The three-way valve is used with the Dual Room System. Using the Dual Room System, only one OptiClimate will be required to cool two rooms. To use the Dual Room System, you will need to order an additional temperature sensor. When used with the three-way valve, the night-time heating and dehumidifying function is cancelled.
250mm Three-way valve for OptiClimate 3500 and 6000
355 mm Three-way valve for OptiClimate 10000 and 15000