background image

in operation to circulate the water in order to rinse
the entire water system.

10. Do it twice so to be sure no more traces of
descaling solution remains into the sump.

11. Pour on the upper side of the evaporator
platen fresh water with a capfull of disinfectant
solution then turn again the machine in cleaning
mode so to sanitize all the water system for
approx. 10 minutes.

NOTE.

 Do not mix descaling with disinfectant

solution to avoid the generation of a very
aggressive acid.

12. Flush out  the sump reservoir  then  turn  the
program  selector  on  RESET/HI TEMPERATU-
RE
 position and immediately afterward to
FREEZING OPERATION.

NOTE. 

By setting the selector on RE-SET

first and then to FREEZING OPERATION
the ice maker will perform the 5 minutes
WATER FILLING phase i.e. the water inlet
solenoid valve opens to allow the incoming
water to rinse again the water system and to
properly fill-up the sump reservoir for the
next freezing cycle.

13. Place again the evaporator cover and the
unit service panels.

14. At completion of the freezing and harvest
cycle make sure of proper texture and clearness
of the ice cubes and that, they do not have any
acid taste.

ATTENTION. In case the ice cubes are
cloudy-white and have an acid taste, melt
them immediately by pouring on them
some warm water. This to prevent that
somebody could use them.

15. Wipe clean and rinse the inner surfaces of
the storage bin.

REMEMBER. 

To prevent the accumulation

of undesirable bacteria it is necessary to
sanitize  the  interior  of  the  storage  bin
with an anti-algae disinfectant solution
every week.

WARNING. The Ice Machine Cleaner
contains Phosphoric  and Hydroxyacetic
acids.
These compounds are corrosive and may
cause burns if swallowed, DO NOT  indu-
ce 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

4.

Take 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 reservoir by removing the plastic
plug.

5.

Remove the evaporator cover then slowly

pour onto the evaporator platen the cleaning
solution. With the help of a brush dissolve the
most resistant and remote scale deposits in the
platen.

6.

Set the program selector head on

CLEANING/RINSING (Fig. 8).

NOTE.

 With the system in CLEANING/

RINSING mode the water pump is the only
component in operation to circulate the
cleaning solution in the entire water system.

7.

Let the unit to remain in the CLEANING/

RINSING mode for about 20 minutes then turn
the program selector on STAND BY again.

8.

Flush out the cleaning solution from the

sump reservoir then pour onto the evaporator
cavity two or three liters of clean potable water to
rinse the mold cups and the platen.
If necessary remove the water spray platen to
clean it separately as per step 3 of paragraph B.

9.

Turn again the program selector on

CLEANING/RINSING. The water pump is again

FIG. 8

Page 23

Содержание DX 40

Страница 1: ...DX 40 Service Manual Cod 71503041...

Страница 2: ...allation practice OPERATING INSTRUCTIONS Start up Operational checks OPERATING PRINCIPLES How it works Freezing cycle Harvest cycle Control sequence Component description ADJUSTMENT PROCEDURES Adjustm...

Страница 3: ...MIN 10 C 5 C 1 bar 10 ice making capacity 40 35 30 25 20 15 10 Kg 38 32 5 27 21 15 10 32 38 10 21 40 35 30 25 20 15 10 Kg 38 32 5 27 21 15 10 AIR COOLED MODELS WATER TEMPERATURE AMBIENT TEMPERATURE I...

Страница 4: ...hine specifications Cubes per harvest 24 medium A 15 C water temperature Electric power cons Kwh per 24 Hr Cond unit Finish Comp HP Stainless stell 3 8 15 Kg Dimensions HEIGHT 1720 mm WIDTH 380 mm DEP...

Страница 5: ...es freely 7 Check that the compressor fits snugly onto all its mounting pads 8 Use clean damp cloth to wipe the surfaces inside the storage bin and the outside of the cabinet GENERAL INFORMATION AND I...

Страница 6: ...e and the unit If water contains a high level of impurities it is advisable to consider the use of an appropriate water filter or conditioner WATER DRAIN The recommended drain tube is a plastic or fle...

Страница 7: ...ency serving him G INSTALLATION PRACTICE 1 Hand shut off valve 2 Water filter 3 Water supply line flexible hose 4 3 4 male fitting 5 Vented drain 6 Open trapped vented drain 7 Drain fitting 8 Main swi...

