Wall hung WC - soil pipe routing

[bblaukopf]

SWMBO wants a wall hung WC in the new bathroom. The current arrangement is a normal close coupled toilet, soil pipe exits horizontally, immediate 90 d egree bend right, and then a short run (well under 1 m) to the main stack.

I've ordered this frame for the new pan:

So far as I can see there is no reason why I can't hook this up to the exis ting soil pipe arrangement - but the installation instructions

don't seem keen on this arrangement - they want the first bend to point dow n, or no more than 45 degrees from the vertical. I see no reason why this s hould be the case. I doubt that there's anything physically restricting to

[Adrian]

Perhaps the outlet setup within the bog pan itself is shallower, to fit into the effectively reduced height, and that affects the outflow?

[bblaukopf]

It's certainly shallower - but Abacus allow this arrangement

I suspect that it may be something to do with continental regs? The Abacus one has a manual written in English, the Ceramic one is clearly translated....