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TECHNICAL MANUAL High Head Models Heat pump type

1. far FDCH400KXE6 FDCH450KXE6 FDCH504KXE6 Indoor air temperature Upper lower limits Upp Refer to page 17 Outdoor air temperature Upper lower limits Indoor units Number of connected units 1 to 27 unit 1 to 30 unit 1 to 32 unit that can be used in combination Connectable capacity 200 600 225 675 252 706 Total piping length 2 1000m or less Main pipe length 130m or less Single direction piping length Actual length 160m or less Eguivalent length 185m or less Allowable pipe length from the first branching 90m or less However difference between the longest and shortest piping 40m or less Elevation difference between the first branching point and the indoor unit 15m or less Difference in Outdoor unit is higher 50 90m 9 height between indoor and outdoor m va units Outdoor unit is lower Prohibited activity Difference in the elevation of indoor units in a system 15m or less Indoor unit atmosphere behind ceiling temperature and humidity Dew point temperature 28 C or less relative humidity 80 or less or models FDT FDTC FDTW FDTS FDTQ FDE FDK FDFL FDFU Dew point temperature 23 or less relative humidity 80 or less FDU FDUM FDUH Compressor 1 cycle time 6 min or more 3 minutes or more from start to stop or 3 minutes or more from stop to start stop start frequency Stop time 3 min or more Voltage fluctuation Within 10 of rated voltage us Voltage drop dur
2. 2 2 units in one row with a high barrier behind the units It must be open above the units No limitation in height Barrier 100mm or more ue OK 10mm or more Open Wall height H3 mm r gp m e Dimensions El A L1 500 500 Open E E L2 10 50 10 D o e 3 L3 100 50 100 E X L2 O C 14 L4 10 50 Open gt pp Hi 1500 1500 Open Front side of the unit H2 No limit No limit No limit H3 1000 1000 No limit Wall height H1 H4 No limit No limit Open Air flow deflector locally prepared EF N 48 H3 NE SE amp E e 8 500mm or O When more than one unit are installed Example n installation Y I Wall height H3 Dimensions 1 e L1 500 Open mx 12 10 200 5 L3 100 300 3 L5 10 0 400 gt gt L6 100 400 1 Front side of the unit Hi 1500 Open r H2 No limit No limit Wall height H1 H3 1000 No limit H4 No limit Open 3 3 units in one row with a high barrier behind the units It must be open above the units No limitation in height EL Barrier E o SE C3 se mo x SI MS eo sa X X 10mm or more 10mm or more Open 38 10 KX T 146 4 REFRIGERANT PIPING 4 1 Restrictions on the use of pipes 1 Limitation on use of pipes In installing pipes always observe the restrictions on the use of pipes specified in this Section 1 including Maximum length Total pipe length Allowable pipe length from the fi
3. Indoor units that can be Number of connected units 2 to 46 units 2 to 50 units 2 to 54 units 2 to 57 units 2 to 61 units used in ity combination Connectable capacity 368 1029 400 1120 425 1190 450 1260 477 1344 Total piping length 2 1000m or less Single direction piping length Actual length 160m or less Equival length 185m or less Main pipe length 130m or less Allowable pipe length from the first branching 90m or less However difference between the longest and shortest piping 40m or less Elevation difference between the first branching point and the indoor unit 15m or less Difference in height between Outdoor unit is higher 50 90m indoor and outdoor units Outdoor unit is lower Prohibited activity Difference in the elevation of indoor units in a system 15m or less Difference in height between outdoor units Same system MAX 0 4m Difference between an outdoor unit and on outdoor unit side branch pipe MAX 5m Length of oil equalization piping MAX 10m Indoor unit atmosphere behind ceiling temperature and humidity Only models FDT FDTC FDTW FDTS FDTQ FDU FDUM FDUH Dew point temperature 28 C or less relative humidity 80 or less FDE FDK FDFL FDFU Dew point temperature 23 C or less relative humidity 80 or less Compressor 1 cycle time 6 min or more 3 minutes or more from st
4. 45 6 1 Wiring system diagrams Example of combination Outdoor unit power supply 3 phase 4wiring 380 415V Distributed separate power supply system Earth leakage breaker 10 KX T 146 Impulse withstanding type Grounding Circuit breaker wire El ol for cabling Circuit breaker Outdoor unit A Power cable Main power cable 4 cores B Signal wire Super Link wire 2 cores C Power cable indoor unit power cable 2 cores D Remote control cord 2 cores FDO A AKXE6 indoor unit 3 cores FDOAA AKXE4 5 indoor unit for cabling Indoor unit Earth leakage breaker Remote control unit Indoor unit power supply Single phase 220 240V CAUTION If the earth leakage breaker is exclusively for ground fault protection then you will need to install a circuit breaker for wiring work 6 2 Method of connecting power cables 1 Method of leading out cables e As shown on the drawing in Section 4 2 1 cables can be laid through the front right left or bottom casing e In wiring on the installation site cut off a half blank
5. ed e1nssoud ones Me GE 30 40 OA intake volume m min A suitable booster fan is required to intake OA Out of usage range 30 Pa Ao A OA intake volume m min lt 10 KX T 146 lt Calculation example Indoor unit FDTW90 Fan speed of FDTW90 Hi Case 1 Conditions OA intake volume 1 0m3 min Static pressure at inlet port of FDTW OA duct Om 10Pa from following diagram OA duct length 2m OA duct size 100 Pressure loss 5Pa m Calculation method of static pressure for booster fan Static pressure at the inlet port of FDTW with OA duct Ps Static pressure at inlet port of FDTW Pressure loss of the OA duct 10 5x2 OPa Booster fan is no necessary Case 2 Static pressure Pa Conditions If Ps lt 0 Booster fan isrequired FDTW90 OA duct Static pressure Pa OA intake volume 3 0m min Static pressure at inlet port of FDTW OA duct Om 22Pa from following diagram OA duct length 2m 1m 3m OA duct size 100 Pressure loss 5Pa m Calculation method of static pressure for booster fan Static pressure at the inlet port of FDTW with OA duct Ps Static pressure at inlet port of FDTW Pressure loss of the OA duct 22 5x3 37Pa Ps lt 0 Select the booster fan with 37Pa or more static pressure 40 Oo a 2 20 5 o 0 o a o 20 S N FDTW90
6. 15 88 19 05 224 19 05 22 22 280 22 22 9 25 4 14 10 KX T 146 System FDCH1010 FDCH1065 FDCH1130 FDCH1180 FDCH1235 FDCH1300 FDCH1360 Item KXE6 KXE6 KXE6 KXE6 KXE6 KXE6 KXE6 Indoor air temperature Upper lower limits Refer to page 17 Outdoor air temperature Upper lower limits Indoor units Number of connected units 2 to 59 2 to 62 2 to 66 3 to 69 3 to 72 3 to 76 3 to 80 that can be units units units units units units units used in combination Connectable capacity 504 1311 532 1384 560 1456 588 1528 615 1599 650 16901680 1768 Total piping length Single direction piping length 1000m or less Actual length 160m or less Equival length 185m or less Main pipe length 130m or less Allowable pipe length from the first branching 90m or less P However difference between the longest and shortest piping 40m or less Elevation difference between the first branching point and the indoor unit 15m or less Difference in height between Outdoor unit is higher 50 90m indoor and outdoor e Outdoor unit is lower Prohibited activity units Difference in the elevation of indoor units in a system 15m or less Difference in height between outdoor units Same system MAX 0 4m Difference between an outdoor unit and on outdoor unit side branch pipe MAX 5m Length of oil equalization p
7. indepemdent ventilation system 1 2 3 4 5 6 7 Be sure to calculate cooling heating load considering the ventilation heat load and to decide the air conditioning system Be sure the OA intake volume to FDT unit should not exceed 20 of the Supply Air SA volume of FDT unit and it should be less than 2m min Be sure to decide the OA intake volume considering the mixed air temperature will be within the usage temperature range of FDT unit Especially in following case please consider to intake OA after processing OA or reducing the OA intake volume Be sure to equip a suitable filter for OA intaken in order to protect the dust Because OA does not pass through the filter equipped on FDT unit Be sure to insulate OA duct If not it may have dew condensation Be sure to interlock the booster fan for OA with the fan of FDT unit by using CNT connector If not the dust trapped on the filter of FDT unit may be blown out to the room by the OA being intaken during the fan of FDT unit stopping Be sure to select a suitable booster fan for OA considering the pressure loss in the OA duct and the pressure loss at the in ler port of FDT with following diagram Please take into consideration the noise level as well Influence for noise level dB 0 0 5 1 0 1 5 2 0 OA intake volume m min 200 150 100 port of FDT Pa 50 Pressure loss at the inlet 0 0 5 1 0 1 5 2 0 OA intake volume m
8. 4 50 or oblong hole measuring 40x80 covering a penetration of the casing with nippers 2 Notabilia in connecting power cables Power cables must always be connected to the power cable terminal block and clamped outside the electrical component box In connecting to the power cable terminal block use round solderless terminals Round crimp contact terminal Tightening torque N m M4 Outdoor signal line terminal block 0 9 1 2 M5 Power cable terminal block Earth wire 2 00 2 35 M6 Power cable terminal block 2 5 2 8 Wire RS e Connect the ground wire before you connect the power cable When you connect a grounding wire to a terminal block use a grounding wire longer than the power cable so that it may not be subject to tension e Do not turn on power until installation work is completed Turn off power to the unit before you service the unit O e Ensure that the unit is properly grounded e Always connect power cables to the power terminal block e To connect a cable to the power terminal block use a round crimp contact terminal e Use specified wires in wiring and fasten them securely in such a manner that the terminal blocks are no
9. Accordingly you are required to arrange dedicated R410A tools listed in the table on the right before installing or servicing this unit e Do not use a charge cylinder The use of a charge cylinder will cause the refrigerant composition to change which results in performance degradation e In charging refrigerant always take it out from a cylinder in the liquid phase e All indoor units must be models designed exclusively for R410A Please check connectable indoor unit models in a catalog etc A wrong indoor unit if connected into the system will impair proper system operation 10 KX T 146 Dedicated R410A tools a Gauge manifold b Charge hose c Electronic scale for refrigerant charging d Torque wrench e Flare tool f Protrusion control copper pipe gauge 9 Vacuum pump adapter h Gas leak detector 1 BEFORE BEGINNING INSTALLATION Check that the models power supply specifications piping wiring are correct CAUTION e Please read this manual without fail before you set to installation work and carry it out according to this manual e For the installation of an indoor unit please refer to the installation manual of an indoor unit e For piping work optional distribution parts branching pipe set header set are necessary Please refer to our catalog etc e Never fail to install an earth leakage breaker Please use one tolerable to harmonic components e Operatin
10. Be sure to equip a suitable filter for OA intaken in order to protect the dust Because OA does not pass through the filter equipped on FDTW unit Be sure to insulate OA duet If not it may have dew condensation Be sure to interlock the booster fan for OA with the fan of FDTW unit by using CNT connector If not the dust trapped on the filter of FDTW unit may be blown out to the room by the OA being intaken during the fan of FDTW unit stopping Be sure to select a suitable booster fan for OA considering pressure loss in the OA duct and the pressure loss at the inlet port of FDTW with following diagram FDTW28 56 MP SEERE 4 A suitable booster fan is required to intake OA Static pressure Pa Out of usage range lt 30 Pa 1 1 1 1 1 1 x 1 1 1 1 1 L 1 1 1 1 1 P i 1 1 1 1 A suitable booster fan is required to intake OA Static pressure Pa Out of usage range 30 Pa OA intake volume m min RO 10 KX T 146 FDTW90 A suitable booster fan is required to intake OA Out of usage 30 Pa range lt eg ounssaud ones pe M sega ea A A E OA intake volume m min FDTW112 30 A suitable booster fan is required to intake OA 30 Pa Out of usage range lt 10 0 10 20
