SIMAG SVD 152 Service Manual Download Page 19

18 

 

20 minutes. Longer time for temperature above 
25

  and  shorter  time  required  when 

temperature are below25

.Average complete 

cycle time is about 22 min. 
 

HARVEST CYCLE 

 
1. During the harvest cycle the components in 
operation are: 
• Hot Gas valve 
• Water Drain/Purge Valve 
• Water Pump (According DIP Switch #6&#7) 
• Compressor 
And both 
• Machine under Power 
• Machine in Operation 
 
2.  After  beginning  of  Harvest  Cycle,  Purge 
Valve will according DIP Switch (#6&#7) setup 
to purge water, 20” after the Purge Valve open, 
the Water Inlet Solenoid Valve is energized for 
10 seconds only in order to have a short flush 
of  fresh  water  into  the  sump  while  the  Water 
Pump and Purge valve are still in operation. 
 
3. The Fan Motor remains in OFF mode unless 
the  Condenser  Sensor  probe  rise  up  to  more 
then 38

 (same set up as per end of freezing 

cycle). 
 
4. When the ice plate is falling down from the 
evaporator, the magnetic switch is activated for 
a while providing the signal to the PC Board to 
restart a new freezing cycle. 
 
5. Observe first ice cube harvest and check size 
of ice cubes; if an adjustment is required thread 
down  or  out  screw  NO.1  as  shown  on  below 
illustration. 

 
 
 
 
 
 
 
 
 
 
 

 
 
This  screw  position  determines  the  distance 

between  the  sensor  reeds  and  the  egg-crate 
evaporator  thus  keeping  the  ice  cube  at  a 
proper thickness. 

 

6.  Observe  second  and  third  cube  harvest. 
Check if size and shape combination is correct. 
In  areas  where  extreme  problem  water 
conditions exist, filtering or purifying equipment 
is recommended. 

 

 

 
7.  Check  operation  of  magnetic  switch 
controlling it by keeping open the bottom end of 
plastic deflector for more than 30 seconds. The 
machine  must  switch  off  at  storage  bin  full. 
Release  the  plastic  deflector.  The  machine 
should restart in the freezing cycle mode within 
few seconds going through a 3' delay time. 
 
8.  Place  again  all  cabinet  panels  and  screws 
previously removed. 
 
9.  Thoroughly  explain  to  owner/user  the 
significant  specifications  of  the  ice  maker 
startup, reset and operation, going through the 
procedures in the operating instructions. 
Answer all questions about the ice maker by the 
owner  and  inform  the  owner  himself  of  the 
name and telephone number of the authorized 
service agency serving him. 

NOTE:

 This type of machine produce an "ICE 

PLATE" that breaks when falls down into the 
storage bin. Setting the ice thickness sensor in 
order to have single ice cubes may cause 
malfunction of the machine. 

NOTE: 

If water used is too soft, "demineralized" 

the  ice  thickness  sensor  might  not  be  able  to 
sense the water on its reeds, thereby it will not 
switch the unit on harvest cyc

le. 

A safety system built in the P.C. Board switches 
the unit on harvest cycle whenever the freezing 
period gets longer than 30’ or 40’

.

 

NOTE:

  To  assure  a  correct  operation  of  the 

machine  the  water  must  have  a  minimum 
electric conductivity of 20μs. 

Summary of Contents for SVD 152

Page 1: ...SERVICE MANUAL SVD 152 222 22inch Model SVD 203 303 503 30inch Model Electronic Modular Cubers Part Number 73000009 00 Version A...

Page 2: ...LUMBER Conform to all applicable codes Water inlet 14 Drains 14 For the electrician Electrical connections 15 Final check list 16 START UP Start up cycle 17 Freezing cycle 17 18 Harvest cycle 18 OPERA...

Page 3: ...WIRING DIAGRAM SVD 152 222 29 SVD 203 303 30 SVD 503 220V 31 SVD 503 380V 32 SERVICE DIAGNOSIS 33 MAINTENANCE CLEANING INSTRUCTION Icemaker 34 Ice storage bin 34 Cabinet exterior 34 Cleaning Icemaker...

Page 4: ...3 SPECIFICATIONS MODULAR CUBER SVD 152 222 Ice Making Capacity...

Page 5: ...4 NOTE To keep your Modular cuber performing at its maximum capacity it is necessary to perform periodic maintenance as outlined on page 34 35 of this manual...

Page 6: ...5 SPECIFICATIONS MODULAR CUBER SVD 152 222...

Page 7: ...IFICATIONS MODULAR CUBER SVD 203 Ice Making Capacity NOTE To keep your Modular cuber performing at its maximum capacity it is necessary to perform periodic maintenance as outlined on page 31 of this m...

Page 8: ...7 SPECIFICATIONS MODULAR CUBER SVD 203...

Page 9: ...CIFICATIONS MODULAR CUBER SVD303 Ice Making Capacity NOTE To keep your Modular cuber performing at its maximum capacity it is necessary to perform periodic maintenance as outlined on page 31 of this m...

Page 10: ...9 SPECIFICATIONS MODULAR CUBER SVD303...