Страница 8: ...pressure below the Minimum value of 1 bar 14 psig 3 Any clogging situation in the water circuit like the inlet water strainer and or the flow control D At completion of the water filling phase 5minute...

Страница 9: ...ontrolthetem perature of its probe progressively rises to reach 4 5 C 40 F and at this point the ice machine restarts to initiate a new freezing cycle with the simultaneous extinguishing of the 3rd RE...

Страница 10: ...st to avoid to overfill the ice bucket when left in the dispensing compartment The yellow LED located beside the green one is lighted ON while the auger motor is energized NOTE The CUT IN RANGE OF THE...

Страница 11: ...reezes into ice the rest of it cascades by gravity into the sump assembly below for recirculation FREEZING CYCLE The hot gas refrigerant discharged out from the compressor Fig B reaches the condenser...

Страница 12: ...Page 11...

Страница 13: ...5 to 45 minutes the defrost cycle starts DIP SWITCH 1 2 3 4 5 6 7 8 9 10 Air Cooled ON OFF OFF OFF ON OFF ON ON ON OFF Water cooled ON OFF OFF ON OFF OFF ON ON ON OFF TAB A DIP SWITCH KEYS FACTORY SET...

Страница 14: ...s ON OFF Evaporator Sensor Ice Level Sensor HARVEST Water Filling Phase Electrical components Loads ON OFF Compressor Water Pump Fan Motor Air cooled only Hot Gas Valve Water Inlet Valve Water drain v...

Страница 15: ...OMPONENTS DESCRIPTION A EVAPORATOR TEMPERATURE SENSOR The evaporator temperature sensor probe locatedincontactwiththeevaporatorserpentine detects the dropping of the evaporator tempera ture during the...

Страница 16: ...S KEY MUST BE SET IN OFF POSITION ATTENTION The check up of the P C BOARD output must be performed in averyshorttimeinordertoavoidfrequent start and stop every few seconds of the electricalcomponentsw...

Страница 17: ...il 8 9 DELTA T C ON ON 1 OFF ON 1 5 ON OFF 2 OFF OFF 2 5 TAB D ICE LEVEL SENSOR CONTROL TEMPERATURE RANGE ACCORDING TO THE DIP SWITCH SETTING COMBINATIONS Locatedonthehotgasline thisvalveisenergized t...

Страница 18: ...on the front of the P C Board 2 Take note of the combination of the DIP SWITCH KEYS 3 4 5 6 and 7 and check the corrisponding length of freezing cycle 3rd phase as shown on Table C 3 Change the same D...

Страница 19: ...OTOR C COMPRESSOR MOTOR D PUMP E WATER INPUT EL VALVE F DEFROST EL VALVE G AUGER GEAR MOTOR H BIN TEMP PROBE I EVAPORATOR PROBE L ICE PHOTOSWITCHES M ELECTRONIC CARD O FAN PRESSURE SWITCH P ANTI STRIP...

Страница 20: ...MOTOR C COMPRESSOR MOTOR D PUMP E WATER INPUT EL VALVE F DEFROST EL VALVE G AUGER GEAR MOTOR H BIN TEMP PROBE I EVAPORATOR PROBE L ICE PHOTOSWITCHES M ELECTRONIC CARD O MAX PRESSURE SWITCH P ANTI STRI...

Страница 21: ...Fan motor doesn t run during Replace fan motor freezing Check for correct operation of pressure control Cut in at 10 bar 140 psi Hot gas valve open during freezing Replace hot gas valve Water inlet va...

Страница 22: ...more ventilation Overcharge of refrigerant Correct the charge Purge off slowly Capillary tube partially restricted Blow charge add new gas drier after evacuating system with vacuum pump Hot gas soleno...

Страница 23: ...hine and fan motor OFF on aircooledmodels cleancondenserusingvacuum cleaner whisk broom or non metallic brush 5 Check for water leaks and tighten drain line connections Pour water down bin drain line...

Страница 24: ...rage bin REMEMBER To prevent the accumulation of undesirable bacteria it is necessary to sanitize the interior of the storage bin with an anti algae disinfectant solution every week WARNING The Ice Ma...

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