28 PFS 155C - 315C OM 135
Menu 2, Comp#1 Status
Press the "NEXT MENU" key and Menu 2 will be displayed. This menu has two screens.
Screen 1, Line 1 indicates if the unit is running or off on alarm. Line 2, field 1 indicates the actual motor amps as
measured by a current transformer on one phase of the compressor wiring. Line 2, field 2 indicates the number of
compressor starts. Line 3, field 1 indicates the total compressor operating hours.
Press the “NEXT ITEM” key and screen 2 will be displayed. Screen 2, line 1 indicates suction line temperature.
Line 1, field 2 indicates the refrigerant temperature after it leaves the compressor and before entering the condenser.
Line 2, field 1 indicates suction superheat. This value is determined by subtracting the saturated evaporator temperature
from the suction line temperature. Line 2, field 2 indicates the discharge refrigerant superheat. This temperature is
determined by subtracting the refrigerant saturated condenser temperature from the refrigerant discharge temperature.
Item
Screen Line Display Field Range
1 OffAlarm 1
1 2 Motor Amps = x% 1
Starts = 2
3 Compr Hours 1
1 Suction Line = x °F 1
Discharge = x °F 2
2 2 Suct Suprht = x °F 1
Dsch Suprht = x °F 2
Menu 3, Comp#2 Status
Press the "NEXT MENU" key and Menu 3 will be displayed. This menu has two screens.
Screen 1, Line 1 indicates if the unit is running or off on alarm. Line 2, field 1 indicates the actual motor amps as
measured by a current transformer on one phase of the compressor wiring. Line 2, field 2 indicates the number of
compressor starts. Line 3, field 1 indicates the total compressor operating hours.
Press the “NEXT ITEM” key and screen 2 will be displayed. Screen 2, line 1 indicates suction line temperature.
Line 1, field 2 indicates the refrigerant temperature after it leaves the compressor and before entering the condenser.
Line 2, field 1 indicates suction superheat. This value is determined by subtracting the saturated evaporator temperature
from the suction line temperature. Line 2, field 2 indicates the discharge refrigerant superheat. This temperature is
determined by subtracting the refrigerant saturated condenser temperature from the refrigerant discharge temperature.
Item
Screen Line Display Field Range
1 OffAlarm 1
1 2 Motor Amps = x% 1
2 Starts = 2
3 Compr Hours 1
1 Suction Line = x °F 1
1 Discharge = x °F 2
2 2 Suct Suprht = x °F 1
2 Dsch Suprht = x °F 2
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