Optimized System Logic: Restores factory-calibrated timing for compressor delay and fan relay operations

the EA52PH061 provides a reliable

Cross-reference the specific model and serial number of the air handler or furnace to ensure the mounting orientation and terminal block match the existing wiring harness

is not interchangeable with Mark IV or MicroTech II legacy boards due to different terminal layouts and communication protocols

Dual Rotation: Field-reversible CW/CCW rotation allows for compatibility across multiple unit configurations

Resideo THP9045A1023 Wire Saver 322027-701 Optimized System Logic: Restores factory-calibratedThe Resideo THP9045A1023 Wire Saver is a specialized C wire adapter designed for 1 heat 1 cool retrofit applications where the existing thermostat cable lacks a dedicated 24V common wire. By utilizing the K terminal on compatible Honeywell Home thermostats, including the RedLINK 8000 series and THX9000 Series, this module effectively splits the signal at the air handler or furnace. This allows a single conductor to manage both fan and compressor relay