Fujitsu AJ**A72LBTF Installation Instruction Sheet Download Page 4

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En-4

3. ACCESSORIES

The following installation parts are supplied. Use them as required.
Do not discard any accessories until the installation work has been completed.

Description

Drain pipe

Gasket

Joint pipe

Flange joint
assembly

Q’ty

Application

For outdoor unit drain
piping work (Heat pump
model only)

Installation between
flange joint assembly and
3-way valve

For connecting the pipe

Description

Terminal resistor

Coupler heat insulation

Binder C

Q’ty

Application

Install it on the board of
the outdoor unit (master
unit only).

For outdoor side pipe
joint

For transmission cable
binding

9374241033_IM_en_p01-17.p65

26/8/2008, 18:23

Summary of Contents for AJ**A72LBTF

Page 1: ...ORTING THE PRODUCT 6 4 3 INSTALLATION DIMENSIONS 7 4 4 INSTALLATION THE UNIT 9 4 5 SYSTEM LAYOUT 10 4 6 PIPE SELECTION 11 4 7 PIPE INSTALLATION 12 4 8 INSTALLING INSULATION 17 4 9 DRAIN PROCESSING 17 4 10 ELECTRICAL WIRING 18 4 11 FIELD SETTING 23 5 CHARGING WITH REFRIGERANT 28 5 1 SEALING TEST 28 5 2 VACUUM PROCESS 29 5 3 ADDITIONAL CHARGING 29 6 TEST RUN 31 6 1 PRE TEST RUN CHECK ITEMS 31 6 2 TE...

Page 2: ...e the piping to rupture Be sure to install the unit as prescribed so that it can withstand earthquakes and typhoons or other strong winds Improper installation can cause the unit to topple or fall or other accidents If there is a refrigerant leakage make sure that it does not exceed the concentration limit If a refrigerant leakage exceeds the concentration limit it can lead to accidents such as ox...

Page 3: ...med might possibly result in personal harm to the user or damage to property 2 PRECAUTIONS FOR USING THE ALTERNATIVE REFRIGERANT Pay careful attention to the following points Since the working pressure is 1 6 times higher than that of R22 models some of the piping and installation and service tools are special See the table in the SPECIAL TOOLS FOR R410A section Especially when replacing a convent...

Page 4: ...3 1 1 1 Application For outdoor unit drain piping work Heat pump model only Installation between flange joint assembly and 3 way valve For connecting the pipe For connecting the pipe Description Terminal resistor Coupler heat insulation Binder C Q ty 1 1 1 Application Install it on the board of the outdoor unit master unit only For outdoor side pipe joint For transmission cable binding 9374241033_...

Page 5: ...ed by the airflow coming out from the outlet noise or vibration If it must be installed in proximity to your neighbors be sure to obtain their approval If the unit is installed in a cold region that is affected by snow accumulation snow fall or freezing take appropriate measures to protect it from those elements To ensure a stable operation install inlet and outlet ducts Install the unit in an are...

Page 6: ...mouth from coming in contact with the rope Failure to use a protective plate can cause the bell mouth to become deformed or damaged Use 2 rope which are 8 m in length or longer Transporting on a forklift Fig 4 2 2 To transport the unit on a forklift slide the forks of the forklift through the opening between the unit and the delivery pallet This will enable the unit and the delivery pallet to be r...

Page 7: ... H2 300 mm the distance h2 the distance by which it exceeds H2 must be added to the L2 300 mm service space There is no limit to the wall height on the side The sides of the unit and the walls must be separated by a distance of 10 mm or more If the distance from the sides of the unit to the walls is 150 mm or less the 6 screws on the right side of the unit must be removed before installation If H1...

Page 8: ...he right side of the unit must be removed before installation If H1 600 mm then L1 500 mm If H2 300 mm then L2 300 mm If H1 600 mm then L1 500 mm h1 If H2 300 mm then L2 300 mm h2 Fig 4 3 3 2 If unit needs to install at a high front and rear wall height because of a small installation space Fig 4 3 4 There must be no obstructions on the blowing side of the fan If there are obstructions on the blow...

