Related Manuals for Fujitsu AOUH09LMAS1
Summary of Contents for Fujitsu AOUH09LMAS1
- Page 1 AIR CONDITIONER Wall mounted type SERVICE MANUAL INDOOR ASUH09LMAS ASUH12LMAS OUTDOOR AOUH09LMAS1 AOUH12LMAS1 SR_AS058EF_04 2022.10.05...
- Page 2 • Product specifications and design are subject to change without notice for future improvement. • For further details, please check with our authorized dealer. Trademarks ™ FGLair is trademark of Fujitsu General Limited in the United States, other countries or both. ™ Google Play is trademark of Google LLC. ®...
- Page 3 CONTENTS 1. GENERAL INFORMATION 2. TECHNICAL DATA AND PARTS LIST 3. TROUBLESHOOTING 4. CONTROL AND FUNCTIONS 5. FILED WORKING...
- Page 5 1. GENERAL INFORMATION 2022.10.05 SR_CH01_AS058EF_02...
- Page 6 CONTENTS 1. GENERAL INFORMATION 1. Specifications....................01-1 1-1. Indoor unit ........................01-1 1-2. Outdoor unit........................01-3 2. Dimensions....................01-4 2-1. Indoor unit ........................01-4 2-2. Outdoor unit........................01-6...
- Page 7 1. Specifications 1-1. Indoor unit Wall mounted Type Inverter heat pump Model name ASUH09LMAS ASUH12LMAS Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V k→ 2.64 3.52 Rated Btu/h 9,000 12,000 Cooling k→ 1.00—3.20 1.00—3.90 Min.—Max.
- Page 8 Wall mounted Type Inverter heat pump Model name ASUH09LMAS ASUH12LMAS °F (°C) 64 to 90 (18 to 32) Cooling Operation range 80 or less Heating °F (°C) 60 to 86 (16 to 30) ™ Remote controller type →ireless (→ired, Mobile app* [FGLair ] [option]) NOTES:...
- Page 9 1-2. Outdoor unit Type Inverter heat pump Model name AOUH09LMAS1 AOUH12LMAS1 Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current Cooling 954 (1,620) 1,065 (1,810) Airflow rate CFM (m Heating 954 (1,620) 1,065 (1,810) Type ×...
- Page 10 2. Dimensions 2-1. Indoor unit ¢ Models: ASUH09LMAS and ASUH12LMAS Unit: in (mm) 8-3/4 (222) 32-13/16 (834) 1/8 (3.0) 14-1/8 (359) 16-7/16 (418) 19-3/8 (492) (32-13/16 [834]) 2-5/8 (67) 12-7/8 (327) 12-7/8 (327) 4-7/16 (113) Outline of indoor unit for pipe inlet Ø 2-9/16 (65) for pipe inlet Ø...
- Page 11 Installation space requirement Provide sufficient installation space for product safety. Unit: in (mm) 2 (40) or more 3 (70) or more Wall hook bracket 5 (107) or more Outline of the indoor unit 8 (183) or more 60 (1,500) or more A: Install so that the flare connection part is outdoors.
- Page 12 2-2. Outdoor unit ¢ Models: AOUH09LMAS1 and AOUH12LMAS1 Unit: in (mm) 4-M10 hole 22-13/16 (580) 4-5/16 (109) Pitch of bolts for installation Top view 3/4 (19) 31-7/16 (799) 2-11/16 (68) 1/2 (13) 11-7/16 (290) 1-5/16 (33) 1-3/16 (30) Side view...
- Page 13 2. TECHNICAL DATA AND PARTS LIST 2022.10.05 SR_CH02_AS058EF_02...
- Page 14 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Indoor unit parts list..................02-2 2-1. Models: ASUH09LMAS and ASUH12LMAS..............02-2 3. Outdoor unit parts list.................02-6 3-1. Models: AOUH09LMAS1 and AOUH12LMAS1..............02-6 4. Accessories ....................02-10 4-1. Indoor unit ........................02-10 4-2. Outdoor unit........................02-10 5. Optional parts ...................02-11 5-1.
- Page 15 • Service parts information and design are subject to change without notice for product improve- ment. • For the latest information of the service parts, refer to our Service Portal. https://fujitsu-general.force.com/portal/ • Precise figure of the service parts listed in this manual may differ from the actual service parts. - (02-1) -...
- Page 16 2. Indoor unit parts list 2-1. Models: ASUH09LMAS and ASUH12LMAS ¢ Exterior parts - (02-2) - 2-1. Models: ASUH09LMAS and ASUH12LMAS 2. Indoor unit parts list...
- Page 17 Item no. Part no. Part name Service part 9388142005 Bracket panel ♦ 9387471007 Louver spring ♦ 9333608006 Bush ♦ 9313951047 Conduit holder ♦ 9387714036 Step motor holder assy ♦ 9901011047 Step motor ♦ 9332861006 Shaft cover ♦ 9387590166 Drain pan total assy ♦...
