Stulz COSMOTEC CVE Serie Manual De Uso Y Mantenimiento página 32

the unit is not installed in ventilated rooms and of sufficient size and s not installed in ventilated rooms and of sufficient size and
a rapid loss of coolant is evident, it is better send the operators a rapid loss of coolant is evident, it is better send the operators
away and ventilate the room.
11.6 DANGER OF IMPACT, CRUSHING, FALLING

Uncontrolled movements

Inadequate anchoring (instructions)

Inadequate support
12. DEMOLISHING THE EQUIPMENT
ATTENTION!
This equipment must be demolished by qualified personnel
Before dismantling the unit, make sure that it has been Before dismantling the unit, make sure that it has been
disconnected from the power supply. disconnected from the power supply.
The following are the instructions for proper disposal of the unit The following are the instructions for proper disposal of the unit
during the various phases of its life. Forfurther clarification or during the various phases of its life. Forfurther clarification or
additional information, please contact
Once the materials have been separated as shown below, they
should be assigned EWC codes and then sent for disposal in should be assigned EWC codes and then sent for disposal in
accordance with the national legislation.
Disposal related to the unit purchased occurs in three stages: Disposal related to the unit purchased occurs in three stages:
1. Disposal of packaging used to ship the unit
2. Disposal of any substances or components replaced during ances or components replaced during
routine or special maintenance
3. Disposal of the unit at the end of its life
To ensure proper and safe disposal activities, operator must equip To ensure proper and safe disposal activities, operator must equip
themselves with the necessary PPE including: anti-cut gloves, oil themselves with the necessary PPE including: anti
resistant gloves, heat resistant gloves, safety footwear, safety gloves, heat resistant gloves, safety footwear, safety
eyewear against liquid and gas splashes. The context in which the eyewear against liquid and gas splashes. The context in which the
unit is located may require the use of additional PPE, thus it is unit is located may require the use of additional PPE, thus it is
mandatory to inquire with the relevant staff of the area before mandatory to inquire with the relevant staff of the area before
starting ing
Disposal of packaging
The packaging of the unit must be disposed of ensuring separation The packaging of the unit must be disposed of ensuring separation
of the following materials:

Paper and Cardboard

Wood Packing–Packing materials are not chemically treated Packing materials are not chemically treated
unless they are declared to be "fumigate"

Plastic pallets- high- density polyethylene HDPE density polyethylene HDPE

Plastic Film– polyethylene PE

Polystyrene –expanded polystyrene EPS 6
Disposal of substances during maintenance operations Disposal of substances during maintenance operations
Before starting operations, make sure that the unit has been Before starting operations, make sure that the unit has been
disconnected from the mains.

During the life cycle of the unit, if it becomes necessary to During the life cycle of the unit, if it becomes necessary to
drain the cooling system, the refrigerant must be recovered. drain the cooling system, the refrigerant must be recovered.
This operation must be performed by qualified personnel in This operation must be performed by qualified personnel in
accordance with EC Regulation 842/2006. The types of gases accordance with EC Regulation 842/2006. The types of gases
used are shown in the following table.

If the compressor oil needs to be replaced, it must be disposed If the compressor oil needs to be replaced, it must be disposed
of according to the instructions below.

The air filters should be disposed of depending on the The air filters should be disposed of depending on the
substances they contain from the environment in which the substances they contain from the environment in which the
units operate

The gas filters must be disposed of as contaminated materials The gas filters must be disposed of as contaminated materials
from the oils of the type shown below
qualified personnel only.
info@stulz.it. info@stulz.it
rated as shown below, they
operation. operation.
Disposal at the end of life of the unit Disposal at the end of life of the unit
Before starting operations, make sure that the unit has been Before starting operations, make sure that the unit has been
disconnected from the mains.
The unit must be disposed ofensuring separation of the following isposed ofensuring separation of the following
materials:

Refrigerant - The refrigerants used are not harmful to the The refrigerants used are not harmful to the
ozone layer but worsen global warming. The refrigerant must ozone layer but worsen global warming. The refrigerant must
therefore be recovered before dismantling the unit. This therefore be recovered before dismantling the unit. This
operation must be carried out by qualified personnel in
accordance with EC Regulation 842/2006. The types of accordance with EC Regulation 842/2006. The types of
refrigerants used is the following: refrigerants used is the following:
Code
R-134a

Metals– (Painted, (Painted,
galvanized galvanized steel steel
copper/copper/galvanized steel, copper/aluminum/galvanized copper/copper/galvanized steel, copper/aluminum/galvanized
steel, steel, aluminum/aluminum, aluminum/aluminum,
steel/copper, hydraulic valves, brass pipe fittings) steel/copper, hydraulic valves, brass pipe fittings)

Copperpipes– may contain traces of oil may contain traces of oil

Insulation and sound-absorbing materials

Electric and electronic components electronic components- (pumps, fans, oil-free
compressors, electronic circuit boards, servomotors, electrical compressors, electronic circuit boards, servomotors, electrical
heating resistances, electrical panel components) heating resistances, electrical panel components)
 Cables and wiring
 Oil content within the compressors Oil content within the compressors–is polyester based (POE)
or polyvinyl ether based (PVE). Refer to the label on the
compressor
 Plastic Parts - Plastic parts that are important in terms of Plastic parts that are important in terms of
weight are the following:
Identified Substance
acrylonitrile butadiene styrene acrylonitrile butadiene styrene
terpolymer
polystyrene homopolymer
polycarbonatefrom bisphenol A polycarbonatefrom bisphenol A
13. TROUBLESHOOTING
EXCESSIVE FORMATION OF CONDENSATE EXCESSIVE FORMATION OF CONDENSATE
1. Cabinet with degree of protection less than IP54 Cabinet with degree of protection less than IP54
a. Check that the self-adhesive rubber seal between the air
conditioner and the cabinet has been conditioner and the cabinet has been applied properly
b. Check that the closing panels of the condenser have been Check that the closing panels of the condenser have been
properly assembled
c. Check that there are no openings in the cabinet Check that there are no openings in the cabinet
DOES NOT COOL ADEQUATELY
1. Internal fan runs, compressor and external fan operate Internal fan runs, compressor and external fan operate
intermittently
a. Clean the evaporator
b. Make sure that there are no external causes which limit the flow Make sure that there are no external causes which limit the flow
of air inside circuit
2. Condenser fan and evaporator fan operate and compressor Condenser fan and evaporator fan operate and compressor
operates intermittently
a. High pressure switch intervention, where present High pressure switch intervention, where present
-
Ambient temperature higher than the maximum allowed by the
rating plate

Ventilate the room
 Consult a refrigeration engineer or Consult a refrigeration engineer or STULZ SpA technical
assistance
-
Dirty filter

Clean or if necessary replace the dirty filter Clean or if necessary replace the dirty filter
32
CVE-CVO
ied out by qualified personnel in
CAS number CAS number
811 811-97-2
galvanized,plastic galvanized,plastic-coated
pipes; pipes; heat heat
stainless stainless steel, steel,
absorbing materials
based (PVE). Refer to the label on the
CAS Number
9003-56-9
9003-53-6
103598-77-2
adhesive rubber seal between the air
than the maximum allowed by the
framework;
exchangers exchangers
painted painted