Page 9: ...e pipe connections into account Before securing the unit make sure the anchor bolts are tightened securely Fig 4 4 1 3 The number of outdoor units that may be connected is 1 system 3 units connected Fig 4 3 5 To install more than 1 outdoor unit system provide a distance between each refrigerant system Do not install walls at the sides Fig 4 3 5 500 mm or more 300 mm or more 1 300 mm 646 mm 678 mm ...

Page 10: ...l pipe length a e o p r t 150 m actual pipe length From the first separation tube to the farthest indoor unit o p r t 60 m actual pipe length Difference in height between outdoor units and indoor units H1 50 m For the indoor unit stated below 40 m For the outdoor unit stated below Difference in height between indoor units and indoor units H2 H3 H2 15 m H3 15 m Difference in height between outdoor ...

Page 11: ...908L 36 to 53 9 52 19 05 UTR BP090X UTR H0906L 54 to 90 12 70 22 22 UTR BP090Q 91 to 161 12 70 28 58 UTR BP180L UTR H1808L UTR BP180X UTR H1806L 162 to 180 15 88 28 58 UTR BP180Q 181 to 269 15 88 34 92 UTR BP567L 270 to 323 19 05 34 92 UTR BP567X 324 to 567 19 05 41 27 UTR BP567Q Table 4 6 5 Between separation tube to indoor unit Model code Outside diameter mm of indoor unit Liquid pipe Gas pipe 7...

Page 12: ...rming use a pipe cutter to cut them 2 Remove the burrs while holding the pipe downwards so that cuttings cannot enter the pipe 3 Place a flare on the pipe and allow the pipe to extend out of the flare as shown in Table 4 7 1 4 Use a flare tool to make a flare 5 Make sure that the flare portion D Fig 4 7 1 spreads evenly without any cracks 4 7 2 FLARE CONNECTION CAUTION Make sure cutting chips do n...

Page 13: ...re To indoor unit 0 5 m or more To indoor unit 4 7 4 PIPE ROUTING DIRECTION CAUTION Be careful not to deform or scratch the panel while opening the knockout holes After opening the knockout holes deburr the edges to prevent them from cutting the wires Horizontal line or 15 To indoor unit Pipes can be connected from 4 directions Figs 4 7 2 3 4 Knockout holes are provided so that pipes can be connec...

Page 14: ...al the pipe routing holes with putty supplied locally so that there will be no gap If small animals such as insects enter the outdoor unit they can cause a short circuit in the electrical box To prevent pipes from breaking do not make sharp bends on them The pipes may be bended with a curvature radius of 70 mm or more A pipe is likely to break if it is bent many times at the same place Do not make...

Page 15: ...eld supply Gas pipe Field supply Oil pipe Field supply Flange joint assembly Accessory Joint pipe Accessory To outdoor unit To outdoor unit To indoor unit To main pipe To indoor unit Outdoor unit Master Outdoor unit Slave 1 Outdoor unit Slave 2 Vertical or NO GOOD NO GOOD NO GOOD CAUTION Be sure to follow the installation restrictions for the outdoor unit branch kit and install it according to the...

Page 16: ... mre MASTER SLAVE 1 SLAVE 2 MASTER SLAVE 1 SLAVE 2 MASTER SLAVE 1 SLAVE 2 To indoor unit To indoor unit To indoor unit MASTER SLAVE 1 SLAVE 2 MASTER SLAVE 1 SLAVE 2 MASTER SLAVE 1 SLAVE 2 OK OK OK No Good No Good No Good To indoor unit To indoor unit To indoor unit MASTER SLAVE 1 SLAVE 2 MASTER SLAVE 1 SLAVE 2 To indoor unit To indoor unit Gas pipe Outdoor unit branch kit Less than 2 m Separation ...

Page 17: ...le 4 8 1 Selection of insulation for using an insulation material with equal heat transmission rate or below 0 040 W m k Insulation material Minimum thickness mm Pipe diameter mm Outdoor unit Gutter 10 mm or more 50 mm or more OK No Good hose Raised Wavy Fig 4 9 1 Relative humidity Drain water could leak from the outdoor unit during cooling or heating operation Provide drain processing as necessar...

Page 18: ...he outdoor unit If the electrical power is inadequate contact your electric power company Install a breaker in a location that is not exposed to high temperatures If the temperature surrounding the breaker is too high the amperage at which the breaker cuts out may decrease If a control panel is installed outdoors install a lock so that it cannot be accessed easily To provide power supply lines for...