11. Booster fan OA duct Booster fan Operated stopped Fan speed of FDTW the inlet port of FDTW 10Pa ken Static pressure at the inlet port of FDTW 22Pa 1 2 3 4 5 OA intake volume m min BL
12. Front side 2 Assembling sequence gt D Plate 7 CD Plate1 1 and Plate1 2 gt 2 Plate2 gt 3 Plate 3 gt Y Plate 4 gt Plate 5 gt Plate 6 x2 10 KX T 146 3 Part drawing pee o N t 0 8mm Plate 1 1 Side Plate Right Reinforcement L002 695 1 3 7 mark B LO o o 19 mark A 14 burring 4 2 Q B B t 0 8mm Plate 1 2 Side Plate Left The drawing for Plate 1 2 is the symmetrical drawing for the Plate 1 1 10 KX T 146 2 Plate 2 Rear Plate t 0 8mm 25 Reinforcement a 25 8 7 mark B 8 Plate 3 Plate B t 0 8mm 355 8 er 10 KX T 146 4 Plate 4 Plate A t 0 8mm 14 07 mark B 4 burring 4 2 3 mark A 23 de les Plate 5 Top Plate t 0 8mm 4 burring 4 2 3 mark A Reinforcement 10 KX T 146 Plate 6 Stiffener t 0 8mm Long hole 7x10 2 burring 4 2 3 mark A Plate 7 Front Plate t 0 8mm 12 67 mark B 21 8 B 20 10 KX T 146 Outdoor Air OA intake for FDT and FDTW 1 FDT If it is required to intake OA through FDT unit make sure to check following points carefully in order to conform to the requirement of customer If the OA intake volume through FDT unit is not satisfied with the required ventilation air volume consider to install an
13. lower limits Refer to page 17 Indoor units Number of connected units that can be 1 to 35 unit 2 to 39 unit 2 to 43 unit used in combination Connectable capacity 280 784 308 861 340 952 Total piping length 2 1000m or less Main pipe length 130m or less Single direction piping length Allowable pipe length from the first branching Actual length 160m or less Eguivalent length 185m or less 90m or less However difference between the longest and shortest piping 40m or less Elevation difference between the first branching point and the indoor unit 15m or less Difference in height between indoor and outdoor units Outdoor unit is higher Outdoor unit is lower 50 90m 2 Prohibited activity Difference in the elevation of indoor units in a system Indoor unit atmosphere behind ceiling temperature and humidity Only models FDT FDTC FDTW FDTS FDTQ EG FDUM FDUH 15m or less Dew point temperature 28 C or less relative humidity 80 or less FDE FDK FDFL FDFU Dew point temperature 23 or less relative humidity 80 or less Compressor 1 cycle time 6 min or more 3 minutes or more from start to stop or 3 minutes or more from stop to start stop start frequency Stop time 3 min or more Voltage fluctuation Within 10 of rated voltage Power source voltage Voltage drop during start Within 15 of rated voltag
14. turn the gas pipe side until it comes to the Closed position as indicated in the drawing on the right OFor the liquid side pipe and oil equalizing pipe side turn with a hexagonal wrench until the shaft stops If excessive force is applied the valve main body can be damaged Always use a dedicated special tool For gas pipes For fastening torque of a flare nut please refer to Section 4 2 2 Piping work on site 4 4 Additional refrigerant charge Charge additional refrigerant in the liquid state Be sure to measure the quantity with a scale in adding refrigerant OTighten the cap securely For cap nut For tightening torque refer to the table below Tightening torque N m Shaft Ca Cap nut valve main body lid check joint section For oil equalizing tube For gas pipes 7 or less 30 or less 13 For liquid pipes 14 16 25 35 10 12 ETE For liquid pipes For oi equalizing 6 8 20 30 10 12 Ft If you cannot charge all refrigerant with the outdoor unit lying idle charge it with the unit running in the test run mode For the test run method please refer to Section 8 If operated for a long time with insufficient refrigerant the compressor will be damaged In particular when adding refrigerant during operation complete the job within 30min This unit contains lt 400 680 11 5 kg 735 1360 23 0 kg gt of refrigerant Determine the amount of refrigerant to be charged additionally
15. Anchor bolt positions Use four anchor bolts M10 to fix an ou Ideally an anchor bolt should protrude 20mm r 1350 i 1 850 S xx E Q i st o x A 1 I 1 Oo A N l 1 1 i VIN N i iy amp Y Anchor bolt positions 2 Base mark 2 OOIOO Barrier H 1000mm or less door unit s anchoring legs at all times N When a unit is hoisted with slings for haulage please take into consideration the offset of its gravity center position If not properly balanced the unit can be thrown off balance and fall 20 Ni Normally it is desirable that a base as specified in the drawing above is provided A base used for a former model is wrongly oriented and not acceptable Please use it for renewal installation Please add a base on the center It is necessary to prevent sagging e Please install a unit after ascertaining that the bases have been made to sufficient strength and level to ensure the unit against vibration or noise generation e Please construct a base to the size of a shadowed area the entire bottom area of an outdoor unit s anchoring leg shown on the above drawing or larger e Please orient a base in the traversal direction direction of W1350mm of an outdoor unit as illustrated in the drawing above 3 Vibration isolating rubber e A vibration isolating rubber must supp
16. Invalid Valid 1 Demand input Invalid Valid 2 Cooling heating forced input Valid Invalid 3 Silent mode 1 1 Valid Invalid 4 2 stage demand input Invalid Valid 5 Outdoor fan snow guard control input Valid Invalid 6 Test run external input 1 equivalent to SW5 1 Test run start Normal 7 Test run external input 2 equivalent to SW5 2 Cooling Heating 8 Silent mode 2 2 Valid Invalid 9 Spare 1 Valid invalid is changed depending on outdoor temperature 3 amp 2 It is always Valid regardless of outdoor temperature 7 3 External input and output terminals specifications 10 KX T 146 Name Purpose Factory default Specification Operating side connector External input CnS1 External operation input Short circuited at shipping Non voltage contactor DC12V NICHIATSU BO2B XAMK 1 LF SN External input CnS2 Demand input Short circuited at shipping Non voltage contactor DC12V NICHIATSU BO2B XARK 1 LF SN External input CnG1 Forced refrigerant input Open at shipping Non voltage contactor DC12V NICHIATSU B02B XAER 1 LF SN External input CnG2 Silencing mode input Open at shipping Non voltage contactor DC12V NICHIATSU B02B XASK 1 LF SN External output CnH Operation output DC12V output MOLEX 5286 02A BU External output CnY Error output DC12V output MOLEX 5266 02A 7 4 Address setting for u
17. any buttons with wet hands It can cause electric shocks Do not shut off the power supply immediately after stopping the operation Wait at least 5 minutes otherwise there is a risk of water leakage or breakdown Do not control the system with main power switch It can cause fire or water leakage In addition the fan can start unexpectedly which can cause personal injury eDo not touch any refrigerant pipes with your hands when the system is in operation During operation the refrigerant pipes become extremely hot or extremely cold depending the operating condition and it can cause burn injury or frost injury eDo not operate the outdoor unit with any article placed on it You may incur property damage or personal injure from a fall of the article eDo not step onto the outdoor unit You may incur injury from a drop or fall Notabilia as a unit designed for R410A e Do not use any refrigerant other than R410A R410A will rise to pressure about 1 6 times higher than that of a conventional refrigerant A cylinder containing R410A has a pink indication mark on the top e A unit designed for R410A has adopted a different size indoor unit operation valve charge port and a different size chech joint provided in the unit to prevent the charging of a wrong refrigerant by mistake The processed dimension of the flared part of a refrigerant pipe and a flare nut s parallel side measurement have also been altered to raise strength against pressure
18. connectable indoor capacity will decrease much more as shown in Page 39 c Capacity from 50 to 130 is possible Number of connectable Connectable capacity FDCH1010KXE6 2 to 59 units 504 1311 FDCH1065KXE6 2 to 62 units 532 1384 FDCH1130KXE6 2 to 66 units 560 1456 FDCH1180KXE6 3 to 69 units 588 1528 FDCH1235KXE6 3 to 72 units 615 1599 FDCH1300KXE6 3 to 76 units 650 1690 FDCH1360KXE6 3 to 80 units 680 1768 Note 2 In case that the indoor unit types to be connected are FDR FDFL FDFU or FDFVV series the maximum connectable indoor capacity will be 130 or less 3 According to the total piping length the maximum connectable indoor capacity will decrease much more as shown in Page 39 10 KX T 146 1 5 Outdoor units combination table The limitations of connectable indoor capacity and connectable number of indoor unit can follow the tables mentioned below a Models FDCH735 800 850 900K XE6 Combination outdoor unit models Indoor unit FDCH335 FDCH400 FDCH450 FDCH504 Connectable 1 Number of KXE6 K KXE6 KXE6 KXE6 capacity connectable units FDCH735KXE6 368 1029 2 to 46 unit FDCH800KXE6 400 1120 2 to 50 unit FDCH850KXE6 425 1190 2 to 54 unit FDCH900KXE6 450 1260 2 to 57 unit FDCH960KXE6 477 1344 2 to 61 unit Note 1 When connecting the indoor unit type FDK FDFL FDFU or FDFW Series limit the connectable capacity not higher th
19. high Locations with ammonic atmospheres Locations where heat radiation from other heat source can affect the unit Locations without good air circulation Locations with any obstacles which can prevent inlet and outlet air of the unit Locations where short circuit of air can occur in case of multiple units installation Locations where strong air blows against the air outlet of outdoor unit It can cause remarkable decrease in performance corrosion and damage of components malfunction and fire Do not install the outdoor unit in the locations listed below Locations where discharged hot air or operating sound of the outdoor unit can bother neighborhood Locations where outlet air of the outdoor unit blows directly to an animal or plants The outlet air can affect adversely to the plant etc Locations where vibration can be amplified and transmitted due to insufficient strength of structure Locations where vibration and operation sound generated by the outdoor unit can affect seriously on the wall or at the place near bed room Locations where an equipment affected by high harmonics is placed TV set or radio receiver is placed within 5m Locations where drainage cannot run off safely It can affect surrounding environment and cause a claim Do not use the unit for special purposes such as storing foods cooling precision instruments and preservation of animals plants or art It can cause the damage of the items eDo not touch
20. of 10 Pa or more at the outside of unit Replace the plate at the blow outlet of unit and connect the blowout duct according to the following procedure The blow outlet assembled on the unit at the shipping from factory is for a direct blow and duct less installation of the unit static pressure of 10 Pa or less at the outside of unit When the application requires the static pressure of 10 Pa or more at the outside of unit it is necessary to use this kit of which the dimensions of flange are enlarged at the blowout side ACAUTION 1 Install the kit while the unit is placed on the floor It should not be attempted to install it after installation of the unit in place Otherwise it will become very difficult to install it because related sections could be deformed by the weight of unit 2 Do not supply the electric power to the unit during the installation of the kit There is the risk of electrical shock or injury be being caught up with revolving parts if it is attempted to install while the unit is operating or power is supplied to the unit 1 Applicable model of unit and type of blowout duct flange plate kit Type of blowout duct flange plate kit UT DAS1E UT DAS2E Model FDUT22 28 36 FDUT45 46 2 Installation procedure Figure shows the state that the unit is placed on a floor Top and bottom are inverted after installing the unit 1 Place the unit as shown below Top and bottom are inverted from
