Danfoss FP715 Timer / Combi Boiler

Just got a new combi boiler with its own time clock which is inadequate for my needs. My old boiler had a danfoss FP715 timer connected for 5 / 2 day control of water and heating separately.
Obviously water is sorted on demand with the boiler, but I want to connect my FP715 in to control the heating. The boiler accomodates this with a terminal block which you can wire in an external timer in place of the internal, and a room thermostat if desired.
Can somebody either confirm the following, or if I am wrong let me know how to do it right !
The FP715 has six terminals, live / neutral, water on / off, and heating on / off.
There is a live and neutral to the internal timer which I presume goes to the heating on / off on the FP 715 ?? I have already supplied the FP715 with a 3 amp supply so in order to wire the timer , do I put a link in the FP715 between the supply live / heating on, and instead of connecting the neutral from the boiler to the heating off terminal, I could just connect the neutral from the boiler to the neutral supply on the FP715 ?
Is this any where "near" correct ? I'd like to do it myself, but I can call on the services of an electrician if need be . . . .
thanks in advance for any help.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.