RM Solar Combi Konverter Solar System Installation Manual - page 9
Fig 8 Sensor attachment
Commissioning
The important factor here is to ensure that the combi fires in response to the circulation pump and
delivers water at a suitably high temperature circa 60oC.
The flow rate through the combi should be reduced to a level at which a 60oC charging temperature is
achievable. Too high a flow rate might also result in a high velocity stream of water entering the top of
the cylinder and destroying the stratification required to maintain the ‘hot top’.
In normal circumstances the pump speed should be set at either speed 2 or 3 but a certain amount of
fine tuning may be required to suit the particular installation.
The temperature setting for the combi circulation pump is achieved by programming the SHR controller
using the separate instructions provided and should be set such that the pump stops operating once it
senses water at 55oC at the upper sensor position .A digital thermometer with a thermocouple probe is
invaluable in setting up the system.
The cylinder is fitted with a lower probe thermostat (fig 6) which is set at the highest temperature
permitted by the combi manufacturer for cold water feed. This is typically 30oC but may be higher if the
combi is ‘solar-compatible’.