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Page 20

Page 20

SECTION  VII

MAINTENANCE & CLEANING INSTRUCTIONS

GENERAL

The periods and procedures for maintenance

and cleaning are given as guides and are not to

be construed as absolute or invariable. Cleaning

especially will vary, depending upon local water

conditions and the ice volume produced and,

each icemaker must be maintained individually,

in accordance with its own particular location

requirements.

ICEMAKER

THE FOLLOWING MAINTENANCE SHOULD

BE SCHEDULED AT LEAST TWO TIMES PER

YEAR ON THIS ICEMAKER. CALL YOUR

AUTHORIZED SCOTSMAN SERVICE AGENCY.
1.

Check and clean optional water line strainers

or water purification system.
2.

Remove screws and top and front panel.

3.

Remove cover from water reservoir and

depress the float to ensure that a full stream of

water enters each reservoir.
4.

Check that the icemaker cabinet is level, in

side-to-side and front-to-rear directions.
5.

Check that the water level in water reservoir

is below the overflow and is level to correspond

20 m/m below the ice discharge opening.
6.

Clean water reservoir and interior of the

freezer assembly, using a solution of SCOTSMAN

Ice Machine Cleaner. Refer to CLEANING-

Icemaker.

NOTE

. Cleaning requirements vary

according to local water conditions and

individual user operation. Visual inspection

of the auger before and after cleaning will

indicate frequency and procedure to be

followed in local areas.

7.

When doubtful about refrigerant charge,

install refrigerant gauges on Service valves and

check gauge. See Nameplate for refrigerant

charge specifications at liquid line: will be 1.7 Bar

(24 PSI).
8.

Check drive motor operation:

Normal operating temperatures about 70

°

 which

is hot to touch. Check with Ammeter amps drawn

and make sure they are in the limits of Drive motor

windings.
9.

Check setting and function of all the pressure

controls also make sure that their corresponding

light will glow.

10. Inspect the top bearing in the ice breaker,

wipe clean of old grease and apply a coating of

food grade grease, SCOTSMAN P/N 263612.00

or equivalent.

11. Check for refrigerant leaks.

12. Check for water leaks. Pour water down

drain line to be sure that drain line is open and

clear.

13. Check the quality of ice. Ice should be

slightly wet when formed, but will cure rapidly to

normal hardness in the bin.

14. Check the bin thermostat control bulb, hold

ice on the control bulb of each system to test

icemaker shut-off.

NOTE

. The bin thermostat is factory se at

4

°

C differential and should keep the entire

icemaker system shut off  at least 10 minutes

in high ambient temperatures, longer in low

ambients temperature during normal

operation. Settings are 1,5

°

C CUT-OUT and

4

°

C CUT-IN.

15. Check gear box oil level through its sight

glass  every  6 months. Oil, on low speed section,

must  be  replaced every  25.000 hrs. Use

Syntetic Oil Shell Tivela SC320.

CLEANING

1.

Remove screws and the top, left and front

panel.
2.

Disconnect unit from power supply.

3.

Remove reservoir cover and block the float

in water reservoir.
4.

Drain the water reservoir and freezer

assembly using the drain tube attached to the

freezer water inlet. Return the drain tube to its

normal upright position and replace the end cap.

WARNING - SCOTSMAN Ice Machine

Cleaner contains Phosphoric and

Hydroxyacetic acids. These compounds

are corrosive and may cause burns. If

swallowed, DO NOT induce vomiting. Give

large amounts of water or milk. Call

Physician immediately. In case of external

contact flush with water. KEEP OUT OF

THE REACH OF CHILDREN.

Summary of Contents for MF 88

Page 1: ...2 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 SERVIC...

Page 2: ...Page 2 Page 2 TO BE USED JUST BY THE INSTALLER...

Page 3: ...om Unpacking and iInspection Location and levelling Electrical connection Water supply and drain connection Final check list OPERATING INSTRUCTIONS Pre start inspection Start up PRINCIPLES OF OPERATIO...

Page 4: ...n exceeding these limitations constitutes misuse under the terms of Scotsman Manufacturer s Limited Warranty resulting in a loss of warranty coverage We reserve the right to make product improvement a...

Page 5: ...IDTH 540 mm DEPTH 780 mm NET WEIGHT 250 Kg MF MFN 88 SPLIT MACHINE SPECIFICATIONS Basic electrical Refrigerant Drive Motor Ice Type 230 50 3N 2 65 Amps 1410 rpm 7050 Kcal hr R404a 8200 W 400 50 3N 5A...

Page 6: ...he left to right anf front to rear direction INTRODUCTION This manual provides the specifications and the step by step procedures for the installation start up operation and maintenance and cleaning o...

Page 7: ...at ice builds up in the chute Thermostat capillary tube is coiled behind the control box it must be routed to follow the ice chute or ice deflector and protrude for a certain extension beyond the ice...

Page 8: ...ed of the Time Delay Relay KT1 blinking the liquid valve opens 3 After two or three minutes of unit operation observe that flaked ice begins to drop out in the ice spout 4 Let the system operate for a...

Page 9: ...through the Ice breaker The flake ice into spout in diverted out through the ice discharge opening Once unit is electrically connected after 15 minutes starts the automatic and continuous icemaking pr...

Page 10: ...is reduced to below 0 3 bar 4 PSI The switch will automatically restart the icemaking process when the water pressure is increased to 1 bar 14 PSI EPR valve Evaporator Pressure Regulating Valve this v...

Page 11: ...set to cut out at 1 5 C and cut in at 4 C The Expansion Valveis FLICA mod AMVX 3 Press 3 bar Office 4 5 mm for R 404 A meters the refrigerant to the evaporator serpentine at 1 7 bar 25 PSI From s n 2...

Page 12: ...screws in the corresponding holes and tighten WARNING Be sure the electrical power supply and the water supply are OFF before starting any of the following REMOVAL AND REPLACEMENT procedures as a prec...

Page 13: ...or water seal should be removed by pulling out the bearing retainer from the bottom of freezer barrel You can heat the bearing retainer with a soft flame The bearing will drop out by itself 14 Remove...

Page 14: ...m the Water Reservoir Assembly 3 Remove two corbin clamps and two tubes from the bottom of the water reservoir assy and damp all water in them by bending them down in a pail 4 Unscrew and remove the s...

Page 15: ...emperature room temp 10 C 5th Warning light glows Wrong connection of the three Reverse two of them phase to the unit plug Short of one of the three phases Check for proper power supply 6th Warning li...

Page 16: ...ice Surrounging air temperature Correct or move unit to cooled above 40 C 100 F location Under or over charge of Re charge with proper refrigerant amount Closed TEV Adjust valve for correc refrigerant...

Page 17: ...electrical circuit of the MF MFN 88 The Wiring Diagrams in this Sections is Wiring diagram MF MFN 88 AS 400 50 3 N WARNING When conducting a conti nuity check of the MF MFN 88 1 Disconnect the main po...

Page 18: ...Page 18 Page 18 WIRING DIAGRAM MF MFN 88...

Page 19: ...Page 19 Page 19...

Page 20: ...res about 70 which is hot to touch Check with Ammeter amps drawn and make sure they are in the limits of Drive motor windings 9 Check setting and function of all the pressure controls also make sure t...

Page 21: ...e spout until the water reservoir is empty DO NOT allow the icemaker to operate with empty reservoir 9 Unplug again the unit 10 Flush out the remaining cleaning solution from freezer as per step 4 Was...

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