Manuel d'utilisation / d'entretien du produit MXZ-8B48NA du fabricant Mitsubishi Electronics
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TECHNICAL & SER VICE MANUAL SPLIT -TYPE, HEA T PUMP AIR CONDITIONERS CONTENTS 1. SAFETY PRECAUTION .................................... 2 2. OVERVIEW OF UNITS ...................................... 5 3. SPECIFICA TIONS ............................
2 1 SAFETY PRECAUTION Cautions for units utilizing refrigerant R410A 1-1. AL W A YS OBSERVE FOR SAFETY Use new refrigerant pipes. Charge refrigerant from liquid phase of gas cylinder . If the refrigerant is charged from gas phase, composition change may occur in refrigerant and the efficiency will be lowered.
3 Gravimeter Unit [3] Service tools (1) Use the below service tools as exclusive tools for R410A refrigerant. No. T ool name Specifications 1 Gauge manifold ·Only for R410A ·Use the existing fitting specifications . (UNF1/2) ·Use high-tension side pressure of 5.
4 1-3. Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant.
5 2 OVER VIEW OF UNITS 2-1. CONSTRUCTION OF SYSTEM 6HP Rated capacity (kBTU/h) (Cooling/Heating) 48/54 MXZ-8B48NA R410A Indoor unit that can be connected Branch box that can be connected Capacity Number of units T otal system wide capacity T ype 06 ~ T ype 24 2 ~ 8 units 1 ~ 2 units 22.
6 Indoor unit (Ceiling concealed type) Indoor unit (W all mounted type) Outdoor unit Branch Box 2-2. SYSTEM OUTLINE The additional connection of the Branch Box together with employment of the compact trunk-looking outdoor unit can suc- cessfully realizes a long distance piping for big houses.
7 2-3. TYPICAL COMBINA TION EXAMPLE Branch box is located INSIDE of condominium Branch box (Inside) Installing branch box indoors Only 1 piping is required between the outdoor and indoor offering a fine external view .
8 2-4. SIMPLIFIED PIPING SYSTEM Piping connection size Liquid Gas W 9.52 mm (3/8 inch) W 15.88 mm (5/8 inch) The piping connection size differs according to the type and capacity of indoor units. Match the piping connection size of branch box with indoor unit.
9 3 SPECIFICA TIONS • Outdoor unit : MXZ-8B48NA Conversion formula: kcal/h = kW % 860 Btu/h = kW % 3412 CFM = m 3 /min % 35.31 Service Ref. MXZ-8B48NA Standard performance Indoor type Non-Ducted Mix Ducted Cooling Capacity Rated / Max (*1) Btu/h 48000 / 54000 Rated power consumption (*1) W 5780 6125 6470 EER Btu/Wh 8.
10 kW A mm (in.) mm (in.) mm (in.) mm (in.) kg (lbs) mm (in.) mm (in.) mm (in.) mm (in.) Model name Connectable number of indoor units Power supply (from outdoor unit) Input Running current External f.
11 4 D ATA 4-1. CAP ACITY AND CHARACTERISTICS Note: • Cooling capacity is based on D.B. 26.7 °C / W .B. 19.4 °C (D.B. 80 °F / W .B. 67 °F) (indoor temperature), D.B. 35 °C (D.B. 95 °F) (outdoor temperature). • Heating capacity is based on D.
12 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A Unit B Unit C Unit D Unit A Unit B Unit C Unit D 208V 230V 09 09 09 - 9000 9000 9000 - 27000 2540 12.4 1 1.2 09 09 12 - 9000 9000 12000 - 30000 2780 13.
13 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A Unit B Unit C Unit D Unit A Unit B Unit C Unit D 208V 230V 06 09 09 09 6000 9000 9000 9000 33000 3010 14.7 13.
14 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A Unit B Unit C Unit D Unit E Unit A Unit B Unit C Unit D Unit E 208V 230V 09 12 24 24 - 7040 9390 18780 18780 - 53990 3680 17.
15 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A Unit B Unit C Unit D Unit E Unit A Unit B Unit C Unit D Unit E 208V 230V 06 06 09 12 24 5680 5680 8530 1 1370 22740 54000 4940 24.
16 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A B C D E F Unit A Unit B Unit C Unit D Unit E Unit F 208V 230V 06 12 12 18 18 - 4910 9820 9820 14730 14730 - 54010 3930 19.
