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Hitachi RPC-1.5FSN3 Installation & Maintenance Manual

Nverter-driven multi-split system heat pump air conditioners
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Installation
&
Maintenance
Manual
INVERTER-DRIVEN
MULTI-SPLIT SYSTEM
HEAT PUMP
AIR CONDITIONERS
Type
RPC-1.5FSN3
RPC-2.0FSN3
RPC-2.5FSN3
Ceiling
RPC-3.0FSN3
RPC-4.0FSN3
RPC-5.0FSN3
RPC-6.0FSN3
IMPORTANT:
READ AND UNDERSTAND
THIS MANUAL BEFORE
USING THIS HEAT-PUMP
AIR CONDITIONERS.
KEEP THIS MANUAL FOR
FUTURE REFERENCE.
Model
P5416543

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Summary of Contents for Hitachi RPC-1.5FSN3

  • Page 1 Installation & Maintenance Manual INVERTER-DRIVEN MULTI-SPLIT SYSTEM HEAT PUMP AIR CONDITIONERS Type Model RPC-1.5FSN3 RPC-2.0FSN3 RPC-2.5FSN3 Ceiling RPC-3.0FSN3 RPC-4.0FSN3 RPC-5.0FSN3 RPC-6.0FSN3 IMPORTANT: READ AND UNDERSTAND THIS MANUAL BEFORE USING THIS HEAT-PUMP AIR CONDITIONERS. KEEP THIS MANUAL FOR FUTURE REFERENCE. P5416543...
  • Page 3 IMPORTANT NOTICE l HITACHI pursues a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary specifications without notice. l HITACHI cannot anticipate every possible circumstance that might involve a potential hazard. l This heat pump air conditioner is designed for standard air conditioning only. Do not use this heat pump air conditioner for other purpose such as drying clothes, refrigerating foods or for any other cooling or heating process.
  • Page 4 Therefore, the utilization of the unit other than those indicated in these instructions is not recommended. Please contact your local agent, as the occasion arises. HITACHI’s liability shall not cover defects arising from the alteration performed by a customer without HITACHI’s consent in a written form.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS 1. Safety Summary .............................1 2. Structure ................................6 2.1 Name of Parts ............................6 2.2 Refrigerant Cycle ............................7 2.3 Necessary Tools and Instrument List for Installation ................8 3. Before Installation ............................9 3.1 Combination of Outdoor Unit and Indoor Unit ..................9 3.2 Transportation and Handling ........................9 4.

  • Page 7: Safety Summary

    Safety Summary < Signal Words > l Signal words are used to identify levels of hazard seriousness. Definitions for identifying hazard levels are provided below with their respective signal words. DANGER : DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
  • Page 8 DANGER l Do not perform the installation work, refrigerant piping work, drain pump, drain piping and electrical wiring connection without referring to our installation manual. If the instructions are not followed, it may result in a water leakage, electric shock or a fire. l Use the specified non-flammable refrigerant (R410A) to the outdoor unit in the refrigerant cycle.
  • Page 9 WARNING l The installation work shall be performed by the specialist installer. If it is not completed, it may cause a water leakage, an electric shock, a fire or falling down the unit. l Perform the electrical work according to Installation Manual and all the relevant regulation and standards. If the instructions are not followed, an electrical shock and fire may occur due to insufficient capacity and inadequate performance.
  • Page 10 l When the indoor unit is operated with heating appliances, ventilate a room sufficiently. If not, it may cause suffocation. l Turn OFF the main power source immediately if the protection device is frequently activated or the main power source switch does not work. If not, it may cause an electric shock, a fire or explosion because there are possibilities of the electrical leakage or overcurrent, etc.
  • Page 11 CAUTION l Do not step or put any material on the product. l Do not put any foreign material on the unit or inside the unit. l Do not turn OFF the main power source of the indoor unit during the season of heating and cooling. The water can not be discharged forcedly so that overflows from the drain pan.

  • Page 12: Structure

    Flare Nut Refrigerant Liquid Pipe Connection with fb Flare Nut Drain Pipe Auto Louver Motor Drain Pan Air Inlet Grille Air Filter Air Outlet Air Inlet Model RPC-1.5FSN3 12.7 6.35 RPC-2.0FSN3 15.88 6.35 RPC-2.5FSN3 15.88 9.52 1270 1226 RPC-3.0FSN3...

