98
Rev 2.1
• Set the burner cutoff switch on the display panel to the off position.
• Wait for the unit to complete its postpurge.
• Turn off the power supply to the unit via the user installed disconnect switch.
• Close the unit’s main gas valve.
WARNING
FAILURE TO FOLLOW THE SHUT DOWN PROCEDURE WILL RESULT IN EXCESSIVE WEAR AND
WILL VOID YOUR WARRANTY.
6-8 After Startup Checklist
1. Check the gas line piping for gas leaks.
2. Check for leaks. Look for water on the floor. Check for water escaping from any part of the unit, valves or piping. Water
will continue to flow out of the drain for a few minutes after the unit stops running. If the flow does not stop after 10
minutes, a leak may be present in the coil.
3. Check for proper supports on the water piping and gas lines.
CAUTION
Keep flammable materials away from the boiler. In the event of the boiler overheating, shut the boiler
down by:
1) Turning off the manual gas valve located ON THE REAR OF THE BOILER and
2) Turning off the electricity to the boiler.
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