The RTH230B programmable thermostat can be used to control a gas, fuel oil or electric furnace, a central air conditioner, a hot water system with or without pump, a milivolt system, and a central heating and cooling system. The features for Honeywell RTH230B are the system operating mode selection (heat, cool, or off), fan operating mode selection (automatic or on), programmable heating and cooling cycle lengths, temperature display in Fahrenheit or Celcius, battery replacement indicator, 5-2 programming including preprogrammed energy-saving schedule, early start, temporary bypass, time display, and filter replacement indicator.
This RTH230B installation guide and user manual described not just the introduction and features as mentioned above, but also the installation (removing the old thermostat, installing the new baseplate, connecting the thermostat, setting j2 jumper, installing the batteries, and completing the installation), the basic functions(system operating mode, fan operating mode, displaying the temperature, setting the temperature, thermostat control mode, filter replacement indicator, and battery replacement indicator), RTH230B configuration menu, RTH230B programming (setting the time and day, energy-saving schedule, and modifying the schedule), the RTH230B technical specifications, warranty, and the RTH230B Customer Assistance.
To download the Honeywell RTH230B Programmable Electronic Thermostat Installation Guide and User Manual pdf file (470 KB), download from the following source :
HONEYWELL RTH230B PROGRAMMABLE ELECTRONIC THERMOSTAT INSTALLATION GUIDE AND USER MANUAL








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