193-220 | P'STAR HES STAT H/C,RA/RA F | Siemens (OBSOLETE)

P'STAR HES STAT H/C,RA/RA F

Description

The TH 193 HC Hesitation Thermostats are proportional, single output, dual setpoint, two-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 changes to modulate control air through a flapper nozzle. As the heating load decreases due to internal heat gains, a deadband of control minimizes energy consumption while the setpoint changes from 72°F (22°C) heating mode to 78°F (26°C) cooling mode. Two setpoint dials allow adjustment of the deadband (4°F [2°C]), minimum). Air connections are made with 5/32-inch (4 mm) O.D. 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.
• Two separate, adjustable temperature setpoint indicating dials. 
• Two highly sensitive bimetal thermostatic elements.
• Fahrenheit or Celsius models.
• Field adjustable deadband output pressure.
• Individual field adjustable sensitivity with graduated scale.
• Integral field adjustable limit stops.
• Control pressure test port accessible without removing cover.
• Easily replaceable thermometer, setpoint dials, filters and restrictor plate.
• Covers available for concealed or exposed thermometers and for concealed, key, or exposed knob adjustment and setpoint indication. 
• Standard plastic thermostat covers provide Desert Beige or white finish.