Mitsubishi Electric SUZ-AA09NL-U1 Technical & Service Manual
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Mitsubishi Electric SUZ-AA09NL-U1 Technical & Service Manual

Mitsubishi Electric SUZ-AA09NL-U1 Technical & Service Manual

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SPLIT-TYPE, AIR CONDITIONERS
Technical & Service Manual
Outdoor unit
Models
SUZ-AA09NL-U1
SUZ-AA12NL-U1
SUZ-AA15NL-U1
Contents
Service manual
2. SAFETY PRECAUTION ··························· 2
3. PART NAMES AND FUNCTIONS ·········· 12
4. SPECIFICATION ····································· 13
5. OUTLINES AND DIMENSIONS ·············· 14
6. WIRING DIAGRAM ································· 15
8. DATA ······················································· 17
9. ACTUATOR CONTROL ·························· 20
10. SERVICE FUNCTION ····························· 21
11. TROUBLESHOOTING ···························· 21
12. FUNCTION SETTING ····························· 35
13. DISASSEMBLY INSTRUCTIONS ··········· 36
14. REMOTE CONTROLLER ······················· 40
R454B
Technical data
T1. SPECIFICATIONS CONNECTED TO
INDOOR UNITS ······································ 60
GRAVITY ················································ 67
T3. NOISE CRITERION CURVES ················ 68
T4. DATA ······················································· 69
T5. CORRECTION FACTORS ······················ 71
T6. CAPACITY CORRECTION RATIO CURVE
FOR PIPING LENGTH ··························· 72
T7. PART LOAD CAPACITY CHART··········· 73
ANALYSIS ············································ 109
February 2025
No. OCD879
SUZ-AA09/12/15NL

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Summary of Contents for Mitsubishi Electric SUZ-AA09NL-U1

  • Page 1: Table Of Contents

    SPLIT-TYPE, AIR CONDITIONERS February 2025 No. OCD879 Technical & Service Manual Outdoor unit R454B Models SUZ-AA09NL-U1 SUZ-AA12NL-U1 SUZ-AA15NL-U1 SUZ-AA09/12/15NL Contents Service manual Technical data 1. COMBINATION OF INDOOR AND T1. SPECIFICATIONS CONNECTED TO OUTDOOR UNITS ···································· 2 INDOOR UNITS ······································ 60 2.

  • Page 2: Combination Of Indoor And Outdoor Units

    COMBINATION OF INDOOR AND OUTDOOR UNITS Outdoor unit Heat pump type Indoor unit SUZ- Service AA09 AA12 AA15 Service Ref. Manual No. NL-U1 NL-U1 NL-U1 SLZ-AF09/12/15NL-U1 OCH857 SEZ-AD09/12/15NL-U1 HWE24090 PEAD-AA09/12/15NL-U1 HWE24030 SVZ-AP12NL-U1 − − MLZ-KX09/12NL-U1 OBH957 − MSZ-EX09/12/15NL(B/S/W)-U1 TBH238 MFZ-KX09/12/15NL-U1 OBH944 SAFETY PRECAUTION MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT...
  • Page 3 2-2. CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R454B Use a vacuum pump with a reverse fl ow check Use new refrigerant pipes. valve. In the case of using the existing pipes for R22, R410A, Vacuum pump oil may fl ow back into refrigerant cycle and be careful with the following: that can cause deterioration of refrigerant oil, etc.
  • Page 4 [1] Warning for service (1) Do not alter the unit. (2) For installation and relocation work, follow the instructions in the Installation Manual and use tools and pipe components specifi cally made for use with refrigerant specifi ed in the outdoor unit installation manual. (3) Ask a dealer or an authorized technician to install, relocate and repair the unit.

  • Page 5: Cautions For Service

    [2] Cautions for service (1) Perform service after recovering the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) If moisture or foreign matter might have entered the refrigerant piping during service, ensure to remove them. [3] Additional refrigerant charge When charging directly from cylinder (1) Check that cylinder for R454B on the market is a syphon type.
  • Page 6 [4] Cautions for unit using R454B refrigerant Basic work procedures are the same as those for conventional units using refrigerant R410A. However, pay careful attention to the following points. (1) Information on servicing (1-1) Checks on the Area Prior to beginning work on systems containing FLAMMABLE REFRIGERANTS, safety checks are necessary to ensure that the risk of ignition is minimized.
  • Page 7 (2) Repairs to Sealed Components Sealed electrical components shall be replaced. (3) Repair to intrinsically Safe Components Intrinsically safe components must be replaced. (4) Cabling Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental eff...
  • Page 8 (8) Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant.

