Hello if I could make a suggestion it looks like #9 valve is on on the cold side of the manablock.you won't get any hot water with that valve in that position!!
I have a similar block turn off the cold so it doesn't pass and override the hot
Good luck!
2005 41'4 Atrium 8410 SE CAT
2017 weller's closed trailer
2014 Streetglide Special
200
10 Mini Cooper
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