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GENERAL INFORMATION
This chapter offers all the technical
information required to conduct regular
and extraordinary maintenance in
compliance with the regulations in force.
BEFORE STARTING ANY
MAINTENANCE WORK OR OPERATOR
CHECKS, YOU MUST:
• Verify that the display case is turned off
and that it is disconnected from the power
mains.
• Set up a sign indicating the work that is
being done.
• If necessary, procure adequate lifting
equipment.
• Verify that the operations to be done will
not injure personnel or damage nearby
machinery.
If the display case has not been used for a
long time (winter season), we recommend
the following procedures before turning it
on again.
• Thoroughly clean the display section
• Thoroughly clean the condenser (if present)
• Thoroughly clean the glass structure
• Thoroughly clean the external structure
• Check the ventilator fans to be sure they are not clogged.
IMPORTANT - Incorrect or poor maintenance can make the display case hazardous to the
operator and the personnel working near it.
CLASSIFICATION OF INTERVENTIONS
Maintenance work falls into two categories:
• Normal maintenance: defined as work done to maintain normal operating conditions for the
display case, i.e. without requiring the replacement of any parts.
This includes:
- Maintenance during the first ten hours of operation.
- Weekly maintenance work.
- Monthly maintenance work.
- Work done every six months.
- Work done annually.
• Extraordinary maintenance: defined as work comprising:
- Work required due to malfunctions;
- Work to be done at long intervals, i.e. work corresponding to the end of the work life of a main
part and requiring the interruption of display case operation.
ATTENTION - All the operations preceded by the symbol "
specialized technician.
REQUIREMENTS FOR MAINTENANCE PERSONNEL
Maintenance of these machines must be conducted SOLELY by qualified personnel
specializing in working with refrigerating systems.
• They must know and understand the written instructions, laws and regulations.
rigo
17
Mod. ID 974 (Cold Table)
°
C
fnc
set
Runs through the menu.
Increases the values.
Activates manual defrosting.
UP BUTTON:
Runs through the menu.
DOWN BUTTON:
Decreases the vaues.
fnc
fnc BUTTON:
ESC function (exit)
Enters into the Setpoint.
set
Enters into the menus.
Confirms commands.
set BUTTON:
Visualises the alarms.
" must be performed by a
FIG. 16
Mod. IC 901 (Hot Table)
°
C
out
fnc
set
For compressor lit,
flashing for delay,
Compressor
protection or activation
OR RELAY ON:
blocked
ON for defrosting in progress;
flashing for manual defrosting
DEFROSTING:
ON for alarm active;
flashing for alarm silent
ALARM:
FANS:
ON for the fan in function
out:
ON for the fed contact
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