background image

Repairs of electrical parts and refrigeraion circuit 

Trouble shooting

only by qualified technician

Malfunction

Cause

Remedial Action

Machine operates - but no ice production

Freezing unit and

loss of refrigerant

check refrigeration circuit (bubbles in 

refrigeration unit work

sight glass), eliminate leakage, evacuate
circuit, refill refrigerant

Freezing unit works,

*

no water in water chamber

see water level control  (page 5)

refrigeration unit does not

*

motor cut-out defective

 check / replace

*

compressor defective

 check / replace

Ice jam in ice outlet

Defective light barrier

check (see page 6)

or ice hose

consult ZIEGRA

Decrease of ice production

*

Condenser soiled or

clean with brush or compressed air, never

poor ice quality

insufficientcooling water flow

with a wire brush. Watercooled machines:
bottle brush, antilime agent, clean water
filter. Open further the water control valve.

*

ambient temperature too high

machine must not be placed in the sun or
too warm ambience. Improve ventilation.

*

expansion valve misadjusted

adjust evaporation temperature as 
indicated. Check thermal feeler pipe
and contact at evaporator outlet.

*

insufficient amount of refrigerant,

remove leak, evacuate circuit, refill

bubbles in sight glass

with indicated quantity of refrigerant

*

lime deposit on auger or cylinder

clean freezing unit  (see page 8)

*

machine has switched off

also consider possible water shortage 

in between times

or malfunction with a central refrigeration
plant.

*

capacity control misplaced

Shut the capacity control. Adjust over-
heating of the machine according to the
data sheet. Adjust capacity control at
1 K below evaporation temperature.

Cracking noise  

cylinder bearing defective

 replace

in freezing unit

Ice comes out of machine

After leaving the cylinder,  the ice

check that there are no small edges or

in pressed form

is pressed due to wrong installation

bends. Amend.

("sausages")

of the ice discharge tube, the

see page 2

tube extension of the outlet 
or due to sharp bends.

*

V-belt loose or defective

tighten / replace (see page 4 - V-belt)

loud squeaking noise

*

lime deposit on auger or cylinder

Clean freezing unit  (see page 8)

strong vibrations
freezing unit  freezes up

*

air bubble in hose between

remove air bubble

water chamber and freezing unit

7

Содержание UBE 1.500

Страница 1: ...e quality Miscellaneous 7 Cleaning of freezing unit 8 Wiring diagram attached Cooling circuit General installation advice Assembly Instruction Freezing Unit Spare parts list Subject to technical modif...

Страница 2: ...tating auger does not form part of the refrigeration circuit Therefore leakages in the refrigeration system caused by rotating parts cannot occur The ideal ice temperature is 0 5 C ZIEGRA Chip ice has...

Страница 3: ...the machine Tighten all electrical connections in the control and at water temperatures above 15 C resp 25 C panel as they may have loosened during the production capacity may decrease transport Cran...

Страница 4: ...s full This light barrier has been chosen by us for these 10 Phase sequence Relay particular conditions Please contact us The phase sequence relay switches off the machine if the phases are not connec...

Страница 5: ...if necessary V belts check replace if necessary A loose V belt does not transfers the load correctly on the auger This will overload the freezing unit Ice hose and water retainer calcified clean or re...

Страница 6: ...eck connection and fuses Fuses blow up Check Intermittent contact Check electrical connections also in control panel Water pressurestat or readjust or replace Water level control defective readjust or...

Страница 7: ...cooled machine insufficient water pressure increase water pressure to min 2 bar condenser soiled clean condenser with bottle brush hot water and antilime agent clean water filter water or condensing p...

Страница 8: ...ust evaporation temperature as indicated Check thermal feeler pipe and contact at evaporator outlet insufficient amount of refrigerant remove leak evacuate circuit refill bubbles in sight glass with i...

Страница 9: ...unit into a container o Connect a hose of appr 80 cm with funnel at the water inlet of the freezing unit o Mix cleaning agent with hot water For each freezing unit 1 2 bottle agent in 1 litre water o...

Отзывы: