© Copyright 2019 KE2 Therm Solutions, Inc., Washington, Missouri 63090
Q.2.60 March 2019
Page 24
KE2 Compressor
Sequencer OEM
pn 21768
Quick Start Guide
Critical Alarms & Cautionary Alarms
Abbre-
viation Alarm
Description
Critical
A01
Suction Pres Sensor [Group 1] Alarm
Group 1 suction pressure sensor is shorted, open or pressure out of
range.
▪
A02
Disch Pres Sensor [Group 1] Alarm
Group 1 discharge pressure sensor is shorted, open or pressure out
of range.
▪
A03
Suction Temp Sensor [Group 1] Alarm
Group 1 suction temperature sensor is shorted or open.
▪
A04
Disch Temp Sensor [Group 1]
Group 1 discharge temperature sensor is shorted or open.
▪
A06
High Superheat [Group 1] Alarm
Group 1 suction superheat is higher than
Max Suction SH
for longer
than
Min/Max SH Del
.
A07
Low Superheat [Group 1] Alarm
Group 1 suction superheat is lower than
Min Suction SH
for longer
than
Min/Max SH Del
.
▪
A08
High Disch Temp [Group 1] Alarm
Group 1 discharge temperature is higher than
Max Disch Temp
for
longer than
Max Dis Tmp De
l.
▪
A09
High Int Comp Temp [Group 1] Alarm
Group 1 digital compressor internal temp high. Will turn off digital
compressor until temp lowers.
A10
High Disch Pres [Group 1] Alarm
Group 1 discharge pressure is higher than
Max Disch Pres
for longer
than
Max Dis Prs Del
.
▪
A13
Comp Mod [Group 1] Alarm
Group 1 Compressor Module digital input is active.
A16
Oil Safety [Group 1] Alarm
Group 1 Oil Safety digital input is active.
A19
Hi Pres Safety [Group 1] Alarm
Group 1 High Pressure Safety digital input is active.
A22
Aux Brd Comms Alarm
Main Board unable to communicate with the Aux Relay Board(s).
▪
A25
Watchdog Alarm
Contact KE2 Therm.
A26
Email Failure Alarm
Email alert was not confirmed by email server provided after seven
consecutive attempts.
A28
High Disch Temp [Group 2] Alarm
Group 2 discharge temperature is higher than
Max Disch Temp
for
longer than
Max Dis Tmp Del
.
▪
A29
Evap Comms [Group 1] Alarm
Group 1 SiteView controllers not communicating.
A30
Evap Comms [Group 2] Alarm
Group 2 SiteView controllers not communicating.
A31
Disch Pres Sensor [Group 2] Alarm
Group 2 discharge pressure sensor is shorted, open or pressure out
of range.
▪
A32
Suction Temp Sensor [Group 2] Alarm
Group 2 suction temperature sensor is shorted or open.
▪
A34
High Superheat [Group 2] Alarm
Group 2 suction superheat is higher than
Max Suction SH
for longer
than
Min/Max SH Del
.
A35
Low Superheat [Group 2] Alarm
Group 2 suction superheat is lower than
Min Suction SH
for longer
than
Min/Max SH Del
.
▪
A36
Disch Temp Sensor [Group 2] Alarm
Group 2 discharge temperature sensor is shorted or open.
▪
A37
High Int Comp Temp [Group 2] Alarm
Group 2 digital compressor internal temp high. Will turn off digital
compressor until temp lowers.
A38
High Disch Pres [Group 2] Alarm
Group 2 discharge pressure is higher than
Max Disch Pres
for longer
than
Max Dis Prs Del
.
▪
Alarms - All Groups
Alarm Severity
Red LED - Critical Alarm: The controller will attempt to safely pump down the suction group. The group is unable to run safely with a critical
alarm, and the controller will cease refrigeration for that group. The controller is attempting to prevent a catastrophic system failure, such as
damage to the compressors. Critical alarms should be addressed immediately.
Yellow LED -
Cautionary Alarm: The controller will continue to function to the best extent possible given the system conditions, but the
alarm should be addressed as soon as possible.