Honeywell rth230b Installation And User Manual (PDF)

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RTH230B Electronic Thermostat and User Guide Wrap the wires around a pencil to prevent from falling into the wall If the hole in the wall is too big insulate it a non flammable material in order to air draughts behind the thermostat Installing the New Baseplate a new installation choose a location approximately 5 feet m above the floor and on an inside wall Avoid draughty top of staircase air outlet etc dead air spots behind direct sunlight or areas near concealed pipes or chim 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 This thermostat is not compatible with heat pumps or multi systems Remove the thermostat faceplate Loosen the locking screw to separate the thermostat from its the screw cannot be completely removed operating selector operating selector 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 30 minutes Temperature display in or 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 Removing the Old Thermostat ORDER TO AVOID ANY RISK OF ELECTRIC SHOCK CUT TO THE HEATING SYSTEM Remove the old thermostat to access the wires If the old thermostat was mounted onto an electrical box was probably powered by 120 240 volts In this case this thermo cannot be used Identify and label each wire with the corresponding letter on wire terminal and remove them from the terminals If necessary strip the end of each wire maximum of 1 4 inch Tilt the thermostat upwards Mark and bore the appropriate mounting holes or use the holes Insert the plastic anchors Pass the wires through the opening of the baseplate and fix the to the wall using the screws provided Connecting the Thermostat connection of the new thermostat should be similar to that of old thermostat however it can vary depending on the installa power supply power supply signal signal The red jumper wire between the Rc and Rh terminals must removed in 2 or 5 wire installations The jumper must be used in or 4 wire installations if you wish to use the mode selector switch the fan 69 1800 03 11 1 4 2 wire Heating 2 wire Cooling 3 wire Heating 3 wire Cooling relay relay relay relay relay relay relay relay relay 4 wire Heating and Cooling 5 wire Heating and Cooling relay relay relay Setting J2 Jumper jumper defines the fan operation when the fan is placed in auto mode jumper this setting if you have an electric furnace In setting when the fan is placed in automatic it works only when heating or cooling is this setting if you have a gas or fuel oil fur In this setting when the fan is placed in mode it works as follows When the thermostat is placed in cool mode fan works only when cooling is activated When the thermostat is placed in heat mode fan is controlled by the furnace fan control Installing the Batteries Pull out the battery cover Install the batteries as shown Observe the polarity Reinstall the battery cover You will hear a clicking sound the batteries are installed the thermostat performs a series of for approximately 5 seconds the screen displays the actual It is normal that the displayed be higher than the ambient if you are holding the thermo The thermostat will display the ambient temperature once it is on the wall By default the setpoint is 70 21 Completing the Installation Once the baseplate and the batteries are installed mount the on the baseplate Secure the thermostat using the locking screw and install the Apply power back to the system Basic Functions System Operating Mode the selector switch to place the system in Heating HEAT or Cooling mode COOL or to set the off When you place the thermostat in Cooling mode you might need to up to five minutes before cooling can start This is a safety feature for compressor will flash on the screen until cooling can start again 69 1800 03 11 2 4 buttons until the desired temperature is dis DESCRIPTION Fan Operating Mode the selector switch to set the fan to automatic AUTO or continuous mode ON This switch is not used if you have a 2 wire as the fan is not connected to the thermo you have an electric furnace see section 2.4 the fan only when heating or cooling is activated you have a gas or fuel oil furnace see section 2.4 the fan as follows When the thermostat is placed in cool mode the fan only when cooling is activated When the thermostat is placed in heat mode the fan is by the furnace fan control circuitry fan is always on Displaying the Temperature actual temperature is normally displayed To view the setpoint once on one of the buttons The setpoint is displayed for seconds along with the Pressing either of the the setpoint buttons more than once will icon Setting the Temperature one of the Thermostat Control Mode Manual Permanent Hold Mode the temperature at a fixed setpoint To place the thermo in this mode press Mode The house icon will disappear Programmable Mode the temperature according to the energy saving sched To place the thermostat in this mode press Mode The cur period will be displayed The four possible periods are up for work home see the default settings of each period see section 5.2 Bypass you modify the temperature using the buttons when the is in programmable mode the new temperature will be for the next 2 hours The house icon flashes during the At the end of the bypass period the thermostat returns to temperature settings of the period currently underway Filter Replacement Indicator 500 hours of operation an icon appears to indi that the filter needs replacement Once the filter replaced press Filter for 3 seconds to remove icon and reset the counter Battery Replacement Indicator icon appears when the batteries need replacement icon will flash for 120 days then the thermostat cut power to the heating cooling unit The icon dis once the batteries are replaced replacing the batteries readjust the time and day see section However the temperature and program settings are saved and not need to be re entered Before removing the batteries place the switch on the thermostat to Off Otherwise the unit might still be running even after batteries are removed Configuration Menu To access the configuration menu press both buttons for 3 seconds To go to the next parameter menu item briefly press both simultaneously To modify a parameter press one of the Repeat steps 2 and 3 if necessary Press both configuration menu buttons buttons simultaneously for 3 seconds to exit display display h or h or 24 h or Off Start 1 cycles per hour 2 cycles per hour 2 3 4 5 or 6 3 3 4 5 or 6 4 When Early Start is On the thermostat determines when to start heating cooling so that the desired temperature is reached at the set time When either the heating or cooling parameter is displayed use the sys mode selector switch to alternate between the two parameters For optimal heating control use the setting that matches your system as 2 30 min steam gravity 3 20 min hot water

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