INSTALLATION AND OPERATION INSTRUCTIONS2SL 20-115 MODULATING GAS bOILERSAFETY CONSIDERATIONSSPECIFICATIONSWARNINGIf the information in thismanual is not followedexactly, a fire or explosionmay result causing propertydamage, personal injury, orloss of life.Installation, start-up and servicing of IBC boilers must be done with duecare and attention, and should only be performed by competent, qualified,licensed and trained heating technicians.Failure to read and comply with all instructions and applicable Nationaland local codes may result in hazardous conditions that could result inproperty damage and injury to occupants which in extreme cases mightresult in death.HAZARDS &PRECAUTIONSWARNINGPoints out a potentiallyhazardous situation whichmust be avoided to preventserious injury or death.CAUTIONPoints out a potentiallyhazardous situation whichmust be avoided to preventpossible moderate injury and/or property damageNOTEPoints out installation,maintenance and operationdetails that will result inenhanced efficiency, longevityand proper operation of yourboiler.DANGERPoints out an immediatelyhazardous situation whichmust be avoided in orderto prevent serious injury ordeath.SPECIFICATION SL 20-115CSA Input (Natural Gas or Propane*) - MBHCSA Input (Natural Gas or Propane*) - kWCSA Output - MBHCSA Output - kW20 - 1156 - 3419 - 1095.5 - 32A.F.U.E. 96.1%Minimum gas supply pressure (Natural Gas or Propane) - inch w.c. 5Maximum gas supply pressure (Natural Gas or Propane) - inch w.c. 14Power use (120Vac/60Hz) @ full fire - Watts (without pumps) 54Weight (empty) - lbs/Kg 115 / 52Pressure vessel water content - USG/Litres 2.9 / 11Maximum boiler flow rate - USgpm 14Minimum boiler flow rate - USgpm 2Maximum operating water pressure† - psig 30Minimum water pressure - psig 8Approved installation altitude - ASL 0 - 8000’Ambient temperature - Low (°F-°C)Ambient temperature - High (°F-°C)32°F / 0°C122°F / 50°CMax. relative humidity (non-condensing) 90%Minimum water temp. 34°F / 1.1°CMaximum water temp. (electronic hi-limit) 190°F / 87.8°CMaximum water temp. (mechanical hi-limit) 200°F / 93.3°CMax. ΔT - supply/return (electronic fence) 35°FMaximum equivalent vent length - 2”Each side (vent & air intake) - 3”(Natural Gas or Propane)Air intake options: either direct vent or indoor supply100’240’Supplied with the boiler - the iBC boiler is shipped with an accessory parts kitconsisting of the following items:• 1 x Wall mounting bracket• 1 x Condensate trap assembly• 1 x 30 psig pressure relief valve• 1 x outdoor temperature sensor• 6 x 1/4” x 2 1/2” Lag screws/w flat washers* natural gas boilers require propane burner kit - Part # P-103a - to be ordered if conversion to propane is required† boilers are shipped with 30 psig pressure relief valve