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4.2 Boiler Wire Harness and Controls Installation............................................................................18
4.2.1 Low Water Cutoff Probe and Control Installation.................................................................18
4.2.2 Triple Aquastat Temperature Controller Installation.............................................................19
4.2.3 High-Limit Temperature Controller Installation. ...................................................................20
4.2.4 Vessel Wire Box installation................................................................................................21
4.3 Pressure Relief Valve and Combination Gauge Installation.......................................................22
4.4 Domestic Coil (optional accessory)............................................................................................22
4.5 Preheater Assembly..................................................................................................................23
4.6 Burner/Vessel Assembly............................................................................................................24
4.7 Pump Discharge (Outlet) Tubing Installation..............................................................................27
4.7.1 Pump Discharge Tubing Installation.....................................................................................27
4.7.2 Pump Discharge (Outlet) Tubing Installation –Guidelines...................................................28
4.8 Hydronics Connection and Boiler Mixing Valve Installation........................................................28
4.8.1 Hydronics Installation –Key Points .....................................................................................28
4.8.2 Hydronics Set Up................................................................................................................29
4.8.3 Boiler Mixing Valve Set Up..................................................................................................30
4.9 Filling the System......................................................................................................................30
5. Exhaust Flue System Installation ....................................................................................................31
5.1 Barometric Damper Tee Installation...........................................................................................31
5.2 Flue Piping Installation...............................................................................................................31
5.3 Draft Gauge Installation (included with some packages)............................................................34
6. Electrical System Installation...........................................................................................................35
6.1 Wall Thermostat and Low Fuel Cut-Off Switch Installation (Optional Accessories)....................35
6.1.1 Wall Thermostat Installation................................................................................................35
6.1.2 Low Fuel Cut-Off Installation...............................................................................................35
6.2 Fuel Pump Power Connection...................................................................................................36
6.3 Main Electrical Connection ........................................................................................................37
7. Startup and Operation.....................................................................................................................38
7.1 Do’s and Don’ts/Tech Tips.........................................................................................................38
7.2 Burner Primary Control Operation..............................................................................................38
7.3 Safety Systems and Warnings...................................................................................................40
7.4 Boiler Startup.............................................................................................................................40
7.4.1 Fuel System Priming...........................................................................................................41
7.4.2 Starting the Boiler................................................................................................................42
7.4.3 Burner System Checkout ....................................................................................................43
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