Heat Recovery devices are air-conditioning devices used in many living spaces such as shopping malls, hospitals, offices and hotels to take in fresh air and to expel polluted air from inside. The most important feature of Heat Recovery devices is that they provide energy efficiency by transferring the heat energy above the indoor air to the fresh air coming from outside. HRV-C6S Heat Recovery Controllers are designed to automatically or manually control the fans of heat recovery devices with independent single-stage permanent condenser aspirator and ventilator fan motors by separating them into 3 stages. Thanks to the easy-to-use, Turkish menus, the user can easily adapt to the device. The system can continue from where it left off during energy fluctuations.