Hi, I’ve just had my Samsung Gen 6 AHSP serviced and the engineer has pointed out a number of issues that I’d like you help to understand. The first is that the expansion tank for the heating has been mounted horizontally. His summary of why this an issue is:
This allows the internal bladder and air cushion to work properly and prevents water from pooling or air from migrating to the wrong end.
• If it’s horizontal on the floor, the bladder can’t expand evenly, the pre-charge may not behave as designed, and you could end up with waterlogging, poor expansion control, or premature failure.
• From a regulatory standpoint, G3 of the Building Regulations and the unvented hot water cylinder manufacturer’s instructions must be followed. Installing an expansion vessel contrary to those instructions would make the system non-compliant.
• Most BS EN 13831-certified expansion vessels specify orientation and require support brackets or wall mounts, not resting on the floor.
Looking the Zilmet documents for this model, he does seem to have a point! I’m speaking to him tomorrow to get his recommendations, but I just wanted to pick your brains about my options at this point ie do I have any other choice than to fix this if it is against building regs?
Thanks in advance!