Honeywell TP978A-E manual

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Table of contents for the manual

  • Page 1

    ® U.S. Registered Trademark Copyright © 1997 Honeywell Inc. • All Rights Reserved SER VICE DA T A TP970 and TP9600 Series Pneumatic Thermostats 75-7134-1 GENERAL The TP970 and TP9600 Series Pneumatic Thermostats are one-, two-, or three-pipe, proportioning thermostats with bimetal elements. They are suitable for controlling dampers and/or valve[...]

  • Page 2

    2 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 SPECIFICA TIONS Maximum Safe Air Pressure: 25 psi (172 kPa) Maximum Safe T emperature: 150F (66C) (continued) See T ables 1 though 6 for additional specifications. These tables represent the direct replacements of existing thermostats at the time of the introduction of the 2000 series o[...]

  • Page 3

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 3 75-7134—1 T able 1. TP970A-D Thermostat Specifications (continued).* T able 2. TP971A-E Thermostat Specifications.* (continued) Old Model No. New Model No. Description Setpoint Supply Air Pressure psi (kPa) Degrees Throttling Range Special Features TP970B 1069 TP970B 2069 RA, 2-Pipe 60-90 ° F 18[...]

  • Page 4

    4 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 T able 2. TP971A-E Thermostat Specifications (continued).* Old Model No. New Model No. Description Setpoint Supply Air Pressure psi (kPa) Degrees Throttling Range Special Features — TP971A 2110 DA, Heating, 2-Pipe 60-90 ° F DAY Range 13 or 18 Adjustable 2- 10 ° F (1.1-5.6 ° C) Quic[...]

  • Page 5

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 5 75-7134—1 T able 3. TP972A Thermostat Specifications.* Action Supply Air Degrees Old Model No. New Model No. Left Bimetal Right Bimetal Setpoint Pressure psi (kPa) Throttling Range Special Features TP972A 1002 TP972A 2002 60-90 ° F 13 (Cooling) or Adjustable — TP972A 1010 TP972A 2010 R.A. D.A.[...]

  • Page 6

    6 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 T able 4. TP973A and B Thermostat Specifications.* Old Model No. New Model No. Action Setpoint Supply Air Pressure psi (kPa) Degrees Throttling Range Special Features TP973A 1068 TP973A 2068 DA 60-90 ° F 18 (124) Adjustable 2-10 ° F Universal Modernization Kit with Universal Window Co[...]

  • Page 7

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 7 75-7134—1 T able 5. TP974A, TP978A-E, TP979A-E Thermostat Specifications. Old Model No. New Model No. Action Setpoint Supply Air Pressure psi (kPa) Degrees Throttling Range Special Features TP974A 1000 TP974A 2000 DA, 1- or 2-Pipe Sensor Bleed Type 50-100 ° F (10-38 ° C) Range 18 (124) 3-15 (21[...]

  • Page 8

    8 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 T able 6. TP9600 Thermostat Specifications. Model No. Description Setpoint Slot Includes Stat. Single Temperature, Two-Pipe: TP9600A 1007 DA, Open Windows Open TP970A 2004 TP9600B 1006 RA, Open Windows Open TP970B 2002 TP9603A 1001 DA, Close Windows Closed TP970A 2004 TP9603B 1000 RA, C[...]

  • Page 9

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 9 75-7134—1 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (100) (90) (80) (70) (60) (50) (40) (30) (20) (10) 0 15 12.5 10 7.5 5 2.5 15 12.5 10 7.5 5 2.5 SETPOINT SETPOINT (8) (7) (6) (5) (4) (3) (2) (1) (8) (7) (6) (5) (4) (3) (2) (1) BRANCHLINE PRESSURE—PSI (kPa) DEVIATION IN SPACE TEMPERATURE—DEGREES F[...]

  • Page 10

    10 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 1 2 M HI LO N.C. N.O. D/N MP516C FAN P638 G TP971 C VALVE HEATING COIL H 120V AC 50/60 HZ AIR STREAM STAT 13/18 PSI (90/124 kPa) D/N MSB K H FILTER DISCHARGE AIR OUTDOOR AIR RETURN AIR C3541 Fig. 7. TP971C T ypical Operation. TP972A and TP9620A The standard TP972Aand TP9620A is RA for [...]

  • Page 11

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 11 75-7134—1 TP979A-E The TP979 thermostats provide independent control of heating and cooling with dual thermostats and separate setpoints and branch lines. This enables ZEB operation without selected actuator springs or ratio relays (Fig. 12). 64F 66F 68F 70F 72F 74F 76F 78F 18C 20C 22C 24C 26C Z[...]

  • Page 12

    12 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 Calibration NOTES: 1. The antihum spring (Fig. 15) must be free. Be sure the spring just touches the throttling plate and is not wedged against it (does not apply to all TP970C and D or any TP970 series starting with 2000, i.e., TP972A2143 and TP9600 series). 2. The thermostats are ver[...]

