Hitachi FSN3E, Installation And Operation Manual

Page 1: ...SET FREE MINI SERIES FS V N Y 3E INSTALLATION AND OPERATION MANUAL ...

Page 2: ...red by the Kyoto protocol global warming potential GWP R410A R407C 1975 1652 5 English Instructions to fill in the F Gas Label 1 Fill in the Label with indelible ink the refrigerant amounts Factory Charge Additional Charge Total Charge 2 Stick the Protection Plastic Film on the F Gas Label delivered in a plastic bag with the Manual To see Figure nº 2 Figure 1 F Gas Label with Protection Plastic Fi...

Page 3: ...sette type C Ceiling type RCIM 0 8FSN3 RCI 1 0FSN3 E i k RCIM 1 0FSN3 RCD 1 0FSN2 RCI 1 5FSN3 E i k RCIM 1 5FSN3 RCD 1 5FSN2 RPC 1 5FSN3 RCI 2 0FSN3 E i k RCIM 2 0FSN3 RCD 2 0FSN2 RPC 2 0FSN3 RCI 2 5FSN3 E i k RCD 2 5FSN2 RPC 2 5FSN3 RCI 3 0FSN3 E i k RCD 3 0FSN2 RPC 3 0FSN3 E RCI 4 0FSN3 E i k RCD 4 0FSN2 RPC 4 0FSN3 E RCI 5 0FSN3 E i k RCD 5 0FSN2 RPC 5 0FSN3 E RCI 6 0FSN3 E i k RPC 6 0FSN3 E ...

Page 4: ... 0 8FSN H 3M RPIM 1 0FSN4E DU RPI 1 0FSN4E RPK 1 0FSN H 3M RPF 1 0FSN2E RPFI 1 0FSN2E RPIM 1 5FSN4E DU RPI 1 5FSN4E RPK 1 5FSN H 3M RPF 1 5FSN2E RPFI 1 5FSN2E RPI 2 0FSN4E RPK 2 0FSN3M RPF 2 0FSN2E RPFI 2 0FSN2E RPI 2 5FSN4E RPK 2 5FSN3M RPF 2 5FSN2E RPFI 2 5FSN2E RPI 3 0FSN4E RPK 3 0FSN3M RPI 4 0FSN4E RPK 4 0FSN3M RPI 5 0FSN4E RPI 6 0FSN4E ...

Page 5: ...OPERATION 6 AUTOMATIC CONTROLS 7 BASIC TROUBLESHOOTING 8 NAME OF PARTS 9 REFRIGERANT CYCLE 10 UNITS INSTALLATION 11 REFRIGERANT PIPING REFRIGERANT CHARGE 12 DRAIN PIPING 13 ELECTRICAL WIRING 14 INSTALLATION OF REMOTE CONTROLLER 15 TEST RUNNING 16 SAFETY SUMMARY CONTROL DEVICE SETTING 17 TROUBLESHOOTING ...

Page 6: ...ing of model codification RAS X FS V N Y 3 E Unit Type Outdoor Unit Compressor power HP 4 5 6 Set Free System 2 pipes Single phase 1 230V50Hz R410A Refrigerant Threephase 3N 400V 50Hz Series Made In Europe ...

Page 7: ...TACHI pursues a policy of continuing improvement in design and performance of products The right is therefore reserved to vary specifications without notice HITACHI cannot anticipate every possible circumstance that might involve a potential hazard This air conditioner has been designed for standard air conditioning for human beings only Do not use this for other purposes such as for drying clothe...

Page 8: ...aximun allowable pressure MPa High pressure switch cut out value MPa FS V N Y 3E Series RAS 4 6 HP R410A 4 15 4 00 4 10 NOT E The label for the vessel under PED are attached on the high pressure vessel The pressure vessel capacity and vessel category are indicated on the vessel Location of high pressure switch Compressor Oil separator NO TE The high pressure switch is indicated on the electrical w...

Page 9: ...for 6 minutes maximum to protect compressor Frost prevention during cooling operation When the system is operated in a low temperature room the cooling operation may be changed to fan operation for a while to avoid frost formation on the indoor heat exchanger Automatic restart after power failure If the power supply is interrupted for short periods of time up to 2 seconds the Remote Control switch...

