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Fujitsu AJ*108LALH Series, Installation Manual

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Fujitsu AJ*108LALH Series Installation Manual Download Page 9

En-9

Concentrated Installation

(2) 

The wall (without height restrictions) must not exist on the both sides (left / right) of outdoor unit. Also, must not ex-

• 

ist on the both sides (front / rear) of outdoor unit.
Ventilation resistance can be ignorable when the distance from a wall or product, etc. is larger than 2m.

• 

12 

Fig. 13

Fig. 

When there are obstacles above the product

3. 3. 3. 

When there are obstacles above the product, keep the minimum installation height 
as shown in the 

fi

 gure and install the outlet duct.

When installing the outlet duct, you must set the high static pressure mode with the 
push-button switch.
(Similar when installing anti-snow hood)

Setting high static pressure mode

Follow the instructions in the table below to set the high static pressure mode.

Condition

High static pressure mode setting 

*2

Static Pressure(SP) 

*1

 : 0 

≤

 SP 

≤

 30 (Pa) 

Set to Mode 1

Static Pressure(SP) 

*1

 : 30 < SP 

≤

 80 (Pa) 

Set to Mode 2

Static pressure is the air 

fl

 ow resistance that includes the discharge duct resistance & the other 

*1. 

additional resistance like discharge grill and so on.
Refer to the section on Push Switch Setting in “Chapter 7 Field Setting”.

*2. 

Transportation the outdoor unit

3. 4. 

Hoisting method (Fig. A)

When hanging the outdoor unit and conveying it to installation location, hang the unit with rope by passing through 

• 

the 4 opening holes on bottom of front and rear side as shown in 

fi

 gure.

Use 2 ropes at least 8m long. If used shorter length, it may cause to damage the unit.

• 

Use the suf

fi

 ciently strong rope to bear the unit’s weight.

• 

Place the protective board or 

fi

 ller cloth at the place where the cabinet may come into contact with rope to prevent 

• 

from damages. Without using them, cabinet may cause to damage or deform.
During the hanging unit, make sure to keep the unit horizontally to prevent the drop.

• 

Be careful not to shock the impacts during the hanging.

• 

500mm 
or more

Outlet duct

<Top view>

1000mm 

or more

400mm 

or more

400mm 

or more

400mm 

or more

800mm 

or more

800mm 

or more

<Top view>

1000mm 

or more

400mm 

or more

400mm 

or more

400mm 

or more

500mm 

or more

1000mm 

or more

9378945029-03_IM_EN.indb   9

9378945029-03_IM_EN.indb   9

2011-9-20   16:25:47

2011-9-20   16:25:47

Summary of Contents for AJ*108LALH Series

Page 1: ...Indoor unit pipe connections 13 5 3 Piping method 14 5 4 Multiple connections 16 6 ELECTRICAL WIRING 18 6 1 The precautions of electrical wiring 18 6 2 Knockout hole 19 6 3 Selecting power supply cable and breaker 20 6 4 Transmission line 21 6 5 Wiring method 22 6 6 External input and external output 24 7 FIELD SETTING 27 7 1 Field setting switches 27 7 2 DIP switch setting 27 7 3 Rotary switch se...

Page 2: ...frigeration cycle the pressure in the refrigeration cycle will become abnormally high and cause 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 Ensure that the outdoor unit is securely installed at a place that can withstand the weigh...

Page 3: ...h salt content such as at the seaside It will deteriorate metal parts causing the parts to fall or the unit to leak water Area filled with mineral oil or containing a large amount of splashed oil or steam such as a kitchen It will deteriorate plastic parts causing the parts to fall or the unit to leak water Area that generates substances that adversely affect the equipment such as sulfuric gas chl...

Page 4: ... Contents of change for R22 tool Gauge manifold Pressure is huge and cannot be measured with a conventional gauge To prevent er roneous mixing of other refrigerants the diameter of each port has been changed It is recommended to use a gauge manifold with a high pressure display range 0 1 to 5 3 MPa and a low pressure display range 0 1 to 3 8 MPa Charging hose To increase pressure resistance the ho...

