TO INSTALLER NOTE: READ THESE INSTRUCTIONS CAREFULLY. THEY WILL SAVE YOU VALUABLE TIME WHEN ASSEMBLING THE BOILER. WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS: • Do not try to light any appliance. • Do not touch any electrical switch. Do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. Installation and service must be performed by a qualified installer, service agency or the gas supplier. INSTALLER, THESE INSTRUCTIONS TO BE AFFIXED ADJACENT TO THE BOILER. CONSUMER, RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE PURPOSES. FOR JACKET ASSEMBLY AND BURNER SET UP SEE SEPARATE INSTRUCTIONS. WESTCAST, INC. 260 NORTH ELM STREET WESTFIELD, MA 01085 TEL. (413) 562-9631 FAX (413) 562-3799 In Canada: 5211 Creekbank Road, Mississauga, Ont. L4W 1R3 (905) 625-2991 Fax (905) 625-6610 Page 2 SERIES 28HE BOILER INSTALLATION AND OPERATION INSTRUCTIONS CONTENTS Before You Start .................................................page 2 Boiler Ratings & Capacities................................page 2 Boiler Location ...................................................page 2 Combustion Air & Ventilation..............................page 3 Chimney & Vent Pipe Connections ....................page 4 Common Vent Systems......................................page 6 Boiler Assembly ................................................ page 7 General Piping Requirements ..........................page 14 Water Boiler Piping ..........................................page 15 Steam Boiler Piping..........................................page 18 Burner Installation ............................................page 21 Electrical Wiring ...............................................page 22 Boiler Operation .............................................. page 22 Boiler Checking & Adjustment..........................page 23 Boiler Maintenance ..........................................page 24 Repair Parts .....................................................page 25 Health Warnings .......................................... back cover BEFORE YOU START This manual covers the assembly, installation, operation and maintenance of a Series 28HE low pressure steam or hot water boiler. The 28HE Series boilers are supplied completely knocked down for field assembly, knocked down but with an assembled block or as complete factory assembled packaged boilers. All boiler components should be inspected for damage upon receipt. Any damage should be immediately reported to the trucker or wholesaler. All boiler components should be stored in a clean dry area. To obtain the safe, dependable, efficient operation and long life for which this boiler was designed, these instructions must be read, understood and followed. The Series 28HE boilers have been design certified by CSA. Each unit has been constructed and hydrostatically tested for a maximum working pressure of 15 psi for steam, 80 psi for water, in accordance with Section IV of the A.S.M.E. Boiler and Pressure Vessel Code for cast iron boilers. All aspects of the boiler installation must conform to the requirements of the authority having jurisdiction, or, in the absence of such requirements, to the National Fuel Gas Code, ANSI Z223.1/NFPA 54-latest revision or to the Installation of Oil Burning Equipment, ANSI/NFPA 31. Where required by the authority having jurisdiction, the installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1. In Canada, the installation must be in accordance with the requirements of CAN/CGA B149.1 or .2, Installation Code for Gas Burning Appliances and Equipment. In the Commonwealth of Massachusetts the installation of a gas burner must be performed by a licensed plumber or gas fitter. The owner should maintain a record of all service work performed with the date and a description of the work done. Include the name of the service organization for future reference. Direct all questions to your Smith Cast Iron Boiler distributor or contact the Smith Customer Service Department. Always include the model and serial numbers from the rating plate of the boiler in question. BOILER RATINGS & CAPACITIES Before undertaking the installation of the 28HE Series boiler check the boiler rating plate to ensure that the boiler has been sized properly for the job. The “Net I=B=R Ratings” specify the equivalent amount of direct cast iron radiation that the boiler can supply under normal conditions. Also ensure that the boiler has been set up for the type of fuel available at the installation site. BOILER LOCATION 1. Locate the boiler in an area ...