I have purchased the Siemens connector kit WZ20310 for connecting the Siemens washing machine IQ800 WM16Y842 with the Siemens heat pump dryer IQ800 WT47Y701 and can associate myself with the previous recessions. Even without instructions succeeds in mounting problems. The connection kit is fixed with screws and on the top plate of the WM. The punched arrows have toward opening, thus pointing forward. The hole in the top plate using the supplied wood drill functions without problems, which of course remain when the World Cup should continue to be used alone. Even recent orders included only 4 screws for 5 holes, I used only the 4 fixed points in the corners, which I consider to be sufficient. A front panel includes at least forward the gap between the two devices.
The price sixfold expensive Siemens WZ20400 connection kit with drawer for iQ 800/890 dryer seemed, despite extract, then it is not necessary - it is for customers who do not need to extract, not because the laundry goes directly from WM in WT.
