RM Solar Combi Konverter Solar System Installation Manual - page 5
Fig 4 Cylinder Connections
Hot Flow Pipe
The hot outlet from the Combi boiler should be piped directly to the cylinder hot draw off (there should be
no taps on this pipe that serve baths, basins, sinks ect), but should be fitted with a suitable full flow gate
valve or similar so that if required the flow rate can be regulated as part of the commissioning process. In
circumstances where the combi is sited at a higher level than the cylinder then a non return valve should
be fitted to the hot outlet where it exits the Combi boiler to prevent gravity circulation.
The hot water draw off at the cylinder should be tee’d into the hot water pipe coming from the Combi (as
shown in Fig 5) and then the outlets ( taps, showers ect,) connected down stream of the cylinder so that
now both the Combi and the cylinder can supply hot water on demand.