Air handling unit temperature control system is composed of a proportional integral TC-1 temperature controller,wind pipe temperature sensor TE-1, the electric control valve TV-1 and the integrated control box of WSK 02.TC-1 controller is the function of the sensor TE-1 detection temperature and set temperature controller iscompared, and according to the result of the comparison, the proportion, integral calculation, to control TV-1 electric valve, so that the air temperature in the temperature range required. With the fan start and stop function, when the fan is started, the electric air valve is opened, when the fan is stopped, the electric air valve,electric water valve with closed. When the filter is blocked, the pressure switch is switched to DPS-1 signal alarm device.

Differential pressure bypass control system is composed of a differential pressure controller PC-1 and electric control valve TV-1. Controller of PC-1 detection is the role of supply and return water pressure difference andthe set value

For comparison, and according to the results of TV-1 electric valve to control the opening, thus a constant watersupply and return water pressure system.

Differential pressure bypass electric control valve can also be linked with air conditioning air conditioning unit,when the power is cut off, and close the electric control valve differential pressure bypass.

The temperature control system of heat exchanger is composed of a proportional integral TC temperature controller, water temperature sensor TE -1 -1 and TV -1 integrated electric control valve. Effect of TC controller-1 is to TE -1 the detected temperature sensor with temperature controller set comparison, and according to the result of the comparison through the proportion, integral calculation, making the electric valve TV -1, so that theheat exchanger outlet temperature is maintained at the temperature range required.

Electric control valve and hot water circulating pump linkage, when the pump power is cut off, and the electric control valve TV -1.

Temperature control is applied to a typical domestic hot water and heating water system

System uses the DDC control to control the air conditioning unit, consisting of air valve, filter, cooler, heater,heating coil fan. The components of the control system is composed of air temperature and humidity transmitter, return air temperature transmission, air temperature and humidity transmitter, antifreeze switch,pressure switch, air valve actuator, electric control valve.

Central air conditioning billing time and energy saving control system, is the development and application of computer monitoring and control system based on the combination of domestic and foreign technology,research and development of system software, according to the characteristics of the management of the property, the system of central air conditioning and heating engineering system of measurement, data acquisition, calculation and analysis, and the operation of the equipment efficient energy management, ensuresystem energy use, to extend the system lifetime, to seek the minimum cost of energy use, or Home Furnishingprovide office environment more comfortable, mainly for fan coil measurement point number of buildings.

The system is widely used in residential, commercial office, hotel and hospital comprehensive building automation system.

Network type fan coil central control system, to solve the blind area of building automation system on management for a long time, can be achieved by the control center (software) of each building, each floor, eachfan coil of the operating state of the remote centralized monitoring and control; in hotels, office buildings andoffice buildings, the the host computer can realize remote start / stop the fan coil unit, set the room temperature,forced shutdown, lock screen, thus the greatest degree of saving energy consumption, building energy conservation.

System uses the DDC control to control the air conditioning unit, consisting of air valve, filter, cooler, heater,heating coil fan. The components of the control system is composed of air temperature and humidity transmitter, temperature transmitter, return air temperature and humidity transmitter, antifreeze switch, pressure switch, air valve actuator, electric control valve.