Gebruiksaanwijzing /service van het product MSY-A15NA van de fabrikant Mitsubishi Electronics
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SER VICE MANUAL CONTENTS 1. TECHNICAL CHANGES ····································2 2. P ART NAMES AND FUNCTIONS ······················3 3. SPECIFICA TION ·················································4 4.
2 1 TECHNICAL CHANGES MSZ09UN ➔ MSZ-A09NA MSZ12UN ➔ MSZ-A12NA MSH15TN ➔ MSZ-A15NA MSH17TN ➔ MSZ-A17NA MSH24WN ➔ MSZ-A24NA MS15TN ➔ MSY -A15NA MS17TN ➔ MSY -A17NA MS24WN ➔ MSY -A24NA 1.Control method between indoor and outdoor has been changed.
3 P ART NAMES AND FUNCTIONS 2 MSZ-A09NA MSY -A15NA MSZ-A12NA MSY -A17NA MSZ-A15NA MSZ-A17NA MSZ-A24NA MSY -A24NA MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSY -A15NA MSY -A17NA Line flow fan Air outlet .
4 3 SPECIFICA TION NOTE : T est conditions are based on ARI 210/240. ❈ 1 : Rating conditions (cooling) — Indoor : 80 ˚ FDB, 67 ˚ FWB, Outdoor : 95 ˚ FDB, (75 ˚ FWB) (heating) — Indoor : 70 .
5 MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A15NA MSY-A15NA MSZ-A17NA MSZ-A17NA MSY-A17NA MSZ-A24NA MSZ-A24NA MSY-A24NA Model Mode HEAT COOL HEAT COOL HEAT COOL HEAT COOL HEAT COOL 307 307 275 353 353 318 381 381 342 381 381 342 568 568 508 16.8 16.8 15.1 19.
6 4 OUTLINES AND DIMENSIONS Unit : inch 11-3/4 4 24-9/16 30-11/16 8-1/4 3/16 2-1/8 3/4 6-1/4 2-5/16 Air in Air out Installation plate Insulation [ 1-1/8 Drain hose [ 5/8 (Connected part O.D) Liquid line [ 1/4 19-11/16 Gas line [ 3/8 16-15/16 Insulation [ 1-3/8 O.
7 10-1/4 6-1/4 3/4 2-5/16 1-7/8 5/16 12-3/8 10-1/16 1-7/8 1/8 3-7/8 6-13/16 3-7/8 6-13/16 16-5/16 16-5/16 3/16 9-15/16 31-1/8 2-3/16 42-1/16 43-5/16 12-13/16 Air out Air in Insulation [ 1-1/8 Drain hose [ 5/8 (Connected part O.
8 5 WIRING DIAGRAM MSZ-A09NA MSY -A15NA MSZ-A12NA MSY -A17NA MSZ-A15NA MSZ-A17NA MSZ-A24NA MSY -A24NA OB450-1.qxp 06.11.29 1:37 PM Page 8.
9 REFRIGERANT SYSTEM DIAGRAM 6 MSZ-A09NA MSZ-A12NA Indoor heat exchanger Flared connection Room temperature thermistor RT1 1 Indoor coil thermistor RT13(sub) Flared connection Refrigerant pipe [ 3/8 (.
10 7 SER VICE FUNCTIONS 7-2. P .C. BOARD MODIFICA TION FOR INDIVIDUAL OPERA TION A maximum of 4 indoor units with wireless remote controllers can be used in a room. In this case, to operate each indoor unit individually by each remote controller , P .
11 8-1. Cautions on troubleshooting 1. Before troubleshooting, check the following: 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for mis-wiring.
12 3. T roubleshooting procedure 1) First, check if the OPERA TION INDICA TOR lamp on the indoor unit is flashing on and off to indicate an abnormality . T o make sure, check how many times the abnormality indication is flashing on and off before starting service work.
13 Outline of the function This air conditioner can memorize the abnormal condition which has occurred once. Even though LED indication listed on the troubleshooting check table (8-4.) disappears, the memorized failure details can be recalled. This mode is very useful when the unit needs to be repaired for the abnormality which doesn't recur .
14 2. Indoor unit failure mode table NOTE : Blinking patterns of this mode differ from the ones of Troubleshooting check table (8-4.). 12-time flash 2.5-second OFF Replace the indoor electronic control P.C. board. Indoor control system It cannot properly read data in the nonvolatile memory of the indoor electronic control P.
15 Start Indoor unit operates. Outdoor unit doesn't operate. Indoor unit doesn't receive the signal from remote controller . OPERA TION INDICA TOR lamp on the indoor unit is flashing on and off. Outdoor unit operates only in T est Run operation.
16 No. 1 3 6 7 Symptom Operation indicator lamp Condition Correspondence Left lamp flashes. 0.5-second ON 0.5-second OFF Mis-Wiring or serial signal Outdoor power system Outdoor thermistors Outdoor control system Indoor coil thermistor The serial signal from the outdoor unit is not received for a maximum of 6 minutes.
