Item Description

The simulated heating system has two boilers connected in parallel. The feed flow temperature is controlled through the outside temperature using 3-way mixing valves. There are two heating lines with simulated heaters and different actuators: 3-way mixing valves and pumps. An additional 3-way mixing valve is the actuator for water heating. The simulated air conditioning system with air heater, air cooler and fans can be operated in outer air and re-circulated operation via flaps with a motor as actuator. Both process schematics contain potentiometers simulating e.g. a change in the outside, room or feed flow temperature. Bar-graph displays and lamps indicate the operating states of the actuators. In addition to manual configuration and parameterization via buttons, the PLC can also be adjusted for the respective control task using the configuration software supplied. It further enables the monitoring of safety devices such as a low water cut-off in the boiler. The simulation of faults, such as triggering the differential pressure switch at the fan, can be carried out via buttons. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.