User manual HYFRA PEDIA CHILLY 25 OPERATING INSTRUCTIONS

[. . . ] Original spare parts and accessories accepted by the manufacturer serve as safety guarantee. Use of other parts may cancel the manufacturer`s liability for subsequent damages 2 Operating Instructions 1 SAFETY / PREVENTION OF ACCIDENTS Non-permissible operating methods The operational safety of the delivered unit is guaranteed only if the unit is properly used as intended. Limits indicated in the technical data must not be exceed Health hazards with the refrigerant The refrigerant has only a very low acute health hazard. After acute exposure to extremely high concentrations the substance is eliminated over the lungs very quikkly. [. . . ] Prior to start up it is always necessary to prime the pump with the medium to be transported. Prior to start up the pump must be bled in order to remove air from the pump. Bleeding of the pump Remove bleeding screw P (option) Reinstall bleeding screw and tighten as soon as medium exits from filler fitting. Important: Ventilation of the pump before start the process, following steps are to relize for ventilate the pump: check the waterlevel in the tank and refill it, if necessary open the outlet of the pump, or connect only the outlet of the pump, let the inlet free flow out If there is still some air in the system, you have to repeat the steps as described before. After open the outlet start the pump for a short time. Attention before start the operation of the pump, the function of this pump must be absolutly check. In case that the pump after a longer standstill and ventilation stopp , you have to introduce a screwdriver through the airgrille into the shaft and turn it clockwise (1-2 turns min. ), until a easiness is produced. Operating Instructions 7 3 INSTALLATION AND INITIAL OPERATION Start­up of chiller After successful completion of all instructions given in this chapter, the refrigerating plant is switched on by means of the main switch or master switch (if installed). Master switch position: O = Off 1 = Operation In case of irregularities occurring during operation or extraordinary noise, the chiller has to be switched off by means of the control switch (please contact the manufacturer). Confirm the correct power supply connection. The direction of rotation of the fan motor must turn in the same direction as the arrow. 8 Operating Instructions 4 CARE AND MAINTENANCE General In case of irregularities occurring during operation or extraordinary noise, the chiller has to be switched off by means of the main switch or if missing over the power supply. Fluid (water) Cleanliness of the water/fluid should be tested daily. In case of any problems concerning the refrigeration cycle, please contact the manufacturer Note: Please ensure to switch »0« the main switch, before any maintenance or repairment work has to be performed on the chiller. Operating Instructions 11 5 FAULT DIAGNOSIS Fault Refrigeration cycle Possible cause Repairement A. Compressor and fan motor running, but chiller has no cooling capacity Refrigerant leakage refrigerant level to low Dirty condensor Ambient temp. to high Consumer capacity to high Repairement by qualified refrigeration technician only Clean condensor Refer to technical specifications Refer to technical specifications B. Compressor and fan motor is not running Temperature controller setting incorrect Temperatur controller defect Re-adjustment of temp. controller Replacement by qualified technician only Switch off the chiller and restart after 3 hours only. If compressor does not start, replacement by qualified refrigeration technician only. Compressor does not run, but fan motor is running Compressor Bimetal/Clixon switches compressor of due to overheating Switch off the chiller and restart chiller after 3 hours only. If compressor does not start, replacement by qualified refrigeration technician only. Compressor is running, but fan motor does not run Fan Motor defect Replacement by qualified technician only. 12 Operating Instructions 5 FAULT DIAGNOSIS Fault Water cycle Pump is not pumping any water Possible cause Repairement Air in the water cycle Refer to air bleeding instructions in Documentation Replace fuse Replacement by qualified technician only Pump fuse defect Pump defect Operating Instructions 13 6 IMPORTANT INFORMATION ON WATER QUALITY In order to achieve a correct and trouble-free operation on your water chiller it is necessary to examine the water quality and, when necessary, carry out water treatment. Corrosion, furring and biological problems can occur in the water system. The following information is important for the assessment of a half-open system: - water quality - all materials having contact with the cooling water - max. Deionized / Demineralized / Destilled / Return Osmosis water When using deionized, demineralized, destilled or return osmosis water it is required to add a corrosion inhibitor or glycol to the water system. 2. Fresh water/ City water / Tap water When using fresh water, city water or tap water it is recommended to analyse the water by a specialist to minimize the risk of any chiller damage through a high chloride content. A high chloride content (>20mg/l) in the system water can cause corrosion on the stainless steel evaporator. It is required to make use of a corrosion inhibitor as additive to the system water. [. . . ] T1 4 15. 0 AUX 2 D D K2 E 2. 8 N 1 3 5 13 2 4 6 14 E 2. 4 Kompressor compressor F Datum Bearb. Änderung Datum Name Hauptstromkreise Main circuit Zeichng. Nr. E0010202 Chilly 25 = + Typ Blatt 3 von 4 Blatt Pos. pos. 1 2 3 4 5 6 7 8 9 10 11 12 13 Seite page 3 2 2 3 2 2 2 3 2 2 2 2 3 Bez. [. . . ]