COMMISSIONING AND MAINTENANCE
24
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Avoid using mobile phones.
3.2.1 Refrigerant label
According to EC Regulation No. 517/2014 regarding certain fluor-
inated greenhouse gases, the total amount of refrigerant con-
tained within the installed system must be indicated. This infor-
mation can be found on the outdoor unit technical data plate.
A Standard charge
B Additional charge
C Total charge
D Equivalent total weight of CO2
QUESTO APPARECCHIO CONTIENE
GAS AD EFFETTO SERRA COPERTI
DAL PROTOCOLLO DI KYOTO.
INFORMAZIONI SUL REFRIGERANTE
Refrigerante
Carica addizionale
Carica totale
Carica di fabbrica
(vedi etichetta tecnica)
É VIETATO DISPERDERE
IL GAS R32 DIRETTAMENTE
IN ATMOSFERA
Istruzioni per compilare l’Etichetta “F-Gas Label”:
1 - Annotare le quantità sull’etichetta con inchiostro indelebile
2 - Collocare l’adesivo plastico di protezione (consegnato assieme al manuale)
3 - Peso equivalente CO2 del sistema in tonnellate = Carica totale in kg / 1000 x GWP
GW
P
675
R32
A
B
C
D
Peso equivalente CO2
kg
kg
kg
t
To fill in the tag:
—
note the quantity onto the label with indelible ink
—
place the refrigerant gas label on the outdoor unit
9
This unit contains fluorinated greenhouse gases covered
by the Kyoto protocol. Maintenance and disposal activities
must be carried out exclusively by skilled personnel.
9
Global warming potential of the R32 refrigerant gas: GWP=675
9
If necessary, the refrigerant must be recovered and not dis-
persed into the environment.
0
It is forbidden to disperse the refrigerant into the environ-
ment.
3.3 Ordinary maintenance
Periodical maintenance is fundamental to keep the device effi-
cient, safe and reliable over time, and it can be carried out on
a regular basis, depending on the type of intervention required,
by our Technical Support Service, which is technically trained and
licensed and can also provide original spare parts if necessary.
9
For units installed in a seaside environment, the mainte-
nance intervals shall be halved.
9
Original conditions must be restored after performing the
required maintenance operations.
9
All described operations MUST be carried out under the fol-
lowing conditions:
—
cold device
—
device NOT supplied with electric power
—
suitable personal protection equipment
0
It is forbidden to open the access doors and carry out any
technical or cleaning operation before disconnecting the
device from the power supply by positioning the system
main switch to "OFF"
ON
OFF
—
set the system main switch to “OFF”
9
Wait 10 minutes before touching the device electric compo-
nents.
9
Check with a tester that the voltage between connectors
CN25 and CN 28 of the main electronic board is lower than
10 Vdc.
Yearly operations
The annual maintenance plan includes the following checks:
—
power supply voltage
—
electric connection tightening
—
status of cooling and hydraulic joint
—
finned coil cleaning
—
electric absorption
—
fan grille cleaning
Cleaning the heat exchanger fins
The thermal exchange bank must be cleaned with compressed
air.
Cleaning must be performed at least once a year, depending on
the location, because the dirt gathering in the rows narrows the
passageway section and reduces the exchange capacity.
—
check the alignment of the aluminium fins of the coil and,
if necessary, straighten them with a suitable comb
—
check that the condensate discharge pipe is clean
9
Do not use any means to accelerate the defrosting.
9
Do not use systems different from the ones indicated in this
manual.
Emptying of the evaporator
This operation may be necessary to perform reparations on the
low pressure side (evaporator), the device reallocation or the re-
placement of the indoor unit without losing the whole refriger-
ant charge.
Proceed as follows:
—
remove the covering plug from the shut-off valve
—
check that the three-way shut-off valve is fully open
—
let the device operate in cooling mode for 10 - 15 minutes
—
stop the device for about 3 minutes
—
connect the charging tube of the pressure gauge unit to
the three-way valve service connection on gas side
—
vent the air from the charging tube
—
close the two-way shut-off valve on liquid side
—
operate the equipment in cooling mode until pressure
gauge reads a suction pressure of approx. -1 MPa
—
close the three-way shut-off valve on gas side
—
stop the unit
—
disconnect the pressure gauge unit
—
refit the valve covering plug