The rounded end must face the liquid line (inbound flow) to seat properly against the internal shoulder of the distributor body during the cooling cycle

How do I ensure accurate readings in high-velocity ducts

Ensure all 9-pin connections are fully seated to maintain reliable connectivity and peak thermal efficiency

as an official Heil Quaker/ICP component

Johnson Controls M9203-BUB-2 Actuator 323269-701 The rounded end must faceThe Johnson Controls M9203 BUB 2 is a professional grade Spring Return Direct Coupled Actuator engineered for precision control in HVAC systems. Operating on a universal power supply of 85 264 VAC, this unit delivers a rated 27 lb in torque (3 Nm), making it an ideal solution for small to medium dampers and ball valve applications. Designed for two position control (on off), it features a mechanical spring return that ensures a fail safe position