RBI Infinity Energy 2 Installation Instructions Manual

Contents

457.2.1 - Near boiler heatingpiping components1. Boiler system piping: boilersystem piping MUST be properlysized. Reducing the pipe size canrestrict the flow rate through theboiler, causing inadvertent highlimit shutdowns and poor systemperformance.2. Boiler system pump: Field supplied.The system pump MUST besized to meet the specified flowrequirements.3. Indirect water heater circulatingpump: Field supplied. The pumpMUST be sized to meet thespecified flow requirements.Consult the indirect water heateroperating guide to determine flowcharacteristics for the selectedproduct used.4. Boiler isolation valves: Fieldsupplied. Full port ball valves arerequired. Failure to use full port ballvalves could result in a restrictedflow rate through the boiler.5. Check valve: Field supplied. Checkvalves are recommended forinstallation as shown in Figures7-4 and 7-5. Failure to install thesevalves could result in a reverse flowcondition during pump(s) off cycle.6. Domestic indirect hot water isolationvalves: Field supplied. Full port ballvalves are required. Failure to usefull port ball valves could result ina restricted flow rate through theboiler.7. If the boiler is connected to anindirect water heater for domestichot water, an Anti-scald mixingvalve (Field supplied) MUST beinstalled.8. Unions: Field supplied.Recommended for unitserviceability.9. Pressure relief valve: Factoryinstalled. The pressure relief valveis sized to ASME specifications (seealso Section 7.2.2).7 - INSTALLATION - IB boiler water connections12. Header temperature sensorrelocation: The header temperaturesensor is factory installed (seeitem “39”, Figures 3-7 and3-10). However, in some pipinginstallations with primary/secondarylooping (see Figures 7-4 and7-5), the header temperaturesensor must be relocated in thesystem loop to better measure thetemperature changement. In orderto relocate the header sensor,operate as follow:a. - install a well useful for the headertemperature sensor, in the positionshown in Figures 7-4 and 7-5. Becarefully to respect the positionillustrated. The header sensormust detect the temperature of theprimary flow and of the secondaryflow.b.- remove the header temperaturesensor from its original position andrelocate the sensor into the wellprecedently installed. If the lengthof the sensor is not enough, youcan extend it using a #18 AWGcable.WARNING!!!WARNING!!! Since theheader temperature sensor wiresconduct 24 Vac, they must neverrun through conduits containing120Vac power wires or anelectrical shock hazard will exist.10. Indirect water heaters: fieldsupplied. This boiler may be pipedto an indirect water heater to heatdomestic hot water with the spaceheat transfer medium. The indirectwater heater is connected to thesystem supply piping. A pumpcontrolled by the boiler’s control willregulate the flow of water throughthe indirect water heater. Theindirect water heater’s temperaturewill be regulated by the boiler’scontrol. The boiler is pre-configuredto control the operation of the DHWpump with Domestic Hot WaterPrioritization programming.CAUTION!!! It is up to theinstaller to ensure the minimumsystem flow is not less than 4GPM at any time. If the flow islower, the boiler automaticallystops the burner.WARNING!!!WARNING!!! The NationalStandard Plumbing Code,the National Plumbing Codeof Canada and the UniformPlumbing Code limit thepressure of the heat transferfluid to less than the minimumworking pressure of thepotable water system up to30 psi maximum. Also, theheat transfer fluid must bewater or other non-toxic fluidhaving a toxicity of Class 1,as listed in Clinical Toxicologyof Commercial Products, 5thEdition. Failure to comply withthis provisions could resultin severe personal injury ordeath.11. Filter: Field supplied. A filter orequivalent multipurpose strainer isrecommended at the return pipeof the boiler to remove systemparticles from older hydronicsystems and protect newersystems. NOTICE! Filter will be ableto stops particles with an equivalentvolume of a spheres with diameterof 0.04” (1mm);