Industrial scale ice machines

Service Manual

EVE COMPACT – Ed. 11/2005

0

Rev. 11/05

Service Manual

EVE Compact Units

i. Direct expansion with thermostatic valve ii. Direct expansion through flooding with level control

Diagram of refrigerant circuit with main components

Diagram of refrigerant circuit (level control and screw comp.) d) water

VI. Installation a) Handling, unpacking and disposal of packing b) Positioning, levelling and access for maintenance page 7 page 8 page 17 page 18

Re-start procedure after supply interruption or Emergency stop page 20 feeding 22

SET-UP and WORKING DATA – R22

SET-UP and WORKING DATA – R404a/507

VIII. CLEANING, MAINTENANCE and REPLACEMENT PROCEDURES

a. Replacement of gear reducer and motor b. pump c. Replacement of Ice-breaker bush and scraper d. Replacement of thermostatic valve/FTL

f. Replacement of deflector and drip tray

g. Replacement of shaft bushes

IX. CLEANING and MAINTENANCE

1. Condenser/oil cooler: cleaning and fan replacement

2. Compressor (see attached service manual)

3. Liquid receiver: safety pressure valve

4. Filters: oil suction and liquid line

5. Valves: solenoid, thermostatic, check, non return

6. Electric control panel: wiring diagram (reciprocating compressors)

Topographic electrical diagram (reciprocating compressor)

7. Electric control panel: wiring diagram (screw compressors)

Topographic electrical diagram (screw compressor)

FAULT

Exploded and page 26 page 27

page 28 page 29 page 30 page 31 page 31 page 32 page 33 page 33 page 33 page 34 page 34 page 35 page 36 page 38 page 39

Service manual

•

•

•

•

Thank you for purchasing a Scotsman EVE machine, we would like to draw your attention to important safety precautions to be used when operating the equipment.

The refrigeration cycle operates by compression of vapour, with high and low pressure features and controlled refrigerant.

The plant has to be operated in accordance with the attached use and maintenance instructions.

Components such as pressure switches and safety valves should be checked periodically to ensure correct operation.

Maintenance on the equipment should only be carried out by qualified personnel, technical support is always available.

During design and construction of our equipment we evaluate the potential dangers, solve them where possible using normal safety practice and constructional standards but, some residual risks remain for example:

Contact with refrigerant can cause freezing (scalds)

Refrigerant leaks can cause suffocation in closed environments

High temperatures are present on high pressure circuits

Safety valves can vent refrigerant at high pressure and high temperature

•

The plant has been designed for maximum ambient temperature of

+40°C

On the serial number plate of the machine are indicated the pressure and temperature working limits (TS and PS).

If a check valve is installed before the safety valve on the liquid receiver, ensure that is always in open position.

The above is not an exhaustive list; risk assessments and evaluation of potential hazards should be carried out before any work is started.

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Service Manual

INTRODUCTION

Linea.Net Milano Srl manufacture flake ice machines in various production capacities and configurations to suit the numerous market demands.

The agro-food industry (bread making, meat processing, cheese, etc.) and in particular the fishing industry, have found flake ice to offer many advantages over traditional ice cubes or crushed ice.

In the chemical and cement industry flake ice is used during production to avoid premature drying out or temperature control.

The following is an example of sectors that use ice:

-

On board installations – Fishing

- Fishing industry - Processing

-

Manufacture of fish products

-

Fish markets

-

Distribution of fresh fish

- Retailers of fish or fish products

- Supermarkets

-

Delicatessens

-

Meat markets

- Manufacture of poultry and game products

- Production of salamis and sausages

-

Oven products and industrial bread-making

-

Production of dairy products and cheeses

- Textile industry and paint production

- Chemical-pharmaceutical companies

-

Building and construction companies (in compliance with European Standard

EN206-

1 : 2000)

Our vast experience (since 1973) allows us to offer machines with a high level of reliability, vouched for by numerous clients who are satisfied with the machines they have used.

These machines have been designed to work under stress and offer the following advantages:

-

Reliability- Long-life – Reduced running and maintenance costs

Other than the advantage of reduced production costs when using ice, a “

dry and sub-

cooled ice” will last longer and therefore provide a longer thermal inertia. Being flat and free from sharp corners (unlike crushed ice) it will not damage the outside of the product with which it comes into contact which, on defrosting, will lead to a deterioration of the merchandise.

Example of model designation

EVE200 AS = Fresh water version – Land Based – Air cooled condenser

EVE200 LWS = Fresh water version – Land Based – Water cooled condenser

EVE200 WS = Fresh water version – On Board – Sea water cooled condenser

EVE200 AS SW = Sea water version - Land Based – Air cooled condenser

EVE200 LW SW = Sea water version - Land Based – Sea water cooled condenser

EVE201 WS SW = Sea water version – On Board – Sea water cooled condenser

Service manual

III. A working outline

A fixed vertical evaporator (1) is cooled by the refrigerant fluid evaporating on the inside.

Water is evenly distributed from above onto the internal surface (2), where it freezes once it comes into

2 4

1

contact with the cold wall. A helicoidal ice-breaker (3) is positioned parallel to the cylinder axis, almost in contact with the internal surface and the gear reducer (4) causes the central shaft

(5) to turn at a constant speed. The ice-breaker is connected to the central shaft with a satellite mechanism.

The ice-breaker rotates on the surface of ice; it removes it by breaking it into flakes which then

5

3

8

fall by gravity. A flat, vertical blade

(6) follows the ice-breaker cleaning the surface of possible residue.

Un-frozen water is returned to the reservoir (7).

Water pump (8) circulates water around the system.

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7

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a. WATER SYSTEM

At the base of the machine is the water reservoir in which the stainless steel pump is immersed. Water is pumped to the distributor from which it falls by gravity; there is a filter (2) and shut-off valve (1) on the toroidal distributor which is positioned internally and integral with the central shaft.

Depending upon the application, there are two different types of distributor: a)

Peralluman pipe with regular perforations and supply from above (land version) b)

Stainless steel ring pipe with regular perforations and supply from the axis of the gear reducer (on board version)

2

1

3

4

In the LAND version, a level sensor (3) allows a check to be carried out on the water flow.

The upper part of the cylinder is rounded at the end in order to channel the water towards the walls of the cylinder.

