Hello,
its 11 pm I/,ve been on me feet all day and i am bushed.
Anyhoo I just come back from a customer with a
Britsh Gas 330+ unventented system with a mssive hot water cyliner upstairs.
The customer was complaining of no hot water.
Boiler on ground floor, the expansion vessel with PRV and pressure guage next to it and upstairs was a big old water cyliner. Fat but not tall.
Q1 - I noticed that the pressure guage next to the PRV was at zero but when i fired up the boiler it worked fine, all rads including those upstairs worked great. but still not hot water any ideas why?
Q2 - The hot water did not look liek a traditional indirect cyliner in that I could not see the flow and return pipes from the primary circuit entering or leaving the cylinder. I saw a total of foiur pipes. One was the hot water feed to taps, the other was cold water feed to bottom of cylinder and then two coming out of the side. one of which was connected to a shower pump????? was i seeing things or does anyone hae any idea. prehaps this is a special design system that BG use??????
Q3- Upstaris next to the cylinder on a pipe was a big ole pump connected to a timer sickot of its own. The timer was a mechanical one with metal pins that were inserted intot eh number around the dial which controlled on oof of the pump. I turned it but nothing happened. ALthought the switched on the timer flicked from on to off the pump did not beign to roatate. What is this pump for?
Q4- The pressure dial next tot he PRv did not move at all when the boiler was on for heating which wored well. Is it possibe the guage is broken?? is there anyway to check with out drainign down. If not how can it be checked once drained down???
thanks guys.
Regards, as always
DD368
its 11 pm I/,ve been on me feet all day and i am bushed.
Anyhoo I just come back from a customer with a
Britsh Gas 330+ unventented system with a mssive hot water cyliner upstairs.
The customer was complaining of no hot water.
Boiler on ground floor, the expansion vessel with PRV and pressure guage next to it and upstairs was a big old water cyliner. Fat but not tall.
Q1 - I noticed that the pressure guage next to the PRV was at zero but when i fired up the boiler it worked fine, all rads including those upstairs worked great. but still not hot water any ideas why?
Q2 - The hot water did not look liek a traditional indirect cyliner in that I could not see the flow and return pipes from the primary circuit entering or leaving the cylinder. I saw a total of foiur pipes. One was the hot water feed to taps, the other was cold water feed to bottom of cylinder and then two coming out of the side. one of which was connected to a shower pump????? was i seeing things or does anyone hae any idea. prehaps this is a special design system that BG use??????
Q3- Upstaris next to the cylinder on a pipe was a big ole pump connected to a timer sickot of its own. The timer was a mechanical one with metal pins that were inserted intot eh number around the dial which controlled on oof of the pump. I turned it but nothing happened. ALthought the switched on the timer flicked from on to off the pump did not beign to roatate. What is this pump for?
Q4- The pressure dial next tot he PRv did not move at all when the boiler was on for heating which wored well. Is it possibe the guage is broken?? is there anyway to check with out drainign down. If not how can it be checked once drained down???
thanks guys.
Regards, as always
DD368
Last edited by a moderator:
