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INSTALLATION AND OPERATING INSTRUCTIONS
A. STEAM BOILER CONTROLS & TRIM
1. Safety Valve:
a. Pipe the boiler safety valve provided into the 3/4"
tapping on the left side of the boiler as shown in
Figure 6.1. Be sure that the relief valve is sized in
accordance with local code requirements. In
addition, be sure that the safety valve is designed
constructed and stamped in accordance with the
ASME Boiler and Pressure Vessel Code, Section IV.
b. If it is necessary to use a boiler relief valve larger
than 3/4" due to local codes, the relief valve
should be piped in the boiler skim tapping. Do
not increase the pipe size between the
boiler and the valve.
c. Pipe the discharge of the safety valve to a
maximum of 12" from the floor. Pipe the outlet
close to a floor drain.
6. CONTROLS & TRIM
Figure 6.2: Steam Boiler Tapping Location
Figure 6.1
Do not install any valves or restrictions between the
relief valve and the boiler. Be sure that the inlet to the
relief valve is the same or smaller pipe size than the
boiler connection.
CAUTION
Pipe the discharge of the relief valve away from any
traffic area. Failure to do this may cause injury if the
valve discharges.
CAUTION
Pipe the discharge of the relief valve using the full
size of the discharge connection.
CAUTION
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