Valid from: 11/2011
Technical changes reserved
Page 12
Doc.: OM_VIAS & VICD (10D)
10.
Dangers
10.1. Electrical energy
Switch the appliance off immediately upon interruptions in the electrical power supply!
Any work carried out on the electrical units or utilities may only be carried out in accordance with
electrical regulations by an electrician specialist or by those being instructed and supervised by an
electrician specialist.
Appliances and unit components which are subject to inspection, maintenance and repair work have
to be completely disconnected and volt-free. First, check as to whether the activated parts have
indeed been disconnected and are volt-free, then ground and short them out. Insulate any adjacent
parts that are also energized!
10.2. Lift evaporator
Some models of the refrigerated display cases are equipped with gas springs, which keep the
evaporator in the upright position during cleaning and service. Once the gas springs begin to weaken
and are not able to keep the evaporator in the upright position anymore, they are to be removed and
replaced immediately by a specialized service representative.
11.
Maintenance
In order to guarantee efficient operation of the refrigerated well along with optimum presentation of the
goods, the entire technological equipment has to be checked and maintained regularly.
Service and maintenance, troubleshooting
Prescribed adjustment, service and inspection work is to be completed timely by the manager or if
necessary by an authorized service technician.
The operating personnel are to be informed before the beginning of the maintenance and service
work.
The unit is to be disconnected from the mains before maintaining, inspecting and repairing is
performed; the main switch is to be guarded against unintended reclosing.
Check all screw connections for tight fitting.
After finishing maintenance check all safety devices for proper functionality.
The following should be done
complete cleaning of the entire refrigerated well
checking the ventilator for functionality
checking the thermostat setting
checking the temperature of the drop-in refrigerated well
checking and cleaning the drainage lines and drip water evaporation
checking the gas spring on the evaporator
cleaning the condensers on the cooling unit
checking the amount of refrigerant
making a security check of the unit