Page 5: ...ing outdoor units install the outdoor unit with the largest nominal system capacity nearest to the refrigerant pipe and indoor unit followed by those with lesser nominal system capacities Outdoor unit 1 Outdoor unit 2 Outdoor unit 3 Option parts 2 5 CAUTION The following parts are optional parts specific to R410A refrigerant Do not use parts other than those listed below Separation tube kit 2 5 1 ...

Page 6: ...pri ate measures to protect it from those elements To ensure a stable operation install inlet and outlet ducts Install the unit in an area that would not cause problems even if the drain water is discharged from the unit Oth erwise provide drainage that would not affect people or objects Install the unit in an area that has no heat sources vapors or the risk of the leakage of flammable gas in the ...

Page 7: ...imited height wall 3 3 1 Single and multiple installations 1 There are no restrictions on the height of the side wall Provide installation spaces L1 and L2 in accordance with the table below according to the wall height front side rear side conditions Provide installation spaces other than L1 and L2 in accordance with the conditions shown in the figure below Ventilation resistance can be ignorable...

Page 8: ...acing the wall side Condition Necessary installation space When B 400 mm L6 200 mm When 20 B 400 mm L6 200 400 B 3 mm 8 Single installation Fig Top view Front Rear 200mm or more 100mm or more 9 Multiple installations Fig Top view Front Rear 200mm or more B L6 B 200mm or more 200mm 200mm 800mm or more When installing with the FRONT of the outdoor unit facing the wall side 10 Fig Top view 500mm or m...

Page 9: ...resistance that includes the discharge duct resistance the other 1 additional resistance like discharge grill and so on Refer to the section on Push Switch Setting in Chapter 7 Field Setting 2 Transportation the outdoor unit 3 4 Hoisting method Fig A When hanging the outdoor unit and conveying it to installation location hang the unit with rope by passing through the 4 opening holes on bottom of f...

Page 10: ...t on top of a firm platform such as concrete block Fig B The foundation base should be able to support the product and the foot width of the product should be more than 46 5mm 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 space of the connection piping wh...

Page 11: ...ranch kit a 3m b 3m Total pipe length a b e f h j l n p q s u 1000m Total refrigerant amount 63kg Outdoor unit capacity Master slave In the case of 3 outdoor units connected C From outdoor unit to the farthest indoor unit a e f 150m a e p 150m actual pipe length From the first separation tube to the farthest indoor unit f 60m p 60m actual pipe length Difference in height between outdoor units and ...

Page 12: ...on Table D is larger than the pipe diameter between outdoor unit branch kit and the first separation tube based on Table C select the pipe whose diameter is equal to the one between the outdoor unit branch kit and the first separation tube If pipe diameter D C select pipe size from table C Use a standard separation tube for pipe branching Do not use a T tube as it does not separate the refrigerant...

Page 13: ...plying nitrogen gas it will create an oxidation film This can degrade performance or damage the parts in the unit such as the compressor or valves Do not use flux to braze pipes If the flux is the chlorine type it will cause the pipes to corrode In addition if the flux contains fluoride it will affect the refrigerant piping system due to deterioration of refrigerant oil For brazing material use ph...

Page 14: ...ddition to prevent rusting painting the edge with rust preventive paint is recommended The piping can be connected from 2 directions the front or the bottom Knockout holes are provided so that the piping can be connected from 2 different directions Use the front knockout hole as required A Knockout position Fig B Detail of knockout po Fig sition bottom Knockout hole Unit mm C Detail of knockout po...

Page 15: ...gaps Small insects or animals that are trapped in the outdoor unit may cause a short circuit in the electrical component box To prevent pipe damage do not make sharp bends in the pipe Bend the pipe at a radius of 70mm or greater Do not bent pipe many times at same part to prevent break Do not use flare connection on the indoor unit pipe until the connection piping has been connected Wait until the...

