3
A. Codes .............................................................................................................................................................................................. 10
B. Boiler Sizing .................................................................................................................................................................................. 11
C. Considerations For Boiler Location ...........................................................................................................................................11
D. Locating e Boiler ......................................................................................................................................................................12
E. Combustion Air And Vent Pipe Requirements ........................................................................................................................12
F. Condensate Drain Requirements ................................................................................................................................................13
G. Foundation Requirements ........................................................................................................................................................... 14
H. Removal Of Existing Boiler From Common Vent System .....................................................................................................14
A. Supply And Return Lines ............................................................................................................................................................15
B. Pressure Relief Valve ....................................................................................................................................................................19
C. Expansion Tank And Make-Up Water .......................................................................................................................................19
D. Condensate Drain Piping ............................................................................................................................................................ 22
E. Filling Condensate Trap With Water .........................................................................................................................................23
F. Chilled Water Piping ..................................................................................................................................................................... 23
A. Connections And Termination ...................................................................................................................................................23
B. Installation ..................................................................................................................................................................................... 29
A. Check Gas Supply ......................................................................................................................................................................... 29
B. Connecting e Gas Piping ......................................................................................................................................................... 30
C. Checking e Gas Piping ............................................................................................................................................................30
A. Electric Power Supply .................................................................................................................................................................31
B. Install Your ermostat ................................................................................................................................................................ 32
C. Connect Circulator Pump Wiring .............................................................................................................................................. 32
A. Integrated Boiler Control (IBC) ................................................................................................................................................36
B. Gas Control Valve ........................................................................................................................................................................36
C. Hot Surface Igniter ...................................................................................................................................................................... 36
D. High Limit Aquastat Control .....................................................................................................................................................36
E. Dra Inducer Temperature Safety Switch .................................................................................................................................36
F. Casting Temperature Safety Switch ............................................................................................................................................. 36
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