Fulton Alliance (FT-HC) Horizontal Coil Thermal Fluid (hot oil) Heater - Manual (Page 34)

© The Fulton Companies 2012
INSTALLATION
FTHC-IOM-2012-1001
SECTION 2
2-28
!
WARNING
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes and
regulations.
Failure to ensure vent connections
terminate into a well-ventilated
area with catch tank may create an
environmental hazard.
High temperature thermal fl uid,
steam, and combustible vapors
may be vented through the vent
connection on the combination
deaerator/thermal buff er/expansion
tank.
In order to meet warranty conditions,
ensure appropriate tests and
operational safety activities are
performed.
Unless specially fi ltered, compressed air
will introduce moisture to the system.
Dry air or nitrogen is recommended.
8. Ensure the draft, when fi ring, is negative and constant. A reading of -0.02 to
-0.04”wc when the unit and stack are cold usually indicates suffi cient draft.
When the unit is running and the stack is hot, the draft should read 0.04 to
0.08 “wc negative.
9. The installation of a draft regulator by the client/contractor is
recommended at all installations. This will help to maintain the required
draft. The placement of the draft regulator should be as shown in Figure 16
and Figure 17.
10. Insulate the section of the chimney duct within the building.
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.