Xylem Bell & Gossett 4DWC, Инструкция по эксплуатации

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6 Troubleshooting
Caution: Before checking electrical connections within the control or attempting to replace
any components, turn off all branch circuits supplying power to the main control panel.
Alarm Circuit:
To test the alarm light and buzzer, press the "Test" button on the front panel. If either the
light or buzzer does not indicate, replace the light bulb or buzzer with the same type.
Control Board and Fuse:
If the "Power On" light is not illuminating on the front panel, check the voltage at TS1-1 and
TS1-2 with a voltage meter. The voltage should read 120VAC. If voltage is present, check
the fuse in the fuse box. If the fuse is blown, replace the fuse with the same type. The dry
contacts are rated for 120 VAC or 24 VDC, 1 amp max.
Floats:
The control board has individual float status indicators that will illuminate when the floats are
in the closed position. Check floats for entanglement, and a full range of motion. Replace
damaged floats.
6 Troubleshooting
4DWC Three Phase Simplex Control Panel Instruction Manual 11