HydroTherm CS300 Installation And Operating Manual page 19

CS300 BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Figure 36
CAST IRON PRESSURE TEST
NOTE: Before filling the sections with water
temporarily set the flue collector on top of the
sections to locate the flue collector brackets, Figure
37.
Install a valve in the top and bottom tapping of the left
end section to vent any trapped air and allow boiler
draining after pressure test completion. Connect a water
pressure gage sized for the required test pressure to one
of the end castings. Plug all the other tapped openings.
Fill the cast iron sections with water leaving the top valve
open until all of the air has been bled from the sections.
"J" Bolt Installation Figure 37 Flue Collector Bracket Installation
NOTE: All assembled boiler sections shall pass the
hydrostatic tests prescribed in Section IV of the
ASME Boiler and Pressure Vessel Code.
CAUTION: Do not connect any boiler controls during
the pressure test or they will be damaged!
Completed boiler blocks must be tested as follows:
Steam Boilers - the assembled boiler sections shall be
subjected to a hydrostatic test pressure of not less than
45 psig, 315 kPa .
Maintain the test pressure while carefully checking for
leaks. If a leak is found it must be eliminated. Once the
cast iron sections have proven to be watertight drain them
and remove the plugs from any tappings that will be used
in service.
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