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Troubleshooting
Related Manuals for Hitachi FSN3E
Summary of Contents for Hitachi FSN3E
- Page 1 INSTALLATION AND OPERATION MANUAL SET FREE MINI SERIES FS(V)N(Y)3E...
- Page 2 English Specifications in this manual are subject to change without notice in order that HITACHI may bring the latest innovations to their customers. Whilst every effort is made to ensure that all specifications are correct, printing errors are beyond HITACHI’s control; HITACHI cannot be held responsible for these errors.
- Page 3 OUTDOOR UNIT FSVN3E FSNY3E Heat Pump Models RAS-4FSVN3E RAS-4FSNY3E RAS-5FSVN3E RAS-5FSNY3E RAS-6FSVN3E RAS-6FSNY3E INDOOR UNIT FSN(2/3/4)(M)(E)(i) RCIM 4-way cassette type 2-way cassette 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...
- Page 4 INDOOR UNIT FSN(2/3/4)(M)(E)(i) RPIM RPFI Floor type Floor concealed type Wall type In the ceiling RPIM-0.8FSN4E(-DU) RPI-0.8FSN4E RPK-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...
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Page 5: Table Of Contents
INDEX 1 SAFETY SUMMARY 2 IMPORTANT NOTICE 3 SYSTEM DESCRIPTION 4 BEFORE OPERATION 5 REMOTE CONTROLLER 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... - Page 6 Meaning of model codification 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...
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Page 7: Safety Summary
• HITACHI pursues a policy of continuing improvement • This air conditioner has been designed for the following in design and performance of products. The right is therefore temperature. -
Page 8: System Description
Do not attempt to turn service valve rod beyond its stop. 3 SYSTEM DESCRIPTION Hitachi presents the inverter-driven home central air-conditioning SET FREE mini series product, which is characterized by energy- saving, high efficiency, comfort, environmental protection, stability and reliability. In order to meet the requirement of increasing the control intelligence of equipment and of comfort, the intelligent control, energy-saving operation and comfortableness are more important. -
Page 9: Before Operation
BEFORE OPERATION 4 BEFORE OPERATION • Turn OFF the main switch when the system is to be stopped for a long C A U T I O N period of time: If the main switch is not turned OFF, electricity will be used, because the oil heater is always energised during compressor •... -
Page 10: Basic Troubleshooting
BASIC TROUBLESHOOTING 7 BASIC TROUBLESHOOTING No operation C A U T I O N • When water leakage from the indoor unit occurs, stop the operation Check whether the SET TEMPERATURE is set at the correct and contact your contractor temperature. -
Page 11: Name Of Parts
NAME OF PARTS PART II-INSTALLATION 8 NAME OF PARTS Nº Description Remarks Air intake Air outlet Service cover Electrical switch box Holes for refrigerant piping and electrical wiring piping Drain holes 3-Ø24 Drain holes 2-Ø26 Holes for fixing machine to wall 4-(M5) Refrigerant liquid pipe Flare nut: Ø9.52 (3/8”) -
Page 12: Refrigerant Cycle
REFRIGERANT CYCLE 9 REFRIGERANT CYCLE EXAMPLE: RCI-5FSVN3E RCI-2.5FSN4E Ø9.52 (Ø9.52) RCI-2.5FSN4E (Ø15.88) Ø9.52 R410A 4.15 MPa Refrigerant flow Refrigerant flow Installation Connection by Connection by Connection by Leakage test Gas refrigerant for cooling for heating refrigeration pipe flare nut flange welding pressure Part name... -
Page 13: Units Installation
UNITS INSTALLATION 10 UNITS INSTALLATION 10.1 GENERAL NOTES • Work with sufficient ventilation, for working in an enclosed space may cause oxygen deficiency. Toxic gas may be produced when cleaning C A U T I O N agent is heated to high temperature by, e.g., being exposed to fire. •... -
Page 14: Installation Place Provision
UNITS INSTALLATION 10.3 INSTALLATION PLACE PROVISION Concrete Foundation be selected, or establish the drainage. It is recommended not to install the unit at high place such as on 1 When installing the outdoor unit, fix the unit by anchor bolts. a roof or a veranda, because the water may drip from the unit. -
Page 15: Refrigerant Piping & Refrigerant Charge
REFRIGERANT PIPING & REFRIGERANT CHARGE Suspended unit. C A U T I O N 1 Suspend the unit as the drawing Pay attention to the following for installation: indicates. • Installation shall ensure that outdoor unit 2 Ensure that wall can resist the will not incline, vibrate, make noise or fall Wall bracket (*) down by a blast of wind or in an earthquake. -
Page 16: Piping Connection For Outdoor Unit
REFRIGERANT PIPING & REFRIGERANT CHARGE 11.2 SUSPENSION OF REFRIGERANT PIPING Suspend the refrigerant piping at certain points and prevent the Do not fix the refrigerant piping directly with the metal fittings refrigerant piping from touching the weak part of the building (The refrigerant piping may expand and contract). - Page 17 REFRIGERANT PIPING & REFRIGERANT CHARGE For the downward piping The required tightening torque is as follows: Pipe Size Tightening Torque (Nm) Cables Gas piping Ø 6.35 mm Liquid piping Ø 9.52 mm Knock-out hole Ø 12.70 mm Ø 15.88 mm 10 After connecting the refrigerant piping, seal the open space between knockout hole and refrigerant pipes by using Bottom base...