In the reservoir there is a float valve which regulates the flow of water from the external feed circuit in such a way that the level remains constant. The ice has to be dry and subcooled, for this the surface of the evaporator cylinder which is immediately in front of the scraper roller is not irrigated by the water distribution apparatus.

b. ICE OUTLET

The stainless steel shaft, positioned in the centre of the cylinder, is turned on its vertical axis by a gear reducer. Connected onto the shaft are two ‘V’ arms onto which the icebreaker is fixed on one side and the scraping roller on the other. This collects and cleans the surface of ice. The ice-breaker, turning on its own axis and rotating over the ice formed on the inside, detaches it by breaking it

(see photo).

Service manual

A deflector prevents the ice from falling into the water reservoir.

Depending on the type of application and position of the machine, there must be adequate conveyors, containers or storage bins to collect the ice.

The rotation speed determines the thickness of the ice: a slower speed corresponds to an increased thickness and sub-cooling of the ice.

It is possible to alter the speed by applying a frequency converter (inverter) onto the electrical supply of the gear reducer.

c. REFRIGERATION SYSTEM

The evaporator cylinder is the main element in the machine. In its internal chambers the cold refrigerant circulates and absorbs heat. The walls facing the outside are insulated with foamed polyurethane. At the base of the cylinder there is a system for the removal of oil should the machine need to be closed down for long periods or for use during maintenance visits.

DIRECT EXPANSION WITH THERMOSTATIC VALVE

The refrigerant liquid is circulated through a coil on the inside of the cylinder (acting as heat exchanger), then with the use of a thermostatic valve is injected into the evaporator where it absorbs heat and evaporates. The vapour is recovered using the suction pipe as indicated in the technical diagrams.

FLOODING with LEVEL CONTROL

The refrigerant liquid flows through the pipe for sub-cooling with the use of a solenoid valve and a regulating valve (for the fall in pressure). It then floods the evaporator’s internal chambers, where the expansion phase takes place. If the machine is not completely flooded, the level control is carried out with an electronic controller (FTL) which controls the solenoid valve. The variation in pressure between the liquid and suction must have an

∆P no lower than 12 bar to guarantee an adequate supply of refrigerant.

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Diagram of the refrigerant circuit with main components

Pos. component Pos.

1 Evaporator/ice machine 30

3 F1 = mechanical cartridge filter 31

7

8

9

5

6

10

25

27

28 reciprocating compressor high pressure switch low pressure switch

Oil pressure switch

Vibration eliminator oil separator

Non return valve

Air cooled condenser pressure switch

component

rotalock tap liquid receiver

33

34

37

38

39

40

41

45 globe tap

Solid cartridge filter

Solenoid valve

Liquid gauge

Thermostatic Valve high pressure flexible pipe wheel tap

Lead sealed tap (open)

Service manual

Diagram of the refrigerant circuit with main components (level control and screw compressor version)

1

2

3

5

6

7

Evaporator/ice machine

FTL level control

Mechanical cartridge filter screw compressor high pressure switch low pressure switch

22

24-41

25

26-33

27

28

Liquid gauge wheel tap

Non return valve globe tap

Air cooled condenser pressure switch

10

11

12 oil separator

Oil thermostat

32

34

35

Safety valve

Solid cartridge filter plate exchanger

13

14-15

23-30

16

17-21

37-43

18-38

19 oil resistance oil level indicator rotalock tap

Oil cooler solenoid valve

Globe valve mechanical cartridge filter

40

42

44

45

46 high pressure flexible pipe mechanical filter

Thermostatic Valve

Lead sealed tap (open) mechanical filter

20 Flow

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d. INLET WATER

The structural differences between sea and fresh water versions are minimal:

1) Scraping blade is in plexiglass (more rigid) instead of rubber.

2) Surface of the evaporator in contact with the water has a horizontally grooved surface to improve the thermal exchange.

When using fresh water, the ice will vary depending on the hardness of the water, i.e.: a. Almost pure water such as rain water produces ice which is partly transparent and firmly attached to the cylinder wall b. Water with a high lime content causes a calcareous sediment to collect on the cylinder that also causes the ice to stick

In both cases, the scraping roller breaks the layer of ice which forms on the wall of the cylinder, but a loss in quality may be experienced.

Our experience has demonstrated that the addition of a small amount of salt (sodium chloride), eliminates these problems; the ice is compact and it breaks up into larger pieces.

The amount of salt used however so low that it is not possible to taste it in the ice and it will not affect food products.

The salt can be dosed with automatic measuring devices, or by a system that automatically regulates the conductivity of the water (average 1500 uS at +17°C).

When using sea water, after checking that the machine is suitable for this type of use, it will be necessary to select a lower evaporating temperature than that used for fresh water, in order to obtain a good quality flake (normally between 4 and 8°C lower). The salinity of the water used is very important for the correct operation of the machine and often an adjustment made whilst in the harbour will provide different results when out to sea, due to different levels of salinity.

Construction

Differences

FRESH

WATER

LAND

FRESH

WATER

ON-BOARD

SEA

WATER

LAND

SEA

WATER

ON-BOARD

Evaporator internal surface

AISI304 smooth

AISI304 smooth

AISI304 rifled AISI304 rifled

Scraper material

Water distributor

Water sensor level

Supply for water distributor

Open, made of aluminium provided

Closed ring, in

AISI304

Not provided

Open, made of aluminium provided

Closed ring, in

AISI304

Not provided

By gravity, from upper cover

Through shaft and rotating

By gravity, from upper cover

Through shaft and rotating coupling coupling

100% 100% 115% 115%

Refrigeration Power

Evaporating

Temperature

-28°C -28°C -35°C -35%

24.000

22.000

20.000

18.000

16.000

14.000

12.000

10.000

8.000

6.000

4.000

2.000

0

Service manual

IV. Production Diagram

Diagramma Produzione / Production Diagram

200

650

1300

300

800

1500

10 15 21 25

T.alim.acqua °C/ Water temp.°C

30 35

Models

Ice production

Kg/24h

Thick. 1.8-2.2mm

Water temp. 22°C,

EVE200AS

EVE300AS

EVE400AS

EVE650AS

amb.temp. 35°C

1.600

2.300

3.500

5.800

EVE800AS 7.500

EVE1000AS 9.000

EVE1300AS 11.000

EVE1500AS 13.500

EVE2400AS 21.000

Ice production

Kg/24h

Max production

Water temp. 15°C, amb.temp. 25°C

1.750

2.550

3.700

6.200

7.870

9.800

12.000

14.500

22.060

Evaporating

Temperature fresh water

°C

-28

-28

-28

-28

Evaporating

Temperature sea water °C

-35

-35

-35

-35

-28

-28

-35

-35

400

1000

2400

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Service Manual

The machine is intended to be used at room temperature.

Do not install in refrigerated rooms or in places where the temperature is too low.