  • Page 13: Refrigerant Cycle

    Refrigerant Cycle Indoor Unit : Refrigerant Flow Direction (Cooling) : Refrigerant Flow Direction (Heating) : Field Refrigerant Piping : Flare Connection Refrigerant Gas Pipe Connection ( ) Refrigerant Liquid Pipe Connection ( ) Mark Part Name Heat Exchanger Distributor Strainer Micro-Computer Control Expansion Valve 2.5 to 6.0 A (Gas Pipe Connection)

  • Page 14: Necessary Tools And Instrument List For Installation

    Necessary Tools and Instrument List for Installation Tool Tool Tool Handsaw Plier Cutter for Wires Phillips Screwdriver Pipe Cutter Gas Leak Detector Vacuum Pump Brazing Kit Leveller Refrigerant Gas Hose Hexagon Wrench Clamper for Solderless Terminals Megohmmeter Spanner Hoist (for Indoor Unit) Copper Pipe Bender Weigher Ammeter...

  • Page 15: Before Installation

    Before Installation Combination of Outdoor Unit and Indoor (3) Push the side cover forward to remove the hooks and the hooking plate. Unit The combination capacity of indoor unit against Position for Fixing Screw the outdoor unit is selected by the outdoor unit capacity.

  • Page 16: Indoor Unit Installation

    Indoor Unit Installation Factory-Supplied Accessories Check to ensure that the following accessories are packed with the indoor unit. Do not install the indoor unit in a flammable The hose clamp, screws, washers and cord clamps environment to avoid fire or an explosion. are put in the pipe insulation.

  • Page 17: Initial Check

    Initial Check • Consider the air distribution from the indoor unit to the space of the room, and select a suitable location so that uniform air temperature in the l Check to ensure that the number of below room can be obtained. is within 0.3kg/m .

  • Page 18: Installation

    • For the indoor unit with motion sensor, the Installation detecting area for the motion sensor is shown in 4.3.1 Position of Suspension Bolts the figure below. (1) Determine the final location and installation < Detecting Area > direction of indoor unit with care to the space Example for 1.5 to 6HP indoor units for piping and wiring.

  • Page 19: Installation Of Suspension Bolts

    4.3.2 Installation of Suspension Bolts (2) Hanging Indoor Unit < A. Hanging Indoor Unit (1) The structure of suspending part shall with Suspension Bracket > be strong enough. The ductor facilitates (a) Make holes in the ceiling for suspension suspending work. bolts.

  • Page 20: Installation Of Remote Control Switch

    < B. Hanging Indoor Unit without Suspension Bracket > (If there is not enough service space (4) Attach the side cover and the supporting between the ceiling and the indoor unit, hang string. the indoor unit by method A.) (5) Remove the protection film attached to the (a) Determine the position to install the louver surface.

  • Page 21: Refrigerant Piping Work

    The details shall be referred to “Installation & Maintenance Manual” of the outdoor unit. (2) Select the piping size from the following table. mm (in.) Model Gas Piping Liquid Piping RPC-1.5FSN3 f12.7 (1/2) f6.35 (1/4) RPC-2.0FSN3 f15.88 (5/8) f6.35 (1/4) RPC-2.5FSN3...

  • Page 22: Piping Connection

    Piping Connection Cap (Rear Side) 5.2.1 Position of Pipe Connection 146 (Liquid Pipe) The piping connection is performed inside 94 (Gas Pipe) the indoor unit. The pipe connection can be performed from 3 directions, rear, right and upper. For rear and upper pipe connection, the plastic cap is attached at knockout hole for the refrigerant pipe and the drain pipe.

  • Page 23: Piping Connection

    5.2.2 Piping Connection (2) Perform the flaring work as shown below. (1) Open the air inlet grille and perform the connecting work from lower side. mm (in.) (a) Press and slide the cover of the air inlet Diameter grille in the direction of the arrow with (fd) -0.4 fingers in the holes on the cover.
  • Page 24 (6) When on-site piping with joint such as elbow, socket is buried, provide a service access door to facilitate the check for connecting Do not apply excessive force to the flare nut part. when tightening. If applied, the flare nut may (7) Perform to support for earthquake resistant crack due to aged degradation and refrigerant to the pipes in order not to damage by an...

  • Page 25: Drain Piping

    Drain Piping Perform the drain piping work after connecting the < For Left Side Drain Piping > refrigerant pipes and attaching insulations. Left Side Cord Clamp Insulation Do not insert the drain pipe for the indoor unit Drain Plug to the drainage trench where corrosive gases occur.
  • Page 26 (3) Connecting Drain Piping (4) After the drain piping work is completed, check that water flows smoothly by pouring (a) Prepare a polyvinyl chloride pipe with a water into the drain pan by hose. 26mm outer diameter. (VP20 (based on JIS K6741) is recommended.) NOTE: (b) When the drain hose is used, do not...

