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Honeywell T7100D Product Data

Microelectronic commercial thermostats and subbases
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APPLICATION

The T7100 Microelectronic Commercial Thermostats and
Q7100 Subbases provide electronic control of 18 to 30 Vac
single zone heating, ventilating and air conditioning
(HVAC) equipment.
® U.S. Registered Trademark
Copyright © 1999 Honeywell Inc. •
T7100D,E,F Microelectronic
Commercial Thermostats and
Q7100A,C,D Subbases
• All Rights Reserved

FEATURES

• Minimum off time for cooling compressor and
heat pumps.
• Field configurable (select models) for:
- °F or °C temperature display;
- automatic or manual changeover;
- electric or conventional heat fan operation.
• Up to two light emitting diodes (LEDs) for easy
reference.
• Remote temperature sensor and setback timer
capability (select models).
• System test simplifies troubleshooting.
Application ........................................................................... 1
Features .............................................................................. 1
Specifications ...................................................................... 2
Ordering Information ........................................................... 2
Installation ........................................................................... 3
Wiring .................................................................................. 5
Settings ............................................................................... 6
Installer Setup ..................................................................... 7
Installer Self-Test ................................................................. 10
Operation ............................................................................ 12
Wiring Diagrams .................................................................. 13
Troubleshooting Guide ........................................................ 15
PRODUCT DATA
Contents
68-0163-3

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  Summary of Contents for Honeywell T7100D

  • Page 1: Table Of Contents

    Q7100 Subbases provide electronic control of 18 to 30 Vac single zone heating, ventilating and air conditioning (HVAC) equipment. ® U.S. Registered Trademark Copyright © 1999 Honeywell Inc. • • All Rights Reserved T7100D,E,F Microelectronic Commercial Thermostats and Q7100A,C,D Subbases FEATURES •...
  • Page 2: Specifications

    Honeywell Inc., 1985 Douglas Drive North Minneapolis, Minnesota 55422-4386 In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
  • Page 3: Installation

    T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES Dimensions: See Fig. 1. 5-5/8 (143) 3-1/4 (83) 1-1/8 (29) 2-1/8 (54) 6-1/8 (156) 4-1/8 (105) M11313 Fig. 1. Thermostat dimensions in in. (mm). RECYCLING NOTICE If this control is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash.
  • Page 4 T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES SUBBASE T7047G T7047G Fig. 3. Two T7047G Sensors providing temperature averaging network for T7100/Q7100 Thermostat/Subbase. SUBBASE T7047C T7047G T7047C Fig. 4. Two T7047C Sensors and one T7047G Sensor providing temperature averaging network for T7100/Q7100 Thermostat/Subbase.
  • Page 5: Wiring

    T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES WALL WIRES THROUGH WALL WALL ANCHORS LEDS Fig. 8. Mounting the subbase. FOR WRAPAROUND FOR STRAIGHT INSERTION INSERTION STRIP STRIP 5/16 IN. (8 MM). 7/16 IN. (11 MM). Fig. 9. Proper wiring technique.
  • Page 6: Settings

    T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES Mounting Thermostat on Subbase Mount the thermostat on the subbase after the subbase is installed. 1. Engage the tabs at the top of the thermostat and subbase. See Fig. 10. 2. Press the lower edge of the case to close and latch.
  • Page 7: Installer Setup

    T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES Always check the display to determine if the thermostat is controlling to the comfort, temporary or remote setpoint. Temporary is displayed when the Override key is pressed or the occupancy sensor or remote setback timer is energized.
  • Page 8 T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES Mode Number (Press i to change) Select Display Application (T7100F only). operation Output stages Depends of heating. subbase Depends Stage 1. Heating cycle on model Stage 2. rate Output stages of cooling (T7100F only).
  • Page 9 Number 02 must be set to 01 to extend fan operation. Number 22 must be set to 01 and remote sensor(s) must be installed. Keypad lockout is enabled and disabled by DIP switch 1 on back of thermostat. IMPORTANT Review the settings to confirm that they match the system. Press i to exit the Installer Setup.
  • Page 10: Installer Self-Test

    T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES INSTALLER SELF-TEST Use the Installer Self-Test to check the thermostat configurations and operation. Refer to Table 7 for a list of the available Self-Tests. To start the Self-Test: NOTE: The minimum off time for compressors is bypassed during the Installer Self-Test.
  • Page 11 T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES 5. Press the increase key again to display the EEPROM identification code. (Example: 222 = EEPROM ID 222). Key to Test Press Number Heating Equipment Self-Test Enter heating equipment Self-Test. Stage-one heat turns on. When Installer Setup number 01 is 01 or 02 is 01, the system fan is also energized.
  • Page 12: Operation

    T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES OPERATION Thermal Performance During severe weather, the thermostat actually controls closer to the setpoint than a electromechanical control. This is because the heat anticipator is replaced by two electronic control strategies—cycling by heat anticipation and proportional plus integral control.
  • Page 13: Wiring Diagrams

    T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES Minimum-Off Timing A minimum-off timer assures that the cooling compressor or heat pump compressor does not come on again for at least five minutes after it turns off. The minimum-off timer is triggered when the compressor goes off and when the system switch is changed.
  • Page 14 CONTACTOR 1 (HOT) CAUTION: EQUIPMENT DAMAGE. CAN BURN OUT THERMOSTAT. DO NOT CONNECT POWER TO THE D TERMINAL. DO NOT PARALLEL SEVERAL THERMOSTATS FROM A SINGLE SOURCE UNLESS ISOLATION RELAYS ARE USED. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
  • Page 15: Troubleshooting Guide

    CHANGEOVER VALVE CAUTION: EQUIPMENT DAMAGE. CAN BURN OUT THERMOSTAT. DO NOT CONNECT POWER TO THE D TERMINAL. DO NOT PARALLEL SEVERAL THERMOSTATS FROM A SINGLE SOURCE UNLESS ISOLATION RELAYS ARE USED. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
  • Page 16 T7100D,E,F MICROELECTRONIC COMMERCIAL THERMOSTATS AND Q7100A,C,D SUBBASES Troubleshooting Guide (continued) Symptom Possible Cause Heating does not Thermostat minimum Off time is come on. activated and wait indicator is (continued) displayed (T7100F only). System selection is not set to Heat. O or B terminal miswired (select models).

This manual is also suitable for:

T7100eT7100fQ7100aQ7100cQ7100d