Honeywell RTH230B Programmable Electronic Thermostat Installation Manual and User Guide

Honeywell RTH230B Installation Manual and User Guide

Honeywell RTH230B Installation Manual

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: This thermostat is not compatible with heat pumps or multistage systems.

Honeywell RTH230B Programmable Electronic Thermostat

Honeywell RTH230B 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
  • Battery replacement indicator
  • 5-2 programming including:
    • Preprogrammed energy-saving schedule
    • Early Start
    • Temporary bypass
    • Time display (12 h or 24 h)
  • Filter replacement indicator

Honeywell RTH230B Installation

Removing the Old Thermostat

IN ORDER TO AVOID ANY RISK OF ELECTRIC SHOCK, CUT POWER TO THE HEATING SYSTEM.

  • Remove the old thermostat to access the wires.

Warning: If the old thermostat was mounted onto an electrical box,
it was probably powered by 120/240 volts. In this case, this thermostat
cannot be used.

  • Identify and label each wire (with the corresponding letter on the wire terminal) and remove them from the terminals.
  • If necessary, strip the end of each wire (maximum of 1/4 inch).
  • Wrap the wires around a pencil to prevent them from falling into the wall.Wrap the wires around a pencil Before Honeywell RTH230B Installation
  • 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.

Readmore and Download Honeywell RTH230B Installation Manual PDF Below

Honeywell RTH230B Installation Manual