21. on multiple refrigerant systems is attempted Arrange all units to operate in the new SL A03 Starting address P32 Number of connected indoor units P33 gt 128 A04 Error indication Code Contents of a display Cause E2 Duplicating indoor unit address Incorrect manual address setting ES menet pairing of indoor outdoor unis ri i NE E11 Address setting for plural remote controllers Indoor unit address is set from plural remote controllers E12 Incorrect adderess setting of indoor units Automatic address setting and manual address setting are mixed E31 Duplicating outdoor unit address Plural outdoor units are exist as same address in same network E46 Incorrect setting Automatic address setting and manual address setting are mixed 7 2 Control mode switching Controls of outdoor unit may be selected as follows using the dip switches on the PCB and COO POO on the 7 segment To change COO POO on the 7 segment hold down SW8 increasing a number shown on the 7 segment display panel one s place SW9 increasing a number shown on the 7 segment display panel tens place and SW7 Data write Enter Unit set 1 Control selecting method Content of control SW setting on PCB COO POO on 7 segment Master SW3 2 to ON Automatic back up operation Master SW3 7 to ON 2 arie ka 2 bees We 2m w
22. or higher are different from those for other models Pipe length from the first branching Capacity 40m or less 40m 90m Gas pipe Liquid pipe Gas pipe Liquid pipe 22 28 9 52X 10 8 9 52X 10 8 35 X 10 35 X 10 36 45 56 tra 509995198 E pa NE 15 88X t 1 0 0000 15 88X t 1 0 A Indoor unit 112 140 160 952x 408 1905xXt1 0 224 e 19 05 X t 1 0 i 22 22X t 1 0 9 52X 10 8 25 4x t 1 0 280 22 22 X t1 0 22 22 X t 1 0 Please use C1220T 1 2H for 19 05 or larger pipes 4 Selection of an outdoor unit side branching pipe set This branching pipe set will always become necessary when units are used in combination When a unit is used as a standalone installation it is not required Please note a In connecting an outdoor unit please use a pipe conforming to the pipe size specifie 10 KX T 146 Outdoor unit Branching pipe set For two units for 735 1360 DOS 2A 1 d for outdoor unit connection b Choose a different diameter pipe joint matching a main pipe size specified in the following section in installing pipes main pipes on the outdoor unit side c Always install branching joints for both gas and liquid in such a manner that they form either correct horizontal or vertical branch a Method of selecting a branching pipe set Less than 180 DIS 22 1 e As an appropriate
23. the outdoor unit is located in a position above the indoor units Note 1 In case of less than 50m the standard models are applied 3 Connectable indoor capacity The limitations of connectable indoor capacity and connectable number of indoor unit can follow the tables mentioned below 4 Connectable indoor capacity a Capacity from 50 to 150 is possible ie eaaa Number of connectable Connectable capacity 7 FDCH400R XE6 1 to 27 units 200 600 FDCH450KXE6 1 to 30 units 225 675 Note 2 In case that the indoor unit types to be connected are FDK FDFL FDFU or FDFW series the maximum connectable indoor capacity will be 130 or less 3 According to the total piping length the maximum connectable indoor capacity will decrease much more as shown in Page 39 b Capacity from 50 to 140 is possible Number of connectable Connectable capacity FDCHS04KXE6 I to 32 units 252 106 FDCH560KXE6 I to 35 units 280 784 FDCH615KXE6 2 to 39 units 308 861 FDCH680KXE6 2 to 43 units 340 952 FDCH735KXE6 2 to 46 units 368 1029 FDCH800KXE6 2 to 50 units 400 1120 FDCH850KXE6 2 to 54 units 425 1190 FDCH900KXE6 2 to 57 units 450 1260 FDCH960R XE6 2 to 61 units 477 1344 Note 2 In case that the indoor unit types to be connected are FDK FDFL FDFU or FDFW series the maximum connectable indoor capacity will be 130 or less 3 According to the total piping length the maximum
24. when the indoor unit is connect to the power cable in series also the wire size and minimum length when the power drop is less than 2 are shown If the current exceeds the value in the table above change the wire size according to the indoor wiring regulations Please adapt it to the regulations in effect in each country 10 KX T 146 Address setting failure indication Code Contents of a display Please check Are signal lines connected properly without any loose connections A00 Unable to find any indoor unit that can be actually communicated with is power for indoor units all turned on A01 The number of the indoor units that can be actually communicated with is less Are signal lines connected properly without any loose connections than the number specified in P33 on the 7 segment display panel nput the number of connected indoor units again i i i ions The number of the indoor units that can be actually communicated with is Are signal lines connected properly without any loose connections A02 Are the network connectors coupled properly more than the number specified in P33 on the 7 segment display panel input the number of connected indoor units again nput the starting address again nput the number of connected indoor units again Perform manual address setting While some units are operating in the previous SL mode on the network the Separate previous SL setting unit from the network automatic address setting
25. where the piping is secured as illustrated below A failure to observe this instruction may result in a pipe fracture depending on a method of isolating vibrations employed e The pipe should be anchored every 1 5m or less to isolate the vibration Outdoor unit Outdoor unit FA RAST A o gA Over 1 5m we Pipe fastening position 2 Piping work Important CAUTION Important If you tighten it without using double Spanners you may deform e Please take care so that installed pipes may not touch components within a unit the operation valve which can cause an inflow of nitrogen gas into the outdoor unit In laying pipes on the installation site keep the operation valves shut all the time e Give sufficient protections compressed and brazed or by an adhesive tape to pipe ends so that any water or foreign matters may not enter the pipes e In bending a pipe bend it to the largest possible radius at least four times the pipe diameter Do not bend a pipe repeatedly to correct its form e An outdoor unit s liquid pipe and liquid refrigerant piping are to be flare connected Flare a pipe after engaging a flare nut onto it A flare size for R410A is
26. x 1 3 I Dx0 01 When D gt 0 calculate I using the above equation When D S 0 take it as I 0 Important Outdoor unit P kg When the Additional refrigerant quantity for piping P is over the 400 680 50 following table please separate the refrigerant line 735 1360 100 Pay attention to the following points in addition to the above for the R410A and compatible machines e To prevent a different oil from entering please assign dedicated tools etc to each refrigerant type Under no circumstances must a gauge manifold and a charge hose in particular be shared with other refrigerant types R22 R407C etc e Refrigerant types are indicated by color at the top of the cylinder 5 Pink for R410A Always confirm this e Do not use a charge cylinder under any circumstances There is a danger that the composition of the refrigerant will change when R410A is transferred to a cylinder e When charging refrigerant use liquid refrigerant from a cylinder If refrigerant is charged in a gas form the composition may change considerably Please note Put down on the refrigerant charge volume recording plate provided on the back of the front panel the amount of refrigerant calculated from the pipe length y GAUTION Be sure to record the refr
27. 0 Combination 615 680 3 76 650 1690 1360 Combination 680 680 3 80 680 1768 Optional parts Refrigerant distribution piping components supplied as optional parts will become necessary in installing Branching pipe set on the indoor unit side Header set on the indoor unit side the unit Outdoor unit Outdoor unit Model type DIS Model type HEAD As refrigerant distribution piping components 5 branching pipe sets model type DOS for the gt outdoor unit side piping branching pipe sets model Branching pipe set D D D D type DIS and header sets model type HEAD for on the indoor unit side the outdoor unit side piping are available Model type DIS Indoor unit Select according to the application Please refer to C 4 Refrigerant piping work in selecting A B i A If you are uncertain please do not hesitate to D consult with your distributor or the manufacturer li D PL Please use refrigerant branching sets and header a nng pipa si Toc sets designed exclusively for R410A without fail Model type DOS Figure 1 X When connecting the
28. 112 or higher however enlarge the size of gas pipe for 40 m or higher to 1 For details refer to Page 40 4 1 3 d indoor unit side branching pipe indoor unit 112 140 160 15 88 19 05 224 19 05 22 22 280 22 22 25 4 ass 10 KX T 146 Allowable length of refrigerant piping height difference between indoor and outdoor unit 1 Branch pipe System Branch piping used P j Oil equalization Outdoor unit Indoor unit SF cc Ea denotes Jj piping Outdoor s m MAX 40m 2 M MAX 130m MAX 90m Highest indoor unit Y El 2 el 4 i amp E E m ir Outdoor unit El side branch V pii DOS2A 1 VI MAX 90m gt Lowest indoor unit 2 Header System Header used Outdoor unit Indoor unit Oil equalization piping Outdoor MAX 40m c e Highest indoor unit El a 2 I i B T Quid i II E a Side Branch First branch a DOS 2A 1 Header Lowest indoor unit MAX 90m 0 i Note 1 Indoor units 224 and 280 can not be connected to the header 3 Mixed System Branch piping and Header used Outdoor unit Indoor unit Oil equalization piping Outdoor Highest indoor unit unit I MAX 90m MAX
29. 40m MAX 130m sl Header lt MAK 15m 50 90m 9 MAX 15m Outdoor unit side branch DOS 2A 1 First branc MAX 0 4m lt j VI MAX 90m E i Lowest indoor unit Note 1 A branch piping system cannot be connected after a header system 2 90m or less However difference between the longest and shortest piping 40m or less 3 In case of less than 50m the standard models are applied Important When the Additional refrigerant quantity for piping P is over the following table please separate the refrigerant line m 10 KX T 146 MITSUBISHI HEAVY INDUSTRIES LTD MULTI AIR CONDITIONER OUTDOOR UNIT FOR BUILDINGS 6 KX SERIES INSTALLATION MANUAL Outdoor unit capacity FDCH400 1360 OThis installation manual deals with outdoor units and general installation specifications only For indoor units please refer to the respective installation manuals supplied with your units OPlease read this manual carefully before you set to installation work and carry it out according to the instructions contained in this manual Precautions for safety Read these Precautions for safty carefully before starting installation work and do it in the proper way Safety instructions listed here are grouped into A Warnings and A Cautions If a non compliant installation method is likely to
30. Manual No 10 KX T 146 updated October 26 2010 TECHNICAL MANUAL VRF INVERTER MULTI SYSTEM AIR CONDITIONERS Alternative refrigerant R410A use models High Head Models 90m OUTDOOR UNIT e Single use Used also for combination FDCH335KXE6 K 400KXE6 450RXE6 504KXE6 560KXE6 560KXE6 K 615KXE6 680KXE6 3X FDCH335KXE6 K amp FDCH560KXE6 K are only used for combining with other models e Combination use FDCH735KXE6 800KXE6 850KXE6 900KXE6 960KXE6 1010KXE6 1065KXE6 1130KXE6 1180KXE6 1235KXE6 1300KXE6 1360KXE6 In this Technical Manual the High Head Models of outdoor units only are shown Regarding the standard models please see the Manual No 09 lt KX DB 127 No 10 RX DB 144 Data Book and i Manual No 09 KX SM 128 Service Manual e AP o AS MED gt e e MEER o EP e ED a o ME e AA o Ee ME gt o END gt e ER o e MD a 4 A e P gt AA EE e A o MED Ll ME o gt EE EP a o MED e o ER n RA MITSUBISHI HEAVY INDUSTRIES LTD 10 KX T 146 CONTENTS 1 GENERAL INFORMATION x 2nnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnvnnennnnnnnnnnnnr 1 1 1 Specific featUres III 1 1 2 How to read the model Name gt xxxxxanxmnannnnnnnnnnnnnnnnnnnnnnnnnnennnennnnennnennnnnn 2 1 3 Table of models emMMMMMMMMeeeeeeeeee BMBBMeeeeeee e33333333eeee 2 1 4 Table of indoor units panel Option HH 2 1 5 Outdoor units combination table MMMMMMMMMMMMMMMMMMMMMMMMMMBeeHe
