WD-90GR FLEX / HC
Rev. 4.0 (202206)
Installation instructions
14
3.5.1
Electrical connection
Information about electrical connections is available on the machine’s wiring dia-
gram which is provided on delivery. Store the diagrams in the plastic pocket, lo-
cated in the electrical cabinet, even after installation.
•
The machine is designed for quick electrical installation.
•
The machine must be connected to a lockable power switch. This should
be placed on a wall, well-protected from water and from the steam which
escapes when the machine is opened.
It is important that the electrical connection is checked so that it is certain that the
live and neutral wires are correctly connected and not swapped over. It is also im-
portant to check at the same time that the earthing system connection is correct
and sufficient so that the machine’s electrical and personal security system is not
compromised.
After completing the installation, switch on the main switch and all circuit break-
ers.
3.5.2
Water connection, regardless of any options
•
A shut-off cock must be installed on the incoming pipe.
•
It is important that the water supply has sufficient pressure to ensure the
correct flow of water to the machine. The required water flow and pressure
can be found in the TECHNICAL SPECIFICATIONS. If the water pressure
is too low, a booster pump must be fitted.
The water pipes are connected at (1) and at (2). If the machine is connected with
a hose, this should be steel braided and have an internal diameter of at least 12
mm.
The hot water connection on the machine is fitted with a filter and has an internal
thread.
The cold water connection on the machine is fitted with a filter, non-return valve
and vacuum valve and has an internal thread.
3.5.3
Ventilation
The machine’s heat load for the room is stipulated in TECHNICAL SPECIFICA-
TIONS.
3.5.4
Steam (optional)
A shut-off cock must be installed on the incoming pipe. The required steam pres-
sure can be found in the TECHNICAL SPECIFICATIONS.
3.5.5
Condensation water (option)
A condensation connection (5) is only provided on steam-heated machines. The
pipe is connected to the system’s steam boiler.
Summary of Contents for WD-90GR FLEX
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