Traid Triumph 1000, Operating And Maintenance Manual

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TRIAD Boiler Systems, Inc.
West Chicago, IL
www.triadboiler.com
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After burner is at low fire, open burner control switch and let burner cycle to off position.

Shut pump system off.

Close supply and return header valves.
7 Operation
7.1 Safety relief valves
Safety relief valves are used to relieve excessive pressure generated within a boiler. The safety relief valve
(or valves) is the final line of protection against overpressure in the boiler. They discharge a volume of
steam and/or hot water when relieving. This is the most important single safety device on any boiler.
Valves on the TRIUMPH SS are spring loaded without full-opening pop action and have a factory set
nonadjustable pressure setting.
Safety relief valves
should be Try lever tested every 30 days of boiler service, after any period of inactivity,
and before any pop tests are performed. A pop test is to be conducted once a year, preferably at the
beginning of the heating season if the boiler is used only for space heating purposes.
All personnel concerned with conducting a safety relief valve test should be briefed on the location of all
shutdown controls in the event of an emergency, and there should be at least two people present. Care
should be taken to protect those present from escaping steam. All safety relief valves are to be
documented including the date into your log book. Excessive hand lifting will shorten the life of the valve.
7.1.2 Safety relief valve tests
Try Lever Test :
1. Check the safety relief valve discharge piping to determine that it is properly installed and
supported.
2. Check and log the system operating pressure and temperature.
3. Lift the try lever on the safety relief valve to the full open position and hold it for at least 5 sec or
until clean water is discharged.
4. Release the try lever and allow the spring to snap to the closed position. If the valve leaks, operate
the try lever two or three times to clear the seat of any foreign matter that is preventing proper
seating. As safety relief valves are normally piped to the floor or near a floor drain, it may take
some time to determine if the valve has shut completely.
5. If the safety relief valve continues to leak, it must be replaced before the boiler is returned to
operation.
6. Check that system operating pressure and temperature have returned to normal.
7. Check again to assure the safety relief valve has closed completely and is not leaking.