CHS_LHS

30366461EN-08 14 LU-VE Group reserves the right to change specifications without prior notification. To replace the drain tray elements, use the same procedure as above, but elements are held in by clamps. To release the elements, remove the drain tray. The elements should then be taken out quite easily from under the clamps. Î It is most important when replacing tray elements to ensure that the clamps do not hold the elements down too tightly. The elements must be able to move back and forth in order to expand when heated. When connecting the elements, allowance should be made for the fact that they lengthen during operation (approx. 1 cm per meter). The connecting wires must be able to cope with this displacement without becoming taut. 5 Residual risks In the previous paragraphs many risks related to handling, installing and operating air cooler units have been pointed out. Below is an overview of the most relevant residual risks that must be accounted for. • Sharp edges & corners There is a substantial risk of injuries due to sharp edges and corners of coil and casing. Make sure to wear reliable protection during any handling of the unit and maintenance activities. • Drain tray Ensure the drain tray is empty before lowering or disassembling. The weight of any leftover water or ice could injure the operator if the drain tray fell open accidentally. • Side plates Removable side plates may only be opened by qualified staff. Ensure the side plates are properly secured after closing. • Fans Rotating fans can cause injuries to fingers. Never operate fans without the mounted protection grid and take care of loose clothing. Switch power off before any maintenance and wait at least 5 minutes to ensure safety. Even after power-off, the risk of electric shock persists from energized or faulty parts. • Electrics Power must be switched off before any work or maintenance on electrical parts of the unit. Secure the unit against unintentional switching on. • Burns or frostbite (Distributor) tubes can be extremely cold, whereas defrost heater elements and drain tray can get very hot. Use reliable protection. • Working fluids Working fluids might be toxic and/or flammable. These substances may only be handled by qualified staff while taking all necessary precautions and following any applicable regulations. • Fan vibrations Continuous fan vibrations can cause material failure and hence a risk of injury or damage due to loose parts. Therefore vibrations must be reduced to a minimum at all times.