- Page 18 ¢ Base, evaporator, and control - (02-4) - 2-1. Models: ASUH09LMAS and ASUH12LMAS 2. Indoor unit parts list...
- Page 19 Item no. Part no. Part name Service part 9387587128 Base assy ♦ 9383765056 →LAN adapter holder assy ♦ 9711732002 Main PCB (For 09 model) ♦ 9711732019 Main PCB (For 12 model) ♦ 9387488043 Cable guide ♦ 9711146076 Display assy ♦ 9711147011 Indicator PCB ♦...
- Page 20 3. Outdoor unit parts list 3-1. Models: AOUH09LMAS1 and AOUH12LMAS1 ¢ Exterior parts and Chassis - (02-6) - 3-1. Models: AOUH09LMAS1 and AOUH12LMAS1 3. Outdoor unit parts list...
- Page 21 Motor bracket assy ♦ 9323834125 Heat exchanger unit (09 model) ♦ 9323834019 Heat exchanger unit (12 model) ♦ — Inverter assy — — Hair pin cushion — - (02-7) - 3-1. Models: AOUH09LMAS1 and AOUH12LMAS1 3. Outdoor unit parts list...
- Page 22 ¢ Compressor - (02-8) - 3-1. Models: AOUH09LMAS1 and AOUH12LMAS1 3. Outdoor unit parts list...
- Page 23 S-insulator F ♦ 9322537003 S-insulator H ♦ 9323045002 S-insulator V ♦ 9322386007 Cushion rubber ♦ 9313437008 Nut special assy ♦ — Valve bracket — — Muffler — - (02-9) - 3-1. Models: AOUH09LMAS1 and AOUH12LMAS1 3. Outdoor unit parts list...
- Page 24 →all hook bracket Cloth tape Remote controller Filter holder Remote controller Air cleaning filters holder Battery 4-2. Outdoor unit ¢ Models: AOUH09LMAS1 and AOUH12LMAS1 Part name Exterior Part name Exterior Installation manual Cable tie Drain pipe Drain cap - (02-10) - 4-1.
- Page 25 5. Optional parts 5-1. Indoor unit ¢ Controllers Exterior Part name Model name Summary Easy finger touch operation with LCD panel. Backlit LCD enables easy operation in a dark room. →ire type: Non-polar 2-wire Optional communication kit is necessary for installation. NOTE: →hen this remote controller is connected, wireless remote controller cannot be...
- Page 26 FGL sales company. For connection between indoor unit Modbus UT↔-VMS↓ with UART interface and a Modbus Converter open network. This converter can control Fujitsu Thermostat UT↔-TTR↓ General products using a third-party Converter thermostat controller. This converter is required when Network UT↔-VTG↓...
- Page 27 6. Refrigerant system diagrams 6-1. Models: AOUH09LMAS1 and AOUH12LMAS1 Heat exchanger 3-way 2-way (INDOOR) valve valve Muffler Muffler 4-way valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature)
- Page 28 7. Wiring diagrams 7-1. Indoor unit ¢ Models: ASUH09LMAS and ASUH12LMAS - (02-14) - 7-1. Indoor unit 7. →iring diagrams...
- Page 29 7-2. Outdoor unit ¢ Models: AOUH09LMAS1 and AOUH12LMAS1 - (02-15) - 7-2. Outdoor unit 7. →iring diagrams...
- Page 30 8. PC board diagrams 8-1. Models: ASUH09LMAS and ASUH12LMAS CONTROL UNIT 09 model : EZ-0201HSE 2-WIRE REMOTE CONTROL UNIT ( OPTION ) 12 model : EZ-02009HSE UTY-TWRXZ2 TERMINAL UL1007 AWG22 UL1015 AWG22 BLACK REMOTE CN301 CN14 CN300 UL1007 AWG22 WHITE CONTROLLER OUTDOOR UNIT UL1015 AWG22...
- Page 31 8-2. Models: AOUH09LMAS1 and AOUH12LMAS1 INVERTER ASSEMBLY 09, 12 models : EZ-020FHUE EMI FILTER TR-28-16-13 3 TURNS UL3271 AWG16 W400 REACTOR UL3271 13mH 8A AWG16 W401 WHITE WHITE COMPRESSOR UL3271 EMI FILTER EMI FILTER AWG16 Winding Resistance GRFC-8 GRFC-8 W402...
- Page 32 - (02-18) - 8-2. Models: AOUH09LMAS1 and AOUH12LMAS1 8. PC board diagrams...
- Page 33 3. TROUBLESHOOTING 2022.01.11 SR_CH03_AS058EF_01...
