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Pneumatic Thermostats
M5418
MOTOR
DIFFUSER
CEILING
FILTER/
RESTRICTION ASSEMBLY
TP975
STAT
M
TP975 Pneumatic Diffuser Thermostat
One-pipe, single temperature, low-capacity pneumatic thermostat
used to provide proportional control of pneumatic valves and
mixing boxes in heating and air conditioning systems. It mounts in
a slot or light troffer diffuser or a return air grill.
• Two-way setpoint indicator for vertical or horizontal mounting.
• Detents in 1 F (0.5 C) increments for blind operation.
TP975 Typical Piping
Application Type: Single temperature, low capacity, pneumatic
thermostat
Dimensions, Approximate: 1 in. high x 2 1/2 in. wide x 1 1/8 in. deep
(25 mm high x 63 mm wide x 27 mm deep)
Airflow Usage: 0.011 scfm (5.2 mL/s)
Number of Pipes: 1
Mounting: Wall mount
Operating Temperature: 110 F maximum (43 C maximum)
Storage Temperature: 150 F maximum (66 C maximum)
Remote Bulb: No
Sensor Element: Bimetal
Maximum Operating Pressure: 30 psi (207 kPa)
Accessories:
14002913-001-.005 in. Blue Filter Restriction Assembly; Inlet: 1/4 in.,
Outlets: 1/4 in. and 5/32 in.; Order in Quantities of 10
14002913-004-External Restriction Assembly. 0.005 in. Restriction,
Blue Inlet 1/4 in; Outlet 5/32 in. and 5/32 in.
Setpoint
Temperature
Range Throttling Range
Product Number Action Setpoint
TP975A1009/U Direct Acting Single 67 F to 83 F 2 F to 10 F 1 C to 5 C Requires external 0.005 in. restrictor
Comments(F) (F) (C)
656 customer.honeywell.com 70-6910