Start Up Instructions; Ordinary Maintenance - Costan GRANVISTA NEXT Instructions Pour L'utilisateur

The use of a corrosion inhibitor is mandatory.
START-UP INSTRUCTIONS:
We strongly recommend that you thoroughly clean the systems before filling up and com-
pletely drain the system after filling.
To prevent the risk of scaling and deposit of inhibition systems, we recommend you use
demineralized water.
The pH of the solution should never exceed 7.
MAINTENANCE:
We recommend you check the pH and the concentration of the solution used at least once
a year.

11. ORDINARY MAINTENANCE

ATTENTION! BEFORE STARTING ANY MAINTENANCE OR CLEANING, DISCONNECT
THE EQUIPMENT FROM THE ELECTRICAL POWER SUPPLY USING THE MAIN WALL CUT-
OFF SWITCH (fig. 17).
IMPORTANT: During maintenance or cleaning operations, be sure that the light in the working
area is sufficient and if necessary, use an additional source of light.
CLEANING THE DISPLAY CASE
1) Every week clean the outer surfaces of the display case with mild soap or detergent in
lukewarm water only. Wipe carefully with a soft cloth. Never clean it using inflammable or scou-
ring agents, alcohol, acetone or solvents. NEVER CLEAN THE DISPLAY CASE BY THE USE
OF WATER JETS. Clean glass surfaces using glass-cleaning products exclusively. The use of
water is not recommended here, as it may cause scale to build up.
CAUTION! NEVER WASH OR CLEAN THE UPPER PART OF THE DISPLAY CASE WITH
WATER OR LIQUIDS
2) Every month clean the inside surfaces following the instructions provided in the preceding
item:
3) Defrost the display case every three months to let the ice that may have formed between
the fins melt. Frost may otherwise prevent correct operation. Proceed as follows.
· Disconnect the display case from the electrical power supply by the wall main cut-off switch (fig.
17).
· Empty the appliance, store the contents in cold rooms or refrigerators that are adequate for kee-
ping the requisite preservation temperature.
· Wait until the cold room has reached ambient temperature.
· Clean the inside of the display case thoroughly with mild soap or detergent and lukewarm
water. Wipe carefully with a soft cloth.
· After having carefully checked that the display case is completely dry inside, start the applian-
ce again by the wall cut-out switch.
· Allow a couple of hours before loading the products back again.
Attention! Disassemble and assemble very slowly, using heavy-duty gloves. It is advisable
to have these cleaning operations carried out by authorized service personnel.
ANY MAINTENANCE OPERATION NOT INCLUDED AMONG THE FORMER STEPS MUST BE CAR-
RIED OUT BY THE AUTHORISED AFTER-SALES SERVICE OR BY QUALIFIED PERSONNEL.
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