- Page 34 CONTENTS 3. TROUBLESHOOTING 1. Error code ....................03-1 1-1. How to check the error memory..................03-1 1-2. How to erase the error memory ..................03-1 1-3. Error code table (Indoor unit and wired remote controller)..........03-2 2. Troubleshooting with error code ...............03-3 2-1. E: 11.↓. Serial communication error (Serial reverse transfer error) (Outdoor unit) ..03-3 2-2.
- Page 35 1. Error code →hen a problem occurs in the system or the connected device, the error content is notified by dis- playing the code. NOTE: This function is only available in a system with indoor or IR receiver units equipped with in- dicator lamps to show the error content.
- Page 36 1-3. Error code table (Indoor unit and wired remote controller) The operation, timer, and economy indicators operate according to the error contents. For confirmation of the error contents, refer the flashing pattern as follows. Indoor unit display Wired remote Error contents Operation [ ] Timer [ ] Economy [ ]...
- Page 37 2. Troubleshooting with error code 2-1. E: 11.X. Serial communication error (Serial reverse transfer error) (Outdoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB →hen the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator...
- Page 38 Check point 4. Check serial signal (Reverse transfer signal) Check serial signal (Reverse transfer signal) BLACK WHITE BLACK WHITE • Check if indicated value swings between AC 90 V and AC 270 V at the outdoor unit terminal 1 —3. •...
- Page 39 2-2. E: 11.X. Serial communication error (Serial forward transfer error) (Indoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB →hen the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator Indoor unit...
- Page 40 Check point 4. Check serial signal (reverse transfer signal) Check serial signal (Forward transfer signal) BLACK WHITE BLACK WHITE • Check if indicated value swings between AC 30 V and AC 130 V at outdoor unit terminal 2—3. • If it is abnormal, replace main PCB. •...
- Page 41 2-3. E: 12.X. Wired remote controller communication error (Indoor unit) Operation indicator 1 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 12 Indoor unit Main PCB →hen the indoor unit cannot receive the signal from Detective actuator →ired remote controller more than 1 minute during →ired remote control...
- Page 42 2-4. E: 18.X. External communication error (Indoor unit) Operation indicator 1 time flash Timer indicator 8 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 18 External After receiving a signal from the external input and Detective actuator Indoor unit communication output PCB, the same signal has not been received for...
- Page 43 2-5. E: 32.X. Indoor unit main PCB error (Indoor unit) Operation indicator 3 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 32 →hen power is on and there is some below case. Detective actuator Indoor unit main PCB...
- Page 44 2-6. E: 35.X. MANUAL AUTO button error (Indoor unit) Operation indicator 3 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 35 Indoor unit controller PCB →hen the MANUAL AUTO button becomes on for Detective actuator Indicator PCB consecutive 30 or more seconds.
- Page 45 2-7. E: 41.X. Room temperature sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 41 Indoor unit main PCB Room temperature thermistor is open or short is Detective actuator detected always.
- Page 46 2-8. E: 42.X. Indoor unit heat exchanger sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 42 Indoor unit main PCB →hen heat exchanger temperature thermistor open or Detective actuator Heat exchanger temperature short circuit is detected.
- Page 47 2-9. E: 51.X. Indoor unit fan motor error (Indoor unit) Operation indicator 5 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 51 main PCB →hen the actual rotation number of the indoor unit fan Detective actuator Indoor unit motor is below 1/3 of the target rotation number...
- Page 48 2-10. E: 62.X. Outdoor unit main PCB error (Outdoor unit) Operation indicator 6 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 62 Access to EEPROM failed due to some cause after Detective actuator Outdoor unit Main PCB...
- Page 49 2-11. E: 64.X. PFC circuit error (Outdoor unit) Operation indicator 6 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 64 • →hen inverter input DC voltage is higher than 415 V for over 3 seconds, the compressor stops. Detective actuator Outdoor unit Main PCB...
- Page 50 2-12. E: 71.X. Discharge thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 71 Outdoor unit main PCB →hen discharge pipe temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Discharge pipe temperature...
- Page 51 2-13. E: 73.X. Outdoor unit heat exchanger thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 73 Outdoor unit main PCB →hen heat exchanger temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Heat exchanger temperature...
- Page 52 2-14. E: 74.X. Outdoor temperature thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 74 Outdoor unit main PCB →hen outdoor temperature thermistor open or short Detective actuator circuit is detected at power on or while running the Outdoor temperature thermistor...
- Page 53 2-15. E: 84.X. Current sensor error (Outdoor unit) Operation indicator 8 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 84 →hen input current sensor has detected 0 A, while inverter compressor is operating at higher than 56 rps, Detective actuator Outdoor unit main PCB...
- Page 54 2-16. E: 94.X. Trip detection (Outdoor unit) Operation indicator 9 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 94 Main PCB Protection stop by over-current generation after inverter compressor start processing completed generated consecutively 10 times.
- Page 55 2-17. E: 95.X. Compressor motor control error (Outdoor unit) Operation indicator 9 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 95 Main PCB 1. →hen running the compressor, if the detected rotor location is out of phase with actual rotor location more than 90°, the compressor stops.