  • Page 9: Service Tools

    [5] Service tools Use the below service tools as exclusive tools for R454B refrigerant. Tool name Specifications Gauge manifold · Only for R454B · Use the existing fitting specifications . · Use high-tension side pressure of 768.7 PSIG [5.3 MPa.G] or over. Charge hose ·...
  • Page 10 Tools for R454B (The following table shows whether conventional tools can be used or not.) Tools and materials R454B tools Can R22 tools be used ? Can R410A tools be used ? Gauge manifold Air purge, refrigerant charge Tool exclusive for R454B and operation check Charge hose Tool exclusive for R454B...
  • Page 11 WARNING Except for MFZ (Floor-standing) series For MFZ (Floor-standing) series • The mounting height of indoor unit shall be 5.9 ft (1.8 m) or more from the • Do not install the indoor unit at a place higher than 5.9 in. (150 mm). fl...

  • Page 12: Part Names And Functions

    PART NAMES AND FUNCTIONS SUZ-AA09NL-U1 SUZ-AA12NL-U1 SUZ-AA15NL-U1 Air inlet (back and side) Piping Air outlet Drain hose Drain outlet OCH879A...

  • Page 13: Specification

    SPECIFICATION Outdoor unit model SUZ-AA09NL SUZ-AA12NL SUZ-AA15NL Power supply V, phase, Hz 208/230, 1, 60 Fan motor F.L.A 0.50 Model SRB092FQFMC SRB140FQHMC Compressor Refrigeration oil oz(L)/(Model) 11.8 (0.35)/(RM68EH) Refrigerant control Linear expansion valve Cooling dB(A) Sound level Heating dB(A) Defrost method Reverse cycle in.

  • Page 14: Outlines And Dimensions

    OUTLINES AND DIMENSIONS Unit: inch(mm) REQUIRED SPACE 4 in. (100 mm) or more when front and sides of the unit are clear (AA09/12/15NL) When any 2 sides of left, right and rear of the unit are clear holes Liquid refrigerant pipe joint Refrigerant pipe (flared) Ø...

  • Page 15: Wiring Diagram

    WIRING DIAGRAM OCH879A...

  • Page 16: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM Refrigerant pipe ø3/8 (ø9.52) (AA09/12) Unit: Inch (mm) ø1/2 (ø12.7) (AA15) 4-way valve (with heat insulator) Muffler Outdoor heat exchanger Stop valve temperature (with service port) Outdoor thermistor Muffler RT68 Discharge heat Flared connection Service exchanger temperature Service port thermistor...

  • Page 17: Data

    230, 1, 60 Input 0.05 0.06 0.05 0.09 0.08 Current 0.44 0.39 0.50 0.45 0.71 0.66 Outdoor unit SUZ-AA09NL-U1 SUZ-AA12NL-U1 SUZ-AA15NL-U1 Power supply (V, phase, Hz) 230, 1, 60 Input 0.68 0.99 0.91 1.22 1.04 1.30 Current 2.74 4.14 3.72 5.07...
  • Page 18 PEAD-AA12NL-U1 PEAD-AA15NL-U1 Power supply (V, phase, Hz) 230, 1, 60 Input 0.04 0.06 0.09 Current 0.39 0.50 0.72 Outdoor unit SUZ-AA09NL-U1 SUZ-AA12NL-U1 SUZ-AA15NL-U1 Power supply (V, phase, Hz) 230, 1, 60 Input 0.67 0.89 0.89 1.21 1.13 1.19 Current 2.70 3.65...
  • Page 19 230, 1, 60 Input 0.02 0.03 0.02 0.03 0.02 0.03 Current 0.21 0.26 0.21 0.26 0.21 0.26 Outdoor unit SUZ-AA09NL-U1 SUZ-AA12NL-U1 SUZ-AA15NL-U1 Power supply (V, phase, Hz) 230, 1, 60 Input 0.67 0.77 0.95 1.17 1.20 1.42 Current 2.80 3.20 4.01 4.95...

  • Page 20: Actuator Control

    ACTUATOR CONTROL 9-1. OUTDOOR FAN MOTOR CONTROL The fan motor turns ON/OFF, interlocking with the compressor. [ON] The fan motor turns ON 5 seconds before the compressor starts up. [OFF] The fan motor turns OFF 15 seconds after the compressor has stopped running. 5 seconds 15 seconds Compressor...

  • Page 21: Service Function

    SERVICE FUNCTION 10-1. CHANGE IN DEFROST SETTING Changing defrost finish temperature <JS> To change the defrost finish temperature, cut/solder the JS wire of the outdoor inverter P.C. board. (Refer to "11-6. TEST POINT DIAGRAM AND VOLTAGE".) Defrost fi nish temperature Jumper SUZ-AA09/12/15 Soldered...
  • Page 22 11-2. TROUBLE SHOOTING CHECK TABLE error No. Symptoms Condition Remedy Abnormal point/ Condition code indication Outdoor 1-time blink Outdoor power system Overcurrent protection cut-out operates 3 consecutive times ▪Reconnect connector of compressor. within 1 minute after the compressor gets started. ▪Refer to “11-5.
  • Page 23 11-3. HOW TO PROCEED "SELF-DIAGNOSIS" Refer to "14-7. SELF-DIAGNOSIS". • Refer to the following tables for details on the error codes. [Output pattern A] Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION · · · Repeated INDICATOR lamp blink pattern Approx.

