Hypertherm Echion - Water

Troubleshooting
5
128 810770 Operator Manual Echion
Troubleshooting
Water
Low-pressure water
The supply-water pressure is too low.
A pressure switch before the water filter senses the supply-water pressure. If the value on the
prefilter water-pressure gauge is lower than2.8bar(280kPa/40psi), the water pressure to the
intensifier is too low. This causes a fault.
The supply-water pressure or flow is not sufficient.
Make sure that the supply water meets requirements found in Specifications on page 135.
The supply-water pressure is too high.
If the value on the prefilter water-pressure gauge is higher than7.6bar(760kPa/110psi), the
water pressure is too high.
The boost pump is not needed.
The low-pressure water parts are rated for a maximum pressure of8.6bar(860kPa/125psi).
In environments with high supply-water pressure, the boost pump can increase the water
pressure to higher than the maximum. This can cause damage to the water filter and other parts.
If the value on the prefilter water–pressure gauge is higher than4.8bar(480kPa/70psi):
 In the electrical enclosure, turn the switch on the boost pump motor contactor to0.
 On the operator interface, turn OFF boost pump monitoring. Refer to Pump Fault
Behavior on page 168.
The boost pump bypass relief valve is not adjusted correctly.
Refer to Adjust the boost pump pressure on page 162 for instructions for adjusting the valve.