Traid Triumph 1000, Руководство по эксплуатации и техническому обслуживанию

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TRIAD Boiler Systems, Inc.
West Chicago, IL
www.triadboiler.com
Safety Relief Valve Test:
1. Check that safety relief valve discharge piping is properly installed and supported.
2. With the circulating equipment in operation, turn the fuel burning equipment off and allow the
boiler water to reach a temperature approximately 80% to 85% of its normal operating
temperature.
3. After the boiler water temperature has been reduced, turn off the water circulating equipment.
4. On some boilers, it may be necessary to jumper out the circulating pump flow switch to allow the
burner to come on during the test.
CAUTION: On boilers requiring water flow to prevent damage to the boiler, do not jumper out the flow
switch. It may be necessary to isolate the boiler and hydrostatically test the safety relief valve or have the
safety relief valve removed and sent to a nationally recognized testing agency for testing.
5. Turn off the system supply and return valves, and isolate the expansion tank from the boiler.
6. Install a calibrated test gage.
7. After assuring that all personnel are clear of the safety relief valve discharge piping, turn on the
fuel burning equipment.
CAUTION: On boilers with small water storage capacity, very little heat will be required to raise the
pressure to the opening pressure of the safety relief valve.
8. The temperature at the start of the test is below the normal operating temperature, as
recommended it will not be necessary to change or jumper out the operating or high limit
temperature controls. If the water temperature is at normal operating temperature, it may be
necessary to readjust these limits upward to allow the burner to remain on long enough to reach
the opening pressure of the safety relief valve.
9. The safety relief valve should open* within an acceptable range above or below the set point. This
range is ±3 psi for valves set to open at or below 60 psig, and ±5% of set pressure for pressures
above 60 psig.
10. There will be a discernible point when the valve opens and provides water flow with no significant
rise in pressure. At this point log the pressure and turn off the fuel burning equipment.
11. If the safety relief valve does not open at the set pressure plus the allowable tolerance, shut off
the fuel burning equipment and do not operate the boiler until the safety relief valve has been
replaced.
12. If the safety relief valve opens at a pressure below the allowable tolerance, this is not necessarily
a dangerous condition but it can indicate a deteriorating condition or improper spring setting. The
valve should be replaced.
13. After the safety relief valve has closed, open the valve to the expansion tank, the system return
line, and the supply line to allow the boiler to return to its normal operating pressure.