- Page 56 2-18. E: 97.X. Outdoor unit fan motor error (Outdoor unit) Operation indicator 9 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 97 Main PCB 1. →hen outdoor fan rotation speed is less than 100 rpm in 20 seconds after fan motor starts, fan motor stops.
- Page 57 2-19. E: 99.X. 4-way valve error (Outdoor unit) Operation indicator 9 time flash Timer indicator 9 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 99 Indoor unit main PCB →hen the indoor heat exchanger temperature is compared with the room temperature, and either Heat exchanger temperature following condition is detected continuously two times,...
- Page 58 Check point 3. Check the solenoid coil and 4-way valve Solenoid coil • Remove CN501 from PCB and check the resistance value of coil. Resistance value is about 1.22 kΩ — 1.49 kΩ (at 68 °F (20 °C)). If it is open or abnormal resistance value, replace solenoid coil. •...
- Page 59 2-20. E: A1.X. Discharge temperature error (Outdoor unit) Operation indicator 10 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: A1 Outdoor unit main PCB Protection stop by discharge temperature ≥ 230 °F Detective actuator (110 °C) during compressor operation generated 2 times Discharge temperature thermistor...
- Page 60 Check point 5. Check the refrigerant amount Check the refrigerant leakage. Check point 6. Replace main PCB If check point 1 to 5 do not improve the symptom, replace the main PCB. - (03-26) - 2-20. E: A1.↓. Discharge temperature error (Outdoor unit) 2.
- Page 61 3. Troubleshooting without error code 3-1. Indoor unit—No power Power supply failure Forecast of cause External cause Electrical components defective Check point 1. Check installation condition • Isn’t the breaker down? • Check loose or removed connection cable. -> If abnormal condition is found, correct it by referring to the installation manual or the “DESIGN & TECHNICAL MANUAL”.
- Page 62 3-2. Outdoor unit—No power Power supply failure Forecast of cause External cause Electrical components defective Check point 1. Check installation condition • Is the circuit breaker on or off? • Check loose or removed connection cable. If abnormal condition is found, correct it by referring to the installation manual or the “DESIGN & TECHNICAL MANUAL”.
- Page 63 3-3. No operation (Power is on) Setting/ Connection failure Forecast of cause External cause Electrical components defective Check point 1. Check indoor and outdoor installation condition • Indoor unit: – Check incorrect wiring between indoor unit and remote controller. – Check if there is an open cable connection.
- Page 64 3-4. No cooling/No heating Indoor unit error Outdoor unit error Forecast of cause Effect by surrounding environment Connection pipe/Connection wire failure Refrigeration cycle failure Check point 1. Check Indoor unit • Does Indoor unit fan run in the HIGH mode? •...
- Page 65 NOTES: • Strainer normally does not have temperature difference between inlet and outlet as shown be- low. Pipe (In) Pipe (Out) • If there is a difference like shown below, there is a possibility of inside clogged. In this case, re- place the strainer.
- Page 66 3-5. Abnormal noise Abnormal installation (indoor unit/outdoor unit) Forecast of cause Fan failure (indoor unit/outdoor unit) Compressor failure (outdoor) Diagnosis method when abnormal noise is occurred Abnormal noise is coming from Outdoor Abnormal noise is coming from Indoor unit. unit. (Check and correct followings) (Check and correct followings) •...
- Page 67 3-6. Water leaking Erroneous installation Forecast of cause Drain hose failure Diagnosis method when water is spitting Diagnosis method when water leak occurs • Is main unit installed in stable condi- tion? Is the filter clogged? • Is main unit broken or deformed at the time of transportation or maintenance? MPa MPa •...
- Page 68 4. Service parts information 4-1. Compressor Diagnosis method of compressor (If outdoor unit LED displays error, refer to troubleshooting) Does not start up Stops soon after starting up Abnormal noise Check if vibration noise by Is there open or loose con- Is there open or loose con- loose bolt or contact noise of nection cable?
- Page 69 4-2. Inverter compressor Check point 1. Check connection • Check terminal connection of compressor (loose or incorrect wiring) C (W) S(V) (BLACK) (WHITE) Main PCB R(U) (RED) • Check terminal connection of main PCB (loose or incorrect wiring) Main PCB W400(U) W401(V) W402(W) BLACK...
- Page 70 4-3. Outdoor unit Electronic Expansion Valve (EEV) Check point 1. Check connections Check connection of connector. (Loose connector or open cable) NOTE: For details of wiring diagram, refer to "→iring diagrams" in Chapter 2. TECHNICAL DATA AND PARTS LIST on page 02-14. Check point 2.
- Page 71 Check point 6. Check strainer • Strainer normally does not have temperature difference between inlet and outlet as shown be- low. Pipe (In) Pipe (Out) • If there is a difference like shown below, there is a possibility of inside clogged. In this case, replace the strainer.
