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. There are two types of three-way valve available:
• 3-wegklep 250mm for OptiClimate 3500 & 6000
• 3-wegklep 355mm for OptiClimate 10000 & 15000