Instruction/ maintenance manual of the product MU17NN Mitsumi electronic
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SER VICE MANUAL SPLIT -TYPE AIR CONDITIONERS CONTENTS 1. FEA TURES ·························································3 2. TECHNICAL CHANGES ····································4 3.
OB192--1.qxp 23/6/97 11:44 PM Page 2.
3 1 FEA TURES Models Cooling capacity SEER MS09NW 8,500Btu/h 10.2 MS12NN 12,300/12,600Btu/h 1 1.3/1 1.3 MS15NN 14,300/14,600Btu/h 10.5/10.5 MS17NN 15,900/16,100Btu/h 10.
4 2 P ART NAMES AND FUNCTIONS 3 MS09NW , MS12NN, MS15NN, MS17NN REMOTE CONTROLLER MS09EW ➔ MS09NW 1. Indoor unit has changed. (Outline dimension changes. 31-1/8” o 5-3/8” o 14-3/16”(W o D o H) ➔ 32-1/16” o 7-3/16” o 10-13/16(W o D o H) 2.
5 INDOOR UNIT MS09NW Operation section MS12NN Emergency operation switch Emergency operation switch OUTDOOR UNIT MU12NN MU15NN MU17NN MU09NW (When the front panel is opened) MS09NW MS09NW MS12NN, MS15NN, MS17NN MS12NN, MS15NN, MS17NN MS12NN MS15NN MS17NN OB192--1.
6 4 Notes w 1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB Operating Range ITEM MODELS MS09NW MS12NN Cooling capacity Power consumption EER [SEER] INDOOR UNIT MODEL External finish Power supply Max. fuse size (time delay) Min.
7 Notes w 1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB Operating Range ITEM MODELS MS15NN MS17NN Cooling capacity Power consumption EER [SEER] INDOOR UNIT MODEL External finish Power supply Max. fuse size (time delay) Min.
8 25 MAX. HEIGHT DIFFERENCE Models MS09NW MS12NN MS15NN MS17NN Additional piping Max. length : ft A 49 Gas [ 3/8 [ 5/8 Piping size O.D. : in. Length of connecting pipe : in. Liquid [ 1/4 Indoor unit 16-15/16 Outdoor unit 0 MAX. REFRIGERANT PIPING LENGTH OB192--1.
9 DA T A 5 Models Indoor air Outdoor intake air DB temperature ( ˚F ) MS09NW 71 67 63 71 67 63 71 67 63 71 67 63 TC 10.4 9.9 9.3 15.4 14.6 13.7 17.9 16.9 15.9 19.7 18.7 17.5 SHC 5.9 6.9 7.7 1 1.6 10.4 8.9 9.2 1 1.0 12.5 10.2 12.1 13.7 TPC 0.75 0.71 0.
10 2. PERFORMANCE CURVE NOTE : A point on the curve shows the reference point. MS09NW MS12NN MU09NW MU12NN MS15NN MS17NN MU15NN MU17NN 71 67 63 71 67 63 71 67 63 71 67 63 Total power consumption (kW) .
11 3. CONDENSING PRESSURE AND SUCTION PRESSURE Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows the reference point MU09NW MU09NW 86 F 80.
12 Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows the reference point MU12NN MU12NN 86 F 80 75 70 86 F 80 75 70 300 (PSIG) 280 260 240 .
13 86 F 80 75 70 86 F 80 75 70 300 320 (PSIG) 280 260 240 220 200 180 160 68 70 75 80 85 90 95 100 104 F Condensing pressure Outdoor ambient temperature Indoor DB temperature Indoor DB temperature (PS.
14 300 320 (PSIG) 280 260 240 220 200 180 160 68 70 75 80 85 90 95 100 104 F Condensing pressure Outdoor ambient temperature Indoor DB temperature Indoor DB temperature (PSIG) 40 50 60 70 80 90 68 (20.
15 MS09NW INDOOR UNIT OUTDOOR UNIT 115V 60Hz, 1 [ Field installed 115V 60Hz, 1 [ SIGNAL WIRE 2 wire 12V DC MS12/15/17NN INDOOR UNIT OUTDOOR UNIT 115V 60Hz, 1 [ Field installed 208/230V 60Hz, 1 [ SIGNAL WIRE 2 wire 12V DC 4. ST ANDARD OPERA TION DA T A MS09NW Cooling 8,500 0.
