Scotsman MAR 108 Скачать руководство пользователя страница 15 | Manualshive

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Page 15

Page 15

MAR 78-108-128

MAR 208-308

mm (inch)

mm (inch)

A

621 (24.45)

661 (26.02)

B

876 (34.48)

1296 (51.03)

C

520 (20.38)

520 (20.38)

D

813 (32)

853 (33.58)

E

231 (9.09)

440 (17.32)

F

3/4" GAS

28 mm

G

3/8" GAS

1/2"

UNIT LAYOUT AND OVERALL DIMENSIONS

A

B

C

D

E

F

G

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Содержание MAR 108

Страница 1: ...Tel 39 02 93960 1 Aut Sel Telefax 39 02 93550500 Direct Line to Service Parts Phone 39 02 93960350 Fax 39 02 93540449 Website www scotsman ice it E Mail scotsman europe scotsman it ISO 9001 Cert n 00...

Страница 2: ...alve The refrigerating and electrical system must be completedbythepurchaseraspertheinstructions given in this service manual who has to provide forthecompletecondensingunit itscontrolsand refrigerant...

Страница 3: ...ections 17 Water and refrigerant circuit 17 Electrical connections 18 Installation practice 19 Mar Split in multiple installation 20 Typical non code commercial installation 20 Section III TESTING Com...

Страница 4: ...230 50 3 1000 6000 1 2 1 2 2 1 SS MAR 208 400 50 3 N 230 50 3 1650 8250 1 2 1 2 2 1 SS MAR 308 400 50 3 N 230 50 3 2200 9700 1 2 1 2 2 1 SS 131 131 131 223 223 850 Cooling req ts 1800 Evap T C 18 24 2...

Страница 5: ...CONTROL SETTING 0 2 Bar WATER PRESSURE CONTROL SETTING 0 8 Bar MAX WATER TEMPERATURE 35 C MIN WATER TEMPERATURE 5 C MIN WATER PRESSURE 1 atm MAX WATER PRESSURE 5 atm MIN AMBIENT TEMPERATURE 5 C MAX AM...

Страница 6: ...TING 0 2 Bar WATER PRESSURE CONTROL SETTING 0 8 Bar MAX WATER TEMPERATURE 35 C MIN WATER TEMPERATURE 5 C MIN WATER PRESSURE 1 atm MAX WATER PRESSURE 5 atm MIN AMBIENT TEMPERATURE 5 C MAX AMBIENT TEMPE...

Страница 7: ...ROTATING SPEED 2 4 RPM thick ice CONDENSING CAPACITY 9750 Kcal hr TD 10 15 C HEAD PRESSURE SETTING 14 16 Bar on air cooled units LOW PRESSURE SETTING 1 6 Bar on air cooled units HI PRESSURE CONTROL SE...

Страница 8: ...SETTING 16 18 Bar on air cooled units 16 17 Bar on water cooled unit LOW PRESSURE SETTING 1 9 Bar HI PRESSURE CONTROL SETTING 36 Bar LO PRESSURE CONTROL SETTING 0 2 Bar WATER PRESSURE CONTROL SETTING...

Страница 9: ...on air cooled units 14 Bar on water cooled unit LOW PRESSURE SETTING 1 Bar on air cooled units 0 75 Bar on water cooled unit HI PRESSURE CONTROL SETTING 34 2 A C Bar 30 2 W C Bar LO PRESSURE CONTROL S...

Страница 10: ...and condenser unit with their own components with their own refrigerant and water lines fittings and electric wires terminal block b the evaporator drum unit MAR Split Unit supplied by Frimont complet...

Страница 11: ...and to minimize operational checks and functions however any excessinusingautomaticcontrolsandprotections may complicate the situation at the point that some of the controls be eliminated later by th...

Страница 12: ...quid lines near the condensing unit Because the appearence of an installation is important the piping should be put in as neathly as possible For best sound absorb tion it is best to put in two absorb...

Страница 13: ...angements are largely offset and excess melting will not occur In most situationswherewholequantityoficeproduced isbeingusedonadailybasis itisnotnecessary to provide cooling for the ice storage room b...

Страница 14: ...porator water supply 13 Water drain line 14 Liquid line service valve 15 Suction line service valve REFRIGERATED ICE STORAGE ROOM Jacket system 1 Condensing unit 2 Liquid line 3 Evaporator drum unit 4...

Страница 15: ...108 128 MAR 208 308 mm inch mm inch A 621 24 45 661 26 02 B 876 34 48 1296 51 03 C 520 20 38 520 20 38 D 813 32 853 33 58 E 231 9 09 440 17 32 F 3 4 GAS 28 mm G 3 8 GAS 1 2 UNIT LAYOUT AND OVERALL DI...

