Daikin RXYQ48PYL — guidelines for Preparing Control Circuit Diagrams in System Design [24/100]

Содержание

• Service p.1
• Sien34 705 p.1
• R 410a heat pump 50hz 60hz cooling only 50hz p.1
• Manual p.1
• Design installation testing instruction p.1
• Test operation 2 p.3
• R 410a series p.3
• Product outline p.3
• Points to bear in mind at the system design 2 p.3
• Part 1 general information p.3
• Installation 9 p.3
• Hand over to customer 27 p.3
• Caution for refrigerant leaks 24 p.3
• Appendix 28 p.3
• Part 3 operation manual 09 p.4
• Part 2 installation manual 13 p.4
• Heat pump cooling only 50hz rx y q5 54p 310 1 safety cautions 311 1 specifications 312 1 what to do before operation 312 1 remote control and cool heat selector name and function of each switch and display refer to figure 2 and 3 313 1 operation range 313 1 operation procedure 313 1 optimum operation 317 1 seasonal maintenance 317 1 following symptoms are not air conditioner troubles 317 1 0 trouble shooting 319 2 heat pump 60hz rxyq5 54p 321 2 safety cautions 322 2 specifications 323 2 what to do before operation 323 2 remote control and cool heat selector name and function of p.4
• Heat pump cooling only 50hz rx y q5 54p 14 p.4
• Heat pump 60hz rxyq5 54p 61 p.4
• Index i p.5
• Drawings flow charts iii p.5
• Part 4 precautions for new refrigerant r 410a 33 p.5
• Preface p.6
• Test operation 2 p.7
• Product outline p.7
• Points to bear in mind at the system design 2 p.7
• Part 1 general information p.7
• Installation 9 p.7
• Hand over to customer 27 p.7
• Caution for refrigerant leaks 24 p.7
• Appendix 28 p.7
• Model names of indoor outdoor units p.8
• Indoor units p.8
• High cop series energy saving series p.8
• Heat pump rx y q 5p 8p 10p 12p 14p 16p 18p 20p 22p y1 e yl e 24p 26p 28p 30p 32p 34p 36p 38p 40p 42p 44p 46p 48p 50p 52p 54p p.8
• Heat pump rx y q 16ph 18ph 24ph 26ph 28ph 30ph 32ph 34ph 36ph y1 e yl e 38ph 40ph 42ph 44ph 46ph 48ph 50ph p.8
• General information p.8
• Series model name power supply p.8
• Product outline sien34 705 p.8
• Product outline p.8
• Outdoor units normal series p.8
• General information 3 p.9
• Floor standing type p.9
• External appearance p.9
• Concealed floor standing type p.9
• Ceiling suspended type p.9
• Ceiling suspended cassette type connection unit series p.9
• Ceiling mounted duct type p.9
• Ceiling mounted cassette type multi flow p.9
• Ceiling mounted cassette type double flow p.9
• Ceiling mounted cassette corner type p.9
• Ceiling mounted built in type p.9
• 600 ceiling mounted cassette type multi flow p.9
• Wall mounted type p.9
• Slim ceiling mounted duct type p.9
• Sien34 705 product outline p.9
• Outdoor air processing unit p.9
• Indoor units heat pump 50hz 60hz cooling only 50hz p.9
• Outdoor units heat pump 50hz 60hz cooling only 50hz p.10
• Combination of outdoor units p.12
• Use the above tables to determine the capacities of indoor units to be connected make sure the total capacity of indoor units connected to each outdoor unit is within the specified value kw the total capacity of connected indoor units must be within a range of 50 to 130 of the rated capacity of the outdoor unit in some models it is not possible to connect the maximum number of connectable indoor units select models so the total capacity of connected indoor units conforms to the specification p.14
• Product outline sien34 705 p.14
• Note fxdq has following 2 series as shown below fxdq p n a vet without drain pump p.14
• New refrigerant model code p20 type p25 type p32 type p40 type p50 type p63 type p80 type p100 type p125 type p200 type p250 type selecting model capacity 2 kw 2 kw 3 kw 4 kw 5 kw 7 kw 9 kw 11 kw 14 kw 22 kw 28 kw equivalent output 0 hp 1hp p.14
• Indoor unit capacity p.14
• Hp 2 hp 2 hp 3 hp 4hp 5hp 8hp 10hp p.14
• General information p.14
• Fxdq p n a ve with drain pump fxzq only for eu australia p.14
• Connectable indoor unit p.14
• Differences from conventional models p.15
• Vrv iii heat pump 50hz 60hz cooling only 50hz p.16
• Product outline sien34 705 p.16
• Model selection p.16
• General information p.16
• Connectable indoor units number and capacity normal series p.16
• Sien34 705 product outline p.17
• High cop series energy saving series p.17
• General information 11 p.17
• Points to bear in mind at the system design p.18
• Points relating to the performance of the air conditioning units p.18
• The installation is of vital importance p.20
• The analysis of major installation problems experienced is shown below p.20
• Points to bear in mind at the system design sien34 705 p.20
• How these installation problems affect an equipment are shown below p.20
• General information p.20
• Striking a balance between system installation and general construction work comprehensive flow chart p.21
• Note 1 the division of the work should be thoroughly clarified this applies particularly to work relating to the connection of control wiring fitting of remote control and central control panel boundary work on areas such as connection of drain piping and humidification supply piping inspection and foundation 2 keep a constant check on the progress of the construction work to avoid deviations from the air conditioning work schedule 3 for sleeve and insert work the positions of ceiling girders should be confirmed and sleeve and insert requirement hole diameters positioning and numbers decided this is particularly important in the case of sleeves for drain piping p.21
