Honeywell RTH221B1000 Thermostat User Manual

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RTH221 Guide Thermostat switch the Fan switch to select the fan operation Auto The fan runs only when heating or cooling is actually taking commonly used setting On The fan runs continuously setting the or button once to display the setpoint temperature either button more than once to change the setpoint ambient measured temperature is normally displayed To view setpoint temperature press either of the temperature adjustment once The setpoint temperature will appear for five seconds compressor protection thermostat has a feature that helps prevent damage to the of your air conditioning system Because damage can if the compressor is restarted too soon after shutdown this forces the compressor to wait five minutes before restarting the wait time the message Cool On flashes on the screen the safe wait time has elapsed the message stops flashing the compressor turns on Programmed schedule the Run button to follow the programmed schedule You can up to four periods in one day Each period can be programmed a different temperature setting the schedule temperature temperature temperature temperature program a period you need to set its start time and its two settings one when the thermostat is in cooling mode another one when it is in heating mode The same period and are repeated every day maximum energy savings without sacrificing comfort you can the schedule such that the temperature is at an economical when you sleep or are away during the day and at a comfortable when you are awake and at home settings time a m a m p m p m 21 16.5 21 16.5 24 28.5 24 25.5 1 8 Operation to set clock schedule to override schedule hold temperature to run follow schedule screen indicator when the setpoint is displayed warning override period switch switch buttons schedule override status Cool On Cooling is activated Heat On Heating is activated When Cool On is flashing this means the compressor protection is engaged section 1.7 the clock Press the Set button The message Set Time will on the screen and the time display will flash Press the or button to set the time Press the Run button to save the changes exit changes are also saved if you do not press any for 60 seconds The clock has lost its settings when the time display flashes If thermostat is following the programmed schedule it will use the settings programmed for the Wake period until you re the clock switch the System switch to place the system in one of the following Cool System is in Cooling mode Off System is off Heat System is in Heating mode EQUIPMENT DAMAGE HAZARD not use Cooling mode when the outdoor temperature below 50 10 the schedule Press the Set button twice until the message Schedule appears The start time of the period Wake will flash Press the or button to set the time Press the Set button The temperature setting that period will flash To program the temperature settings for the mode place the System switch in To program the temperature settings for heating mode place the switch in Heat Press the or button to set the temperature Press the Set button The start time of the next period will flash To skip a period press the Hold button for four seconds that period is displayed When a period is skipped dashes instead of the time and temperature display for the Only the Wake period cannot be skipped Repeat steps 2 through 6 for each of the remaining periods Once all adjustments are made press the Run button to save and exit The changes are also saved if you do not press button for 60 seconds override of schedule temporarily ignore the programmed schedule press or until desired temperature is displayed The word Temporary will on the screen and the period display will flash to indicate that current period has been overridden The new temperature will be until the next period begins Pressing or once will display the setpoint temperature change the setpoint temperature press either button more than the Run button if you wish to cancel the temporary setting the beginning of the next period override of schedule permanently ignore the programmed schedule press or until desired temperature is displayed Then press the Hold button to the new temperature indefinitely The word Hold will appear the screen the Run button if you wish to cancel the override and resume programmed schedule The word Hold will disappear and the will be set to the temperature programmed for the current Battery replacement the System switch to Off before removing the Otherwise the heating cooling system could activated even when batteries are removed two fresh AAA batteries when Lo Batt low batteries flashes the screen The icon appears for 60 days before the batteries are Replace batteries once a year or when you will be away for than a month settings are stored in non volatile permanent memory Only clock must be set if the thermostat was without batteries In case of difficulty is blank cannot be On is appears on the appears on the appears on the appears on the Ensure two fresh AAA alkaline batteries are correctly installed The System switch is off You are setting the temperatures outside their allowable ranges Heat 40 to 90 4.5 to 32 Cool 50 to 99 10 to 37 The compressor protection delay has been activated Cooling will be activated until the delay ends maximum of five minutes The ambient measured temperature is above 122 50 The ambient measured temperature is below 32 0 The temperature sensor circuit is opened Replace the thermostat The temperature sensor circuit is shorted Replace the thermostat Technical Data Supply 2 AAA batteries Load 1 A 24 VAC per output Ranges Heat 40 to 90 4.5 to 32 Cool 50 to 99 10 to 37 Ambient Temperature 32 to 122 0 to 50 Temperature Relative Humidity 5 to 90 non condensing Dimensions H x W x D 4.7 x 2.9 x 1.1 120 mm x 74 mm x 28 mm to 130 40 to 55 Warranty warrants this product excluding battery to be free from defects in the or materials under normal use and service for a period of one 1 year the date of purchase by the consumer If at any time during the warranty period the is determined to be defective or malfunctions Honeywell shall repair or replace it Honeywell s option the product is defective it with a bill of sale or other dated proof of purchase to the place from which purchased it or Honeywell Customer Care at 1 800 468 1502 Customer Care will make the whether the product should be returned to the following address Return Goods Dock 4 MN10 3860 1885 Douglas Dr N Golden Valley 55422 or whether a replacement product can be sent to you ANY warranty does not cover removal or reinstallation costs This warranty shall not if it is shown by Honeywell that the defect or malfu

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