31. an 130 b Models FDCH960 1010 1065 1130 1180 1235 1300 1360KXE6 Combination outdoor unit models Indoor unit FDCH504 FDCH560 FDCH560 FDCH615 FDCH680 Connectable Number of Models KXE6 KXE6 KXE6 K KXE6 KXE6 capacity connectable units FDCH1010KXE6 2 mE 504 1311 2 to 59 unit FDCH1065KXE6 1 1 i 532 1384 2 to 62 unit FDCH1130KXE6 2 m 560 1456 2 to 66 unit FDCH1180KXE6 588 1528 3 to 69 unit FDCH1235KXE6 615 1599 3 to 72 unit FDCH1300KXE6 650 1690 3 to 76 unit FDCH1360KXE6 680 1768 3 to 80 unit c Outdoor unit side branch pipe set Option For two units for FDCH 735K XE6 1360K XE6 DOS 2A 1 Note 1 Be sure to use this when combining units d Branch pipe set Option Less than 180 DIS 22 1 180 or more but less than 371 DIS 180 1 371 or more but less than 540 DIS 371 1 540 or more DIS 540 2 e Header pipe set Option Total capacity downstream Header set model type Number of branches Less than 180 HEAD4 22 1 4 branches at the most 180 or more but less than 371 HEAD6 180 1 6 branches at the most 371 or more but less than 540 HEAD8 371 1 8 branches at the most 540 or more HEAD8 540 2 8 branches at the most Note 1 Indoor units 224 and 280 can not be connected to the header 10 KX T 146 4 RANGE OF USAGE amp LIMITATIONS e Single use also for combined use System
32. any MEE openings in the section of piping laid outdoors should be sealed stringently As long as possible avoid open ends left facing upward Make them face either horizontally or downward Cut in the middle A branching joint for both gas and liquid must always be positioned in such a way that it branches either horizontally or vertically In the case of a branching pipe set model type DIS 777777777777 Floor surface Floor surface Floor surface Floor surface O x x O In the case of a header set model type HEAD Gas side T Floor surface Floor surface 77777777777 Floor surface O x x liquid side 3 Formal p E E Fp A HH G Floor surface Floor surface Always apply nitrogen gas when soldering joints If nitrogen gas is not applied a large amount of film oxide will be formed which could lead to a critical failure in the unit Use caution to prevent moisture or any foreign matters from entering the pipe when connecting pipe ends For the method of air tightness testing and pulling air please refer to the installation manual of the outdoor unit 6 Do not leave piping with any open ends uncovered to prevent water or foreign matters from entering inside Use pipe cutter to cut pipes empra Floor surface 69 10 KX T 146 9 OPTIONAL PARTS 9 1 Installation manual of the blowout duct flange plate kit for FDUT Use this kit when connecting a duct which produces the static pressure
33. applicable to European installations are shown in parentheses Outdoor unit 6318 X t1 1 934 92 X t1 2 619 05x t1 0 19 05 X t1 0 38 1 X t 1 35 34 92 x t1 2 22 22 X t1 0 22 22X t1 0 c Indoor unit side first branching pipe Indoor unit side branching pipe Section C in Figure 1 Please choose from the table below an appropriate pipe size as determined by the total capacity of indoor units connected downstream provided however that the pipe size for this section should not exceed the main size Section B in Figure 1 Total capacity of indoor units Gas pipe Liquid pipe Less than 70 12 7X t1 0 b 952X t08 70 or more but less than 180 15 88X t1 0 1 180 or more but less than 371 19 05X t1 0 1 12 7 X t0 8 25 4X t1 0 x 371 or more but less than 540 28 58 15 88 X t 1 0 540 or more but less than 700 28 58 X t 1 0 700 or more but less than 1100 31 8X t1 1 634 92 Xx t 1 2 19 05x t 1 0 1100 or more 38 1 X 11 35 634 92 X t1 2 Please use C1220T 1 2H for 19 05 or larger pipes Pipe sizes applicable to European installations are shown in parentheses 1 If the gas pipe size at downstream is bigger than that mentioned in the table be sure to use the pipe size as same as that of downstream pipe d Indoor unit side branching pipe Indoor unit Section D in Figure 1 gas pipe with the capacity of 112
34. art to stop or 3 minutes or more from stop to start stop start i frequency Stop time 3 min or more Voltage fluctuation Within 10 of rated voltage Power source voltage Voltage drop during start Within 15 of rated voltage Phase unbalance Within 3 of rated voltage Note 1 When connecting the indoor unit type FDR FDFL FDFU or FDFW Series limit the connectable capacity not higher than 130 2 When the pipe extension length exceeds 510 m additional refrigerant oil must be charged 1 000 cc 3 In case of less 50m the standard models are applied 4 If superlink I previous superlink is selected all of new functions for KX6 such as automatic address setting function for multiple refrigerant systems and etc will be cancelled 5 Total pipe length Select the tatal pipe length depending on the connectable capacity of indoor units so that it will fall within the following range Emp eee eee eng 300m 510m Outdoor units capacity A Max connectable capacity of indoor units 400 450 150 504 960 140 E 1010 1360 13096 o amp A 1 a 130 4 72 m 1 S 1 0 100 NE apaa Sn E 9 o 1000 m Total pipe length 6 On indoor units with the capacity of 112 or higher however enlarge the size of gas pipe for 40 m or higher to 1 For details refer to Page 40 4 1 3 d indoor unit side branching pipe indoor unit 112 140 160
35. ause material damage and personal injury Ensure the unit is stable when installed so that it can withstand earthquakes and strong winds Unsuitable installation locations can cause the unit to fall and cause material damage and personal injury The electrical installation must be carried out by the qualified electrician in accordance with the norm for electrical work and national wiring regulation and the system must be connected to the dedicated circuit Power supply with insufficient capacity and incorrect function done by improper work can cause electric shocks and fire Be sure to shut off the power before starting electrical work Failure to shut off the power can cause electric shocks unit failure or incorrect function of equipment Be sure to use the cables conformed to safety standard and cable ampacity for power distribution work Unconformable cables can cause electric leak anomalous heat production or fire else the prescribed cables for electrical connection tighten the cables securely in terminal block and relieve the cables correctly to prevent overloading the terminal blocks Loose connections or cable mountings can cause anomalous heat production or fire Arrange the wiring in the control box so that it cannot be pushed up further into the box Install the service panel correctly Incorrect installation may result in overheating and fire in connecting the power cable make sure that no anomalies such as dust deposits sock
36. branching pipe size varies with the connected capacity total capacity connected 180 or more but less than 371 DIS 180 1 downstream determine a size from the following table 371 or more but less than 540 DIS 371 1 Please note e In connecting an indoor unit with the indoor unit side branching pipe set please use a pipe 540 or more DIS 540 2 conforming to the pipe size specified for indoor unit connection e Always install branching pipes both gas and liquid pipe either horizontally or vertically O 1 2c A O Vertical 039 Floor surface 777777777777 Floor surface 777777777777 Floor surface Floor surface b Header Method e Depending on the number of units connected connect plugged pipes to be procured on the installer s part at a branching point on the indoor unit connection side e For the size of a plugged pipe please refer to the documentation for a header set optional part Total capacity downstream Header set model type Number of branches Less than 180 HEAD4 22 1 4 branches at the most 180 or more but less than 371 HEAD6 180 1 6 branches at the most 371 or more but less than 540 HEAD8 371 1 8 branches at the most 540 or more HEAD8 540 2 8 branches at the most Please note a In connecting a header with an indoor unit please use a pipe conforming to the pipe size specified for indoor unit connection b In installing a header always arrange a gas side header to branch horizontally and a liquid side heade
37. ced Where no TV set or radio receiver is placed within the range of 5m O Where snow will not accumulate b If there is a possibility to be short circuit of air please install an air flow deflector optional part at the air outlet port of outdoor unit CAUTION X 1 Please prepare it locally The dimension of optional part is mentioned in page 74 c In snowfall area install the outdoor unit on a mounting base and fit a snow hood locally prepared on the outdoor unit to prevent it from being buried in snow In snowfall area collective drainage is prohibited d Do not install the outdoor unit in area where combustible gases might leak e Securely install the outdoor unit on a place where it is strong enough to support its weight f Do not install the outdoor unit in special places listed below If you install it in such places it may cause corrosion damage or malfunction Where corrosive gases such as sulfurous acid gas etc will be emitted and accumulated Where sulfurous gas chloride gas acid and alkaline will be emitted and accumulated In ammonic atmosphere n salty atmosphere such as coastline Where oil mist is floating Where carbon fiber metal powder or any powder is floating Where the outdoor unit will be exposed to chimney smoke Where any equipments will generate electromagnetic field or high frequency harmonic Such as inverter standby generator medical high frequency equipment telec
38. ddress setting Indoor unitC Indoor unitD Indoor unitE 1 Make sure that a measurement between the power supply terminal block and ground when measured with a 500V megger is greater than 1 MQ When the unit is left for a long time with power OFF or just after the installation there is possibility that the refrigerant is accumulated in the compressor and the insulation resistance between the contact terminals for power supply and grounding decreases to 1M O or around When the insulation resistance is 1MQ or more the insulation resistance will rise with crank case heater power ON for 6 hours or more because the refrigerant in the compressor is evaporated 2 Please check the resistance of the signaling wire terminal block before power is turned on If a resistance measurement is 100 Q or less it suggests a possibility that power cables are connected to the signaling wire terminal block Please refer to 6 3 Standard resistance valve 3 Be sure to turn on the crank case heater 6 hours before operation 4 Make sure that the bottom of the compressor casing is warm higher than outdoor temperature 5 C 5 Be sure to fully open the operation valves liquid gas and Equalizen oil piping for a combined installation only for the outdoor unit Operating the outdoor unit with the valves closed may damage the compressor 6 Check that the power to all indoor units has been turned on If not wate
39. different from that for conventional RA07C Although we recommend the use of flaring tools developed specifically for R410A conventional flaring tools can also be used by adjusting the measurement of protrusion B with a protrusion control gauge e Tighten a flare joint securely with two spanners Observe flare nut tightening torque specified in the table below A Flared pipe end A mm m i Copper pipe protrusion for flaring B mm Copper Copper In the case of a rigid clutch pipe outer A 0 I pipe outer gid clutch type diameter 0 4 diameter With an R410A tool With a conventional tool 6 35 9 1 6 35 9 52 13 2 9 52 1 2 0 0 5 0 7 1 3 012 7 16 6 E 012 7 15 88 19 7 i 15 88 Ll Tightening torque N m Operation valve size Tightening torque Tightening angle Recommended length of tool handle mm Nem e mm Do not hold the valve cap area with a spanner 96 35 1 4 147418 4560 150 99 52 3 8 347 42 307 45 200 912 7 1 2 49 61 3045 250 Use a torque wrench If a torque wrench is not available 015 88 5 8 68 82 1520 300 fasten the flare nut manually first and then tighten it 919 05 3 4 100 120 15 20 450 further using the left table as a guide us e Do not apply any oil on a flare joint e Pipes are to be blazed to connect an outdoor unit s gas pipe with refrigerant pip
