If there is no water flow in the reactor, the equipment cannot run for more than 5 minutes! Avoid current damage! Comply with electrical equipment safety regulations! For any maintenance operation or any operation on the device, turn off the device and disconnect it from the import box! Protect the wire from contact with water to prevent short circuit! Replacement of UV lights and maintenance can only be done by authorized companies! Quartz sleeve and UV lamp are fragile and handle carefully. Otherwise, they may suffer damage and cause harm. If there is any damage to the quartz casing or ultraviolet lamp, the device must be rotated. FF and the quartz casing or lamp must be replaced. Ultraviolet lamps contain mercury, which is toxic! 3.Place and install The installation of the device shall be carried out by a professional company. Setup, maintenance and repair can only be carried out by the authorized person. 4.Operation of ultraviolet system If the device or its wiring is defective, the equipment shall not be put into use! Before you turn on the UV system, make sure the combined circuit breaker (FI 1) in UVEL.box RS 01 is on. By switching the main power switch (1) from the "0" position to the "1" position, the device can be turned on and the power supply on the LED (3) will be turned on. Put the UV system Under normal operating conditions, the UV system automatically turns on the filter signal when it receives the filter signal (the operation of the filter pump). For this mode, the control switch (4) remains in the "on" position. To turn on the UV system in manual mode, follow these instructions: