Hi all,
Up until now I have mainly been dealing with bog standard Y and S plan heating systems with single pumps albeit sometimes adding smart control systems etc but in the last week I have come across a couple of installations where there are multiple valves and pumps in the system and I am curious if this is a new trend or just an anomaly in old houses where people have been bodging over the years.
For instance one install I worked on Friday contains 5 pumps and four 2 port valves - I was there trying to sort out the controller for the UFH - previous sparky couldn't work out how to program it so just used an ACL drayton time control to apply power to the UFH system controller based on a time schedule.
It is now working as expected but at least 3 pumps and one 2 port valve operate when there is a call for heat - 1 pump is in the UFH manifold, 1 in the flow to the UFH next to the boiler where there is also the valve and a final pump in the return pipework at the boiler.
In the CH loop there is one pump on the flow side and a 2 port valve as well as the boiler return pump which also starts when there is a CH demand.
Most bizarrely there's a pump and two 2 way valves in the flow to the HW (unvented cylinder - and I have no plans to touch anything relating to the cylinder itself!) which again spin up in addition to the return pump when there is a call for HW. The HW tank is right next to the boiler though so I can't believe there would be a flow issue!
Can anyone recommend any books or courses on the less typical types of setups? Everything I have managed to find so far is targeted at the modern Wendy box with a simple y plan.
Also are there any good 3 zone controller systems out there people would recommend?
Cheers
Paul
Up until now I have mainly been dealing with bog standard Y and S plan heating systems with single pumps albeit sometimes adding smart control systems etc but in the last week I have come across a couple of installations where there are multiple valves and pumps in the system and I am curious if this is a new trend or just an anomaly in old houses where people have been bodging over the years.
For instance one install I worked on Friday contains 5 pumps and four 2 port valves - I was there trying to sort out the controller for the UFH - previous sparky couldn't work out how to program it so just used an ACL drayton time control to apply power to the UFH system controller based on a time schedule.
It is now working as expected but at least 3 pumps and one 2 port valve operate when there is a call for heat - 1 pump is in the UFH manifold, 1 in the flow to the UFH next to the boiler where there is also the valve and a final pump in the return pipework at the boiler.
In the CH loop there is one pump on the flow side and a 2 port valve as well as the boiler return pump which also starts when there is a CH demand.
Most bizarrely there's a pump and two 2 way valves in the flow to the HW (unvented cylinder - and I have no plans to touch anything relating to the cylinder itself!) which again spin up in addition to the return pump when there is a call for HW. The HW tank is right next to the boiler though so I can't believe there would be a flow issue!
Can anyone recommend any books or courses on the less typical types of setups? Everything I have managed to find so far is targeted at the modern Wendy box with a simple y plan.
Also are there any good 3 zone controller systems out there people would recommend?
Cheers
Paul