Wilo Star ZRS 15/6-3 Compatible_Solar Power Solar Graphic colour display with operation

Graphic colour display with operation via one button manual operation level

The Panel Sensor goes to the top of the collector panel

+24 V DC power supply

Salmson pumps are the older models that were widely used in solar hot water systems

Wilo Star ZRS 15/6-3 Compatible_Solar Power Solar Graphic colour display with operationWilo Star ZRS 15 6 3 What to consider when choosing a solar hot water circulating pump based on the pumps head: The head rating on a pump is a static rating, and applies to the maximum head in an open loop system, such as pumping up to a roof tank. In the case of circulation through a roof panel and back down a return line, once the system is primed the weight of water falling down the return line is equal to the weight of water in the feed line, and