How should the pressure switch be installed on a low pressure boiler?

The pressure switch on a low pressure boiler should be installed vertically with the high point up to ensure proper function and accuracy. This orientation allows any condensation that may form to flow away from the sensing mechanism of the switch. Proper placement is crucial because any liquid that collects at the sensing point can cause incorrect readings, potentially leading to improper boiler operation.

By installing the switch vertically with the high point positioned upwards, it maximizes the chances of keeping the sensing element free from any liquid buildup. This alignment helps maintain the integrity of the readings, thus ensuring that the boiler operates within the designed pressure limits and helps avoid harmful conditions such as overpressure. Additionally, this installation method aligns with common industry practices for maximizing operational reliability and safety in boiler systems.