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Warning on using Sid Harvey's day tank P239-1 pressure switch P239-11

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ace_pilot
ace_pilot Member Posts: 1
New member here...

Don't know how many people still have a day tank in their system using the Sid Harvey P239-1 system but I recently had the pressure switch P239-11 failed on me. The pressure switch, which is a simple diaphragm connected to an electrical switch, is poorly made such that when it fails, the heating oil spews out of its opening and floods the area of day tank. Worse yet, when the switch fails, it fails so that the electrical pump is turned constantly on, pumping more and more of the oil to the area, and it never stops. The system is poorly designed and should have been setup so that when the switch fails, the pump is turned off. I have since redesigned the system, and if there's any interest, I can posted my setup on this forum.

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