Cleaning the Strainer Basket: Difference between revisions
no edit summary
Matt Parnell (talk | contribs) No edit summary |
Matt Parnell (talk | contribs) No edit summary |
||
| Line 3: | Line 3: | ||
===Preparation=== | ===Preparation=== | ||
# | # 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). | ||
# Stop the pump. | # 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. | ||
# 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). | ||
| Line 15: | Line 16: | ||
# Remove the strainer basket. | # Remove the strainer basket. | ||
# Inspect and clean the basket. Discard the contents into a garbage bag. | # Inspect and clean the basket. Discard the contents into a garbage bag. | ||
# In some cases, debris may pass through the strainer and clog the pump. Non-typical noise, vibration and/or reduced flow (despite cleaning/backwash) may be indicative of a clogged pump. If this is determined to be the case, ensure that the main pump motor disconnect is switched to the off position. A lock-out procedure may be required. Once the motor is safely disabled, reach into the pump and clear of all debris. | |||
===Wrap-Up=== | ===Wrap-Up=== | ||