Fulton Hopkins (HPN) Horizontal Coil Thermal Fluid (hot oil) Heater - Manual (Page 14)

© The Fulton Companies 2014
INSTALLATION
HPN-IOM-2014-0416
SECTION 2
2-8
come down for shipping, the wire will be left at the end
Locate electrical schematic diagram, a copy of which is inside
of the panel box. Ensure the information on the electrical
drawing corresponds to your voltage and frequency. Check
the supply voltage and make sure that there is no over-or
under-voltage exceeding 10% of the nominal value.
NOTE:  Normal supply will be 460 volts, 3 phase, 60 Hz, AC
unless otherwise specifi ed.
Thermal Fluids
 Thermal Fluids at Elevated Temperatures
Personnel must be familiar with the nature of potential
hazards when working with thermal fl uids at operating
temperatures. Unlike steam or high-pressure water systems,
thermal fl uid attains extremely high temperatures without a
corresponding increase in pressure.
Adhere to the following:
1. Be aware that certain types of thermal fl uid may have
operating temperatures reaching 650°F (345°C) and
above, so all exposed pipework is hazardous and should
be insulated.
2. Check that fl anged joints are tight during and after the
fi rst warming up of the system. Turn burner and pump
off before fi ttings are tightened. After these checks,
exposed hot fl anges, pumps, valves and fi ttings should
be fi tted with some sort of shield.
3. Remember that there is pressure generated in the
system by the circulating pump. Care should be
exercised when opening any drain or vent valves
in the system. This is especially important during
commissioning, when any air trapped in the system is
vented at high points, and when water, which will fl ash
into steam, is either expelled from the deaerator vent or
drained off at low points.
FIGURE 3 - TYPICAL GAS-FIRED FUEL TRAIN
Pilot Gas Valve
Pilot Gas Valve
Main Gas Regulator
Gas Safety Shutoff Valve
HI/LOW Gas Pressure Switch
Manual Gas Valve
2” NPT Gas Connection
Manual Gas Valve