Honeywell DELUXEHEATPUMP T8511G manual

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Table of contents for the manual

  • Page 1

    X-XX UL INST ALLA TION INSTRUCTIONS ®U.S. Registered Trademark Copyright © 1997 Honeywell Inc. • • All Rights Reserved T851 1G Deluxe Heat Pump Zone Thermostat APPLICA TION The T8511G Deluxe Heat Pump Zone Thermostat provides electronic control of 24 Vac heat pump zoned systems. Refer to Table 1 for a general description of the thermostat. Ta[...]

  • Page 2

    69-1052—1 2 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT Fig. 1. Typical location of thermostat. Fig. 2. Mounting the wallplate. W iring All wiring must comply with local electrical codes and ordinances. Refer to Fig. 3 and 4 for typical hookups. A letter code is located near each terminal for identification. CA UTION Disconnect power before wiring to[...]

  • Page 3

    69-1052—1 3 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT Fig. 3. Typical wiring diagram for T8511G with zone 1 MABS II control panel. Fig. 4. Typical wiring diagram for T8511G with zone 1 TotalZone® control panel. Fig. 5. Proper wiring technique. Mounting Thermostat 1. Engage tabs at the top of the thermostat and wallplate. See Fig. 6. 2. Press lower[...]

  • Page 4

    69-1052—1 4 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT SETTINGS System and Fan Settings System settings control the thermostat operation as follows: Em Heat: Emergency heat relay is automatically controlled by the thermostat. The cooling system is off. The compressor is de-energized. Heat: The thermostat controls the heating. Off: Both the heating a[...]

  • Page 5

    69-1052—1 5 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT Table 2. Thermostat Installer Setup Options. a Available on select models. Installer Setup Number (Press i key Factory Setting Other Choices (Press ▲ or ▼ key to change) Actual Select to change) Display Description Display Description Setting Not used 01 thru 04 — — — — — Heating c[...]

  • Page 6

    69-1052—1 6 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT IMPORTANT Review the settings to confirm that they match the system. To exit the Installer Setup, press and hold the Information i key until the display returns to normal (approximately three seconds). INST ALLER SYSTEM-TEST Use the Installer System-Test to check the thermostat operation. Refer [...]

  • Page 7

    69-1052—1 7 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT Table 4. Installer System-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 to display the production da[...]

  • Page 8

    69-1052—1 8 T8511G DELUXE HEAT PUMP 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 is displayed, to exit the system-test. The system-test times out after ten minutes without any key presses. TROUBLESHOOTING[...]

  • Page 9

    69-1052—1 9 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT Troubleshooting Guide (Continued). Symptom Possible Cause Action Heating will not come 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 R and Y1 terminals. — If missing 24 Vac: — check if the ci[...]

  • Page 10

    69-1052—1 10 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT[...]

  • Page 11

    69-1052—1 11 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT[...]

  • Page 12

    69-1052—1 12 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT 69-1052—1 J.H. Rev . 6-97 Pr inted in T aiwan R.O .C. www .honeywell.com/y ourhome Helping You Control Your World ® Honeywell Trol-A-Temp 57 Bushes Lane Elmwood Park, NJ 07407-3204 (201) 794-8004 (800) 828-8367 Fax: (201) 794-1359[...]