If this is unavoidable, provision must be made to protect the electrical parts from possible dampness and to ensure that the water in the reservoir does not freeze.

The guarantee is no longer valid when there are signs that the machine has been used in conditions/environments outside the following:

Conditions of use:

Minimum

Room temperature 2°C (36°F)

Maximum

40°C (104°F)

Temperature of inlet water (Fresh). 5°C ( 41°F) # 35°C (95°F)*

Temperature of inlet water (Sea) 2°C (36°F) # 35°C (95°F)*

Electrical voltage -10% +10%

Water pressure 1 bar / 14 psi 5 bar / 70 psi

# for lower temperatures it is advised to use a pre-heating system.

* to obtain a good quality ice it will be necessary to reduce the water temperature to less than 25°C.

Service manual

EVE200AS

EVE300AS

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EVE400AS

EVE650AS

Service manual

EVE800AS

EVE1000AS

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Service Manual

EVE1300AS

EVE1500AS

Service manual

Model

W mm.

D mm.

H mm.

EVE2400ASR

Net

Weight

Kg

Ice

Outlet mm.

Inlet water

Inches

Overflow

Inches

Packing

Dimensions

WxDxH

EVE200AS 1900 1230 1160 780 335

EVE300AS 2100 1400 1305 800 335

EVE400AS 2100 1400 1525 1150 335

EVE650AS 2600 2040 1555 2000 540

1/2

1/2

1/2

1/2

3/8

3/8

3/8

3/8

2250x1530x1

400

2450x1700x1

500

2450x1700x1

710

2900x2140x1

750

EVE800AS 3200 1990 1805 2200 540

EVE1000AS 4100 2365 2210 2950 655

EVE1300AS 4600 2365 2200 3750 655

EVE1500AS 4600 2365 2495 4300 655

EVE2400AS

6500

1990

2150

1680

2000

2505

5050

2400

1/2

3/4

3/4

3/4

3/8

3/8

3/8

3/8

3500x2140x2

000

4400x2340x2

390

4900x2340x2

390

4900x2340x2

470

1030 3/4 3/8

6800x2340x2

200

2250x2100x2

200

Specification and/or dimensions may change without prior notification.

Air freight packing dimensions

WxDxH

-

-

-

-

-

4400x2250x2300

+2750x700x580

4900x2250x2300

+2750x700x580

4900x2250x2300

+2750x700x580

-

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VI. INSTALLATION a) Handling, unpacking and disposal of packing

Check that the packaging has not been damaged during transportation.

Proceed carefully with the unpacking, and then place the machine in its final position.

To lift the equipment, secure the machine equally on all sides and lift using the rings which are fixed on the upper cover

(EVE200 –EVE400) or the basement holes

(EVE650-800). Avoid passing under the machine when lifted.

It is possible to move the machine with a fork-lift lifting from the base (pay attention to the centre of gravity and the weight of the machine).

All damage caused to the machine during transportation should be reported immediately to the deliverer and noted on the delivery slip.

The crate is made of a recyclable material (wooden cage + polyethylene film); dispose of it via an ecological waste disposal company dealing in the recovery of prime materials and waste disposal.

Service manual

a) Positioning, levelling and access for maintenance

The equipment is factory assembled and ready to be connected to power and water.

Position the equipment and ensure it is level (front to back and left to right).

Remember to leave adequate space between walls etc. and other equipment, for maintenance and to ensure adequate air circulation.

The ice outlet must be accessible for maintenance/repair procedures

Ensure that the air cannot re-circulate from the ice outlet.

b) Water inlet connection

The water used for the formation of ice, must be connected to the reservoir, an overflow pipe must also be connected.

If the temperature of the water is close to 0°C, it is advisable to pre-heat to avoid the formation of ice in the pipes and inside the reservoir.

If the water is not completely pure, we advise applying a filter system for the purification.

DIAGRAM with WATER INLET FILTER

R= regulating tap for

distributor water

F3= mechanical filter

P = pump

F = ballvalve

V = water reservoir

S =water outlet

F1 = cartridge filters

F2 = pre-filter

c) Ice outlet

The discharge of the ice takes place at the base of the evaporator; dimensions of the outlet are indicated in the technical tables.

It is possible to aim the outlet of ice with a stainless steel conveyor, made to measure, depending on the specific requirements.

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When the machine is positioned on a storage bin, it is possible to control the filling with the use of mechanical or optical sensors or a timer that allows the machine to be stopped and started on demand.

For safety reasons an ice level sensing device must be used on the outlet of the evaporator cylinder to avoid ice entering the machine and damaging the shaft and other rotating elements.

1) Electrical connection

The electrical connection should be carried out by specialised and qualified personnel. Installation must conform to all local standards of the country in question.

The machine is provided with a main power isolator to cut-off the electrical supply.

!

Safety first!

For a correct and secure installation use the right tools and protection.

For the electrical connections please proceed as follows:

• Drill the electrical board bottom part

• Pass through the cables on the previous hole done applying a gasket to tighten

• Connect cables to the terminal board

Service manual

VII. START-UP and ADJUSTMENT

First start-up and adjustment

Once water and electrical connections have been completed, the ice machine can be switched-on. In case of malfunction the electrical controls will protect the machine from damage and the corresponding alarm light(s) will be illuminated.

IN COLD ENVIRONMENTS ENSURE EQUIPMENT IS NOT STARTED UNTILL CRANK-

CASE HEATER HAS WARMED THE OIL SUFFICIENTLY

Check that the working suction pressure is as shown in the technical specifications.

In all systems it is necessary to top up the lubricating oil, due to the combination of oil/refrigerant in the circuit. A few hours after the start-up of the system, it is advised, as a precaution, to check that the level of oil compressor is normal.

At start-up, check the rotating direction of the shaft (anti-clockwise).

In case of wrong rotation reverse two of the electrical supply phases.

Open the water supply valves.

The machine initially may produce low quality ice and should be adjusted as required.

One hour after start-up check the following parameters:

• Working pressures (high and low)

• Water freezing level inside evaporator surface (if not completely frozen adjust the expansion valve)

• Quality and ice thickness

• Base deflector and ice scraper are clear of any ice build up

SWITCH OFF and RE-STARTING

When the machine is switched off using the STOP button provided in the electrical board.

The liquid line solenoid valve will close and the equipment will enter a PUMP DOWN phase. At the end of this phase the rotating shaft and the water pump continues to operate to clear any ice residue from the evaporator surface (a timer defines when the drive-motor and the pump will stop).

The machine will stop at the end of the pre-set time and is then ready to re-start.

To start push the START button.

