How to diagnose a chilled water valve not controlling on a Trane Performance Climate Changer AHU
A chilled water valve that does not respond is almost always a failed actuator or a loss of control signal from the BAS. Confirm the 0-10V or 4-20mA signal at the actuator before replacing any hardware.
~60 min6 steps
How to diagnose coil fouling and reduced airflow on a Trane Performance Climate Changer AHU
Reduced airflow with high fan static pressure is almost always a clogged filter or a fouled coil. Replace filters first. If static pressure is still high, the cooling or heating coil needs cleaning.
~90 min7 steps
How to stop condensate drain pan overflow on a Trane Performance Climate Changer AHU
Condensate overflow is almost always a blocked drain line or a plugged p-trap. Clear the drain line first, then inspect the trap depth to ensure it holds sufficient water seal against the negative pressure inside the unit.
~60 min7 steps