Fulton Vertical Coil (FT-C_S) Thermal Fluid (hot oil) Heater - Manual (Page 40)

© The Fulton Companies 2013
INSTALLATION
FTCS-IOM-2013-1114
SECTION 2
2-34
X
X
2' 2'
X = 3 TO 5 PIPE DIAMETERS ON EACH SIDE OF DAMPER
X
X
Wrong Wrong Wrong
Poor
Right:
Minimum
1 Pipe
Diameter Wrong:
Less Than
1 Pipe
Diameter
Wrong
Right
FIGURE 19 - BAROMETRIC DAMPER INSTALLATION
the building. For heaters equipped with Flue Gas
Recirculation (FGR), ducting must be insulated to
prevent personnel injury.
11. Concentration levels of only a few ppm of chlorine
containing compounds in combustion air can produce
serious corrosion of the fl ue over long periods of time.
High chlorine containing compounds such as carbon
tetrachloride or perchloroethylene would be prime
suspects.
Testing
Upon completion of the installation, perform the following
testing:
1. A pneumatic test of thermal fl uid piping not exceeding
15 psig.
2. Soap tests at all welds and joints to ensure that the
system is free from leaks.
NOTE:  Under no circumstances should the system be fi lled
with water. Make sure that the air supply is as free from
moisture as possible.
3. Boil-out. The time needed for adequate boilout directly
corresponds to the volume of the system and the
amount of moisture and debris in the system. Boilout
typically takes anywhere from one to three days to
complete. Pressure testing on the system should be
done by means of an inert gas such as nitrogen or by an
air compressor producing dry air (air with a dewpoint of
50°F [10°C] or less). Never perform a hydrostatic test on
the system. The boilout procedure is described in the
Operation section of this manual.
4. The most satisfactory method of testing is to introduce
bottled nitrogen through a pressure control valve.
Check pressure ratings on all equipment in the system
to ensure that it is capable of withstanding the pressure
involved.