40. e Unit Pa Model Max static pressure at outside of unit 22 28 36 35 45 56 50 3 For models 22 28 and 45 the setting for high ceiling can be made using the remote controller i ie 10 KX T 146 4 Characteristics of fan 1 Models FDUT22 28KXE6D UT DAS1E 2 Model FDUT36KXE6D UT DAS1E m3 min m3 min Lower Limit 4 5 Lower Limit 5 4 Standard 735 Standard 8 5 Upper Limit 8 3 Upper Limit 9 4 40 40 20 HA 20 HA High 10 10 Static pressure Pa Static pressure Pa 4 0 0 4 45 5 6 7 75 88 3 5 5 4 6 7 8 85 9 9 Air flow m3 min Air flow m3 min 3 Model FDUT45KXE6D UT DAS2E 4 Model FDUT56KXE6D UT DAS2E m3 min m3 min Lower Limit 7 2 Lower Limit 7 7 Standard 12 Standard 12 5 Upper Limit 13 2 Upper Limit 13 8 50 50 40 40 amp 30H amp 30 2 2 2 2 5 5 a a 2 ia 20 20 10 10 0 77 2 8 9 10 11 12 13 7 8 9 10 11 12 13 14 13 2 7 7 5 13 8 Air flow m3 min Air flow m3 min 10 KX T 146 9 2 Air flow deflector 1 Assembling drawing Tapping screw gt s GPlate 5 Top Plate Plate 1 1 Side Plate Left 2 en Go lt Na I OG c S o o ar N c A Ta Lo So S Drilling screw x2 Mo al E Outdoor unit A H
41. e Phase unbalance Within 3 of rated voltage Note 1 When connecting the indoor unit type FDK FDFL FDFU or FDFW Series limit the connectable capacity not higher than 130 2 When the pipe extension length exceeds 510 m additional refrigerant oil must be charged 1 000 cc 3 In case of less 50m the standard models are applied 4 If superlink I previous superlink is selected all of new functions for KX6 such as automatic address setting function for multiple refrigerant systems and etc will be cancelled 5 Total pipe length Select the tatal pipe length depending on the connectable capacity of indoor units so that it will fall within the following range Outdoor units capacity A Max connectable capacity of indoor units 9 400 450 150 504 960 140 D 1010 1360 130 o A o 130 5 S 3 10090 E 9 9 510m 1000 m Total pipe length 6 On indoor units with the capacity of 112 or higher however enlarge the size of gas pipe for 40 m or higher to 1 For details refer to Page 40 4 1 3 d indoor unit side branching pipe indoor unit 112 140 160 15 88 19 05 224 19 05 22 22 280 922 22 925 4 12 e Combination use System Item 10 KX T 146 FDCH735KXE6 FDCH800KXE6 FDCH850KXE6 FDCH900KXE6 FDCH960KXE6 Indoor air temperature Upper lower limits Outdoor air temperature Upper lower limits Refer to page 17
42. e power factor while it can cause an abnormal overheat accident h For power supply cables use conduits i Please do not lay electronic control cables remote control and signaling wires and other high current cables together outside the unit Laying them together can result in malfunctioning or a failure of the unit due to electric noises j Power cables and signaling wires must always be connected to the power cable terminal block and secured by cable fastening clamps provided in the unit k Fasten cables so that they may not touch the piping etc I When cables are connected please make sure that all electrical components within the electrical component box are free of loose connector coupling or terminal connection and then attach the cover securely Improper cover attachment can result in malfunctioning or a failure of the unit if water penetrates into the box m Make sure to use circuit breakers earth leakage breaker and circuit breaker of proper capacity Use of breakers of larger capacity could result in trouble on components or fire accident n Install isolator or disconnect switch on the power supply wiring in accordance with the local codes and regulations The isolator should be locked in OFF state in accordance with EN60204 1 0 After maintenance all wiring wiring ties and the like should be returned to their original state and wiring route and the necessary clearance from all metal parts should be secured
43. ed independently and with the combined capacity of 1065 or 1130 or with the combined capacity of 1180 When the unit is used independently and with the combined capacity of 1065 or 1130 the model type is FDC560KXE6 When the unit is used with the combined capacity of 1180 the model type is FDC560KXE6 K Please note that an installation involving a combination other than those listed below is not operable For example you cannot operate 560 and 680 in combination There is restriction on the connectable capacity of indoor units depending on the total pipe length For details refer to 4 1 Total pipe length Outdoor unit Indoor unit Capacity Combination patterns Number of connectable units units Range of the total capacity of indoor units connected in a system 400 Single 1 27 200 600 450 Single 1 30 225 675 504 Single 1 32 252 706 560 Single 1 35 280 784 615 Single 2 39 308 861 680 Single 243 340 952 735 Combination 400 335 K 2 46 368 1029 800 Combination 400 400 2 50 400 1120 850 Combination 400 450 2 54 425 1190 900 Combination 450 450 2 57 450 1260 960 Combination 450 504 2 61 477 1344 1010 Combination 504 504 2 59 504 1311 1065 Combination 504 560 2 62 532 1384 1130 Combination 560 560 2 66 560 1456 1180 Combination 615 560 K 3 69 588 1528 1235 Combination 615 615 3 72 615 1599 130
44. emReeHnsee 3 2 OUTDOOR UNIT s sannannnnnnnnnnnnannnnnnnnnnnnnnennnvnnnnnnnnennnvnnnnennanennvnnnnennanennavnnnennanennene 4 2 1 Specifications eene 4 22 Exterior dimensions MIHI 6 2 3 Electrical wiring RI SS RA A AA 8 24 Noise level m MM 9 3 PIPING SYSTEM nena 10 4 RANGE OF USAGE 8 LIMITATIONS xx xannnnnunnnnnnnnnnnnnnnnuvnnnvnnnnvnnnnennvnnnnnnnnn 11 5 SELECTION CHART s sarnnnnnnnnnnnnnnnnnvnnnnnnnannnnnnnnnennevnnnnennanennvennnvnnanennannnnvannnene 18 6 KX SERIES INSTALLATION MANUAL 36 7 CHECK OPERATION PROCEDURE 00m 60 8 INSTRUCTIONS FOR INSTALLING THE BRANCH PIPE SET OPTION 68 9 OPTIONAL PARTS nene 72 9 1 Installation manual of the blowout duct flange plate kit for FDUT 72 92 a el de ee NR RR 74 10 OUTDOOR AIR OA INTAKE FOR FDT AND FDTW meHHHH 79 10 KX T 146 1 GENERAL INFORMATION 1 1 Specific features 1 The R410A refrigerant is used The refrigerant R410A with zero coefficient of ozone destruction is used in order to reduce the CO discharge volume R410A is a pseudo azeotropic refrigerant which has characteristics of slight temperature slide due to a little change in consistency under the mixed phase of gas and liquid but additional charging of this refrigerant on site is possible 2 Height difference up to 90m is available Maximum allowable height difference between the outdoor unit and the indoor unit in a position of the lowest is extend from 50m to 90m When
45. et clogging or wobble are found and insert the plug securely Accumulation of dust clogging on the socket or looseness of plugging can cause electric shocks and fire Be sure not to reuse existing refrigerant pipes Conventional refrigerant oil or chlorine contained in the conventional refrigerant which is remaining in the existing refrigerant pipes can cause deterioration of refrigerant oil of new unit And 1 6 times higher pressure of R410A refrigerant than conventional one can cause burst of existing pipe personal injury or serious accident Do not perform brazing work in the airtight room It can cause lack of oxygen else the prescribed pipes flare nuts and tools for R410A Using existing parts for R22 or R407C can cause the unit failure and serious accidents due to burst of the refrigerant circuit Tighten the flare nut by using double spanners and torque wrench according to prescribed method Be sure not to tighten the flare nut too much Loose flare connection or damage on the flare part by tightening with excess torque can cause burst or refrigerant leaks which may result in lack of oxygen Do not open the service valves for liquid line and gas line until completed refrigerant piping work air tightness test and evacuation If the compressor is operated in state of opening service valves before completed connection of refrigerant piping work you may incur frost bite or injury from an abrupt refrigerant outflow and air can be sucked i
46. g the unit with the outlet pipe thermistor the inlet pipe thermistor the pressure sensor etc removed can result in a compressor burnout Avoid operation under such conditions in any circumstances ACCESSORY Name Quantity Usage location In operating the unit in the silent mode or the forced cooling heating mode insert it to the outdoor unit board s CNG Wiring 4 It is supplied with the unit You can find it taped inside the control box When the installation work is completed Instruction manual give instructions to the customer and ask him her to keep it COMBINATION PATTERNS The possible outdoor unit combinations and the number and the total capacity of indoor units that can be connected in a system are shown in Indoor unit Attached on the side panel below the operation valve Remote controller Connection OK NO the table below FDOAAKXE6 RC E3 2 cores RC E4 2 cores OK Please always use indoor units designed exclusively for R410A For connectable indoor unit model names please check with our catalog etc FDOAA ARXE4R KXE4BR KXE5R RC E1R 3 cores OK FDOAAAKXE4 KXE4 A KXE4A it can be used in combination with the following indoor unit Notabilia The same outdoor unit is used whether it is used alone or in combination with another unit RC E1 3 cores NO e Model type differs on the unit with 560 capacity depending on whether the unit is us
47. he size of gas pipe for Height difference between 40 m or higher to 1 For details refer to 4 1 3 d Indoor unit side branching pipe Indoor unit Outdoor unit outdoor units 0 4 m However difference between the longest and shortest piping 40 m or less e Allowable elevation difference head difference De a a When an outdoor unit is installed above sesa eee eaaa ener anaa Outdoor unit branching pipe 5 m b Difference in the elevation of indoor units in a system c Elevation difference between the first branching point and the LA indoor unit lt ss rsrssrssissessesissesrussessossnsssersosesisserissesess esis 15 m or less f e Restrictions on piping applicable to the section between an dd outdoor unit andan outdoor unit side branching pipe combination unit S Height difference between a Difference in the elevation see eee aee renea eea nenen anna 0 4 m or less indoor units 15 m b Distance between an outdoor unit and an outdoor unit side branching pipe 5 m or less c Length of oil equalization piping AAA ANA 10 m or less Difference in the elevation 50 90 m Actual length 160 m Important Equivalent length 185 m When the Additional refrigerant quantity for piping P is Total length 1000 m over the following table please separate the refrigerant line Outdoor unit P kg Indoor unit 400 680 50 735 1360 100 L 2 Piping material selection e Please use pipes clean on b
48. igerant volume because the information is necessary to perform the installation s maintenance service a 4 oQ I I Z It is located in back of this front panel 44 10 KX T 146 4 5 Heating and condensation prevention Dress refrigerant pipes both gas and liquid pipes for heat insulation and prevention of dew condensation Improper heat insulation anti dew dressing can result in a water leak or dripping causing damage to household effects etc uUse a heat insulating material that can withstand 120 C or a higher temperature Poor heat insulating capacity can cause heat insulation problems or cable deterioration a The gas pipe can cause during a cooling operation dew condensation which will become drain water causing a possible water leak accident or reach during a heating operation as high a temperature as 60 C to 110 C posing a risk of burns when touched accidentally So do not fail to dress it with a heat insulation material b Wrap indoor units flare joints with heat insulating parts pipe cover for heat insulation both gas and liquid pipes C Give heat insulation to both gas and liquid side pipes Bundle a heat insulating material and a pipe tightly together so that no gaps may be left between them and wrap them together with a connecting cable by a dressing tape d Although this air conditioning unit has been tested under the JIS condensation test conditions the dripping of wate
49. indoor unit type FDK FDFL or FDFU series limit the connectable capacity not higher than130 me O installation in lateral and longitudinal rows 6 units in lateral row and 4 units in longitudinal row It must be open above the units 1000mm or less H 2 8 units in lateral row and 4 units in longitudinal row i 1078 sie 01011846 CC LO Barrier It must be open above the units 750mm or more O O H 1000mm or less Barrier 1500mm or more Oo H 1000mm or less H 1000mm or less Barrier 00mm or more 100mm or more 100mm or more 10 KX T 146 1000mm or less H 219 319 319 919 o oJlo oF TO oo or 00 00 00 00 1000mm or less Barrier H 400mm or more 1500mm or more 400mm or more 350mm or more Barrier 1000mm or less H OOOO 3 Unit delivery and installation A CAUTIO 3 1 Delivery e By defining a cartage path carry in the entire package containing a unit to its installation point e in slinging a unit use two canvas belts with plates cloth pads or other protections applied to the unit to prevent damage Please note a Please do not fail to put belts through the rectangular holes of a unit s anchoring legs b Apply cloth pads between a canvas belt and a unit to prevent damage 3 2 Notabilia for installation 1
