Technical data

Procon
. L W P P.
A low water pressure switch has been incorporated into the boiler and therefore an external unit is not re-
quired. The activation setting of the switch is . bar, with a . bar di erential; therefore the system pressure
must be in excess of . bar for the switch to activate and allow the appliance to function.
. W T  S C
The entire primary system MUST be thoroughly cleaned and  ushed to remove debris,  ux residues,
etc. before opening the boiler isolation valves & admitting water to the boiler.
Particular care must be taken where the Procon boiler is being retro- tted into an old/existing system,
as system silt or magnetite can be very damaging to the new boiler.
Following cleaning and  ushing the system MUST be dosed with a good quality water treatment to
prevent corrosion and the formation of scale. A suitable corrosion inhibitor known as INIBAL is available
from RVR Limited.
FAILURE TO OBSERVE THESE REQUIREMENTS WILL RENDER THE WARRANTY ON THE APPLIANCE VOID.
Cleaning,  ushing and water treatment must be carried out in accordance with the requirements of
BS :, prior to commissioning the boiler.
Repeated draining and re lling of the system, without replenishment of water treatment, must be
avoided, as this is very damaging to the boiler. The boiler must not operate without the system water be-
ing correctly and adequately treated, and maintained, with an appropriate level of corrosion inhibitor.
. C W T U  S F
The Procon , ,  &  boiler has a heat exchanger fabricated from L Stainless Steel. It is
most important that the compatibility of any  ux is checked with the supplier before use, and that any  ux
manufactures recommendations are strictly followed with regards to use in conjunction with Stainless Steel.
. I  S
The return pipework MUST include some method of  ltering or straining. The  lter or strainer must be  t-
ted with isolation valves to allow easy cleaning with the minimum amount of water loss and water replenish-
ment.
. P (S) R V
In accordance with BS :  and BS : , as applicable, the installer shall install as suitably sized
Pressure (Safety) Relief Valve.
The location of this valve is important with respect to the applied pressure of the boiler circulation pump, it
is therefore recommended to locate the Pressure (Safety) Relief Valve on the  ow pipe i mm ediately adjacent to
the boiler; furthermore, there must not be any means of isolation between the boiler and the Pressure (Safety)
Relief Valve.
