when used with a Series 30 or 31 amplifier (such as the A1011)

This OEM replacement part is built with high-grade glazed porcelain to provide superior dielectric strength

EPDM Construction: Superior resistance to heat checking and environmental wear compared to standard rubber compounds

Connecting it to a 24V circuit will result in failure to actuate

it serves as the direct cross-reference for S1-026-29620-000 and 703020

Resideo 272748ABP Replacement Motor R-407A when used with a SeriesThe Resideo 272748ABP Replacement Motor is a high duty synchronous motor designed specifically for field service on Honeywell Home zone valves. Engineered for a seamless fit within the V8043 and V8044 series, this 24Vac component allows technicians to restore system functionality without the need to drain the hydronic loop or break pipe connections. It operates at 50 60 Hz and includes 6 inch lead wires with solderless connectors to simplify the