1. Engineer Training Cooler TJ8300 / TJ8500 Cooler

2. Engineer Training Cooler TJ8300 / TJ8500 Confidential 2 Introduction

3. Engineer Training Cooler TJ8300 / TJ8500 Confidential 3 Location Located inside the collecting table

4. Engineer Training Cooler TJ8300 / TJ8500 Confidential 4 General Description  The cooler is located inside the collecting table.  The cooler’s function is to cool the water that flows through the UV lamp head.  The ambient temperature should be 15°C - 35°C.  The water circulates through the UV lamp head and the cooler.  The water flow pressure is 2.5 - 3.5 bar.  Within the cooler, the distilled water flows from the water container, through the radiator, which cools it, and then is pumped towards the UV lamp head.

5. Engineer Training Cooler TJ8300 / TJ8500 Confidential 5 General description (Cont.)  The fan in the cooler removes the heat.  The water temperature must be below 70°C. Otherwise, the lamp will be turned off.

6. Engineer Training Cooler TJ8300 / TJ8500 Confidential 6 Cooler Unit Components The cooler unit includes:  Water container  Two Radiators  Water pump  Water pipes  Temperature sensor  Water filter  Cooler panel

7. Engineer Training Cooler TJ8300 / TJ8500 Confidential 7 Water Container Water level sensor50 lit water container

8. Engineer Training Cooler TJ8300 / TJ8500 Confidential 8 Water Container (Cont.)  The water container contains 50 liters of distilled water with 0.5% of corrosion inhibitor and 1 unit of microtreat.  The water circulates through the cooler and the UV lamp head.  The purpose of the water (float) sensor is to alert the system if the water level is low.  If the water reaches the low (threshold) level, the system turns off the lamp power. Corrosion inhibitor

9. Engineer Training Cooler TJ8300 / TJ8500 Confidential 9 Radiators  The purpose of the radiators is to cool down the warm water that returns from the UV lamp head.  The fan removes the heat from the cooler unit.

10. Engineer Training Cooler TJ8300 / TJ8500 Confidential 10 Water Pump Thermal Switch Water Pump

11. Engineer Training Cooler TJ8300 / TJ8500 Confidential 11 Water Pump (Cont.)  The pump circulates the water through the UV lamp head and the container, via the two radiators.  The thermal switch is set to 70°C and protects the system against high temperatures. If the temperature of the inlet water (into the radiators) reaches 70°C, the system turns off the UV lamp.  The water flow pressure is 2.5 - 3.5 bar.

12. Engineer Training Cooler TJ8300 / TJ8500 Confidential 12 Water Tubes Two water tubes are connected between the UV lamp head and the cooler unit. Red mark: The tube carries heated water from the UV lamp head to the cooler unit. Blue mark: The tube carries cold water from the cooler unit to the UV lamp head.

13. Engineer Training Cooler TJ8300 / TJ8500 Confidential 13 Temperature Sensor The temperature sensor measures the temperature of the output water that flows to the UV lamp head. Temperature Sensor

14. Engineer Training Cooler TJ8300 / TJ8500 Confidential 14 Water Filter The water filter prevents dirt from entering into the radiators. Water Filter

15. Engineer Training Cooler TJ8300 / TJ8500 Confidential 15 Cooler Panel Water Level Water level Output water temperature Pump pressure