RTH230B

RTH230B Programmable Electronic Thermostat q r Wrap the wires around a pencil to prevent them from falling into the wall. If the hole in the wall is too big, insulate it using a non-flammable material in order to avoid air draughts behind the thermostat. Installation and User Guide 1. 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 with or without pump - 2 wires a millivolt system - 2 wires a central heating and cooling system - 4 or 5 wires Note: These thermostats are not compatible with heat pumps or multi-stage systems. www.D ataShee t4U.com Display Adjustment buttons 2.2 Installing the New Baseplate For a new installation, choose a location approximately 5 feet (1.5 m) above the floor and on an inside wall. Avoid draughty areas (top of staircase, air outlet, etc.), dead air spots (behind doors), direct sunlight or areas near concealed pipes or chimneys. n o Remove the thermostat faceplate. Loosen the locking screw to separate the thermostat from its baseplate (the screw cannot be completely removed). System operating mode selector Fan operating mode selector Programming buttons Features System operating mode selection: heat, cool or off Fan operating mode selection: automatic or on (continuous) Programmable heating and cooling cycle lengths: 10, 12, 15, 20 or 30 minutes Temperature display in °F or °C Batter...