Service manual
SC Series Boilers – Installation and Service Manual
40
INDEX Section 10
Section Page
Dimensions and Specifications – SC Series Boilers .................................................................................... 2
About Our Manuals ....................................................................................................................................... 3
1 Lighting Instructions......................................................................................................................... 3
For Your Safety Read Before Operating............................................................................................. 4
Operating Instructions ......................................................................................................................... 4
To Turn off Gas to the Appliance ........................................................................................................ 4
2 Installation Instructions.................................................................................................................... 5
2.1 Receiving............................................................................................................................................. 5
2.2 Installation Codes and Requirements ................................................................................................. 5
2.3 Location............................................................................................................................................... 5
2.4 Gas Service Piping.............................................................................................................................. 6
2.5 Corrosive Atmospheres....................................................................................................................... 6
2.6 Venting and Combustion Air ............................................................................................................... 7
2.7 Water Piping...................................................................................................................................... 12
2.8 Corrosion Prevention (Internal) ......................................................................................................... 12
2.9 System Operating Requirements ...................................................................................................... 12
2.10 Pressure Relief Valve........................................................................................................................ 13
2.11 Electrical Wiring................................................................................................................................. 13
3 Startup Instructions ........................................................................................................................ 14
3.1 Pre-startup......................................................................................................................................... 14
3.2 Startup............................................................................................................................................... 14
3.3 Check Burner System ....................................................................................................................... 17
3.4 Aquastat Adjustment ......................................................................................................................... 17
3.5 Air Differential Pressure Switch......................................................................................................... 18
3.6 Gas Manifold Pressure...................................................................................................................... 20
3.7 Check Input & Orifices....................................................................................................................... 21
3.8 Check of Controls.............................................................................................................................. 22
3.9 Check for Gas Leaks......................................................................................................................... 22
3.10 Check the Condensate Drain Tube................................................................................................... 22
3.11 Installer’s Checklist............................................................................................................................ 23
4 Service & Maintenance Instructions .............................................................................................24
4.1 Service & Maintenance Instructions.................................................................................................. 24
4.2 Cleaning Procedure........................................................................................................................... 24
4.3 Service Checklist............................................................................................................................... 25
4.4 Caution: Water Replenishment ......................................................................................................... 26
4.5 Refractory Handling Procedure......................................................................................................... 26
5 Boiler Water Flow Data................................................................................................................... 26
6 Replacement Parts.......................................................................................................................... 27
7 Wiring Diagrams.............................................................................................................................. 29
8 Troubleshooting Guide................................................................................................................... 34
9 Notes.................................................................................................................................................37
10 Index .................................................................................................................................................40