50. ing or refrigerant piping with a branching pipe set e Blazing must be performed under a nitrogen gas flow Without nitrogen gas a large quantity of foreign matters oxidized film are created causing a critical failure from capillary tube or expansion valve clogging e Brazing of the operation valve and the pipes should be performed while cooling the valve body with a wet towel e Perform flushing To flush the piping charge nitrogen gas at about 0 02MPa with a pipe end closed with a hand When pressure inside builds up to a sufficient level remove the hand to flush in flushing a pipe close the other end of the pipe with a plug Operation procedure O In laying pipes on the installation site keep the operation valves shut all the time 2 Blazing must be performed under a nitrogen gas flow Without nitrogen gas a large quantity of foreign matters oxidized film are created causing a critical failure from capillary tube or expansion valve clogging Plug the end of the pipe with tape or other lt N2 gt Re 4 material and fill the pipe vvith nitrogen gas Taping I Only use nitrogen gas N2 Nitrogen Brazing Give sufficient protections compressed and brazed or with an adhesive tape so that water or foreign matters may not enter the piping Brazin razing Adhesive tape 42 10 KX T 146 4 Method of operating operation valves Method of opening closing a valve ORemove the cap
51. ing start Within 15 of rated voltage Phase unbalance Within 3 of rated voltage Note 1 When connecting the indoor unit type FDK FDFL FDFU or FDFW Series limit the connectable capacity not higher than 130 2 When the pipe extension length exceeds 510 m additional refrigerant oil must be charged 1 000 cc 3 In case of less 50m the standard models are applied 4 If superlink I previous superlink is selected all of new functions for KX6 such as automatic address setting function for multiple refrigerant systems and etc will be cancelled 5 Total pipe length Select the tatal pipe length depending on the connectable capacity of indoor units so that it will fall within the following range Outdoor units capacity A Max connectable capacity of indoor units 400 450 15096 504 960 14096 1010 1360 13096 A 130 1 77 100 b Connectable capacity q 300m 510m 1000 m Total pipe length 6 On indoor units with the capacity of 112 or higher however enlarge the size of gas pipe for 40 m or higher to 1 For details refer to Page 40 4 1 3 d indoor unit side branching pipe indoor unit 112 140 160 15 88 19 05 224 19 05 22 22 280 22 22 925 4 1I System 10 KX T 146 FDCH560KXE6 FDCH615KXE6 FDCH680KXE6 Item Indoor air temperature Upper lower limits Outdoor air temperature Upper
52. iping MAX 10m Indoor unit atmosphere behind ceiling temperature and humidity Only models FDT FDTC FDTW FDTS FDTQ FDU FDUM FDUH Dew point temperature 28 C or less relative humidity 80 or less FDE FDK FDFL FDFU Dew point temperature 23 C or less relative humidity 80 or less Compressor 1 cycle time 6 min or more 3 minutes or more from start to stop or 3 minutes or more from stop to start stop start frequency Stop time 3 min or more Voltage fluctuation Within 10 of rated voltage Power source voltage Voltage drop during start Within 15 of rated voltage Phase unbalance Within 3 of rated voltage Note 1 When the pipe extension length exceeds 510 m additional refrigerant oil must be charged 1 000 cc 3 In case of less 50m the standard models are applied 3 If superlink I previous superlink is selected all of new functions for KX6 such as automatic address setting function for multiple refrigerant systems and etc will be cancelled 4 Total pipe length Select the tatal pipe length depending on the connectable capacity of indoor units so that it will fall within the following range Outdoor units capacity A Max connectable capacity of indoor units 9 400 450 15094 504 960 14094 2 1010 1360 S Ao 3 A a 130 LDL El 9 100 g gS o O 510m 1000 m Total pipe length 5 On indoor units with the capacity of
53. ith external input terminals open or at heating with them closed Master SW5 1 to ON SW5 2 to ON Cooling test run Master SW5 1 to ON SW5 2 to OFF Heating test run Close the fluid operation valve on outdoor unit and set as follows Master Ege p be Es Pump down operation 3 SW5 1 on PCB to ON SW4 5 0FF SW4 6 0FF 2 80 Factory default M ster SW4 5 0N SW4 6 0FF 2 60 Set allocation of external Inputting signals to external input terminals selects the demand mode SW4 5 0FF SW4 6 0N 2 4096 input function to 1 2 J13 closed Level input J13 open Pulse input SW4 5 0N SW4 6 0N 2 00 Master SW5 5 Communication method selection ON Previous SL communication OFF New SL communication Master slave SW6 3 to ON High static pressure mode Master J13 Closed Factory default J13 Open External input switing CnS1 CnS2 only Closed Level input Open Pulse input Master slave J14 Closed Factory default J14 Open Defrost recover temperature Closed normal Open cold weather district Master slave J15 Closed Factory default J15 Open a Defrost start tenperature Closed normal Open cold weather district Operation priority selection 0 First push priority at shipping Master C70 1 Last push priority PTR C75 Outdoor unit fan snow protection control eiu pi at shipping 2 stage demand mode 3 OFF Disabled at shipping P10 000 040 060 080 To change the 2 stage demand mode on the 7 segmen
54. izing with nitrogen gas after completed refrigerant piping work If the density of refrigerant exceeds the limit in the event of refrigerant leakage in the small room lack of oxygen can occur which can cause serious accidents Perform installation work properly according to this installation manual Improper installation can cause abnormal vibrations or increased noise generation Carry out the electrical work for ground lead with care Do not connect the ground lead to the gas line water line lightning conductor or telephone line s ground lead Incorrect grounding can cause unit faults such as electric shocks and fire due to short circuiting Never connect the grounding wire to a gas pipe because if gas leaks it could cause explosion or ignition Ensure that no air enters in the refrigerant circuit when the unit is installed and removed If air enters in the refrigerant circuit the pressure in the refrigerant circuit becomes too high which can cause burst and personal injury Do not run the unit with removed panels or protections Touching rotating equipments hot surfaces or high voltage parts can cause personal injury due to entrapment burn or electric shocks Be sure to fix up the service panels Incorrect fixing can cause electric shocks or fire due to intrusion of dust or water Do not perform any repairs or modifications by yourself Consult the dealer if the unit requires repair If you repair or modify the unit it can cause
55. min Selection of booster fan gt Booster fan should have a static pressure calculated with following formula Static pressure of booster fan The pressure loss at the inlet port of FDT from above diagram Pressure loss in the OA duct In case ofp 100 duct 5Pa m is required Select the booster fan from the fan characteristic diagram 79 10 KX T 146 2 FDTW If it is required to intake OA through FDTW unit make sure to check following points carefully in order to conform to the requirement of customer If the OA intake volume through FDTW unit is not satisfied with the required ventilation air volume consider to install an indepemdent ventilation system 1 2 3 4 5 6 7 Be sure to calculate cooling heating load considering the ventilation heat load and to decide the air conditioning system Be sure that Air flow m min should be within the range mentioned in following diagram Be sure to decide the OA intake volume considering the mixed air temperature be within the usage temperature range of FDT unit Especially in following case please consider to intake OA after processing OA or reducing the OA intake volume gt If the dew point of OA is higher than the temperature Dry Bulb of Return Air RA to FDTW unit It may have dew condensation gt If the temperature of OA is extremely low In case of excessive OA intaken the temperature of mixed air may become out of usage temperature range
56. nits adapted to the high head specification This unit is adapted to the high head specification When the conditions and are met set the address for applicable indoor units as follows For the address setting method refer to 7 1 When more than one indoor units of minimum capacity are used in a system When there are differences in the levels of indoor units of above Set a lower address No for the unit on lower level at a value smaller than that of the unit at higher level It is not necessary to set the address No when only one unit of minimum capacity is used or all indoor units are installed at the same level Take care not to duplicate the address No on indoor units in the same network Example of the selection of address model CD Indoor units with the minimum capacity are units A D and E The indoor units of above are installed at different levels of which the unit E is placed at the lowest level Consequently it is necessary to set the address of indoor unit E at a value smaller than those of units A and D Indoor unit indication Indoor unitA Wy Indoor unit symbol n 3 6 Indoor unit capacity hp Indoor unit address No Indoor unitA Outdoor Unit Indoor unitB 8 TEST OPERATION AND TRANSFER 8 1 Before starting operation Outdoor Unit Indoor unitA Indoor unitB gt A
57. nto refrigerant circuit which can cause burst or personal injury due to anomalously high pressure in the refrigerant Do not put the drainage pipe directly into drainage channels where poisonous gases such as sulphide gas can occur Poisonous gases will flow into the room through drainage pipe and seriously affect the user s health and safety It can also cause the corrosion of the indoor unit and resultant unit failure or refrigerant leak Only use prescribed optional parts The installation must be carried out by the qualified installer If you install the system by yourself it can cause serious trouble such as water leaks electric shocks fire Do not perform any change of protective device itself or its setup condition The forced operation by short circuiting protective device of pressure switch and temperature controller or the use of non specified component can cause fire or burst Be sure to switch off the power supply in the event of installation inspection or servicing If the power supply is not shut off there is a risk of electric shocks unit failure or personal injury due to the unexpected start of fan Consult the dealer or an expert regarding removal of the unit Incorrect installation can cause water leaks electric shocks or fire estop the compressor before closing valve and disconnecting refrigerant pipes in case of pump down operation If disconnecting refrigerant pipes in state of opening service valves before compressor sto
58. ommunication equipment and etc On vehicle or vessel 2 2 Installation space service space example When selecting installation place make sure to keep adequate service space for maintenance work passageway airflow and piping work denotes the service panel side 1 Installing one unit a Make sure to keep the air inlet and service space as shown in the right table and to keep open above the unit b In case that there is a barrier above the unit keep 1 5m or more space above the unit and keep open surrounding the unit CD If 1 5m or more space cannot be kept above the unit be sure to install an air flow deflector locally prepared in order to avoid short circuit of air If there is some barrier suurounding the unit and H3 is higher than 1000mm Ex Installation at terrace H3 wall should be less than 1200mm in height and have ventilation slots in order to get enough air intake If the condition D is fulfilled the air flow deflector is required as well 2 Installing several units Ginstallation in one row side by side no limitation on the number Please leave sufficient clearance around CDWhen one unit is installed the unit without fail Otherwise a risk of compressor and or electric component failure may arise CD 3 units in one row It must be open above the units Wall height H2
