Manuale d’uso / di manutenzione del prodotto CU-S12NKU-1 del fabbricante Panasonic
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© Panasonic HA Air-Conditioni ng (M) Sdn. Bhd. 2011. Unauthorized copying and distribu tion is a violation of law. Order No: PHAAM1111084C1 Indoor Unit Outdoor Unit CS-S9NKUW-1 CS-S12NKUW-1 CS-S18NKU-1 CS-S22NKU-1 CU-S9NKU-1 CU-S12NKU-1 CU-S18NKU-1 CU-S22NKU-1 Please file and use this manual together with the service manual for Model No.
2 TABLE OF CONTENTS 1. Safety Pr ecautions .............................................3 2. Specification .......................................................5 3. Location of Controls and Components ............9 3.1 Indoor Un it .................
3 1. Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before per form any servicing. • Electrical work must be installed or servic ed by a licensed elec trician. Be sure to use the correct rating of the po we r plug a nd main circuit for the model installed.
4 WARNING 19. During installation, install the refrigerant piping properly bef ore run t he compressor. (Operation of compressor without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration c ycle and result in ex plosion, injury etc.
5 2. S pecification Indoor CS-S9NKUW-1 CS-S12NKUW-1 Model Outdoor CU-S9NKU-1 CU-S12NKU-1 Performance Test Condition ARI ARI Phase, Hz Single, 60 Single, 60 Power Supply V 208 230 208 230 Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. kW 1.
6 Control Device Capillary Tube Capillary Tube Refrigerant Oil cm 3 RB68A or Freol Alpha68M (320) RB68A or Freol Alpha68M (320) Refrigeration Cycle Refrigerant Type g (oz) R410A, 965 (34.
7 Indoor CS-S18NKU-1 CS-S22NKU-1 Model Outdoor CU-S18NKU-1 CU-S22NKU-1 Performance Test Condition ARI ARI Phase, Hz Single, 60 Single, 60 Power Supply V 208 230 208 230 Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. kW 1.30 5.01 5.80 1.30 5.
8 Control Device Expansion Valve Expansion Valve Refrigerant Oil cm 3 RB68A or Freol Alpha68M (400) RB68A or Freol Alpha68M (400) Refrigeration Cycle Refrigerant Type g (oz) R410A, 1.
9 3. Location of Controls and Components 3.1 Indoor Unit 3.2 Outdoor Unit 3.3 Remote Control.
10 4. Dimensions 4.1 Indoor Unit 4.1.1 CS-S9NKUW-1 CS-S12NKUW-1.
11 4.1.2 CS-S18NKU-1 CS-S22NKU-1.
12 4.2 Outdoor Unit 4.2.1 CU-S9NKU-1 CU-S12NKU-1 4.2.2 CU-S18NKU-1 CU-S22NKU-1.
13 5. Refrigeration Cycle Diagram 5.1 CS-S9NKUW-1 CU-S9NKU-1 CS-S12NKUW-1 CU-S12NKU-1.
14 5.2 CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1.
15 6. Block Diagram 6.1 CS-S9NKUW-1 CU-S9NKU-1 CS-S12NKUW-1 CU-S12NKU-1.
16 6.2 CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1.
17 7. Wiring Connection Diagram 7.1 Indoor Unit 7.1.1 CS-S9NKUW-1 CS-S12NKUW-1.
18 7.1.2 CS-S18NKU-1 CS-S22NKU-1.
19 7.2 Outdoor Unit 7.2.1 CU-S9NKU-1 CU-S12NKU-1.
20 7.2.2 CU-S18NKU-1.
21 7.2.3 CU-S22NKU-1.
22 8. Electronic Circuit Diagram 8.1 Indoor Unit 8.1.1 CS-S9NKUW-1 CS-S12NKUW-1.
23 8.1.2 CS-S18NKU-1 CS-S22NKU-1.
24 8.2 Outdoor Unit 8.2.1 CU-S9NKU-1 CU-S12NKU-1.
25 8.2.2 CU-S18NKU-1.
26 8.2.3 CU-S22NKU-1.
27 9. Printed Circuit Board 9.1 Indoor Unit 9.1.1 Main Printed Circuit Board.