  • Page 24: Trouble Criterion Of Main Parts

    11-4. TROUBLE CRITERION OF MAIN PARTS Part name Check method and criterion Figure Defrost thermistor (RT61) Measure the resistance with a multimeter. Fin temperature Refer to “Inverter P.C. board” in "11-6. TEST POINT DIAGRAM AND thermistor (RT64) VOLTAGE”, for the chart of thermistor. Ambient temperature thermistor (RT65) Outdoor heat exchanger...

  • Page 25: Troubleshooting Flow

    11-5. TROUBLESHOOTING FLOW A How to check inverter/compressor Disconnect the connector (CN61) between compressor and the intelligent power module (IPM). Check the voltage between terminals. See 10-5. “Check of open phase”. Replace the inverter P.C. board. Are the voltages balanced? Check the compressor.
  • Page 26 D Check of compressor winding ● Disconnect the connector between the compressor and intelligent power module, and measure the resistance between the compressor terminals. <Measurement point> Measure the resistance between the lead wires at 3 points. BK - WH BK - RD WH - RD <Judgement>...
  • Page 27 G Check of outdoor thermistors Disconnect the connector of thermistor in the outdoor P.C. board (see below table), and measure the resistance of thermistor. Is the resistance of thermistor normal? Replace the thermistor except RT64. When RT64 is (Refer to "11-6.TEST POINT DIAGRAM AND VOLTAGE".) abnormal, replace the inverter P.C.
  • Page 28 I Check of outdoor fan motor Check the connection between the connector CN931 and CN932. Disconnect the connectors CN931 and CN932 from the inverter P.C. board. Is the resistance between each terminal of outdoor fan motor normal? (Refer to "11-4. TROUBLE CRITERION OF MAIN PARTS) Disconnect CN932 from the inverter P.C.
  • Page 29 J Check of power supply Disconnect the connector between compressor and intelligent power module. Turn ON power supply and press Rectify indoor/outdoor the TEST button twice on the indoor connecting wire. unit or remote controller. Is there voltage 208/230 VAC Replace the indoor Does the POWER lamp on remote electronic control P.C.
  • Page 30 L Check of inverter P.C. board Check the outdoor fan motor. (Refer to "11-5. . Check of outdoor fan motor".) Is the fuse (F901) blown on the inverter P.C. board? Check the connection of the connectors (CN931, CN932) of the outdoor fan motor. If the connection is poor, make it correct.
  • Page 31 M How to check miswiring and serial signal error Turn OFF the power supply. Is there rated voltage in the power supply? Check the power supply. Turn ON the power supply. Is there rated voltage between the outdoor terminal block S1 and S2? Check the wiring.
  • Page 32 N Check the defrost heater SUZ-AA09/12/15NL Check the following points before checking electric continuity. 1. Does the resistance of ambient temperature thermistor have the characteristics? Refer to "11-6. TEST POINT DIAGRAM AND VOLTAGE”. 2. Is the resistance of defrost heater normal? Refer to "11-4. TROUBLE CRITERION OF MAIN PARTS". 3.
  • Page 33 P Electromagnetic noise enters into TV sets or radios Is the unit grounded? Ground the unit. Is the distance between the antennas Extend the distance between the antennas and and the indoor unit within 9.91 ft., or is the indoor unit, and/or the antennas and the the distance between the antennas and outdoor unit.

  • Page 34: Inverter P.c. Board

    11-6. TEST POINT DIAGRAM AND VOLTAGE Inverter P.C. board Back side of unit DB61 R.V. coil Fuse (F801) Smoothing Fuse (F701) 260 - 370 VDC (CN721) capacitor (C61) T3.15AL250V T3.15AL250V 208/230 VAC Smoothing moothing 208/230 VAC capacitor (C62) apacitor (C62) Fuse (F62) (F62) 15 A 250 V...

  • Page 35: Function Setting

    FUNCTION SETTING 12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set as necessary 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. <Table 1>...

