Thermostats
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Reference
70-6925 11
TP971 Pneumatic Day/Night Thermostat
Pneumatic thermostat with night setback 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 two-pipe pneumatic thermostats.
• Durable TP970 series thermostat Pilot operated for high capacity.
• Direct Acting (DA) and Reverse Acting (RA) models are available.
• Three-pipe thermostats are available for unit ventilator applications
where the outdoor damper must operate when the thermostat is
manually set to day operation.
• Adapter plate in thermostat kits covers existing thermostat
watermark.
• Backplate has molded air connections-no separate fittings needed.
• Universal Locking cover with satin chrome finish and horizontal,
vertical, or blank window options-other covers available.
TP971 Typical Piping
Application Type: Wall Thermostat, Day/Night operation
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 maximum
Storage Temperature: 150 F maximum (66 C maximum)
Remote Bulb: No
Setpoint: Day/Night
Sensor Element: Bimetal
Maximum Operating Pressure: 25 psi (170 kPa)
Accessories:
14002362-001 Duct Sampling Chamber
14002430-001 Thermostat Guard
14004439-001 Setpoint Extension
14004447-003 Setpoint Cam Assembly for TP971A, C, D;
TP972A1168, A2168, A2176
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
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
14002374-004 Restrictor Block Assembly,.005 in., For TP970A-D;
TP971A-E except C; TP972A; TP973A-B; TP9600 family; HP970A-B;
and HP972B
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
14004460-001 Nozzle, Throttling Plate and Bimetal Assembly, DA, Left
side
14004460-002 Nozzle, Throttling plate and Bimetal Assembly, reverse
acting, left side
TP971A OR
TP9610A
DAY
13 PSI
(90 kPa)
NITE
18 PSI
(124 kPa)
M B
N.O.
M
HOT WATER
OR STEAM
SUPPLY
C3540-1
Product
Number Action
Number
of Pipes
Setpoint Temperature
Range Changeover
Throttling
Range
Includes Comments**(F) (C) (psi) (kPa) (F) (C)
TP971A2003 Direct
Acting
Heating,
two temp.
2 Day: 60 F to
90 F, Night: 50
F to 80 F
—Day 13 psi,
Night 18 psi
Day 90 kPa,
Night 124
kPa
2 F to
10 F
—Order Cover
Separately
—
TP971A2011 Direct
Acting
Heating,
two temp.
2 — Day: 15 C to
30 C, Night:
10 C to 27 C
Day 13 psi,
Night 18 psi
Day 90 kPa,
Night 124
kPa
—1 C to
5 C
Order Cover
Separately
—
TP971A2029 Direct
Acting
Heating,
two temp.
2 Day: 60 F to
90 F, Night: 50
F to 80 F
—Day 16 psi,
Night 21 psi
Day 110 kPa,
Night 144
kPa
2 F to
10 F
—Order Cover
Separately
—
TP971A2052 Direct
Acting
Heating,
two temp.
2 — Day: 15 C to
30 C, Night:
10 C to 27 C
Day 16 psi,
Night 21 psi
Day 110 kPa,
144 kPa
—1 C to
5 C
Order Cover
Separately
—
TP971A2086 Direct
Acting
Heating,
two temp.
2 Day: 60 F to
90 F, Night: 50
F to 80 F
—Day 20 psi,
Night 25 psi
Day 137 kPa,
Night 172
kPa
2 F to
10 F
—Order Cover
Separately
—
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