59. ort an outdoor unit s anchoring leg by its entire bottom area Please note 1 Install a vibration isolating rubber in such a manner that the entire bottom area of an outdoor unit s anchoring leg will rest on it 2 Do not install an outdoor unit in such a manner that a part of the bottom area of its anchoring leg is off a vibration isolating rubber 38 1 Unit leg Vibration isolating rubber 10 KX T 146 2 INSTALLATION LOCATION Obtain approval from the customer when selecting the installation area 2 1 Selecting the installation location O Where the circulation air is not trapped O Where the foundation or mounting base to install the unit is enough firm O Where any object does not prevent inlet and outlet air flow O Where heat radiation from other heat source does not affect O Where strong winds will not blow against the air outlet port directly O Where electric noise is not subjected to rigid control O Where the drain water can be discharged safely Please note a When installing multiple units provide sufficient air intake space in order to avoid short circuit of air Please refer to installation space example O Where discharged hot air or the operation noise will not bother neighborhood O Where vibration or operation sound will not be transmitted to living space Avoid to install it on the building wall or near the bed room etc O Where any equipments affected by high harmonics are not pla
60. oth the inside and outside and free from contaminants harmful to operation such as sulfur oxides dust chips oil fat and water e Use the following material for refrigerant piping Material phosphorus deoxidized seamless copper pipe C1120T 0 1 2H JIS H3300 Use C1220T 1 2H for 19 05 or larger or C1220T 0 for 15 88 or smaller e Do not use 28 58 x t1 0 31 8xt1 1 34 92 x t1 2 and 38 1 x t1 35 as a bent pipe Thickness and size Please select proper pipes according to the pipe size selection guideline Since this unit uses R410A always use 1 2H pipes of a specified minimum thickness or thicker for all pipes of 19 05 or larger because the pressure resistance requirement is not satisfied with O type pipes For branching pipes use a genuine branching pipe set or header set at all times optional parts For the handling of operation valves please refer to P 8 4 3 3 Method of operating operation valves n installing pipes observe the restrictions on the use of pipes set out in Section 1 Maximum length total pipe length allowable pipe length from the first branching allowable elevation difference head difference without fail Install a branching pipe set paying attention to the direction of attachment after you have perused through the installation manual supplied with it 395 10 KX T 146 3 Pipe size selection a Outdoor unit Outdoor unit side branching pipe Section A in Figure 1 Please u
61. pping you may incur frost bite or injury from an abrupt refrigerant outflow and air can be sucked which can cause burst or personal injury due to anomalously high pressure in the refrigerant circuit Use the circuit breaker for all pole with correct capacity Using the incorrect circuit breaker it can cause the unit malfunction and fire Take care when carrying the unit by hand If the unit weights more than 20kg it must be carried by two or more persons Do not carry by the plastic straps always use the carry handle when carrying the unit by hand Use gloves to minimize the risk of cuts by the aluminum fins eDispose of any packing materials correctly Any remaining packing materials can cause personal injury as it contains nails and wood And to avoid danger of suffocation be sure to keep the plastic wrapper away from children and to dispose after tear it up Pay attention not to damage the drain pan by weld spatter when welding work is done near the indoor unit If weld spatter entered into the indoor unit during welding work it can cause pin hole in drain pan and result in water leakage To prevent such damage keep the indoor unit in its packing or cover it Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them Insufficient insulation can cause condensation which can lead to moisture damage on the ceiling floor furniture and any other valuables eBe sure to perform air tightness test by pressur
62. r cable 342 D front 404 9 ur 95 1 1120 p right 863 connection ee 220 180 550 180 214 Rear side Rear side Explanatory marks A Opening for refrigerant gas pipe connection B Opening for refrigerant liquid pipe connection G B E C C Refrigerant pipe port 88 or 100 D Power cable port 50 E Power cable port oblong hole measuring 40x80 F Holes for hoisting slings G Opening for oil equalizing pipe connection gt 141 101 120 405 Dimensions of a refrigerant pipe connection port plan 185 80 5 An oil equalizing pipe must be connected only when an outdoor unit is used in a combined installation When a unit is used as a standalone installation do not connect it The positions of connections on a base 10 KX T 146 e A pipe can be laid through the front right bottom or rear of a unit as illustrated on the above drawings e In laying pipes on the installation site cut off the casing s half blank 88 or 9 100 that covers a hole for pipe penetration with nippers e When there is a danger that a small animal enters from the pipe port cover the port with appropriate blocking materials to be arranged on the user s part e Use an elbow to be arranged on the user s part to connect control valves to the piping e In anchoring piping on the installation site give 1 5m or a longer distance between an outdoor unit and an anchoring point
63. r leakage may occur GAUTION Please make sure that the operation valves gas liquid oil equalizing pipe for a combined installation only are full open before a test run Conducing a test run with any of them in a closed position can result in a compressor failure 10 KX T 146 Branching pipe set type Gas side liquid side Different diameter pipe joint HEAD8 371 1 HEAD8 540 2 INSTALLATION PROCEDUCE 1 Please select an appropriate branching pipe set model and a pipe size by consulting with the installation manual of the indoor unit or other relevant technical documents Attention DUse a pipe conforming to a pipe size specified for indoor unit connection for the section between an indoor unit and a branching pipe uUse a pipe conforming to a pipe size specified for outdoor unit connection for the section between an outdoor branching pipe and an outdoor unit 2 Cut a branching pipe set or a different diameter joint with a pipe cutter to make it fit for a selected pipe size before application Attention D In cutting pipes always use a pipe cutter Remove burrs from a cut end when you cut a pipe In doing so keep a cut end downward so that no chips or burrs may enter the pipe re Take utmost care so that no foreign matter such as dust or water may enter piping during installation work P Please cover all the open ends of piping until installation work is completed Particularly
64. r may occur when it is operated in a high humidity atmosphere 23 C or a higher dew point temperature In such a case apply an additional heat insulation material of 10 to 20 mm thick to dress an indoor unit body piping and drain pipes When the ambient dew point temperature becomes 28 C or higher or the relative humidity becomes 80 or higher add further 10 to 20 mm thick heat insulation material Wires for connecting indoor and outdoor units Exterior tape Band accessory Pipe cover accessory Gas piping Liquid piping insulation 5 Drainage e Where water drained from the outdoor unit may freeze connect the drain pipe using optional drain elbow and drain grommet 6 ELECTRICAL WIRING WORK Electrical installation work must be performed by an electrical installation service provider qualified by a power provider of the country Electrical installation work must be executed according to the technical standards and other regulations applicable to electrical installations in the country A Please install an earth leakage breaker without fail The installation of an earth leakage breaker is compulsory in order to prevent electric shocks or fire accidents Since this unit employs inverter control please use an impulse withstanding type to prevent an earth leakage breaker s false actuation Please note a Use only copper wires Do not use any supply cord lighter than one specified in parentheses for each
65. r to branch downward C Indoor units 224 and 280 can not be connected to the header O Gas side 3 Horizontal FD IG g Ne al i Floor surface Floor surface 7777777777 Floor surface ae gl s ee 9 L Floor surface 7777777777 Floor surface TITHI TT AF 7 Floor surface 4 2 Pipe connection position and pipe direction 1 Pipe connecting position and pipe outgoing direction Although this drawing illustrates an installation involving a 450 or smaller capacity unit an installation involving a 504 or a larger capacity unit should be arranged in the same manner as long as pipe connection points and directions are concerned except that the height of a unit is different Measurements in indicate those of a 504 or larger capacity unit 720 N 1350 S r TY i md HP Wi X iam AN ci B Ble E amp B Y i Drain pipe 7 segment 8 gt A inspection port ENSE Signal wire 8 C front C right C rear n terminal block HA mn FH m T ACE PA ip Oo de are Q0 bem Legs AV a d Terminal block E D left 80 for powe
66. result in a serious consequence such as death or major injury the instruction is grouped into AN Warnings to emphasize its importance However a failure to observe a safety instruction listed under can also result in a serious consequence depending on the circumstances Please observe all these instructions because they include important points concerning safety The meanings of Marks used here are as shown on the right Never do it under any circumstances 006 Always do it according to the instruction When you have completed installation work perform a test run and make sure that the installation is working properly Then explain the customer how to operate and how to take care of the air conditioner according to the user s manual Please ask the customer to keep this installation manual together with the user s manual This unit complies with EN61000 3 11 For outdoor unit EN61000 3 2 and EN61000 3 12 are not applicable as consent by the utility company or notification to the utility company is given before usage Z WARNING CAUTION installation must be carried out by the qualified installer If you install the system by yourself it may cause serious trouble such as water leaks electric shocks fire and personal injury as a result of a system malfunction install the system in full accordance with the instruction manual Incorrect installation may cause burst
67. rst branching and Allowable elevation difference head difference e Please avoid forming any trap AUF or bump JU in piping as they can cause fluid stagnation e Maximum length from an outdoor unit to the farthest indoor unit 160 m or less as actual pipe length 185 m or less as equivalent pipe length When an actual pipe length exceeds 90m however it is necessary to change the pipe size Please determine the main pipe size by consulting with the Main Selection Reference Table set out in Section 3 b e Total pipe length lt Select the total pipe length depending on the connectable capacity of indoor units so that it will fall within the following range iat A Outdoor unis capacity TA Max connectable capacity of indoor units 6 SZ 400 450 15096 3 504 960 140 SS 1010 1360 130 e CAUTION An installation not conforming to these restrictions can gt induce a com i i pressor failure which shall be excluded from 300m 510m 1000 m Total pipe length the scope of warranty Always observe the restrictions on the use of pipes in developing a system Main pipe length Me hh HH Hh HH HH 130 m or less Allowable pipe length from the first branching 90 m or less On indoor units with the capacity of 112 or higher however enlarge t
