27
RSM-DEV1 Technical Guide
LCD SCREENS
Screen Descriptions
Alarm History Screens
The ALARM HISTORY screen displays past alarms, if any, and
how long ago the last of each type occurred. From the ALARM
HISTORY
Screen, press
<ENTER>
to scroll through the history
screens.
The ALARM HISTORY screens follow the same sequence as the
ALARMS screens but are abbreviated differently to allow space to
show the time since last occurence.
The first line is the ALARM NAME.
The second line shows how long ago each alarm last occurred. The
screen displays:
•
Minutes for the first 60 minutes of alarm occurrence.
• Hours for the next 72 hours of alarm occurrence.
• Days for the next 30 days of alarm occurrence.
Alarms clear after 30 days. Alarm history is not stored in
memory. If power is lost, the alarms will clear.
ALARM HISTORY SCREENS
Screen Text
Description
Screen Text
Description
NO ALARM
HISTORY
No alarm history.
COMM T/O
E-BUS Slave Timeout
CL TMP X
Coil Temp Failure
SP SENSE
No Suction Pressure Sensor Detected
LOH2OTMP
Low Leaving Water Temp
UNSAFESP
Unsafe Suction Pressure Detected
COMP X FL
Compressor Not Running
NOH2OFLO
Proof of Water Flow
HPX SENSE
No Head Pressure Sensor Detected
HI SHX
High Superheat Failure
HIGH HP
High Head Pressure Detected
BIN4 ALM
BI4 is open, if configured.
LOW SP
Low Suction Pressure Detected
MODBUS
MODBUS Not Detected
LOW SHX
Low Superheat Detected
HDLT ALM
High Discharge Temperature Detected
Table 10: Alarm History Screens
