Condensate Drain And Condensate Pump Systems; 13.6.1 Condensate Drain; 13.6.2 Condensate Pump; Figure 106Circuit Board Diagram - Emerson Liebert DS Series User Manual

Figure 106Circuit board diagram

PCB is configured for: MES-L
Current
Transformer
J1
J2
J3
J4
J5
J6
J7
J23
13.6

Condensate Drain and Condensate Pump Systems

13.6.1 Condensate Drain

Check and clear obstructions in tubing during routine maintenance.

13.6.2 Condensate Pump

• Disconnect power to unit using disconnect switch.
WARNING
!
Risk of electric shock. Can cause injury or death.
The Liebert iCOM microprocessor does not isolate power from the unit, even in the "Unit Off"
mode. Some internal components require and receive power even during the "unit off" mode of
the Liebert iCOM control.
Disconnect local and remote power supplies before working within.
• Check and clear obstructions in gravity lines leading to condensate pump.
• Remove sump and clean with a stiff nylon brush and flush with water.
• Inspect and clear clogs in discharge check valve and float mechanism.
• Reassemble and check for leaks.
J8
J9
HW Sensor Jumpers
J9: Low Voltage 200-240V
J8: High Voltage 380-600V
P11
P12
J24
1
1
J18
J17
J16
J15
J14
J13
J12
J11
Mains Voltage
Select Jumpers
J6: 200-208
J5: 230V
J3: 380-415
J2: 460V
J1: 575V
J10
To configure the PCB to the proper voltage,
the jumpers should be set as follows:
(* = Factory setting; do not adjust)
200V/208V: J6, J9, J15*, J17*, J19*, J10*, J23*, P11 pin (2-3)*
230V: J5, J9, J15*, J17*, J19*, J10*, J23*, P11 pin (2-3)*
380V/415V: J3, J8, J15*, J17*, J19*, J10*, J23*, P11 pin (2-3)*
460V: J2, J8, J15*, J17*, J19*, J10*, J23*, P11 pin (2-3)*
575V: J1, J8, J15*, J17*, J19*, J10*, J23*, P11 pin (2-3)*
Capacity adjust
(Default at 100%)
Sealed,
do not adjust
CURRENT TRANSFORMER
For MES-L 10, loop current-sensing wire twice
J25
through current-sensing coil.
J26
Green
LED
For MES-L 20, loop current-sensing wire once
Yellow
through current-sensing coil.
LED
143
Maintenance