Honeywell T8501D- Manuals

69-1049—1 6 T8501D DELUXE ZONE THERMOSTAT IMPORTANT Review the settings to confirm that they matchthe system. To exit the Installer Setup, press andhold the Information i key until the display returns to normal (approximately three seconds). INSTALLER SYSTEM-TEST Use the Installer System-Test to che...

69-1049—1 7 T8501D DELUXE ZONE THERMOSTAT Table 4. Installer Self-Test Options (Continued). NOTE: Press and hold the increase ▲ and decrease ▼ keys together for three seconds to exit the system-test. The system-test will time out after ten minutes without any key presses. 2. Press the increase ▲ key...

69-1049—1 8 T8501D DELUXE ZONE THERMOSTAT 5. Press the increase ▲ key again to display the EEPROM identification code. 6. Press and hold the increase ▲ and decrease ▼ keys together, until the room temperature isdisplayed, to exit the system-test. The system-testtimes out after ten minutes without an...

69-1049—1 9 T8501D DELUXE ZONE THERMOSTAT Troubleshooting Guide (Continued). a Available on select models. Symptom Possible Cause Action Heating will notcome on. No power to the thermostat. • Check that C terminal is connected to the system transformer. • Check for 24 Vac between C and R and between...

69-1049—1 12 T8501D DELUXE ZONE THERMOSTAT Helping You Control Your World ® 69-1049—1 J.H. Rev. 6-97 Printed in Taiwan R.O.C. www.honeywell.com/yourhome Honeywell Trol-A-Temp57 Bushes LaneElmwood Park, NJ 07407-3204(201) 794-8004(800) 828-8367Fax: (201) 794-1359

69-1049—1 6 T8501D DELUXE ZONE THERMOSTAT IMPORTANT Review the settings to confirm that they matchthe system. To exit the Installer Setup, press andhold the Information i key until the display returns to normal (approximately three seconds). INSTALLER SYSTEM-TEST Use the Installer System-Test to che...

69-1049—1 7 T8501D DELUXE ZONE THERMOSTAT Table 4. Installer Self-Test Options (Continued). NOTE: Press and hold the increase ▲ and decrease ▼ keys together for three seconds to exit the system-test. The system-test will time out after ten minutes without any key presses. 2. Press the increase ▲ key...

69-1049—1 8 T8501D DELUXE ZONE THERMOSTAT 5. Press the increase ▲ key again to display the EEPROM identification code. 6. Press and hold the increase ▲ and decrease ▼ keys together, until the room temperature isdisplayed, to exit the system-test. The system-testtimes out after ten minutes without an...

69-1049—1 9 T8501D DELUXE ZONE THERMOSTAT Troubleshooting Guide (Continued). a Available on select models. Symptom Possible Cause Action Heating will notcome on. No power to the thermostat. • Check that C terminal is connected to the system transformer. • Check for 24 Vac between C and R and between...

69-1049—1 12 T8501D DELUXE ZONE THERMOSTAT Helping You Control Your World ® 69-1049—1 J.H. Rev. 6-97 Printed in Taiwan R.O.C. www.honeywell.com/yourhome Honeywell Trol-A-Temp57 Bushes LaneElmwood Park, NJ 07407-3204(201) 794-8004(800) 828-8367Fax: (201) 794-1359