28 9.1.2 Power Printed Circuit Board 9.1.3 Indicator Prin ted Circuit Board.
29 9.2 Outdoor Unit 9.2.1 Main Printed Circuit Board 9.2.1.1 CU-S9NKU- 1 CU-S12NKU-1.
30 9.2.1.2 CU-S18NKU-1 CU-S22NKU-1.
31 10. Inst allation Instruction 10.1 S9NKUW-1 S12NKUW-1 10.1.1 Select the Best Location 10.1.1.1 Indoor Unit • Do not in stall the unit in excessive oil fume area such as kitchen, workshop and etc. • There sh ould not be any heat source or steam near the unit.
32 10.1.3 Indoor Unit 10.1.3.1 How to Fix Installation Plate The mounting wall shall be stron g and solid enough to prevent if from the vibratio n. The centre of installation plate sho uld be at more than c at right and left of the wall. The distance from installation plate edge to ceiling sho uld more than d .
33 10.1.3.3 Indoor Unit Installation 10.1.3.4 For the right rear piping 10.1.3.5 For the right bottom piping 10.1.3.6 For the embedded piping (This can be used for left rear pipi ng and bottom piping also.
34 10.1.3.7 Connect the Cable to the Indoor Unit 1. The inside and outside con necting cable can be connected without remo ving the front grille. 2. Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut, then secure it against chassi s.
35 10.1.3.8 Wire Stripping and connecting requirement 10.1.3.9 Cutting and flaring the piping 1 Please cut using pipe cutter and then re move the burrs. 2 Remove the burrs by using reamer . If burrs is not removed, gas l eakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe.
36 10.1.4 Outdoor Unit 10.1.4.1 Install the Outdoor Unit • After selecting the best location, start installa tion to Indoor/Outdo or Unit Installation Diagram. 1 Fix the unit on concrete or rigid frame fi rmly and horizontally by bolt nut (ø13/32”).
37 10.1.4.2.4 Gas leak checking Pressure test to system to 400 PSIG with dry nitr ogen, in stages. Thoro ughly leak check the system. If the pressure holds, release the nitrogen and proceed to section 1 0.
38 9. Secure the wire onto the control boa rd with the holder (clamper). 10. After completing wiring connections, reattach the control board cover (Metal and Resin) and the top panel to the original position with the screws. 11. For wire stripping and connectio n requirement, refer to instruction g of indoor unit.
39 10.2 S18NKU-1 S22NKU-1 10.2.1 Select the Best Location 10.2.1.1 Indoor Unit • Do not install the unit in excessive oil fume areas such as kitch ens, worksho ps etc. • There should not be any heat source or steam near the unit. • There should not be any ob stacles blocki ng the air circulation.
40 10.2.3 Indoor Unit 10.2.3.1 How to Fix Installation Plate The mounting wall must be strong and solid enough to prevent if from the vibration. The centre of installation plate sho uld be at more than c at right and left of the wall. The distance from installation plate edge to ceiling sho uld more than d .
41 10.2.3.3 Indoor Unit Installation 10.2.3.4 For the right rear piping 10.2.3.5 For the right bottom piping 10.2.3.6 For the embedded piping (This can be used for left rear pipi ng and bottom piping also.
42 10.2.3.7 Connect the Cable to the Indoor Unit 1. The inside and outside con necting cable can be connected without remo ving the front grille. 2. Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut, then secure it against chassi s.
43 10.2.3.8 Wire Stripping and connecting requirement 10.2.3.9 Cutting and flaring the piping 1 Please cut using pipe cutter and then re move the burrs. 2 Remove the burrs by using reamer . If burrs is not removed, gas l eakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe.
44 10.2.4 Outdoor Unit 10.2.4.1 Install the Outdoor Unit • After selecting the best location, start installa tion to Indoor/Outdo or Unit Installation Diagram. 1 Fix the unit on concrete or rigid frame fi rmly and horizontally by bolt nut (ø13/32”).
45 10.2.4.3 Evacuation of the equipment When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedures. 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-wa y valve.
46 9. Secure the wire onto the contro l board with the holder (cla mper). 10. After completing wiring connections, reattach the particular plate an d control board cover (metal and resin ) to the original position with the screws. 11. For wire stripping and connectio n requirement, refer to instruction g of indoor u nit.