Page 16: ...To outdoor unit To outdoor unit Restriction when install Be sure following restriction Installation angle 1 Outdoor unit branch kit A B C A C B 0 to 10 0 to 10 Horizontal Vertical To indoor unit To outdoor unit To outdoor unit or next branch kit N o g o o d N o g o o d N o g o o d N o g o o d OK No good No good No good OK Install the outdoor unit branch kit horizontally within 0 to 10 so that the ...

Page 17: ...o indoor unit To indoor unit Non installable patterns b NO GOOD Master unit Slave unit 1 Slave unit 2 To indoor unit NO GOOD Master unit Slave unit 1 Slave unit 2 To indoor unit NO GOOD Master unit Slave unit 1 Slave unit 2 To indoor unit When the length between branch kits and the length of the branch kit and outdoor units is more than 2m 2 provide a rise of 200mm or more on the gas pipe However ...

Page 18: ...in positive phase sequence If they are connected in negative phase sequence an error will be displayed If there is a missing phase connection the unit will not operate normally Do not connect a N phase neutral phase cable to other phases misconnection Wrong wiring will lead to parts damage Do not use crossover power supply wiring for the outdoor unit If the electrical power is inadequate contact y...

Page 19: ...es to prevent snapping of wires It is recommended to apply rust proof paint on the edges to prevent rust Electric wires can be connected from the front or from the left Knockout holes are prepared so that wiring can be made from 2 different directions Use the knockout holes on the front and the left separately when necessary Unit mm Knockout hole Knockout hole Unit mm ...

Page 20: ...e conformed cord with Type 60245 IEC66 2 Max wire length Set a length so that the voltage drop is less than 2 3 Increase the wire diameter when the wire length is long In case of connected outdoor unit breaker earth leakage breaker Fig Selecting main breaker and main pow 2 er supply cable when connecting multiple outdoor units Main breaker Main breaker Total Sub breaker Refer to the table in item ...

Page 21: ...compatible cable Wiring rules 6 4 2 1 Total length of transmission cable Total transmission line length MAX 3600m EF EG GH HJ HK KL 3600m Fig 2 In the following cases Signal Amplifier is required When the total length of the transmission line exceeded 500m AB BC BD 500m Fig 1 When the total number of units is over 64 Transmission line length between each unit 400m 2 Length of transmission cable be...

Page 22: ...ow the terminal plate to connect the electric wires to the terminal After connecting the electric wires secure them with a cable clamp Connect the wires without applying excessive tension 0 0 0 0 0 0 To other refrigerant circuit Outdoor unit Power supply Power supply Power supply Outdoor unit1 Master unit Outdoor unit2 Slave unit 1 Outdoor unit3 Slave unit 2 Breaker Indoor unit Indoor unit Indoor ...

Page 23: ...he equipment or to the earth screw near the terminal Be very careful that the screws are not overly tightened as the wires may snap and the terminal may be damaged Be sure to use one side of a twisted pair cable when using transmission cable with 2 sets of twisted pair cables Power supply cord Transmission cable Cable clip Cable clip Binder Binder Power terminal board Ring terminal M8 8 10 mm 70 8...

Page 24: ...3 EXT IN 2 EXT OUT 2 EXT OUT 1 BASE HEATER EXT IN 1 PULSE IN CN137 BLUE CN136 BLACK CN115 BLACK CN132 GREEN CN131 YELLOW CN135 ORANGE CN133 CN134 RED EXT IN 4 EXT IN 3 EXT IN 2 EXT OUT 2 EXT OUT 1 BASE HEATER EXT IN 1 PULSE IN CAUTION Do not bind this wire with other wires Example In case of Outdoor unit Insert the connector to CN136 Black and 1 CN137 Blue of control PC board Fix it to the wire wi...

