Honeywell RTH5100 Support and Manuals

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Owner's Manual - Page 1

... 69-1722 Read and Save these Instructions ® U.S. Operating Instructions RTH5100B Non-programmable Thermostat OPERATING INSTRUCTIONS The RTH5100B Thermostat provides electronic control of 24 Vac single stage heating and cooling systems or 750 mV heating systems. For assistance with your Honeywell product please visit www.honeywell.com/yourhome or call Honeywell Customer Care toll free at...
Owner's Manual - Page 2

Contents Features 3 Get to Know Your Thermostat 4 Thermostat 4 Display 5 Operate Your Thermostat 6 Set System Setting 6 Set Fan Setting 7 Change Temperature Setting 8 Replace Batteries 9 Review Battery Tips 13 Built-in Compressor Protection 14 Accessory/Replacement Parts 15 Troubleshooting Tips 16 Customer Assistance 21 Limited One-Year Warranty 22 69-1722 2
Owner's Manual - Page 3

Get To Know Your Thermostat 3 69-1722 Simultaneously displays both room temperature and temperature setting. • Easy Change Battery Holder. • Built-in the dark. • Precise Comfort Control: ±1ºF of your set temperature. • Simplified Operation: Soft-key controls. Features • Large, Clear, Backlit Display: Easy-to-see and read-even in Compressor...
Owner's Manual - Page 4

... Fan Auto SysteCmoolOn Cool PRESS BATTERY HOLDER TWO AAA ALKALINE BATTERIES TEMPERATURE SETTING BUTTON RAISES TEMPERATURE SETTING FAN BUTTON SELECTS AUTO OR ON TEMPERATURE SETTING BUTTON LOWERS TEMPERATURE SETTING SYSTEM BUTTON SELECTS HEAT, OFF OR COOL M22010 69-1722 4 Get To Know Your Thermostat Thermostat DIGITAL DISPLAY BATTERY HOLDER LATCH PRESS TO RELEASE BATTERY HOLDER.
Owner's Manual - Page 5

Get to Know Your Thermostat (Cont) Display INSIDE TEMPERATURE INDICATES BATTERIES ARE LOW AND MUST BE REPLACED Inside Replace Batt HeatCool Setting TEMPERATURE SETTING Fan On Auto Heat On Cool On System Heat Cool Off INDICATES THERMOSTAT IS "CALLING" FOR HEAT OR COOL CURRENT FAN SETTING CURRENT SYSTEM SETTING M22011 5 69-1722
Owner's Manual - Page 6

Service Needed Fan Auto Cool On Cool PRESS THE SYSTEM BUTTON TO SELECT HEAT, OFF OR COOL M22012 69-1722 6 Off-Both the heating and cooling systems are off. Air conditioning compressor damage possible. Do not operate cooling system when outdoor temperature is below 50 °F (10 °C). Operate Your Thermostat Set System Setting Press...
Owner's Manual - Page 7

Operate Your Thermostat (Cont) Set Fan Setting Press the Fan button to select Auto or On: Auto-Normal setting for more efficient air cleaning. Service Needed Fan Auto Cool On Cool PRESS THE FAN BUTTON TO SELECT AUTO OR ON 7 M22013 69-1722 On-The fan runs continuously. Use this setting for improved air circulation or for...
Owner's Manual - Page 8

Operate Your Thermostat (Cont) Change Temperature Setting Press the Up or Down button to select the desired temperature setting. The second press of the Up or Down button turns on the backlight. Replace Batt Service Needed Fan System Auto Cool TEMPERATURE SETTING RANGE: HEAT: 40°TO 90°F (4.5°T0 32°C) COOL: 50°TO 99...
Owner's Manual - Page 9

all settings are replaced; REPLACE BATTERY INDICATOR Replace Batt Service Needed Fan System Auto Cool M22015 The thermostat does not lose any settings when the batteries are permanently stored in memory. 9 69-1722 Replace Batteries 1. When the Replace Battery indicator is flashing, replace batteries promptly with two fresh AAA alkaline batteries.
Owner's Manual - Page 14

... the compressor turns off timer expires, "Cool On" or "Heat On"a appears solidly in the display. Built-in Compressor Protection The RTH5100B Thermostat has built-in compressor protection (minimum-off timer, the thermostat flashes "Cool On" or "Heat On"a in the display and the compressor and fan turn on. ________ a Heat Pumps only...
Owner's Manual - Page 17

.... • Check the furnace door to be sure it is set System setting to Installation Instructions, 69-1716. 17 69-1722 Check Installer Setup Number 1, Heating and/or Cooling System Type; Refer to Cool. make sure the setting matches the installed heating and/or cooling system. Cooling • Set the system to respond. • If all of this was...
Owner's Manual - Page 19

Troubleshooting Tips (Cont) If . . . Check and make cooling sure the setting matches the installed systems are not touching. 19 69-1722 warm air in Refer to Installation Instructions, 69-1716 Heat pump Check Installer Setup Number 2, Heat puts out cool Pump Changeover Valve, and make sure it is set to Electric Heat (Setting 1).Refer to Installation Instructions, the cool ...
Owner's Manual - Page 20

...-1716. 69-1722 20 Refer to Installation Instructions, 69-1716. Check Installer Setup Number 1, Heating and/or Cooling System Type, and make sure the setting matches the installed heating and/or cooling system. Heating system does not turn off and the heat temperature setting is set below the room temperature ("Heat On" is running in the display). Heating...
Owner's Manual - Page 21

Customer Assistance For assistance with your Honeywell product please visit www.honeywell.com/yourhome or call Honeywell Customer Care toll free at 1-800-468-1502. MODEL NUMBER xxxxxxxx DATE CODE xxxxxx THERMOSTAT BATTERY HOLDER M22178 Limited One Year Warranty... 21 69-1722 Before calling, please have the thermostat model number and date code available.
Owner's Manual - Page 22

... ANY OTHER FAILURE OF THIS PRODUCT. If, at any time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or replace it (at Honeywell's option) within the terms stated above. If the product is shown by Honeywell that the defect or malfunction was caused by the consumer. Limited One-Year Warranty...

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  • Owner's Manual

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