Remove existing thermostat cover and thermostat. IMPORTANT! Turn off the power to the furnace at the mainpower panel or at the furnace. To install your thermostat, you should havethe following tools and materials.ĬAUTION: Do not remove any wiring from existing thermo-stat before reading the instructions carefully. This thermostat includes two #8 slotted screws and two wall an-chors for mounting. NOTE: If you plan to be away from the premises over 30 days, werecommend that you replace the old batteries with new alkalinebatteries prior to leaving. In this condition, there is no temperature control ofyour dwelling. Oncethe batteries have become too low to ensure proper operation,your system will be turned Off, and the display will be cleared ex-cept for flashing Low Battery Indicator on the LCD display.ĬAUTION: When only the battery icon flashes on the display,the thermostat is shut down, and your system will no longeroperate. You have approximately 1 minuteto change the batteries and keep the thermostat’s settings. When this message oc-curs, install new alkaline batteries. However, when the batteries become drained, the LowBattery Indicator will flash on the display. Battery WarningTwo fresh AA alkaline batteries should provide well over one yearof service.It does notprevent a rapid compressor restart due to short power outages. This feature will preventdamage to your compressor caused by rapid cycling. Compressor ProtectionThis thermostat provides a 3.5 minute delay after shutting off thecooling system before it can be restarted.“HI” will be displayed if the temperature is higher than99☏ (37☌), and “LO” will be displayed if the temperature is lowerthan 30☏ (0☌).This thermostat will automatically cutoff in Heat mode if the tem-perature rises above 95☏ (35☌), and automatically cutoff in Coolmode if the temperature drops below 45☏ (7☌). Temperature RangeThis thermostat can be set between 45☏ and 95☏ (7☌ and 35☌).However, it will display room temperatures from 30☏ to 99☏ (0☌and 37☌).This thermostat will NOT control single-stage or multi-stage heatpumps or 110/220 V baseboard electric heating systems. This thermostat is designed to work on the following systems:.IMPORTANT INFORMATION Hunter 42999b Owners Manual Thank you for buying a Hunter product! Please read this Hunter 42999b Owners Manual for complete instructions on installing andoperating your thermostat. Note: None of the reset functions will erase the Easy Retrieve "backup", if one has been made.Congratulations! Your new Hunter thermostat will provide years of reliable service.Using this digital thermostat will provide more uniform comfort inyour home through the seasons. If + is pressed again, the selection will be reset. Press the + button to select it.Ī confirmation message will appear. Use the up and down arrows to highlight the desired type of Reset. Names: Clears all user-programmed names, including Programs, Stations, and SSG's.Īll Data: Clears all of the above items, and the controller returns to the original out-of-the-box programming state. Logs: Clears all Station alarm logs and Controller alarm logs. Programs: Erases Day schedules, start times and run times.įlow Totals: Clears the running flow total histories (they will restart with 0.0 for all entries), only. The display will show the following Reset options: Release the Reset button and continue holding the Programs button until the Reset Memory screen appears (then release the Programs button).Press and hold the Programs button, and at the same time press in the recessed Reset button with the tip of a ballpoint pen.This process will take 1-2 minutes and erase all data on the controller. Navigate to More, click Controller Settings. 12:00 will flash on the display, now the controller can be reprogrammed.After two seconds the screen will go blank and 4 segments will appear.From the Time and Day display, press and hold the, and keys.Remove the 9V battery from the controller and wait 1 minute.While holding down the three buttons, press and release the Reset button on the back of the front panel.Hold down the, and program buttons simultaneously.Pro-C (older models)(with Manual All Station dial position) Press and release the RESET button on the back of the front panel.Pro-C (newer models)(with Seasonal Adjust Dial Position) All the memory has been cleared and the controller may now be reprogrammed. When 'DONE' appears on the LCD, release the, and buttons.Press and release the RESET button on the right side of the controller.Press and release the RESET button in the lower wiring compartment.Plug the controller's transformer back in.Greenhouse, Nursery, and Open-Field Irrigation.
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