• The following points should be borne in mind when preparing the contract drawings from the original drawings and the execution drawings the contract drawings for the air conditioning system are blueprints for the performance of the necessary work which are drawn up on the basis of the original drawings in such a way that a working balance is achieved between the specific requirements of each individual aspect of the work p.22
• The following is a list of the main points to be considered when preparing contract drawings for the iii system and should be used as a reference during this stage of the work p.22
• Points to bear in mind when preparing the contract drawings p.22
• Objectives include the drawings should be easily comprehensible to those carrying out the work the contents of the drawings should not be subject to subsequent alteration p.22
• Contract drawing p.22
• At the contract drawing stage the following points are critical p.22
• Step 1 compiling a system list p.23
• Sien34 705 points to bear in mind at the system design p.23
• Note with the vrv iii r 410a heat pump cooling only series unit no is determined through automatic addressing therefore readout unit nos after activating the power p.23
• Mark each outdoor unit with a code 2 add field settings and data for outdoor units and outdoor unit no if using sequential start 3 add the model number of each indoor unit connected to each refrigerant circuit 4 assign each indoor unit a code 5 fill in the location of each indoor unit 6 group indoor units controlled by one or two remote controls group or individual control 7 assign central group nos if using centralized control 8 add field settings and optional equipment for indoor units 9 add unit no if making separate field settings for each indoor unit under group control p.23
• Main considerations in preparation of control circuit diagrams p.23
• In addition to the design of the appropriate this system configuration it is also essential that the control system be made amply clear if the system is designed and installed without a clear comprehensive plan then problems are inevitably going to occur during the test run servicing too will become much more time consuming than necessary however if control circuit diagrams are prepared along with the contract drawings in order to make the total system clearly visible then the essential points relating to the electrical connections will be easily understood the test run will go off without a hitch and the whole system will be rendered fully effective p.23
• General information 17 p.23
• For details on field settings and centralized control group no refer to the installation manual and system reference materials p.23
• Step 2 preparation of the control circuit diagrams p.24
• Example control circuit diagram p.24
• The above list indicates the order in which the individual work operations are normally carried out but this order may be varied where local conditions warrant such a change p.25
• Step by step installation procedure p.25
• Sien34 705 installation p.25
• Installation p.25
• General information 19 p.25
• Work involved in individual operations and points to be borne in mind p.26
• Sleeve and insert work p.26
• Positioning the insert p.26
• Positioning of the pipe holes p.26
• Important points 1 the suspension bolts must be strong enough to support the weight of the indoor unit 2 optional features must be added to the indoor unit prior to installation 3 the model name should be checked prior to installation 4 take care to align the main unit correctly bearing in mind piping layout and direction of blow out 5 leave sufficient space for servicing to be carried out 6 make inspection holes for model which need them 7 fit the unit to ensure proper drainage p.27
• Height take care to account for final ceiling facing surface level 2 level level fitting is essential within 1 degree of horizontal 3 direction the unit must be fitted in line with the ultimately visible ceiling joints p.27
• General information 21 p.27
• Example ceiling mounted cassette type fxcq63m p.27
• Essential points when installing an indoor unit p.27
• Sien34 705 installation p.27
• Positioning p.27
• Operational steps p.27
• Installation of indoor unit p.27
• The 3 principles of refrigerant piping must be strictly observed p.28
• The 3 principles of refrigerant piping p.28
• Refrigerant pipe work p.28
• Operational steps p.28
• Installation sien34 705 p.28
• General information p.28
• Method for replacing nitrogen brazing p.29
• Covering of refrigerant pipes p.30
• Refrigerant pipe flushing p.31