Page 25: ...te OFF Normal operation O ON Outdoor unit operation peak control CN134 Red OFF Normal operation O ON Batch stop or Emergency stop operation 2 3 CN135 Orange 4 No pulse No information from electricity meter O O Pulse Power usage information from electricity meter Slave unit can connect only input5 CN135 The operations of each input terminal and the selection of function are set with the push switch...

Page 26: ...it 5 Provide a DC12 to 24V power supply Select a power supply capacity with an ample surplus for the connected load 6 The allowable current is 30mA or less Provide a load resistance such that the current becomes 30mA or less 7 Polarity is for pin 1 and for pin 2 Connect correctly Do not impress a voltage exceeding 24V across pins 1 2 A twisted pair cable 0 33mm 2 AWG22 should be used Maximum lengt...

Page 27: ...rbidden SET5 1 2 Number of outdoor units in stalled 3 Forbidden 4 Terminal resistor setting X 10 X 1 5 6 7 Segment LED display Push button LED lamp POWER LED105 LED104 REF AD SET 1 SW101 SET 2 SW102 SET 3 SW103 SET 4 SW104 ERROR MODE LED101 GREEN MODE EXIT SELECT ENTER SW106 SW107 SW108 SW109 SW105 LED102 RED Rotary switch Outdoor unit printed circuit board DIP switch Settings to be configured loc...

Page 28: ...ttin g multiple terminal resistors take note of the following items How many network segments are there in a VRF system Where will you set the terminal resistors in a network segment Condition for 1 segment Total number of outdoor and indoor units and signal amplifiers is less than 64 or the total length of the transmission cable is less than 500m How many outdoor units are connected to 1 refriger...

Page 29: ... means the length between master outdoor unit and the nearest indoor unit Short pipe less than 40m 0 1 Long pipe 1 65 to 90m 0 2 Long pipe 2 90 to 120m 0 3 Long pipe 3 120 to 150m 0 4 10 Compressor sequential start shift No shift 1 0 0 0 O This item allows you to delay the start timing of the outdoor units for every refrigerant system when multiple refrigerant systems have been configured You can ...

Page 30: ...ting disabled 2 7 0 0 O Factory default 28 Setting disabled 2 8 0 0 O Factory default 29 Setting disabled 2 9 0 0 O Factory default 30 Energy saving level Level 1 stop operation 3 0 0 0 O This item allows you to limit the nominal system capacity or stop the opera tion when an energy saving peak cut signal is received at the external input terminal CN133 Set only the master unit for this item Level...

Page 31: ...up ERROR lamp is off POWER MODE lamp ON ERROR lamp OFF SELECT button ENTER button MODE EXIT button POWER LED105 LED104 ERROR MODE LED101 GREEN MODE EXIT SELECT ENTER SW107 SW108 SW109 LED102 RED 7 segment LED display OFF When system is abnormal Check the settings as there is an error in the settings for outdoor unit address DIP switch SET3 1 2 or number of connected slave units DIP switch SET3 3 4...

Page 32: ...CT button to select the next item for the first 2 digits Setting is complete when the lamp lights up Setting is complete when the lamp lights up Press the MODE EXIT button Press the SELECT button Press the SELECT button Press the SELECT button Press the ENTER button Press the ENTER button Press the ENTER button 7 segment LED display LED105 LED104 ８ ８ ８ ８ Press the SELECT button to change the value...

Page 33: ... cording to the procedures below 1 FUNCTION Setting First 2 digits Last 2 digits Blinking Blinking the display when the main power is turned on When F4 to F9 are displayed continue to press the SELECT but ton until F3 is displayed Press the MODE EXIT button Press the SELECT button Blinking Press the SELECT button Press the ENTER button Automatic address setting for signal amplifiers Blinking Press...

Page 34: ...ory default is 00 Turn on the power of the indoor and outdoor units When the system is normal nothing will be displayed on the 7 segment LED display When ERROR is displayed inspect the units Use the MODE EXIT SELECT and ENTER buttons on the outdoor unit print circuit board to configure settings ac cording to the procedures below It may take about 10 minutes for completing the processing End 1 1 1 ...

