Hot Water Boiler Startup Guidelines

Close the expansion tank vent and drain, and open the expansion tank isolation valve.

Isolate the expansion valve from the system.

Vent and drain the expansion tank. (correct)

Open the expansion tank drain valve.

Push the reset buttons for low water fuel cutoff and high limit control.

Set the control switch on the panel to low for boilers with high-low firing rate control.

Check the fuel and fresh air supplies.

Start the primary heating loop circulator pump. (correct)

Set the manual-automatic switch to manual for boilers with fully modulating firing rate control.

Keep it in the off position. (correct)

Set it to low for boilers with a high-low firing rate control.

Push the reset buttons for low water fuel cutoff and high limit control.

<p>Push the reset buttons for low water fuel cutoff and high limit control.</p> Signup and view all the answers

<p>Refer to site-specific procedures and ensure all on-line boilers are serviced by the expansion tank.</p> Signup and view all the answers