Only in cases of emergency use the red button EMERGENCY-STOP

RE-START PROCEDURE AFTER SUPPLY INTERUPTION or EMERGENCY STOP

In the event of the machine experiencing an unexpected loss of power, the machine stopping because the gear reducer is blocked with ice or it was stopped unexpectedly for safety reasons; the evaporator will be flooded with refrigerant.

On the re-start of the refrigerant system the presence of liquid in the suction line can seriously damage the compressor (especially with the ammonia models).

To avoid this problem, we suggest you proceed as follows:

-

Check that the ice-breaker is free from ice (possibly by rinsing with water)

- Empty the refrigerant out of the cylinder using a Pump-down procedure, having firstly partially closed the suction valve.

-

Re-start the machine in normal working mode with all valves returned to their normal position.

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If the system initially produces low quality ice, it will be necessary to make some adjustments. a. completely open the downstream tap on the recirculation pump; close the tap slowly, until there is a constant level of water in the distribution channel without spillage and excessive return of water into the reservoir (LAND version) and the vertical distributor sprays the cylinder surface from all holes

b. Salt addition – fresh water:

Low salt dosing: ice is very dry and breaks in to small pieces; the machine becomes noisy and the ice breaks before the scraper arrives at the right position.

Mechanical stress increases on the shaft with potential intervention of gearmotor overload protection device, and possible damage to the bushes.

High salt dosing: ice is very soft and not really sub-cooled; there are areas where the ice did not detach; blocking the shaft.

To rectify the problem it is suggested that salt is

Service manual

added manually or with pump system.

Automatic salt feeder pump: MPS

03 07 PRED (IP65)

Electrical supply 230V/50-

60/1 (198-242 VAC) – Do not install directly on inductive load – provide electrical contactor. The pump should be protected by a fuse 230VAC/630mA

16W.

The water supply pipe sends the brine (solution of water and Sodium Chloride-NaCl) directly into the water reservoir through the injection valve.

Suction pipe should be placed in the brine tank together with the level control probe and the water drain.

Between water tank base and salt feeder pump the difference in level should not be more than 150 cm.

Operation/connections: connect transparent suction pipe to suction link (bottom valve on pump body) taking care to connect the pipe before the metal ring and pipe-stop; then connect the cone to the end. Check the valve O-ring and tighten the metal ring by hand. Place the suction filter on the water tank bottom. Suction pipe has to be short and straight to avoid bending that can prevent the pump working correctly.

The pump body has a manual venting valve. To prime the pump proceed as follows:

Place one side of the transparent pipe onto the valve pipe connector and the other side into the brine tank. Turn the handle on the pump body anticlockwise to open the valve.

Start the pump and turn the flow to 50%, the air in the pump body will be pushed by the membrane out through the valve. Once the air is removed and the brine flows from the valve, close the valve.

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To help with the priming if the brine solution is very concentrated, remove the air from the valve pipe with a 20 cc syringe after having started the pump and opened the valve.

The feeder pump is provided with a level alarm. When the brine falls below the minimum level, a red LED will light and the pump will stop.

The dosage is constant, with the possibility of modifying the flow rate from zero to 100%.

The front panel handle allows modification of the electronic system. It is advisable not to adjust the pump flow from 0 to 10% because this may cause an irregular flow rate.

The bottom part of the filter should be cleaned once a year but if there are crystals present, it is suggested that cleaning should be carried out more frequently.

WATER/BRINE TANK

To avoid saturation of brine do not add more than 30% of salt by weight.

As adjustment of the pump regulates the brine flow rate it is possible to meet the majority of customers’ requirements in respect of ice hardness and temperature. b2. manual dispenser pipe in Plexiglas: compressed salt tablets should be inserted and the hole at the bottom of the pipe should be gradually enlarged

until the correct dosage is reached, this depends on the water hardness.

NOTE: When the machine is stopped for a long period, the Plexiglas pipe

should be removed to avoid re-starting with increased concentration of salt.

This may lead to a formation of ice that is too soft and could block the

ice-breaker. b3. manual dispenser drawer with double basin: add salt to the external basin;

regulate the flow of water until the desired condition is achieved.

With sea water machines it is not necessary to use these methods.

If a variation in the quality of the ice (temperature) is required, it is not necessary to make alterations to the refrigerant system, it is enough to close the last holes in the distributor

(closest to the ice-breaker) thereby obtaining a greater sub-cooling surface.

However, on all machines, the opening of the thermostatic valve or damper can be regulated to alter the expansion temperature for a greater or lower sub-cooling of the ice.

If the ice production is too low, proceed as follows:

- from the inspection window check the frosting on the evaporator surface if this is not complete, open the thermostatic valve to increase the quantity of refrigerant

- re-check the level of frosting, proceeding as above until maximum production is reached.

- if necessary add more refrigerant (sight glass with presence of bubbles)

If you wish to use the ice machine to obtain a daily amount which is lower than its capacity, it is advisable not to alter the refrigerant system but to stop the machine when the required amount of ice has been produced (timer or manual operation by the operator).

Only in cases when the reduction has to be referred to the hourly production is it advisable to make alterations to the refrigerant circuit, reducing the refrigerant power of the compressor (partialisation or variation of a number of turns) and at the same time reducing

Service manual

the quantity of water which flows over the evaporator surface (it is sufficient to close some holes of the water distribution channel).

The stopping of the production can be done at any time without experiencing problems, providing the time is less than 10-15 minutes. If however, the machine needs to be stopped for over an hour, it is necessary to empty the gas contained in the evaporator cylinder by using the pump-down facility.

A problem may occur when the machine is off for a long period and the temperature of the room where the machine is installed drops below 0°C. In such a case, it will be necessary to empty the water reservoir and all associated piping from the water supply, alternatively heat the area where the machine is installed.

N.B. After 48 hours of working, it is advised that you substitute/clean the suction line filter in order to remove any oxidisation from brazing/welding or impurities that were present in the systems components.

Water quality varies from area to area.

It is recommended that a chemical analysis is carried out to ensure that correct cleaning/filtering/feeding systems are installed to prolong equipment life.

SALT DOSAGE gr. NaCl in 24h (t.water +15°C)

Model

EVE 200/201

EVE 300/301

EVE 400/401

EVE 650/651

EVE 800/801

MIN.

90

130

200

300

400

MAX.

210

320

430

700

850

EVE 1000/1001

500 1.100

EVE 1300/1301

600 1.400

EVE 1500/1501

24

800 1.700

EVE 2400/2401

1.200 2.600

SCRAPING ROLLER

It is advisable to check that the position of the scraping roller corresponds to the original position during assembly. Its distance from the wall of the cylinder must be 0,4 mm, at room temperature of approximately 20°C.

