Fulton Vertical Electric (FT-N) Thermal Fluid (hot oil) Heater - Manual (Page 55)

Fulton Thermal Corp.*Electric Thermal Fluid Heaters Manual* Version 2010-0423
Page 55
c) In the event of an abnormal reading, contact Fulton Service immediately. Failure to take
immediate action in the event of reduced fluid flow may result in rapid and serious
degradation of the fluid, with possible damage to the heater.
13. Required Flow Through The Heater
a) Maintenance of sufficient flow through the thermal fluid heater and system at all times of
operation is critical. See table for recommended standard flow rates.
b) Note pressure gauge readings at start-up. Record readings in a log book and contact
Fulton service immediately in the event of abnormal readings. Failure to take action when
fluid flow is reduced may result in serious and rapid degradation of the fluid with possible
damage to the heater.
Model Recommended
GPM
Differential
Pressure (PSI)
FT-0075N 50 7
FT-0150N 50 7
FT-0225N 50 7
FT-0300N 90 10
FT-0375N 90 10
FT-0430N 125 10
FT-0640N 125 10
FT-0860N 150 12
FT-1070N 150 12
FT-1290N 175 12
FT-1500N 200 12
FT-1720N 200 15
14. Operating Controls
a) The following specifications, data, equipment and operating descriptions apply to typical
Coil Design units. These sections are provided for general information purposes only,
and do not necessarily reflect the specific details of individual systems.
b) Liquid Level Switch-When Combination Tank is Supplied
1. In the event of system fluid loss, the level in the expansion section of the
combination tank will drop, and the liquid level switch will shut the unit
down. Control power will be lost to the panel.
2. To confirm operation, manually trip the liquid level switch. Unit should
shut down; pump will stop.
c) Differential Pressure Switch
1. The heater is dependent on proper flow for operation; therefore, a
differential pressure switch is used to sense the pressure drop across the