TriangleTube Prestige Cascade System - Manual (Page 48)

45
Maintenance Procedures
Check Boiler Relief Valve
Inspect the relief valve and lift the lever to verify flow at
least annually or as recommended on the warning tag of
the valve.
Before manually operating the pressure relief
valve, ensure the discharge piping is directed to a
suitable place of disposal to avoid a potential scald
hazard. The discharge piping must be full size
without restriction and installed to permit com-
plete drainage of both the valve and line.
If after closing the valve, the valve fails to seat properly
or continually weeps, replace the relief valve. Ensure
the cause of the relief valve to weep is the valve itself,
not due to system over-pressurization caused by an
expansion tank that is waterlogged or undersized.
WARNING