When is a condensate receiver most likely to start pumping condensate to the boiler?

A condensate receiver is designed to manage the collection and transfer of condensate back to the boiler for reuse in the heating process. The primary operation of the condensate receiver involves monitoring the water level within its tank. When the water level in the upper tank is high, it indicates that there is an accumulation of condensate that needs to be removed to maintain optimal operating conditions.

The receiver will activate its pump to transfer this excess condensate back to the boiler, ensuring that it does not overflow and that the system remains efficient. Properly managing the water level in the receiver is crucial because high levels can lead to water hammer or other operational issues within the system. This action helps sustain the efficiency of the boiler operation by recycling valuable water.

In contrast, the other scenarios do not typically trigger the pump to activate. High pressure in the system often requires monitoring for safety but doesn't initiate condensate transfer. A low water level would not necessitate pumping since the boiler would typically be looking to maintain a certain level of condensate, not remove it. Elevated steam temperature can indicate a variety of conditions but does not directly address the operation of the condensate receiver in terms of pumping based on water levels.