16 5. OPERA TING RANGE (1) POWER SUPPL Y Models MS09NW MS12NN MS15NN MS17NN MU09NW MU12NN MU15NN MU17NN Indoor unit Outdoor unit Rating 115V 60Hz 1 [ 208/230V 60Hz 1 [ Guaranteed Voltage Min. 103V — Max. 127V Min. 198V 208V 230V Max. 253V 6.
17 6 MS09NW MU09NW INDOOR UNIT OUTDOOR UNIT 30-13/16 32-1/16 10-13/16 2-3/8 2-3/16 6-5/16 11/16 24-5/8 5-1/8 3-5/16 8-7/8 8-7/8 5-1/4 1-5/8 7-3/8 3-5/16 12-11/16 12-3/8 3-11/16 1/8 1-13/16 7-3/16 8-11/16 10-3/8 3/8 2-9/16 1/4-19-11/16 5/8 1-1/8 3-15/16 1/4 3-9/16 2-13/16 3/16 7-3/16 3/8-16-15/16 1-3/8 O.
18 MS12NN, MS15NN, MS17NN MU12NN, MU15NN, MU17NN INDOOR UNIT OUTDOOR UNIT 2-3/8 1-9/16 5-15/16 7/16 o 13/16 25-1/2 8-9/16 11-3/16 10-13/16 11-11/16 13/16 1/8 17-11/16 17-11/16 17-1/4 13-7/8 39-15/16 2-15/16 12-5/8 1-15/16 2-3/16 30-1/2 7-1/2 6-5/16 11/16 7-1/2 3/16 5/16-19-11/16 1/2-16-15/16 1-15/16 O.
19 7 MS09NW MU09NW MODEL WIRING DIAGRAM MODEL WIRING DIAGRAM INDOOR UNIT OUTDOOR UNIT GROUND VL T 2 1 TB N L1 BLK YL W RED POWER SUPPL Y 1 15V 1 phase 60Hz T AB12 AUTO REST ART ASSY TO OUTDOOR UNIT CONNECTING WIRES DC12V NR1 1 TRANS HIC1 MV POWER MONITOR, RECEIVER P .
20 MS12NN, MS15NN, MS17NN MODELS WIRING DIAGRAM MU12NN, MU15NN, MU17NN MODELS WIRING DIAGRAM INDOOR UNIT OUTDOOR UNIT DSAR GRN/YLW TO OUTDOOR UNIT CONNECTING WIRES DC12V POWER SUPPLY 115V 1 phase 60Hz.
21 8 Indoor heat exchanger Indoor heat exchanger Refrigerant pipe 3/8 (option) (with heat insulator) Refrigerant pipe 5/8 (option) (with heat insulator) Refrigerant pipe 1/4 (option) (with heat insula.
22 9 MICROPROCESSOR CONTROL Once the controls are set, the same operation mode can be repeated by simply turning the OPERA TE/ST OP button ON. Indoor unit receives the signal with a beep tone. When the system turned off, 3-minute time delay will operate to protect system from overload and compressor will not restart for 3 minutes.
23 w 1 After the system restarts by the remote controller , the system operates with the previous set temperature regardless of the initial set temperature.
24 NOTE : Coil frost prevention during COOL mode of “I FEEL CONTROL” There are two types of controls in coil frost prevention. 1 1 T emperature control <MS09NW> When the indoor coil thermistor RT12 reads 39°F or below for 5 minutes, the coil frost prevention mode starts.
25 Operation time chart Example NOTE ● Coil frost prevention during DRY mode of “I FEEL CONTROL” The operation is as same as coil frost prevention during COOL mode of “I FEEL CONTROL” excepting the indoor fan is OFF . ● During coil frost prevention the indoor fan speed becomes Lo and the outdoor fan is OFF .
26 6. AUT O V ANE OPERA TION (1) V ane motor drive MS series is equipped with a stepping motor for the vane. The rotating direction, speed, and angle of the motor are con- trolled by plus signals (approx. 12V) transmitted from indoor microprocessor . (2) The auto vane angle changes as follows by pressing the V ANE CONTROL button.
27 (3) Positioning The vane will once swings to the vane stopper as below to confirm the standard position and then set to the desired angle. The positioning is decided as follows. (a) When the OPERA TE/ST OP button is pressed. (POWER ON/OFF) (b) When the vane control change AUTO to MANUAL.
28 7. TIMER OPERA TION 1. How to set the timer . (1) Press OPERA TE/ST OP button to start the air conditioner . (2) Check that the current time is set correctly .
