserts a SOT marker in the data
logger memory.
NOTE: If the ENTER key is not pressed within 10
seconds, the controller will default (return) to the
Standard Display.
3. The controller then returns to the Standard Display.
Displaying and Clearing Alarm Codes
If the Alarm LED is ON or flashing ON and OFF, use the
ALARM key to view the alarm code(s). Turn the unit On/Off
switch ON or operate the controller using battery power (press
the SELECT key):
1.
Press the ALARM key.
• The left display shows the number of alarms stored in
memory (e.g. ALM 2).
• The right display shows a two digit code for the most
recent alarm (e.g. 02).
!
IN RANGE DEFROST SUPPLY RETURN PWRLMT ALARM HEAT NULL MOD COOL
SETPOINT
TEMPERATURE
DATA
DATA
IN RANGE DEFROST SUPPLY RETURN PWRLMT ALARM HEAT NULL MOD COOL
SETPOINT
TEMPERATURE
DATA
DATA
2. Write down the first alarm code. Then press the DOWN
key to view the next alarm code.
3. Repeat step 2 until all alarm codes have been recorded.
4. After the last alarm code (ALM 1) has been viewed and
recorded, the left display flashes “ENTER” (the code
number of the last alarm still appears in the right display).
NOTE: Clear the Alarm codes ONLY after the
alarm codes are documented and problems
repaired. Clearing the codes erases them from
the controller Alarm display memory.
NOTE: If the ENTER key is not pressed within 10
seconds, the controller will default (return) to the
Standard Display.
5. To clear all alarm codes from the current display memory,
press the ENTER key. The display briefly shows
“ALARM CLEAR”.
WARNING: Some unit malfunctions will cause an
Alarm and unit shutdown condition. When the
alarm codes are cleared, the unit will start auto-
matically.
6. The controller then returns to the Standard Display.
IN RANGE DEFROST SUPPLY RETURN PWRLMT ALARM HEAT NULL MOD COOL
SETPOINT TEMPERATURE
DATA
DATA
IN RANGE
DEFROST SUPPLY RETURN PWRLMT ALARM
HEAT NULL MOD COOL
SETPOINT TEMPERATURE
DATA DATA
IN RANGE
DEFROST SUPPLY RETURN PWRLMT ALARM
HEAT NULL MOD COOL
SETPOINT TEMPERATURE
DATA DATA