17 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A B C D E F Unit A Unit B Unit C Unit D Unit E Unit F 208V 230V 06 06 06 06 09 24 5680 5680 5680 5680 8530 22740 53990 4940 24.
18 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A B C D E F G Unit A Unit B Unit C Unit D Unit E Unit F Unit G 208V 230V 06 06 12 12 12 12 - 5400 5400 10800 10800 10800 10800 - 54000 4550 22.
19 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit Input (W) Outdoor unit current (A) Unit A B C D E F G Unit A Unit B Unit C Unit D Unit E Unit F Unit G 208V 230V 06 06 06 06 06 09 24 5140 5140 5140 5140 5140 7710 20570 53980 4220 20.
20 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit Input (W) Outdoor unit current (A) Unit A B C D E F G H Unit A Unit B Unit C Unit D Unit E Unit F Unit G Unit H 208V 230V 06 09 09 09 09 09 18 - 4700 7040 7040 7040 7040 7040 14090 - 53990 3680 17.
21 (2) Heating mode <Heating> Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A Unit B Unit C Unit A Unit B Unit C 208V 230V 06 - - 7200 - - 7200 720 3.5 3.
22 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A Unit B Unit C Unit D Unit A Unit B Unit C Unit D 208V 230V 09 09 09 - 10900 10900 10900 - 32700 3390 16.6 15.
23 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A Unit B Unit C Unit D Unit A Unit B Unit C Unit D 208V 230V 06 09 09 09 7200 10900 10900 10900 39900 4210 20.
24 <Heating> Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A Unit B Unit C Unit D Unit E Unit A Unit B Unit C Unit D Unit E 208V 230V 09 12 24 24 - 7890 10420 20840 20840 - 59990 3840 18.
25 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A B C D E Unit A Unit B Unit C Unit D Unit E 208V 230V 06 06 09 12 24 6310 6310 9550 12610 25230 60010 4610 22.
26 <Heating> Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A B C D E F Unit A Unit B Unit C Unit D Unit E Unit F 208V 230V 06 12 12 18 18 - 5450 10910 10910 16360 16360 - 59990 4010 19.
27 <Heating> Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A B C D E F Unit A Unit B Unit C Unit D Unit E Unit F 208V 230V 06 06 06 06 09 24 6310 6310 6310 6310 9550 25230 60020 4610 22.
28 <Heating> Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A B C D E F G Unit A Unit B Unit C Unit D Unit E Unit F Unit G 208V 230V 06 06 12 12 12 12 - 6000 6000 12000 12000 12000 12000 - 60000 4390 21.
29 Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit input (W) Outdoor unit current (A) Unit A B C D E F G Unit A Unit B Unit C Unit D Unit E Unit F Unit G 208V 230V 06 06 06 06 06 09 24 5710 5710 5710 5710 5710 8640 22830 60020 4190 20.
30 <Heating> Indoor unit combinations Capacity of each unit (BTU/h) T otal rated capacity (BTU/h) Outdoor unit Input (W) Outdoor unit current (A) Unit A B C D E F G H Unit A Unit B Unit C Unit D Unit E Unit F Unit G Unit H 208V 230V 06 09 09 09 09 09 18 - 5190 7850 7850 7850 7850 7850 15560 - 60000 3840 18.
31 4-2. CORRECTING COOLING AND HEA TING CAP ACITY 4-2-1. Correcting Changes in Air Conditions (1)The performance curve charts (Figure 1-1, 1-2, 2-1, 2-2) show the change ratio of capacity and input (p.
32 4-2-2. Correcting Capacity for Changes in the Length of Refrigerant Piping T o obtain the ratio (and the corrected piping length) of the outdoor units Max. capacity and the total in-use indoor capacity , first find the capacity ratio corresponding to the standard piping length from Fig.
33 1.5m (5ft) 1m(3.3ft) MICROPHONE UNIT GROUND 4-3. NOISE CRITERION CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMA TE THRESHOLD OF HEARING FOR CONTINUOUS NOISE OCT A VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.
34 5 OUTLINES AND DIMENSIONS 5-1. OUTDOOR UNIT unit : mm (inch) MXZ-8B48NA Min.500mm <19-11/16> Min.500mm <19-11/16> Min.150mm <5-29/32> Min.10mm<3/8> Handle Side Air Intake Front piping cover Rear piping cover Air intake Rear Air Intake Handle 31<1-7/32> 74<2-19/32> 40<1-9/16> Max.
