Owner's Manual
Page 1
...; a central heating and cooling system - 4 or 5 wires Note: This thermostat is too big, insulate it using the screws provided. 2.3 Connecting the Thermostat The connection of 1/4 inch). Temporary bypass - RTH230B Programmable Electronic Thermostat Installation and User Guide 1. 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...
...; a central heating and cooling system - 4 or 5 wires Note: This thermostat is too big, insulate it using the screws provided. 2.3 Connecting the Thermostat The connection of 1/4 inch). Temporary bypass - RTH230B Programmable Electronic Thermostat Installation and User Guide 1. 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...
Owner's Manual
Page 2
..., mount the thermostat on the wall. 2.3.1 2-wire Heating 2.3.2 2-wire Cooling Heat relay 2.3.3 3-wire Heating Cool relay 2.3.4 3-wire Cooling Heat relay Fan relay Cool relay Fan relay 2.3.5 4-wire Heating and Cooling Heat relay Cool relay Fan relay 2.3.6 5-wire Heating and Cooling RTH230B Heat relay Fan relay Cool relay 2.4 Setting J2 Jumper The jumper defines the fan operation when the fan is placed in Heating mode (HEAT) or Cooling mode (COOL), or...
..., mount the thermostat on the wall. 2.3.1 2-wire Heating 2.3.2 2-wire Cooling Heat relay 2.3.3 3-wire Heating Cool relay 2.3.4 3-wire Cooling Heat relay Fan relay Cool relay Fan relay 2.3.5 4-wire Heating and Cooling Heat relay Cool relay Fan relay 2.3.6 5-wire Heating and Cooling RTH230B Heat relay Fan relay Cool relay 2.4 Setting J2 Jumper The jumper defines the fan operation when the fan is placed in Heating mode (HEAT) or Cooling mode (COOL), or...
Owner's Manual
Page 3
... Early Start is On, the thermostat determines when to start heating or cooling so that matches your system as follows: • When the thermostat is placed in cool mode, the fan works only when cooling is activated. • When the thermostat is placed in programmable mode, the new temperature will flash for the next 2 hours. The day flashes. Set the day using the...
... Early Start is On, the thermostat determines when to start heating or cooling so that matches your system as follows: • When the thermostat is placed in cool mode, the fan works only when cooling is activated. • When the thermostat is placed in programmable mode, the new temperature will flash for the next 2 hours. The day flashes. Set the day using the...