Scotsman MXG 327 Service Manual Download Page 8 | Manualshive

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background image

Page 6

Page 6

220-230/50/1

7

1400

26.65

3 x

Basic electr.

Amps

Watts

N. of wires Amps. fuse

230/50/1

N

5

39

3 x 1.5 m/m

2

16

N

MXG 427 AS 6

Air

Stainless steel

MXG 427 WS 6

Water

Stainless steel

Model

Cond. unit

Finish

Water req. - lt/24 HR

SPECIFICATIONS

432*

MXG 427 - MACHINE SPECIFICATIONS

Starts

Electric power cons.

amps.

Kwh x 24 HR

Cubes per harvest: 72 Large - 106 Medium - 198 Small
* At 21

°

C (70

°

F) water temperature

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Summary of Contents for MXG 327

Page 1: ...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 0080 M...

Page 2: ...ETE APRES LE TEST CAVALIER TEST FERME MACCHINA NELLA FASE LAVAGGIO O FERMA DOPO IL TEST PONTICELLO TEST CHIUSO ON STEADY FIXE FISSO BLINKING CLIGNOTANT LAMPEGGIANTE CONDENSER SENSOR OUT OF ORDER SONDE...

Page 3: ...ter supply and drain connections Final check list Installation practice OPERATING INSTRUCTIONS Start up Operatiobnal checks OPERATING PRINCIPLES How it works Freezing cycle Harvest cycle Control seque...

Page 4: ...Page 3 Page 3...

Page 5: ...shown are indicating the production of M medium and L large models For S small models ice production is approx 10 lower Important operating requirements MIN Air temperature 10 C 50 F Water temperatur...

Page 6: ...16 3 x 230 50 1 7 3 x SPECIFICATIONS MXG 327 MACHINE SPECIFICATIONS Starts Electric power cons amps Kwh x 24 HR Cubes per harvest 72 Large 106 Medium 198 Small At 21 C 70 F water temperature MXG 327...

Page 7: ...harts shown are indicating the production of M medium and L large models For S small models ice production is approx 10 lower Important operating requirements MIN Air temperature 10 C 50 F Water tempe...

Page 8: ...9 3 x 1 5 m m2 16 N MXG 427 AS 6 Air Stainless steel MXG 427 WS 6 Water Stainless steel Model Cond unit Finish Water req lt 24 HR SPECIFICATIONS 432 MXG 427 MACHINE SPECIFICATIONS Starts Electric powe...

Page 9: ...harts shown are indicating the production of M medium and L large models For S small models ice production is approx 10 lower Important operating requirements MIN Air temperature 10 C 50 F Water tempe...

Page 10: ...9 3 x 1 5 m m2 16 N SPECIFICATIONS MXG 437 MACHINE SPECIFICATIONS Starts Electric power cons amps Kwh x 24 HR Cubes per harvest 72 Large 106 Medium 198 Small At 21 C 70 F water temperature MXG 437 AS...

Page 11: ...it from the skid Save the two bolts and nuts to mount the machine on storage bin or on top of another Modular Cuber GENERAL INFORMATION AND INSTALLATION 6 Remove all internal support packing and mask...

Page 12: ...ter supply line and the unit Water supply Water cooled models The water cooled versions of SCOTSMAN Ice Makersrequiretwoseparateinletwatersupplies one for the water sprayed for making the ice cubes an...

Page 13: ...5 Has the voltage been tested and checked against the data plate rating 6 Has the water supply pressure been checked to ensure a water pressure of at least 1 bar 14 psi 7 Havetheboltsholdingthecompre...

Page 14: ...wash off any dirt that can have deposited in it during the unit off period Fig 1 B During the water filling operation check to see that the incoming water dribbles through the evaporator platen dribb...

Page 15: ...out of operation or shortage of water in the water cooled condenser the condenser tem perature rises and when it reaches 70 C 160 F for air cooled version or 60 C 140 F for water cooled version the c...

