Honeywell Q7300L 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 © 1996 Honeywell Inc. • • All Rights Reserved Q7300L Series 2000 Commercial Thermostat Subbases APPLICA TION The Q7300L Thermostat Subbase is used with the T7300D,F Thermostat to provide electronic control of commercial 24 Vac single zone HVAC equipment. The T7300/Q7300[...]

  • Page 2

    62-0131—2 2 Q7300L SERIES 2000 COMMERCIAL THERMOST A T SUBBASE Location Subbase without Remote-Mounted Temperature Sensor Install the thermostat about 5 ft (1.5m) above the floor in an area with good air circulation at average temperature. See Fig. 1. Do not install the thermostat where it can be affected by: — drafts, or dead spots behind door[...]

  • Page 3

    62-0131—2 3 Q7300L SERIES 2000 COMMERCIAL THERMOST A T SUBBASE M4839 TT SUBBASE TT T7047C TT T7047C TT T7047G M4842 TT TT SUBBASE T7047C TT T7047C TT T7047C TT T7047C TT T7047C TT T7047C TT T7047C TT T7047C TT T7047C M4841 TT SUBBASE T T T7047G T T T7047G T T T7047G T T T7047G T T T7047G Fig. 3. Two T7047C Sensors and one T7047G Sensor providing [...]

  • Page 4

    62-0131—2 4 Q7300L SERIES 2000 COMMERCIAL THERMOST A T SUBBASE WIRING SUBBASE All wiring must comply with local electrical codes and ordinances. Follow equipment manufacturer wiring instructions when available. Refer to Fig. 9 and 10 for typical hookups. A letter code is located near each terminal for identification. See Table 3 for terminal desc[...]

  • Page 5

    62-0131—2 5 Q7300L SERIES 2000 COMMERCIAL THERMOST A T SUBBASE T ypical W iring Hookups Fig. 9. Q7300L hookup for two-stage heating with three-position ML7984 Valve Actuator/V5013 Valve and one-stage cooling. Fig. 10. Q7300L hookup for single-stage conventional heating systems with single-stage cooling. GH L1 (HOT) L2 POWER SUPPLY. PROVIDE DISCON[...]

  • Page 6

    62-0131—2 6 Q7300L SERIES 2000 COMMERCIAL THERMOST A T SUBBASE Mounting Thermostat on Subbase Mount the thermostat on the subbase after the subbase is installed. 1. Engage tabs at the top of the thermostat and subbase. Fig. 11. 2. Press lower edge of case to latch. NOTE: To remove the thermostat from the wall, first pull out at the bottom of the [...]

  • Page 7

    62-0131—2 7 Q7300L SERIES 2000 COMMERCIAL THERMOST A T SUBBASE OPERA TION Table 4. T7300 Thermostat/Q7300L Subbase Sequence of Operation. a Low speed fan is activated in the heat mode and high speed fan is activated in the cool mode. Remote T emperature Sensing and Override The subbase can be used with the T7147 Remote Sensors to sense temperatur[...]

  • Page 8

    62-0131—2 8 Q7300L SERIES 2000 COMMERCIAL THERMOST A T SUBBASE Home and Building Control Honeywell Limited-Honeywell Limitée 155 Gordon Baker Road North York, Ontario M2H 3N7 Helping You Control Your World ® 62-0131—2 J.H. Rev . 7-97 www .honeywell.com/building/components Home and Building Control Honeywell Inc. Honeywell Plaza P.O. Box 524 M[...]