The roller must never touch the surface of the evaporator, contact will damage the

surface.

The adjustment of this distance is achieved by loosening the bolts that keep the box supports fixed, (positioned on the upper and lower part of the roller holder arm) and by moving the roller until it reaches the required distance. After carrying out the adjustment, ensure that the roller does not move whilst retightening the fixings.

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Service Manual

GEAR REDUCER PROTECTION – RM4JA32

-

Gear reducer of the rotating shaft

Electrical supply: 400/50/3 the

measuring relay (over current protection) is supplied with

! the machine, to protect the gear reducer and shaft.

The control relay (control RM4JA32) measures the current on the power supply to the motor and controls its operation (see electrical circuit diagram).

1

2

3

4

Dim. 45x78 mm

In order to avoid an excessive formation of ice before the restart, the measuring relay has to close down the water inlet and refrigerant inlet.

The current relay (gear-motor protection), has to be installed as follows:

A1-A2 electrical supply 24~240V

C+B1 supply phase drive-motor (EVE201-301-401-651-801)

C+B2 supply phase drive-motor (EVE1001-1301-1501-2401)

15 +18 supply relay with manual restart for plant control

SET UP:

1) Current absorbed in normal working conditions increased by 5%;

2) Hysteresis = calibration 15%

3) Timer = calibration 50%

4) Motor function/delay = calibration to >1 sec

R22

Service Manual

SET-UP and WORKING DATA

EVE 200

AS

(Bitzer)

EVE 300

AS

(Bitzer)

EVE 400

AS

(Bitzer)

EVE 650

AS

(Bitzer)

EVE 800

AS

(Bitzer)

EVE 1000

AS

(Bitzer)

EVE 1300

AS

(Bitzer)

EVE 1500

AS

(J&Hall)

EVE 2400

AS

(Bitzer)

Working conditions

Working conditions

Working conditions

Working conditions

Working conditions

Working conditions

Condenser

Charge

Charge

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

General Electrical supply

High pressure

Low pressure

Power installed kVA

Current consumption A

Air flow m

3

/h

Oil

Refrigerant

Oil differential pressure switch

Low switch

16-17 16-17 16-17 16-17 16-17 16-17 16-17 16-17 16-17

0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8

2-4 2-4 2-4 2-4 13-15 13-15 13-15 13-15 13-15

54,0 125,0 162,0

10.200 16.960 15.240 19.140 30.480 38.280 61.500 57.400 110.500

0,8 0,8 0,8 0,8 - - - 1 / 2,5 -

22 22 22 22 22 22 22 22 22

0 0 0 0 0 0 0 0 0 pressure - - - - 1,5 1,5 1,5 1,5 1,5

Timer shaft, pump, water level

Timer S/T or PW

Timer flow switch

Timer oil level

3’

-

-

-

3’

-

-

-

3’

-

-

-

3’

-

-

-

3’

1

10

10”

3’

1

10

10”

3’

1

10

10”

3’

3

-

10”

3’

1

10

10”

Thermostat oil – 1°step

Thermostat oil – 2°step

Thermostat oil – 3°step

Voltage limiter – 1

Voltage limiter – 2

Current limiter/shaft – 1

Current limiter/shaft – 2

Current limiter/shaft – 3

Current limiter/shaft – 4

-

-

-

+10

-10

15

50

>1

-

-

-

-

-

-

-

-

-

40

50

80

40

50

80

40

50

80

40

50

80

40

50

80

+10 +10 +10 +10 +10 +10 +10 +10

-10 -10 -10 -10 -10 -10 -10 -10

15

50

>1

15

50

>1

15

50

>1

15

50

>1

15

50

>1

15

50

>1

15

50

>1

15

50

>1

26

Rev. 10/05

Service Manual

R404a

SET-UP and WORKING DATA

EVE 200

AS

(Bitzer)

EVE 300

AS

(Bitzer)

EVE 400

AS

(Bitzer)

EVE 650

AS

(Bitzer)

EVE 800

AS

(Bitzer)

EVE 1000

AS

(Bitzer)

EVE 1300

AS

(Bitzer)

EVE 1500

AS

(J&Hall)

EVE 2400

AS

(Bitzer)

Working conditions

Working conditions

Working conditions

Working conditions

Working conditions

Working conditions

Condenser

Charge

Charge

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

Set-up

General Electrical supply

High pressure

Low pressure

Power installed kVA

Current consumption A

Air flow m

3

/h

Oil

Refrigerant

Oil differential pressure switch

Low switch

16-17 16-17 16-17 16-17 16-17 16-17 16-17 16-17 16-17

0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8 0,4-0,8

2-4 2-4 2-4 2-4 13-15 13-15 13-15 13-15 13-15

16,0 22,0 30,0 51,0 70,0

10.200 16.960 15.240 19.140 30.480 38.280 61.500 57.400 110.500

0,8 0,8 0,8 0,8 - - - 1 / 2,5 -

22 22 22 22 22 22 22 22 22

0 0 0 0 0 0 0 0 0 pressure - - - - 1,5 1,5 1,5 1,5 1,5

Timer shaft, pump, water level

Timer S/T or PW

Timer flow switch

Timer oil level

3’

-

-

-

3’

-

-

-

3’

-

-

-

3’

-

-

-

3’

1

10

10”

3’

1

10

10”

3’

1

10

10”

3’

3

-

10”

3’

1

10

10”

Thermostat oil – 1°step

Thermostat oil – 2°step

Thermostat oil – 3°step

Voltage limiter – 1

Voltage limiter – 2

Current limiter/shaft – 1

Current limiter/shaft – 2

Current limiter/shaft – 3

Current limiter/shaft – 4

-

-

-

+10

-10

15

50

>1

-

-

-

-

-

-

-

-

-

40

50

80

40

50

80

40

50

80

40

50

80

40

50

80

+10 +10 +10 +10 +10 +10 +10 +10

-10 -10 -10 -10 -10 -10 -10 -10

15

50

>1

15

50

>1

15

50

>1

15

50

>1

15

50

>1

15

50

>1

15

50

>1

15

50

>1

Service Manual

VIII. CLEANING, MAINTENANCE and REPLACEMENT PROCEDURES

Maintenance is minimal, but should be carried out regularly, paying attention to any abnormalities, thereby avoiding small malfunctions becoming major break-downs.

Maintenance is as follows:

1. check the distance of the scraping roller and scraping blade to wall of the evaporator and check the two bushings, adjust/replace as necessary.

