Carrier HH680610 Step Controller 320788-704 Durable Construction: UL listed for

Durable Construction: UL listed for operating pressures up to 650 psi

Durability: Engineered for high-temperature resilience in 90%+ AFUE furnace applications

7" length and 11/16" width to meet exact clearance tolerances in ServiceFirst factory applications

this motor vibration isolation kit utilizes high-durometer rubber grommets to decouple the motor from the blower housing

but verifying the specific voltage and terminal configuration is recommended before installation

Carrier HH680610 Step Controller 320788-704 Durable Construction: UL listed forThe Carrier HH680610 Step Controller is a critical Factory Authorized Part designed to manage the staging sequence in multi stage heating and cooling equipment. As a high precision HVAC step controller, it facilitates incremental capacity adjustments by activating small heating or cooling stages based on real time temperature fluctuations. This sophisticated modulation prevents system short cycling and optimizes energy consumption across multi stage