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Description
The TH 192 DN & DNV thermostats are proportional single output, dual set point, 2-pipe or 3-pipe (high air capacity) sensor controllers. Each thermostat includes a wall mounting plate for installation in a variety of rough-in terminal boxes. Sensitive bimetals respond to temperature change to modulate control air through a flapper nozzle. Two set point dials are provided. When the supply air pressure changes from 18 to 25 psi (124 to 172 kPa), the thermostat automatically switches from the day to the night set point respectively. Air connections are made with 5/32" (4 mm) OD plastic tubing, directly to the thermostat chassis for retrofit applications or with plug-in adapters (provided with the TH 192 rough-in terminal box or optional accessories) which slide into the wall mounting plate.

Features:
  • Direct and reverse acting for day and night modes (DN models)
  • Two separate adjustable temperature set point indicating dials
  • Two highly sensitive bimetal thermostatic elements
  • Operating mode automatically switches from day to night on change of main air supply pressure
  • Manual override selector ensures off-hour occupancy comfort
  • Single screw adjustment for changeover switch set point
  • Individual field adjustable sensitivity with graduated scale for each mode
  • Integral field adjustable limit stops
  • Control pressure test port accessible without removing cover
  • Easily replaceable thermometer, set point dials, filters, and restrictor plate
  • Fahrenheit or Celsius set point dials
  • Covers available for concealed or exposed thermometers and for either concealed, key, or exposed knob adjustment and set point adjustment
  • Standard plastic thermostat covers provide desert beige or white finish
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Manuals (1)
Specs
Product Type:
Thermostat
Action:
Direct Acting
Operating Temp Range:
45° - 85°F
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