AERCO AM Series Boiler User Manual - Manual (Page 38)

AM Series Boilers and Water Heaters
CHAPTER 3 – INSTALLATION
Page 38 of 156 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0100_0B
PRI - 07/14/14
Ph.: 800-526-0288
GF-146
3.11.6 Safety Relief Valve - Boilers
The boiler is supplied with a safety relief valve on each module that is factory installed. Each
pressure relief valve is set to 50 PSI. If a higher or lower rated PRV is required it must be field
supplied and installed.
If an AM Series H-Stamped unit is being used directly in a domestic water heating application
the relief valves must be replaced with appropriate temperature & pressure relief valves. These
valves are available from AERCO.
Pipe the discharge of the safety relief valve(s) (Figure 3-8) to a suitable drain to prevent injury in
the event of pressure relief. Each relief valve must have its own discharge piping, and not be
combined with any other piping, all the way to the point of discharge into a drain. Provide piping
that is the same size as the safety relief valve outlet.
Figure 3-8: Installation of Boiler Relief Valve
SAFETY RELIEF VALVE
TEMPERATURE AND
PRESSURE GAUGE
SAFETY RELIEF VALVE
TEMPERATURE AND
PRESSURE GAUGE
SAFETY RELIEF VALVE
TEMPERATURE AND
PRESSURE GAUGE
HOT WATER SUPPLY
HOT WATER RETURN
ELBOW
RELIEF VALVE
DISCHARGE PIPING
ELBOW
RELIEF VALVE
DISCHARGE PIPING
ELBOW
RELIEF VALVE
DISCHARGE PIPING