Catalog No.: 2000.20P Effective: 12-1-07 Replaces: 4-1-05Job:Engineer:Contractor:Prepared By: Date:Model: Indoor/Outdoor:EFFICIENT 82% thermal efficiency – highest of any atmosphericboiler available todayTHERMAL SHOCK PROOF Twenty-year warranty against thermal shock damageup to 150°F differential Maximum operating temperature: 230°FLIGHTWEIGHT A floor load of 70 lbs./sq. ft. or lessHIGH RECOVERY Cuts fuel costs substantially because the standby andradiation losses normal to other boilers are eliminatedLOW WATER OPERATING TEMPERATURE Operates with water temperature as low as 105°Fwithout condensingHeat Exchanger ASME Inspected and Stamped160 PSIG National Board Approved Glass-lined Cast Iron Headers Copper Finned Tubing ASME Steel Tube Sheet Silicone O-Rings 45 PSIG ASME Pressure ReliefValve Temperature and Pressure Gauge,Shipped Loose Rear Water Connection Pump – OptionalBronze, 1/8 HP, 120 Volt, 1∅, 60 HzCast Iron, 1/8 HP, 120 Volt, 1∅,60 HzControls 120V, 60Hz, 1 Ph Power Supply 120/24V Transformer 100% Pilot Shut-off/Lockout Electronic, Intermittent Ignition (IID)Pilot High Limit Control - Automatic On/Off Switch Operating Limit Control Economaster II Pump Time DelayGas Train Manual Main Gas Shut-off Cock Main Gas Pressure Regulator Redundant Safety Shut-off Valve Control Valve Mechanical Modulation (H1) FuelNatural GasPropane Gas Design Certified ANSI Z21.13/CSA 4.9Construction Front Controls Stainless Steel Burners Polytuf Powder Coat Finish Vent SelectionDraft Diverter (Indoor) –Option D-10Stackless Top (Outdoor) –Option D-11High-Wind Top (Outdoor) –Option D-13 Base – OptionalCombustible Floor Shield –Option J-1 Vent Damper – Indoor Residentialmodels onlyNOTE: Unit cannot be installedoutdoors in residential applications.Raytherm® - Type HHydronic Heating BoilersResidential CommercialModel 133INDOOR MODEL