29 8. EMERGENCY -TEST OPERA TION When the remote controller is missing, has failed or the batteries run down, press the EMERGENCY OPERA TION switch on the front of the indoor unit. The unit will start and the OPERA TION INDICA T OR lamp will light. The first 30 minutes of operation will be the test run operation.
30 10 The P .C.board has the print “J1” and “J2”. Jumper wires are mounted to each “J1” and “J2”. Cut “J1” and “J2” according to the number of indoor unit as shown in T able 1. After modification, push the RESET button near the MIN-button on the remote controller .
31 1 1 TROUBLESHOOTING 1 1-1 Cautions on troubleshooting 1 1-1-1 Before troubleshooting, check the followings: 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for mis-wiring. 1 1-1-2 T ake care the followings during servicing.
32 1 1-2 Instruction of troubleshooting Indoor unit oper- ates. Outdoor unit doesn’t operate. Outdoor unit operates in only T est Run mode. Outdoor unit does not operate even in T est Run mode. Check room temperature thermistor . Refer to “Check of outdoor unit” on page 36.
33 Measure the resistance between the terminals with a tester . (Coil wiring temperature14°F ~ 104°F) Measure the resistance between the terminals with a tester . (Coil wiring temperature14°F ~ 104°F) Measure the resistance between the terminals with a tester .
34 Check of indoor fan motor A Inodoor fan does not operate. T urn OFF power supply . Check connector (Fan motor) visually . Repair indoor fan motor . Disconnect lead wires from connector (Fan motor) on indoor electronic control P .C. board. Measure resistance between lead wires No.
35 Y es Y es Y es No Y es Y es Y es No No Check of receiver P .C. board B Indoor unit operates by pressing the Emergency operation switch, but does not operate with the remote controller . Replace batteries.(see page 31.) T urn a radio to AM and press switch on remote controller .
36 Check of indoor electronic control P .C. board C The unit doesn’t operate with the remote controller . Also, the operation indicator doesn’t light up by pressing the emergency ON/OFF switch. Replace fuse. 1.Pull out power supply cord. 2.Measure resistance between CN201 on electronic con- trol P .
37 TEST POINT DIAGRAM AND VOL T AGE MS09NW Indoor electronic control P .C. board CN201 No.1 V aristor(NR1 1) Fuse AC250V 3.0A Room temperature thermistor (RT1 1) Indoor coil thermistor (RT12) T imer s.
38 TEST POINT DIAGRAM AND VOL T AGE MS12NN, MS15NN, MS17NN Indoor electronic control P .C. board Fuse AC250V 3.0A Power supply input AC1 15V + -- } DC5V Indoor coil thermistor (RT12) T ime short mode .
39 12 OPERA TING PROCEDURE PHOTOS 1. Removing the front panel (1) Remove the screws caps of the front panel. Remove the screws. (2) Pull the panel down to your side slightly and unhook the catches at the top. 2. Removing the electronic control P .C. board and the display P .
40 OPERA TING PROCEDURE PHOTOS 3. Removing the electrical box (1) Remove the front panel. (Refer to 1) (2) Remove the electrical cover . (3) Disconnect the connector of the indoor coil thermistor . (4) Disconnect the motor connector (CN21 1) and the vane motor connector (CN151) on the electronic control P .
41 OPERA TING PROCEDURE PHOTOS 1. Removing the front panel (1) Remove the screw caps at the bottom of the front panel. Remove the screws. (2) Pull the down of the front panel to your side slightly and unhook the catches at the top of the front panel. 2.
42 OPERA TING PROCEDURE PHOTOS 3. Removing the indoor fan motor and the line flow fan (1) Remove the front panel. (2) Remove the electrical box. (3) Unhook the catch on the both sides of the nozzle assem- bly . (4) Remove the nozzle assembly . (5) Remove the screws of the bearing support.
43 OPERA TING PROCEDURE PHOTOS 1. Removing the cabinet (1) Remove screws securing the top panel. (2) Remove the screw securing the service panel. (3) Remove screws securing the cabinet. (4) Remove the service panel,and remove the screw from the insides.
44 OPERA TING PROCEDURE PHOTOS 3. Removing the compressor (1) Remove the lead clamps. (2) Remove the screws fixing the relay panel. (3) Remove the screw fixing the service port. (4) Remove the terminal cover . (5) Pull out the lead from the compressor terminal.