  • Page 36: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS <"Terminal with locking mechanism" Detaching points> The terminal which has the locking mechanism can be detached as shown below. There are two types (refer to (1) and (2)) of the terminal with locking mechanism. The terminal without locking mechanism can be detached by pulling it out. Check the shape of the terminal before detaching.
  • Page 37 OPERATING PROCEDURE PHOTOS/FIGURES Photo 4 Photo 5 Screws of the Screws of the Screw of the back panel conduit cover conduit plate 2. Removing the inverter assembly, inverter P.C. board Photo 6 Screw of the heat sink (1) Remove the cabinet and panels. (Refer to procedure 1) support and the separator (2) Disconnect the lead wire to the reactor and the following connectors:...
  • Page 38 OPERATING PROCEDURE PHOTOS/FIGURES * Connection procedure when attaching the inverter P.C. Photo 8 board (Photo 9) Screw of the ground 1. Connect the lead wires of the fan motor (Power) to the wire and the terminal Heat sink Heat sink support block support connector on the inverter P.C.
  • Page 39 OPERATING PROCEDURE PHOTOS/FIGURES 4. Removing the discharge temperature thermistor, Photo 10 Screw of the defrost thermistor, outdoor heat exchanger R.V. coil temperature thermistor and ambient temperature thermistor (1) Remove the top panel, cabinet and service panel. (Refer to procedure 1) (2) Disconnect the lead wire to the reactor and the following connectors: <Inverter P.C.

  • Page 40: Remote Controller

    REMOTE CONTROLLER 14-1. REMOTE CONTROLLER FUNCTIONS <PAR-41MAA> Controller interface The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen. When the system is centrally controlled, the button function guide that corresponds to the locked button will not appear.

  • Page 41: Room Temperature

    Display The main display can be displayed in two different modes: “Full” and “Basic”. The initial setting is “Full”. To switch to the “Basic” mode, change the setting on the Main display setting. (Refer to operation manual included with remote controller.) <Full mode>...

  • Page 42: Operation

    Menu structure Main menu MENU Press the button. Move the cursor to the desired item with the buttons, and press the button. SELECT Operation Vane · Louver · Vent. (Lossnay) High power Comfort Manual vane angle 3D i-see Sensor Timer menu Timer ON/OFF timer Auto-OFF timer...
  • Page 43 Continue from the previous page. Maintenance menu Error information Filter information Cleaning Auto descending panel Descending operation Descending adjustment Service menu Test run menu Test run Drain pump test run Maintenance information Model name input Serial No. input Dealer information input Initialize maintenance info.

  • Page 44: Main Menu List

    Main menu list Main Setting and display items Setting details menu Operation Vane · Louver · Vent. Use to set the vane angle. (Lossnay) • Select a desired vane setting. Use to turn ON/OFF the louver. • Select a desired setting from "ON" and "OFF." Use to set the amount of ventilation.
  • Page 45 Setting and display Main menu Setting details items Initial Display Main display Use to switch between "Full" and "Basic" modes for the Main display, and use setting setting to change the background colors of the display to black. Display Make the settings for the remote controller related items as necessary. details Clock: The initial settings are "Yes"...

  • Page 46: Controller Interface

    <PAR-FL32MA> Controller interface *For explanation purposes, all of the items Transmission area that appear in the display are shown. *All items are displayed when the Reset button is pressed. Transmission indicator Remote controller display Timer indicator Operation areas ON/OFF button Temperature setting buttons Fan Speed button (Changes fan speed) Timer Off button...
  • Page 47 <PAR-SL101A-E> Controller interface Transmission area Remote controller display Set Temperature buttons OFF/ON button Mode button (Changes operation mode) Fan Speed button (Changes fan speed) Airfl ow button (Changes up/ i-see button* down airfl ow direction) Timer ON button Menu button Timer OFF button SET/SEND button Weekly timer ON/OFF button*...

  • Page 48: Error Information

    14-2. ERROR INFORMATION When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. 1. Error code, error unit, refrigerant address, model name, and serial Error information number will appear. Error code The model name and serial number will appear only if the informa- Error unit Unit#1...
  • Page 49 · Checking the error information Maintenance menu While no errors are occurring, page 2/2 of the error information can be Error information viewed by selecting "Error information" from the Maintenance menu. Filter information Errors cannot be reset from this screen. Cleaning Main menu: RETURN Cursor...

  • Page 50: Service Menu

    14-3. SERVICE MENU Maintenance password is required 1. Select "Service" from the Main menu, and press the [SELECT] button. Main Main menu *At the main display, the menu button and select "Service" to make the maintenance setting. Service 2. When the Service menu is selected, a window will appear asking for the pass- Service menu word.

  • Page 51: Test Run Operation

    14-4. TEST RUN 14-4-1. PAR-41MAA 1. Select "Service" from the Main menu, and press the [SELECT] button. Test run Input maintenance info. Settings Check Select "Test run" with the F1 or F2 button, and press the [SELECT] button. Others : RETURN SELECT MENU RETURN...
  • Page 52 14-4-2. PAR-FL32MA Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500 V Megger and check that it is equal to or greater than 1.0 MΩ. TEST RUN Turn on the main power to the unit. TEST RUN Press the button twice continuously.
  • Page 53 14-5. FUNCTION SETTING 14-5-1. PAR-41MAA Settings menu Function setting 1. Select "Service" from the Main menu, and press the [SELECT] button. Select "Setting" from the Service menu, and press the [SELECT] button. Service menu: MENU Select "Function setting", and press the [SELECT] button. SELECT MENU RETURN...
  • Page 54 14-5-2. PAR-FL32MA Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refriger- ant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller. [Flow of function selection procedure] Flow of function selection procedure The flow of the function selection procedure is shown below.
  • Page 55 14-5-3. PAR-SL101A-E 1. Going to the function select mode Press the button for 5 seconds. (Start this operation from the status of remote controller display turned off .) [CHECK] is lit and "00" blinks. (Fig. 1) Press the button to set the "50". Direct the wireless remote controller toward the receiver of the indoor unit and press the button.

