Bryant DUAL FUEL THERMOSTAT TSTAT manual

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Table of contents for the manual

  • Page 1

    NOTE: Read the entire instruction manual before starting the installation. SAFETY CONSIDERATIONS Read and follow manufacturer instructions carefully. Follow all local electrical codes during installation. All wiring must conform to local and national electrical codes. Improper wiring or installa- tion may damage thermostat. Recognize safety informa[...]

  • Page 2

    If selection of balance point temperature is such that it is below thermal balance point, all operation between these 2 temperatures will be part HP and part furnace. A heating cycle will begin with HP operation. Because HP has insufficient capacity, structure temperature will slowly fall. After a time, thermostat will issue next stage call, turnin[...]

  • Page 3

    TABLE 1—HEATING STAGES WIRING DIAGRAM SYSTEM TYPE OUTDOOR TEMP/ BAL. PT. TEMP STAGE 1 STAGE 2 STAGE 3 Fig. 2 1-speed HP 1-stage furnace Above HP Furnace — Below Furnace — — Fig. 3 1-speed HP 2-stage furnace Above HP Furnace Lo Furnace Hi Below Furnace Lo Furnace Hi — Fig. 4 2-speed HP 1-stage furnace Above HP Lo HP Hi Furnace Below Furnac[...]

  • Page 4

    9. Push excess wiring into wall. Seal hole in wall to prevent drafts. 10. Snap hinge back together. 11. Close thermostat door. 12. Turn ON power to unit. On power up, display shows dF for a few seconds to indicate that it is a dual fuel thermostat. IV. SET THERMOSTAT CONFIGURATION Configuration options, like DIP switch settings, are intended to be [...]

  • Page 5

    4. Press MODE button until EHEAT is displayed. Furnace should begin to operate within 5 minutes. D. Cooling Operation 1. Press MODE button until COOL is displayed under the mode annunciator. 2. Press down button until display reads 10 degrees below room temperature. Cooling system should begin to operate within 5 minutes. VII. SELECT DESIRED OPERAT[...]

  • Page 6

    A95218 Fig. 5—Two-Stage or Variable-Speed Furnace with 2-Speed Heat Pump Y/Y2 W/W1 R 24 VAC HOT FAN FURNACE COMPRESSOR HI RVS COOLING COMPRESSOR LO DUAL FUEL THERMOSTAT TWO-SPEED HEAT PUMP 24 VAC COM RVS HEATING RVS SEN SING OUTDOOR SENSOR CONNECTION S2 S1 L B G R R Y2 G C C C O/W2 Y1/W2 TWO-STAGE OR VARIABLE SPEED FURNACE W2 O SEE NOTES 1 AND 2 [...]

  • Page 7

    OPERATIONAL INFORMATION FIVE-MINUTE COMPRESSOR TIMEGUARD This timer prevents the compressor from starting unless it has been off for at least 5 minutes. It can be defeated for 1 cycle by simultaneously pressing the FAN mode button and the INCREASE TEMPERATURE button. FIFTEEN-MINUTE CYCLE TIMER This timer prevents the start of a heating or cooling c[...]

  • Page 8

    © 1995 BDP Co. • P.O. Box 70 • Indianapolis, IN 46206 Printed in U.S.A. —8— tstat06 Catalog No. 92-33TS-TA28B[...]