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Siemens 193 HC Powerstar (Hesitation) Free Energy Band Heating/Cooling Pneumatic Room Thermostats

Powerstar (Hesitation) Free Energy Band Heating/Cooling Pneumatic Room Thermostats
193 HC

Providing proportional, single output, dual setpoint, 2-pipe pneumatic room temperature control, the 193 HC Powerstar (Hesitation) Free Energy Band Heating/Cooling Pneumatic Room Thermostat is designed to sequence a heating device or a cooling device. The hesitation feature keeps the output pressure constant through a 6°F (10.8°C) range (typical), causing a deadband.

• Dual setpoint dials available in Fahrenheit or Celsius scales
• Sensitive bimetal responds to temperature changes
• Integral, field adjustable limit stops
• Adjustable Free Energy Band
• Wall mounting plate for connection to a variety of rough-in terminal boxes included
• Test port for fast check of output pressure without removing the cover
• Field replaceable thermometer, setpoint dials, restrictors, and filters Options

Select a link under the "item" tab below to order.

Cat #OutputSetpointAir Output CapacityThermometer & Setpoint ScalesActionControl Action Type
193-211SingleDual (Heat and Cool)Low (No Relay)°FCool (DA)Heat Direct
193-212SingleDual (Heat and Cool)Low (No Relay)°FCool (RA)Heat Direct
193-231SingleDual (Heat and Cool)Low (No Relay)°CCool (DA)Heat Direct
193-232SingleDual (Heat and Cool)Low (No Relay)°CCool (RA)Heat Direct
193-215Dual (Heat and Cool)Low (No Relay)°FCool (DA)Heat Direct
193-216Dual (Heat and Cool)Low (No Relay)°FCool (RA)Heat Direct
193-235Dual (Heat and Cool)Low (No Relay)°CCool (DA)Heat Direct
193-236Dual (Heat and Cool)Low (No Relay)°CCool (RA)Heat Direct
193-213SingleDual (Heat and Cool)High (Integral Relay)°FCool (DA)Heat Reverse
193-214SingleDual (Heat and Cool)High (Integral Relay)°FCool (RA)Heat Reverse
193-233SingleDual (Heat and Cool)High (Integral Relay)°CCool (DA)Heat Reverse
193-234SingleDual (Heat and Cool)High (Integral Relay)°CCool (RA)Heat Reverse
193-217Dual (Heat and Cool)High (Integral Relay)°FCool (DA)Heat Reverse
193-218Dual (Heat and Cool)High (Integral Relay)°FCool (RA)Heat Reverse
193-237Dual (Heat and Cool)High (Integral Relay)°CCool (DA)Heat Reverse
193-238Dual (Heat and Cool)High (Integral Relay)°CCool (RA)Heat Reverse
193-219SingleDual (Heat and Cool)High (Integral Relay)°FHeat (DA) / Cool (DA)Hesitation
193-239SingleDual (Heat and Cool)High (Integral Relay)°FHeat (DA) / Cool (DA)Hesitation
193-220SingleDual (Heat and Cool)High (Integral Relay)°CHeat (RA) / Cool (RA)Hesitation
193-240SingleDual (Heat and Cool)High (Integral Relay)°CHeat (RA) / Cool (RA)Hesitation
Scale; Range:
Major (minor) Divisions: 45 to 85°F, 10(2)°F/
(7 to 30°C, 5(1)°C)
Factory Calibration:
“FEB” Output Pressure: 7.5 psi (52 kPa)
Temperature: 72°F (22°C)
Sensitivity: 2.5 psi/°F (31 kPa/°C)
Sensitivity Adjustment Range: 1 to 4 psi/°F
(12 to 50 kPa/°C)
Limit Stop, Field Adjustment Range: 55/75°F (13/24°C)
Storage: -10 to +140°F (-23 to +60°C)
Ambient Operating: 40 to 140°F (4 to 60°C)
Accuracy at Factory:
Calibration: ±2°F (±1.1°C)
Response: 0.1°F (0.06°C)
Supply Air Pressure:
Recommended: 25 psi (172 kPa)
Maximum: 30 psi (207 kPa)
Free Energy Band:
Output Pressure Adjustment: 1 to 15 psi (7 to 103 kPa)
Range: 0 to 40°F (0 to 20°C)
Nominal Air Capacity for Compressor Sizing: 40 scim (11 ml/s)
Nominal Air Capacity for Air Main Sizing: 40 scim (11 ml/s)
Nominal Chassis Air Capacity:
Supply: 150 scim (41 ml/s)
Exhaust: 150 scim (41 ml/s)
Supply/2-pipe Exhaust: 150 scim (41 ml/s) per side
Air Connections: 5/32" (4 mm) OD tubing
Dimensions (with cover): 2.16" W x 3.34" H x 1.59" D
(55 mm W x 85 mm H x 40 mm D)
Shipping Weights:
Thermostat Chassis and Wall Plate: 0.53 lb. (0.24 kg)
Plastic Cover: 0.07 lb. (0.04 kg)
Metal Cover (dual): 0.27 lb. (0.12 kg)

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