  • Page 56: Error History

    14-6. ERROR HISTORY 1. Select "Service" from the Main menu, and press the [SELECT] button. Test run Input maintenance info. Settings Check Others Select "Check" with the F1 or F2 button, and press the [SELECT] button. : RETURN SELECT MENU RETURN HOLD 2.

  • Page 57: Self-Diagnosis

    14-7. SELF-DIAGNOSIS 14-7-1. PAR-41MAA 1. Select "Service" from the Main menu, and press the [SELECT] button. Diagnosis Self check Remote controller check Select "Check" from the Service menu, and press the [SELECT] button. Service menu: MENU Cursor Select "Diagnosis" from the Check menu, and press the [SELECT] button. Select "Self check"...
  • Page 58 14-7-2. PAR-FL32MA When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. < Malfunction-diagnosis method at maintenance service> Refrigerant [Procedure] address display 1. Press the CHECK button twice. CHECK •...

  • Page 59: Remote Controller Check

    14-8. REMOTE CONTROLLER CHECK If operations cannot be completed with the remote controller, diagnose the remote controller with this function. 1. Select "Service" from the Main menu, and press the [SELECT] button. Diagnosis Self check Remote controller check Select "Check" from the Service menu, and press the [SELECT] button. Service menu: MENU Cursor Select "Diagnosis"...

  • Page 60: Indoor Units

    SPECIFICATIONS CONNECTED TO INDOOR UNITS Model name Indoor unit SLZ-AF09NL SLZ-AF12NL SLZ-AF15NL Outdoor unit SUZ-AA09NL SUZ-AA12NL SUZ-AA15NL Cooling at 95°F Max. Capacity Btu/h 9,000 12,000 15,000 Rated Capacity Btu/h 9,000 12,000 15,000 Min. Capacity Btu/h 2,300 3,000 3,600 Total Input 1,240 EER2 Btu/h/W...
  • Page 61 Model name Indoor unit MLZ-KX09NL MLZ-KX12NL Outdoor unit SUZ-AA09NL SUZ-AA12NL Cooling at 95°F Max. Capacity Btu/h 9,000 11,300 Rated Capacity Btu/h 9,000 11,300 Min. Capacity Btu/h 2,200 2,900 Total Input EER2 Btu/h/W 11.8 11.8 Moisture Removal Pints/h 0.80 0.74 Power factor SEER2 Btu/h/W 20.9...
  • Page 62 Model name Indoor unit MFZ-KX09NL MFZ-KX12NL MFZ-KX15NL Outdoor unit SUZ-AA09NL SUZ-AA12NL SUZ-AA15NL Cooling at 95°F Max. Capacity Btu/h 9,000 12,000 15,000 Rated Capacity Btu/h 9,000 12,000 15,000 Min. Capacity Btu/h 2,000 2,500 3,300 Total Input 1,150 EER2 Btu/h/W 12.6 12.6 Moisture Removal Pints/h 0.93...
  • Page 63 Model name Indoor unit MSZ-EX09NL MSZ-EX12NL MSZ-EX15NL Outdoor unit SUZ-AA09NL SUZ-AA12NL SUZ-AA15NL Cooling at 95°F Max. Capacity Btu/h 9,000 12,000 15,000 Rated Capacity Btu/h 9,000 12,000 15,000 Min. Capacity Btu/h 2,300 2,700 3,300 Total Input 1,230 EER2 Btu/h/W 12.8 12.2 12.1 Moisture Removal Pints/h...
  • Page 64 Model name Indoor unit SEZ-AE09NL SEZ-AE12NL SEZ-AE15NL Outdoor unit SUZ-AA09NL SUZ-AA12NL SUZ-AA15NL Cooling at 95°F Max. Capacity Btu/h 9,000 12,000 15,000 Rated Capacity Btu/h 9,000 12,000 15,000 Min. Capacity Btu/h 2,400 2,900 3,700 Total Input 1,130 EER2 Btu/h/W 11.8 12.1 13.2 Moisture Removal Pints/h...
  • Page 65 Model name Indoor unit PEAD-AA09NL PEAD-AA12NL PEAD-AA15NL Outdoor unit SUZ-AA09NL SUZ-AA12NL SUZ-AA15NL Cooling at 95°F Max. Capacity Btu/h 9,000 12,000 15,000 Rated Capacity Btu/h 9,000 12,000 15,000 Min. Capacity Btu/h 1,900 3,100 3,600 Total Input 1,220 EER2 Btu/h/W 13.2 12.5 12.2 Moisture Removal Pints/h...
  • Page 66 Model name Indoor unit SVZ-AP12NL Outdoor unit SUZ-AA12NL Cooling at 95°F Max. Capacity Btu/h 11,400 Rated Capacity Btu/h 11,400 Min. Capacity Btu/h 2,800 Total Input EER2 Btu/h/W 12.1 Moisture Removal Pints/h 0.85 Power factor SEER2 Btu/h/W 18.4 Heating at 47°F Max.

