Maximum heat is produced at a lower level on the thermal-pin sections, leading to peak efficiency. TITANIUM COMPOSITE BURNERS—Provide quiet operation, corrosion resistance and improved combustion efficiency. Propane convertible – with accessory kit. CONTROLS—An automatic gas valve and continuous pilot or intermittent pilot provide quiet, dependable operation of the burners. Factory-installed safety components assure protection against overheating, pressure buildup, and low-water operation. INSUL

FACTORY INSTALLED FEATURES—A factory-installed drain is provided should the boiler ever need to be drained. Oil primary control prevents boiler in operation in the event of flame loss. SECTIONS TESTED—Each section is hydrostatically tested to 50 psig. Individual sections are tested to 125 psig at factory. Assembled sections are tested to 75 psig at the factory. The maximum allowable pressure is 50 psig for hot water boilers. EASE OF INSTALLATION—Circulator is shipped pre-wired with 6 ft bx condu

Circulator pump covered by 3-year warranty. All other parts are covered by a 1-year limited warranty. SPECIFICATIONS UNIT SIZE 042 075 112 150 187 225 Sections—Fine Grain Cast-Iron No. 2 3 4 5 6 7 GAS CONTROLS INTERMITTENT PILOT Gas Valve Honeywell Inlet Size In. 1/2 FPT Pilot Assembly Honeywell Spark Generator Honeywell Burners—Stainless/Titanium Alloy No. 1 2 3 4 5 6 Burner Orifice—Drill Size Natural 32 34 34 34 34 34 CONTROLS Limit Control Range °F 180–240 Pressure/Temperature Gage Psig °F 0–

Filtrol Package (Up to 75,000 Btuh Input) KBAFP0101DNK Filtrol Package (Up to 150,000 Btuh Input) KBAFP0201DNK Filtrol Package (Over 150,000 Btuh Input) KBAFP0301DNK High Limit Control KBAHL0101DNK Combustible Floor Base (2 thru 6 section models) KBASB0301DNK Combustible Floor Base (7 thru 9 section models) KBASB0401DNK Zoning Valve 3/4 in. KBAZV0101DNK Zoning Valve 1 in. KBAZV0201DNK Gas Conversion Kit Natural to Propane (After 1799V) KBANP0201DNK Gas Conversion Kit Propane to Natural KBAPN0201

This air must be : supplied through two openings of equal area; 'one ¡located above draft diverter relief opening and .other near floor.. Total free area of each openiiig should be equal to 1 square inch for, each 1,0.00 Btuhof boiler input. There should be a minimum of 100 square inches ¡for each opening. If air openings are directly to outdoors, minimum free area should be 1 square inch per 2,000 Btu .per hour of input rating, or in accordance with ANSIZ21.30 or the latest edition of “American

† A 4-in. vent damper is supplied. A 4-in. to 3-in. reducer is also furnished. —9— DIMENSIONS BW1 and BW2 MODELS 23 1.4 . 31 3.8 . 5 3.8 . 4 3.4. 1 1.4. SUPPLY 26 1.2 . 12 1.4. A 8. TEMPERATURE/ PRESSURE GAGE SPILL SWITCH DRAIN VALVE INT. PILOTROLLOUT SWITCH GAS 1 1.4. RETURN1 1.4. NPT AQUASTAT VENT DAMPERASME RELIEF VALVE CONTROL VALVE LEFT SIDE FRONT RIGHT SIDE DIMENSIONS (In.) CLEARANCES (In.) UNIT SIZE A VENT CONNECTION 037 8 3 070 11-1/4 5 105 14-1/2 6 140 17-3/4 6 175 21 7 210 24-1/4 7 245

Assembled sections are tested to 75 psig at the factory. The maximum allowable pressure is 50 psig for hot water boilers. PROPANE CONVERTIBLE—With factory approved conversion kit accessory. WARRANTY—The aluminum sections are covered by a limited 15-year warranty on the entire assembly. Circulator pump is covered by a limited 3-year warranty. All other parts are covered by a 1-year limited warranty. SPECIFICATIONS UNIT SIZE 050 075 100 Sections 1 GAS CONTROLS Gas Valve Honeywell Inlet Size In. 1/

The design is certified by' the American Gas Association for use with natural or propane gas. The typé S boiler can be used in steam systems with a maximum working pressure of 15 psig. The type W boiler can be used in water systems with a normal working pressure of 30 psig and is available for systems with working pressures of 50 psig or 100 psig when appropriate gauge and relief controls are used. All installations are subject to codes established by local utilities or other authorities having

317 240 5662 Installation Ins GAS-FIRED WATER OR STEAi'1 30ÎLER Cancels: 39234D23 NOTE: THESE INSTRUCTIONS MUST BE LEFT ON OR NEAR THE BOILER. The Model 234 is a low-pressure» sectional, cast-iron water and steam boiler. The design is certified by A.G.A. for use with natural, and propane gases. It is tested for a maximum working pressure of 100 psi on water and 15 psi on steam in accordance with ASME standards for cast-iron boilers. The boiler is available as a Type GW ■ Gravity, Type PW -

Your boiler has been designed and developed to provide safe, reliable, and economic operation when properly installed and maintained. Your boiler is a major investment for your home; therefore, you will expect it to perform at its best. By reading this manual, you can learn how to operate it, do recommended routine maintenance, and what to do if a problem should arise. Your new gas boiler should perform at the efficiency level built into it if you will contribute a little of your time and atten