Fujitsu AOA72LALT Design & Technical Manual Download Page 7

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Easy service & maintenance

Outdoor unit

Indoor unit

Consolidated electrical

components make maintenance

easy

Maintenance of electrical

components, valves, and

compressor parts from

the front is possible.

Movable PCB panel that allows for

easier maintenance work behind

the PCB

Split front panel allows for

maintenance from top or

bottom of the outdoor unit

Easy-to-read 7-segment LED display

which explains operational and

trouble status

Fan unit

Left and Right fan motors can be removed

separately which has made servicing of

the indoor unit easier.

Summary of Contents for AOA72LALT

Page 1: ...DESIGN TECHNICAL MANUAL SINGLE INDOOR OUTDOOR AO A72LALT AO A90LALT AR C72LHTA AR C90LHTA AIR CONDITIONER Duct type ...

Page 2: ...1 INDOOR UNIT DTR_AR061E_03 2013 11 08 DUCT TYPE AR C72LHTA AR C90LHTA ...

Page 3: ...7 FAN PERFORMANCE AND CAPACITY 01 15 8 OPERATION NOISE 01 19 8 1 NOISE LEVEL CURVE 01 19 8 2 SOUND LEVEL CHECK POINT 01 20 9 ELECTRIC CHARACTERISTICS 01 21 10 SAFETY DEVICES 01 22 11 EXTERNAL INPUT OUTPUT 01 23 11 1 EXTERNAL INPUT 01 23 11 2 EXTERNAL OUTPUT 01 24 12 FUNCTION SETTINGS 01 29 12 1 INDOOR UNIT 01 29 12 2 INDOOR UNIT Setting by remote controller 01 31 12 3 WIRED REMOTE CONTROLLER 01 34...

Page 4: ...onsumption has been reduced by 25 compared to previous models by using a compact and high performance DC fan motor High efficiency operation is realized by using a sine wave DC inverter control Significantly greater efficiency is realized by use of a large capacity DC twin rotary compressor with substantially increased refrigerant intake and compression efficiency Heat exchange efficiency is signi...

Page 5: ...ure range selected by the installer can range between 50 to 250Pa A three speed fan High Medium and Low allows accurate airflow control A decrease in the power consumption of the indoor unit has been realised by optimizing the control of the indoor fan motor rotation frequency Low static pressure High static pressure Fan motor speed Low speed High speed 3900 0 50 100 150 200 250 300 4100 4300 4500...

Page 6: ...Z2 The introduction of a peak power consumption mode control a 4 step outdoor operation control to cut down energy usage at peak energy usage times Performance drops by reducing the power consumption preferentially Level 1 Performs operation which suppresses the power consumption to almost 0 by stopping the compressor Level 2 Performs operation which suppresses the power consumption to 50 of the r...

Page 7: ...s valves and compressor parts from the front is possible Movable PCB panel that allows for easier maintenance work behind the PCB Split front panel allows for maintenance from top or bottom of the outdoor unit Easy to read 7 segment LED display which explains operational and trouble status Fan unit Left and Right fan motors can be removed separately which has made servicing of the indoor unit easi...

Page 8: ...ction of blue fin treatment to the outdoor unit s heat exchanger Improvement of piping length z z Improvement of low outdoor ambient temperature performance z z Blue ﬁn heat exchanger Standard chromate protection Cobalt Blue protection Aluminium base material Hydrophilic coating Previous model New model 50m 75m Previous model New model Cooling 0 C 5 C Heating 10 C 15 C ...

Page 9: ...ler Weekly timer Setback timer Weekly timer Setback timer At Weekly timer Set back timer setup Easy to understand operation z z Variable timer control The operation display sections are zoned according to time and operation enabling variable programming to match application Simple installation z z Components are compatible with standard switch boxes Flat back construction allows equipment to be in...