  • Page 67: T2. Position Of The Center Of

    POSITION OF THE CENTER OF GRAVITY T2-1. OUTDOOR UNIT Unit: inch(mm) Model SUZ-AA09NL 11-1/16 5-9/16 9-5/16 31-8/16 11-4/16 21-10/16 SUZ-AA12NL (280) (140) (240) (800) (285) (550) SUZ-AA15NL OCD879...

  • Page 68: T3 Noise Criterion Curves

    NOISE CRITERION CURVES SUZ-AA09NL SUZ-AA12NL NOTCH SPL(dB(A)) NOTCH SPL(dB(A)) LINE LINE COOLING COOLING HEATING HEATING NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR HEARING FOR NC-20 NC-20 CONTINUOUS CONTINUOUS NOISE NOISE 1000 2000...

  • Page 69: T4 Data

    DATA T4-1. PERFORMANCE CURVE Cooling performance curve INDOOR W.B. 72°F (22°C) 68°F (20°C) 64°F (18°C) 61°F (16°C) INDOOR W.B. 72°F (22°C) 68°F (20°C) 64°F (18°C) 61°F (16°C) (-5°C) (-1°C) (10°C) (21°C) (32°C) (43°C) OUTDOOR D.B.(°F) Note : This diagram shows the case where the operation frequency of a compressor is fixed. OCD879...
  • Page 70 T4-2. MAX. HEATING CAPACITY IN LOW AMBIENT TEMPERATURE SUZ-AA09/12NL 120% 100% Outdoor Temperature Degrees (°F) Outdoor Temperature Degrees (°F) % Heating Capacity 100% 100% 100% 100% SUZ-AA15NL 120% 100% Outdoor Temperature Degrees (°F) Outdoor Temperature Degrees (°F) % Heating Capacity 100% 100% 100% 100% OCD879...

  • Page 71: T5 Correction Factors

    CORRECTION FACTORS T5-1. INVERTER TYPE T5-1.1 Cooling capacity corrections Refrigerant piping length (one way: ft (m)) Model 25 (7.6) (std.) 40 (12.2) 65 (19.8) 100 (30.5) SUZ-AA09/12/15NL 0.988 0.967 T5-1.2 Heating capacity corrections Refrigerant piping length (one way: ft (m)) Model 25 (7.6) (std.) 40 (12.2)

  • Page 72: For Piping Length

    CAPACITY CORRECTION RATIO CURVE FOR PIPING LENGTH T6-1. CAPACITY CORRECTION RATIO CURVE FOR PIPING LENGTH Correction ratio of capacity according to the length of piping (cooling) 100% Indoor unit 09/12/15 class 16.4 32.8 49.2 65.6 82.0 114.8 (ft) 98.4 Actual length of refrigerant piping Correction ratio of capacity according to the length of piping (heating) 100% All capacity class...

