RVD120-A district heating controller, Siemens, S55370-C109

Control of district heat substations, space heating and d.h.w. heating. Optimized for low return temperatures in district heating networks. - 3 ready programmed and preselected plant types - Straightforward, easy-to-understand operation - Analog adjustment of room temperature setpoint, other adjustments with operating lines - Display of time of day, time program, setpoints, actual values, limitations, errors, etc. - Optional remote operation via room unit - 2 independent switching programs each with 3 occupancy times per day - Holiday function (via room unit) - DRT limitation for the reduction of peak loads - Maximum limitation of the return temperature on the primary side - Minimum and maximum limitation of the flow temperature - Automatic summer / winter changeover - Automatic ECO function - Pump protection - Legionella function - Frost protection function - Automatic monitoring of sensors with alarm indication - Relay and sensor tests, manual operation - Locking function for district heat parameters - Communication via Modbus - Display with background lighting Plant-specific - 1 pump heating circuit, control of the flow temperature, optionally weather-compensated / weather- and room temperature-compensated / room temperature-compensated - D.h.w. heating: - Storage system with integrated heat exchanger and 1 storage tank sensor - Charging pump

Manufacturer code: S55370-C109

Code: S55370-C109

Manufacturer: SIEMENS

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Specification

Code: S55370-C109

Description

Control of district heat substations, space heating and d.h.w. heating. Optimized for low return temperatures in district heating networks. - 3 ready programmed and preselected plant types - Straightforward, easy-to-understand operation - Analog adjustment of room temperature setpoint, other adjustments with operating lines - Display of time of day, time program, setpoints, actual values, limitations, errors, etc. - Optional remote operation via room unit - 2 independent switching programs each with 3 occupancy times per day - Holiday function (via room unit) - DRT limitation for the reduction of peak loads - Maximum limitation of the return temperature on the primary side - Minimum and maximum limitation of the flow temperature - Automatic summer / winter changeover - Automatic ECO function - Pump protection - Legionella function - Frost protection function - Automatic monitoring of sensors with alarm indication - Relay and sensor tests, manual operation - Locking function for district heat parameters - Communication via Modbus - Display with background lighting Plant-specific - 1 pump heating circuit, control of the flow temperature, optionally weather-compensated / weather- and room temperature-compensated / room temperature-compensated - D.h.w. heating: - Storage system with integrated heat exchanger and 1 storage tank sensor - Charging pump

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