Instruction/ maintenance manual of the product TP974A Honeywell
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® 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.
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.
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.
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.
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.
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 Thro.
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.
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.
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.
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.
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 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.
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).
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.
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.
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.
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.
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.
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 .
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 .
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.
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 .
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 O.
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.
An important point after buying a device Honeywell TP974A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honeywell TP974A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Honeywell TP974A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell TP974A you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell TP974A will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell TP974A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honeywell TP974A.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell TP974A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell TP974A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
