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Hitachi RAS-5HVRNM1E Service Manual

Hitachi RAS-5HVRNM1E Manual Online:

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Hitachi RAS-5HVRNM1E User Manual
Hitachi RAS-5HVRNM1E User Guide
Hitachi RAS-5HVRNM1E Online Manual

Text of Hitachi RAS-5HVRNM1E User Guide:

  • Hitachi RAS-5HVRNM1E, 8.3.3 Self-Checking procedure of the Indoor Unit PCB (only for RPK) Self-checking procedure by means of the relays on the indoor unit PCB • To check the abnormal operation on the indoor unit PCB due to a malfunction. • To check the abnormal operation on the indoor unit PCB according to the results of the checking procedure by means of the CHECK switch on the remote control switch and the self-checking function. Procedure 1 Turn OFF the main power switch. 2 Disconnect the connectors CN7 and CN8. 3 Set the DIP switch DSW2 as shown below. Set the #1 sw

  • Hitachi RAS-5HVRNM1E, *1) Is DSW5-1P (terminal resistance on PCB1) ON? Set it correctly No Yes Is the voltage between the terminal "1" and "3" of PCB1 220V or 240V? *2) No No Yes No Replace the fuse Yes Yes Connect CN8 of PCB1 Yes Faulty PCB1 Yes No Yes Is LED1 (red) on PCB1 ON? Yes No Check the fuses of the outdoor unit power supply Yes Remove CN8 of PCB1 Is LED2 (green) on PCB1 ON? Is PCB1’ setting non-pole operating? Is connector (PCN2, CN1) for the transformer loosened? Plug PNC2 and CN11 correctly Is t

  • 11.6 Capacitor (CB1, CB2) This part is used for changing the alternative current to the direct current for the inverter. Connect two capacitor in line and used. Items Specifications Models LNX2G472MSEAHE Capacity of static electricity 4700 μF Rated voltage 400 VDC Permissible temperature range -25 ºC to 95 ºC 11 Electrical checks of main parts 452 SMGB0060 rev. 1- 12/2010

  • Hitachi RAS-5HVRNM1E, Output connections Indication Connections o1 o2 Specification of the components for a correct installation Component Manufacturer or specifications Remarks Auxiliary relay (X3) OMRON mini power relay model: MY1F or equivalent Voltage between relay terminals 12 Vdc - 75 mA (SS1) (x1), (x2) contact example Manual type Voltage between terminals of the 230V - 5 mA contactor 3P connector cable Optional part PCC-1A (capable of connecting the JST XHP -3 connector) Five wires with connectors as one set Wire (control) Voltage: 12V DC. 0.5 mm 2 — Wire (power) Voltage 230V 2.0 mm 2 — N O T E • The connection of the input signal is only

  • Hitachi RAS-5HVRNM1E, Lateral Side Blocked Upper Side Open Single Installation Pipe Cover Pipe Cover Ensure 250 mm or more of the side space on the pipe cover side. Ensure 250 mm or more of the side space on the pipe cover side. Upper Side Blocked Pipe Cover Pipe Cover Ensure 250 mm or more of the side space on the pipe cover side. Ensure 250 mm or more of the side space on the pipe cover side. 2 Unit Installation 14 SMGB0060 rev. 1- 12/2010

  • Hitachi RAS-5HVRNM1E, Alarm code 53 Protection activation of IPM or PCB2 for ES Series • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB1. – IPM and PCB2 have detecting function of abnormality. This alarm is indicated when the transistor module detect the abnormality 7 times in 30 minutes including 7. Retry operation is performe

  • Hitachi RAS-5HVRNM1E, 1.1 General information 1.1.1 Copyright © Copyright 2010 HITACHI Air Conditioning Products Europe, S.A. – All rights reserved. No part of this publication may be reproduced, copied, filed or transmitted in any shape or form without the permission of HITACHI Air Conditioning Products Europe, S.A. Within the policy of continuous improvement of its products, HITACHI Air Conditioning Products Europe, S.A. reserves the right to make changes at any time without prior notification and without being compelled to introducing them into products subsequently sold. This document may therefore have b

  • Hitachi RAS-5HVRNM1E, Hitachi Air Conditioning Products Europe, S.A. Ronda Shimizu, 1 - Polig. Ind. Can Torrella 08233 Vacarisses (Barcelona) Spain Hitachi certifies that our products have met EU consumer safety, health and environmental requirements. Hitachi Air Conditioning Products Europe, S.A. is certified with: ISO 9001 of AENOR, Spain for its Quality Management accordance with the standard ISO 14001 of AENOR Spain for its Environmental Management systems accordance with the standard Hitachi air conditioning products are manufactured according to: ISO 9001 of JQA, Japan for its Quality Management accordance with th

