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Industriventilation Produkt AB, Box 3103, SE-350 43 Växjö, Sweden

Phone: +46 (0)470-75 88 00 email: [email protected] www.ivprodukt.se

Air handling with the focus on LCC

Air handling with the focus on LCC

Cooling Unit for Producing Chilled Water

Envicooler

®

Operation and Maintenance Instructions

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Содержание Envicooler

Страница 1: ...Air handling with the focus on LCC Cooling Unit for Producing Chilled Water Envicooler Operation and Maintenance Instructions ...

Страница 2: ... 350 43 VÄXJÖ Sweden Street address Sjöuddevägen 7 Phone 46 0 470 75 88 00 Telefax 46 0 470 75 88 77 Seller Service Post address Post address Telephone Telephone Other System Data Type of unit Order number Year manufactured Supply voltage Refrigerant SAQ approved HP Hydrostatic test ...

Страница 3: ...____ 7 3 1 Regulations for Commissioning________________________________________ 7 3 2 Checklist ___________________________________________________________ 8 4 Maintenance Instructions and Procedures __________________________________ 9 4 1 General ____________________________________________________________ 9 4 2 Requirements by Authorities according to the Refrigerant Act ______________ 9 4 3 P...

Страница 4: ...id to gas The cold suction gas that now has absorbed heat from the cooled space medium is sucked back into the compressor where it is compressed and heats up In all fully hermetic compressors the suction gas is also used to cool the electric mo tor that drives the compressor The refrigerant now contains heat from the component being chilled heat from the compressor motor and heat generated by comp...

Страница 5: ...50 Hz Size Rec fuse Rec cable section EVC 1610 EVC 2410 EVC 3110 EVC 4020 EVC 4820 EVC 6220 EVC 7830 EVC 9330 20 AT 25 AT 35 AT 50 AT 50 AT 63 AT 80 AT 100 AT 4 mm2 6 mm2 10 mm2 16 mm2 16 mm2 25 mm2 35 mm2 50 mm2 Envicooler 251 252 External start signal Potential free NO 253 254 Group alarm Potential free NO C1 C2 C3 C4 SET AL prg oC XC440C Dixell 1 2 Set point To show the set point press the SET ...

Страница 6: ...with these cooling units One piece cooling units charged with 3 kg or less refrigerant are treated in system cal culations as if they didn t contain any refrigerant at all This means that you can add or include any number of one piece cooling units of the type described above in a sys tem without being required to take increased refrigerant volume into consideration 2 2 One piece Units containing ...

Страница 7: ...he system according to an accompanying checklist complete with commissioning record A copy of the Commis sioning Record shall first be signed by the technician who has commissioned the unit then be signed by the seller and after that be sent in to IV Produkt The validity of the product warrantee is conditional on the system having been correctly commissioned No modifications in the machine are per...

Страница 8: ... you ve cancelled any interlock in order to start the pumps restore it 14 Check that the transducer is wired to the to the right measurement point 15 Check that the sensor is at the correct location according to the diagram and that it works properly 16 Check that the protective motor switch and the time relay are correctly set according to the Commissioning Report 17 Now run through all the contr...

Страница 9: ...igned to operate automatically The Commissioning Record indicates the settings at which the system was set when it was commissioned Make sure that the settings on the thermostats controllers pressure switches and other adjustable components have not been altered by someone who lacks knowledge about how the system operates 3 See to it that the machine room or other component locations are kept clea...

Страница 10: ... if required Faulty compressor Determine the fault Replace the compressor The low pressure switch switches out the compressor Too little refrigerant There is a leak in the system Seal the leak and charge with refrigerant No flow or poor flow across the evaporator Check the flow Check the static pressure in the expansion vessel Check the circulation pump Too high glycol content Check the glycol con...

Страница 11: ...and the cooling perform ance of the system is at the same time poor the probable cause is that the system is leaking If you see one or two or just a few bubbles in the sight glass when the ma chine starts up and notice that it operates with reduced output or operates normally does not necessarily mean that the refrigerant volume is too low IF BUBBLES APPEAR IN THE SIGHT GLASS AND THE PERFORMANCE O...

Страница 12: ...mpressor 2 VO Oil heater 3 GP High pressure switch 4 MU Measurement tapping of Schrader valve 5 KD Liquid cooling condenser 6 SG Sight glass 7 FT Drying filter 8 MU Measurement tapping of Schrader valve 9 VS Thermostatic expansion valve with external pressure compensation 10 EV Liquid cooler 11 MU Measurement tapping of Schrader valve 12 GP Low pressure switch ...

Страница 13: ...0 40 40 40 40 40 40 40 Connection diameter dy mm 28 35 35 42 42 54 54 54 Rec cooling medium volume min l 287 431 556 359 432 556 467 556 Heating medium Water temp 31 39 C l s 0 66 0 98 1 28 1 64 1 95 2 56 3 22 3 83 Internal pressure in connection point kPa 35 35 35 35 35 35 35 35 Connection diameter dy mm 28 35 35 42 42 54 54 54 Refrigerant HFC 407C kg circuit 1 1 6 2 6 3 0 1 6 2 6 3 0 1 6 3 0 kg ...

Страница 14: ...Page 14 Operation and Maintenance Instructions Envicooler 2001 03 09 Air handling with the focus on LCC ...

Страница 15: ...Industriventilation Produkt AB Box 3103 SE 350 43 Växjö Sweden Phone 46 0 470 75 88 00 email info ivp skanska se www ivprodukt se Air handling with the focus on LCC 20010309E D ...

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