Page 10: ...WEEKLY TIMER Set the current time 7 DAY DAY OFF button Temporarily cancels of one day timer 8 SET BACK button Pressed to select the set back timer 9 Set time button Pressed to set time 10 TIMER DELETE button The schedule of a weekly timer is deleted 11 TIMER SET button Sets the date hour minute and on off time 12 Vertical airflow direction and swing button Push for two seconds to change the swing ...

Page 11: ... 107500 Input power Cooling Rated kW 6 25 7 82 Max 9 80 12 10 Heating Rated 6 27 8 24 Max 9 80 12 10 Current Cooling Rated A 9 6 11 9 Heating Rated 9 6 12 5 EER Cooling kW kW 3 25 3 20 COP Heating 3 60 3 40 Moisture removal l h pints h 4 5 9 5 6 0 12 7 Maximum operating current Cooling A 22 8 25 8 Heating 22 8 25 8 Fan Air flow rate Cooling High m3 h 4300 4850 Med 3750 4250 Low 3150 3600 Heating H...

Page 12: ... 01 09 DUCT TYPE AR C72 90LHTA DUCT TYPE AR C72 90LHTA DIMENSIONS 444 MODEL AR C72LHTA Unit mm ...

Page 13: ... 01 10 DUCT TYPE AR C72 90LHTA DUCT TYPE AR C72 90LHTA MODEL AR C90LHTA Unit mm ...

Page 14: ...m the bottom of the unit 450 20 or more Service space Maintenance hole MAINTENANCE HOLE Unit mm a If maintenance work is to be done from the top keep the space of the more than 450 mm between the indoor unit and ceiling b If maintenance work is to be done from the bottom side the maintenance hole needs to be larger than the outside dimension of the indoor unit 890 or more 700 or more 30 or more 50...

Page 15: ... 01 12 DUCT TYPE AR C72 90LHTA DUCT TYPE AR C72 90LHTA WIRING DIAGRAMS 555 MODEL AR C72LHTA AR C90LHTA ...

Page 16: ...9 18 40 15 13 7 83 19 61 15 18 7 91 20 22 16 39 7 95 21 43 16 33 8 03 22 65 17 39 8 10 46 15 16 14 14 8 51 16 89 14 23 8 64 17 46 15 47 8 69 18 62 15 52 8 77 19 19 16 76 8 82 20 34 16 69 8 91 21 50 17 78 8 99 AFR 80 8 Indoor temperature CDB 18 21 23 25 27 29 32 CWB 12 15 16 18 19 21 23 Outdoor temperature CDB TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP TC SHC IP 5 21 66 18 51 4 85 ...

Page 17: ...7 55 15 10 28 05 6 78 27 38 6 92 26 71 7 06 26 05 7 20 25 38 7 31 20 15 29 08 6 81 28 38 6 95 27 69 7 09 27 00 7 23 26 31 7 34 24 18 29 23 6 66 28 53 6 80 27 84 6 94 27 14 7 07 26 44 7 18 AFR 80 8 Indoor temperature CDB 16 18 20 22 24 Outdoor temperature CDB CWB TC IP TC IP TC IP TC IP TC IP 15 16 20 51 8 48 20 02 8 66 19 53 8 84 19 04 9 01 18 55 9 19 10 11 23 90 9 02 23 33 9 20 22 76 9 39 22 19 9...

Page 18: ...imit Lo LSP mode Lo Normal SP mode LSP mode Upper limit Normal SP mode Upper limit Lo HSP mode3 HSP mode3 Upper limit 300 250 200 150 100 50 0 Static pressure Pa Airflow 2 000 2 500 3 000 3 500 4 000 4 500 5 000 m3 h 300 250 200 150 100 50 0 Static pressure Pa Airflow 3 400 3 600 3 800 4 000 4 200 4 400 4 600 4 800 5 000 m3 h Hi HSP mode3 250Pa Hi HSP mode2 200Pa Hi HSP mode1 150Pa Hi Normal SP mo...