  • Hitachi RAS-5HVRNM1E, 3.2.8 Pump down refrigerant When the refrigerant should be collected into the outdoor unit due to indoor/outdoor unit relocation, collect the refrigerant as follows: 1 Attach the manifold gauge to the gas stop valve and the liquid stop valve. 2 Turn ON the power source. 3 Set the DSW1-1 pin of the outdoor unit PCB at the “ON” side for cooling operation. Close the liquid stop valve and collect the refrigerant. 4 When the pressure at lower pressure side (gas stop valve) indicates -0.01 MPa (-100 mmHg), per

  • Hitachi RAS-5HVRNM1E, Alarm code 06 Excessively low voltage or excessively high voltage for the inverter for ES Series • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB. – This alarm code is displayed when the voltage between terminal “P” and “N” of DIP-IPM is insufficient and the alarm has three occurrences in 30 minutes. If the number of occurrences is smaller than two, the retry operation is performed. The alarm code “06.” Means fan con

  • Hitachi RAS-5HVRNM1E, 7.1 Checking procedure before the test run When you have finished the installation, perform the test run according to the following procedure. After performing the test run, hand over the system to the customer. Perform the test run of the indoor units one by one in order. Make sure that the electrical wiring and the refrigerant piping are correctly connected. Start the indoor units one by one in order to make sure that the indoor units are correctly numbered. You should perform the test run according to Test run procedure using the remote control switch, see on page 176 D A N G E R

  • • Checking procedure for the compressor CHECK LIST ON COMPRESSOR Client: Model: Date: Serie No. Production Date: Checker: No. Check item Check method Result Remarks 1 Is THM9 correctly connected? THM9: Discharge Gas Thermistor 1. Is wire of thermistor correctly connected by viewing? 2. Check to ensure the 7-segment indication of Td when comp. is operating. Td: Temperature of THM9

  • Alarm code 51 Abnormal operation of the current sensor • The RUN LED flickers and "ALARM" is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB. – This alarm code is displayed

  • Hitachi RAS-5HVRNM1E, 8.3 Procedure for checking each main part 8.3.1 Self-checking procedure of PCB by means of the Remote Control Switch Use the following troubleshooting procedure for testing the PCB in the indoor unit and outdoor unit: If you are using a wireless remote control switch with the built-in receiver part of the wall-type indoor unit and you need to perform the above checking, perform the following procedure: 1 Turn OFF the power supply. 2 Disconnect the connector (CN25) on PWB(M). 8 Troubleshooting 299 SMGB0060 rev. 1- 12/2010 8

  • Hitachi RAS-5HVRNM1E, ¿ Removing expansion valve coil 1 Remove the service cover according to the section Removing service cover, see on page 366 in this chapter. 2 Open the P-mounting plate according to the section Opening electrical box (P-mounting plate), see on page 373 in this chapter . D A N G E R • Check that the LED201 (red) located on the “W” surface PCB is OFF when opening the P-mounting plate. • Do not touch the electrical components when LED201 (Red) located on the “W” surface PCB is ON in order to avoid an electrical shock. 3 Remove the CN5A connector on the control PCB

  • Hitachi RAS-5HVRNM1E, 5 Remove the electrical box cover. 6 Remove the fan motor connector (CN24) inserted into the PCB in the electrical box. Remove the fan motor lead wire fixed onto the motor clamp using a cord band. Remove four (4) screws which fixes the motor. 1. Cap nut. 2. Propeller fan. 1. Electrical box cover. 1. Cord band. 2. Fan motor lead wire. 3. Four (4) screws. 4. Fan motor. N O T E • To mount the motor, be sure to place the lead wire outlet downward. • Fix the motor lead wire onto the motor clamp using a cord band as before, to avoid obstructing the propeller fan. • Mounting the propeller fan: Insert th

  • Hitachi RAS-5HVRNM1E, Example of wiring diagram of fixing the operation mode. Outdoor unit PCB A Power supply • A: 3P connector cable. • X1: Cooling. • X2: Heating. • SS1: Fixing operation mode switch. • SS2: Change over switch Demand thermo OFF (3) This is an input function to control the maximum power that the compressor can consume. When this option is turned on, the outdoor units are stopped completely, and the indoor units go into thermo-OFF. Alarm “10” is displayed on the remote control. If the switch of this function is disconnected it becomes availab

  • Hitachi RAS-5HVRNM1E, 1A 1. CN5A. A. PCB1. N O T E • DO NOT touch electrical components while LED1 (Red) is ON to avoid electrical shock. Wait until the LED turns off. ¿ Removing solenoid valve coil (20A) 1 Remove the service cover following Removing service cover, see on page 414. 2 Open the P-mounting plate. Check to ensure the LED201 (Red) of the inverter PCB (PCB2) is OFF. 3 Pull the solenoid valve coil upwards by removing one (1) screw fixing the coil. 1. Fixing Screw for Solenoid Valve Coil. 2. Solenoid Valve (SVA). 3. Pull it upwards. ¿ Removing four-way valve coil 1 Remove the servi