- Page 72 4-4. Indoor unit fan motor Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) If fan or bearing is abnormal, replace it. Check point 2. Check resistance of indoor fan motor Refer to below.
- Page 73 4-5. Outdoor unit fan motor Check point 1. Check rotation of fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) If fan or bearing is abnormal, replace it. Check point 2. Check resistance of outdoor fan motor (P650) Refer to below.
- Page 74 5. Thermistor resistance values 5-1. Indoor unit ¢ Room temperature thermistor Temperature °F (°C) Resistance (kΩ) Voltage (V) 14.0 (-10.0) 58.25 0.73 23.0 (-5.0) 44.03 0.93 32.0 (0.0) 33.62 1.15 41.0 (5.0) 25.93 1.39 50.0 (10.0) 20.18 1.66 59.0 (15.0) 15.84 1.94 68.0 (20.0)
- Page 75 5-2. Outdoor unit ¢ Discharge temperature thermistor Temperature °F (°C) Resistance (kΩ) Voltage (V) -22.0 (-30.0) 1,000.13 0.06 -12.0 (-25.0) 720.28 0.09 -4.0 (-20.0) 525.51 0.12 5.0 (-15.0) 388.12 0.16 14.0 (-10.0) 289.97 0.22 23.0 (-5.0) 219.01 0.28 32.0 (0.0) 167.12 0.36 41.0 (5.0)
- Page 76 ¢ Heat exchanger temperature thermistor Temperature °F (°C) Resistance (kΩ) Voltage (V) -22.0 (-30.0) 1,078.85 0.02 -12.0 (-25.0) 777.69 0.03 -4.0 (-20.0) 567.89 0.04 5.0 (-15.0) 419.77 0.06 14.0 (-10.0) 313.87 0.08 23.0 (-5.0) 237.25 0.10 32.0 (0.0) 181.17 0.13 41.0 (5.0) 139.70 0.16...
- Page 77 4. CONTROL AND FUNCTIONS 2022.01.11 SR_CH04_AS058EF_01...
- Page 78 CONTENTS 4. CONTROL AND FUNCTIONS 1. Rotation number control of compressor...........04-1 1-1. Cooling operation ......................04-1 1-2. Heating operation ......................04-2 1-3. Dry operation ........................04-3 1-4. Rotation number of compressor at normal start-up ............04-3 1-5. Limitation of compressor rotation number by outdoor temperature.........04-4 2.
- Page 79 1. Rotation number control of compressor 1-1. Cooling operation A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation rotation number of the compressor. •...
- Page 80 1-2. Heating operation A sensor (room temperature thermistor) built in indoor unit body will usually perceive difference or variation between setting temperature and present room temperature, and controls operation rota- tion number of compressor. • If the room temperature is 11 °F (6.0 °C) lower than a set temperature, the operation rotation num- ber of compressor will attain to maximum performance.
- Page 81 1-3. Dry operation The rotation number of compressor shall change according to the temperature, set temperature, and room temperature variation which the room temperature sensor of the indoor unit has detected as shown in the table below. Zone is defined by set temperature and room temperature. •...
- Page 82 (-10°C) A zone Limitation of compressor Model name Outdoor temperature zone frequency A zone 35 rps B zone 35 rps AOUH09LMAS1 C zone 35 rps D zone 15 rps AOUH12LMAS1 E zone 15 rps F zone 36 rps • Heating mode F zone 66.2°F...
- Page 83 2. Auto changeover operation →hen the air conditioner is set to AUTO mode by remote controller, operation starts in the optimum mode from among heating, cooling, dry and monitoring modes. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set be- tween 64.4°F (18°C) and 86.0°F (30°C) in 1.8°F (1.0°C) steps.
- Page 84 Operation flow chart Start Ts: Setting temperarure Monitor mode Room temp. > Ts+3.6°F(2°C)? Room temp. < Ts-3.6°F(2°C)? Middle zone Auto change over is second or more? Operation mode before the monitor mode is cooling mode? Operation mode of Heating operation Cooling operation outdoor unit: Cooling? Thermostat remains...
- Page 85 3. Fan control Tr: Room temperature Ts: Setting temperature 3-1. Indoor fan control ¢ Fan speed Indoor fan speed is defined as below. Operation mode Fan mode Speed (rpm) PO→ERFUL 1,290 HIGH 1,220 MED+ 1,140 1,060 Heating LO→ QUIET Cool air prevention S-LO→...
- Page 86 ¢ Cooling operation Switch the airflow AUTO, and indoor fan motor will run according to room temperature, as below. On the other hand, if switched in HIGH—QUIET, indoor motor will run at a constant airflow of COOL operation modes QUIET, LO→, MED, HIGH as shown in “Fan speed” above. Airflow change over (Cooling: Auto) Tr - Ts ≥...