Page 19: ... AJ A90LBTF AJ A90UBTF 100 14 5 5 42 AJ 126LBTF AJ A72UBTF 125 22 8 55 AJ 126LBTF AJ A90UBTF 125 22 8 51 AJ A90LBTF AJ A72UBTF AJ A72UBTF 150 22 8 50 AJ 126LBTF AJ 126UBTF 150 38 8 72 AJ A90LBTF AJ A90UBTF AJ A90UBTF 150 38 8 76 AJ 126LBTF AJ A90UBTF AJ A72UBTF 175 38 14 67 AJ 126LBTF AJ A90UBTF AJ A90UBTF 175 38 14 63 AJ 126LBTF AJ 126UBTF AJ A72UBTF 200 60 14 90 AJ 126LBTF AJ 126UBTF AJ A90UBTF ...

Page 20: ...cordance with the terminal nameplate After connecting the wires use cable clips to secure the wires Fig 4 10 4 Connect the wires without applying excessive tension 4 10 2 WIRING METHOD Fig 4 10 2 Example 1 In case of connected outdoor unit 400 V 3ø 50 Hz Circuit breaker Outdoor unit Power supply cable Transmission cable 230 V 1ø 50 Hz Indoor unit Power supply cable Circuit breaker Remote controlle...

Page 21: ...ircuit breaker Remote controller cable OK Remote controller cable Example 3 In case of connected three outdoor unit No Good 400 V 3ø 50 Hz Circuit breaker Outdoor unit Power supply cable No Good install a breaker for each outdoor unit No Good crossover power supply wiring prohibited Transmission cable 230 V 1ø 50 Hz Indoor unit Power supply cable Circuit breaker 9374241033_IM_en_p18 36 p65 26 8 20...

Page 22: ...r if the resistance value is abnormal It may break Transmission PCB Shielding process of transmission line Shield wires at the both end of transmission line shall be secured to each unit s frame ground with screw Be careful not to tighten the screw too much If it is tightened excessively an open circuit or breakage of terminal block may occur Control box metal cover Transmission cable Indoor unit ...

Page 23: ...h 2 3 Outdoor unit address switch 1 4 Outdoor unit address switch 2 SW4 1 Slave unit connection number switch 1 2 Slave unit connection number switch 2 3 Forbidden 4 Error reset SW5 1 Cooling ability shift switch 1 2 Cooling ability shift switch 2 3 Heating ability shift switch 1 4 Heating ability shift switch 2 SW6 1 Piping length switch 1 2 Piping length switch 2 3 Forbidden 4 Forbidden SW7 1 Mo...

Page 24: ...nits are installed and started at the same time 3 SW3 Setting SW3 1 3 2 Outdoor model Never change the DIP SW3 1 3 2 which are set up at fac tory SW3 3 3 4 Outdoor unit address The setting of SW3 3 3 4 is to be done when installing Slave 2 There is no need to make this setting on the master unit This setting is only enabled when the power is turned on SW1 1 SW1 2 Control mode Remarks OFF OFF Norma...

Page 25: ...ting can be used to provide operation to supple ment the loss created by the pipe length There is no need to make this setting on the slave unit 7 SW7 Setting SW7 1 Model Type SW7 3 Indoor unit small capacity setting If the total capacity of the connected indoor units is less than 90 of the outdoor unit capacity set this switch to ON There is no need to make this setting on the slave unit Table 4 ...

Page 26: ... 46 2 E 66 4 2 86 5 6 7 0 7 27 1 B 47 2 F 67 4 3 87 5 7 8 0 8 28 1 C 48 3 0 68 4 4 88 5 8 9 0 9 29 1 D 49 3 1 69 4 5 89 5 9 10 0 A 30 1 E 50 3 2 70 4 6 90 5 A 11 0 B 31 1 F 51 3 3 71 4 7 91 5 B 12 0 C 32 2 0 52 3 4 72 4 8 92 5 C 13 0 D 33 2 1 53 3 5 73 4 9 93 5 D 14 0 E 34 2 2 54 3 6 74 4 A 94 5 E 15 0 F 35 2 3 55 3 7 75 4 B 95 5 F 16 1 0 36 2 4 56 3 8 76 4 C 96 6 0 17 1 1 37 2 5 57 3 9 77 4 D 97 ...

