Grundfos Solar Water Circulation PumpThe 15-20 CIL 2 Grundfos Solar Water Circulation Pump (including unions) 240V fitted with power lead for easy installation Grundfos housing (Composite In- Line Version 2) is available in composite material, made by injection moulding, using collapsible core technology.The Grundfos Solar Water Circulation Pump is very efficient with low power usage characteristics and can be used with open or closed loop solar circuits. Solar transfer fluids can be water or glycol.Comes complete with a three speed asynchronous circulator, with low energy usage; it is certified “B-class technology”.Grundfos Solar 15-20 with DZR body SpecificationMinimum / Maximum temperatures: – 25 to 100 Deg CMaximum “peak” temperature 140 Deg CPressure class PN10Protection class X 4DInsulation class HResistant to condense water at a low temperature and a cold start protected.Suitable for use in open loop and closed loop solar hot water systemsThe Grundfos Solar 15-20 range is robust, endurable and temperature resistant. It is suitable for water/glycol mixtures and coolants without mineral oils. The pump with composite housing is specific to be used on solar applications and the pump can be used in both open and closed systems.What does the Solar Pump do?The solar hot water circulation pump operates intermittently throughout the day to maintain maximum hot water output and minimise energy consumption, it is controlled by the solar controller during an average year the pump costs approximately $10-$15 per year to run.