- Page 87 ¢ Cool air prevention control (heating mode) The maximum value of the indoor fan speed is set as shown below, based on the detected tempera- ture by the indoor heat exchanger sensor on heating mode. • Normal operation Indoor heat exchanger temperature rises Indoor heat exchanger HIGH...
- Page 88 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 107.6°F (42°C) 98.6°F HIGH (37°C) 102.2°F (39°C) 93.2°F (34°C) 98.6°F (37°C) 89.6°F Cool air prevention (32°C) 86.0°F (30°C) 82.4°F S-LOW (28°C) 7 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL...
- Page 89 This outdoor unit has a DC fan motor. (Control method is different between AC and DC motors.) ¢ Fan speed Model: AOUH09LMAS1 Fan speed is defined by outdoor temperature and rotation number of compressor. • Outside air temperature zone selection...
- Page 90 Model: AOUH12LMAS1 Fan speed is defined by outdoor temperature and rotation number of compressor. • Outside air temperature zone selection Outside air Outside air temperature rises temperature drops Y zone 69.8°F ( 21°C) 66.2 °F Z zone (19°C) 53.6°F ( 12°C) 50.0 °F...
- Page 91 4. Louver control 4-1. Horizontal louver control Each time the button is pressed, the airflow direction range will change as below: Side view • Remote controller display is not changed. • Up/down airflow direction is set automatically as shown, in accordance with the type of operation selected.
- Page 92 4-3. Swing operation • To select up/down airflow swing operation →hen the swing signal is received, the horizontal louver starts to swing. – Swinging range • Cooling mode/dry mode/fan mode (1 to 3): 1 • Heating mode/fan mode (4 to 6): 3 –...
- Page 93 5. Timer operation control 5-1. Wireless remote control On/Off timer Program timer Sleep timer Weekly timer ○ ○ ○ — ¢ On/Off timer • Off timer: →hen the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
- Page 94 ¢ Sleep timer If the sleep timer is set, the room temperature is monitored and the operation is stopped auto- matically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time on. •...
- Page 95 6. Defrost operation control Tn: Outdoor unit heat exchanger temperature Ta: Outdoor temperature Tn10: Temperature at 10 minutes after compressor start Tnb: Temperature before 5 minutes Triggering condition • The defrost operation starts when outdoor unit heat exchanger temperature sensor detects the temperature lower than the values shown below.
- Page 96 6-1. Defrost operation in heating operation stopped If the outdoor unit is frosted when stopping the heating operation, it stops after performing the auto- matic defrosting operation. In this time, if the indoor unit operation lamp flashes slowly (6 sec on/2 sec off), the outdoor unit al- low the heat exchanger to defrost, and then stop.
- Page 97 7. Various control 7-1. Auto restart →hen the power was interrupted by a power failure etc. during operation, the operation contents at that time are memorized and when the power is recovered, operation is automatically started with the memorized operation contents. Operation contents memorized when the power is interrupted Operation mode Setting temperature...
- Page 98 7-3. Forced cooling operation The outdoor unit may not operate depending on the room temperature. →hen FORCED COOLING OPERATION button is pressed more than 10 seconds, forced cooling operation starts as shown in the table below. Operation mode Cooling Fan mode HIGH Timer mode Continuous (no timer setting available)
- Page 99 7-6. POWERFUL operation The PO→ERFUL operation starts by pressing PO→ERFUL button on the remote controller. The indoor unit and outdoor unit operate at maximum power as shown in the table below. Compressor frequency Maximum Fan mode PO→ERFUL Cooling Horizontal louver setting Heating Release condition: •...
- Page 100 7-10. Electronic expansion valve control The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the table below. Operation mode Pulse range Cooling/dry mode Between 52 and 480 pulses Heating mode NOTE: At the time of supplying the power to the outdoor unit, the initialization of the electronic ex- pansion valve is operated (528 pulses are input to the closing direction).
- Page 101 7-13. Unit status monitoring and the detected value indication The wired remote controller can monitor the indoor and outdoor units' status and display the detect- ed result as a relevant ID. For details of the display method, refer to the Chapter of “Display Sensor Values” in the Installation Manual of →ired Remote Controller (Touch Panel).
- Page 102 Available Sensor ID Sensor ID Item Unit Remarks 0: Off, 1: On Requested cooling strength On/Off NOTE: The value is output even if 00: — (External output) the function setting or rotary switch is not set. 0: Off, 1: On External heater On/Off (External NOTE: The value is output even if 00: —...
- Page 103 8. Various protections 8-1. Discharge gas temperature over-rise prevention control The discharge gas temperature sensor (discharge thermistor: outdoor unit side) detects the dis- charge gas temperature. • →hen the discharge temperature becomes higher than the trigger condition, the compressor fre- quency is decreased as the table below, and it continues to decrease until the discharge tempera- ture becomes lower than the trigger condition.
