Gebruiksaanwijzing /service van het product MSZ-GA25VA 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·················································5 4.
2 1 TECHNICAL CHANGES MSZ-A09YV - ➔ MSZ-GA22V A - MSZ-A09YV - ➔ MSZ-GA25V A - MSZ-A12YV - ➔ MSZ-GA35V A - E1 E1 E1 E1 E1 E1 1. Indication of capacity has been changed.(BTU base ➔ kW base) 2. Control method between indoor and outdoor has been changed.
3 P ART NAMES AND FUNCTIONS 2 INDOOR UNIT MSZ-GA22V A - MSZ-GA25V A - MSZ-GA35V A - E1 E1 E1 Line flow fan Air outlet Vertical vane Air inlet Display section Front panel Panel Heat exchanger Horizonta.
4 ACCESSORIES 1 2 3 4 5 6 7 Installation plate Installation plate fixing screw 4 o 25 mm Remote controller holder Fixing screw for 3 3.5 o 1.6 mm (Black) Battery (AAA) for remote controller Wireless r.
5 SPECIFICA TION 3 T3.15AL 250V MSBPC20M16 12V DC 250 " (at 25˚C) ERZV14D471 3P INDOOR UNIT Item Model Fuse Horizontal vane motor V aristor T erminal block MSZ-GA22V A - E1 MSZ-GA25V A - E1 MSZ-.
6 4 NOISE CRITERIA CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, dB re 0.
7 OUTLINES AND DIMENSIONS 5 MSZ-GA25V A - E1 Unit : mm INDOOR UNIT 155 155 335 320 41.5 215 42.5 214 3 287.5 70 55 55 55 225 225 or more 7 100 90 106 298 102 624.
8 6 WIRING DIAGRAM REFRIGERANT SYSTEM DIAGRAM 7 MSZ-GA22V A - MSZ-GA25V A - MSZ-GA35V A - E1 E1 E1 Indoor heat e xchanger Flared connection Room temperature thermistor R T11 Indoor coil thermistor R T13(sub) Flared connection Refrigerant flow in cooling Refrigerant flow in heating Refrigerant pipe [ 9.
9 SER VICE FUNCTIONS 8 8-2. 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 .C.
TROUBLESHOOTING 9 10 9-1. 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.
11 2 1 Stopper Lock. Left Insert this end first. 3. T roubleshooting procedure 1) First, check if the OPERA TION INDICA TOR lamp on the indoor unit is flashing on and of f to indicate an abnormality . T o make sure, check how many times the abnormality indication is flashing on and off before starting service work.
12 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 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 .
13 2. Indoor unit failure mode table NOTE: Blinking patterns of this mode differs from the ones of Troubleshooting check table(9-4.). 12-time flash 2.5-second OFF Replace the indoor electronic control P.C. board. Indoor control system When it cannot properly read data in the nonvolatile memory of the indoor electronic control P.
14 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 in only T est Run operation.
15 NOTE : When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection after the power ON), the indoor electronic control P .C. board turns OFF the indoor fan motor with OPERA TION INDICA TOR lamp flashing.
16 OPERA TION INDICA TOR Not lighted Blinking Lighted OPERA TION INDICA TOR Not lighted Blinking Lighted NOTE : When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection after the power ON), the indoor electronic control P .
17 Check of indoor fan motor A When OPERA TION INDICA TOR lamp flashes 3-time. Indoor fan does not operate. w If 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.
18 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 . Y es Replace the batteries.
19 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.
20 How to check mis-wiring and serial signal error D When POWER lamp flashes ON and OFF in every 0.5-second. Outdoor unit does not operate. Is there rated voltage of 230V AC in the power supply? In 3 minutes after turning ON the power supply of the outdoor unit, does the LED on the inverter P.
21 Check of installation of the horizontal vane E Start Replace the indoor electronic control P .C. board. Replace the interlock switch(Fan). Is the stopper of the horizontal vane locked to the indoor unit correctly? Y es No Is there resistance 0 " ? Relock the stopper of the horizontal vane to the indoor unit.
22 Electromagnetic noise enters into TV sets or radios F Replace the antennas. Replace the coaxial cable. No No No Yes Yes No No Yes Yes Yes Is the distance between the antennas and the indoor unit wi.
23 Indoor coil thermistor [RT12 (MAIN), RT13 (SUB)] Room temperature thermistor (RT1 1) T emperature ( : ) Resistance (k " ) MSZ-GA22V A - MSZ-GA25V A - MSZ-GA35V A - Indoor electronic control P .C. board E1 E1 E1 Release of Auto restart function Solder the Jumper wire to JR07.
24 DISASSEMBL Y INSTRUCTIONS 10 (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 .
25 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 V .A. clamp, and then the indoor/outdoor connecting wire.
26 OPERA TING PROCEDURE PHOTOS Photo 6 Photo 8 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.
27 P ARTS LIST 1 1 MSZ-GA22V A - (WH) MSZ-GA25V A - (WH) MSZ-GA35V A - (WH) 1 1-1. INDOOR UNIT STRUCTURAL P ARTS E1 E1 E1 No. Part No. Part name Remarks Symbol in Wiring Diagram Q'ty/unit 1 2 3 4.
28 1 1-3. INDOOR UNIT ELECTRICAL P ARTS AND FUNCTIONAL P ARTS MSZ-GA22V A - (WH) MSZ-GA25V A - (WH) MSZ-GA35V A - (WH) E1 E1 E1 4 2 5 3 9 ROOM TEMPERA TURE THERMISTOR V ARISTOR 1 6 22 1 1-4. INDOOR UNIT HEA T EXCHANGER 10 8 7 12 13 14 POWER MONITOR RECEIVER P .
29 BEARING MOUNT SLEEVE BEARING DRAIN HOSE NOZZLE ASSEMBL Y V ANE MOT OR UNIT (HORIZONT AL) INTERLOCK SWITCH(F AN) HORIZONT AL V ANE FUSE V ARIST OR POWER MONITOR RECEIVER P .C. BOARD HOLDER V .A. CLAMP TERMINAL BLOCK COVER TERMINAL BLOCK HOLDER TERMINAL BLOCK ELECTRONIC CONTROL P .
30 12 OPTIONAL P ARTS Model Part No. E1 E1 MAC-415FT -E MSZ-GA22V A- MSZ-GA25V A- MSZ-GA35V A- E1 Air cleaning filter (Blue bellows type) (1) Remove the catechin air filter(left one) The air cleaning filter is not attached to the right side catechin air filter (2) Remove the air cleaning filter(Blue bellows type) from the catechin air filter .
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HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, T OKYO100-8310, JAP AN C C Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,L TD Distributed in Jan. 2005. No. OB378 6 Made in Japan New publication, effective Jan. 2005 Specifications subject to change without notice.
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