SupeRAC – 2F
For Models 93 to 405
12 ©MHS Boilers 29/05/2013
System water
Care must be taken to ensure that system pipe work is cleansed and flushed prior to filling
the boiler.
The system water must be treated with a good quality corrosion inhibitor and the water
condition must be maintained to ensure that the following values are observed:
pH 8.3
– 9.5
Hardness <100mg CaCO3/litre
Chlorides <50mg/litre
Oxygen <0.1mg/litre
Phosphates <30/mg/litre
It is strongly recommended to install coarse strainers to protect the boiler, pumps, valves etc
from the effects of solid debris or particles within the system.
CONTROL PANEL