Cleaning the Strainer Basket: Difference between revisions
→Preparation
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# Disable the call for heat by lowering the temperature setpoint on the temperature controller to a value several degrees below the sensed temperature (in the future, a switch may be added to do this). | # Disable the call for heat by lowering the temperature setpoint on the temperature controller to a value several degrees below the sensed temperature (in the future, a switch may be added to do this). | ||
# If the boiler was operating in Step #1, wait for the boiler circulation pump to stop. This may take several minutes. Observe that during this period, the manifold temperature will drop, approaching the boiler inlet (sensed) temperature. It is important to allow the boiler to complete a proper cool-down prior to cutting water circulation. | # If the boiler was operating in Step #1, wait for the boiler circulation pump to stop. This may take several minutes. Observe that during this period, the manifold temperature will drop, approaching the boiler inlet (sensed) temperature. It is important to allow the boiler to complete a proper cool-down prior to cutting water circulation. Failure to do so could result in an over-temperature trip, or damage to the boiler itself. | ||
# Stop the main pump motor. Switching off the disconnect (the lever on the enclosure above the motor starter) may be necessary in some cases (see below). | # Stop the main pump motor. Switching off the disconnect (the lever on the enclosure above the motor starter) may be necessary in some cases (see below). | ||
# Close the water valves on both sides of the strainer basket. If water overflows, additional closing force may be required (the valves should form a complete seal). | # Close the water valves on both sides of the strainer basket. If water overflows, additional closing force may be required (the valves should form a complete seal). | ||