- Page 104 The rotation number of compressor returns according to the operation mode, when the current be- comes lower than the release value. ¢ Model: AOUH09LMAS1 Operation mode Outdoor temp. (Ta) Trigger condition Release condition 122.0°F (50°C) ≤...
- Page 105 Trigger condition 5°F (-15°C) Release condition 14°F (-10°C) 8-6. High temperature and high pressure release control The compressor is controlled as follows. ¢ Models: AOUH09LMAS1 and AOUH12LMAS1 Indoor unit heat exchanger Indoor unit heat exchanger temperature rises temperature drops 145.4°F (63°C) 131.0°F (55°C)
- Page 106 - (04-28) - 8-6. High temperature and high pressure release control 8. Various protections...
- Page 107 5. FILED WORKING 2022.10.05 SR_CH05_AS058EF_02...
- Page 108 CONTENTS 5. FILED WORKING 1. Function settings ..................05-1 1-1. Function settings by using remote controller ..............05-1 1-2. Custom code setting for wireless remote controller ............05-10 2. External input and output.................05-11 2-1. External input........................05-12 2-2. External output ......................05-14 2-3. Combination of external input and output ..............05-16 2-4.
- Page 109 1. Function settings To adjust the functions of this product according to the installation environment, various types of function settings are available. NOTE: Incorrect settings can cause a product malfunction. 1-1. Function settings by using remote controller Some function settings can be changed on the remote controller. After confirming the setting proce- dure and the content of each function setting, select appropriate functions for your installation envi- ronment.
- Page 110 NOTES: • The air conditioner custom code is set to prior to shipment. • If you do not know the air conditioner custom code setting, try each of the custom codes ( ) until you find the code that operates the air conditioner. - (05-2) - 1-1.
- Page 111 ¢ Contents of function setting Each function setting listed in this section is adjustable in accordance with the installation environ- ment. NOTE: Setting will not be changed if invalid numbers or setting values are selected. Function setting list Function no. Functions Filter sign 30/31...
- Page 112 2) Room temperature control for indoor unit sensor NOTE: Before performing this setting, refer to Function 95. Depending on the installed environment, correction of the room temperature sensor may be re- quired. Select the appropriate control setting according to the installed environment. The temperature of the room temperature sensor is corrected as follows: Corrected temp.
- Page 113 3) Room temperature control for wired remote controller sensor NOTE: Before performing this setting, refer to Function 95. Depending on the installed environment, correction of the wire remote temperature sensor may be required. Select the appropriate control setting according to the installed environment. To change this setting, set Function 42 to “Both“...
- Page 114 6) Remote controller custom code (Only for wireless remote controller) The indoor unit custom code can be changed. Select the appropriate custom code. Function number Setting value Setting description Factory setting ♦ 7) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description...
- Page 115 10) Switching functions for external output terminal Functions of the external output terminal can be switched. For details, refer to “External input and output”. Function number Setting value Setting description Factory setting Operation status ♦ 01—04 Cooling thermostat On Heating operation Operation/Stop 07—08 Cooling thermostat On...
- Page 116 13) Outdoor temperature zone boundary temperature A Setting required if changing of the outdoor temperature setting for heat pump prohibition zone is re- quired when auxiliary heater control by outdoor temperature 1 and 2 are performed on the indoor unit. For details, refer to “External heater output” in Chapter 2-4.
- Page 117 16) Heat pump backup setting Enables or disables the heat pump backup instruction from the outdoor unit. This function will be usable provided that the corresponding outdoor unit is connected. Function number Setting value Setting description Factory setting Disable ♦ Enable 17) Emergency heat for external output terminal Enables or disables emergency heat input.
- Page 118 1-2. Custom code setting for wireless remote controller To interconnect the air conditioner and the wireless remote controller, assignment of the custom code for the wireless remote controller is required. NOTE: Air conditioner cannot receive a signal if the air conditioner has not been set for the custom code.
- Page 119 2. External input and output External input and output PCB Indoor unit PCB CN47 (Ext. out) CN65 (Ext. in/out PCB) CN46 (Ext. in) SW301 SW302 Rotary switch CN314 CN313 CN312 CN311 CN310 CN308 Input External input External output Connector Input select signal Operation/Stop —...
- Page 120 2-1. External input →ith using external input function, some functions on this product can be controlled from an external device. • “Operation/Stop” mode or "Forced stop" mode can be selected with function setting of indoor unit. • A twisted pair cable (22A→G) should be used. Maximum length of cable is 492 ft (150 m). •...
- Page 121 ¢ External Input and Output PCB The indoor unit Operation/Stop can be set by using the input connector on the PCB. • Input select: Use either one of these types of connectors according to the application. (Both types of connec- tors cannot be used simultaneously.) –...
- Page 122 2-2. External output Use an external output cable with appropriate external dimension, depending on the number of ca- bles to be installed. ¢ Indoor unit • A twisted pair cable (22A→G) should be used. Maximum length of cable is 82 ft (25 m). •...
