Hi Glowpot
Mine is the 24i junior the smaller brother of yours. The official tech sheet says the receiver is for the 24i, 28i and SI Mk2. So no problem. Type into Google the product code which is 7716 192 050 including the gaps inbetween numbers like I have click on the first link which should be onto Worcester Boschs website and download this manual in PDF format. It tells you this at the top of the page. If your still really not sure send me your email address and I can send you the replies from Worcester confirming this.
Mine is the 24i junior the smaller brother of yours. The official tech sheet says the receiver is for the 24i, 28i and SI Mk2. So no problem. Type into Google the product code which is 7716 192 050 including the gaps inbetween numbers like I have click on the first link which should be onto Worcester Boschs website and download this manual in PDF format. It tells you this at the top of the page. If your still really not sure send me your email address and I can send you the replies from Worcester confirming this.