Servitec S

Servitec
Vacuum spray-tube degassing system for system and make-up water degassing in sealed heating water and cooling circuits, configured as a fully automatic multi-function unit with “auto-start” function and automatic hydraulic compensation of the degassing process as well as control and monitoring of the make-up water function.

Suitable for the media water and water/glycol mixtures up to a mixing ratio of 50/50%.

Functional unit comprising hydraulic part designed for wall mounting and electronic, ergonomically arranged Control Smart controller with CE marking.

Degassing takes place within the hydraulic part using a diaphragm pump in conjunction with a vertically arranged brass vacuum spray tube. This is equipped with a vacuum spray nozzle, dipstick-tube degassing unit and pressure monitoring. To protect it against dirt, the unit as a whole is located in a housing made from expanded polypropylene with an opening maintenance cover.

The Control Smart controller is integrated into a robust plastic housing, which houses both the power and communication electronics and the control panel with a dirt-resistant membrane keyboard. Bluetooth is integrated as standard as a communication interface. The controller features a fully automatic microprocessor controller with a timing function, a differentiated error and parameter memory, an LED display for operating modes and general error messages, and visualisation of the controller statuses for system pressure and all relevant operating and fault messages via the Control Smart app using Bluetooth communication.

Communication electronics comprising:

• RS485 port (galvanically isolated) for the connection of optional communication components
• Including Modbus RTU protocol
• Floating output for forwarding of the group message
• Digital input for signal processing of a contact water meter
• Analogue input for measuring the conductivity

• Input for makeup functional request via external signal

Control Smart utilises a plug-and-play function for automatic system pressure detection and enables convenient wireless operation via an app for smartphones and tablets running the iOS and Android operating systems, facilitating simple commissioning and visualisation of system operation. The following functions are available:

• automatic setting of the time and date
• setting and adjustment of the minimum operating pressure p0
• Switch-on times for continuous and interval degassing can be freely defined and entered by the user
• Free configuration of weekday and time for the interval degassing operating mode, including a summer function
• Status, warning and error displays for system pressure and operating status, including diagnostic information and recommendations for action
• Automatic software updates

Safety- and function-related parameters are protected against unauthorised access.

Control unit completely assembled and wired ready for connection according to VDE regulations, mains power cable and mains plug, system connections by means of integrated shut-off valves.

Vacuum spray degassing of the content, filling and make-up water in self-optimising operation with cycles for continuous, interval and make-up degassing. Controlled make-up via reliable two-way motorised ball valve. Actuation takes place via an integrated system pressure interpretation unit or an external 230 V signal (e.g. a pressurisation station) with automatic interruption and fault messaging upon exceeding of the running time and/or the number of cycles. Alternatively, make-up can be performed from an open system separator vessel. Evaluation option provided by a contact water meter including optional possible capacity monitoring of ion exchangers in the make-up pipe. Documentation and control of the entire system in respect of the above mentioned parameters.