Owner's manual

© Fulton Companies 2014
OPERATION HPN-IOM-2014-0416 SECTION 3
3-4
! 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.
Wear eye and hand protection for
your safety.
Use extreme caution when opening
circulating pump plug if system
temperature is elevated.
Non-Fulton product information is for
reference purposes only. No Fulton
document may substitute for full
review of documentation available
from the component manufacturer.
If a  re does occur, extinguish using CO
2
foam or dry chemical. Do not use water.
4. Do not pressurize the system with nitrogen at this point.
5. Inspect the liquid level switch (Figure 10) and be sure the switch is
functioning properly.
6. Begin  lling the system.
7. Fill the system until the liquid level switch indicates there is oil in the
expansion tank.
8. Pressurize the system slightly with nitrogen. Leave the high point vent
connections open, as the nitrogen should be isolated from the vents by the
oil in the system. The pressure required in the system at this point is only
2-3 psi. If too much pressure is applied, the nitrogen will bubble through
the oil and vent to atmosphere. If this happens, reduce the pressure.
9. Continue  lling the system. If liquid level switch is made, be sure to
observe the high point vents as oil is now entering the elevated portion
of the pipe work. As oil reaches the vent, close it. After all vents have
been closed, and you believe the system to be full, stop  lling. Start the
circulating pump as described in Initial Start-Up: Cold Circulation
section of this manual. Leave the  ll equipment connected as cleaning the
strainer may create the need for more oil in the system.
10. Determine the  nal nitrogen pressure by measuring the di erence
between the D.A. Tank inlet and the highest point in the system. Divide
that number by 2.31 (this will indicate the nitrogen pressure the system
should be set for).
11. If the tank is located outdoors and the inlet to the tank is the highest point
in the system, then 1-2 psig of nitrogen is su cient.
12. Adjustment can be made via the regulator mounted on top of the D.A.
tank.
NOTE:  If you are using a  uid above its boiling point, the system must be
pressurized to overcome the vapor pressure of the  uid. Consult the factory for
assistance.
 Circulating Pump
Adhere to the following:
1. Read manufacturer’s instruction manual thoroughly. If the pump is
supplied by Fulton, manufacturer’s literature is included with this manual.
2. Never run the pump without  uid in the casing. For pumps equipped
with mechanical or air-cooled seals, air must be bled out of the stu ng
box area to ensure that thermal  uid has lubricated all seal and bearing
areas. Operation of the pump even a short time without bleeding  rst will
damage the pump.
3. Use the thermal  uid as a barrier  uid. Remove the 3/8” plug at the barrier
 uid  ll port. Fill the cavity with thermal  uid until it comes out of the
over ow tube. Replace the 3/8” plug.