Fulton Hopkins (HPN) Horizontal Coil Thermal Fluid (hot oil) Heater - Manual (Page 15)

Questions? Call (315)298-5121, or visit us online at www.fulton.com
SECTION 2
HPN-IOM-2014-0416
INSTALLATION
2-9
!
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.
The vent line connection on the
gas pressure regulator must be
piped to outdoor air by the installer
in accordance with National Fuel
Gas Code, ANSI Z223-1-1991 or
latest addenda. In Canada, gas
installations must be in accordance
with the current CAN/CGA B149.1 and
2 and/or local codes.
If a fi re does occur, extinguish using
CO2 foam or dry chemical. Do not use
water.
4
CAUTION
Proper selection of thermal fl uid is
critical to system performance.
 Selecting a Thermal Fluid
The selection of the thermal fl uid most suited to your application is very
important. Factors to be considered include effi
ciency, thermal stability,
adaptability to various systems, and physical properties, including vapor
pressure, freezing point, and fl ash and fi re points.
Heat transfer fl uids of both mineral and synthetic origin have been specially
developed to give thermal stability over a very wide range of temperature. A
wide variety of thermal fl uids have been used successfully in Fulton Thermal Fluid
Heater systems, however, your fi nal selection should be made in conjunction
with recommendations from Fulton or the fl uid manufacturer.
Consider the following for thermal fl uid selection:
1. The Fulton coil design heater is a fi red heat exchanger and the safe
control and monitoring of the thermal fl uid temperature is of paramount
importance.
2. The safe maximum bulk temperature of the fl uid must be strictly adhered
to. The safe maximum temperature of the fl uid varies.
3. Special care must be taken when consulting fl uid manufacturers’ literature,
as maximum fl uid temperatures quoted are the actual limit to which any
of the fl uids may be subjected. It is important to remember that in any
fi red heater there exists a “fi lm temperature” which is higher than the
temperature of the “bulk” of the fl uid. It is the BULK fl uid temperature and
NOT the FILM temperature that is indicated by the instruments.
4. As a general guide, the following list of fl uids that have given satisfactory
service over many years is provided. This is by no means a complete list.
Any fl uid specifi cally designed for heat transfer use may be considered;
multipurpose oils are not acceptable.
 AMOCO Transfer Oil 4199
 CHEVRON
 DOW G
 EXXON 43
 MOBIL
 MONSANTO
 MULTITHERM
 PARATHERM
 PETROCANADA T
 SHELL
 TEXACO
5. Any fl uid specifi cally designed for heat transfer use must also exhibit these
characteristics:
 Be a stable and homogenous liquid to a temperature of at least 100°F
(38°C) over and above the maximum intended temperature of utilization,
compatible with metals used in the installation, and tolerating contact