17 OPERA TION INDICA TOR Not lighted Blinking Lighted No. Symptom Operation indicator lamp Condition Correspondence Abnormal point 1 MXZ type Operation mode setting Outdoor unit operates but indoor unit does not operate.
18 Check of indoor fan motor A When OPERA TION INDICA TOR lamp flashes 3-time. Indoor fan does not operate. w If more than 12 seconds or more passes after EMERGENCY OPERATION switch is pressed, the voltage mentioned above 2 goes 0V DC although the indoor electric control P.
19 Check of remote controller and receiver P .C. board B Indoor unit operates by pressing EMERGENCY OPERA TION switch, but does not operate with the remote controller . w Check if the remote controller is exclusive for this air conditioner . Ye s Replace the batteries.
20 The unit does not operate with the remote controller . Also, OPERA TION INDICA TOR lamp does not light up by pressing EMERGENCY OPERA TION switch. Check of indoor electronic control P .C. board and indoor fan motor C Yes No w 1. The fan motor connector's 1 lead wire is red, whereas 3 is black.
21 How to check mis-wiring and serial signal error D Is there rated voltage AC in the power supply? Is there any mis-wiring, poor contact, or wire disconnection of the indoor/outdoor connecting wire? W 1. Mis-wiring may damage indoor electronic control P.
22 Electromagnetic noise enters into TV sets or radios E Replace or repair the antenna. Replace or repair the coaxial cable. No No No Yes Yes No No Yes Yes Yes Is the distance between the antennas and the indoor unit within 9.91ft., or is the distance between the antennas and the outdoor unit within 9.
23 Indoor coil thermistor [RT12 (MAIN), RT13 (SUB)] Room temperature thermistor (RT1 1) T emperature ( ˚ F) Resistance (k " ) MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSY -A15NA MSY -A17NA Indoor electronic control P .C. board Release of Auto restart function Solder the Jumper wire to JR07 (Refer to 7-3.
24 6 (+)0V DC or 15V DC Indoor coil thermistor [RT12 (MAIN), RT13 (SUB)] Room temperature thermistor (RT1 1) T emperature (F ˚ ) Resistance (k " ) MSZ-A24NA MSY -24NA Indoor electronic control P .C. board Release of Auto restart function Solder the Jumper wire to JR07 (Refer to 6-3.
25 DISASSEMBL Y INSTRUCTIONS 9 (1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector has the locking mechanism. 1 Slide the sleeve. 2 Pull the terminal while pushing the locking lever . 1 Hold the sleeve, and pull out the terminal slowly .
26 2. Removing the electronic control P .C. board, the power monitor receiver P .C. board, SW P .C. board and the terminal block (1) Remove the horizontal vane, the panel (Refer to 1.) and the corner box. (2) Remove the screw of the conduit cover , and conduit cover .
27 OPERA TING PROCEDURE PHOTOS Photo 7 Photo 9 Screws of the left side of the heat exchanger 4. Removing the horizontal vane motor unit (1) Remove the horizontal vane and the panel. (Refer to 1.) (2) Remove the screws of the horizontal vane motor unit, and pull out the horizontal vane motor unit.
28 9-2.MSZ-A24NA MSY -A24NA OPERA TING PROCEDURE PHOTOS 1. Removing the front panel (1) Remove the screw caps of the front panel. Remove the screws. (2) Pull the panel down to your side slightly and unhook the catches at the top. Photo 1 Photo 2 Front panel Indoor electronic control P .
29 OPERA TING PROCEDURE PHOTOS Photo 4 Photo 6 V ane motors 4. Removing the vane motor (1) Remove the front panel. (Refer to 1.) (2) Remove the electrical cover . (Refer to 2.) (3) Remove the lead wire of vane motor .(Refer to 3.) (4) Remove the R.L. holder .
30 10 P ARTS LIST 10-1. P ARTS LIST (non-RoHS compliant) MSZ-A09NA MSY -A15NA MSZ-A12NA MSY -A17NA MSZ-A15NA MSZ-A17NA 1. INDOOR UNIT STRUCTURAL P ARTS No.
31 3. INDOOR UNIT ELECTRICAL P ARTS AND FUNCTIONAL P ARTS MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSY -A15NA MSY -A17NA 5 3 8 1 7 6 10 11 13 18 9 12 16 14 15 17 BEARING MOUNT SLEEVE BEARING DRAIN HOSE NOZZLE ASSEMBL Y NOZZLE ASSEMBL Y V ANE MOTOR UNIT (HORIZONT AL) HORIZONT AL V ANE POWER MONITOR RECEIVER P .
32 1 2 3 INDOOR HEAT EXCHANGER INDOOR HEAT EXCHANGER UNION (GAS) UNION (GAS) UNION (LIQUID) { 3/8 { 1/2 { 1/4 E02 A54 620 E02 A56 620 E02 815 666 E02 155 666 E02 151 667 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 MSZ- MSY- A09NA A12NA A15NA A17NA A15NA A17NA Q'ty/unit No.