Page 27: ...tor as speci fied Install 1 termination resistor within 500 meters of the overall length of the transmission line Install the termination resistor as shown in Fig 4 11 3 If multiple terminal resistors are installed the en tire transmission system may break If no resistor is installed a transmission failure may occur Terminal resistor Don t connect terminal resistor Master 1 Slave 1 Terminal resist...

Page 28: ... to 16 0 N m 125 to 160 kgf cm 12 5 to 16 0 N m 125 to 160 kgf cm 5 CHARGING WITH REFRIGERANT 5 1 SEALING TEST After connecting the pipes perform an sealing test Pressurize nitrogen gas to 4 15 MPa to perform the sealing test Recheck that the spindle of the 3 way valve are closed before performing a sealing test Fig 5 2 Pour nitrogen gas through both the liquid pipe and the gas pipe When connectin...

Page 29: ...hose and install the charging cap 5 3 ADDITIONAL CHARGING CAUTION After evacuating the system add refrigerant Do not charge the system with a refrigerant other than R410A Do not reuse recovered refrigerant Use an electronic scale to measure the charging amount of refrigerant Adding more refrigerant than the specified amount will cause a malfunction Charge refrigerant using the liquid pipe Adding r...

Page 30: ...dditional amount for pipe length 3 Calculation of additional charge refrigerant C A B Calculation example Where 3 outdoor units AJ 126LBTF AJ A90UBTF and AJ A72UBTF are connected in a system 1 Calculation of additional amount for outdoor unit A 3 70 kg 2 20 kg 2 20 kg 8 10 kg 2 Calculation of additional amount for pipe length In case refrigerant piping lengths are as below ø19 05 50 m ø15 88 25 m ...

Page 31: ...riginal setup ON OFF FOR YOUR INFORMATION If multiple refrigerant systems are connected together perform a test run by operating the DIP switch of the outdoor unit board for every refrigerant system Check that all indoor and outdoor units which are connected by piping to the same refrigerant system run properly If there is an indoor or outdoor unit that does not run or if an indoor or outdoor unit...

Page 32: ...ation Pump down completed Discharge temperature protection stopped High pressure protection stopped Low pressure protection stopped LED 2 1 2 2 LED 3 1 2 3 4 5 6 7 2 LED 4 2 LED 5 1 2 3 4 2 LED 6 2 1 2 3 Fig 7 1 1 Details of the LED lamps Refer to Fig 4 11 1 for positions on the LED circuit board Lighted continuously Display Method 0 5 sec ON 0 5 sec OFF flashing Flashing times Operation display 7...

Page 33: ...rror Liquid pipe temperature thermistor 2 error Suction temperature thermistor error Outdoor temperature thermistor error SC heat exchanger gas inlet port temperature thermistor error Discharge pressure sensor error Suction pressure sensor error Current sensor error Reverse phase or open phase wiring error Inverter error EEPROM access error Inverter starting current error Inverter normal operation...

Page 34: ...cale Pressure gauge Outdoor unit Outdoor unit Empty cylinder Scale Pressure gauge Indoor unit Indoor unit Multiple connections Pump down method 1 DIP switch method 1 Fully close the 3 way valves at the liquid pipes Fully close the 3 way valves at the oil pipes of the slave units Leave only the 3 way valve at the oil pipe of the master unit fully open 2 Set the DIP switch 1 3 on the outdoor unit bo...

Page 35: ...be selection Table 9 3 Header selection 2 HEADER A header is used for connecting the indoor units Refer to the installation instruction sheet for the header for installation specifica tions Table 9 1 Outdoor unit branch kit for installing multiple outdoor units Outdoor unit branch kit Total model code of outdoor unit UTR CP567L UTR CP567X ALL UTR CP567Q Separation tube Total model code of indoor u...

Page 36: ...ing cooling heating operation under cooling heating condition refer to item 17 Maximum electric current temperature condition is max cooling condition refer to item 18 Maximum input temperature condition is max cooling condition refer to item 18 Means pressure of High Pressure side Low Pressure side Noise level Refrigerant type and initial charging amount Product weight Protection level against du...

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