Page 19: ...TA MODEL AR C72LHTA Cooling z z Heating z z 92 94 96 98 100 102 3 400 3 600 3 800 4 000 4 200 4 400 4 600 4 800 5 000 capacit䡕 Airflow m3 h Capacity 92 94 96 98 100 102 3 400 3 600 3 800 4 000 4 200 4 400 4 600 4 800 5 000 m3 h Airflow capacity Capacity ...

Page 20: ... HSP mode3 HSP mode3 Lower limit Med HSP mode3 Hi Normal SP mode Med Normal SP mode Hi LSP mode Med LSP mode Normal SP mode Lower limit Lo LSP mode Lo Normal SP mode LSP mode Upper limit Normal SP mode Upper limit Lo HSP mode3 HSP mode3 Upper limit Hi HSP mode3 250Pa Hi HSP mode2 200Pa Hi HSP mode1 150Pa Hi Normal SP mode 72Pa Hi LSP mode 50Pa Available air flow rate range High level 3 700 3 900 4...

Page 21: ...EL AR C90LHTA Cooling z z Heating z z 92 94 96 98 100 102 3 700 3 900 4 100 4 300 4 500 4 700 4 900 5 100 5 300 5 500 capacity Airflow m3 h Capacity 92 94 96 98 100 102 capacit䡕 3 700 3 900 4 100 4 300 4 500 4 700 4 900 5 100 5 300 5 500 Airflow m3 h Capacity ...

Page 22: ...0 0 NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 HIGH LOW Octave band sound pressure level dB 0dB 0 0002µbar 80 70 60 50 40 30 20 10 0 NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 HIGH LOW Heating z z Octave band sound pressure level dB 0dB 0 0002µbar 80 70 60 50 40 30 20 10 0 NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 MODEL AR C90LH...

Page 23: ... 01 20 DUCT TYPE AR C72 90LHTA DUCT TYPE AR C72 90LHTA SOUND LEVEL CHECK POINT 88888 Microphone Measuring duct Measuring duct Set the static pressure as rating in this area 2 m 1 m 1 5 m Microphone AIR ...

Page 24: ...spec Indoor unit to outdoor unit Connection cable mm2 1 5 2 5 Limited wiring length m 50 or less 50 to 76 Note Wiring specification 1 Selected sample Selected based on Japan Electrotechnical Standard and Codes Committee E0005 2 Limited wiring length Limit voltage drop to less than 2 Increase cable gauge if voltage drop is 2 or more 3 If the transmission wire is longer than 50m use the bigger condu...

Page 25: ...0LHTA DUCT TYPE AR C72 90LHTA SAFETY DEVICES 1111 Protection form Model AR C72LHTA AR C90LHTA Circuit protection Current fuse PCB 250V 3 15A Fan motor protection Thermal protection program 100 C 15 C OFF 10 C 95 C 15 C ON 10 C ...

Page 26: ...mperature 24 C Temperature at previous operation Air flow mode AUTO Mode at previous operation Circuit diagram example z z Indoor control PC board Connector 1 2 3 Signal Field supply Make the distance from the PC board to the connected unit within 10 m Contact capacity 5VDC or more 15mA or more Please use non polar relays and switches Surely insulate with insulation tape etc since this wire is not...

Page 27: ...agram example z z Field supply Ex Display Indoor control PC board Connected unit Ex Relay unit 1 2 Signal Relay power supply V Connector Make the distance from the PC board to the connected unit within 10m Relay spec Max 24VDC 10mA to less than 500mA 10 m 24V DC ON OFF Operation Stop Indoor unit Output signal Parts Optional z z Model name UTD ECS5A Wire External output ...

Page 28: ...xample z z Field supply Ex Display Indoor control PC board Connected unit Ex Relay unit 1 2 Signal Relay power supply V Connector Make the distance from the PC board to the connected unit within 10m Relay spec Max 24VDC 10mA to less than 500mA 10 m 24V DC ON OFF Error Normal Error status Output signal Parts Optional z z Model name UTD ECS5A Wire External output ...

