Bartscher Q150, Instruction Manual

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71503928/0 - rEV.00 01/2013
9. MAINTENANCE
9.1 PERIODICAL MAINTENANCE AND CLEANING
Cleaning and maintenance especially will vary, depending
upon ambient and use conditions.
In particular affect: hard water, ice volume produced and
location requirements.
The following maintenance procedures should be sched-
uled once per year al least from the local service Agency.
Be sure the electrical power supply of the machine is OFF,
before starting any maintenance and cleaning procedure.
a) Close the water supply, shut-off valve, disconect the water
inlet pipe and remove the strainer from its seat in the water
inlet elettrovalve withdrawing it bay means of pilers. Clean
the strainer under running water and reassemble.
b) Check that the ice maker cabinet is levelled in side-to-side
and front-to-rear directions.
c) Check paddle shaft motor and harvest motor operation.
d) If you think it opportune, check by means of a gauges the
delivery pressure and the evaporator temperature.
e) Clean the air-cooled condenser using a nonmetal brush or a
vacuum cleaner.
f ) Check that fan blades move freely and are not touching any
sourfaces.
g) Check for refrigerant leaks.
h) Check for water leaks. Pour water down bin drain to be sure
that drain line is open and clear.
i) Check operation of the bin thermostat.
9.2 ICEMAKER CLEANING
a) remove the top panel.
b) remove all ice from the storage bin.
c) Close the water supply shut-off valve.
d) fill tilting pan with a solution of water and citric acid (200-
400 grs. of citric acid in one litre of water) and by means of
a brush clean the inside of the tilting pan and the evapora-
tor fingers. Start the icemaker to tilt the pan, rinse with clean
water in abudance and repeat cleaning three times.e)
Add hot water to the ice storage bin and thoroughly wash
and rinse all surfaces within the bin.
f ) Clean and sanitize the ice storage bin frequently.
9.3 PARTS REPLACEMENT PROCEDURES
a) ADJUSTABLE LEGS FOR N55S÷N90L MODELS
• Using the couplings and adjustable feet supplied and screw-
ing them on the base nipples the icemaker can be placed at
9,5 cm. abt. from ground level.
• Extended feet are available on request to adjust the ice-
maker at 16 cm. about from ground level.
• The adjustment should be performed during initial installa-
tion of the cabinet and any time the cabinet is moved from
the original location to another site.
Be sure the electrical power supply and the water supply
are OFF, before starting any removal and replacement pro-
cedures, as a precaution to prevent possible personal in-
jury or damage to equipment.
b) COMPRESSOR REPLACEMENT
• remove the front panel grid and the right side panels.
• On N45S÷N140 models remove the rear panel grid and the
side panels.
• remove the cover and disconnect the electrical leads from
the compressor junction box.
• Bleed off or blow the refrigerant charge through the valve.
• Unsolder and disconnect both the suction line and the dis-
charge line (from the compressor).
• remove compressor mounting bolts and the compressor
from the unit base.
• Always install a replacement drier, anytime the sealed refrig-
eration system is open. Do not replace the drier until all other
repairs or replacements have been completed.
• To install the replacement compressor follow previous steps
in reverse.
• Thoroughly evacuate the system to remove moisture and
non-condensables after compressor replacement.
• Before proceeding with the refrigerant charge check name-
plate for specific refrigeration charge for individual cuber.
c) AIR COOLED CONDENSER REPLACEMENT
• remove the front panel grid and the right side panels.
• remove the screws which attach the condenser to the unit
base.
• Bleed off or blow the refrigerant from the system.
• Unsolder the refrigerant lines from condenser and remove it
from the unit.
• Install the replacement condenser following previous steps
in reverse.
• Thoroughly evacuate the system to remove moisture and
non condensables; then proceed with the charge of frEON
r134a.
d) DRIER REPLACEMENT
• remove the front panel grid and the right side panels.
• Bleed off or blow the refrigerant charge through the Henry-
type valve.
• Unsolder the capillary tube from one end of the drier and
the refrigerant line from the other end.
• To install a replacement drier remove factory seals.
• Thoroughly evacuate the refrigerant system.
• Charge the system with refrigerant by weight (see name-
plate) and check for leaks.
e) FAN MOTOR REPLACEMENT
• remove the front panel grid and the right side panels.
• Trace the electric wire leads of fan motor and disconnect the
same.
• remove the bolts securing the fan motor assembly to the
cabinet base and the remove the assembly.
• Install the replacement fan motor following previous steps
in reverse anc check that the fan blade do not touch any
sourface and move freely.