Technical Guide
Full Digital Module
11
Compressor LEDs
“R1” - This LED will light up when Compressor A1 is enabled and will
stay lit as long as Compressor A1 is active.
“R2” - This LED will light up when Compressor A2 is enabled and will
stay lit as long as Compressor A2 is active.
“R3” - This LED will light up when Compressor B1 is enabled and will
stay lit as long as Compressor B1 is active.
“R4” - This LED will light up when Compressor B2 is enabled and will
stay lit as long as Compressor B2 is active.
SERIAL #
D3
D4
R11
R12
R28
R29
R30
D12
D13
R53
R54
TB3
C20
R34 R50
SW2
4751
4751
4751
4751
OFF
OPTIONS
ALARM
STAT
COMM
1002
1002
1002
1002
RELAYS
ANALOG
R1
R2
R3
R4
Rc
AO1
AO2
GND
PWM1-
PWM1+
PWM2-
PWM2+
.01uF
Figure 5: LED Locations
Troubleshooting