35 unit : mm (inch) 5-2. BRANCH BOX UNIT P AC-AKA51BC P AC-AKA31BC TB3D TB3E TB3A TB3B TB3C TB2B 3- W 22<7/8> 58 <2-1/4> 56 <2-1/4> 192 <7-1/2> When installing the conduit.
36 6 WIRING DIAGRAM 6-1. OUTDOOR UNIT MXZ-8B48NA The black square ( ■ ) indicates a switch position. (L2-Phase) (L1-Phase).
37 6-2. BRANCH BOX : P AC-AKA51BC P AC-AKA31BC + Setup of SW1 Make it the same setup as former when exchanging PCB. The black square ( ■ ) indicates a switch position.
38 A A A BB BB B 2 branches pipe (joint) : optional parts Branch box #1 Branch box #2 ■ In case of using 2-branch boxes A BB B B B Branch box 7 NECESSAR Y CONDITIONS FOR SYSTEM CONSTRUCTION REFRIGER.
39 8 TROUBLESHOOTING <Error code display by self-diagnosis and actions to be taken for service (summary)> Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit.
40 8-2. CHECK POINTS FOR TEST RUN 8-2-1. Before test run T urn on the main power switch more than 12 hours before starting operation. Starting operation just after turning on the power switch can severely damage the internal parts. Keep the main power switch turned on during the operation season.
41 8-2-3. T est run by outdoor unit SW4 The setting of test run (ON/OFF) and its operation mode (cooling/heating) can be set by SW4 on the controller board of out- door unit. 1 Set operation mode (cooling or heating) by SW4-2. 2 Start test run by setting SW4-1 to ON ( ) with the indicated operation mode of SW4-2.
42 8-3. SELF-DIAGNOSIS ACTION T ABLE <Abnormalities detected when the power is put on> (Note 1) Refer to indoor unit section for code P and code E. Error Code Abnormal point and detection method Case Judgment and action None — 1 No voltage is supplied to termi- nal block (TB1) of outdoor unit.
43 Error Code Abnormal point and detection method Judgment and action Eb (6845) Miswiring of indoor–branch box/branch box–outdoor unit connecting wire (converse wiring or dis- connection) Outdoor/branch box controller circuit board can automatically set the unit number of indoor units.
44 Error Code Abnormal point and detection method Judgment and action U1 (1302) (1) High-pressure switch (63H) operated Abnormal if high-pressure switch 63H oper- ated ( w ) during compressor operation. w 4.15 MPa [602PSIG] 63H: High-pressure switch (2) High pressure (High - pressure sensor 63HS detect) 1 When high-pressure sensor detects 4.
45 U2 (1 102) (1) High discharging temperature Abnormal if discharge temperature ther- mistor (TH4) exceeds 125 : [257°F] or 11 0 : [230°F] continuously for 5 minutes.
46 Thermistors Open detection Short detection Symbol Name TH3 TH7 TH8 Branch box unit TH-A~E (Room A-E) – 40 [– 40°F] or below – 40 [– 40°F] or below – 35 [– 30°F] or below .
47 Error Code Abnormal point and detection method Judgment and action Case UF (4100) Compressor overcurrent interruption (When compressor locked) Abnormal if overcurrent of DC bus or compressor is detected within 30 seconds after compressor starts operating.
48 Error Code Abnormal point and detection method Judgment and action Case E0 (No display) Remote controller communication error (Signal receiving error) (1) Abnormal if any signal from IC of refrigerant address “0” could not be normally received for 3 minutes.
49 Error Code Abnormal point and detection method Judgment and action Case E9 (6841) Indoor - branch box/branch box - outdoor unit communication error (T ransmitting error) (Branch box/outdoor unit) (1) Abnormal if “0” receiving is detected 30 times continuously though branch box/ outdoor controller circuit board has transmitted “1”.
50 Phenomena Factor Countermeasure 2. Remote controller display works normally and the unit performs heating operation, however , the capacity cannot be fully obtained. 1 Linear expansion valve fault Opening cannot be adjusted well due to linear expan- sion valve fault.
51 CN51 X 5 4 3 Y L 1 : Error display lamp L 2 : Compressor operation lamp X, Y : Relay (Coil standard of 0.9W or less for DC 12V) .
52 8-6. HOW TO CHECK THE P ARTS OUTDOOR UNIT : MXZ-8B48NA Parts name Check points Disconnect the connector then measure the resistance with a tester . (At the ambient temperature 10 ~30 , 50°.
