HONEYWELL COMMERCIAL THERMOSTATS
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HONEYWELL manufactures a wide range of 12.7mm (0.5 inch) commercial snap-action thermostats for possible use in a wide range of small and major appliances, office copy machines, medical equipment, heat detectors, HVAC equipments etc. DEFINITION OF TERMS• Automatic Reset: A type of thermostat that will automatically reset at a specific temperature (i.e. a thermostat operates at65,5 oC [150 oF] and resets at 48,89 oC [120 oF]).• Bimetal: Two dissimilar metals bonded together to form the material for manufacturing thermally-sensitive discs which actuatethe thermostat.• Close on Rise (COR): Refers to operation of the contacts. When the temperature rises to its set point, the contacts close ormake contact and complete the circuit.• Contact Resistance: The value of resistance measured between the terminals.• Dielectric Strength: The value of insulation between two electrically conducting parts. It may be tested by the application of apredetermined overvoltage for a specified time.• Differential: The temperature difference between the operate and reset set points, also known as operate and reset.- Nominal: The temperature difference between nominal set points regardless of tolerance.- Maximum: Maximum number of degrees between actual opening and closing set points.- Minimum: Minimum number of degrees between actual opening and closing set points.• Exposure Temperature: Thermal environment of a device during application operation.• FLA (Full Load Amps): Current taken from the line by the motor when the motor is yielding the rated hp at the rated voltageand frequency.• Life Cycles: The endurance rating of the thermostat expressed in number of operations with stated electrical load applied.Temperature limit application = open on rise.• LRA (Locked Rotor Amps): The amount of current the motor can be expected to draw under starting conditions when fullvoltage is applied, also known as starting inrush current.• Manual Reset: A bimetal thermostat with a reset button that must be pressed to reset the contacts.• Open on Rise (OOR): Refers to the operation of contacts. When the temperature rises to its set point the contacts open,terminating the circuit.• Overmold: Encapsulation with an insulating material.• Phenolic: Thermoset plastic used for the insulating body of the thermostat.• Set Point: The nominal temperature at which the thermostat operates.• SPST (Single Pole/Single Throw): A switch with one current path which can be either open or closed.• Tolerance: The allowable range above and below the set point temperature.• Operate: Change of state when the thermostat reaches its set point.• Reset: Change of state when the thermostat returns to its original condition prior to operation.NOTES• Standard Temperature Characteristics Tables:- Temperatures: Please consult applications engineering for temperature ranges, tolerances and differentials not noted.The operating temperature ranges include tolerances.- Tolerances: The ± tolerances given have been established after review of many thermostat applications. Attempts shouldbe made to establish the widest acceptable tolerance possible.• UL and CSA Approvals: 12,7 mm [0.5 in] thermostats are available with multiple agency approval for incorporation intoequipment.• Fan control applications: Require thermostat set points to be derated by 20 °C from the equivalent temperature limitapplication. They also close on rise.• Dimensions: Are for reference only and are given in mm [in].
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Our chillers provide the ideal cooling solution for industrial applications. Even under harsh conditions, our high quality chillers guarantee operational efficiency and energy savings. We design air cooled as well as water cooled chilling system depending upon the application. The water chilling plants developed by us range from 1Tr to 10Tr linked with the chilled water storage tank and other utilities providing continuous chilled outlet for the large capacity water dispenser systems. Power efficient Low water waste Quick chilling Low Maintenance
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