Hypertherm DynaMAX 550P, Руководство оператора

Страница: 191 / 224

Installation
8
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 191
Utilities
Electrical power
The motor size determines the full load amperes, the overload settings, and the wire sizes. Refer to
the specific pump model in the Specifications section of this manual or to the system schematic
drawing.
The pump uses 3-phase alternating current (AC) electricity. Some components, such as valve
solenoids and sensors, use 24-volt direct current (VDC) electricity from a power supply in the
electrical enclosure.
Supply water
Water quality
The quality of the water supplied to the intensifier has a direct effect on the life of the intensifier and
consumables. Bad water quality increases operating costs by causing unnecessary wear on pump
parts and shortening maintenance intervals.
Before installing this equipment, test the quality of the supply water. Refer to Test the water quality
on page 93 for instructions. Softened water is necessary for most systems. Get advice from a water
specialist for recommendations for choosing a water treatment system.
WARNING
A line disconnect switch for incoming electrical power must be installed near the
power supply.
This is a supply-voltage disconnecting device or an energy-isolating device.
CAUTION
The primary feed circuit breaker or fuse must be the correct size to control inrush and
steady-state current.
Use a motor-start circuit breaker or an equivalent if time-delay high-inrush fuses are
not permitted by national or local codes.
The system schematic drawings are shipped in an envelope that is found inside the
electrical cabinet.
Do not use deionized water unless the system has stainless steel water fittings.
Deionized water can cause the plumbing parts to fail.
Local codes can require a backflow prevention valve to separate the pump from the
facility’s potable water.
Water quality reports that show pH, silica, and hardness levels are frequently
available for no charge from public utility water suppliers.
Reverse osmosis systems are available from Hypertherm.