OMM 1008-1
41
ALARMS Setpoint
Figure 19, ALARMS Setpoint Screen
Table 18, ALARM Setpoints
Description
No.
Default
Range
Pass-
word
Comments
Condenser Freeze
11
34.0
°
F
-9.0 to 45.0
°
F
T
Minimum cond. sat. temp. to start pump
Evaporator Freeze
10
34.0
°
F
-9.0 to 45.0
°
F
T
Minimum evap. sat. temp. to start pump
Motor Current Threshold
9
10%
1 to 20%
T
Min %RLA to consider that the is motor off
Surge Slope Limit
8
20 deg
F/min
1 to 99
deg F/min
T
Surge temperature (ST) slope value above
which alarm occurs. Active only if ST>SP7
at start
Surge Temperature Limit
7
50
°
F
2 to 45
°
F
T
At start, Surge Temp (ST) is compared to
this SP. Alarm at ST>2x SP.
High Discharge Temp-Stop
6
190
°
F
120 to 240
°
F
T
Max discharge temp to shut down
compressor
High Discharge Temp-Load
5
170
°
F
120 to 240
°
F
T
Sets discharge temp above which a forced
capacity increase occurs.
High Condenser Pressure
4
140 psi
120 to 240 psi
T
Max discharge pressure, stop compressor
Low Evap Pressure, Stop
3
26 psi
10 to 45 psi
T
Min evap pressure – stop compressor
Low Evap Pressure-Unload
2
31 psi
20 to 45 psi
T
Min evap pressure – unload compressor
Low Evap Pressure-Inhibit
1
33 psi
20 to 45 psi
T
Min evap pressure – inhibit loading
