Timme

Thanks for your reply The whole system is working but the floors in some of the rooms do not heat up to the thermostat set temperatures hence I am looking at flushing the system, changing the manifold set up, changing the thermostats to digital rather than the dial type We have had Mitsubishi out last week to service the system (ASHP) £300 of money wasted, am now looking for local company for the next years service The system works OK when the outside temperatures are not too low but as soon as the colder weather comes the heat pump struggles to get the rooms warm

Thanks for your reply Are you able to recommend a good quality reliable manifold make My set up consists of 2 x 9 port units coupled together a total of 17 working circuits I have heatmiser actuators, would these be a straightforward swap over onto a new replacement manifold

I am trying to understand my heating system I have an air source heat pump supplying 10 underfloor heating zones downstairs with 17 circuits and 3 radiators upstairs I have had it serviced recently and was made aware that the underfloor pipe circuits may have dirt and debris in them I am pretty handy and want to flush out these circuits and clean the flow meter tubes I am curious to understand why I have this current set up on the manifold whereby the actuators are on the top and the flow meters on the bottom, I was of the understanding that this should be the other way around to prevent air locks in the system The current manifold was installed in 2018 and doesn't look to have an easy way of adjusting the flow meter setting I have looked on line for set up instructions/commissioning but can't find any Should i replace this manifold for one that is more user friendly And Is there such a thing as a manifold that has auto balancing capability Any advice would be greatly received