Q.2.60 March 2019
Page 25
© Copyright 2019 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 Compressor Sequencer OEM pn 21768
Quick Start Guide
Crical Alarms & Cauonary Alarms (connued)
Abbre-
Alarm
A41 Sucon Pres Sensor [Group 2] Alarm
Group 2 sucon pressure sensor is shorted, open or pressure out of
range.
A44 Comp Mod [Group 2] Alarm Group 2 Compressor Module digital input is acve.
A47 Oil Safety [Group 2] Alarm Group 2 Oil Safety digital input is acve.
A50 Hi Pres Safety [Group 2] Alarm Group 2 High Pressure Safety digital input is acve.
A53
Main: Aux Input 1 Sensor [Group 1]
Alarm
Main Board, Aux Input 1 Temp Sensor is shorted or open.
A54
Main: Aux Input 2 Sensor [Group 1]
Alarm
Main Board, Aux Input 2 Temp Sensor is shorted or open.
A55
Main: Aux Input 3 Sensor [Group 1]
Alarm
Main Board, Aux Input 3 Temp Sensor is shorted or open.
A56
Aux Addr 1: Input 2 Sensor [Group 1] or
[Group 2] Alarm
Aux Board 1, Input 2 Temp Sensor is shorted or open.
A57
Aux Addr 1: Input 3 Sensor [Group 1] or
[Group 2] Alarm
Aux Board 1, Input 3 Temp Sensor is shorted or open.
A58
Aux Addr 2: Input 2 Sensor [Group 1] or
[Group 2] Alarm
Aux Board 2, Input 2 Temp Sensor is shorted or open.
A59
Aux Addr 2: Input 3 Sensor [Group 1] or
[Group 2] Alarm
Aux Board 2, Input 3 Temp Sensor is shorted or open.
Safety Alarms (Preempve Alarms)
Safety alarms S01-03 and S11-13 are preempve alarms and trigger before their respecve crical alarms are triggered.
Abbre-
Alarm
S01 Low Safety SH 1 [Group 1] Alarm
Group 1 sucon superheat is below Min Safety Suc SH for more than
5 minutes.
S02
High Safety Suc Temp 1 [Group 1]
Alarm
Group 1 sucon temperature is above Max Safety Suc Tmp for more
than 5 minutes.
S03 High Safety Disch Pres 1 [Group 1]
Group 1 discharge pressure is above Max Safety Pressure. Control-
ler will aempt to unload stages and not load anymore stages unl
pressure is well below Max Safety Pressure.
S11 Low Safety SH 2 [Group 2] Alarm
Group 2 sucon superheat is below Min Safety Suc SH for more than
5 minutes.
S12
High Safety Suc Temp 2 [Group 2]
Alarm
Group 2 sucon temperature is above Max Safety Suc Tmp for more
than 5 minutes.
S13
High Safety Disch Pres 2 [Group 2]
Alarm
Group 2 discharge pressure is above Max Safety Pressure. Control-
ler will aempt to unload stages and not load anymore stages unl
pressure is well below Max Safety Pressure.