47 11. Operation Control 11.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time passes, automatically adjusts output power fo r maximum comfort always.
48 11.2 Indoor Fan Motor Operation 11.2.1 Basic Rotation Speed • Manual Fan Speed o Fan motor’s number of rotation is determ ined according to remote control setting. Remote control ○ ○ ○ ○ ○ Tab Hi Me+ Me Me- Lo • Auto Fan Speed o According to room temperature an d setting temperature, indoor fan speed is det ermined automatically.
49 11.5.1 Vertical Airflow Vane Angle (°) Operation Mode Airflow Direction 1 2 3 4 5 Auto 20 ~ 45 Cooling Manual 20 26 32 37 45 Auto 20 ~ 45 Soft Dry Manual 20 26 32 37 45 • Automatic vertical airflow direction can be set using re mote control; the vane swings up and down withi n the angles as stated above.
50 When quiet operation is stoppe d, operation is sh ifted to normal operation with previous setting . When fan speed is changed, quiet ope ration is sh ifted to quiet operation of the new fan speed. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode.
51 11.10 Indication Panel LED POWER TIMER QUIET POWERFUL Color Green Orange Orange Orange Light ON Operation ON Timer Setting ON Quiet Mode ON Powerful Mode ON Light OFF Operation OFF Timer Setting OF.
52 12. Protection Control 12.1 Restart Control (Time Delay Safety Control) • The compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at re mote control within this p eriod.
53 12.4.2 S18NK, S22NK • Overheating Prevention Control o When the IPM temperature rises to 212°F, compressor operation w ill stop immediately. o Compressor operation rest arts after 3 minut es the temperatu re decreases to 203°F. • DC Peak Current Control o When electric current to IPM exceeds set value of 29.
54 12.9 Outdoor Air Temperature Control • The compressor operating frequency is regulated in a cco rdance to the outdoor air temperature as shown in the diagram below. • This control will begin 1 minute after the compressor start s. • Compressor f requency will adjust based on outdoor air temperature.
55 13. Servicing Mode 13.1 Auto Off/On Button Auto OFF/ON Button Pressed Auto OF F/ON Button Pressed 5 sec Auto Operation Test Run Operation (Forced Cooling Operation) Stop 1 AUTO OPERATION MODE The Auto Operation will be activated immediately once the Auto OFF/ON button is pressed.
56 13.2 Remote Control Button 13.2.1 SET Button • To check remote control transmission co de and store the transmission code to EEPROM o Press “Set” button continu ously for 10 seconds by usi ng pointer o Press “Timer Set” button unit a “beep ” sound is heard as confirmati on of transmission code ch ange.
57 14. T roubleshooting Guide 14.1 Refrigeration Cycle System In order to diagnose malfunctions, ensu re the air conditioner is free from electrical problems bef ore inspecting the refrigeration cycle. Such problems include in sufficient insulation, problem with the power source, malfunction of a compressor a nd a fan.
58 14.1.1 Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Condition of the air conditioner Low Pressure High Pressure Electric current during o.
59 14.2 Breakdown Self Diagnosis Function 14.2.1 Self Diagnosis Function (Thr ee Digits Alphanumeric Code) • Once error occurred during operation, the uni t will stop its operation, and Timer LED blinks. • Although Timer LED goes off when power supply is turn ed off, if the unit is ope rated under a breakdown condition, the LED will ON again.
60 14.3 Error Code Table Diagnosis display Abnormality / Protecti on control Abnormality Judgment Emergency Operation Primary location to v erify H00 No abnormality detected - Normal operation H11 Ind.
61 14.4 Troubleshooting Flowchart 14.4.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions • During startup and operation of cooling and heating, t he data received from outdoor unit in ind oor unit signal transmission is checked whether it is no rmal.
62 14.4.2 H12 (Indoor/Outdoor Cap acity Rank Mismatched) Malfunction Decision Conditions • During startup, error code appears wh en different ty pes of indoor and outdoor units are inte rconnected. Malfunction Caused • Wrong models interconnected.
