hot water

[Twizz]

Been off the tools for 12 years but still have the basics, need some advice please I now work as a maintenance man in a hotel.There was a lack of hot water to a guests shower 8:30 am the cylinder supplies 10 rooms and a busy kitchen.The boss said turn up the stat his theory is the hotter the water the further it goes,Stat was set at 60c turned up to 80c. hope this makes sense. the cylinder looks like a unvented with the TP on the top.
see photo of said cylinder
and can someone please explain the TP please and I can not find a name or make of cylinder. Thank you.

 

[PhoenixServices]

Has it had its yearly service. Might pay to have someone look at it.
Unless you have thermostatic mixing valves on all outlets all you will do is burn someone. (By turning it up)

 

[PhoenixServices]

Looking at the pictures it definetly needs looking at by someone with g3 due to that discharge valve.

 

[Ermintrude]

Poor pictures of a poor install g3 req ASAP!

 

[Twizz]

I dont think it has been serviced since it was installed, I'm I right in thinking this cylinder is unvented.If so there is no pre cylinder controls

 

[IDCHAPPY]

Phoenix is right, if there's no mixer valves them firing out DHW at 80° isn't advisable

 

[Chalked]

It's a"nabic" valve. If that's been turned up to 80 degrees, don't go near the outlet!! Turn it back down and find how it is being heated and there will be your problem with lack of hot water.

 

[Twizz]

chalked it's heated by a gas boiler that's 40+ years old

 

[Chalked]

chalked it's heated by a gas boiler that's 40+ years old

what controls? Ie timer, motorised valves etc.

 

[Twizz]

Will check tomorrow