Honeywell VP525C, Engineering Manual, Page: 23 / 228

Thermostats
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70-6925 15
TP973 Pneumatic Thermostat
One- or two-pipe, single temperature, low capacity, pneumatic
thermostat used to provide proportional control of pneumatic
valves and damper actuators in heating and air conditioning
systems. Replacement kits are available for Johnson, Powers,
Robertshaw, Barber-Colman, and older Honeywell pneumatic
thermostats.
• Durable TP970 Series Thermostat. Direct Acting (DA) and Reverse
Acting (RA) models are available.
• Backplate has molded air connections-no separate fittings needed.
• Universal locking cover with satin chrome finish and horizontal,
vertical, or blank window options available.
• Other Covers Available.
• Low capacity thermostat.
• Built in restrictor for two-pipe applications.
TP973 Typical Piping (One-pipe) Application Type: Wall Thermostat, Single Temperature
Dimensions, Approximate: 3 1/4 in. high x 2 in. wide x 1 5/8 in. deep
(83 mm high x 51 mm wide x 41 mm deep)
Airflow Usage: 0.011 scfm (5.2 mL/s)
Mounting: Wall
Operating Temperature: 100 F
Storage Temperature: 150 F maximum (66 C maximum)
Setpoint: Single
Number of Pipes: 1 or 2
Remote Bulb: No
Sensor Element: Bimetal
Maximum Operating Pressure: 25 psi (170 kPa)
Accessories:
14002913-004
0.005 in. Blue In-line Filtered Restriction Assembly; Inlet:
1/4 in., Outlets: 5/32 in. and 5/32 in
14002430-001 Thermostat Guard
14002362-001 Duct Sampling Chamber
14003192-001 Wallplate adapter kit. Adapts HP970 or TP970 series
stats to HP900 and TP900 flush mounted and TP910 series flush or
surface mounted installations
14004447-001 Setpoint Cam Assembly for TP970A1004, A1012,
A1020, A1038, A1046, A1053, A1095, A2004, A2012, A2020, A2038,
A2053, A2095; TP970C; TP972A1143, A2143; TP973A1001, A1019,
A1127
14004447-002 Setpoint Cam Assembly for TP970B1002, B1010,
B1028, B1036, B2002, B2010, B2028, B2036; TP970D;
TP972A1002, A1010, A1028, A1044, A2002, A2010, A2028, A2044;
TP973B1009, B1017, B1025, B1108
14004439-001 Setpoint Extension
305965 1-1/2 in. diameter, 1/8 NPT center stem back mount Pressure
Indicating gauge (0 to 30 psi scale) with +/- 4% accuracy
AK3863 Honeywell Thermostat Tool Kit, TP970/TP900
CCT729A Gauge Adapter for Calibration. Add 305965 0 to 30 psi
gauge for Complete Tool.
CCT735A Thermostat Calibration Tool includes Allen wrench for cover
installation.
Replacement Parts:
14001865-001 Filter Cartridge Assembly
14002053-001 Back Plate Assembly
14002573-001 Modernization Kit to convert all 1 & 2 pipe Honeywell &
competitive pneumatic stats to TP970, TP971A, TP972, TP973,
TP974, TP9600 family; HP970, HP971 and HP972
14002374-004 Restrictor Block Assembly,.005 in., For TP970A-D;
TP971A-E except C; TP972A; TP973A-B; TP9600 family; HP970A-B;
and HP972B
14004460-001 Nozzle, Throttling Plate and Bimetal Assembly, DA, Left
side
14004460-002 Nozzle, Throttling plate and Bimetal Assembly, reverse
acting, left side
Product
Number Action
Setpoint Temperature
Range Throttling Range
Includes Comments** (F) (C) (F) (C)
TP973A2076 Direct Acting 60 F to 90 F — 2 F to 10 F — Order Cover Separately For one-pipe order an external
.005 in. restriction
TP973A2084 Direct Acting — 15 C to 30 C — 1 C to 5 C Order Cover Separately For one-pipe order an external
.005 in. restriction
TP973A2167 Direct Acting 60 F to 90 F — 2 F to 10 F — Thermostat and cover
# 14004407-121
For one-pipe order an external
.005 in. restriction
TP973A2209 Direct Acting 60 F to 90 F — 2 F to 10 F — Thermostat and Satin
Chrome Cover
Tradeline Kit. For one-pipe
application- order an external .005
in. restriction
TP973A2223 Direct Acting 60 F to 90 F — 2 F to 10 F — Thermostat and beige
cover
Tradeline Kit. For one-pipe
application- order an external .005
in. restriction