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! Caution Sharp edges and coil surfaces are potential locations which may cause injury hazards. Avoid from being in contact with these places. Les bords coupants et les surfaces du refroidisseur tuulaire présentent ! Avertissement un risque de blessure. Mieux vaut éviter le contact avec ces endroits. ! Vorsicht Scharfe Kanten und Wärmetauscherflächen stellen eine Gefahrenquelle dar.
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INSTALLATION MANUAL This manual provides the procedures of installation to ensure a safe and good standard of operation for the chiller. Special adjustments may be necessary to suit local requirements. Before using the chiller, please read this instruction manual carefully and keep it for future reference. AIR COOLED CHILLER MODEL HEAT PUMP...
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INDEX - Outline And Dimensions page i-ii - Recommended Fuse And Cable Sizes page 6 - Electrical Wiring Diagram page iii - Water Piping System Setup page 7 - Isolator Diagram page iv - Refrigerant Circuit page 7 - Transportation page 1 - Special Precautions When Dealing With - Installation Location...
INSTALLATION LOCATION • Installation work should be done by the authorized dealer or qualified contractor. Never install the unit yourself. • Make sure there is sufficient space for airflow around the unit. The discharged air should be directed outside using a duct should the unit be installed in a plant room.
• Unit subjects to floor installation must be placed on a concrete slab. The slab must have thickness of 100mm and 50mm wider and longer than the footprint of the unit (Figure 4). Place the concrete slab a distant from building to prevent vibration and noise.
WATER PIPING AND FITTING • All water pipe must be adequately insulated to prevent capacity losses and condensation. • Install a 40 to 60-mesh strainer to ensure good water quality. • Water pipes recommended are black steel pipe and copper pipe. •...
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RECOMMENDED FUSE AND CABLE SIZES Cooling / Heat Pump Model 5AC020CR 5AC025CR 220 ~ 240V /1Ph /50Hz + N + ! Voltage Range ** Recommended Fuse * Power Supply Cable Size * Number of Conductor Interconnection Cable Size * IMPORTANT : * The figures shown in the table are for information purpose only. They should be checked and selected to comply with the local/national codes of regulations.
WATER PIPING SYSTEM SETUP • Fill up the water circuit after connecting all the pipes and equipment. Perform leak checks for all connections and joints. Do not start the unit when the system is leaking. • To optimize the capacity of the system, ensure that the system is free of air bubbles. The air trapped in the system would make the system unbalanced.
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CONTROL OPERATION GUIDE The unit is equipped with a microprocessor controller board. The microprocessor controller is provided to give temperature control for the system by accurately measuring and controlling the water entering and water leaving temperature. The tem- perature setting in the unit is preset in the factory. It is not recommended to change the setting unless necessary. A wired controller handset is connected to the microprocessor board.
SERVICING AND MAINTENANCE • Servicing Servicing or maintenance of these units must be carried out by experienced personnel with specific training in refrigeration. Repeatedly check the safety devices and continuous cycling of control components. These items must be analyzed and corrected before being reset.
TROUBLESHOOTING When any malfunction is occurred, immediately switch off the power supply to the unit, and contact the local dealer, if necessary. Some simple troubleshooting tips are given below : SYMPTOMS POSSIBLE CAUSES REMEDIAL ACTION 1. Compressor does • No power supply. •...
FAN SPEED CONTROLLER (OPTIONAL) Operation of the mini chillers without any fan speed control is limited to an ambient temperature of 17°C. With the fan speed control, the units are able to operate down to -5°C. The fan speed controller does not come as a standard item in the mini chiller units. It is field- installed.
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• In the event that there is any conflict in the interpretation of this manual and any translation of the same in any language, the English version of this manual shall prevail. • The manufacturer reserves the right to revise any of the specification and design contain herein at any time without prior notification.
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