In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
1 of 2 pumps turning off.
my site manager is having a problem with his navien boiler system.
he has 2 zones.. both controlled by pumps.heres the scenario.
1. the upstairs zone is calling for heat and working fine.
2. when the downstairs zone thermostat is set for heating it turns on.
3. but when the downstairs turns on it kills power to the top floor.
I don't have pictures at the moment.
It is hot water baseboard.
controlled by taco control board
what other information would you need to diagnose the problem?