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Installation
3.5.3 Electrical connection
The machine is intended for fixed electrical installation
This symbol on a machine part warns of electrical equipment. The machine must
be entirely non-live during service, turn off the power at the power switch and if
required, the switch should be locked to prevent unintentional operation. The
component may only be removed by a qualified electrician.
The machine's electronics are sensitive to electrostatic discharge (ESD), which is
why a static electricity wristband must be used when handling the electronics at
all times.
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There is a bushing for the electric cable at (6).
Information about electrical connections can be found on the machine's wiring di-
agrams. The wiring diagrams are inside the electrical cabinet door. Store the di-
agrams in the electrical cabinet after installation.
3.5.4 Water connection
A stopcock must be installed on the water supply pipes.
Connect the cold and hot water pipes according to the labels by the connection
points (1, 2). If the machine is connected to a hose, the internal diameter of the
hose must be at least 12 mm.
The hot water connection is fitted with a filter. The cold water connection is fitted
with a filter, non-return valve and vacuum valve. The connections have an internal
thread.
It is important that the water supply has sufficient pressure to ensure the correct
flow of water to the machine. The required pressure can be found in the TECH-
NICAL SPECIFICATIONS.
3.5.5 Compressed air connection
It is important that the air supply has sufficient pressure to ensure that the air en-
tering the machine is at the correct pressure (3). The required pressure can be
found in the TECHNICAL SPECIFICATIONS.
WD-18CW
The machine has a built-in mains switch.
The machine is equipped with a phase sequence detector. The machine
will not start if the phase sequence is incorrect. If the phase sequence is
incorrect, the display will show POWER SUPPLY FAILURE CHECK
EMERGENCY SWITCH.
15
Rev. 3,0 (201802)
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