Water Softener Programming; Flow Meter B3/4, Water Intake Quantity; Electronically Controlled Water Hardness (Egs); Mpeh Circulation Pump (No Slide Shutter Or Frequency Converter) - Miele G 4205 Technical Information

G 5xxx
2.6

Water Softener Programming

If the on-site tap water hardness is above 8 grains per gallon (140 ppm), the
water should be softened.
If water softening is needed:
 The water softener reservoir must be filled with softener salt.
 The water hardness level must be programmed manually. See the
separate programming-mode guide.
If water softening is not needed:
 Salt is not needed and should not be added.
 For instructions on adding water softener salt, see Section 050-4.28.
2.7

Flow Meter B3/4, Water Intake Quantity

The water intake quantity is monitored by a flow meter (B3/4) integrated in
the water diverter. The water flow is measured in the hard-water area. A
permanent magnet located in the flow meter axle activates an external reed
switch each time the axle rotates. The pulses supplied by the reed switch are
registered by the electronic and compared with a target value stored in
memory for the particular program or program step in operation. For each
0.26 gallons (1 liter) of water, approximately 200 pulses should be registered.
When the target value (maximum number of pulses) is reached, the water
intake step is stopped. If the target value has not been reached after 4
minutes, the program is interrupted and the pump operates. Then, depending
on model, either the Intake/Drain LED flashes or fault code F13 (see Section
080-3.13) is displayed.
Note:
For specific information regarding permissible minimum flow pressure, see
the appropriate operating/installation instructions.
2.8

Electronically Controlled Water Hardness (EGS)

The EGS valve is located in the water diverter.
To prevent or avoid possible glass corrosion, the wash water hardness level
should not fall below 3 grains per gallon in program steps with heating and 5
grains per gallon in program steps without heating. With supply water
hardness below 20 grains per gallon (under 16 grains per gallon in heating
steps), solenoid Y5 is activated to add a proportion of hard supply water to
the cabinet. The proportion added in this way depends on the water hardness
level set at the electronic or that measured at the sensor softener. The EGS
system is not active as standard in all wash programs, but this can be
programmed as an option if required.
2.9

MPEH Circulation Pump (No Slide Shutter or Frequency Converter)

In the MPEH circulation pump (approximately 85 watts), all three spray arms
are supplied with water at the same time. The total water circulation rate is
approximately 18 gallons per minute. Approximately 4 gallons per minute
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Technical Information