3INSTALLATION AND OPERATING INSTRUCTIONSDC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160SPECIFICATION DC 15-95 DC 15-96 DC 20-125 DC 33-160CSA Input (Natural Gas or Propane) – MBH 15 - 95 15 - 96 20 - 125 33 - 160CSA Input (Natural Gas or Propane) – KW 4.4 - 27.8 4.4 - 28.1 5.6 - 36.6 9.7 - 46.9CSA Output – MBH 14.4 - 85.5 14.5 - 85.9 18.6 - 110.8 30.4 - 140.0CSA Output - KW 4.2 - 25.0 4.3 - 25.2 5.4 - 32.5 8.9 - 41.0DHW - CSA Input (Natural Gas or Propane) -MBH15 - 95 15 - 96 20 - 125 33 - 124DHW - CSA Input (Natural Gas or Propane) - KW 4.4 - 27.8 4.4 - 28.1 5.6 - 36.6 9.7 - 36.3A.F.U.E 95% 96% 95% 94%Min Gas Pressure (Nat. Gas or Propane) – inchw.c.5 5 5 5Max Gas Pressure (Nat. Gas or Propane) – inchw.c.14 14 14 14Power (120Vac/60Hz) - Watts @ full fire withinternal pump128 128 130 164Weight (empty) – lbs/Kg 97 / 44 105 / 48 105 / 48 105 / 48Pressure Vessel water content – USG/Liters 0.37 / 1.4 0.5 / 1.9 0.5 / 1.9 0.5 / 1.9Max boiler flow rate - USgpm 10 10 11 11Min boiler flow rate - USgpm 2 2 3 3Max Operating Pressure – Space Heating Coil -psig43.5 43.5 43.5 43.5Max Operating Pressure – Domestic Hot WaterCoil - psig150 150 150 150Approved installation altitude - ASL 10,000 ft 10,000 ft 10,000 ft 10,000 ftAmbient Temperature – Low (°F/°C) 32 / 0 32 / 0 32 / 0 32 / 0Ambient Temperature – High (°F/°C) 122 / 50 122 / 50 122 / 50 122 / 50Max relative humidity (non-condensing) 90% 90% 90% 90%Min water Temperature - Space Heating (°F/°C) 50 / 10 50 / 10 50 / 10 50 / 10Max water Temperature – Space Heating (°F/°C) 194 / 90 194 / 90 194 / 90 194 / 90Min water Temperature – Domestic Hot Water(°F/°C)104 / 40 104 / 40 104 / 40 104 / 40Max water Temperature – Domestic Hot Water(°F/°C)149 / 65 149 / 65 149 / 65 149 / 65Min flow rate to activate DHW heating - USgpm 0.5 0.5 0.5 0.5Max flow rate DHW heating - USgpm 3.0 3.0 4.0 4.0Max equivalent vent length 3" (each side) 120' 120' 120' 120'Max equivalent vent length 2" (each side) 35' 35' 35' 35'* Natural Gas boilers / water heaters require a Propane conversion kit (see page #3-2, Table 10) to be ordered separately if converting a Natural Gas boiler / waterheater to Propane. Propane (LP) boilers / water heaters require a Natural Gas conversion kit (see page #3-2, Table 10) to be ordered separately if converting aPropane boiler / water heater to Natural Gas.† boilers / water heaters are shipped with 30 psig pressure relief valveSPECIFICATIONS