68. s personal injury water leaks electric shocks and fire else the original accessories and the specified components for installation If parts other than those prescribed by us are used It may cause fall of the unit water leaks electric shocks fire refrigerant leak substanard performance contri failure and personal injury When installing in small rooms take prevention measures not to exceed the density limit of refrigerant in the event of leakage accordance with 1505149 Consult the expert about prevention measures If the density of refrigerant exceeds the limit in the event of leakage lack of oxygen can occur which can cause serious accidents eventilate the working area well in the event of refrigerant leakage during installation If the refrigerant comes into contact with naked flames poisonous gas is produced After completed installation check that no refrigerant leaks from the system If refrigerant leaks into the room and comes into contact with an oven or other hot surface poisonous gas is produced lang up the unit at the specified points with ropes which can support the weight in lifting for portage And to avoid jolting out of alignment be sure to hang up the unit at 4 point support An improper manner of portage such as 3 point support can cause death or serious personal injury due to falling of the unit install the unit in a location with good support Unsuitable installation locations can cause the unit to fall and c
69. se a pipe conforming to the pipe size specified for outdoor unit connection Indoor unit connecting pipe size table Outdoor unit outlet pipe specifications Gas pipe Connection method Liquid pipe Connection method Oil equalizing tube Connection method 335 K 400 25 4 p 28 58 X t 1 0 450 504 9 52x t 0 8 560 28 58X t 1 0 Blazed 12 7X t 0 8 Flare an 615 680 Pipe sizes applicable to European installations are shown in parentheses Please use C1220T 1 2H for 19 05 or larger pipes 3 1 Please connect the master and slave units with an oil equalization pipe when they are used in a combined installation It is not required when a unit is used as a standalone installation Outdoor unit Flare b Main Outdoor unit side branching pipe Indoor unit side first branching pipe Section B in Figure 1 If the longest distance measured between the outdoor unit and the farthest indoor unit is 90m or longer actual length please change the main pipe size according to the table below Main pipe size normal Pipe size for an actual length of 90m or longer Gas pipe Liquid pipe Gas pipe Liquid pipe 400 25 4 28 58 X t 1 0 28 58 X t1 0 450 504 15 88 X t1 0 o31 8X t1 1 15 88 X t 1 0 560 28 58 X t1 0 628 58X t 1 0 615 680 735 800 850 900 960 1010 38 1 X t 1 35 1065 634 92 X t 1 2 1130 1180 1235 1300 1360 Please use C1220T 1 2H for 19 05 or larger pipes Pipe sizes
70. t hold down SW8 P11 Allocation of external input CnS1 P12 Allocation of external input CnS2 P13 Allocation of external input CnG1 P14 Allocation of external input CnG2 P15 Allocation of external input CnQ5 Master slave P16 Outdoor unit fan snow protection control ON time setting 30 sec at shipping 10 30 600 sec 1 Unit set shown in the above table refers to the master slave setting of units comprising a combined installation Master control mode setting required for the master unit only setting not required with the slave unit Master slave control mode setting required for both master and slave units 2 Control is switched when both the allocation of external input function P11 15 and SW are changed Example To use CnS1 for the input of forced cooling mode set P11 at 2 and SW3 7 at ON To use CnS2 for the input of forced cooling mode set P12 at 2 and SW3 7 at ON 3 To enable the 2 stage demand mode set J13 closed and allocation of external input function to 1 54 By changing the allocation of external input functions P11 15 on the 7 segment functions of external input terminals may be selected Inputting signals to external input terminals enable the following functions Setting value for allocation of external input function With external input terminals closed With external input terminals open 0 External operation input
71. t subject to external force e In fastening a screw of a terminal block use a correct size driver Fastening a screw of a terminal block with excessive force can break the screw e For the tightening torque of terminals refer to the list shown at right e When electrical installation work is completed make sure that all electrical components within the electrical component box are free of loose connector coupling or terminal connection 3 Outdoor unit power supply specifications 3 phase 380 415V i i Moulded case circuit breaker A Earth wire Model Fou Cable size for power Wire length A Earth leakage breaker source mm m Rated current Switch capacity Size mm Screw type 335 K 400 22 92 75 100 75A100mA less than 0 1 sec 5 5 M5 450 peres 22 92 75 100 75A100mA less than 0 1 sec 5 5 M5 re 504 22 92 75 100 75A100mA less than 0 1 sec 55 M5 560 50Hz 22 92 75 100 75A100mA less than 0 1 sec 5 5 M5 615 380V60Hz 22 92 75 100 75A100mA less than 0 1 sec 5 5 M5 680 22 92 75 100 75A100mA less than 0 1 sec 5 5 M5 Please note a The method of laying cables has been determined pursuant to the Japanese indoor wiring regulations JEAC8001 Please adapt it to the regulations in effect in each country b In the case of distributed separate power supply system the listed data represent those of an outdoor unit C For details please refer to the installation manual supplied with the indoor unit d Wire length in the table above is the value for
72. t such as inverters standby generators medical high frequency equipments and telecommunication equipments can affect the system and cause malfunctions and breakdowns The system can also affect medical equipment and telecommunication equipment and obstruct its function or cause jamming Do not install the outdoor unit in a location where insects and small animals can inhabit Insects and small animals can enter the electric parts and cause damage or fire Instruct the user to keep the surroundings clean eDo not use the base flame for outdoor unit which is corroded or damaged due to long periods of operation Using an old and damage base flame can cause the unit falling down and cause personal injury Do not install the unit in the locations listed below Locations where carbon fiber metal powder or any powder is floating Locations where any substances that can affect the unit such as sulphide gas chloride gas acid and alkaline can occur Vehicles and ships Locations where cosmetic or special sprays are often used Locations with direct exposure of oil mist and steam such as kitchen and machine plant Locations where any machines which generate high frequency harmonics are used Locations with salty atmospheres such as coastlines Locations with heavy snow If installed be sure to provide base flame and snow hood mentioned in the manual Locations where the unit is exposed to chimney smoke Locations at high altitude more than 1000m
73. the state that the unit is installed in place 2 Remove the blowout duct flange plate from the unit Keep the removed tapping screws to reuse later Location of tapping screws Hase plato to be removed lt 22 28 36 8 places 45 56 10 places Tapping screw size 4 mm dia x 8 mm length Blowout duct flange plate installed at shipping from factory 3 Install the optional blowout duct flange plate using the tapping screws removed at the step 2 above Take care not to damage the insulation when tightening the tapping screws Optional blowout duct flange plate Location of tapping screws to be tightened 22 28 36 8 places 45 56 10 places Reuse removed tapping screws 3 Caution and instruction for the duct work 1 Dimensions of the blowout duct flange of the kit are as shown below Connect the duct according to these dimensions Dimensions in the following table show the outside measurements of the flange Install the duct which has been procured at site at the outside of flange with care to prevent wind leakage Unit mm Duct procured at site g fuel aa E y I 22 28 36 162 732 Suit TT A 45 56 162 932 ps the unit side 2 Determine the length of duct by calculating the pressure loss taking into consideration component parts at the suction and blowout sides Total static pressure at the outside of unit should not exceed the figures shown in the following tabl
74. type below braided cord code designation 60245 IEC 51 if allowed in the relevant part 2 ordinary tough rubber sheathed cord code designation 60245 IEC 53 flat twin tinsel cord code designation 60227 IEC 41 ordinary polyvinyl chloride sheathed cord code designation 60227 IEC 53 Please do not use anything lighter than polychloroprene sheathed flexible cord cord designation 60245 IEC57 for supply cords of parts of appliances for outdoor use b Use separate power supplies for the indoor and outdoor units c A grounding wire must be connected before connecting the power cable Provide a grounding wire longer than the power cable d The power supplies for indoor units in the same system should turn on and off simultaneously e Ground the unit Do not connect the grounding wire to a gas pipe water pipe lightning rod or telephone grounding wire If improperly grounded an electric shock or malfunction may result Never connect the grounding wire to a gas pipe because if gas leaks it could cause explosion or ignition f The installation of an impulse withstanding type earth leakage breaker is necessary A failure to install an earth leakage breaker can result in an accident such as an electric shock or a fire Do not turn on the power until the electrical work is completed Be sure to turn off the power when servicing g Please do not use a condensive capacitor for power factor improvement under any circumstances It does not improv
75. using the following formula and put down the amount of refrigerant added on the refrigerant charge volume recording plate provided on the back the front panel Adding additional refrigerant Charge additional refrigerant according to the size and length of the liquid piping and unit capacity Determine additional charge volume by rounding to the nearest 0 1 kg Additional fill quantity kg S P I S standard additional refrigerant quantity kg Outdoor unit S kg Outdoor unit S kg Outdoor unit S kg 400 2 0 735 3 0 1065 127 450 3 9 800 4 0 1130 14 0 504 5 7 850 5 9 1180 15 2 560 7 0 900 7 8 1235 16 4 615 8 2 960 9 6 1300 17 8 680 9 6 1010 11 4 1360 19 2 P Additional refrigerant quantity for piping kg P L1x0 37 L2x0 26 L3x0 18 L4x0 12 L5x0 059 L6x0 022 L1 22 22 total length m L2 19 05 total length m L3 15 88 total length m L4 412 7 total length m L5 9 52 total length m L6 6 35 total length m Refrigerant liquid pipe size 22 22 19 05 15 88 912 7 9 52 6 35 Remarks Additional fill quantity kg m 0 37 0 26 0 18 0 12 0 059 0 022 I Additional refrigerant quantity for indoor units kg If the total indoor units capacity is larger than 1 3 times of outdoor unit capacity then calculate the additional refrigerant quantity for indoor units D Total indoor units capacity outdoor unit capacity
76. water leaks electric shocks or fire Earth leakage breaker must be installed If the earth leakage breaker is not installed it can cause fire or electric shocks Do not use any materials other than a fuse with the correct rating in the location where fuses are to be used Connecting the circuit with copper wire or other metal thread can cause unit failure and fire eDo not install the unit near the location where leakage of combustible gases can occur If leaked gases accumulate around the unit it can cause fire eDo not install the unit where corrosive gas such as sulfurous acid gas etc or combustible gas such as thinner and petroleum gases can accumulate or collect or where volatile combustible substances are handled Corrosive gas can cause corrosion of heat exchanger breakage of plastic parts and etc And combustible gas can cause fire Secure a space for installation inspection and maintenance specified in the manual Insufficient space can result in accident such as personal injury due to falling from the installation place When the outdoor unit is installed on a roof or a high place provide permanent ladders and handrails along the access route and fences and handrails around the outdoor unit If safety facilities are not provided it can cause personal injury due to falling from the installation place eDo not install nor use the system close to the equipment that generates electromagnetic fields or high frequency harmonics Equipmen

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