• A refrigerant piping selection of piping material 1 foreign materials inside pipes including oils for fabrication must be 30mg 10m or less 2 use the following material specification for refrigerant pipping construction material phosphoric acid deoxidized seamless copper for refrigerant size determine the proper size referring to chapter example of connection the wall thickness of the refrigerant piping should comply with relevant local and national regulations for r 410a the design pressure is 4 mpa 40 kgf c p.32
• 3 make sure to use the particular branches of piping that have been selected referring to chapter example of connection 4 the piping minimum thickness and material the min thickness of the pipes shows the requirements of japanese high pressure gas control low as of jan 2003 and the temper grade p.32
• 1 2h shows the material type of jis h 3300 the thickness and material should comply with relevant local and national regulations for the design pressure 4 mpa 40bar select the wall thickness in accordance with relevant local and national regulations p.32
• The nature and amount of the extraneous material inside the pipe can be checked during flushing by placing a rag lightly over the end of the pipe in the unlikely case that even a small quantity of moisture is found then the inside of the pipe should be dried out thoroughly action 1 flush the inside of the pipe with nitrogen gas until such time as the moisture disappears 2 carry out a thorough vacuum drying operation see page 39 1 close the main valve on the nitrogen cylinder 2 repeat the above operation for unit b 3 when the liquid pipe operations have been completed then do the same with the gas pipes p.32
• Installation sien34 705 p.32
• General information p.32
• Choice of materials for refrigerant piping p.32
• Sien34 705 installation p.33
• Refnet joint p.33
• Refnet header p.33
• Refer detail of daikin refnet joint and refnet header on page 161 p.33
• General information 27 p.33
• Example r 410a rxyq p series p.33
• Equivalent piping length of joints and header reference p.33
• Branches p.33
• B brazed joints and special branches 1 general use l bend joint socket joint t joint etc joints must meet the requirements of the relevant jis standard size materials thickness etc 2 special branches the daikin outdoor unit multi connection kit refnet joint refnet header or reducing socket should be used p.33
• C brazing the multi system requires only copper copper jointing and the jointing method is explained below the use of hard solder is essential p.34
• Brazing rod diameter φ p.34
• 200 225 250 315 400 450 500 p.34
• The r 410a heat pump cooling only rx y q p series uses a wide range of piping sizes you should therefore be careful when selecting the nozzle tip if a small nozzle tip is used for brazing piping of large diameters such as φ 38 and φ 44 brazing flow becomes poor p.34
• Table 1 correlation of nozzle tip and size of refrigeration piping p.34
• Piping size p.34
• Nozzle tip no p.34
• Note the values in the table above are for type b torch french p.34
• Installation sien34 705 p.34
• Hard solder p.34
• General information p.34
• Brazing p.35
• Mm 72mm 1 0 mm each p.36
• Installation sien34 705 p.36
• General information p.36
• Flare gauge adapter corresponding to the new rank when using the later use a flare gauge to take out the pipe from the gauge bar adjust it and then carry out the flare processing p.36
• Flare connection p.36
• D coat the inner and outer surface of the flare with refrigerator oil ester or ether oil this ensures that the flare nut passes smoothly preventing the pipe from twisting do not use suniso 4gs oil p.36
• A stiffened pipe must always be annealed at least once prior to the flaring work b a pipe cutter must be used to cut the pipe a large pipe cutter must be used where the pipe has a large diameter when cutting a pipe which is too big for the pipe cutter a metal saw may be used but care must be taken to ensure that the debris from sawing does not get into the pipe c set the flaring tool to make sure the flare size remains within the prescribed limits p.36
• Size from the dice surface to the copper tip in mm p.36
• New rank compatible flare tool compared to previous refrigerants the components of a hfc refrigerant is small r 410a also has a higher pressure than other refrigerants therefore in order to strengthen the intensity of the form and size of the flare section used for r 410a class 2 apparatus unlike the specification of the conventional refrigerants it was set up with different standards when carrying out flare processing use a new rank compatible flare tool or a conventional flare tool p.36
• Standard torques for tightening flare nut p.37
• Sien34 705 installation p.37
• Important points 1 burrs should be carefully removed 2 2 spanners should be used to grip the flare nuts 3 the flare nut must be inserted before starting the flaring operation 4 the appropriate amount of torque should be used to tighten the flare nut p.37
• General information 31 p.37
• Check that there is no superficial damage to the surface of the flare p.37
• Flaring procedure p.38
• Tighten the flare but with proper torque p.39
• Not recommendable but in case of emergency p.39
• Installation sien34 705 p.40
• Important points 1 only clean refrigeration oil should be used to coat the flange i e free from dirt or water 2 the correct amount of torque should be applied when tightening the flange bolts p.40
