Benchmark 1500 - 2000 Boilers
CHAPTER 6 – SAFETY DEVICE TESTING
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AERCO International, Inc.
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Figure 6-7: Air/Fuel Valve Purge and Ignition Switch Locations
6.12 SAFETY PRESSURE RELIEF VALVE TEST
Test the safety Pressure Relief Valve in accordance with ASME Boiler and Pressure Vessel
Code, Section VI.
172
171
170
169
Ignition
Position
Switch
Purge
Position
Switch
AIR IN
TO BLOWER
VALVE
POSITION
DIAL
AIR/FUEL VALVE
SWITCH WIRING
BREAKOUT