Miele PDW 909 Schéma D'installation page 32

en - Installation notes
Cold water con-
nection
Hot water con-
nection
32

If it is necessary to install a residual current device (RCD) in ac-
cordance with local regulations, a residual current device type B
(sensitive to universal current) must be used.
An existing type A residual current device (RCD) must be exchanged
for a type B RCD.

If local and national installation specifications require equipotential
bonding, good galvanic contact must be guaranteed. Equipotential
bonding must have an earth current rating > 10 mA.
Water connection
For compliance to Regulation 4 of the water regulations guide please
fit the supplied double check valves to the on-site water supplies for
each inlet hose used. The non-return valve prevents water from the
water inlet hose from flowing back into the on-site drinking water
supply.
Non-return valves are supplied.
The flow pressure must amount to a minimum of 100 kPa and must
not exceed 1000 kPa. If the flow pressure is higher than 1000 kPa, a
pressure reducing valve must be used.
The machine must be connected to the water supply using the inlet
hoses provided.
 The connection points are subject to water supply pressure.
Turn on the stopcock slowly and check for leaks. Correct the posi-
tion of the seal and screw thread if appropriate.
For the cold water connection one stopcock each with a ¾" screw
thread is required.
If a water connection is not available, only a qualified installer may
connect the washing machine to the mains water supply.
The water inlet hose for cold water is not suitable for connection to
a hot water supply.
In the event that hot water is not available on site, a cold water supply
must be used for the hot water connection.
The required amount of hot water should be added to the cold water
volume.
Alternatively, the hot water connection should be blocked using the
blind stopper supplied with the machine and the machine controls
should be set to cold water intake by the service technician.
The same connection requirements as for cold water also apply to
hot water up to 70 °C.
A suitable connection hose with a threaded union is supplied with the
machine.