53 Notes · High voltage is applied to the connector (CNF1, 2) for the fan motor . Pay attention to the service. · Do not pull out the connector (CNF1, 2) for the motor with the power supply on. (It causes trouble of the outdoor controller circuit board and fan motor .
54 0 10 20 30 40 50 - 2 0 - 1 0 0 1 02 03 0 4 0 5 0 -4 -14 32 50 68 86 104 122 °F T emperature Resistance (k ) 500 400 300 200 100 0 25 50 75 100 120 77 122 167 212 248 °F T emperature R.
55 BRANCH BOX : P AC-AKA51BC P AC-AKA31BC 1 2 3 4 5 6 M Blue Brown Y ellow Orange Red White Parts name Check points Disconnect the connector then measure the resistance with a tester . (At the ambient temperature 10 ~30 , 50°F~86°F) Disconnect the connector then measure the resistance with a tester .
56 <Output pulse signal and the valve operation> (2) Linear expansion valve operation Open Extra ti g htenin g ( about 32 p ulse ) Pulse number 500 pulse Opening a valve all the way .
57 Main body Lead wire Stopper Coil (3) How to attach and detach the coil of linear expansion valve <Composition> Linear expansion valve is separable into the main body and the coil as shown in the diagram below .
58 T roubleshooting Problem Check point Corrective measure If the linear expansion valve becomes locked and the motor is still operating, the motor will emit a clicking noise and will not function.
59 Communication power supply D71 V oltage 24V DC CNS S1-S2: 208/230V AC (Branch box/outdoor unit connecting wire) CNAC 2 to 4 : Power supply for outdoor controller circuit board (208/230V AC) 1 to 3 .
60 Outdoor power circuit board MXZ-8B48NA CNAC1, CNAC2 208/230 V AC Connect to the out- door controller circuit board (CNAC) NI, LI V oltage of 208/230 V AC is input (Connect to the terminal block (TB.
61 Branch box controller board P AC-AKA51BC P AC-AKA31BC LEV -A to E Connect to LEV -A to E LEV -A to C for P AC-AKA31BC TH-A to E Connect to Thermistor-A to E TH-A to C for P AC-AKA31BC CN3C, CND Con.
62 Forced defrost Start Normal Normal — When compressor is working in heating operation. + Abnormal history clear No function Self-diagnosis (Indoor unit selection) Indicating a particular self-diagnosis Clear — off or operating — T est run Operating OFF Under suspension T est run mode setting Heating Cooling Indoor No.
63 SW6 SW9 Model selection SW6 Switching function of defrosting prohibited time During the F AN or COOL mode, and thermo - OFF in heating operation, set the opening of liner expansion valve on branch .
64 <Outdoor unit operation monitor function> Digital indicator LED3 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on outdoor controller .
65 SW2 setting 1 ON 23456 Display detail Explanation for display Unit Pipe temperature / Liquid (TH3) – 40~194 – 40~194 (When the coil thermistor detects 0°F or below , “–” and temperature are displayed by turns.) (Example) When –10°F; 0.
66 SW2 setting 1 ON 23456 Display detail Explanation for display Unit Pipe temperature / Liquid (TH3) on error occurring – 40~194 – 40~194 (When the coil thermistor detects 0°F or below , “–” and temperature are displayed by turns.) (Example) When –15°F; 0.
67 SW2 setting 1 ON 23456 Display detail Explanation for display Unit Capacity setting display Displayed as an outdoor capacity code. Code display 1 ON 23456 1 ON 23456 Outdoor unit setting informatio.
68 1 ON 23456 °C Discharge superheat. SHd 0~255 0~255 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) °C Sub-cool. SC (cooling mode) 0~130 0~130 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.
69 SW2 setting Display detail Explanation for display Unit Code display Error postponement code history (2) of outdoor unit Postponement code display Blinking: During postponement Lighting: Cancellation of postponement “00” is displayed in case of no postponement.
70 SW2 setting Display detail Explanation for display Unit : Indoor pipe temperature / Liquid on error occurring – 39~88 – 39~88 (When the temperature is 0°C or less, “–” and temperature are displayed by turns.) (Example) When –15°C; 0.5 secs.
71 SW2 setting Display detail Explanation for display Unit Thermo ON time until error stops 0~999 0~999 (When it is 100 minutes or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 415 minutes; 0.5 secs. 0.5secs. 2 secs.
72 <Branch box unit operation monitor function> [When option part ‘A-Control Service T ool (P AC-SK52ST)’ is connected to branch box controller board (CNM)] Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on ‘A-Control Service T ool’.