45 OPERA TING PROCEDURE PHOTOS 1. Removing the cabinet (1) Remove the screws of the cabinet. (2) Hold the bottom of the cabinet on the both side to remove the cabinet. 2. Removing the electrical parts (1) Remove the service panel and the cabinet. (2) Remove the following parts.
46 PHOTOS 3. Removing the outdoor fan motor (1) Remove the cabinet. (Refer to 1) (2) Disconnect the connector and remove the clamp of fan motor lead wire. (3) Remove the propeller nut and remove the propeller fan. (4) Remove screws securing the fan motor .
47 13 INDOOR UNIT STRUCTURAL P ARTS MS09NW (WH) No. Parts No. Parts Name Symbol in Wiring Diagram MS09NW (WH) Remarks (Drawing No.) Q'ty / set 1 2 3 4 5 6 FRONT PANEL(WH) GRILLE(WH) AIR FILTER BO.
48 INDOOR UNIT ELECTRICAL P ARTS MS09NW (WH) No. Parts No. Parts Name Symbol in Wiring Diagram MS09NW (WH) Remarks (Drawing No.) Q'ty / set 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 NOZZLE(.
49 Part numbers that are circled are not shown in the illustration. OUTDOOR UNIT STRUCTURAL P ARTS MU09NW No. Parts No. Parts Name Symbol in Wiring Diagram MU09NW Remarks (Drawing No.
50 OUTDOOR UNIT FUNCTIONAL P ARTS AND ELECTRICAL P ARTS MU09NW No. Parts No. Parts Name Symbol in Wiring Diagram MU09NW Remarks (Drawing No.) Q'ty / set 1 2 3 4 5 PROPELLER FAN OUTDOOR FAN MOTOR COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR TERMINAL BLOCK 1 1 1 1 1 RA6W23 - 55 µ F/220VAC 5.
51 INDOOR UNIT STRUCTURAL P ARTS MS12NN (WH) MS15NN (WH) MS17NN (WH) No. Parts No. Parts Name Symbol in Wiring Diagram Remarks (Drawing No.) Q'ty / set 1 2 3 4 5 6 7 FRONT PANEL(WH) FRONT PANEL(W.
52 No. Parts No. Parts Name Symbol in Wiring Diagram Remarks (Drawing No.) Q'ty / set 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NOZZLE(WH) VANE(WH) DRAIN HOSE INDOOR FAN MOTOR INDOOR FAN MOTOR RUBBER MOUNT AUTO RESTART ELECTRONIC CONTROL P.
53 No. Parts No. Parts Name Symbol in Wiring Diagram Remarks (Drawing No.) Q'ty / set 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 CABINET GRILLE SERVICE PANEL OUTDOOR HEAT EXCHANGER OUTDOOR H.
54 ACCESSOR Y AND REMOTE CONTROLLER P ARTS MS09NW (WH) MS12NN (WH) MS15NN (WH) MS17NN (WH) 1 2 No. Parts No. Parts Name Symbol in Wiring Diagram MS09NW, MS12NN MS15NN, MS17NN (WH) Remarks (Drawing No.) Q'ty / set 1 2 REMOTE CONTROLLER REMOTE CONTROLLER HOLDER 1 1 E02 268 426 E02 141 083 OB192--2.
55 14 10ft 16ft 23ft 33ft 10ft 16ft 23ft 33ft 49ft 3/8 5/8 1/4 C 13/16 D 1-1/16 C 1-7/32 D 1-1/16 MAC - 440PI MAC - 441PI MAC - 442PI MAC - 443PI MAC - 670PI MAC - 671PI MAC - 672PI MAC - 673PI MAC - 674PI MS09NW MS12NN MS15NN MS17NN 0 1 0 1 3 Pipe length Cross-section Part No.
New publication, effective May 1997. Specifications subject to change without notice. C C Copyright 1997 MITSUBISHI ELECTRIC ENGINEERING CO.,L TD. Issued in May 1997 NO.
3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024 Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904 www.mrslim.com Specifications are subject to ch ange w ithout notice.
An important point after buying a device Mitsumi electronic MU17NN (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Mitsumi electronic MU17NN yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Mitsumi electronic MU17NN - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Mitsumi electronic MU17NN you will learn all the available features of the product, as well as information on its operation. The information that you get Mitsumi electronic MU17NN will certainly help you make a decision on the purchase.
If you already are a holder of Mitsumi electronic MU17NN, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Mitsumi electronic MU17NN.
However, one of the most important roles played by the user manual is to help in solving problems with Mitsumi electronic MU17NN. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Mitsumi electronic MU17NN along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