63 14.4.3 H14 (Indoor Intake Air Temp erature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, t he temperatures detected by the indoor intake ai r temperature sensor are used to determine sensor e rrors.
64 14.4.4 H15 (Compressor Temper ature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, t he temperatures detected by the outdoor com pressor temperature sensor are used to determine sensor e rrors.
65 14.4.5 H16 (Outdoor Current Transformer Open Circuit) Malfunction Decision Conditions • A current transformer (CT) is detected by checking the compressor runnin g frequency ( ≥ rated frequency) and CT detected input current (less than 1.14A) for continuou sly 20 seconds.
66 14.4.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions • The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550rpm or < 50rpm) Malfunction Caused • Operation stops due to short circuit inside the fan motor winding.
67 14.4.7 H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, t he temperatures detected by the indoor heat exch anger temperature sensor are used to determine sensor e rrors.
68 14.4.8 H27 (Outdoor Air Temper ature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor air tempe rature sensor are used to determine sensor errors. Malfunction Caused • Faulty conne ctor conn ection.
69 14.4.9 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temp erature sensor are used to determine sensor errors.
70 14.4.10 H30 (Compressor Discharge Temperature Sensor Abnormalit y ) Malfunction Decision Conditions • During startup and operation of cooling and heating, t he temperatures detected by the outdoo r discharge pipe temperature sensor are used to determine sensor e rrors.
71 14.4.11 H33 (Unspecified Volt age between Indoor and Outdoor) Malfunction Decision Conditions • The supply power is detected for its requir em ent by the indoor/ outdoor transmission. Malfunction Caused • Wrong models interconnected. • Wrong indoor unit and outdoor unit PCBs used.
72 14.4.12 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions • The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused • Operation stops due to short circuit inside the fan motor winding.
73 14.4.13 H98 (Indoor High Pressure Protection) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions • During heating operation, the temperature detected by the indoor p ipe temperature sensor is above 140°F.
74 14.4.14 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Malfunction Decision Conditions • Freeze prevention control takes place (when indoor pi pe temperature is lower than 35.
75 14.4.15 F11 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions • When cooling operation, when indoor pipe tempe rature or indoor heat exchanger temperature sensor is above 113°F. Malfunction Caused • Faulty conne ctor conn ection.
76 14.4.16 F90 (Power Fact or Correction Protection) Malfunction Decision Conditions • During startup and operation of cooling and heating, when Power Factor Co rrection (P FC) protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level.
77 14.4.17 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions • During cooling, compressor frequency = Fcmax. • During cooling and heating operation, running current: 0.65A < I < 1.65A. • During cooling, indoor intake - indoor pipe < 39.
78 14.4.18 F93 (Compressor Rotation Failure) Malfunction Decision Conditions A compressor rotation failure is detected by checkin g the compressor running condition throug h the position detection circuit.
79 14.4.19 F95 (Cooling High Pressure Abnormality) Malfunction Decision Conditions During operation of cooli ng, when outdoor unit heat e xchanger high temperature data (141.8°F) is detected by the outdoor pipe temperature sensor. Malfunction Caused • Outdoor pipe temperature rise due to short circuit of hot discharge air flow.
80 14.4.20 F96 (IPM Overheating) Malfunction Decision Conditions During operating of cooli ng and heating, when IPM temper ature data (212° F) is detected by the IPM temperature sensor . Malfunction Caused • IPM overheats due to short circuit of hot discharge air flow.
81 14.4.21 F97 (Compressor Overheating) Malfunction Decision Conditions During operation of cooli ng and heating, when compre ssor tank temperature data (233.6°F) is detected by the compressor tank temperature sen sor. Malfunction Caused • Refrigerant shortage (refrigerant leakage).
82 14.4.22 F98 (Input Over Current Detection) Malfunction Decision Conditions During cooling and heating operatio n, when an input over-curr ent (16.8A) is detected by checking the input current value being detected by current tran sforme r (CT) with the compressor running.
83 14.4.23 F99 (Output O ver Current Detection) Malfunction Decision Conditions During operation of cooli ng and heating, when an output over-cur rent (18.5A) is detecte d by checking the current that flows in the inverter DC peak sensing circuitry. Malfunction Caused • DC peak due to compressor failure.
