BLOCKSYSTEM FA 8 REV. 02 02/03
UK
8.
ALARMING
E 1 - Failure room prober
E 2 - Failure evaporator probe
AH1 - High temperature alarm
AL2 - Low temperature alarm
Ad2 - Defrost end Time
EA - External Alarm
oPd - open door Alarm
9. MAINTENANCE AND CLEANING
• IMPORTANT NOTE: All cleaning and maintenance operations must only be performed
when the Blocksystem is switched off and disconnected from the power supply
(thermomagnetic switch set to off).
• Every week: ensure that the evaporator is clean and that there is no build-up of ice. If the
evaporator is clogged with ice, carry out a manual defrost cycle by holding down the “UP” key for
more than 10 seconds. Repeat this procedure until the evaporator is completely clean. Check
after 12 hours.
• Regularly clean the condenser (at least every month) by removing all dust and grease. If the
room where the unit is located is very dusty, more frequent cleaning may be necessary.
• Clean the fixed and mobile contacts of all contacters; replace them if they show signs of wear.
(every four months)
• Check that all electric terminals, both on electrical panels and terminal boards, are properly
connected; also check carefully that the all fuse elements are correctly clamped. (every four
months)
• Visually check the entire refrigerating circuit, even inside the machines, for any traces of
refrigerant leaks, which are also signalled by traces of lubricant oil. Intervene in due time and
check further in case of doubt. (every four months)
• Check the oil level by means of the special indicator (where present) on the compressor
crankcase. (every four months)
• Check the noise level of the compressor. This check must be performed with caution, as it has
to be carried out while the system is operating. Check for ticking or vibrations that result from
breakdowns or excessive mechanical friction between moving parts. (every four months)
• Clean the condenser regularly. We recommend using a jet of air, blowing towards the outside
and removing any grease or dust (specialist personnel only).
• Check that the condensation water drainage outlet is not blocked. For TN (medium
temperature) and BT (low temperature) Blocksystems, make sure that the water drainage heater
is in perfect working order (specialist staff only).
• Important Note: at the end of maintenance operations, replace all previously removed guards.
10. DISPOSAL
If the machine is placed out of service, it is necessary to disconnect it from the mains. The gas
contained inside the system must not be dispersed into the environment. The insulating material of
the plug and the compressor oil are subjected to differentiated waste collection regulations;
therefore, we recommend that you do not dispose of the unit as normal iron scrap but that you use
a special collection centre, as per the standards and regulations in force.
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