Figure 4. Barksdale pressure differential switch CDPD2H-A80SS
Figure 5. Sight gauge.
Figure 6. Drain valve in strainer flange.
Wear chemical and heat resistant gloves as protection from hot oil.
Figure 7. Controls on LH side of burner.
|
Operating mode
|
Valves on heater thermal fluid piping
|
|
Valve No. 1
|
Valve No. 2
|
Valve No. 3
|
Valve No. 4
|
|
Run
|
Open
|
Closed
|
Open
|
Open
|
|
Purge
|
Closed
|
Open
|
Open
|
Open
|
|
Clean Strainer
|
Closed
|
Closed
|
Closed
|
Closed
|
Figure 8. Valve settings for operating modes.
|
Modulating
Controller set point
|
High Temp. Controller set point
|
|
HCS Heater
|
HC Heater
|
|
320 degrees F
|
370 degrees F
|
400 degrees F
|
|
350 degrees F
|
400 degrees F
|
430 degrees F
|
|
370 degrees F
|
420 degrees F
|
450 degrees F
|
|
|
(Normally 50 degrees F higer than set point on Modulating Controller
|
(Normally 80 degrees F higer than set point on Modulating Controller)
|
Figure 9. Suggested set points for High Media Temp. Controller.
Figure 10. Main disconnect circuit
breaker.
Figure 11. Control transformer.