Catalog No.: 2000.205D Effective: 1-1-08 Replaces: 4-1-05Job:Engineer:Contractor:Prepared By: Date:Model: IndoorEFFICIENT 82% efficiency – highest of any atmospheric boileravailable 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 andtank-type water heaters are eliminatedLOW WATER OPERATING TEMPERATURE Operates with water temperature as low as105°F without condensingHeat Exchanger ASME Inspected and Stamped160 PSIG National Board Approved HeadersCast Iron Glass-lined – StandardBronze – Option A-1 Finned TubingCopper – StandardCupro Nickel – Option A-3 ASME Steel Tube Sheet Silicone O-Rings ASME Pressure Relief Valve45 PSIG – StandardPSIG ASME – Optional Temperature and Pressure Gauge,Shipped Loose Water ConnectionsLeft Hand – StandardRight Hand – Option A-6 Flow Configuration – Two-pass Pump – OptionalMounted, 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, Manual Reset On/Off Switch Flow Switch Economaster II Pump Time DelayGas Control Train Manual Main Gas Shut-off Cock Main Gas Pressure Regulator Redundant Safety Shut-off Valve Control Valve Firing ModeOn/Off (H4)Two-stage Firing (H3)Mechanical Modulation,110-170°F (H5)Mechanical Modulation,150-210°F (H1) FuelNatural GasPropane Gas Design Certified ANSI Z21.13Construction Front Controls Stainless Steel Burners Polytuf Powder Coat Finish Vent SelectionDraft Diverter – Option D-10Power Vent, Loose – Option D-2 Base (Optional)Combustible Floor Shield –Option J-1Temperature ControlsNote: H1 and H5 do not require acontrollerB-6 Two-stage – 100-200ºFY-241 Electronic Sequencer,1-4 StagesY-281 Electronic Sequencer,1-8 StagesAdditional Safety ControlsF-10 Low Water Cut-off ProbeI-1 High Limit Control, AutoReset, 240°FS-1 Low Gas Pressure Switch,ManualS-2 High Gas Pressure Switch,ManualRegulatory Agency RequirementsRaytherm ® - Type HHydronic Heating BoilersModels 182-400 - Indoor