84 WA RN ING 15. Disassembly an d Assembly Instructions High Voltage is generated in the electrical parts area by the capacitor. Ensure that t he capac itor has discharged sufficiently before proceeding with repair work. Failure to heed this cauti on may result in electric shocks.
85 15.1.1.2 To remove discharge grille.
86 15.1.1.3 To remove control board 15.1.1.4 To remove cross flow fan and indoor fan motor.
87.
88 16. T echnical Dat a 16.1 Operation Characteristics 16.1.1 CS-S9NKUW-1 CU-S9NKU-1 • Cooling Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Piping length: 24.
89 • Piping Length Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Outdoor temperature: 95°F (DBT) o Compressor Freq: Fc.
90 16.1.2 CS-S12NKUW-1 CU-S12NKU-1 • Cooling Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Piping length: 24.
91 • Piping Length Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Outdoor temperature: 95°F (DBT) o Compressor Freq: Fc.
92 16.1.3 CS-S18NKU- 1 CU-S18NKU-1 • Cooling Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Piping length: 16.
93 • Piping Length Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Outdoor temperature: 95°F (DBT) o Compressor Freq: Fc.
94 16.1.4 CS-S22NKU- 1 CU-S22NKU-1 • Cooling Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Piping length: 16.
95 • Piping Length Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Outdoor temperature: 95°F (DBT) o Compressor Freq: Fc.
96 17. Exploded View and Replacement Part s List 17.1 Indoor Unit 17.1.1 CS-S9NKUW-1 CS-S12NKUW-1 Note The above exploded view is for the purp os e of parts disassembly and replaceme nt.
97 REF. NO. P A RT NAME & DESCRIPTI ON QTY. CS-S9NKUW-1 CS-S12NKUW-1 REMARK 1 CHASSIS COMPLETE 1 CWD50C163 3 ← 2 FAN MOTOR 1 L6CBYYYL0055 ← O 3 CROSS-FLOW FAN COMPLETE 1 CWH02C1076 ← 4 BEARI.
98 17.1.2 CS-S18NKU-1 CS-S22NKU-1 Note The above exploded view is for the purp os e of parts disassembly and replaceme nt. The non-numbered pa rts are not kept as standard service parts.
99 REF. NO. P A RT NAME & DESCRIPTI ON QTY. CS-S18NKU-1 CS-S22NKU-1 REMARK 1 CHASSIS COMPLETE 1 CWD50C163 7 ← 2 FAN MOTOR 1 L6CBYYYL0056 ← O 3 CROSS-FLOW FAN COMPLETE 1 CWH02C1077 ← 4 BEARIN.
100 17.2 Outdoor Unit 17.2.1 CU-S9NKU-1 CU-S12NKU-1 Note The above exploded view is for the purp os e of parts disassembly and replaceme nt. The non-numbered pa rts are not kept as standard service parts.
101 REF. NO. PA RT NAME & DESCRIPTION QTY. CU-S9NKU-1 CU-S12N KU-1 REMARK 1 CHASSIS ASSY 1 CWD50K2206A ← 2 FAN MOTOR BRACKET 1 CWD541030 ← 3 SCREW - FAN MOTOR BRACKET 2 CWH551217 ← 4 FAN MOT.
102 17.2.2 CU-S18NKU-1 CU-S22NKU-1 Note The above exploded view is for the purp os e of parts disassembly and replaceme nt. The non-numbered pa rts are not kept as standard service parts.
103 REF. NO. PA RT NAME & DESCRIPTION QTY. CU-S18NKU-1 CU-S22NKU-1 REMARK 1 CHASSIS ASSY 1 CWD52K1227A ← 2 ANTI - VIBRATION BUSHING 3 CWH50077 ← 3 COMPRESSOR 1 5CS130XAD04 ← O 4 NUT - COMPRE.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Panasonic CU-S12NKU-1 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Panasonic CU-S12NKU-1 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Panasonic CU-S12NKU-1 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Panasonic CU-S12NKU-1 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Panasonic CU-S12NKU-1, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Panasonic CU-S12NKU-1.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Panasonic CU-S12NKU-1. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Panasonic CU-S12NKU-1 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