  • Page 73: T7 Part Load Capacity Chart

    PART LOAD CAPACITY CHART SLZ-AF09NL Rated Q(Btu/h): 9,000 SUZ-AA09NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 8,216 8,216 6,162 4,108 2,100 7,693...
  • Page 74 SLZ-AF09NL Rated SUZ-AA09NL Q(Btu/h): 12,000 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 12,280 11,513 8,635 5,756 4,701 12,800 12,000 9,000 6,000 4,900 13,236 12,408...
  • Page 75 SLZ-AF12NL Rated Q(Btu/h): 12,000 SUZ-AA12NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 10,954 10,954 8,216 5,477 2,739 2,739 10,257 10,257 7,693 5,129 2,564 2,564...
  • Page 76 SLZ-AF12NL Rated SUZ-AA12NL Q(Btu/h): 15,000 1,350 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 14,391 14,391 10,793 7,196 4,701 15,000 15,000 11,250 7,500 4,900 15,511 15,511 11,633 7,755...
  • Page 77 SLZ-AF15NL Rated Q(Btu/h): 15,000 SUZ-AA15NL 1,240 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 13,693 13,693 10,270 6,846 3,423 3,286 12,822 12,822 9,616 6,411 3,205 3,077 11,701 11,701...
  • Page 78 SLZ-AF15NL Rated SUZ-AA15NL Q(Btu/h): 18,000 1,580 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 18,804 17,269 12,952 8,635 5,616 19,600 18,000 13,500 9,000 5,853 19,723 18,113 13,585 9,057...
  • Page 79 MLZ-KX09NL Rated Q(Btu/h): 9,000 SUZ-AA09NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 8,216 8,216 6,162 4,108 2,054 2,008 7,693 7,693 5,770 3,846 1,923...
  • Page 80 MLZ-KX09NL Rated SUZ-AA09NL Q(Btu/h): 12,000 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 12,472 11,513 8,635 5,756 4,893 13,000 12,000 9,000 6,000 5,100 13,443 12,408...
  • Page 81 MLZ-KX12NL Rated Q(Btu/h): 11,300 SUZ-AA12NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 10,315 10,315 7,737 5,158 2,647 9,659 9,659 7,244 4,829 2,479...
  • Page 82 MLZ-KX12NL Rated SUZ-AA12NL Q(Btu/h): 14,600 1,330 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 14,007 14,007 10,506 7,004 4,893 14,600 14,600 10,950 7,300 5,100 15,097 15,097 11,323 7,549...
  • Page 83 MFZ-KX09NL Rated Q(Btu/h): 9,000 SUZ-AA09NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 8,216 8,216 6,162 4,108 2,054 1,826 7,693 7,693 5,770 3,846 1,923...
  • Page 84 MFZ-KX09NL Rated SUZ-AA09NL Q(Btu/h): 12,000 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 12,472 11,513 8,635 5,756 4,989 13,000 12,000 9,000 6,000 5,200 13,443 12,408...
  • Page 85 MFZ-KX12NL Rated Q(Btu/h): 12,000 SUZ-AA12NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 10,954 10,954 8,216 5,477 2,739 2,282 10,257 10,257 7,693 5,129 2,564 2,137...
  • Page 86 MFZ-KX12NL Rated SUZ-AA12NL Q(Btu/h): 15,000 1,240 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 14,391 14,391 10,793 7,196 5,085 15,000 15,000 11,250 7,500 5,300 15,511 15,511 11,633 7,755...
  • Page 87 MFZ-KX15NL Rated Q(Btu/h): 15,000 SUZ-AA15NL 1,150 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 13,693 13,693 10,270 6,846 3,423 3,012 12,822 12,822 9,616 6,411 3,205 2,821 11,701 11,701...
  • Page 88 MFZ-KX15NL Rated SUZ-AA15NL Q(Btu/h): 18,000 1,360 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 19,572 17,269 12,952 8,635 6,104 20,400 18,000 13,500 9,000 6,362 20,528 18,113 13,585 9,057...
  • Page 89 MSZ-EX09NL Rated Q(Btu/h): 9,000 SUZ-AA09NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 8,216 8,216 6,162 4,108 2,100 7,693 7,693 5,770 3,846 1,966...
  • Page 90 MSZ-EX09NL Rated SUZ-AA09NL Q(Btu/h): 12,000 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 12,472 11,513 8,635 5,756 5,085 13,000 12,000 9,000 6,000 5,300 13,443 12,408...
  • Page 91 MSZ-EX12NL Rated Q(Btu/h): 12,000 SUZ-AA12NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 10,954 10,954 8,216 5,477 2,739 2,465 10,257 10,257 7,693 5,129 2,564 2,308...
  • Page 92 MSZ-EX12NL Rated SUZ-AA12NL Q(Btu/h): 15,000 1,200 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 14,391 14,391 10,793 7,196 5,085 15,000 15,000 11,250 7,500 5,300 15,511 15,511 11,633 7,755...
  • Page 93 MSZ-EX15NL Rated Q(Btu/h): 15,000 SUZ-AA15NL 1,230 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 13,693 13,693 10,270 6,846 3,423 3,012 12,822 12,822 9,616 6,411 3,205 2,821 11,701 11,701...
  • Page 94 MSZ-EX15NL Rated SUZ-AA15NL Q(Btu/h): 18,000 1,450 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 19,188 17,269 12,952 8,635 5,982 20,000 18,000 13,500 9,000 6,235 20,126 18,113 13,585 9,057...
  • Page 95 SEZ-AD09NL Rated Q(Btu/h): 9,000 SUZ-AA09NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 8,216 8,216 6,162 4,108 2,191 7,693 7,693 5,770 3,846 2,051...
  • Page 96 SEZ-AD09NL Rated SUZ-AA09NL Q(Btu/h): 12,000 1,100 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 12280 11513 8635 5756 4413 12800 12000 9000 6000 4600 13236 12408...
  • Page 97 SEZ-AD12NL Rated Q(Btu/h): 12,000 SUZ-AA12NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 10,954 10,954 8,216 5,477 2,739 2,647 10,257 10,257 7,693 5,129 2,564 2,479...
  • Page 98 SEZ-AD12NL Rated SUZ-AA12NL Q(Btu/h): 15,000 1,300 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 14,391 14,391 10,793 7,196 4,797 15,000 15,000 11,250 7,500 5,000 15,511 15,511 11,633 7,755...
  • Page 99 SEZ-AD15NL Rated Q(Btu/h): 15,000 SUZ-AA15NL 1,130 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 13,693 13,693 10,270 6,846 3,423 3,378 12,822 12,822 9,616 6,411 3,205 3,163 11,701 11,701...
  • Page 100 SEZ-AD15NL Rated SUZ-AA15NL Q(Btu/h): 18,000 1,400 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 19,764 17,269 12,952 8,635 5,982 20,600 18,000 13,500 9,000 6,235 20,729 18,113 13,585 9,057...
  • Page 101 PEAD-AA09NL Rated Q(Btu/h): 9,000 SUZ-AA09NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 8,216 8,216 6,162 4,108 2,054 1,734 7,693 7,693 5,770 3,846 1,923...
  • Page 102 PEAD-AA09NL Rated SUZ-AA09NL Q(Btu/h): 12,000 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 12,472 11,513 8,635 5,756 4,701 13,000 12,000 9,000 6,000 4,900 13,443 12,408...
  • Page 103 PEAD-AA12NL Rated Q(Btu/h): 12,000 SUZ-AA12NL 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 10,954 10,954 8,216 5,477 2,830 10,257 10,257 7,693 5,129 2,650...
  • Page 104 PEAD-AA12NL Rated SUZ-AA12NL Q(Btu/h): 15,000 1,280 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 14,391 14,391 10,793 7,196 4,893 15,000 15,000 11,250 7,500 5,100 15,511 15,511 11,633 7,755...
  • Page 105 PEAD-AA15NL Rated Q(Btu/h): 15,000 SUZ-AA15NL 1,220 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 3,423 3,205 2,925 13,693 13,693 10,270 6,846 3,286 12,822 12,822 9,616...
  • Page 106 PEAD-AA15NL Rated SUZ-AA15NL Q(Btu/h): 18,000 1,280 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 20,052 17,269 12,952 8,635 5,371 20,900 18,000 13,500 9,000 5,599 21,031 18,113 13,585 9,057...
  • Page 107 SVZ-AP12NA Rated SUZ-AA12NL Q(Btu/h): 11,400 1) COOLING Indoor W.B. 71°F / 21.7°C 67°F / 19.4°C 63°F / 17.2°C Outdoor D.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 46.1 Q(Btu/h) 10,407 10,407 7,805 5,203 2,602 2,556 9,744 9,744 7,308 4,872 2,436...
  • Page 108 SVZ-AP12NL Rated SUZ-AA12NL Q(Btu/h): 15,000 1,280 2) HEATING Indoor D.B. 77°F / 25.0°C 68°F / 20.0°C 59°F / 15.0°C Outdoor W.B. Max Rated 75% Max Rated 75% Max Rated 75% (°F) (°C) 18.3 Q(Btu/h) 14,391 14,391 10,793 7,196 4,893 15,000 15,000 11,250 7,500 5,100 15,511 15,511 11,633 7,755...

