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Hitachi RAS-12FSXNHE User Manual

Hitachi RAS-12FSXNHE
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SET FREE SERIES
FSXN1E
FSXNH(E)
INSTALLATION AND OPERATION MANUAL
MANUAL DE INSTALACIÓN Y FUNCIONAMIENTO
INSTALLATIONS- UND BETRIEBSHANDBUCH
MANUEL D’INSTALLATION ET DE FONCTIONNEMENT
MANUALE D’INSTALLAZIONE E D’USO
MANUAL DE INSTALAÇÃO E DE FUNCIONAMENTO
INSTALLATIONS- OG BETJENINGSVEJLEDNING
INSTALLATIE- EN BEDIENINGSHANDLEIDING
INSTALLATION- OCH DRIFTHANDBOK
ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ ΚΑΙ ΛΕΙΤΟΥΡΓΙΑΣ
PMML0294A_rev.2_02-2014.indb 1 14/07/2014 12:27:46
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Hitachi RAS-12FSXNHE Specifications

General IconGeneral
Cooling Capacity3.5 kW
Heating Capacity4.0 kW
Power Supply220-240V, 50Hz
Energy Efficiency Ratio (EER)3.21
Coefficient of Performance (COP)3.61
RefrigerantR32
Indoor Unit Weight9.5 kg
Noise Level (Outdoor Unit)50 dB(A)
TypeSplit System

Summary

1 GENERAL INFORMATION

1.3 SAFETY

Covers safety warnings, symbols, and precautions related to system operation and installation.

1.3.2 Additional information about safety

Provides additional safety guidelines regarding electrical hazards, refrigerant leaks, and installation precautions.

1.3.3 Pressure vessel and safety device

Information on the high-pressure vessel and safety device, including warnings against modification.

5 REFRIGERANT CYCLE

5.1 RAS-(8-12)FSXN1E

Refrigerant cycle diagram and component list for RAS-(8-12)FSXN1E.

5.2 RAS-(14/16)FSXN1E

Refrigerant cycle diagram and component list for RAS-(14/16)FSXN1E.

5.3 RAS-(5/6)FSXNH(E)

Refrigerant cycle diagram and component list for RAS-(5/6)FSXNH(E).

5.4 RAS-(8-12)FSXNH(E)

Refrigerant cycle diagram and component list for RAS-(8-12)FSXNH(E).

6 TRANSPORT, LIFTING AND HANDLING OF THE UNITS

6.3 LIFTING METHOD

Details on the correct method for lifting units using slings, emphasizing safety and proper attachment points.

7 UNIT INSTALLATION

7.1 PRELIMINARY CONDITIONS FOR POSITIONING OF OUTDOOR UNIT

Guidance on selecting suitable locations for outdoor units, considering sunlight, ventilation, noise, and access.

7.4 FOUNDATION AND ANCHORAGE OF OUTDOOR UNIT

Covers foundation requirements and the correct positioning and fastening of anchorage bolts for outdoor units.

8 PIPING WORK AND REFRIGERANT CHARGE

8.1 REFRIGERANT PIPE SELECTION

Guidelines for selecting the correct refrigerant pipe sizes based on system type and outdoor unit capacity.

8.1.1 Refrigerant pipe selection

Instructions for selecting pipe sizes, with cautions on using incorrect diameters affecting performance and compressor life.

8.1.2 Copper pipes, sizes, connection and insulation

Details on copper pipe specifications, sizes, connection methods, and insulation requirements.

8.1.6 General instructions on the installation of refrigerant pipes

Provides general guidance on installing refrigerant pipes, including flared connection mounting and insulation.

8.1.7 Refrigerant pipe connection for heat pump systems (2 pipes) and heat recovery systems (3 pipes)

Specifies pipe connection details and sizes for heat pump and heat recovery systems, including kit usage.

9.1 AIR-TIGHT TEST

Procedure for performing air-tight tests on refrigerant piping, including pressure requirements and leak detection methods.

Air-tight test method

Detailed procedure for conducting air-tight tests using manifold gauges and nitrogen gas, including pass/fail criteria.

9.2 VACUUMING

Steps for vacuum pumping refrigerant lines to remove moisture and non-condensable gases.

9.3 ADDITIONAL REFRIGERANT CHARGE CALCULATION

Methodology for calculating and recording additional refrigerant required based on piping length and system configuration.

Calculating method of additional refrigerant charge (W kg)

Details the calculation process for refrigerant charge based on pipe diameter, length, and unit capacity.

9.4 CHARGING WORK

Step-by-step instructions for charging additional refrigerant into the system, including safety precautions and valve operations.

9.5 AUTOMATIC SIMPLE JUDGEMENT SYSTEM FOR REFRIGERANT AMOUNT

Describes the automatic system for judging the refrigerant amount and interpreting the results.

Procedure of refrigerant amount check operation

Step-by-step guide to perform the refrigerant amount check operation using the PCB and DIP switches.

Special attention regarding refrigerant gas leakage

Focuses on preventing and managing refrigerant gas leaks, including critical concentration limits and ventilation.

9.5.1 Precautions in the event of refrigerant leaks

Safety precautions and regulations regarding refrigerant leaks, including maximum permissible concentrations.

Maximum permitted concentration of hydrofluorcarbon (HFC)

Specifies the maximum permissible concentration of HFC gas R410A in air to prevent suffocation.

Countermeasures in the event of refrigerant leaks

Measures to take in case of refrigerant leaks, focusing on room ventilation and air circulation.

10 ELECTRICAL WIRING

10.3 CONNECTION OF THE POWER SUPPLY CIRCUITS

Illustrates how to connect power supply circuits for heat pump and heat recovery systems.

10.5 SETTING OF THE DSW SWITCHES ON PCB1

Instructions on how to set DIP switches (DSW) on PCB1 for various functions like refrigerant cycle, capacity, and test run.

DSW4: test run and service settings

Instructions for setting up test run and service functions using DSW4 switches.

DSW5: emergency operation /test run and service setting

Details settings for emergency operation, test run, and service using DSW5 switches.

10.6 FUNCTION SETTING

11 TEST RUN

11.1 PRELIMINARY CHECKS

Essential checks to be performed before starting the test run, including wiring, connections, and component settings.

11.2 CARRY OUT THE TEST RUN

Step-by-step instructions for conducting the test run, including checks for fan rotation, compressor noise, and system operation.

11.3 PC-ART REMOTE CONTROLLER

Guide for using the PC-ART remote controller to perform test run operations and check system status.

11.4 PC-ARF REMOTE CONTROLLER

Instructions for using the PC-ARF remote controller to perform test run operations and check system parameters.

11.5 TEST RUN CHECK LIST

A checklist to verify all critical parameters and operations during the test run.

12 ALARM CODES

13 CONTROL AND SAFETY DEVICES

Compressor protection

Explains the devices and combinations used for compressor protection against high pressure and cold starts.

14 BASIC TROUBLESHOOTING

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