Operation, Circulating pump – Fulton Vertical Tubeless (FT-A) Thermal Fluid (hot oil) Heater User Manual

Page 44

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© The Fulton Companies 2013

OPERATION

FTA-IOM-2013-0227

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 fi re does occur, extinguish using
CO

2

foam or dry chemical. DO NOT

USE WATER.

Installation in accordance with the
guidelines within the manual should
be fully completed before performing
the initial start-up; and start-up
must be complete prior to putting
the unit into service. Starting a unit
without the proper piping, venting or
electrical systems can be dangerous
and may void the product warranty.

4. Do not pressurize the system with nitrogen at this point.

5. Inspect the liquid level switch (Figure 14) and be sure the switch is

functioning properly.

6. Begin fi 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 fi 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 fi lling. Start the
circulating pump as described in Initial Start-Up: Cold Circulation
section of this manual. Leave the fi ll equipment connected as cleaning the
strainer may create the need for more oil in the system.

10. Determine the fi nal nitrogen pressure by measuring the diff 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 suffi

cient.

12. Adjustment can be made via the regulator mounted on top of the D.A.

tank.

NOTE: If you are using a fl uid above its boiling point, the system must be

pressurized to overcome the vapor pressure of the fl 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 Thermal Corporation, manufacturer’s literature is
included with this manual.

2. Never run the pump without fl uid in the casing. For pumps equipped

with mechanical or air-cooled seals, air must be bled out of the stuffi

ng

box area to ensure that thermal fl uid has lubricated all seal and bearing
areas. Operation of the pump even a short time without bleeding fi rst will
damage the pump.

3. Use the thermal fl uid as a barrier fl uid. Remove the 3/8” plug at the barrier

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