Resideo THP9045A1023 Wire Saver 320788-703 This boiler coupling is the

This boiler coupling is the professional choice for maintaining factory-spec flow rates and system efficiency

but you must never use a lower voltage rating than the original 370V specification

it is rated for saturated steam up to 15 psig when installed with the stem in a horizontal position

7-inch B pitch diameter further confirm its broad belt compatibility

Resideo THP9045A1023 Wire Saver 320788-703 This boiler coupling is theThe Resideo THP9045A1023 Wire Saver is a specialized C wire adapter designed for 1 heat 1 cool retrofit applications where the existing thermostat cable lacks a dedicated 24V common wire. By utilizing the K terminal on compatible Honeywell Home thermostats, including the RedLINK 8000 series and THX9000 Series, this module effectively splits the signal at the air handler or furnace. This allows a single conductor to manage both fan and compressor relay