  • Page 27: Electrical Wiring

    Electrical Wiring l The electrical wiring work must be performed l Wrap the accessory packing around the by authorized installers. If not, it may cause wires, and plug the wiring connection hole an electric shock or a fire. with the seal material to protect the product l Perform the electrical work according to from any condensate water or insects.

  • Page 28: Electrical Wiring Capacity

    3) The wire sizes marked with *2 in the above table are selected at the maximum current of the unit according to the wire, MLFC (Flame Retardant Polyflex Wire) manufactured by Hitachi Cable Ltd., Japan. 4) Use a shielded cable for the transmitting circuit and connect it to ground.

  • Page 29: Details Of Electrical Wiring Connection

    7.2.2 Details of Electrical Wiring Connection The electrical wiring capacity of the outdoor unit should be referred according to “Installation & Maintenance Manual” of the outdoor unit. Setting Dip Switch may be required depending on the combination with the outdoor unit. NOTE: When installing the unit in Australia, connect the both ends of shielded twist pair cable (remote control switch cable and control cable) to the earth.
  • Page 30 < Case B > l Wiring Connection (Single Indoor Unit) Power Source Type: 3 Phase 4 Wires < 3f 380-415V/50Hz > 220-240V / 50Hz 380V-415V / 50Hz (3N~) *1, *2 Remote Control Switch (Option) Main Main Switch Switch Outdoor Unit Indoor Unit L2L3 N Earth...
  • Page 31 l Wiring Connection (Twin, Triple and Quad Combinations for Simultaneous Operation) For following wiring connection, turn OFF No.1 pin at DSW6. Refer to “Installation & Maintenance Manual” of outdoor unit for details. Power Source Type: 3 Phase 4 Wires < 3f 380-415V/50Hz > 220-240V / 50Hz 380V-415V / 50Hz (3N~)
  • Page 32 l Wiring Connection (Twin, Triple and Quad Combinations for Individual Operation) Power Source Type: 3 Phase 4 Wires < 3f 380-415V/50Hz > 220-240V / 50Hz 380V-415V / 50Hz (3N~) *1, *2 Remote Remote Remote Remote Control Switch Control Switch Control Switch Control Switch (Option) (Option)
  • Page 33 Table 7.1 Recommended Wiring Capacity and Size for UTOPIA Series Model Main Switch Wiring Capacity (mm Transition Wiring Transition Rated Rated Fuse Power Remote between O.U. and I.U. Wiring Current Current Capacity Source Earth Control between Power Cable Wiring Switch Control Combination Indoor...
  • Page 34 (manufactured by HITACHI Cable Co. Ltd.)) or 2 core twist pair cable (equivalent to following cables: KPEV or KPEV-S (manufactured by HITACHI Cable Co. Ltd.)) for the control cable between the outdoor unit and the indoor unit. The total cable length should be less than 1000m.

  • Page 35: Position Of Electrical Wiring Connection

    Position of Electrical Wiring Connection l Tightly secure wirings to the terminal l Do not connect the main power source cables to block according to the specified torque. If the control line (Terminals A, B, 1 and 2 of TB2). tightening the terminals is not completed, If connected, the printed circuit board (PCB) will heat generation, an electric shock or a fire...
  • Page 36 (9) The wiring work for the indoor unit should be (c) Simultaneous Operation performed according to the electrical wiring (The indoor unit is H-LINK II model.) diagram and “Installation & Maintenance Manual” of the outdoor unit. Outdoor Unit Indoor Unit Indoor Unit (10) In Case that Power Source (220V / 240V) Is Applied to Control Line...
  • Page 37 (c) Connecting Remote Control Switch in Case of Connecting between Refrigerant Cycles Indoor Unit Indoor Unit Indoor Unit Indoor Unit Outdoor Unit Outdoor Unit Remote Control Remote Control Remote Control Switch Switch Switch Individual Individual Simultaneous (Thermo ON / OFF individually) (12) Attach the ring core (black) (accessory) when installing PC-ARF remote control switch.

  • Page 38: Transition Wiring For Remote Control Switch

    Transition Wiring for Remote Control Switch In the twin, triple, and quad combination of indoor units, the transition wiring for the remote control switch is not required. However, when connecting indoor units without transition wiring for remote control switch, the followings are limited.
  • Page 39 (d) Connecting to Wall Type Indoor Unit with Receiver The transition wiring is required when the wall type indoor unit (with receiver) is connected. Main Main Wall Type Wall Type Incorrect Correct (3) The address of indoor unit can not be changed from the remote control switch. (4) This indoor unit is adopted four (4) steps of fan speed (HIGH 2, HIGH, MED and LOW).