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Page 18: Outdoor Unit Stop Valve
REFRIGERANT PIPING & REFRIGERANT CHARGE Outdoor unit stop valve Example of Evacuation and Refrigerant Charge. Never use the refrigerant charged in the outdoor unit for air purging. Do not apply two spanners Insufficient refrigerant will lead to failure at this position. If applied, leakage will occur. -
Page 19: Refrigerant Piping Length
REFRIGERANT PIPING & REFRIGERANT CHARGE 11.4 REFRIGERANT PIPING LENGTH The refrigerant piping between the indoor unit and the outdoor unit should be designed using the following chart. Keep the design point within the area of the chart, which is showing the applicable height difference according to piping length. When outdoor unit is installed higher than indoor unit... - Page 20 REFRIGERANT PIPING & REFRIGERANT CHARGE Specific considerations of combinability Combinability RPK restrictions Maximum Maximum number quantity of of combinable RPK Minimum Maximum Minimum combined indoor units Nominal Minimum nominal nominal capacity of indoor units (This number of units Outdoor unit combination combination combination...
- Page 21 The installation position of big capacity indoor unit should be as far away as possible from the first branch. N O T E In case of installations not following the above considerations, please contact with your Hitachi dealer for advice. C A U T I O N...
- Page 22 REFRIGERANT PIPING & REFRIGERANT CHARGE 11.6 DISTRIBUTION METHOD Installation position N O T E Perform to install horizontally always (Example.: In case of For the following installation types, when the installation is divided into two or more parts, equilibrate the length and the ratio of total indoor unit model MH-108AN) connected capacity of each part.
- Page 23 REFRIGERANT PIPING & REFRIGERANT CHARGE Considerations Installation position • Horizontal installation With line distribution method, it is possible to make the first or the second main pipe distribution within the third branch. Locate the branch pipes on the same horizontal plane. (Inclination within 30°) And do not make the main pipe distribution, at or after the fourth Make the straight length a minimum of 0.5m after the vertical...
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Page 24: Brazing Work
REFRIGERANT PIPING & REFRIGERANT CHARGE 11.6.3 Combination branch piping system 11.6.4 Brazing work Installation type C A U T I O N • Use nitrogen gas for blowing during pipe brazing. If oxygen, acetylene or fluorocarbon gas is used, it will cause an explosion or poisonous gas. -
Page 25: Refrigerant Charge Amount
REFRIGERANT PIPING & REFRIGERANT CHARGE 11.8 REFRIGERANT CHARGE AMOUNT Although refrigerant has been charged into this unit, additional Finally, record the refrigerant charge quantity in the F-Gas label refrigerant charge is required according to piping length. order to facilitate maintenance and servicing activities. •... -
Page 26: Drain Piping
DRAIN PIPING 11.9 PUMP DOWN REFRIGERANT When the refrigerant should be collected into the outdoor unit C A U T I O N due to indoor/outdoor unit relocation, collect the refrigerant as Measure the low pressure by the pressure gauge and keep it follows: not to decrease than -0.01 MPa. -
Page 27: Electrical Wiring
ELECTRICAL WIRING 13 ELECTRICAL WIRING 13.1 GENERAL CHECK 1 Ensure that the field-supplied electrical components (mains C A U T I O N power switches, circuit breakers, wires, connectors and wire • Check to ensure that screws for terminal block are tightly tightened. terminals) have been properly selected according to the •... - Page 28 ELECTRICAL WIRING 13.2 ELECTRICAL WIRING CONNECTION FOR OUTDOOR UNITS The correct electrical wiring connection for the outdoor unit is shown below: 1 Using the appropriate cable, connect the power circuit to the appropriate terminals as shown on the wiring label and the illustration below.