• General information p.40
• Flange connection p.40
• C tighten the bolts in opposite corners first to ensure that the connection is true p.40
• A the flange sheet surface should be clean and undamaged clean any dirt away with a cloth and check that there has been no damage b coat the flange sheet surface with refrigeration oil ester or ether oil and then insert the packing do not use suniso oil p.40
• Standard torques for tightening screws and bolts p.40
• Iso hexagonal bolt p.40
• Thermal insulation work refrigerant piping p.41
• Materials p.41
• Essential points of thermal insulation p.41
• Essential points of testing maintaining pressure over a period p.42
• Air tight test p.42
• Setup of air tight test referring to following figure connect an nitrogen tank refrigerant tank and a vacuum pump to the outdoor unit the shutoff valve and valve a c in following figure should be open or closed as shown in the table below p.44
• Installation sien34 705 p.44
• Important points 1 where the lengths of piping involved are particularly long then the air tight test should be carried out block by block example 1 indoor side 2 indoor side vertical pipes 3 indoor side vertical pipes outdoor side p.44
• General information p.44
• Checking for leaks p.44
• Check 2 when searching for a minor leak or when there has been a fall in pressure while the system has been fully pressurized but the source of the leak cannot be traced 1 release the nitrogen until the pressure reaches 0 mpa 2 increase pressure to 1 mpa using gaseous flon gas r 410a nitrogen and flon gas mixed 3 search for the source of the leak using a leak detector 4 if the source of the leak still cannot be traced then repressurize with nitrogen up to 4 0mpa and check again the pressure must not be increased to more than 4 0mpa p.44
• Check 1 where pressure falls while carrying out steps 1 to 3 described on previous page check by ear listen for the sound of a major leak check by hand check for leak by feeling around jointed sections with hand soap and water check snoop bubbles will reveal the presence of a leak p.44
• The evacuation of air conditioner piping provides the following effects 1 vacuum drying 2 removes air and nitrogen used in air tightness test from the inside of pipes therefore it is necessary to ensure that the both purposes have been achieved in the vacuum drying operation p.45
• Key points lower the degree of vacuum to below 755mmhg p.45
• What is vacuum drying p.45
• Vacuum drying is the use of a vacuum pump to vaporize gasify the moisture liquid inside the pipes and expel it leaving the pipes completely dry inside at 1 atm 760 mmhg the boiling point evaporating temperature of water is 100 c but if a vacuum is created inside the pipes using a vacuum pump then the boiling point is rapidly reduced as the degree of the vacuum is increased if the boiling point is reduced to a level below that of the ambient temperature then the moisture in the pipes will evaporate p.45
• Vacuum drying p.45
• Choosing a vacuum pump p.46
• When selecting a vacuum you should select one which is capable of achieving 0 torr of ultimate vacuum p.47
• Vacuum pump maintenance because of their nature most vacuum pumps contain large amounts of oil which lubricates bearings etc and functions to enhance airtightness of pistons when using a vacuum pump to discharge air from refrigerant piping moisture in the air tends to get mixed in with the oil you must therefore change oil periodically and make sure the proper oil level is maintained perform periodic inspections in accordance with the operating instructions p.47
• Sien34 705 installation p.47
• General information 41 p.47
• Degree of vacuum measurement an extremely accurate vacuum gauge is required to test degree of vacuum you cannot accurately measure degree of vacuum with the compound gauge on the gauge manifold a pirani vacuum gauge is required to measure degree of vacuum accurately because pirani gauges are very sensitive and require extreme care when using they are not very suitable for use in the field you should therefore use the pirani gauge to calibrate the attached vacuum gauge on the gauge manifold and the degree of vacuum of the vacuum pump p.47
• Degree of vacuum is expressed in torr micron mmhg and pascal pa the units correlate as follows p.47
• 2 degree of vacuum ultimate vacuum varies largely according to use of the vacuum pump vacuum pumps used for vacuum forming cannot be used for vacuum drying a vacuum pump with a high degree of vacuum is required p.47
• Reference types of vacuum pump with respective maximum degree of vacuum p.48
• Many handy pumps fall into this category p.48
• Installation sien34 705 p.48
• General information p.48