2. cleaning of the filter with compressed air. Normally dirty filters lead to a shut-down of the machine, caused by an intervention from the control system

3. drain the evaporator of oil. First stop the system and empty the machine of the refrigerant liquid, wait a few hours, to allow the oil to warm up, and then open the release tap.

This operation gives excellent results, if repeated several times at hourly intervals.

The accumulation of oil in the evaporator can over time, lead to poor machine performance

(production decrease), leave a deposit on the level regulator (FTL), thermostatic and other devices, with consequent malfunctions.

4. replacement of the ice-breaker shaft bushing (advised once a year)

5. Cleaning

It is advisable to clean all parts that come into contact with water, at least once a

year (internal surfaces, water distributor, piping, pump and filter).

If the water is extremely impure and very calcareous, it may be necessary to carry out

cleaning more regularly

Use Scotsman CLEANER diluted in warm water (30-35°C), in the following quantity:

1 part water to 3 parts cleaner

Allow only the pump and reducer to work for a minimum of 30 minutes, maximum 2

hours, depending on amount of contamination

Once the cleaning stage has come to an end, circulate water only for 15-20 minutes

to rinse the machine and remove traces of cleaner.

6. Check and unblock obstructed holes in the water distributor

8. Clean the condenser air/water cooled twice a year if possible

9. Verify working conditions (pressures and electrical consumption) each 3-4 months

10. Check oil level compressor

11. Safety pressure valve does not guarantee a double intervention; in case the valve has opened it is necessary to replace it

12. For compressor maintenance please refer to manufacturer service manual

28

Service Manual

a) REPLACEMENT OF GEAR REDUCER and MOTOR

To replace gear reducer proceed as follows: a. disconnect/switch off the electrical supply for the general circuit b. disconnect the electrical cables from the gear-reducer c. remove the nut and locknut from the machine’s rotating shaft d. remove the four screws from the gear-reducer cover e. with an extractor remove the gear reducer from the rotating shaft f. fit the new gear reducer by reversing the procedure g. when starting the machine check that the shaft is rotating in the direction indicated by the arrow (anti clockwise)

The oil used in the reducer is "long life" and it is not expected that it will have to be changed during the life of the reducer; in cases of accidental spillage it is standard practice to re-use it. If this is not possible, it is advisable to completely replace it with another similar type of oil. Each producer of lubricant has a comparison table and any synthetic oil with 220-320 grade can be used.

AGIP TELIUM OIL SC320

SHELL TIVELA OIL SC320

KLUBER SYNTHESO D 200 EP

FINA GIRAM S320

ESSO GLICOLUBE RANGE 220

b) WATER PUMP REPLACEMENT

Disconnect/switch off electrical supply to pump circuit. Disconnect the electrical cable from the connector block, disconnect the copper pipe, the filter and coupling that enter the water reservoir (a); remove the pump cover unscrewing the bolts, (b); remove the pump from inside the reservoir. Replace the pump with a new one, in reverse order.

b a b

Service manual

c) REPLACEMENT of ICE-BREAKER BUSH and SCRAPER

Stop the scraping roller in a position that enables you to access it from the upper

access area.

Fig.1

Slacken the two socket head screws behind the icebreaker support

(fig.1).

Slacken the adjusting

Fig.2

screw

(fig.2)

Remove the support, place in a vice and with a hammer and plastic cylinder, apply pressure until the bush is removed.

Fig.3

Fig.5

Insert the new bush with a wooden cylinder or similar to distribute the mechanical pressure during the forced insertion.

(fig.3/4).

Re-position the upper support fixing it loosely with the socket head screws. Before unscrewing the lower support, the shaft should be secured with an eyebolt (fig.5) so that it does not fall.

Fig.4

Repeat the same operation as used for the upper support, tighten all screws

Check that the roller rotates freely

(without coming into contact with the evaporator); if it is off-axis, proceed by loosening the adjustment screws and adjust as required, (see start-up and adjustment).

For the replacement of the ice-breaker follow the same procedure. Slacken the screws on the upper support; remove the roller and the upper and lower supports. The lower support is accessible from the ice outlet.

Lower support registration screw lower support - socket head fixing screws

30

Rev. 11/05

Service Manual

d) REPLACEMENT OF THERMOSTATIC VALVE / FTL

Before replacing the part, check that there is no refrigerant in the evaporator.

Proceed with the necessary operations in order to bring the valve / FTL to a state of good working order.

!

Maintenance has to be done by qualified personnel and complying to the standards of the country where the machine is installed.

e) REPLACEMENT OF DEFLECTOR

The lower deflector (a) is fixed onto the V support arms of the rotating shaft and the scraper with two M8 screws (b). The disassembly of the deflector should be carried out from the lower part of the ice outlet by unscrewing the two screws. This will allow removal of the deflector and fitting of replacement.

b a a f) REPLACEMENT DEFLECTOR and DRIP TRAY

The deflector is manufactured in two parts fixed together with rivets (a).

The deflector brush (b) is placed in contact with the deflector and fixed with M8 screws to the V arm of the rotating shaft.

a b

Service manual

5 mm

The drip tray is placed few millimetres above the deflector to collect water not frozen on the cylinder surface.

It is very important that this component is draining the water toward the external side of the machine (water reservoir) .This position must be re-checked every time the drip tray is removed/replaced.

Dismantling of deflector has to be carried out from the lower part/ice chute, by removing the rivets and the two parts of the deflector.

A small drill or flexible drive will assist with the removal of the rivets, especially for the small machines: EVE201-301-401.

Positioning a new deflector has to be carried out by positioning the two parts, then fix together with rivets and finally fix on to the base. Leave a 5mm space between base and deflector.

g. REPLACEMENT SHAFT BUSHING

The lower shaft bush (A) is positioned on the outside of the shaft support base.

The disassembly procedure is carried out from below the machine by unscrewing the 4 fixing screws, to extract the bush from this lower part, use a pipe wrench or similar and turn the bush in an anti-clockwise direction.

A

32

Rev. 11/05

Service Manual

IX. CLEANING and MAINTENANCE CONDENSING UNIT

1. CONDENSER/OIL COOLER: cleaning and fans replacement

Remove manually thick dust presence than proceed with a bristle brush or compressed air, to clean the fins completely.

For water cooling it is necessary to remove lime-scale and/or other solid parts by de-scaling and water pressure.

Before replacing the fan motor always isolate the electrical supply from the machine.

!

Safety first!

For a correct and secure installation use the right tools and protection.

