EHC SLIMJIM - Water Connections; System Pressures

7
GB-063C_f.615
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!
We recommend the use of an automatic bypass within this circuit.
 Ifabypassradiatorisusedanallowanceshouldbemadeforaminimumradiatorsizeof600mmx600mm
singleconvectororequalto2500Btutobeinstalledwithintheheatingcircuitandlockedopen.
 (Thiswillbelocatedintheroomwherethethermostatisinstalled).
 Tocomplywithbuildingregulations,PartLandPartJ(inScotland),roomandcylinderthermostatsmust
betted.
9. Water Connections
 Provisionsmustbemadeforthereplacementofwaterlostfromtheheatingsystem(sealedsystems).
ReferenceshouldbemadetoBSEN14336forthemethodofllingandmakeupofwater.Theremustbe
nodirectconnectionbetweentheboilerscentralheatingsystemandthemainwatersupply.Whenmains
waterisrequiredtollthesystemdirectly,alllocalwaterbylawsmustbeobserved,andanyconnection
mademustbedisconnectedafteruse.
10. Flushing
 Thesystemmust be ushedtowithin10%ofmainswaterPPMtoensurethatnodebrisistrappedin
theowsensorasthismayresultinboilerfailure.Whereexistingradiatorsandpipe-workareutiliseda
powerushmustbecarriedouttoremovedebris.
11. System Pressures
 Allboilersarepressuretestedinthefactory.Thenormalworkingpressureoftheboilershouldbesetto
approx1.0/1.5bar.Allsealedsystemsshouldcomplywiththerelevantbuildingregulationsandstandards,
includingBSEN13831-SpecicationforExpansionVessels.
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!
It is imperative that a pre-installed magnetic lter is removed and cleaned annually. Failure to
carry out this action will increase contamination of the boiler by the system residue.