• Calibration method 1 connect a pirani vacuum gauge and the gauge manifold vacuum gauge 0 760 mmhg to the vacuum pump at the same time and run the pump for about 3 minutes 2 make sure the reading of the pirani vacuum gauge is 5 torr 667 pa or less the reading of conventional vacuum pumps lowers to about 0 torr if the reading is not 5 torr or less check the vacuum pump oil oil is low in many cases 3 check the attached gauge on the gauge manifold adjust the gauge if the reading is not exactly correct 4 adjust the gauge manifold valve so that the pirani vacuum gauge reads 5 torr 5 mark the position indicated by the gauge manifold gauge with an oil based ink pen 6 use the mark of the gauge manifold as a target when vacuuming in the field p.48
• Vacuum drying procedure p.49
• Refrigerant charging instructions p.51
• Additional charge of refrigerant at installation time p.51
• Drain trap p.53
• Drain pipe work indoor p.53
• Drain pipe gradient and support p.53
• Use of an auxiliary drain hose flexible p.54
• The pipework should be kept as short as possible and the number of indoor units per group kept to a minimum p.54
• It is standard work practice to make connections to the main pipe from above the pipe down from the combination should be as large as possible p.54
• Installation sien34 705 p.54
• Important points 1 the drain pipe should be at least equal in size to that of the indoor unit 2 the drain pipe is thermally insulated to prevent the formation of condensation inside the pipe 3 the drain up mechanism should be fitted before the indoor unit is installed and when the electricity has been connected some water should be added to the drain pan and the drain pump checked to see that it is functioning correctly 4 all connections should be secure special care is needed with pvc pipe the use of a colored adhesive with pvc pipes will help you to remember to connect them up p.54
• If a drain pan made of polystyrene foam is used then an auxiliary drain hose flexible is also essential a flexible drain hose permits the drain socket and drain pipe to be connected without difficulty and prevents any undue strain being placed on the drain pan p.54
• Grouped drain piping p.54
• General information p.54
• Drain piping for each model p.55
• Ceiling mounted cassette type fxcq m double flow p.55
• Sien34 705 installation p.55
• Select piping diameter from the below table in accordance with the amount of condensation drained by all units with a common drain pipe consider 2 l hr of drainage for every 1 hp for example drainage from 3 units running at 2 hp and 2 units running at 3 hp is calculated as follows 2 l hr 2 hp 3 units 2 l hr 3 hp 2 units 24 l hr p.55
• Relationship between riser diameter and allowable drainage for extended ventilation system p.55
• Relationship between horizontal pipe diameter and allowable drainage for extended ventilation system p.55
• Piping diameter for grouped drain pipes p.55
• Notes calculations have been made with water area inside the pipe as 10 allowable flow rate figures below the decimal have been discarded use vp30 or larger pipe after the convergence point p.55
• Notes allowed flow rate figures below the decimal have been discarded use vp30 or larger pipe in risers use the same drain pipe for the humidifier as the indoor unit p.55
• General information 49 p.55
• Drain pump kit p.55
• Drain piping work rig the drain pipe as shown below and take measures against condensation improperly rigged piping could lead to leaks and eventually wet furniture and belongings p.55
• Precautions for drain raising piping install the drain raising pipes at a height of less than 310 mm install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit p.56
• Installation sien34 705 p.56
• If converging multiple drain pipes install according to the procedure shown below p.56
• General information p.56
• Caution setting the unit at an angle opposite to the drain piping might cause leaks p.56
• 1 carry out the drain piping the diameter of the drain pipe should be greater than or equal to the diameter of the connecting pipe vinyl tube pipe size 25 mm outer dimension 32 mm keep the drain pipe short and sloping downwards at a gradient of at least 1 100 to prevent air pockets from forming if the drain hose cannot be sufficiently set on a slope execute the drain raising piping to keep the drain hose from sagging space hanging wires every 1 to 1 m p.56
• Use the attached drain hose and clamp metal insert the drain hose into the drain socket up to the white tape tighten the clamp until the screw head is less than 4mm from the hose wrap the attached sealing pad over the clamp and drain hose to insulate insulate the drain hose inside the building p.56
• Select converging drain pipes whose gauge is suitable for the operating capacity of the unit p.56
• Ceiling mounted cassette type fxfq m multi flow p.58
• Sien34 705 installation p.59
• Select converging drain pipes whose gauge is suitable for the operating capacity of the unit p.59
• Note to ensure no excessive pressure is applied to the included drain hose 1 do not bend or twist when installing this may cause leakage if converging multiple drain pipes install according to the procedure shown below p.59
• Install the drain raising pipes at a height of less than 550 mm install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit p.59
• General information 53 p.59
• Installation sien34 705 p.60
• General information p.60