  • Page 40: Cautions For Individual Louver Setting

    7.4.1 Cautions for Individual Louver Setting (1) The individual louver setting is available up to 16 indoor units by one remote control switch. The connection more than 17 indoor units are not available. Individual Louver Individual Individual Individual Individual Louver Louver Louver Louver...

  • Page 41: Cautions For Air Panel With Motion Sensor

    7.4.2 Cautions for Air Panel with Motion Sensor (1) The air panel with motion sensor can be connected up to 16 indoor units by one remote control switch (PC-ARF). The air panel with motion sensor will be activated even if it is installed together with the air panel without motion sensor, (2) When the multiple indoor units with motion sensor are controlled by one remote control switch (PC-ARF), the transition wiring for remote control switch is required to all the indoor units.
  • Page 42 (5) The motion sensor part can not be mounted to the air panel P-AP160NA1 (without motion sensor type). (The air panel with motion sensor (P-AP160NAE) shall be used.) (6) The remote control switch PC-ARF must be utilized. Others are not available to set the motion sensor. The remote control switch PC-AR and PC-LH3A (including the receiver kit PC-ALH) can not be used to this 4-Way Cassette type indoor units.

  • Page 43: Caution For Electrical Wiring

    7.4.3 Caution for Electrical Wiring Do not fix the power source wire and the control wire to one terminal together. The pullbox is required when the transition wiring is required. Indoor Unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit Pullbox P5416543...

  • Page 44: Wiring Connection

    (d) After the wiring is completed, attach the Wiring Connection electrical box cover again with care in (1) The wiring connection for the indoor unit is order not to bite wires. shown in the figure below. Wire for Fan Motor Upper Side Wire Connection Rear Side...

  • Page 45: Function Selection By Remote Control Switch

    (4) Capacity Code Setting (DSW3) NOTE No setting is required, due to setting before shipment. This switch is utilized l The “n” mark indicates position of dip switches. for setting the capacity code which Figures show setting before shipment. corresponds to the Horse Power of the l When the unit number and the refrigerant cycle indoor unit.

  • Page 46: Test Run

    Test Run (3) Check to ensure that each wire is correctly connected at the power source. If incorrectly Test run should be performed according to this connected, the unit will not operate and the manual and “Installation & Maintenance Manual” of remote control switch will indicate the alarm the outdoor unit.
  • Page 47 2) The total number of the indoor units (c) Press “ ” or “ ”, select “LOUV.” and connected is indicated on the LCD select “ ” (auto swing) by pressing “ ” (Liquid crystal display). The case of the or “...
  • Page 48 2) Select “Check 1” at the check menu 7) Check that the value of “q1” is neither and press “OK”. (screen “B” will be 0% nor 100%. displayed.) If the value is indicated 0% or 100%, (This screen is NOT displayed when the reperform the procedure from item 5).
  • Page 49 • The run indicator on the remote control switch flashes when some abnormalities such as protection devices activated, etc occur during the test run. In addition, the alarm code, the unit model code and connected number of indoor units will be displayed as shown in the figure below.
  • Page 50 Alarm (Abnormality) Code Table Code Category Content of Abnormality Leading Cause Activation of Protection Device Activation of Float Switch (High Water Level in Indoor Unit (Float Switch) Drain Pan, Abnormality of Piping) Activation of Protection Device High Pressure Cut (R410A: 4.15MPa), Fan Motor Outdoor Unit (except Alarm Code: 41, 42) Locking for Outdoor at Cooling Operation...

  • Page 51: Safety And Control Device Setting

    Safety and Control Device Setting Indoor Unit RPC-1.5FSN3, RPC-2.0FSN3 RPC-2.5FSN3, RPC-3.0FSN3 Model RPC-4.0FSN3, RPC-5.0FSN3 RPC-6.0FSN3 For Evaporator Fan Motor Thermostat Cut-Out Cut-In For Control Circuit Fuse Capacity Freeze Protection Thermostat Cut-Out Cut-In Thermostat Differential All the installation work of the air conditioning is completed.
  • Page 52 © 2015 Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Ltd. P5416543, 2015 Printed in Japan...

This manual is also suitable for:

Rpc-2.0fsn3Rpc-2.5fsn3Rpc-3.0fsn3Rpc-4.0fsn3Rpc-5.0fsn3Rpc-6.0fsn3

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