Fulton Vertical Coil (FT-C_S) Thermal Fluid (hot oil) Heater - Manual (Page 48)

© The Fulton Companies 2013
3-8
OPERATION
FTCS-IOM-2013-1114
SECTION 3
!
WARNING
Before commissioning the equipment,
verify with authorized personnel that
the gas lines have been purged.
Never attempt to operate a heater that
has failed to pass all the safety checks.
After checking controls by manual
adjustment, make sure they are
always reset to their proper settings.
Contact your Fulton dealer before
modifying the equipment.
If any “Manual Reset” limit device trips
DO NOT reset without determining
and correcting the cause. (Manual
Reset Limits may include: fl ame
safeguard, high or low gas pressure,
high temperature limit, high pressure
limit)
Never tamper with low water (liquid
level) cutoff sensors or circuitry.
WHAT TO DO IF YOU SMELL GAS :
Do not use matches, candles, fl ame
or other sources of ignition to check
for gas leaks. Do not try to light the
appliance. Do not touch any electrical
switch; do not use any phone in your
building. Immediately call your gas
supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
If you cannot reach your gas supplier,
call the fi re department.
If excessive amounts of thermal fl uid
are to be vented from the system,
additional thermal fl uid may be
required in the system. Contact Fulton
for further information.
Flash steam may be generated at any
point up to the operating temperature.
Watch for gauge fl uctuations.
If fl uid or piping is added to the system,
the boil out procedure is required, as
water may have been introduced to
the system.
 Filtering the System
1. Initially, readings on the gauge will indicate zero or slightly positive
pressure. During the fi rst few moments of fl ow, this reading will go towards
vacuum, indicating that the strainer is becoming plugged.
2. Typically, a reading of 3” Hg or greater vacuum on the pump suction gauge
indicates that the strainer must be cleaned. The strainer screen should be
back fl ushed or pulled, cleaned and replaced.
3. In some cases, a positive pressure can be measured at the pump suction
gauge (due to the use of a nitrogen blanket or large positive head). This
should be noted and if the reading decreases by several inches or pressure,
check the strainer to ensure it clean.
4. Strainers should be cleaned by means of compressed air. A rag will merely
force the smaller particles into the mesh of the strainer. It is recommended
to place a lint free rag in the center of the strainer and blow air from the
outside, trapping the debris in the rag.
5. Allow the pump to run again for several minutes and repeat the fi ltering
process until pump suction pressure remains steady after cleaning. The
amount of time which must be allotted for fi ltering varies with the system.
6. When the system is initially brought up to temperature, additional pipe
scale and welding slag will loosen and enter the fl uid stream. This will be
trapped in the strainer causing vacuum at the pump suction.
 Boilout
1. Ensure adequate ventilation.
2. Check for correct fuel feed. All air must be eliminated from fuel lines, gas
piping, preheaters, etc. by approved methods.
NOTE:  As the system is being boiled out, the piping must be checked for leaks
as the temperature of the thermal fl uid is increased. If a leak is detected, refer
to Thermal Fluids at Elevated Temperatures section in Installation section of
this manual.
3. Open all manual valves in the fuel oil supply line. Do not run the fuel pump
dry or without fuel lines connected to fuel source. Do not allow the fuel oil
pump to pull a vacuum.
4. Check safeties.
5. Disable N2 blanket if equipped and open vent line on DA tank.
6. Set control switch to “Heat”. The burner will begin the call for heat if oil
temperature is below setpoint.
7. With burner fi ring and pump running, keep checking the gauges indicating
pump and circuit pressures. Make sure they remain stable.
8. In case of pressure fl uctuations, stop the burner, but allow the pump to