  • Page 109: T8. Earthquake-Proof Strength

    EARTHQUAKE-PROOF STRENGTH ANALYSIS Earthquake-proof strength analysis <Anchor bolt> 1.Type: SUZ Inverter Outdoor unit 2.Model name: SUZ- A 3.Specification (1) Unit mass (2) Anchor bolt 1.The total number of bolts. 2.The size and shape. "=M type 3.The axis section area per one bolt. 78 ×10 4.The total number of bolts in one side which be pulled stronger when the unit inverted.
  • Page 110 Earthquake-proof strength analysis <Anchor bolt> SUZ Inverter Outdoor unit 1.Type: 2.Model name: SUZ- A12N 3.Specification (1) Unit mass (2) Anchor bolt 1.The total number of bolts. 2.The size and shape. "=M type 3.The axis section area per one bolt. 78 ×10 4.The total number of bolts in one side which be pulled stronger when the unit inverted.
  • Page 111 Earthquake-proof strength analysis <Anchor bolt> SUZ Inverter Outdoor unit 1.Type: 2.Model name: SUZ- A15N 3.Specification (1) Unit mass (2) Anchor bolt 1.The total number of bolts. 2.The size and shape. "=M type 3.The axis section area per one bolt. 78 ×10 4.The total number of bolts in one side which be pulled stronger when the unit inverted.
  • Page 112 HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8,310, JAPAN ©Copyright 2025 MITSUBISHI ELECTRIC CORPORATION Published: Feb. 2025 No.OCD879 Specifications are subject to change without notice. Made in Japan...

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