FULTON FB-A 10, Инструкция по эксплуатации и техническому обслуживанию, Страница: 42 / 102

The Blow-Off Valve — There are two
blow off valves on the boiler: The
main valve at the rear of the boiler
and the water gauge glass blow off
valve. The boiler blow off valve sup-
plied with the boiler should be
screwed to the blow off pipe at the
rear of the boiler and connected to a
blow off receptacle of approved
design. This should be done in accor-
dance with state and local codes.
The Feed Water Piping
1)
Provisions must be made for ade-
quate water supply and properly
sized piping. Piping must be done in
compliance with all local codes. The
following chart may be used as a
guideline for sizing.
BHP Minimum Water
Supply Piping Size
Inches Millimeters
6 1/2 12.5
9.5 1/2 12.5
10 1/2 12.5
15 3/4 19
20 3/4 19
30 1 25
40 1 25
50 1 25
60 1 25
2)
When feeding the boiler using a
return system, the city water pressure
should not exceed 40 PSI. A pres-
sure reducing valve should be
installed a head of the return tank
when above this pressure.
3) It is important that all piping be
lined up and not forced into place. It
is recommended that you begin pip-
ing at the pump. If the lines are
ended at the pump, particularly if the
last piece is cut too short or long, the
pump will be forced to meet the pipe
and strain or distortion will result.
4) Do not use the pump as a piping
support. It is critical that the pipe be
independently supported near the
pump so no strain will be transmit-
ted to the unit.
5) Connect the feed water stop
valve to the feed water pipe at the
rear of the boiler and pipe it to the
return system.
The Water Column
Install the piping from the water
column and water gauge glass to a
safe blow-off point.
Description/Instructions
35-G 1/01
4
1/2 12.5