Page 10: ...During the cooling operation a sound may be heard from the indoor unit heat exchanger due to water freezing or melting Click sound on Outdoor Unit When the system main switch is on click sound may be heard This sound comes from electrical expansion valve reset function Chatter sound on Outdoor unit During system starting stopping or defrosting operation chatter sound might be heard This is due to ...

Page 11: ...ce cover 4 Electrical switch box 5 Holes for refrigerant piping and electrical wiring piping 6 Drain holes 3 Ø24 7 Drain holes 2 Ø26 8 Holes for fixing machine to wall 4 M5 9 Refrigerant liquid pipe Flare nut Ø9 52 3 8 10 Refrigerant gas pipe Flare nut Ø15 88 5 8 NAME OF PARTS PMML0354A rev 1 03 2015 5 ...

Page 12: ... 2 Outdoor unit Heat exchanger 12 Micro Computer Control Expansion Valve 22 Branch Pipe gas 3 Accumulator 13 Check valve 23 Indoor Unit Heat Exchanger 4 Oil Separator 14 Solenoid valve 24 Strainer 5 Strainer 15 Check Joint 25 Expansion Valve 6 Strainer 16 Stop Valve for Liquid Line 26 Distributor 7 Strainer 17 Stop Valve for Gas Line 27 Gas discharge thermistor 8 Distributor 18 High Pressure Switc...

Page 13: ...ck or fire Keep clearance between the units of more than 50mm and avoid obstacles that may hamper air intake when installing more than one units together Install the outdoor unit in the shade or not exposed to direct sunshine or direct radiation from high temperature heat source Do not install the Outdoor Unit in a space where a seasonal wind directly blows to the Outdoor fan Check to ensure that ...

Page 14: ...e drainage It is recommended not to install the unit at high place such as on a roof or a veranda because the water may drip from the unit If the unit installation at high place is not avoidable the drain water should be treated surely by installing additional drain pan Especially in winter the drain water may be frozen and cause of injury by slipping 4 In case of the drain piping is necessary for...

Page 15: ...oor unit outlet may cause inverse rotation and damage the fan and motor 11 REFRIGERANT PIPING REFRIGERANT CHARGE 11 1 PIPING MATERIALS 1 Prepare locally supplied copper pipes 2 Select the piping size with the correct thickness and correct material which can have sufficient pressure strength 3 Select clean copper pipes Make sure there is no dust and moisture inside Blow the inside of the pipes with...

Page 16: ...Prepare a field supplied bend pipe for liquid line Connect it to the liquid valve by flare nut through the square hole of bottom base 4 For Gas Piping Connection Prepare a field supplied bend pipe for gas line Braze it and the factory supplied pipe flange at the outside of the unit 5 The pipes can be connected from 4 directions Make holes in the piping cover or cabinet for taking out pipes Take th...

Page 17: ...8 Check to ensure that the stop valves are closed completely before connecting pipes 9 Connect the field supplied refrigerant pipes to the indoor unit and outdoor unit Apply the oil thinly at the seat flare nut and pipe before tightening The required tightening torque is as follows Pipe Size Tightening Torque Nm Ø 6 35 mm 20 Ø 9 52 mm 40 Ø 12 70 mm 60 Ø 15 88 mm 80 10 After connecting the refriger...

Page 18: ... joint of the liquid line stop valve Charge the proper quantity of refrigerant according to the piping length Calculate the quantity of the refrigerant charge Fully open the gas line stop valve and slightly open the liquid line stop valve Charge refrigerant by opening the gauge manifold valve Charge the required refrigerant within the difference range of 0 5kg by operating the system in cooling Fu...

Page 19: ...her than indoor unit When outdoor unit is installed lower than indoor unit Setting before shipment Equivalent piping length m Piping system Case a Header branch Case b Line branch NO TE The liquid piping and the gas piping must be of the same length and run along the same route Multikits for multiple connections optional accessory as system parts must be used to install the branch pipe to the indo...

