Hypertherm Echion - Connect the electrical power

Installation
7
158 810770 Operator Manual Echion
Installation
Water-cooled system
Connect the electrical power
1. Attach a ground leg to the grounding lug in the electrical enclosure.
Use this table to find the minimum cross-sectional area of the external copper ground leg.
2. Connect electrical power to the primary circuit breaker. The breaker is labeled on the technical
drawing and in the electrical enclosure as CB-1.
Cooling in
This line carries low-pressure water from the local
utility or a chiller to the pump’s cooling loop.
Connect 1 end of this line to the supply water or to
the chiller.
Connect the other end to the ball valve at the heat
exchanger inlet .
 1/2-inch NPT female  1/2-inch NPT male
Cooling out
This line carries low-pressure water from the heat
exchanger to the chiller or to the drain.
Connect 1 end of this line to the to the chiller or to
the drain.
Connect the other end to the heat exchanger
outlet .
 1/2-inch NPT female  1/2-inch NPT male
CAUTION
This waterjet pump can leak up to 160 mA.
To reduce the effects of a high leakage current, connect the pump to a dedicated supply
transformer that has separate windings.
Use electrical parts that are certified by national or local electrical codes.
Hydraulic, water, and electrical connections can become loose during shipping and normal
operation.
Examine all connections at installation and during regular maintenance.
5
6
If the cross-sectional area (S mm
2
) of the
copper phase conductors supplying the
equipment is
The minimum cross-sectional area (Sp mm
2
) is
equal to or higher than 16 equal to S
higher than 16 and lower than or equal to35 16
higher than 35 S/2