Frost protection thermostat Industrie Technik
The new antifreeze thermostat has been realized in polymeric element. Main features are solidity, sturdiness typical for elec- tromechanical units, the unit is quite light, indestructible, it can’t be attacked by rust and is protected against error commuta- tions due to vibration present on plant. The general standard protection IP65 is suitable for quite all applications.
USAGE
The new thermostat TFxx is a security unit, his aim is to control temperature of heating and cooling batteries, in air conditioning system, inside air pipe ventilation and in all applications in which it is necessary to avoid freeze formation.The switching contact (SPDT) of 15(8) A allows usage in different functions such as:
- driving a ventilator
- driving a damper
- opening or closing a valve or heating or cooling circuit
- driving an electric heater
- driving a pump for heating or cooling circuit
- switching off cooling system or humidifier
- indicating an alarm state by an acoustic or visual device
Range: -10..+10°C or +14..+50°F
Contact type: SPDT microswitch (fig. 1)
Switch capacity: 15 (8) A 24..250Vac
Accuracy: ± 1 K
Protection: Class I, IP 65
Housing temperature: max. +55°C 10...90% r.h. (without condensing)
Max. bulb temp.: +150°C
Storage: -30..+60°C < 95% r.h.
Housing: Base in ABS, cover in transparent PC
Dimensions: 140x62x65 mm (cable gland included)
Weight: 320 g
The thermostat is available with 3 different sensible elements that allow the use in different applications. The version with 1,8 m capillary lenght has a bulb that allows the use of a 120 mm pocket available as accessory in brass or inox. The versions with 3 and 6 m can be used in air pipe or batteries of exchanger.The capillary must be applied uniformly on the surface to control (Fig.
2). This surface must not be folded with a radius of curvature lower than 2 cm and there must not be any bottleneck. So the use with DBZ-05 mounting bracket is not recommended. In addition avoid to put the capillary across iron plate wall without any protection.The room temperature around the unit must never be below the setpoint temperature.