Pool Boiler Temperature Controller: Difference between revisions
Jump to navigation
Jump to search
→Overview
Matt Parnell (talk | contribs) |
Matt Parnell (talk | contribs) |
||
| Line 3: | Line 3: | ||
== Overview == | == Overview == | ||
The boiler temperature controller | The boiler temperature controller ensures that the [[Pool Boiler|pool boiler]] internally operates at an optimal temperature. It does so by providing [[#Low Operator|Low Operator]] and [[#High Operator|High Operator]] interlocks. | ||
This controller does not manage the pool temperature. That functionality is handled by the [[Pool Temperature Controller]]. | |||
In the system, a circulation pump (shown in the <b>Boiler Loop</b> section on page 2 of the [[Process Flow Diagram]]) force returns some amount of hot water from the boiler outlet to the inlet. This helps to maintain an elevated operating temperature (i.e.. 120 °F or greater), reducing the risk of condensation forming on the heat exchanger that can cause damage over time. Unfortunately, various factors may prevent the circulation pump from maintaining the proper temperature such as improper valve settings, trapped air, or pump failure. Air may be regularly introduced into the system while [[Cleaning the Strainer Basket|cleaning the strainer basket]] or [[Backwashing|backwashing the filters]] may cause the pump to operate improperly. The boiler temperature controller in place prior to 2022, a Johnson Controls C450CCN-3, did not detect low-temperature operation. | |||
The | The controller cannot resolve fault conditions. Instead, it notifies the operator of a fault condition, which usually requires manual intervention. | ||
* Provides feedback of the boiler temperature via LCD display and via Modbus (RS-485) to the automation system. | * Provides feedback of the boiler temperature via LCD display and via Modbus (RS-485) to the automation system. | ||