  • Outdoor unit electrical expansion valve control 1 After supplying power source, the electronic expansion valve is completely opened. 2 When the compressor is stopped, the electronic expansion valve is completely closed to adjust its opening. 3 At starting operation (compressor is operated), opening of the electronic expansion valve is set at a specified opening. a Specified opening during heating

  • Hitachi RAS-5HVRNM1E, 4.3 Electrical wiring for the outdoor unit ES Series 4.3.1 Electrical wiring connection for the outdoor unit The correct electrical wiring connection for the outdoor unit is shown below. 1 Insert the power source cables L1 and N (for 230V/50Hz ) and the ground cable into the ring core, coiling them with two turns and fix the cables using the cable tie (accessory). As shown in next figure, do not insert the cables from different sides into the ring core. 1. N/(L2) Wire. 2. L1 Wire. 2 Connect the power supply source wires L1 and N (for 230V/50Hz) and L1, L2, L3 and N (for 400V/50Hz) to the terminal boa

  • Hitachi RAS-5HVRNM1E, 8.1.2 Failure of the power supply to the indoor unit and the remote control switch • The LED and the LCD are not indicated. • Not operated If the fuses are blown out or a breaker is activated, investigate the cause of the overcurrent and take the necessary action. Phenomenon Cause Check item Action (Turn OFF the main switch) Power failure or power is not ON Measure the voltage by means of the voltmeter Supply the power Blown out fuse or activation of the breaker at the power source Short circuit supplied between the wires Check for any uncovered part of the wires Remove the cause of the short circuit and replace th

  • Hitachi RAS-5HVRNM1E, 3.3.4 Twin and triple system installation.............................................................................................. 67 3.3.5 Drain discharging boss............................................................................................................... 68 3.4 Outdoor Units ES Series............................................................................................................ 70 3.4.1 Piping connection..............................................................................

  • Hitachi RAS-5HVRNM1E, When this function is activated, the operation mode is fixed in cooling mode. Thermo ON is only available for COOL or DRY mode at indoor unit. The minimum temperature is -5 ºC. To activate this option the jumper JP4 of the outdoor unit PCB1 must be cut. – Alternative defrost mode When one outdoor unit is connected with one H-LINK system with other outdoor units, is under defrosting, the other outdoor units defrosting is cancelled. After one outdoor unit defrosting is completed, another outdoor unit starts defrosting operation. To activate this option the jumper JP5

  • Hitachi RAS-5HVRNM1E, ¿ Removing the compressor 1 Remove the service cover, upper cover, bottom service cover and rear cover following Removing service cover, see on page 402, Removing upper cover, see on page 403 and Removing bottom service cover and rear cover, see on page 404. When the outdoor unit is installed close to a wall, remove the refrigerant piping and move the unit from the wall. 2 Remove the electrical box following Removing electrical box, see on page 405. 3 Collect the refrigerant from the check joint. 4 Remove the valve stay. 1. Upper cover. 2. Rear panel. 3. Check joint. 4. Rear pipe cover. 5

  • Hitachi RAS-5HVRNM1E, Code Protection Control P 7 Inverter-Trip Retry Control P 8 Voltage Drop (or Overvoltage) Retry Control P 9 Protection Control for Power Source Voltage Unbalance Detection P  Current Demand Control P b Suction Pressure Decrease Prevention Control • Retry indication continues for 30 minutes unless a protection control is indicated. • Retry indication disappears if the stop signal comes from all rooms. • Code Protection control P 7 Inverter Retry P 8 N O T E • The protection control code being indicated on 7.segment display is changed to an alarm code when the abnormal operation occurs. Also, the same alarm code is indicated

  • Hitachi RAS-5HVRNM1E, Alarm code 53 Transistor module protection activation for ES Series • The RUN LED flickers and “ALARM” is displayed on the remote control switch. • The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit number and the alarm code are displayed on the display of the outdoor unit PCB. – This alarm is displayed when the inverter PCB or DIP-IPM module detects the abnormal operation 7 times or more than 7 times in 30 minutes. The retry operation is performed six times. Conditions: The abnormal current to the inverter PCB or DIP-IPM, such as short-circuited, grounded, overcurrent or control voltage decrease.

  • RAS-(8-12)HRNM • Cycle and structural parts U34 U34 U30D U27B U27A U21A U21B U30A U71B U71A U77AU77B U30C U01A U01B U79 U81 U77B U77E U42 U28 U55 U51 U01C U30B U77C U77D U40A U40B U15B U15A U58 U15C U78 U70 U32B U32A U98A U98B U51 9 Spare Parts 336 SMGB0060 rev. 1- 12/2010

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