Crown Boiler 24-10 Manual De Usuario

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Figure 12:  Hydraulic Draw-Up of Sections
B
.  HYDROSTATIC TEST — After the boiler sections 
have been assembled, it is essential that the boiler be 
hydrostatically tested before the canopy, flue cover 
plates, jacket, or piping is installed.
1.  Tankless Heater Installation
  If boiler is ordered with tankless heaters, install 
heaters with the gaskets provided.  Table IV 
on   Page 37 gives the maximum number of heaters 
permissible per assembly and the heater ratings.
2.  Plug all boiler tappings and fill boiler completely 
with cold water.
Figure 13:  Boiler Section Assembly
4.  EXAMINE BOILER CAREFULLY, INSIDE AND 
OUTSIDE, to insure against leaks from cocked 
nipples or through concealed breakage caused in 
shipping and handling.  This precaution is for your 
protection and will simplify handling of necessary 
replacements and adjustment claims.
5.  After making certain that there are no leaks, drain 
boiler and remove plugs for boiler trim and other 
connections.
3.  All completed boilers must satisfactorily pass the 
prescribed hydrostatic test.
a.  STEAM BOILERS:  The assembled boiler must 
be subjected to a hydrostatic test of  45 psig to 55 
psig.
b.  HOT WATER BOILERS:  The assembled boiler 
must be subjected to a hydrostatic test of not less 
than 1½ times the maximum allowable working 
pressure (MAWP).
CAUTION
DO NOT install gauge until after hydrostatic
testing the boiler.  Gauge failure may result.
WARNING
Failure to properly hydrotest all boilers at
the correct pressure may result in section
assembly failure in operation.