Страница 16: ...d to mount it firmly to avoid a suddenshiftthatwouldendagertherefrigerant lines Precautions to be observed vary with the kind of situation in which the unit is to be placed The area should be well ven...

Страница 17: ...irectly to float valve line fitting of 3 4 gas copper tube is not recommended for sea water supply also make sure to fit on this same a hand shut off valve close enough to MAR unit and a proper kind a...

Страница 18: ...sible for serious damages to the overload switch and motor windings Make the necessary steps so that the MAR Split Unit be electrically connected to the condensing unit control box contactor as illust...

Страница 19: ...7 Water supply line 8 Hand shut off valve 9 Water filter 10 Condenser water inlet 11 Condenser water outlet 12 Evaporator water supply 13 Water drain line INSTALLATION PRACTICE SPLIT UNIT ON OFFSHORE...

Страница 20: ...The automatic expansion valve is the leading multipleevaporatorsystemrefrigerantcontrol as it does not regulate the low side pressure but rather control the filling of the evaporator with refrigerant...

Страница 21: ...ump COMPLETE SYSTEM CHARGING Refrigerantshallbechargeddirectlyfromoriginal drums through a combination filter drier Charge the system by means of a charging fitting in the liquid line Wheigh the refri...

Страница 22: ...by 18 KT1orangeLEDblinksduringthisdelay On normal operation compressor ON KT1 LEDs orange and green are steady ON together NOTE In case on any temporally Ice maker trip OFF not alarm due to NO LOW wa...

Страница 23: ...1 82 14 Let the system operate for at least two hours then check one by one the operation of each individual control and protective device for proper setting 15 Eliminate any excessive vibration or n...

Страница 24: ...the jacket inner surface 2 PRINCIPLES OF OPERATION HOW IT WORKS Onfreshwaterinstallationacombinationofwater pump and water distributor tube provides a constant flow of cold water to the upper side of...

Страница 25: ...when passing from the liquid line to the evaporator As the pressure decreases on the low side the expansion Valve open and refrigerant escapes into the evaporator drum channel where it absorbs heat f...

Страница 26: ...f 1 570 MAR 208 and 308 have a gear reducer with a ratio of 1 525 The gear reducers are greased for life therefore they do not require any mainte nance R Water pump spay bar Used only on FRESH WATER v...

Страница 27: ...LIT ADJUSTMENT REMOVAL REPLACEMENT PROCEDURES 2 REMOVE AND REPLACEMENT OF EVAPORATOR DRUM REFRIGERANT SEALING DEVICES 1 Before removing the refrigerant manifold it is necessary at first to close the v...

Страница 28: ...o the correspondingportofthemanifoldandtighten it with the four head necessed screw 20 Connect the refrigerant inlet line on its manifoldfittingandtightenthefittingflarenut 3 REMOVAL AND REPLACEMENT O...

Страница 29: ...inlet water temperature and ambient tempera ture 8 Check drive motor operation Normal operating temperatures are about 60 C 160 C which is hot to touch Check with amperometer Amps drawn 9 CheckVbeltfo...

Страница 30: ...bit float valve holding arms and remove it from holders 11 Check nozzle orifice condition In case of obstruction clean it by pin 12 Prepare a solution in a bucket by mixing for 1 2 liter of SCOTSMAN C...

Страница 31: ...om 9 to 5 24 Prepare as per 12 using SCOTSMAN sanitizer rather then cleaner Possible sanitizing solution could be by mixing 1 5 cl 5 oz of sanitizer with 5 lt 1 gallon NEVER MIX CLEANING WITH SANITIZI...

Страница 32: ...unit in operation for about 10 minutes 9 Disconnect again unit from power 10 Repeat again 5 to dump reservoir from chemical solution and later rinse all parts by fresh water 11 Prepare as per 6 using...

Страница 33: ...ercharge of oil in system remove charge and drier Replace recharge the system Not enough refrigerant Check for refrigerant leak Lo water level Intermittent water supply Water shut off valve closed or...

Страница 34: ...ainst ice formation rotating drum Lower water level to correct value Making wet ice Surrounging air temperature Correct or move unit to cooled above 40 C 100 F location Under or over charge of refrige...

Страница 35: ...Split Unit WARNING Whenconductingacontinuity check of the MAR Unit 1 Disconnect the main power source 2 DO NOT use an incandescent lamp or jumper wire conduct all tests with a voltohm meter B WHITE G...

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