73 SW2 setting Display detail Explanation for display Unit 1 ON 23456 1 ON 23456 LEV -B opening pulse 0~500 0~500 (When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns. (Example) When 150 pulse; 0.5 secs. 0.5secs.
74 SW2 setting Display detail Explanation for display Unit 1 ON 23456 1 ON 23456 Indoor pipe temperature / Liquid TH2 Indoor-B – 35~88 (°C) – 31~190 (°F) w Indoor pipe temperature / Liquid TH2 I.
75 1 ON 23456 Pulse LEV -6 opening pulse 0~500 0~500 Pulse LEV -7 opening pulse 0~500 0~500 Pulse LEV -8 opening pulse 0~500 0~500 0.1 kgf/cm² PSIG( w ) High pressure (63HS) 0~500 (0.1 kgf/cm²) 0~71 1 (PSIG) w 0~500 (0.1 kgf/cm²), 0~71 1 (PSIG) (When it is 100 or more, hundreds digit, tens digit and ones digit are displayed by turns.
76 1 ON 23456 SW2 setting Display detail Explanation for display Unit Branch pipe temperature TH-A – 39~88 (°C) – 38~190 (°F) w 1 ON 23456 °C °F( w ) Branch pipe temperature TH-B – 39~88 (°.
77 SW2 setting Display detail Explanation for display Unit Indoor - setting temperature Indoor-A 16~31 (°C) 60~87 (°F) w Indoor - setting temperature Indoor-B 16~31 (°C) 60~87 (°F) w Indoor - sett.
78 8-9. SELECTING FUNCTIONS USING THE REMOTE CONTROLLER Each function can be set according to necessity using the remote controller . The setting of function for each unit can only be done by the remote controller . Select function available from the table 1.
79 9 PRECAUTIONS AGAINST REFRIGERANT LEAKAGE Indoor unit Outdoor unit 9-1. INTRODUCTION R410A refrigerant of this air conditioner is non-toxic and non-flammable but leaking of large amount from an indoor unit into t he room where the unit is installed may be deleterious.
80 Indoor unit The smallest room The second smallest room Outdoor unit V entilation apparatus Indoor unit Opening W all Outdoor unit (Situation in which there are no door openings or in which there are openings above and blow doors that occupy at least 0.
81 10 DISASSEMBL Y PROCEDURE OPERA TING PROCEDURE PHOTOS & ILLUSTRA TION 1. Removing the service panel and top panel (1) Remove 3 service panel fixing screws (5 × 10) and slide the hook on the right downward to remove the service panel. (2) Remove screws (3 for front, 3 for rear/5 × 10) of the top panel and remove it.
82 OPERA TING PROCEDURE PHOTOS Photo 4 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Disconnect the connectors, TH6 and TH7 (red), on the controller circuit board in the electrical parts box.
83 OPERA TING PROCEDURE PHOTOS 7. Removing the solenoid valve coil <4-way valve> (21S4) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) [Removing the solenoid valve coil <4-way valve>] (3) Remove 4-way valve solenoid coil fixing screw (M4 × 6).
84 1 1. Removing the high pressure switch (63H) and low pressure switch (63L) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Remove the electrical parts box. (See Photo 4) (4) Remove 3 right side panel fixing screws (5 o 10) in the rear of the unit and remove the right side panel.
85 OPERA TING PROCEDURE PHOTOS 1. Removing the controller cover and under panel (1) Remove 3 controller cover fixing screws (4 o 10) to detach the cover . (See Photo 1) (2) Remove 6 under panel fixing screws (4 o 10) to remove the panel. (See Photo 1) Photo 1 Controller cover fixing screws Under panel fixing screws 2.
OPERA TING PROCEDURE PHOTOS 4. Removing the LEV coil (LEV -A–E) (1) Remove the controller cover . (See Photo 1) (2) Remove the under cover . (See Photo 1) (3) Remove 4 separator fixing screws (4 o 10) in the side of the branch box. (See Photo 4) (4) T ilt the separator to the board side.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Mitsubishi Electronics MXZ-8B48NA c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Mitsubishi Electronics MXZ-8B48NA - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Mitsubishi Electronics MXZ-8B48NA, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Mitsubishi Electronics MXZ-8B48NA va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Mitsubishi Electronics MXZ-8B48NA, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Mitsubishi Electronics MXZ-8B48NA.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Mitsubishi Electronics MXZ-8B48NA. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Mitsubishi Electronics MXZ-8B48NA ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