• Caution drain piping connections do not connect the drain piping directly to sewage pipes that smell of ammonia the ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger keep in mind that it will become the cause of getting drain pipe blocked it water collects on drain pipe p.60
• Drain piping work p.61
• Ceiling mounted cassette corner type fxkq ma p.61
• General information p.62
• Caution drain piping connections do not connect the drain piping directly to sewage pipes that smell of ammonia the ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger keep in mind that it will become the cause of getting drain pipe blocked if water collects on drain pipe p.62
• 2 after piping work is finished check drainage flows smoothly open the inspection opening add approximately 1liter of water slowly into the drain pan and check drainage flow p.62
• Note use the drain outlet for maintenance to drain water from the drain pan p.62
• Installation sien34 705 p.62
• Slim ceiling mounted duct type fxdq p.63
• No good good p.65
• Ceiling mounted built in type fxsq m p.65
• Ceiling mounted duct type fxmq ma p.67
• Sien34 705 installation p.69
• General information 63 p.69
• Ceiling suspended type fxhq ma p.69
• Wall mounted type fxaq ma p.71
• Sien34 705 installation p.71
• General information 65 p.71
• Drain piping connections do not connect the drain piping directly to sewage pipes that smell of ammonia the ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger keep in mind that it will become the cause of getting drain pipe blocked if water collects on drain pipe p.71
• Caution p.71
• Floor standing concealed floor standing type fxlq ma fxnq ma p.72
• Ceiling suspended cassette type fxuq ma p.73
• Outdoor air processing unit fxmq mf p.76
• Electrical work p.77
• Control wiring p.77
• Power supply cabling of main power supply p.78
• Taking account of noise and vibration p.80
• Duct work indoor p.80
• If the electric wave of am broadcasting is particularly weak keep distances of 3m or more if the electric wave of am broadcasting is particularly weak keep distances of 3m or more and use conduit tubes for power and transmission lines 2 in heavy snowfall areas select an installation site where snow will not affect operation of the unit 3 if condensate may drip on downstairs walkway depending on the floor condition take a measure such as the installation of central drain pan kit sold separately 4 the refrigerant r 410a itself is nontoxic nonflammable and is safe if the refrigerant should leak however its concentration may exceed the allowable limit depending on room size due to this it could be necessary to take measures against leakage refer to the chapter caution for refrigerant leaks p.81
• This unit both indoor and outdoor is suitable for installation in a commercial and light industrial environment if installed as a household appliance it could cause electromagnetic interference the vrv outdoor units should be installed in a location that meets the following requirements 1 the foundation is strong enough to support the weight of the unit and the floor is flat to prevent vibration and noise generation 2 the space around the unit is adequate for servicing and the minimum space for air inlet and air outlet is available refer to below figure and choose one of both possibilities 3 there is no danger of fire due to leakage of inflammable gas 4 ensure that water cannot cause any damage to the location in case it drips out the unit e g in case of a blocked drain pipe 5 the piping length between the outdoor unit and the indoor unit may not exceed the allowable piping length see example of connection 6 select the location of the unit in such a way that neither the discharged air p.81
• Sien34 705 installation p.81
• Selection of location p.81
• Personal computer or radio p.81
• No limit to wall height no limit to wall height p.81
• Indoor unit p.81
• General information 75 p.81
• Caution 1 an inverter air conditioner may cause electronic noise generated from am broadcasting examine where to install the main air conditioner and electric wires keeping proper distances away from stereo equipment personal computers etc p.81
• Branch switch overcurrent breaker p.81
• Service space p.82
• Inspecting and handling the unit p.83
• Operational steps p.84
• Notes 1 the proportions of cement sand gravel for the concrete shall be 1 2 4 and ten reinforcement bars that their diameter are 10mm approx 300mm intervals shall be placed 2 the surface shall be finished with mortar the corner edges shall be chamfered 3 when the foundation is built on a concrete floor rubble is not necessary however the surface of the section on which the foundation is built shall have rough finish 4 a drain ditch shall be made around the foundation to thoroughly drain water from the equipment installation area 5 when installing the equipment on a roof the floor strength shall be checked and water proofing measures shall be taken 6 y groove unnecessary for 5hp models 7 when selecting the piping from the bottom provide the height 200mm or more from a base p.84
• Installation sien34 705 p.84
• Installation of outdoor unit p.84
• General information p.84
• Foundation of units p.84