Page 29: ...tion control operation Circuit diagram example z z Field supply Indoor control PC board Connector 1 12 V on off 2 Signal Relay power supply Make the distance from the PC board to the connected unit within 10m Relay spec Rated 12VDC 50mA or less Ex Fan Connected unit Ex Relay unit 10 m ON OFF Operation Stop Indoor fan Output signal Parts Optional z z Model name UTD ECS5A Wire Fresh air output ...

Page 30: ...tput is on and Room Temperature Tr decrease below 10 C signal output is off Jumper wire Indoor Unit z z This is used to continue indoor unit fan operation for 1 minute after thermo OFF in heating mode 1 minute delay control set by cutting jumper wire on PCB Circuit diagram example z z Field supply Indoor unit control PC board Connector 1 12 V on off 2 Signal Relay power supply Make the distance fr...

Page 31: ...72 90LHTA CAUTION Please place an external a heater between the indoor unit and the ductwork Please be sure to use delay control of the fan Parts Optional z z Model name UTD ECS5A Wire Heater output External Heater Supply air Return air Indoorunit ...

Page 32: ...ng table The DIP switches are normally set to make the unit number 00 Factory setting Remote controller address DIP switch No 1 2 3 4 00 OFF OFF OFF OFF 01 ON OFF OFF OFF 02 OFF ON OFF OFF 03 ON ON OFF OFF 04 OFF OFF ON OFF 05 ON OFF ON OFF 06 OFF ON ON OFF 07 ON ON ON OFF 08 OFF OFF OFF ON 09 ON OFF OFF ON 10 OFF ON OFF ON 11 ON ON OFF ON 12 OFF OFF ON ON 13 ON OFF ON ON 14 OFF ON ON ON 15 ON ON ...

Page 33: ...MPER WIRE SETTING Fan delay setting JM42 z z When the indoor unit is stopped while operating in conjunction with auxiliary heater the indoor unit fan operation will continue for one minute Factory setting JM 42 JM state Connect Invalidity Disconnect Validity ...

Page 34: ...ATION Turn on the power Before turning on the power of the indoor units make sure the piping air tight test and vacuuming have been conducted Also check again to make sure no wiring mistakes were made before turning on the power FUNCTION SETTING METHOD for Wired remote controller Setting method z z 1 Press the SET TEMP buttons and FAN button simultaneously for more than 5 seconds to enter the func...

Page 35: ...ch is supplied with the remote control in accordance with the installed condition After the power is turned on perform the Function Setting on the remote control The settings may be selected between the following two Function Number or Setting Value Settings will not be changed if invalid numbers or setting values are selected 1 Static pressure 2 Room temperature control for cooling 3 Room tempera...

Page 36: ...witching Only for wired remote controller When using the Wired remote controller temperature sensor change the setting to Both 01 Factory setting Setting Description Function Number Setting Value Indoor unit 42 00 Both 01 00 Sensor on the indoor unit is active 01 Sensors on both indoor unit and wired remote controller are active Remote controller sensor must be turned on by using the remote contro...

Page 37: ... the settings stored in memory will be deleted if there is a power failure DIP SW 1 Can not be used Do not change 2 Dual remote controller setting 3 Can not be used Do not change 4 Can not be used Do not change 5 Can not be used Do not change 6 Memory backup setting ON ON OFF 1 2 3 4 5 6 Front case back side Do not use this DIP Switch DIP Switch Factory setting Number of remote controller Primary ...

Page 38: ...d by being detected the temperature accurately with built in thermo sensor Simple remote controller UTY RSN M Compact remote controller concentrates on the basic functions such as Start Stop Fan Control Temperature Setting and Operation mode OTHERS 111111 Exterior Parts name Model No Summary Remote sensor UTY XSZX New amenity space can be offered by installing the Remote sensor in the remote contr...