Page 35: ...away from the device where terminal resistor is measured A value from the table is displayed depending on the distance from the signal amplifier and the device where the terminal resistor is set This value is an estimate Transmission cable connecting outdoor 2 units in a refrigerant system The resistance between the terminals of the transmission cable is 45 60Ω This value is an estimate Distance f...

Page 36: ...uring sealing test It can rupture the pipes and cause serious injury Do not turn on the power unless all operations are complete Do not block the walls and the ceiling until the sealing test and the charging of the refrigerant gas have been completed After connecting the pipes perform an sealing test Recheck that the spindle of the 3 way valve are closed before performing a sealing test Fig B Pour...

Page 37: ...tem with a refrigerant other than R410A Always keep to the limit on the total amount of refrigerant Exceeding the limit on the total amount of refrigerant will lead to malfunction during charging of refrigerant 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 re...

Page 38: ...amount for outdoor unit kg Calculation of additional amount for pipe length 2 B Total length of ø19 05 mm liquid pipe b 0 268 kg m m kg Total length of ø15 88 mm liquid pipe b 0 178 kg m m kg Total length of ø12 70 mm liquid pipe b 0 114 kg m m kg Total length of ø9 53 mm liquid pipe b 0 058 kg m m kg Total length of ø6 35 mm liquid pipe b 0 021 kg m m kg Calculation of additional charge refrigera...

Page 39: ...atisfied Installing insulation 8 4 Install insulation material after conducting the 8 1 Sealing Test To prevent condensation and water droplets install insulation material on the refrigerant pipe Refer to the table to determine the thickness of the insulation material If the outdoor unit is installed at a level that is higher than the in door unit the water that has condensed in the 3 way valve of...

Page 40: ... refer to 9 2 Test operation method to test operation the unit If there are problems adjust immediately and recheck Test operation method 9 2 Be sure to configure test run settings only when the outdoor unit has stopped operating Perform test operation for each refrigerant system You can set cooling test operation or heating test operation with the push button switch on the outdoor unit print circ...

Page 41: ...ntil 01 is displayed Blinking Blinking Blinking Blinking Blinking Blinking Blinking Blinking Blinking EXIT Press the ENTER button for more than 3 seconds Press the ENTER button for more than 3 seconds Press the ENTER button for more than 3 seconds Press the ENTER button for more than 3 seconds ﻲ ﻴ ﻲ ﻴ ﻲ ﻴ ﻲ ﻴ ﻮ ﻮ ﻮ ﻮ ﻶ ﻶ ﻮ ﻮ ﻶ ﻶ First 2 digits Last 2 digits the display when the main power is turne...

Page 42: ... Difference between inlet and outlet tempera tures is normal Measure the inlet and outlet tem peratures Temperature difference 10 degrees 6 Error is not displayed Check the 7 segment LED display Error blinking or no error code display LED Display 10 You can determine the operating status by the lighting up and blinking of the 7 segment LED display Check the status using the table below Normal oper...

Page 43: ...6 3 1 Inverter error E A 3 1 Compressor1 temperature abnormal E 6 7 2 Inverter PCB short interruptions detection E A 3 2 Compressor2 temperature abnormal E 6 8 1 Magnetic relay error E A 4 1 High pressure abnormal E 6 8 2 Rush current limiting resistor temp rise protection E A 4 2 High pressure protection1 E 6 9 1 Outdoor unit transmission PCB Parallel communication error E A 4 3 High pressure pro...

Page 44: ...tion is max cooling condition refer to item 16 Air circulation 9 Air circulation Noise level 10 Noise level Refrigerant 11 Refrigerant type and initial charging amount Max pressure HP LP 12 Means pressure of High Pressure side Low Pressure side Protection 13 Protection level against dust and water Working temperature 14 Working temperature Condition of cooling heating 15 Dry bulb temperature and w...

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