- May 23, 2015
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- Heating Engineer (Has GSR)
Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
On a new system #1 get your installer back
An emmeti system and heatmiser controls is a good set up, the only reason it's not working is something wrong with the installation.
Noise is usually caused by three items:
Air
Unclipped pipes
Excessive pressure form multiple circulators (pumps)
Low or no flow is caused by:
Incorrectly set up flow regulators (they should ONLY be set up after they have been left fully open for a while to allow the system to stabilise - we usually do it 1 - 2 weeks after we've started to put heat into the system.
Blocked Pipes
Air Lock / air in the system - it can take up to 20 mins per loop to get all the air out.
Actuators not opening
Actuators connected to the wrong zone controller 🙂
TMV incorrectly set.
The solution for short cycling is a buffer tank. If you have enough radiators, then the water in that circuit can act as the buffer, in conjunction with the radiator circuit, sometimes an auto bypass is all that's needed.
The problem is that the return from an ufh heating system to the boiler can be:
a) lower temperature than radiators
b) lower flow rate than the boiler wants
Hence any system with ufh needs designing and installing correctly.
Done properly they are the best heating system you can have.
You may also need an auto bypass installing for the boiler circulator (pump), it may be that with no call for heat elsewhere, when only the ufh is calling for heat the main boiler circulator is over pressurising the ufh pump and that will make it noisy. An auto bypass will also help solve a) and b) above.
Don't do any of this yourself - Your installer should have sorted all this, get them back, don't stand for any truck about it being christmass
An emmeti system and heatmiser controls is a good set up, the only reason it's not working is something wrong with the installation.
Noise is usually caused by three items:
Air
Unclipped pipes
Excessive pressure form multiple circulators (pumps)
Low or no flow is caused by:
Incorrectly set up flow regulators (they should ONLY be set up after they have been left fully open for a while to allow the system to stabilise - we usually do it 1 - 2 weeks after we've started to put heat into the system.
Blocked Pipes
Air Lock / air in the system - it can take up to 20 mins per loop to get all the air out.
Actuators not opening
Actuators connected to the wrong zone controller 🙂
TMV incorrectly set.
The solution for short cycling is a buffer tank. If you have enough radiators, then the water in that circuit can act as the buffer, in conjunction with the radiator circuit, sometimes an auto bypass is all that's needed.
The problem is that the return from an ufh heating system to the boiler can be:
a) lower temperature than radiators
b) lower flow rate than the boiler wants
Hence any system with ufh needs designing and installing correctly.
Done properly they are the best heating system you can have.
You may also need an auto bypass installing for the boiler circulator (pump), it may be that with no call for heat elsewhere, when only the ufh is calling for heat the main boiler circulator is over pressurising the ufh pump and that will make it noisy. An auto bypass will also help solve a) and b) above.
Don't do any of this yourself - Your installer should have sorted all this, get them back, don't stand for any truck about it being christmass
Last edited:
S
Sharp Point
You have a flow fault between the boiler and ufh manifold , not the ufh loops. Suggested problems are.....
Physical Blockage in flow/ return pipes, valve turned off or debris.
Zone valve not opening gate
isolation valve on manifold not truly open, although inline handle says so. ( it can happen)
Pipe work seriously undersized in screed
System needs draining down and physically testing for clearance/ flow
Physical Blockage in flow/ return pipes, valve turned off or debris.
Zone valve not opening gate
isolation valve on manifold not truly open, although inline handle says so. ( it can happen)
Pipe work seriously undersized in screed
System needs draining down and physically testing for clearance/ flow
R
Ricky85
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