FT-C Vertical Electric Thermal Fluid Heater Manual 12 2013 ISSUE 1
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3.11
DAILY SHUTDOWN
1. Switch the burner off.
2. Allow the fluid to circulate for approximately 20-30 minutes and then switch off the circulation
pump.
3. When using a fluid cooled pump, continue to circulate cooling water to the pumps for
30 minutes after stopping circulation.
4. Open the power supply switches.
5. Units switched off by an automatic time switch should have an extra relay fitted to allow
20-30 minutes of fluid circulation after stoppage in order to prevent localised over heating of
fluid.
6. Close fuel valves if required. Closing of system valves is not generally necessary unless
maintenance of components requires a partial draining of the system.
7. Because of the high temperatures usually applied, leaks are not expected to occur when
cool down is achieved, provided pipework is free to contract naturally when cold.
3.10
DAILY START-UP
1. Check positioning of all system valves to ensure flow is not dead-headed.
2. Visually check relative position of minimum level float switch in the combination tank.
3. Turn on power supply switches.
4. Where applicable, open water cooling valve and check that water flows correctly.
(For water cooled pumps only.)
5. Start the circulation pump and monitor the pressure gauges on heater.
6. Push reset on the high fluid pressure switch located on the side of the control panel.
7. When ready to begin heating, switch the burner on. After a short delay resulting from the
purge period, the burner will ignite. Make sure the temperature set point is as desired.
8. Start-up is considered complete when the unit begins to throttle back or shutdown on target
temperature.
9. On gas units, pilot valve activation will be indicated after pre-purge cycle has completed,
followed by main flame activation. Check the presence of the flame by observing flame
signal strength from flame programmer or testing device. Operator attendance during warm-
up is a recommended precaution.
10. Start-up is considered complete when the unit begins to throttle back or shutdown on target
temperature.
Содержание FT-0080C
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