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Description
The thermostat antifreezing
SCOPE• In central airs, ventilation etc. if necessary to avoid fall of temperature below this level in:
• systems of airsupply;
• household and industrial zones
FUNCTIONS
• Protection against freezing in heat exchangers, tanks of hot water, central airs and refrigeration units
• Tracking of temperature drop is lower than a certain threshold
• Self-checking of damages of a capillary or battery
TECHNICAL CHARACTERISTICS
| Range of temperatures | - 18 °C... +13 °C |
| Mbar differential | 1,7 °C... 12 °C |
| Length of a kappilyar, m | 2 |
| Contacts | 1C/ABOUT |
DEVICE AND PRINCIPLE OF WORK
Measuring element - the capillary 2 or 6 m long filled with the low-boiling liquid which as a result of change of pressure under the influence of temperature influences the membrane interfaced to mechanical system which separates electric contacts Protection of the water heater against freezing on the basis of the measurement of air temperature proceeding in the unit behind the heater. At excess of the minimum set air temperature the signal on the controller which closes the air valve on an entrance to the device is given, switches off the fan and opens the water valve for the purpose of prevention of freezing of the heat carrier.
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The thermostat antifreezing
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