- Page 29 ELECTRICAL WIRING 13.3 SETTING OF DIP SWITCHES, ROTARY SWITCHES AND JUMPERS 13.3.1 Printed circuit board (PCB) DSW3: Capacity RAS-(4-6)FS(V)N(Y)3E RAS-4FSVN3E RAS-5FSVN3E RAS-6FSVN3E RAS-4FSNY3E No setting is required RAS-5FSNY3E RAS-6FSNY3E Refrigerant Cycle No. Setting 13.3.2 Setting of DIP switches, rotary switches and jumpers DSW4 ...
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Page 30: Common Wiring
ELECTRICAL WIRING 13.4 COMMON WIRING 13.4.1 Electrical wiring between indoor unit and outdoor unit Connect the electrical wires between the indoor unit and the outdoor unit, as shown below. • The refrigerant piping and the control wiring are connected to the units in the same refrigerant cycle. •... -
Page 31: Wire Size
ELECTRICAL WIRING 13.4.2 Wire size Connection wiring Recomended minimum sizes for field provided wires: Power source cable size Transmitting cable size Model Power supply Max. current (A) EN60 335-1 EN60 335-1 All Indoor Units 0.75 mm² RAS-4FSVN3E 26.0 6.0 mm 1~ 230V 50Hz RAS-5FSVN3E 26.0... -
Page 32: Specifications
ELECTRICAL WIRING 13.5 H-LINK II SYSTEM 13.5.3 Specifications The H-LINK II is the wiring connection system between units. The H-LINK II wiring system only needs: • Transmission cable: 2-wire. • Two transmission wires connecting each indoor and outdoor • Polarity of transmission cable: non-polar wire. unit for a total of 64 refrigerant cycles. - Page 33 ELECTRICAL WIRING 13.5.4 DIP switch setting for multiple H-LINK system The DIP switches of all the outdoor and indoor units have to be set as follows: Setting before the Unit Name of DIP switch Mark Function shipment DSW5-1 is “ON” position before shipment. •...
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Page 34: Installation Of Remote Controller
INSTALLATION OF REMOTE CONTROLLER 14 INSTALLATION OF REMOTE CONTROLLER 14.1 INSTALLATION OF REMOTE CONTROL SWITCH All data related to Installation about Remote Control Switch are in the specific Installation Manual. PC-ART Please refer to the Installation and Operation manual corresponding to the remote control switch model. -
Page 35: Test Running
TEST RUNNING 15.1 TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH (PC-ART) Turn ON the power source of the Indoor and Outdoor Units Set the TEST RUN mode by remote control switch. Operation lamp Counting number of Depress the “MODE” and the “ OK”... - Page 36 TEST RUNNING Remote Control Inspection Points after Unit Condition Wrong Portions Switch Indication Power Source OFF Connecting Order of each Terminal Board. Screw fastening of each Terminal Boards. N O T E The power source of Outdoor The operation lamp Unit in not turned ON.
- Page 37 TEST RUNNING Operation Dip Switch Setting Operation Remarks • Take care that the indoor units start Setting of Operation Mode: The indoor unit automatically start operation in accord with the test run to operate when the test run of the Cooling: Set DSW1-2 OFF.
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Page 38: Safety Summary & Control Device Setting
SAFETY SUMMARY & CONTROL DEVICE SETTING 16 SAFETY SUMMARY & CONTROL DEVICE SETTING Compressor Protection High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting. Fan Motor Protection When the thermistor temperature is reached to the setting, motor output is decreased. The other way, when the temperature becomes lower, limitation is cancelled. -
Page 39: Troubleshooting
TROUBLESHOOTING Code Category Abnormality Cause number Failure of fan motor, drain discharge, PCB, relay, float switch Indoor unit Activation of the safety device activated Activation of PSH, locked motor, abnormal operation in the Outdoor unit Activation of the safety device power supply phase Abnormal transmission between outdoor and Incorrect wiring, failure of PCB, tripping of fuse, power supply... - Page 40 TROUBLESHOOTING Code Category Abnormality Cause number Activation of overcurrent protection activation for Failure of DIP-IPM, heat exchanger clogged, locked inverter compressor, EVI/EVO failure or overcharge. Abnormality of current sensor for inverter Failure of control PCB, inverter module. Inverter module abnormality. Inverter Protection activation of inverter module Failure of compressor, clogging of heat exchanger.
- Page 41 Hitachi Air Conditioning Products Europe, S.A.U. Ronda Shimizu, 1 - Políg. Ind. Can Torrella 08233 Vacarisses (Barcelona) Spain...