Trane RLY3211 Relay 320788-702 use a multimeter to check

use a multimeter to check for a microamp (µA) signal

Utilizing a factory-calibrated diaphragm

Enhanced Reliability: Features a brushless DC motor and stall detection to prevent motor burnout during mechanical workspace failures

it converts ambient or coil air temperatures into electrical signals

it is standard practice to inspect or replace the associated 30-inch screw-in thermocouple and pilot tubing during installation to ensure system integrity

Trane RLY3211 Relay 320788-702 use a multimeter to checkThe Trane RLY3211 Relay is a high duty 240V 50A start relay specifically engineered for commercial and industrial HVACR applications. Designed for heavy load equipment, this genuine OEM Trane RLY03211 replacement ensures internal mechanical components effectively manage the high inrush current typical of large compressor startups. This relay is a critical component for maintaining consistent cycle performance in compatible systems, including popular