No, this is not permitted, as pump components that have come into contact with pumped media are not suitable for use in drinking water systems.
These days, heating systems are designed as hydraulically closed systems. This means that the building height need not be taken into account when designing the pump.
Circuit breakers and fuses trip for numerous reasons: Undervoltage, incorrectly designed circuit breaker or fuses, too low a setting for the motor-protective circuit breaker, asymmetric three-phase current, a short circuit on the motor, incorrect wiring or faulty electrical connections,
Circuit breakers and fuses trip for numerous reasons:
A: Air in the system leads to noise. The entire system must be inspected and bled.