Page 39: ...SINGLE TYPE AO A72LALT AO A90LALT 2 OUTDOOR UNIT DTR_AO133E_02 2013 11 08 ...

Page 40: ...CTION ABOVE THE PRODUCT 02 09 4 REFRIGERANT CIRCUIT 02 10 5 WIRING DIAGRAMS 02 11 6 CAPACITY COMPENSATION RATE FOR PIPE LENGTH AND HEIGHT DIFFERENCE 02 12 7 PIPE SIZE SELECTION LIMITATION 02 14 8 ADDITIONAL CHARGE CALCULATION 02 14 9 AIR FLOW 02 15 10 OPERATION NOISE 02 16 10 1 NOISE LEVEL CURVE 02 16 10 2 SOUND LEVEL CHECK POINT 02 17 11 ELECTRIC CHARACTERISTICS 02 18 12 SAFETY DEVICES 02 19 13 E...

Page 41: ...1 FIELD SETTING SWITCHES 02 25 14 2 FUNCTION SETTINGS 02 25 14 2 1 SETTING METHOD 02 26 14 2 2 PEAK CUT MODE 02 28 14 2 3 LOW NOISE MODE 02 28 15 OPTIONAL PARTS 02 29 16 LOCALLY PROCURED PARTS 02 30 16 1 AIR DISCHARGE DUCT 02 30 16 2 SNOW HOOD 02 32 16 3 CENTRAL DRAIN PAN 02 35 2 OUTDOOR UNIT ...

Page 42: ...0 800 Motor Type Quantity DC motor 1 Output W 600 Sound pressure level Cooling High dB A 57 58 Heating High 57 59 Heat exchanger Length mm 1750 1750 Fin pitch 1 45 1 45 Rows Stages 3 60 3 60 Face area m2 2 2 2 2 Pipe type Material Grooved H pin Copper Fin Type Material Corrugate Aluminium Surface treatment Corrosion resistance Blue fin Compressor Type Quantity Twin rotary 1 Motor output kW 3 9 Cra...

Page 43: ...2 90LALT OUTDOOR UNIT AO A72 90LALT DIMENSIONS 222 MODEL AO A72LALT AO A90LALT Unit mm Top view 690 Bolt pitch 732 Bolt pitch 8 12x17 Hole 765 930 1690 1576 1339 530 Bolt pitch 80 Front view A C B Right view Left view Rear view ...

Page 44: ...upply cable port Pipe port Transmission cable port Transmission cable port 73 43 Ø 43 7 Ø 22 2 Ø 22 2 95 75 10 100 125 199 Ø 34 5 Ø 50 Power supply cable port Power supply cable port 197 42 82 80 Transmission cable port Transmission cable port Ø 43 7 Ø 22 2 Ø 22 2 Ø 34 5 Power supply cable port Power supply cable port Power supply cable port Ø 50 Pipe port ...

Page 45: ...E POSITION ACCESSORY PIPE Unit mm Unit mm Liquid valve Gas valve Ø 25 4 Ø 12 7 247 4 208 9 100 96 65 Liquid valve Gas valve 128 123 D Front view E Left view F Left view Accessory pipe A setting G Left view Accessory pipe B setting Gas Liquid 30 147 3 121 5 Gas Liquid ...

Page 46: ...e block Fig B Keep the height of foundation base over 200 mm from the floor surface Fig C The foundation base should be able to support the product and the foot width of the product should be more than 46 5 mm Depending on the installation condition vibration during the operation of the unit may cause noise and vibration Install vibration proofing materials such as rubber pads Consider the removal...

Page 47: ... 02 06 OUTDOOR UNIT AO A72 90LALT OUTDOOR UNIT AO A72 90LALT CENTER OF GRAVITY POSITION Models z z AO A72LALT AO A90LALT Unit mm Center of gravity ...