Page 11: ...CIFICATIONS MODULAR CUBER SVD503 Ice Making Capacity NOTE To keep your Modular cuber performing at its maximum capacity it is necessary to perform periodic maintenance as outlined on page 31 of this m...

Page 12: ...11 SPECIFICATIONS MODULAR CUBER SVD503...

Page 13: ...on nameplate 10 10 Extended periods of operation exceeding these limitations constitute misuse under the terms of Manufacturer s Limited Warranty resulting in a loss of warranty coverage SELECT LOCATI...

Page 14: ...he present one first remove the top panel from the lower machine Add a bead of food grade silicone sealant to the top edges of the lower units freezing compartment Lift the top machine onto the bottom...

Page 15: ...pressures Since water is the most important single ingredient in producing ice you cannot over emphasize the three items listed above Low water pressure below 1 bar may cause malfunction of the icema...

Page 16: ...ected ice maker location to be easily and prompt reached Undersized wiring or improperly installed electrical circuit will result in major problems and malfunctions Voltage variations should not excee...

Page 17: ...ompressor is snug on the mounting pads 8 Check all refrigerant lines and conduit lines to against vibration and possible failure 9 Has the cuber and the bin been wiped clean with clean damp cloths 10...

Page 18: ...on 6 In the meantime the condenser sensor starts to transmit the current to the PC Board keeping in operation the Fan Motor in ON OFF mode or continuously according to the condenser temperature 7 The...

Page 19: ...d and third cube harvest Check if size and shape combination is correct In areas where extreme problem water conditions exist filtering or purifying equipment is recommended 7 Check operation of magne...

Page 20: ...lve The thermostatic expansion valve meters how much liquid refrigerant is to be allowed into the evaporator section of the refrigeration system This is determined by the temperature of the TXV sensin...

Page 21: ...zing cycle forces the water to the top of the evaporator where it is distributed through a water tube and then cascades down the evaporator surface by gravity As it flows across the refrigerated evapo...

Page 22: ...be of the compressor WATER SYSTEM During the harvest cycle the electric water drain valve is energized thereby opening the drain line All water remained in the reservoir at the end of freezing cycle i...

Page 23: ...e When the ice bin is full of ice the last batch of ice cubes released from the evaporator accumulates to keep the bottom end of the plastic deflector in open position with the magnetic switch contact...

Page 24: ...l And press MODE button that can go to start up cycle Both the third yellow LED and forth red LED are blinking fast Ice thickness sensor fault When machine start if PC board detect the ice thickness O...

Page 25: ...k 6 and 30 every sixth cycle 6 OFF 7 ON Water pump work 30 every three cycles 6 ON 7 ON Water pump work 30 every six cycles 8 For factory use only 9 OFF Machine will stop after clean procedure need to...

Page 26: ...nt just before harvest Compressor amps experience a similar drop On water cooled the discharge pressure is constantly maintained during the freeze cycle by the water regulating valve However suction p...

Page 27: ...lug for transformer input and output power of two terminals for input power live line and compressor output of 3 terminals for power null line of one 5 PIN plug for components output 1 2 3 4 5 LEDNo 1...

Page 28: ...perature sensor probe located in contact with the condenser tube coil detects the condenser temperature variations and signals them by supplying current at low voltage to the P C BOARD In the air cool...

Page 29: ...the maximum level into the sump controlled by the Water Level Sensor After 3 minutes from the start up of the freezing cycle the Water Inlet Valve is energized again for a short period to re fill the...

Page 30: ...KNESS SENSOR E ICE FULL SENSOR F WATER LEVEL SENSOR G CONDENSER SENSOR H UIM BOARD AIR COOLED ONLY br brown b blue gy yellow green w white bk black r red o orange p purple g green y yellow I PC BOARD...

Page 31: ...mpressor contactor C Compressor D Ice thickness sensor E Ice full sensor F Water level sensor G Condenser temperature probe H Led display I PC Board J High pressure controller L Water pump M Water inl...

Page 32: ...essor contactor C Compressor D Ice thickness sensor E Ice full sensor F Water level sensor G Condenser temperature probe H Led display I PC Board J High pressure controller K Startup delay switch L Wa...

Page 33: ...terminal board B Compressor contactor C Compressor D Ice thickness sensor E Ice full sensor F Water level sensor G Condenser temperature probe H Led display I PC Board J High pressure controller K Sta...

Page 34: ...open Test and replace Compressor winding open Test and replace Machine runs makes ice does not try to harvest Ice thickness control open Check sensor fingers if are not covered with scale sediment To...

Page 35: ...sition for more that 30 should cause the ice maker to shut off Once the evaporator deflector is released in its closed position the ice maker will restart 8 Check cube size adjust if required through...

Page 36: ...the operation and blinking slow of the red Clean LED Push the CLEAN BUTTON when machine stop the machine restarts in the freezing cycle 9 ON Machine will go to freezing cycle directly 7 Replace the ev...

Page 37: ...Milanese MI ITALY Tel 39 02 93960357 Fax 39 02 93960366 e mail service simag it SIMAG FAR EAST Singapore Office 140 Paya Lebar Road 08 09 AZ Paya Lebar Singapore 409015 Tel 65 6738 5393 Fax 65 6738 1...

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