IO Hvac Controls iO-TWIN-TR Twinning Kit 321702-401 Use a manometer to confirm

Use a manometer to confirm the system is pulling at least

ensuring a clean and accessible discharge point during routine system flushes

utilizing a 3-7 psi spring range for reliable spring return safety

this OEM Carrier part provides the exact fit and electrical specifications required to maintain system integrity and prevent premature component failure in multi-phase industrial equipment

Simplified Troubleshooting: The 009057F manual reset kit allows for clear diagnostic feedback during the startup sequence

IO Hvac Controls iO-TWIN-TR Twinning Kit 321702-401 Use a manometer to confirmThe iO TWIN TR Twinning Kit provides a reliable solution for technicians needing to synchronize two separate HVAC units from a single thermostat. Engineered for versatility, this universal twinning kit is compatible with single stage, multi stage, and heat pump equipment, whether configured on common or independent ductwork. The internal circuitry ensures seamless communication between units, and the system can be expanded to manage up to four units