Continuous-action ventilation controller designed for wall or panel mounting (front frame dimensions 144 mm x 96 mm) Application Ranging from simple control of ventilation to cascade control of a temperature and humidity control loop including heating coil, heat recovery unit, cooling coil and humidifier The TROVIS 5477 Ventilation Controller can be used in ten different types of systems (see Table "System functions and application"). Using the TROVIS 5477 Ventilation Controller, room ventilation systems can be operated with either the control of the supply air, exhaust air or room air. Cascade control of either the exhaust air or the room air is also selectable. In these modes, the heating coil can optionally be operated with a heat recovery unit, a cooling coil, or both a heat recovery unit and a cooling coil in sequence. Separate temperature control of mixed air is possible for systems provided with a mixed air chamber. In addition to temperature control, humidity control is also possible by an additional output for connecting a humidifier. The TROVIS 5477 Ventilation Controller can be configured and parameterized via PC. The data entered is subsequently downloaded to the controller by means of a special memory module. Special features • Analog input 0 to 10 V for air quality sensor • Two-speed fans with separate time schedule, control also possible via the air quality, room temperature or humidity • Variable air volume control can be configured • Analog output 0 to 10 V for requesting the externally required signal • Return air flow temperature of the heating coil can be limited • Simple entry of configuration and parameter data via symbols (pictograms) • Code number protects against unauthorized alteration of data • Connection of a memory module for PC • Connection to Modbus is possible • RS 485 interface (for communication via a four-wire bus) or RS 232 for communication via a modem TROVlS Electronics from SAMSON Fig. 1 ■ TROVIS 5477 Ventilation Controller

Inputs and outputs The TROVIS 5477 Ventilation Controller is equipped with 12 inputs which can be optionally configured as sensor inputs or as binary inputs. The required inputs are determined in accordance with the system code number; e.g., three binary inputs for the functions "feedback of fan operation", "system on/off" and "frost protection". Pt 100 and PTC or Pt 100 and Pt 1000 sensors can be connected. Two inputs are also suitable for remote adjustment. Inputs not assigned to a certain system code number can, for example, optionally be used to connect temperature sensors which are prompted...

1 Avoid areas with poor ventilation to prevent heat from building up Electrical connection and assembly The ventilation controller consists of an electronics section which can be found in the controller case and a separate terminal board used for connecting the electrical leads. Two wires with a maximum cross section of 1.5 mm2 can be connected to each terminal. Sensor leads are to be wired separately from the lines of the output relay. With the wall-mounted version, the terminal section is screwed to the wall. After connecting the electrical leads, the controller case is inserted on the terminal...

Connection of the optional Type 5257-6 Remote Control Unit Analog output Analog input Binary output Binary input Sensor or potentiometer input Ground SAMSON AG ⋅ MESS- UND REGELTECHNIK Weismüllerstraße 3 ⋅ 60314 Frankfurt am Main ⋅ Germany Phone: +49 69 4009-0 ⋅ Fax: +49 69 4009-1507 Internet: http://www.samson.de Fan stage 1 Fan stage 2 Room temperature Temperature set point