Electronic Heat-Pump Thermostat T8501, T8511, T8524 OWNER’S GUIDE 69-1629-1
FEATURES Comfort is achieved through matching the correct equipment and controls. This thermostat is designed to provide the maximum comfort for your needs. Some of the basic offerings are: • Simple and easy to use. The ▲ and ▼ keys make it easy for you to change your temperature setting. • Large digital display. You can easily read the current room temperature at a glance. • No need for batteries. Batteries are not required because your temperature settings are held permanently in memory.
NOTE: Em.Ht. is available only on T8511 Heat Pump models. Em. Ht.: Setting when your home needs heat, but your equipment needs servicing or is not working correctly. The thermostat controls only the backup heat. The heat pump is off. SETTINGS Setting SYSTEM and FAN Keys Change System and Fan settings with System and Fan keys inside thermostat door. First set the SYSTEM key: Cool: Off: Heat: Auto: (Select Models) Normal setting for months when your home needs air conditioning.
Aux. Ht. in the display when the auxiliary heating equipment operates. Then set the FAN key: Auto: Normal setting for most homes. Equipment controls the fan. On: The fan runs continuously. Use for improved air circulation and air quality. Displaying Temperature Setting NOTE: Your temperature setting can be set anywhere from 55° to 99°F (13° to 37°C).
2. To raise the temperature setting, press the ▲ key. When in the cooling mode, raising the temperature before you leave for work or school also lowers your energy costs. Changing Temperature Setting 1. To lower the temperature setting, press the ▼ key. When in the heating mode, lowering the temperature at night or during the day can lower your energy costs. CAUTION INCREASE TEMPERATURE SETTING i Equipment Damage Hazard. Can cause permanent damage to compressor or other equipment.
TROUBLESHOOTING GUIDE Symptom Heating or Cooling does not come on. Action Check that the System key on the thermostat is set to Heat or Cool. Check if the circuit breaker is tripped–reset the circuit breaker. Check if the fuse is blown–replace the fuse. Check for air movement at the register. Check power to the heating or cooling equipment. Temperature setting is too wram or cool. Adjust the temperature by pressing either the ▲ or ▼ key.
LIMITED WARRANTY Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. 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 a reasonable period of time.
If you have any questions concerning this warranty, please write our Honeywell Customer Relations, 1985 Douglas Drive North, Golden Valley, MN 55422. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. CUSTOMER ASSISTANCE If, after reading this guide, you have any questions concerning the operation of your thermostat, please visit www.honeywell.com/yourhome web site or call the information line at 1-800-468-1502.
