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TROVIS 5400 TROVIS 5476 Heating and District Heating Controller

TROVIS 5400 TROVIS 5476 Heating and District Heating Controller
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TROVIS 5400 TROVIS 5476 Heating and District Heating Controller - 1

TROVIS 5400 Automation System TROVIS 5476 Heating and District Heating Controller On-off or three-step controller designed for wall or panel mounting (dimensions of front frame: 144 mm x 96 mm) Application Self-optimizing, weather-compensated flow temperature control in heating and domestic hot water systems incorporating two control loops ■ Incorporation of a solar collector loop possible ■ Variable return flow temperature limitation ■ Communication with a control system ■ Optional meter bus interface The TROVIS 5476 Heating and District Heating Controller is a modern weather-compensated controller which is capable of calculating the ideal heating characteristic from the measured room temperature. This means it is no longer necessary to set the heating characteristic manually. Furthermore, the controller can be used for optimizing the heating in periodically used buildings. It is provided with an adaptive algorithm for determining the building's thermal characteristic from the measured temperatures and calculating the optimum switch-on and switch-off times of the heating system. Special features: • Domestic hot water system from either the primary loop with three-step output or from the secondary loop • Differential temperature control for solar-supported heating of the hot water storage tank in five systems • Inputs for connection of maximum seven PTC and Pt 100 sensors, or seven Pt 1000 and Pt 100 sensors, or seven NTC and Pt 100 temperature sensors • Outdoor temperature can also be applied as current signal: 4(0) to 20 mA = -20 to 50 °C • Storage tank temperature sensor can be replaced by a storage tank thermostat • Variable return flow temperature limitation based on the outdoor temperature • Minimum and maximum flow temperature limitation • 365-day clock with three time programs and automatic summertime/wintertime changeover • Optional connection of a room panel with set point correction option and mode selector switch • Connection to Modbus is possible • RS-485 interface for communication with a four-wire bus system, or RS-232 interface for communication with a modem • Option: Meter bus interface for communication with a maximum of three calorimeters Version TROVIS 5476 (Fig. 1) ■ Heating and district heating controller with RS-232 or RS-485 interface Option: Meter bus interface ^ troVis* Electronics from SAMSON 1 LCD 2 Operator keys 3 Mode selector switch 4 Set point adjuster 5 Connecting socket for memory module

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TROVIS 5400 TROVIS 5476 Heating and District Heating Controller - 2

Inputs and outputs (Fig. 3) Input and output assignments of the controller are determined by the system code number (see examples in Figs. 8 and 9). The heating and district heating controller has two fixed sensor inputs for flow and outdoor temperature measurement. In addition, it features 8 configurable inputs which can be configured for both, maximum 7 temperature sensors (PTC and Pt100 or Pt 100 and Pt 1000 or NTC and Pt 100) and binary inputs. A potentiometer, 1 to 2 kΩ or a room panel (Type 5244/PTC or Type 5257-5/Pt 1000) can be connected to one of these inputs. A calorimeter output...

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TROVIS 5400 TROVIS 5476 Heating and District Heating Controller - 3

Optimizing switch-on and switch-off times (Figs. 6 and 7) The heating and district heating controller implements a program for optimizing the switch-on and switch-off times of the heating system in periodically used buildings. Energy requirement depends on the period of energy supply, the difference between room and outdoor temperature, the buildings thermal characteristic, and the properties of the heating of the building. The controller determines the buildings thermal characteristic and dynamic behavior of the heating system from the succession of room and outdoor temperature measurement...

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TROVIS 5400 TROVIS 5476 Heating and District Heating Controller - 4

Electrical connection and mounting The controller consists of a controller housing containing the electronic components and a separate terminal board used for the electric connection. Two wires of max. 1.5 mm2 can be connected to each terminal. The sensor connection lines must be installed separated from the output relay lines. For wall mounting, the terminal board must be fastened to the wall using screws. After having made all electrical connections, the controller housing must be plugged onto the terminal board and secured with one screw. For panel mounting, two mounting straps which can...

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TROVIS 5400 TROVIS 5476 Heating and District Heating Controller - 5

free for 4(0) to 20 mA connect in parallel 50 Ω Option Type 5244 Type 5257-5 Changeover valve Fig. 8 ⋅ Terminal assignment for system code no. 2 free for 4(0) to 20 mA connect in parallel 50 Ω Option Type 5244 Type 5257-5 Fig. 9 ⋅ Terminal assignment for system code no. 5 Outdoor temperature sensor Binary input Collector sensor for solar loop Solar circulating pump Ground input signals Power supply Room temperature sensor Control loop Return flow temperature sensor Storage sensor Storage charging pump Heat exchanger charging pump Hot water circuit sensor Heating circulation pump Flow...

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TROVIS 5400 TROVIS 5476 Heating and District Heating Controller - 6

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

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