Page 20: ...furthest indoor unit L1 Actual length 75 Equivalent length 95 Maximum length from the 1st multikit to the furthest indoor unit L2 40 Maximum length between multikit and indoor unit L3 Case a Header branch 15 Case b Line branch 10 Maximum height difference between outdoor and indoor unit Hi O If the outdoor unit is higher than the indoor unit 30 If the outdoor unit is lower than the indoor unit 30 ...

Page 21: ... your Hitachi dealer for advice CAUT I ON In case of exceeding the quantity of indoor units shown before and in some extreme conditions in terms of piping length and temperature when all indoor units are in simultaneous operation performance can decrease and discharge temperature of some indoor units can be lower than comfort temperature 11 5 REFRIGERANT PIPING SIZE Table Outdoor unit to first mul...

Page 22: ...ader Indoor unit Main pipe Installation position Perform to install horizontally always Example In case of model MH 108AN Horitzontally Horitzontally Gas piping side Liquid piping side CAUTION Seal the end of branch pipes which are not connected by brazing factory supplied closing pipes 11 6 2 Line branch piping system Installation types 3 5 6 4 7 1 2 8 f b g NOTE Distribution system not recommend...

Page 23: ...wo multi kits Installation position Horizontal installation Locate the branch pipes on the same horizontal plane Inclination within 30 Make the straight length a minimum of 0 5m after the vertical bend Horizontal Correct Incorrect Maximum inclination of 30º Straight length min 0 5m Downward Upward Upward Downward Maximum inclination of 30º Vertical installation Straight length of the pipe connecti...

Page 24: ...ese types of tests cycle when performing a leakage test or an airtight test These types of gases are extremely dangerous Insulate the unions and flare nuts at the piping connection part com pletely Insulate the liquid piping completely to avoid a decrease of perfor mance if not it will cause sweating on the surface of the pipe Charge refrigerant correctly Overcharging or insufficient charging coul...

Page 25: ...iping Pipe size mm Additional refrigerant charge factor kg m Ø9 52 x 0 05 Ø6 35 x 0 02 Step 2 Charging work Charge refrigerant R410A into the system according to the instructions in the Service Manual Step 3 Total refrigerant charge of the system WTOT kg The total refrigerant charge Total charge of this system is calculated by the following formula WTOT W W0 System example WTOT kg W0 is the outdoo...

Page 26: ...aulty DIP switch DSW1 1 ON Manifold gauge Gas stop valve Liquid stop valve 12 DRAIN PIPING 12 1 DRAIN DISCHARGING BOSS When the base of the outdoor unit is temporarily utilized as a drain receiver and the drain water in it is discharged this drain boss is utilized to connect the drain piping Model Applicable Model DBS 26 FS V N Y 3E Connecting procedure 1 Insert the rubber cap into the drain boss ...

Page 27: ...onnected 8 Connect a fuse of specified capacity CAUTIO N Check to ensure that screws for terminal block are tightly tightened Check to ensure that the indoor fan and the outdoor fan have stopped before electrical wiring work or periodical check is performed Protect the wires drain pipe electrical parts from rats or other small animals If not protected rats may damage unprotected parts and at the w...

Page 28: ...30 V Transmission wires 5 V Transmission wires 5 V Power supply AC 400 V 1 230V 50Hz 3N 400V 50Hz 3 Fix the cable with the clamp supplied in the Electrical Box to ensure strain relief 4 When routing out cable make sure that it does not obstruct mounting of the outdoor service cover Wiring Method Keep a distance between each wiring terminal and attach insulation tape or sleeve as shown in the figur...

Page 29: ...Set by PSW 6 External Input Output Selection Selection is Set by PSW DSW3 Capacity No setting is required RAS 4FSVN3E RAS 5FSVN3E RAS 6FSVN3E RAS 4FSNY3E RAS 5FSNY3E RAS 6FSNY3E Refrigerant Cycle No Setting DSW4 Setting position Setting for the ten digit RSW1 Setting position Setting for the last digit DSW5 Transmission Setting of End Terminal Resistance Setting before shipment DSW6 Other settings...

Page 30: ...cal data and recommended wiring and breaker sizes 1 O U In the case that a conduit tube for field wiring is not used fix rubber bushes with adhesive on the panel All the field wiring and equipment must comply with local and international codes H LINK twist pair shielded cable must be grounded in the outdoor unit side CAUT I ON Pay attention to the connection of the operating line Incorrect connect...

