Zehnder ComfoPipe Plus Dia 200mm Adaptor for ComfoAir 550 and Q450 or Q600 125mm a three way position switch

a three way position switch should be used to achieve this

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Zehnder ComfoPipe Plus Dia 200mm Adaptor for ComfoAir 550 and Q450 or Q600 125mm a three way position switchComfoPipe Plus 200mm, adaptor for insulated duct system to securely connect to the ComfoAir Q450 or Q600 to enable a connection to a straight length of insulated duct or 45 bend. The Zehnder ComfoPipe Plus 200 mm self seal insulated ducting is perfect for exceeding Building Regulations for insulation whilst minimising air leakage making it ideal for premium self build projects or PassivHaus developments. The lightweight and robust ductwork along with