• Unpacking and placing the unit p.85
• Sien34 705 installation p.85
• Notes 1 when installing on a roof make sure the roof floor is strong enough and be sure to water proof all work 2 make sure the area around the machine drains properly by setting up drainage grooves around the foundation drain water is sometimes discharged from the outdoor unit when it is running 3 for anti corrosion type use nuts with resin washers if the paint on nut connections comes off the anti corrosion effect may decrease p.85
• Make sure the unit is installed level on a sufficiently strong base to prevent vibration and noise secure the unit to its base using foundation bolts use four commercially available m12 type foundation bolts nuts and washers the foundation bolts should be inserted 20 mm make sure the base under the unit extended more than 765mm behind the unit the height of the base should be at least 150mm from the floor the unit must be installed on a solid longitudinal foundation steelbeam frame or concrete as indicated in figure p.85
• General information 79 p.85
• Bolt pitch p.85
• Do not use stands to support the corners p.86
• Caution caution label p.86
• To in s t a ller s p.86
• Warning caution to electric shock p.87
• To service person p.87
• To all handlers p.87
• For the location of the el compo box and the service port see as shown below on the right p.87
• For removing the front panel lift the panel a little p.87
• Check the system status on led h2p on the pc board a1p from inspection door on the el compo box cover led display shows turning off normal turning on abnormal flashing under preparation for multi system check the pc board of the master unit the master unit is the outdoor unit connected to the transmission wiring to the indoor units p.87
• Caution for removing and installing the el compo box cover p.87
• Beware the fan running when inspect do not touch the charged parts when inspect p.87
• And pull the panel towards you p.87
• Test operation p.88
• Procedure and outline p.88
• Check work prior to turn power supply on p.88
• Check for normal operation p.89
• Before starting the normal operation after the completion of check operations make sure indoor and outdoor units normally operate p.89
• Be sure to turn the power on 6 hours before starting operation to protect compressors to power on clankcase heater p.89
• Turn power on p.89
• Turn outdoor unit and indoor unit power on p.89
• The master unit is the outdoor unit to which the transmission wiring for the indoor units is conncted the other outdoor units are slave units p.89
• The check operations shown below will be automatically initiated check for erroneous wirings check for failure to open stop valves check for excessive refrigerant refilling automatic judgment of piping length p.89
• Sien34 705 test operation p.89
• Make field settings with outdoor unit pc board p.89
• Make field settings if needed for the setting procedure refer to information in 4 field setting from outdoor unit on page 101 onward for the outdoor multi system make field settings with the master unit field settings made with the slave unit will be all invalid p.89
• General information 83 p.89
• Conduct check operations p.89
• Check to be sure the transmission is normal the transmission is normal if the leds display conditions as shown in table below p.89
• Check the led display of the outdoor unit pc board p.89
• Step1 make the onsite setting as needed using the dip switches on the outdoor unit pc board a1p with the power off see below instruction note1 step2 close the el compo box lid and all front panels except as the side of the el compo box and turn on the power to the outdoor unit and all connected indoor units be sure to turn the power on at least 6 hours before operation in order to have power running to the crank case heater step3 check the led display on the outdoor unit pc board a1p is as shown in the table below and transmission is normal p.90
• Note1 onsite settings with the power off if the cool heat selector was connected to the outdoor unit set the dip switch ds1 on the outdoor unit pc board a1p to on it is set to off when shipped from the factory for the position of the dip switch ds1 see the service precautions label see at right which is attached to the el compo box lid p.90
• How to distinguish the master unit sub unit 1 and sub unit 2 in the multi system p.90
• Check operation procedure p.90
• Check operation p.90
• Step4 make the onsite settings as needed using the push button bs1 bs5 on the outdoor unit pc board a1p with the power on see 4 field setting from outdoor unit step5 perform the check operation following the check operation method of the service precautions label on the el compo box lid the system operation for about 40 minutes and automatically stops the check operation if the malfunction code is not displayed in the remote control after the system stop check operation is completed normal operation will be possible after 5 minutes if the malfunction code is displayed in the remote control correct the malfunction following remote control displays malfunction code and perform the check operation again p.90