Page 31: ...l codes and regulations when selecting field wires Circuit breakers and Earth Leakage breakers Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord code designation H05RN F Main switch protection Select the main switches in according to the next table Model Power source Max Current A CB A ELB no poles A mA All Indoor Units 1 230V 50Hz 5 0 6 2 40 30 RAS 4FSVN...

Page 32: ...ction of the complementary central control devices is easy NO TE CSNET WEB CSNET Manager is centralized control system which al lows the installation to be controlled remotely They can be connected at any point of the local corporate network or even via the Internet 13 5 3 Specifications Transmission cable 2 wire Polarity of transmission cable non polar wire Maximum number of indoor units that can...

Page 33: ...frigerant cycle address of the indoor unit Set the DSW5 and RSW2 corresponding to the address of outdoor unit in the same refrigerant cycle Address of the indoor unit DSW6 RSW1 DSW6 RSW1 Setting indoor unit address Set the DSW6 and RSW1 not to overlap the setting of other indoor units in the same refrigerant cycle If no set the automatic address function is performed Example of the setting of the ...

Page 34: ...compressor oil by the oil heater Pay attention to the following items while the system is running Do not touch any of the parts by hand at the discharge gas side since the compressor chamber and the pipes at the discharge side are heated higher than 90 C DO NOT PUSH THE BUTTON OF THE MAGNETIC SWITCH ES it will cause a serious accident Do not touch any electrical components for more than three minu...

Page 35: ...d 4 Screw Fastening of each Terminal Boards Counting number of connected units is incorrect The power source of Outdoor Unit is not turned ON The operating line wiring between indoor unit and outdoor unit is not connected The connection of control cables between each indoor units are incorrect When one remote control switch controls multiple units 5 Dip Switch Setting on Printed Circuit Board 6 Co...

Page 36: ...r else Check by the abnormality mode table in the Technical Catalogue Do it by service people The operation lamp Flickers 1 Time 1s Unit No Alarm Code and Unit Code flicker The unit does not start The connection of the remote control cable between Indoor Units is incorrect Check by the abnormality mode table in the Technical Catalog Do it by service people Back to after checking Instructions for t...

Page 37: ...OFF for the indoor units not to operate test run In this case the TEST RUN indication of the remote control switch may flicker and this is not abnormal The setting of DSW1 is not required for the test run from the remote control switch Manual OFF of Compressor Setting Compressor Manual OFF Set DSW1 4 ON Compressor ON Set DSW1 4 OFF When DSW1 4 is ON during compressor operation the compressor stops...

Page 38: ... 15 Cut In MPa 3 20 0 15 3 20 0 15 For Control Fuse 1 230V 50Hz 3N 400V 50Hz A A 50 2X20 CCP Timer min Setting Time 3 3 For Condenser Fan Motor Automatic Reset Non Adjustable each one for each motor Internal Thermostat Cut Out ºC For Control Circuit A 5 5 Fuse Capacity on PCB 17 TROUBLESHOOTING Alarm Code Indication of Remote Control Switch Abnormal indoor unit number Abnormal refrigerant cycle nu...

Page 39: ... of the protection device for the indoor fan motor Failure of fan motor 21 Sensor on outdoor unit High pressure sensor Incorrect wiring disconnected wiring broken cable short circuit 22 Thermistor for outdoor ambient temperature THM7 Failure of thermistor sensor connection 23 Thermistor for discharge gas temperature THM9 Incorrect wiring disconnected wiring broken cable short circuit 24 Thermistor...

Page 40: ...fin thermistor clogging of heat exchanger abnormal outdoor fan 55 Inverter module abnormality Failure of inverter module 57 Outdoor fan Fan motor abnormality Disconnected wire of incorrect wiring between control PCB and inverter PCB Incorrect wiring or fan motor abnormality b1 Indoor unit number setting Incorrect setting of the unit and the refrigerant cycle number Over 64 indoor units setting by ...

Page 41: ...Hitachi Air Conditioning Products Europe S A U Ronda Shimizu 1 Políg Ind Can Torrella 08233 Vacarisses Barcelona Spain ...