Pool Boiler: Difference between revisions
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→2021 Electrical Overhaul
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== 2021 Electrical Overhaul == | == 2021 Electrical Overhaul == | ||
In 2021, significant effort was made to overhaul the wiring in the boiler. | [[File:RBI Boiler Controls May 2020.jpg|thumbnail|The pre-overhaul boiler control wiring in May 2020.]] | ||
In 2021, a significant effort was made to overhaul the wiring in the boiler. Observed issues included: | |||
* A literal tangle of wires, many removed from the wire tracks and/or excessively long, arranged without an apparent effort towards neatness. It's really not clear how much of the wiring was installed at the factory this way, or how much of it was worsened by numerous service efforts throughout the years. | |||
* Burned insulation on a few wires, presumably from a known overheating event that occurred shortly after installation. | |||
* A wiring mistake (not consistent with the schematic). | |||
* Use of aluminum MC conduit (outside of the unit) in a corrosive environment. | |||
* A great deal of dirt accumulation throughout. | |||
Debugging and servicing the unit were very difficult. | |||
[[File:RBI Boiler Controls May 2021.jpg|thumbnail|The overhauled boiler control wiring in May 2021.]] | |||
The overhaul also resulted in a few additional changes: | |||
* The Johnson Controls C450CCN-3 was moved to an external location for enhanced monitoring by a human operator. | |||
* Relay coil taps were added to add monitoring of operating conditions by an external PLC. | |||
* Re-routing of some electrical in new liquid-tight conduit. | |||