Element to suit Chromagen Solar Hot water roof mount systems 350mm long 2300w/240v related-chromogen-tank-solar-hot-water-sensor-controller The replacement impeller cartridge is

The replacement impeller cartridge is identical across the Wilo Z 15A

Functions:

The replacement controller is the Resol DeltaSOl BS/4 - https://www

solarhotwaterparts

The Expansion Control Valve (ECV) is designed to relieve the increase in pressure caused by the water expansion during the normal heating cycle

Element to suit Chromagen Solar Hot water roof mount systems 350mm long 2300w/240v related-chromogen-tank-solar-hot-water-sensor-controller The replacement impeller cartridge isElement to suit Chromagen Solar Hot water roof mount systems 350mm long 2300w 240v Comes with high temperature seal. When replacing these elements care must be taken not to over tighten the the element. The top flange plate must be clean and clear of calcification. You are best to replace the top flange gasket at the same time to save getting leaks in your bolted flange. Have a look in the element section for the replacement flange gasket. This item