Page 48: ...event stopping of operation by short circuit and worsening of performance and high pressure protection refer to the installation space shown in the figure and secure enough space Install in sufficient space considering the carrying in route installation space maintenance space passage of people etc Do not place obstructions in the air flow outlet direction If there is an obstruction in the outlet ...

Page 49: ...cordance with the conditions shown in the figure below Ventilation resistance can be ignorable when the distance from a wall or product etc is larger than 2m When installing with the REAR of the outdoor unit facing the wall side z z Condition Necessary installation space When B 400 mm L3 200 mm When 30 B 400 mm L3 200 400 B x 3 mm Single installation Multiple installations Top view Front Rear 300 ...

Page 50: ... might decrease when the outlet duct etc are installed When an outlet duct is not installed install the product as shown below z z 1 Make the ceiling height after setting 1m or greater 2 Be sure there is no wall at the rear side 3 When installing products adjacently install up to 3 units WHEN THERE IS AN OBSTRUCTION ABOVE THE PRODUCT 33333 500mm or more Outlet duct 1000mm or more 500mm or more fro...

Page 51: ... 02 10 OUTDOOR UNIT AO A72 90LALT OUTDOOR UNIT AO A72 90LALT REFRIGERANT CIRCUIT 444 MODEL AO A72LALT AO A90LALT ...

Page 52: ... 02 11 OUTDOOR UNIT AO A72 90LALT OUTDOOR UNIT AO A72 90LALT WIRING DIAGRAMS 555 MODEL AO A72LALT AO A90LALT ...

Page 53: ...4 0 838 20 0 970 0 946 0 922 0 898 0 874 0 838 30 0 946 0 922 0 898 0 874 0 838 HEATING Pipe length m 5 7 5 10 20 30 40 50 60 75 Height difference H m 1 Indoor unit is higher than outdoor unit 30 0 977 0 966 0 956 0 946 0 930 20 0 987 0 977 0 966 0 956 0 946 0 930 10 0 997 0 987 0 977 0 966 0 956 0 946 0 930 7 5 1 000 0 997 0 987 0 977 0 966 0 956 0 946 0 930 5 1 000 1 000 0 997 0 987 0 977 0 966 ...

Page 54: ...door unit 5 1 000 1 000 0 994 0 969 0 943 0 918 0 893 0 868 0 830 7 5 1 000 0 994 0 969 0 943 0 918 0 893 0 868 0 830 10 0 994 0 969 0 943 0 918 0 893 0 868 0 830 20 0 969 0 943 0 918 0 893 0 868 0 830 30 0 943 0 918 0 893 0 868 0 830 HEATING Pipe length m 5 7 5 10 20 30 40 50 60 75 Height difference H m 1 Indoor unit is higher than outdoor unit 30 0 977 0 966 0 956 0 946 0 930 20 0 987 0 977 0 96...

Page 55: ...1 None 1 100 g 2 200 g 3 300 g 4 400 g 5 500 g 6 050 g 110 g m Size down 20 m 30 m 40 m 50 m 60 m 70 m 75 m g m Liquid Gas 12 70 1 2 22 22 7 8 None 1 100 g 2 200 g 3 300 g 4 400 g 5 500 g 6 050 g 110 g m Size up 20 m 30 m 40 m 50 m g m Liquid Gas 12 70 1 2 28 58 9 8 None 1 100 g 2 200 g 3 300 g 110 g m Size down Standard Size up Pipe diameter Liquid pipes 12 70 1 2 mm in Gas pipes 22 22 7 8 25 40 ...

Page 56: ... z MODEL AO A90LALT Cooling z z Heating z z Number of rotations r p m Air flow 730 m3 h 9300 l s 2583 CFM 5474 Number of rotations r p m Air flow 730 m3 h 9300 l s 2583 CFM 5474 Number of rotations r p m Air flow 830 m3 h 10700 l s 2972 CFM 6298 Number of rotations r p m Air flow 840 m3 h 10800 l s 3000 CFM 6357 ...

