Tag: 69-1800-03

  • Honeywell RTH230B Thermostat Installation Guide

    Honeywell RTH230B Thermostat Installation Guide

    RTH230BProgrammable Electronic ThermostatInstallation and User Guide This is a legacy product document supported by Resideo. It is no longer manufactured Introduction The RTH230B programmable thermostat can be used to control:  a gas, fuel oil or electric furnace – 2 or 3 wires  a central air conditioner – 2 or 3 wires a hot water system…