33 MSZ-A24NA MSY -A24NA 6. INDOOR UNIT STRUCTURAL P ARTS MSZ-A24NA MSY -A24NA E02 527 970 E02 685 234 E02 888 000 E02 408 142 E02 685 067 E02 888 010 E02 534 100 E02 685 975 - E02 888 007 INST ALLA TI.
34 E02 527 302 E02 408 509 E02 001 504 E02 408 702 E02 A58 235 E02 685 040 E02 685 041 E02 527 034 E02 A58 300 E02 448 303 E02 408 303 E02 918 333 E02 918 329 E02 918 468 E02 A58 452 E02 A53 452 E02 5.
35 Model Part No. MAC-2300FT MSZ-A24NA MSY -A24NA Air cleaning filter (Anti-allergy enzyme filter:blue bellows type) 10. AIR CLEANING FIL TER (ANTI-ALLERGY ENZYME FIL TER) ● AIR CLEANING FIL TER removes fine dust of 0.01 micron from air by means of static electricity .
36 10-2. RoHS P ARTS LIST (RoHS compliant) MSZ-A09NA MSY -A15NA MSZ-A12NA MSY -A17NA MSZ-A15NA MSZ-A17NA 1. INDOOR UNIT STRUCTURAL P ARTS No. RoHS Part No.
37 3. INDOOR UNIT ELECTRICAL P ARTS AND FUNCTIONAL P ARTS MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSY -A15NA MSY -A17NA 5 3 8 1 7 6 10 11 13 18 9 12 16 14 15 17 BEARING MOUNT SLEEVE BEARING DRAIN HOSE NOZZLE ASSEMBL Y NOZZLE ASSEMBL Y V ANE MOTOR UNIT (HORIZONT AL) HORIZONT AL V ANE POWER MONITOR RECEIVER P .
38 1 2 3 G G G G G INDOOR HEAT EXCHANGER INDOOR HEAT EXCHANGER UNION (GAS) UNION (GAS) UNION (LIQUID) { 3/8 { 1/2 { 1/4 E12 A54 620 E12 A56 620 E12 815 666 E12 155 666 E12 151 667 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 MSZ- MSY- A09NA A12NA A15NA A17NA A15NA A17NA Q'ty/unit No.
39 MSZ-A24NA MSY -A24NA 6. INDOOR UNIT STRUCTURAL P ARTS MSZ-A24NA MSY -A24NA E12 527 970 E12 685 234 E12 888 000 E12 408 142 E12 685 067 E12 888 010 E12 534 100 E12 685 975 - E12 888 007 INST ALLA TI.
40 E12 527 302 E12 408 509 E12 001 504 E12 408 702 E12 A58 235 E12 685 040 E12 685 041 E12 527 034 E12 A58 300 E12 448 303 E12 408 303 E12 918 333 E12 918 329 E12 918 468 E12 A58 452 E12 A53 452 E12 5.
41 Model Part No. MAC-2300FT MSZ-A24NA MSY -A24NA Air cleaning filter (Anti-allergy enzyme filter:blue bellows type) 10. AIR CLEANING FIL TER (ANTI-ALLERGY ENZYME FIL TER) ● AIR CLEANING FIL TER removes fine dust of 0.01 micron from air by means of static electricity .
42 11 MICROPROCESSOR CONTROL Once the operation mode is set, the same operation mode can be repeated by simply turning OPERA TE/STOP (ON/OFF) button ON. Indoor unit receives the signal with a beep tone. When the system turns off, 3-minute time delay will operate to protect system from overload and compressor will not restart for 3 minutes.
43 1. Coil frost prevention Coil frost prevention is as same as COOL mode. (1 1-1.1.) 2. Low outside temperature operation Low outside temperature operation is as same as COOL mode.
44 1 1-6. AUT O CHANGE OVER ··· AUT O MODE OPERA TION (MSZ) Once desired temperature is set, unit operation is switched automatically between COOL and HEA T operation.
45 (3) Positioning The vane is once pressed to the vane stopper to confirm the standard position and then set to the desired angle. Confirming of standard position is performed in the following cases. (a) When the operation starts or finishes (including timer operation).
46 The air conditioner starts heat- ing operation appro x. 3 min utes after the v ane has moved to the horizontal position. • Sometimes the area around your f eet may not warm. T o warn the area around the feet, set the horizontal v ane to (A UTO) or the do wnward- blowing position.
47 1 1-8. TIMER OPERA TION 1. How to set the time (1) Press OPERA TE/STOP (ON/OFF) button to start the air conditioner . (2) Check that the current time is set correctly .
EMERGENCY OPERA TION switch E.O. SW Operation mode COOL HEA T (MSZ) Set temperature 75 ° F 75 ° F F an speed Medium Medium Horizontal vane Auto Auto The operation mode is indicated by the Operation .
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