HVAC Note LCD-Thermostat

HVAC touch lcd thermostat thermostat di hvac touch lcd thermostat home thermostat General TheBYC07 series are “Touch Screen” digital thermostats are designed for application of 3-speed fan and valves in a fan coil system. It is a microprocessor-base controller with digital LCD display. The controller is used to control room temperature in industrial, commercial and residential environment via controlling electric valve or damper. The controller is provided with on/off control output.The fan speed can be set to automatic or manual three speed mode.Application Temperature control for variable air volume (VAV) with reheat boxTemperature control for VAV with reheat boxConstant temperature controlOffice,hotel and residential BuildingsFeatures Digital display of sensing temperature and user selected temperature setting on demandSlim design direct installation on 86mm BoxOutput limited for over load protectionModel available for built-in or remote sensor (RS) functionRemote control (RC) output for interlocking on / off control applicationNon-volatile memory (EEPROM) retains user settings during power lossLarge LCD display with green backlight °F or °C display unit Adjustable maximum and minimum setpoint limits Control off output when system switch at “OFF” positionSpecifications Power Supply 75-250VAC(24± 10% Optional), 50/60 Hz Setpoint Range 5 to 35°C (programmable) Display Range 0 to 50.0°C Display LCD display Sensor NTC B=3380 10k @25degreesCelsius Setting Unit 0.5°C / step Indication Accuracy 0.1°C Electrical Rating 0.8 A run, 5 A inrush up to 250Vac Dimension 86 x 86 x 38mm ( H x W x D ) Weight 145 g/piece Inner Box Size 100 x 93x 52 mm Typical Application Control Performance Proportional control Output Signal for Cooling Control Floating, 0-10Vdc, 2-10Vdc Output Signal for Heating Control 0-10Vdc or 2-10Vdc Maximum Output Load 5mA for 0-10Vdc or 2-10Vdc Remote Control (RC) Output SPST normally open (N.O.) dry contact output Norms and Standards Low voltage directive 73/23/EEC and 93/68/EEC Thermostat BYC07Ndiagram Thermostat BYC07XYdiagram