• Remote control displays malfunction code p.91
• If any malfunction codes other than the above are displayed check the service manual for how to respond p.91
• When turning on power the second time and subsequent p.92
• When turning on power first time p.92
• When an indoor unit or outdoor unit has been added or indoor or outdoor unit pc board has been changed p.92
• The unit cannot be run for up to 12 minutes to automatically set the master power and address indoor outdoor address etc status p.92
• Tap the reset button on the outdoor unit pc board operation becomes possible for about 2 minutes if you do not push the reset button the unit cannot be run for up to 10 minutes to automatically set master power status p.92
• Operation when power is turned on p.92
• Caution when the 400 volt power supply is applyed to n phase by mistake replace inverter p c b a2p and control transformer t1r t2r in switch box together p.92
• Be sure to push and hold the reset button for 5 seconds if not the addition cannot be recognized in this case the unit cannot be run for up to 12 minutes to automatically set the address indoor outdoor address etc status p.92
• Outdoor unit pc board p.93
• 4 local setting switch used to make field settings p.93
• 3 mode setting switchused to change mode p.93
• 2 set mode display led leds display mode according to the setting p.93
• 1 microcomputer normal monitor this monitor blinks while in normal operation and turns on or off when a malfunction occurs p.93
• Outdoor unit pc board layout p.93
• Unit no p.94
• Second code no p.94
• Mode no p.94
• First code no p.94
• Field setting from remote control p.94
• Field setting p.94
• Field set mode p.94
• Second code no first code no p.95
• Mode no p.95
• Infrared remote control indoor unit p.95
• Field set mode p.95
• Simplified remote control p.96
• Setting contents and code no vrv indoor unit p.97
• Notes 1 settings are made simultaneously for the entire group however if you select the mode no inside parentheses you can also set by each individual unit setting changes however cannot be checked except in the individual mode for those in parentheses 2 the mode numbers inside parentheses cannot be used by infrared remote controls so they cannot be set individually setting changes also cannot be checked 3 marked are factory set 4 do not make settings other than those described above nothing is displayed for functions the indoor unit is not equipped with 5 88 may be displayed to indicate the remote control is resetting when returning to the normal mode 6 if the setting mode to equipped heat reclaim ventilation fan conducts the fan residual operation by linking to indoor unit p.97
• General information 91 p.97
• Sien34 705 test operation p.97
• Test operation sien34 705 p.98
• General information p.98
• Applicable range of field setting p.98
• 1 static pressure selection p.98
• When a ultra long life filter is installed the filter sign timer setting must be changed p.99
• Ultra long life filter sign setting p.99
• This input is used for on off operation and protection device input from the outside the input is performed from the t1 t1 terminal of the operation terminal block x1a in the electric component box p.99
• Setting table p.99
• If switching the filter sign on time set as given in the table below set time p.99
• Filter sign setting p.99
• Fan speed changeover when thermostat is off p.99
• External on off input p.99
• Detailed explanation of setting modes p.99
• By setting to set fan speed you can switch the fan speed to the set fan speed when the heating thermostat is off since there is concern about draft if using fan speed up when thermostat is off you should take the setup location into consideration p.99
• Air flow adjustment ceiling height p.100
• Make the following setting according to the ceiling height the setting position no is set to 01 at the factory in the case of fxaq fxhq p.100
• In the case of fxuq71 125 p.100
• In the case of fxfq25 80 p.100
• In the case of fxfq100 125 p.100
• For the air conditioners with no setting for the function same as factory setting the units will be left in the stop condition when the power supply is reset automatically after power failure reset or the main power supply is turned on again after once turned off however for the air conditioners with the setting the units may start automatically after power failure reset or the main power supply turned on again return to the same operation condition as that of before power failure p.100
• For the above reasons when the unit is set enabling to utilize auto restart function after power failure reset utmost care should be paid for the occurrence of the following situation p.100
• Caution 1 the air conditioner starts operation suddenly after power failure reset or the main power supply turned on again consequently the user might be surprised with question for the reason why 2 in the service work for example turning off the main power switch during the unit is in operation and turning on the switch again after the work is completed start the unit operation the fan rotates p.100
• Auto restart after power failure reset p.100