Function; Foam Sensing; Foam When Heating During The Main Wash Cycle; Foam At Rinse Cycle Water Intake (In The Drum Vent Or In The Siphon) - Miele W 4840 Descriptive Technical Documentation
Hide thumbs
Also See for W 4840:
- Operating and installation instructions (60 pages) ,
- Technical information (90 pages)
Table of Contents
Advertisement
DTD no. 11-4800
2
Function
2.1
Foam sensing
2.1.1
Foam when heating during the main wash cycle
Heating the suds generates foam, and as foam pushes into the vents, the
pressure increases in the suds container.
If the analog pressure sensor registers a pressure increase of 60 mm wc above
wash level during heating, then
the heater is switched off for 2 minutes. It will only be switched on again when
the pressure increase drops to 15 mm wc above wash level; no fault
message for target temperature not reached is issued,
if foam sensing occurs three times, the fault message Check dosage is
issued at program end,
if foam sensing occurs three times, the fault message F 16 excess foam
dosage is saved, refer to F 16 Oversudsing, 070 3.17.
2.1.2
Foam at rinse cycle water intake (in the drum vent or in the siphon)
If foam is generated during rinsing, the pressure in the suds container rises faster
than it would based on the water intake.
If the analog pressure sensor registers a pressure increase of more than 40 mm
wc within 4 s during water intake, then
the water intake is interrupted for at least 15 seconds,
the water intake will only continue when the pressure increase drops to 15
mm wc,
the fault message Check dosage is issued at program end,
the fault message F 16 excess foam dosage is saved, refer to F 16
Oversudsing, 070 3.17.
2.1.3
Foam during spin cycle (water sheet)
The spin cycle generates foam, and a water sheet is formed. The pressure
increases, and the water sheet acts as a brake on the drum.
If the pressure sensor registers a higher pressure than standard for a spin speed
during a spin cycle, or if the target/actual speed difference is higher than
expected, then
the RPMs are reduced, or the spin cycle is stopped,
an additional rinse cycle is carried out if the spin cycle did not go for at least
60 seconds at 700 RPM.
22.12.2006, US_am
Descriptive Technical Documentation
This information should not be duplicated or passed on without Miele approval. All rights reserved.
030-3
Hide quick links:
Advertisement
Table of Contents