  • Page 13

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 13 75-7134—1 TP972A and TP9620A 1. With 13 psi (90 kPa) main air pressure, turn the DA Y (SUMMER) (left) calibration screw (Fig. 15) until the gage reads 0 psi (0 kPa). 2. T urn the calibration screw in the opposite direction until the gage reads 8 ± 1 psi (55 ± 7 kPa). 3. With 18 psi (124 kPa) m[...]

  • Page 14

    14 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 TROUBLESHOOTING See T able 7 for troubleshooting procedures. T able 7. TP970 Series Thermostat T roubleshooting Procedures. Problem Possible Cause Solution* Excessive noise If there is an antihum spring, it is not touching the throttling plate. Reposition spring to touch throttling pla[...]

  • Page 15

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 15 75-7134—1 REP AIR Thermometer Replacement NOTE: The following procedure requires a 1/4-in. (6 mm) nut driver and a small screwdriver . 1. Insert the blade of a small screwdriver under the bimetal (Fig. 17) and pry up. Older style thermostats have a locking ring. Insert the blade between the ring[...]

  • Page 16

    16 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 O-RING NOZZLE, THRO TTLING PLA TE AND BIMET AL ASSEMBL Y NOZZLE, THRO TTLING PLA TE AND BIMET AL ASSEMBL Y M12208 BOTT OM VIEW OF BIMET AL ASSEMBL Y SCREW SCREW ANTIHUM SPRING OR CONE SCREW IF THERE IS NO ANTIHUM SPRING/CONE, THERE IS AN ADHESIVE P APER DO T ON THE THROTTLING PLA TE. T[...]

  • Page 17

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 17 75-7134—1 M12205 SPRING LEVER COVER PLATE CAUTION: THIS PIN IS FREE TO DROP OUT WHEN LEVER IS RELEASED. Day/Auto Lever Assembly Replacement 1. Remove the three Phillips head screws that fasten the lever mechanism to the back of the thermostat (Fig. 20). 2. Lift off the cover plate and remove the[...]

  • Page 18

    18 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 PARTS AND ACCESSORIES Parts List TP970-TP974 and TP9600-TP9630 See Figures 22 and 23, and T able 8 for TP970-TP974 and TP9600-TP9630 Thermostat repair parts and assemblies. 1 6 1A 1B 1C 1D 7 8 9 10B 10 * 10C 10D 11 12 2 1 M12210 2 REPLACE THE SETPOINT CAM ASSEMBL Y AND NOZZLE, THRO TTL[...]

  • Page 19

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 19 75-7134—1 T able 8. TP970-TP974 and TP9600-TP9630 Thermostat Repair Parts and Assemblies. Key No . Part No. Description 1 14004459-001 Scaleplate Bag Assembly (60 to 90F) - TP970A-D, TP973A, B 14004459-002 Scaleplate Bag Assembly (40 to 70F) - TP970A-D 14004459-003 Scaleplate Bag Assembly (15 to[...]

  • Page 20

    20 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 TP978E See Figure 24 and T able 9 for TP978E Thermostat repair parts and assemblies. The TP978A-D Thermostats have not been replaced. 5 4 3 2 1 M12207 Fig. 24. TP978E Exploded View . Key No . Part No. Description 10 14002051-001 Pneumatic Assembly, TP970-TP973 - Includes 10B and 10C be[...]

  • Page 21

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 21 75-7134—1 T able 9. TP978E Thermostat Repair Parts and Assemblies. Model A BCDE Key No. Part No. Description 1 — Screw, No. 4 x 3/16 pan head (2) X X 2 — Washer X 3 14002387-004 Nozzle, Throttling Plate, Bimetal Assembly (DA, left) X 14002098-004 Nozzle, Throttling Plate, Bimetal Assembly (R[...]

  • Page 22

    22 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 T able 1 1. TP970 Series Thermostat Accessories. Part No. Description Airhead: 14000686-002 Two-pipe red—angled 14000742-002 Two-pipe red—straight 14001527-001 Three-pipe —white, straight 14004558-002 Tube-Spring assembly—6 inch branch, black 14004558-001 Tube-Spring assembly?[...]

  • Page 23

    TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 23 75-7134—1 T able 12. TP970 Series Thermostat Covers—Satin Chrome. Part Number 14004406-XXX* Honeywell Logo No Logo Setpoint Slot Setpoint Slot Open Closed Open Closed Window Mounting Mounting Mounting Mounting Insert Display Unit Vert Horiz Vert Horiz Vert Horiz Vert Horiz None —— — — [...]

  • Page 24

    24 TP970 AND TP9600 SERIES PNEUMA TIC THERMOST A TS 75-7134—1 75-7134—1 R. F . Re v . 12-97 Home and Building Control Honeywell Limited-Honeywell Limitée 155 Gordon Baker Road North York, Ontario M2H 3N7 Home and Building Control Honeywell Inc. Honeywell Plaza P.O. Box 524 Minneapolis MN 55408-0524 Printed in U.S.A. on recycled paper containin[...]