Pay in 4 interest-free payments of $152.94 Learn more
Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Dead-End Lock-up: Ensures zero downstream flow and prevents pressure spikes when appliances are not firing
making it compatible with most major BAS controllers that require a 10K-AN thermistor
or a failure to open despite receiving 24VAC from the furnace control board
It also services RV Series models such as the RV225 and RV325
Honeywell 420-I Converter 320819-301 Dead-End Lock-up: Ensures zero downstreamThe Honeywell 420 I Converter is a professional grade Modbus RS 485 to 4 20mA digital to analog output converter designed for seamless integration into complex Building Automation Systems (BAS). This module bridges the communication gap between serial Modbus RTU networks and traditional analog field devices, providing a reliable analog output signal for proportional control. Engineered for precise signal conversion, the 420 I supports up to 127