Open the electrical box and disconnect the supply wiring. Loosen the fixing screws of the fan condenser. Take away the fan kit then remove the blade from the motor.

At this point replace the faulty motor with the new one following the reverse procedure.

2. COMPRESSOR (see attached service manual)

Please follow the manufacturer instructions

!

Safety first!

For a correct and secure installation use the right tools and protection.

3. LIQUID RECEIVER: safety pressure valve

When the liquid receiver is operating in normal conditions, does not need maintenance.

Do not attempt to open the receiver when under pressure. Accessories and modification on the liquid receiver has to be approved by the manufacturer.

In case of replacement it is necessary to empty it and drop the pressure to atmospheric level. Any residual oil must be collected and disposed of by specialised personnel.

!

WARNING! Safety pressure valves do not need maintenance.

Cover or seal removal are not permitted; this will result in the manufacturers warranty being null and void.

Safety valve inspections are restricted to authorized companies and conformity to specific standards in force in the country of installation.

Service manual

4. FILTERS: oil, suction and liquid line

The cartridge filters can be easily replaced..

Close the check valves before and after the filter; unscrew the screws fixing the filter’s closure flange. Unscrew the cover of the coupling flange, than remove the basket, the spring and the plastic cover. Remove the screw to unlock the cartridge.

Take away the cartridges and gaskets. Fit the new cartridges and follow the reverse procedure.

5. VALVES: SOLENOID, THERMOSTATIC, CHECK, NON RETURN

Check valves and valves do not need maintenance.

Do not over tighten the valve shaft.

When replacing welded valves cover it with a wet rag to avoid damage to the gaskets/washers, when possible remove these parts before welding.

Replacement of solenoid valve coil: remove the locknut and the fixing screw. Remove the wiring from the terminal board after having isolated power supply. Install the new coil following the reverse procedure.

34

Rev. 11/05

Service Manual

6. ELECTRICAL CONTROL PANEL: wiring diagram (reciprocating compressors)

GENERAL POWER 0/1: when it is in position “1” (ON) the machine is energized and the crank- case heater warms the compressor oil

VOLTAGE ON (white lamp): the machine is energized

EMERGENCY PUSH-BUTTON (STOP): push this push-button to stop immediately the machine, for emergency needs

RUN (push-button START): when oil compressor has reached the temperature and water supply is connected, push this button to start the machine. The machine will operate as follow:

• open solenoid valve

• start rotating shaft/gear-motor and water pump

• start compressor and condenser fans

ON CYCLE (green lamp): the machine is working

STOP (push-button): push this button to stop the machine normally.

The machine will operate as follow:

• solenoid valve closes refrigerant supply and starts PUMP DOWN phase (vacuum process)

• when PUMP DOWN phase has ended, rotating shaft and water pump still continue working to clear the evaporator of any ice residue; this function is regulated by a timer with a delay of average 5 minutes. Once this time is passed, gear-motor and water pump stops.

• The machine at the moment is ready for a new production cycle

STOP CYCLE (red lamp): the machine is stopped manually by operator

WATER PROBE RESET (push-button and blue lamp): in case of low water level in the water distributor, the machine stops and the blue lamp is illuminated. Verify water supply and pressing of the push-button (RESET) the machine restarts.

ROTATING SHAFT RESET (push-button and blue lamp): in case of gear-motor overload, the relay measuring the over-current stops the drive-motor and the rotating shaft illuminating the blue lamp. Verify that the ice scraper and the scraper blade are free from ice blocks and/or obstacles than proceed to restart pressing the push-button (RESET)

THERMAL PROTECTION (red lamp): should a fault occur with compressor, condenser fan, water pump, gear-motor this lamp is illuminated

THERMISTOR PROTECTION (red lamp): when compressor temperature rises to its pre-set limit this protection will stop the machine and the lamp is illuminated

LOW OIL PRESSURE (red lamp): when oil pressure drops under pre-set level, the machine will stop and the lamp is illuminated

DIGITAL VOLTMETER/AMMETER measures Voltage, Amp current, Electrical supply

Service manual

Control Panel/Electrical wiring (reciprocating compressors)

36

Rev. 11/05

Service Manual

Service manual

7. ELECTRICAL CONTROL PANEL: wiring diagram (screw compressors)

GENERAL POWER 0/1: when it is in position “1” (ON) the machine is energized and the crank case heater warms the compressor oil

VOLTAGE ON (white lamp): the machine is energized

EMERGENCY PUSH-BUTTON (STOP): push this push-button to stop immediately the machine, for emergency needs

RUN (push-button START): when oil compressor has reached temperature and water supply is connected, push this button to start the machine. The machine will operate as follow:

• open solenoid valve

• start rotating shaft/gear-motor and water pump

• start compressor and condenser fans

ON CYCLE (green lamp): the machine is working

STOP (push-button): push this button to stop the machine.

The machine will operate as follow:

• solenoid valve closes refrigerant supply and starts PUMP DOWN phase (vacuum process)

• when PUMP DOWN phase has ended, rotating shaft and water pump still continue working to clear the evaporator of residual ice; this function is regulated by a timer with a delay of average 5 minutes.

Once this time is passed, gear-motor and water pump stops.

• The machine at the moment is ready for a new production cycle

STOP CYCLE (red lamp): the machine is stopped manually by operator

WATER PROBE RESET (push-button and blue lamp): in case of low water level in the water distributor, the machine stops and the blue lamp is illuminated Verify water supply and press the push-button (RESET), the machine restarts.

ROTATING SHAFT RESET (push-button and blue lamp): in case of gear-motor overload, the relay measuring the over-current stops the drive-motor and the rotating shaft illuminating the blue lamp. Verify that the ice scraper and the scraper blade are free from ice and/or obstacles then proceed to restart by pressing the push-button (RESET)

THERMAL PROTECTION (red lamp): when a fault occurs with compressor, condenser fan, water pump, gear-motor this lamp is illuminated

COMPRESSOR FAILURE (push-button and red lamp): when compressor temperature rises to its pre-set limit (discharge gas and winding) this protection will stop the machine and the lamp is illuminated

LUBRICATION ALARM (red lamp): when oil return is low, flow or oil differential pressure switches are activated, the machine will stop and red lamp is illuminated

LOW OIL PRESSURE (red lamp): when oil pressure drops below pre-set level, the machine will stop and the lamp is illuminated

SOLENOID VALVE ON (green lamp): when solenoid valve is energized (open) the lamp is illuminated

DIGITAL OIL THERMOSTAT it is measuring the oil temperature; the machine will not run until the minimum oil temperature has been reached

38

Rev. 11/05

Service Manual

DIGITAL VOLTMETER/AMMETER measures Voltage, Amp current, Electrical supply

Control Panel/Electrical wiring (screw compressors)

Service manual

40

Rev. 11/05

Service Manual

X. FAULT ANALYSIS

Following is a list of the most common faults; for each fault the probable cause is indicated and the operations to carry out on the system’s components to achieve normal working.

a. LACK OF ICE:

Ice production will normally only stop whilst the system is operational due a fault associated with either a reduction in refrigerant at the evaporator or excessive discharge temperature/pressure. This will be indicated by either a low suction pressure or high discharge pressure. It is possible however, that the cause may be of a lack of water in the system as the electronic controls would have stopped the equipment (LAND version).

