Model of a central heating system with radiators, circulating pump and four-way mixing valve Features - trainer on heating systems and plumbing - function of a central heating system - high level of relevance to practice due to use of commonly available commercial components Learning objectives/experiments - familiarisation with a central heating system and its components - hydronic balancing of radiators - function and operating behaviour of a circulating pump - function and operating behaviour of a heating controller - function and operating behaviour of a four-way mixing valve Specification [1] trainer for heating engineering [2] heating controller with feedback of the feed flow temperature [3] four-way mixing valve DN 20 [4] circulating pump [5] 7 rotameters [6] 4 plate heat exchangers as radiators [7] 5 bimetallic thermometers [8] 2 cold water connections DN 15 [9] 2 water connections for boiler DN 15 [10] 1 differential pressure overflow valve Technical data Pump - power consumption: 60W - max. flow rate: 60L/min - max. head: 4m Radiator - plate heat exchanger with 8 plates - capacity: 3kW Heating controller with feedback of the feed flow temperature - inputs: 2 temperature sensors Measuring ranges - temperature: 0...100°C - flow rate: -- 4x 0...400L/h -- 1x 0...1000L/h -- 2x 150...1600L/h 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase LxWxH: 1800x700x1780mm Weight: approx. 100kg
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