Wilo Z 15A Solar Hot Water Circulating Pump — Replaced by Wilo Star-Z NOVA related-resol-deltasol-bs4-solar-hot-water-sensor-controller-1 it is equipped with a

it is equipped with a potential-free extra-low voltage relay for backup heating demand and a V40 flowmeter input for heat quantity measurement

Control modes:

Senztek SolaStat ST Plus 1-2 Replacement Board

Solahart & Edwards VE direct LoLine solar water heaters made before 23/01/2007

When replacing the pump

Wilo Z 15A Solar Hot Water Circulating Pump — Replaced by Wilo Star-Z NOVA related-resol-deltasol-bs4-solar-hot-water-sensor-controller-1 it is equipped with aWilo Z 15A Hot Water Circulating Pump The Wilo Z 15A (also known as Wilo ZA 15) is no longer manufactured. The current replacement is the Wilo Star Z NOVA a direct swap for the Z 15A, Salmson SB 04 15 and Salmson NSB 04 15. The replacement impeller cartridge is identical across the Wilo Z 15A, Salmson SB 04 15 and Salmson NSB 04 15 all three pumps share the same cartridge. However, given the age of most systems still running these pumps, replacing the