Page 57: ...requency Hz 80 70 60 50 40 30 20 10 0 63 125 250 500 1 000 2 000 4 000 8 000 NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 Heating z z Octave band sound pressure level dB 0dB 0 0002µbar Octave band center frequency Hz 80 70 60 50 40 30 20 10 0 63 125 250 500 1 000 2 000 4 000 8 000 NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 Heating z z Octave band sound p...

Page 58: ... 02 17 OUTDOOR UNIT AO A72 90LALT OUTDOOR UNIT AO A72 90LALT SOUND LEVEL CHECK POINT 111111 Microphone 1 m 1 m ...

Page 59: ... spec Selected sample Selected based on Japan Electrotechnical Standard and Codes Committee E0005 Model AO A72LALT AO A90LALT Power supply Voltage V 400 Frequency Hz 50 1 Max operating current A 22 8 25 8 Starting current A 9 6 12 5 Breaker MCCB Capacity A 30 ELCB Leakage current 30mA 0 1sec or less Outdoor unit power supply cable Power supply cable mm2 6 Ground wire mm2 6 ...

Page 60: ...C500V 25A Indoor unit protection Fuse AC250V 20A Compressor protection Thermal protection program Compressor temp OFF 112 C ON 80 C Thermal protection program Discharge temp OFF 115 C ON After 7 minutes High pressure protection Pressure switch OFF 4 2MPa ON 3 2MPa Low pressure protection Pressure sensor OFF 0 02MPa ON 0 05MPa Fan motor protection Thermal protection program OFF 100 15 C 10 ON 95 15...

Page 61: ...l name UTY XWZXZ2 Wire External input Input Output Connector Remarks Low noise mode CN131 See external input output settings for details Peak cut mode CN131 Error status CN136 Compressor status CN136 Base heater CN115 Outdoor control PC board Connected unit Connector 1 2 3 Signal Field supply Make the distance from the PC board to the connected unit within 10 m Surely insulate with insulation tape...

Page 62: ...c Power supply Use the following parts and construct a circuit like that shown above Input Signal ON Peak cut mode OFF Normal operation Set the Peak cut mode level by Push switch on the outdoor control PC board ON OFF ON OFF Input Signal Peak cut mode Parts Optional z z Model name UTY XWZXZ2 Wire External input 1 Power supply Voltage Chart sign Vcc DC 5V to 24V The current capacity About 100mA 2 S...

Page 63: ...l z z Model name UTY XWZXZ2 Wire External output Signal Outdoor control PC board Connected unit Connector 1 2 3 Field supply Make the distance from the PC board to the connected unit within 10 m Surely insulate with insulation tape etc since this wire is not used 10 m Red White Black Vcc Vcc Power supply Load Error Normal ON OFF Error status Output signal 1 Power supply Voltage Chart sign Vcc DC 2...

Page 64: ...me UTY XWZXZ2 Wire External output Signal Outdoor control PC board Connected unit Connector 1 2 3 Field supply Make the distance from the PC board to the connected unit within 10 m Surely insulate with insulation tape etc since this wire is not used 10 m Red White Black Vcc Load Vcc Power supply ON OFF Operation Stop Compressor Output signal status 1 Power supply Voltage Chart sign Vcc DC 24V or l...

Page 65: ...e External output ON OFF Operation Stop Heater Output signal status 1 Connect to pin 1 and pin 3 No connection pin2 and pin4 2 The allowable power consumption is 25W or less 3 The case of using load more than 25W have to using another method for preparation is Contactor or Relay etc 1 2 3 4 Connector Black AC240V Base heater 2 1 connected unit P C B 1 2 3 4 Connector Black AC240V Base heater 3 1 c...

Page 66: ... stopping the compressor can be done Settings will enable when input signal has been entered the external input terminal CN131 Level 2 Limited at 50 0 1 Level 3 Limited at 75 0 2 Level 4 100 0 3 41 Low noise mode Operation setting Normal operation 4 1 0 0 Noise of the outdoor unit can be kept low Set Low noise operation which will enable when the input signal has been entered the external input te...