Page 16: ...RANSF DATA PROCESSOR ELECTR TIMER DIP SWITCH ELECTRONIC CARD L N RELAYS RELAY TRIAC WATER DRAIN VALVE FIG 4 16 15 14 13 2 1 7 8 9 10 3 4 5 6 11 12 Rx Tx WATER IN VALVE HOT GAS VALVE CONTACTOR COIL FAN...

Page 17: ...ube size Small Medium Large It is possible however to modify the timed length of the freezing cycle by changing the DIP SWITCH keys setting In Table B of PRINCIPLE OF OPERATION are shown the various t...

Page 18: ...wing of the same LED to monitor the BIN FULL situation Fig 6 Remove ice cubes out from the ice level control sensors to allow the resumption of the light beam Water inlet valve is energized for 45 sec...

Page 19: ...d through the suction line In both the accumulator and the suction line it exchanges heat with the refrigerant flowing into the capillary tube warmer before to be sucked in the compressor and to be re...

Page 20: ...Page 18 Page 18...

Page 21: ...o switch off the unit in case the condensingtemperatureriseuptomorethen 70 C for air cooled version or more then 62 C for water cooled version for one of the following abnormal reasons CLOGGED CONDENS...

Page 22: ...vaporator temperature sensor factory pre set is the same for all the models and is not adjustable Once completed the freezing cycle 2nd phase the system goes automatically into the defrost cycle which...

Page 23: ...e RED LED placed in the front of the P C BOARD This lighting up occures usually in the mid period of the freezing cycle and signals the switching from the first to the second phase of the freezing cyc...

Page 24: ...eparated printed circuits one at high and the other at low voltage integrated with fuse on power out 6 3 A of four aligned LEDS monitoring the operation of the machine of one extra monitoring RED LED...

Page 25: ...EEZING HARVEST CYCLE Push for more then 5 during the Freezing cycle the machine goes immediately into Harvest Push for more then 5 during the Harvest cycle the machine enters immediately in the Freezi...

Page 26: ...h allow to set up the micro processor program in order to extend or to shorten the length of freezing cycle in relation tothedifferentmodelandversionsoficemachines The DIP SWITCH first four keys setti...

Page 27: ...o parts the valve body and the valve coil Locatedonthehotgasline thisvalveisenergized through the micro processor of P C BOARD during the defrost cycle and as well during the water filling phase Durin...

Page 28: ...kthecorrisponding length of freezing cycle 2nd phase on Table B 3 Change the same DIP SWITCH KEYS settingsothatitwillcorrespondtothecombination on table B pre ceding the one remarked at step 2 This wi...

Page 29: ...Page 27 Page 27 WIRING DIAGRAM MXG 327 427 437 A 230 50 1...

Page 30: ...Page 28 Page 28...

Page 31: ...f order Replace it Red alarm LED blink Freezing or Bin Full LED Ice Level Control out of order Replace it Red alarm LED blink alternatively Compressor cycles intermittently Low voltage Check circuit f...

Page 32: ...mp Hot gas solenoid valve leaking Replace valve Short of refrigerant Charge to data plate indication Discharge head pressure too high See incorrect discharge pressure Poor harvest Restriction in incom...

Page 33: ...individual useroperation Continuouscheckoftheclarity of ice cubes and visual inspection of the watersprayingpartsbeforeandaftercleaning will indicate frequency and procedure to be followed in local ar...

Page 34: ...T OF THE REACH OF CHILDREN 4 Scoop out all the ice cubes stored into the bin in order to prevent them from being contaminated with the cleaning solution then flush out the water from the sump reservoi...

Page 35: ...then turn the main switch to OFF disconnect unit from POWER 14 Flush out the rinsing solution from the sump reservoirs 15 Place again the evaporator cover and the unit service panels 16 Give POWER to...

Page 36: ...tes 21 Place again the evaporator cover and the unit service panels 22 At completion of the freezing and harvest cycle make sure of proper texture and clearness of the ice cubes and that they do not h...

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