Install Instructions

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TABLE OF CONTENTS
CHAPTER 4 - BOILER PIPING ........................................................................................... 13
4.1. General Piping Requirements ......................................................................................................13
4.2. Pressure Relief Valve ....................................................................................................................13
4.3. Boiler Air Vent ................................................................................................................................ 14
4.4. Low Water Cutoff Device ..............................................................................................................14
4.5. Additional Limit Control ................................................................................................................ 15
4.6. Backflow Preventer ....................................................................................................................... 15
4.7. Boiler System Piping Applications ...............................................................................................15
4.8. Expansion Tank and Makeup Water ............................................................................................16
4.8.1 Diaphragm Expansion Tank ................................................................................................ 16
4.9. Circulator ....................................................................................................................................... 16
4.10. Sizing Primary Piping .................................................................................................................... 16
4.11. System Piping - Zone Circulators ................................................................................................16
4.12. System Piping - Zone Valves ........................................................................................................16
4.13. System Piping - Through Boiler ................................................................................................... 16
4.14. System Piping - Radiant Heating ................................................................................................. 17
4.15. System Piping - Special Application ............................................................................................ 17
CHAPTER 5 - INSTALLING VENT/COMBUSTION AIR & CONDENSATE DRAIN ..........23
5.1. Installing Vent and Combustion Air ............................................................................................ 23
5.2. Installing Condensate Drain Assembly ...................................................................................... 23
CHAPTER 6 - GAS PIPING .................................................................................................25
6.1. Gas Supply Piping Connection .................................................................................................... 25
6.2. Natural Gas ................................................................................................................................... 26
6.2.1 Pipe Sizing ........................................................................................................................... 26
6.2.2 Supply Pressure Requirements ........................................................................................ 26
6.3. Propane Gas ..................................................................................................................................27
6.3.1 Pipe Sizing ............................................................................................................................ 27
6.3.2 Supply Pressure Requirements .........................................................................................27
CHAPTER 7 - INTERNAL WIRING ...................................................................................... 29
7.1. General Requirements ................................................................................................................. 29
7.2. Fuse Locations ............................................................................................................................. 29