Page 67: ... ENTER button SW109 LED105 LED104 LED105 LED104 5 Referring to the Settings List shown below press the SELECT button SW108 and display the code number of the mode you want to set on the LED105 Ex To select the Low noise operation setting LED105 LED104 LED105 LED104 Next press the ENTER button SW109 and confirm the selection of the mode you want to set LED105 LED104 LED105 LED104 A flashing display...

Page 68: ...tings are complete with the procedures described above 7 To set another function press the ENTER button SW109 in the setting completed status shown in step 5 above LED105 LED104 LED105 LED104 Repeat steps 5 and 6 above to set other functions When all settings are complete perform the operation described in sttep 8 above to exit 8 To exit FUNCTION SETTING press the ENTER button SW109 in the setting...

Page 69: ...ntact input of commercially available timer or ON OFF change over switch to CN131 connector external contact input sold separately located on the control board of outdoor unit Setting method z z Perform the following settings according to the function setting method described in previous section Set F2 in 1 FUNCTION SETTING Set 2 Set the first two digits of setting item to 41 Set 3 Set the last tw...

Page 70: ... OPTIONAL PARTS 1111 Exterior Parts name Model No Summary External connect kit UTY XWZXZ2 Use to operate the External input and output function of Outdoor unit External connect kit UTY XWZXZ4 Use to operate the External input and output function of Outdoor unit ...

Page 71: ...ion space may narrow like as consecutive unit layout be sure to fix the duct to the unit before placing the unit When the duct is installed the noise may become louder DUCT LAYOUT EXAMPLE Dimension C Minimum Maximum 862 928 Caution Make the height A of the duct opening section 500mm or greater Make the height B of the duct excluding the flange 500mm or greater Make the width dimension C of the duc...

Page 72: ...e hole at the bottom Caution Use ø5 tapping screws having a thread length of 10 to 20 mm Do not make holes anywhere other than the dowels Otherwise damage to the internal parts will cause performance degradation or trouble Caution Presence of a gap in the junction may cause performance degradation Cover to close a gap s To prevent an air leakage close a gap in the chamfered area with a steel plate...

Page 73: ...od Note that installation of the snow hood increases the height of the cabinet If space for cabinet installation is tight because of the consecutive installation of equipment install the snow hood before the cabinet When the snow hood is installed the noise may become louder EXAMPLE OF INSTALLING SNOW HOOD Caution Make the width G of the side of the snow hood 500mm or greater Provide an ample slop...

Page 74: ...ood z z The upper part of snow hood can be installed in the same manner as for the duct For details such as where to fix it see the duct installation procedure Using the fixing positions on the top panel install the components such as the frame column front panel top panel and rear panel Installing the sides of snow hood z z Before starting snow hood installation remove the screws from the externa...

Page 75: ... gap Since there is the head of the screws at this part cut a notch in the flange of the snow hood Install the snow protection foundation for the inlet not to be buried in snow To avoid snow accumulation on the snow protection foundation make the foundation as wide as the cabinet Be careful that the flange of snow hood does not get onto the stepped area Make holes in the rear panel so as to provid...

Page 76: ...s or sockets are to be used during installation install the foundation as shown in the figure below Do not use in cold regions The drain pipe may freeze DRAIN PAN INSTALLATION PROCEDURE First make screw holes in the dowels of base feet in the above figure 8 dowels in total of the front and rear ones Secure the central drain pan by tightening the screws into the holes Cabinet If a pipe or the like ...

Page 77: ...elow Keep in mind that a drain pan not having the recommended outside dimensions can cause a water leakage or cannot be installed Gaps other than the drain holes cause a water leakage Completely close all the gaps in the bottom and sides by welding No gap Drain pan No gap 10 8 60 7 10 8 60 7 Central drain pan Front View The central drain pan shall have the width of this value or more 795 or more 6...

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