A reduction in refrigerant can be caused by a faulty FTL (check the electrical supply) or a fault on the thermostatic valve that controls the flow of liquid.

In either case the repair is simple: i.e. replace the faulty component (solenoid coil, capillary, FTL).

To check if the FTL is faulty, connect a tester (Ohm resistance meter) onto contacts 1 and

3; immerse the FTL in a bowl of water and see if by changing its position in respect to the water level, the tester shows a variation in the continuity (ON/OFF).

b. NON UNIFORM FREEZING

There are various possible solutions: b1. Vertical lines: the water is badly distributed by the distributor (blocked holes, dirty water filter, etc.).

For this repair these components should be unblocked or cleaned. b2. Lack of ice in the upper part of the cylinder: the flow of refrigerant is insufficient

Adjust the regulation tap or the thermostatic valve and if still insufficient add more refrigerant. b3. Discoloured, thinner ice: there is oil in the evaporator cylinder

Therefore it is necessary to remove it by using the appropriate release tap (see cleaning and maintenance) b4. Excessive thickness of ice: results in an irregular movement of the scraping roller and the rotating shaft. This is caused by too much refrigerant entering the evaporator, adjust/replace expansion valve or check operation of FTL Another cause is the speed of the rotating shaft, check operation. c.

REDUCED PRODUCTION c1. It is mainly caused by a reduction in thermal exchange a dirty FTL or thermostatic

valve usually due to the presence of oil in the evaporator. Remove the oil as described

in cleaning and maintenance. c2. Insufficient input of refrigerant liquid.

Service manual

d) ICE WHICH IS DIFFICULT TO BREAK:

Check the distance between the scraping roller and scraping blade and adjust as required, if the problem persists add some salt to the water, see start-up and adjustment.

e) LIQUID RETURN TO THE COMPRESSOR:

The evaporator is being overfed; it is necessary to adjust the regulation tap (FTL) or the thermostatic valve.

This could also occur when the machine has not been shut-down according to the correct procedure.

42

Rev. 11/05

Service Manual

XI. EXPLODED VIEWS and PARTS LIST

Pos. component

EVE200 – 300 - 400 q.ity Pos.

2

3

5

6

7

9

11

Evaporator cylinder:

Upper cover

Rotating Shaft

Scraping roller – ice-breaker scraping blade

Deflector kit + drip tray

Small-end bushing rotating Shaft

13

14

Scraping roller bushing

Scraping roller register screws

15

16

Raceway/water distribution ring

Vertical water distributor

17 Water distributor ring support board versions

18 Scraping roller / scraping blade door brackets

19

21

Gear reducer

Water pump

22 Rotating shaft nut and lock nut tightening

23

24

25

Solenoid valve

Salt door tube

Water accumulation reservoir hatch

2

2

1

1

-

-

-

1

1+1

1

1

1

1

1

1

1

1

1

1

36

37

38

39

40

41

43

46

49

50

51

52

28

29

30

31

32

33

34

component

Internal screw base

Ice outlet hole

Water drawer

Upper cover inspection hatch

Water and salt reservoir

Water accumulation reservoir

Water regulation tap

Water filter

Delivery piping to the distributor

Delivery piping to the salt drawer

Oil release tap

Salinity regulation tap

Overflow piping attachment

Electrical motor

Drip pan thermostatic valve or electrical level regulator FTL

Water level probe

Shaft Drip tray

Brush deflector

q.ity

-

1/2

-

-

1

-

1

1

1

-

1

1

1

1

-

-

-

1

1

1

Service manual

Pos.

EVE650 – 800 – 1000 – 1300 – 1500 - 2400 component q.ity Pos.

component

2

3

5

6

7

9

11

Evaporator cylinder:

Upper cover

Rotating Shaft

Scraping roller – ice-breaker scraping blade

Deflector kit + drip tray

Small-end bushing rotating Shaft

13

14

15

Scraping roller bushing

Scraping roller register screws

Raceway/water distribution ring

16 Vertical water distributor

17 Water distributor ring support board versions

18 Scraping roller / scraping blade door brackets

19 Gear reducer

21 Water pump

22 Rotating shaft nut and lock nut tightening

23

24

25

Solenoid valve

Salt door tube

Water accumulation reservoir hatch

1

-

-

-

2

2

1

1

1+1

1

1

1

1

1

1

1

1

1

1

49

50

36

37

38

39

40

41

43

46

28

29

30

31

32

33

34

Internal screw base

Ice outlet hole

Water drawer

Upper cover inspection hatch

Water and salt reservoir

Water accumulation reservoir

Water regulation tap

Water filter

Delivery piping to the distributor

Delivery piping to the salt drawer

Oil release tap

Salinity regulation tap

Overflow piping attachment

Electrical motor

Drip pan thermostatic valve or electrical level regulator FTL

Water level probe

q.ity

1

-

-

1/2

-

-

1

1

1

1

-

-

1

1

-

-

1

1

44

Rev. 11/05

Service Manual

11

10

3

2

5

1

6

8 9

4

13

14

7

12

1) COMPRESSOR

2)

3)

4)

OIL COOLING GROUP

AIR/WATER COOLING GROUP

LIQUID RECEIVER GROUP

GROUP

6) GAUGES

7)

9) LIQUID

10)

11)

12)

ELECTRICAL CONTROL BOARD GROUP

8) OIL

FILTER

OIL SEPARATOR GROUP

THERMOSTATIC AND SOLENOID VALVE

SALT FEEDING PUMP

FILTER

14) EVAPORATOR

Service manual

MANUFACTURING PLANT AND HEAD OFFICE

Linea.Net Milano Srl

55045 Pietrasanta (LU) Italy

Via 1°maggio 10A

Tel. +39 0584 793938

Fax +39 0584 791462

Email: [email protected]

Email: [email protected]

http: www.scotsman-ice.it

46

Rev. 11/05