- Page 123 ¢ External Input and Output PCB • A twisted pair cable (22A→G) should be used. Maximum length of cable is 82 ft (25 m). • Output voltage: High DC 12 V±2 V, Low 0 V. • Permissible current: 50 mA •...
- Page 124 2-3. Combination of external input and output By combining the function setting of the indoor unit and rotary switch setting of the External Input and Output PCB, you can select various combinations of functions. Combination examples of external input and output are as follows: External input Indoor unit External Input and Output PCB...
- Page 125 External output Indoor unit External Input and Output PCB Function Rotary Mode setting CN47 CN310 CN311 CN312 Indoor unit fan 60-00 Operation/Stop Operation/Stop Error status operation status Indoor unit fan External heater 60-00 Operation/Stop Error status operation status output Cooling Indoor unit fan External heater 60-01...
- Page 126 2-4. Details of function ¢ Control input function • When function setting is “Operation/Stop” mode 1 – In the case of “Edge” input: Function Rotary SW on External External input Input signal Command setting Input and Output PCB Operation External Input and 46-00 CN313 Output PCB...
- Page 127 • When function setting is “Forced stop” mode – In the case of “Edge” input: Function Rotary SW on External External input Input signal Command setting Input and Output PCB Forced stop External Input and 46-02 CN313 Output PCB Normal CN313 Forced stop Normal...
- Page 128 • When function setting is “Operation/Stop” mode 2 – In the case of “Edge” input: Function Rotary SW on External External input Input signal Command setting Input and Output PCB Operation External Input and 46-03 CN313 Stop (R.C. Output PCB disabled) CN313 Operation...
- Page 129 • Forced thermostat off function Rotary SW on Input Function setting / External Input External input Command signal and Output PCB 60-00 / 2 60-02 / 4 60-05 / 7 Thermostat 60-06 / 8 External Input and CN313 Output PCB 60-08 / A 60-09 / B 60-10 / C...
- Page 130 ¢ Control output function • Operation/Stop status Rotary SW on Output Function setting / External Input External output Command signal and Output PCB 60-00 / 1 Operation 60-00 / 2 Output of indoor unit CN47 60-06 / 8 Stop 60-00 / 1 Operation 60-09 / B External Input and...
- Page 131 • Indoor unit fan operation status Rotary SW on Output Function setting / External Input External output Command signal and Output PCB Fan run 60-10 / C Output of indoor unit CN47 Fan stop 60-00 / 2 60-01 / 3 60-05 / 7 Fan run CN311...
- Page 132 ¢ External heater output Function setting Indoor unit Wired R. C. Control Primary heater Auxiliary heater Control switching external heaters Sensor activation* No. 61 Auxiliary heater Heat pump 61-00 — External device* control 1 Auxiliary heater Heat pump External device 61-01 —...
- Page 133 • Design and install external heater appropriately with considering its protection. • Inappropriate designing and installation of external heater may cause a fire by emitted heat from the external heater. • Fujitsu General Ltd. is not responsible for inappropriate designing or installation of external heating device. - (05-25) - 2-4.
- Page 134 Auxiliary heater control 1 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off • Error occurred •...
- Page 135 Heat pump prohibition control Perform heating by external heater only. Indoor unit is continuous thermostat off. Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
- Page 136 Auxiliary heater control by outdoor temperature 1 This control selects heat pump or external heater according to the outdoor temperature. →hen out- door temperature is high, the heating is performed by using heat pump only. Operation Condition Heater on Heater is on as shown in following diagram of heating temperature.
- Page 137 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Heat pump Combination zone prohibition only zone Outdoor temperature zone * zone Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
- Page 138 Auxiliary heater control by outdoor temperature 2 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
- Page 139 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Combination zone Outdoor temperature zone * prohibition zone Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
- Page 140 Auxiliary heater control by outdoor temperature 3 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
- Page 141 • Operation status Heat pump only zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Combination zone Outdoor temperature zone * Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
- Page 142 Auxiliary heat pump control • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off •...
- Page 143 Auxiliary heat pump control by outdoor temperature 1 • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
- Page 144 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Combination zone Outdoor temperature zone * prohibition zone Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
- Page 145 Auxiliary heat pump control by outdoor temperature 2 • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
- Page 146 • Operation status Heat pump prohibition zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Combination zone Outdoor temperature zone * Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
- Page 147 Auxiliary heat pump control by outdoor temperature 3 • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
- Page 148 • Operation status Heat pump prohibition zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Combination zone Outdoor temperature zone * Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
- Page 149 ¢ Heating thermostat on for humidifier Indoor unit Function External output setting Situation Mode Rotary SW Heating Indoor unit fan Heating thermostat on operation thermostat on no. 60 status 60-05 CN47 Example of 60-06 CN312 individual Not used 60-07 CN311 connection 60-08 CN310...