Hitachi AirCore 700 Installation & Maintenance Manual
Single split inverter series outdoor units
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Also See for AirCore 700:
- Operation installation maintenance manual (40 pages) ,
- Operation installation maintenance manual (32 pages) ,
- Installation & maintenance manual (52 pages)
Table of Contents
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INSTALLATION
& MAINTENANCE
MANUAL
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SINGLE SPLIT
INVERTER SERIES
OUTDOOR UNITS
MODELS
PAS-2.0UFASNQ1
PAS-2.5UFASNQ1
PAS-3.0UFASNQ1
PAS-4.0UFASNQ1
PAS-4.0UFASMQ1
PAS-5.0UFASNQ1
EN INSTALLATION AND MAINTENANCE MANUAL
Original Instructions
Scan the code to get the electronic manual.
P02171Q
PAS-5.0UFASMQ1
PAS-6.0UFASNQ1
PAS-6.0UFASMQ1
PAS-6.5UFASNQ1
PAS-6.5UFASMQ1
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Table of Contents
Related Manuals for Hitachi AirCore 700
Summary of Contents for Hitachi AirCore 700
- Page 1 – INSTALLATION & MAINTENANCE MANUAL – SINGLE SPLIT INVERTER SERIES OUTDOOR UNITS MODELS PAS-2.0UFASNQ1 PAS-5.0UFASMQ1 PAS-6.0UFASNQ1 PAS-2.5UFASNQ1 PAS-6.0UFASMQ1 PAS-3.0UFASNQ1 PAS-4.0UFASNQ1 PAS-6.5UFASNQ1 PAS-4.0UFASMQ1 PAS-6.5UFASMQ1 PAS-5.0UFASNQ1 EN INSTALLATION AND MAINTENANCE MANUAL Original Instructions Scan the code to get the electronic manual. P02171Q...
- Page 3 IMPORTANT NOTICE • Hitachi pursues a policy of continuous 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. •...
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Page 4: Table Of Contents
Table of Contents 1. Safety Summary .............................1 2. Refrigerant Flow Diagram ..........................11 3. Electrical Wiring Diagram ..........................11 4. Installation Instructions ..........................12 4.1 Transportation and Handling before Installation .................12 4.2 Installation Locations Selection ......................12 4.3 Drain Connection and Drain Hose Installation ..................13 4.4 Outdoor Unit Installation ........................13 4.5 Refrigerant Piping ..........................14 4.6 Wiring ..............................17... -
Page 5: Safety Summary
1. Safety Summary 1. Safety Summary The appliance uses R32 flammable refrigerant. This appliance uses power supply: 220-240V ~, 50Hz (2.0/2.5/3.0/4.0/5.0/6.0/6.5HP) 380-415V 3N~, 50Hz (4.0/5.0/6.0/6.5HP) Read these Safety summary carefully before installing an air conditioner or heat pump. After completing the installation, make sure that the unit operates properly during the startup operation. - Page 6 1. Safety Summary WARNING • Assure that the maximum operating pressure is checked when connecting to Indoor UNIT. • This unit shall only be connected to an appliance suitable for the same refrigerant and must only be connected to the appliance that have been confirmed as complying to corresponding requirements of IEC 60335-1 and IEC 60335-2-40.
- Page 7 1. Safety Summary Precautions for R32 This air conditioner uses R32 flammable refrigerant. Air conditioner with R32 refrigerant, if not be treated carefully, may cause serious harm to the human body or surrounding things. Please read the following instructions carefully before installing, using and maintaining. •...
- Page 8 1. Safety Summary • That after completion of field piping for split systems, the field pipework shall be pressure tested with an inert gas and then vacuum tested prior to refrigerant charging, according to the following requirements: ○ The minimum test pressure for the low side of the system shall be the low side design pressure and the minimum test pressure for the high side of the system shall be the high side design pressure, unless the high side of the system, cannot be isolated from the low side of the system in which case the entire system shall be pressure tested to the low side design pressure.
- Page 9 1. Safety Summary • The maximum number of pieces of equipment or the configuration of the equipment permitted to be transported together will be determined by the applicable local transport regulations. • Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or vapour being present while the work is being performed.
- Page 10 1. Safety Summary connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include: ○...
- Page 11 1. Safety Summary • Ensure that the outlet of the vacuum pump is not close to any potential ignition sources and that ventilation is available. • In addition to conventional charging procedures, the following requirements shall be followed. ○ Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimise the amount of refrigerant contained in them.
- Page 12 1. Safety Summary pressure-relief valve and associated shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. • The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of the flammable refrigerant.
- Page 13 1. Safety Summary • Install drain piping to ensure proper drainage. Improper drain piping may result in water leakage and property damage. • Insulate piping to prevent condensation. • Be careful when transporting the product. • Take adequate measures to prevent the outdoor unit from being used as a shelter by small animals. Small animals making contact with electrical parts can cause malfunctions, smoke, or fire.
- Page 14 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.
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Page 15: Refrigerant Flow Diagram
2. Refrigerant Flow Diagram 2. Refrigerant Flow Diagram INDOOR UNIT OUTDOOR UNIT Gas piping Compressor Service valve with check joint 4-way valve Liquid Service valve piping Heating cycle Cooling cycle Model:PAS-2.0UFASNQ1/PAS-2.5UFASNQ1/PAS-3.0UFASNQ1 INDOOR UNIT Gas piping OUTDOOR UNIT Compressor Service valve with check joint Accumulator... -
Page 16: Installation Instructions
4. Installation Instructions 4. Installation Instructions 4.1 Transportation and Handling before Installation Transport the product as close to the installation location as practical before unpacking. • • Handling Method Handling When handling the unit, ensure a balance of If the product has no package to move, please the unit, check safety and lift it up smoothly. -
Page 17: Drain Connection And Drain Hose Installation
4. Installation Instructions 4.3 Drain Connection and Drain Hose Installation Install Drain Connection and Drain Hose • The condensate water may drain from the outdoor unit when the unit operates in heating mode. In order to avoid disturbing neighbors and protect the environment, it is necessary to install a drain connection and a drain hose to drain out the condensate water. -
Page 18: Refrigerant Piping
4. Installation Instructions 4.5 Refrigerant Piping 1. Piping requirement Outer diameter of pipe (mm) Model Liquid 2.0/2.5/3.0HP 12.7 6.35 4.0/5.0/6.0/6.5HP 15.88 9.52 • The shorter the refrigerant piping is, the better the performance will be. So the connecting pipe should be as short as possible. Refrigerant piping between indoor unit and outdoor unit Pipe length L Indoor unit... - Page 19 4. Installation Instructions 3. Processing of refrigerant piping • Pipe cutting Cut the copper pipe correctly with a pipe cutter. (Unit: mm) • Burrs removal Diameter º º Completely remove all burrs from the cross φd -0.4 section of the pipe. 6.35 Put the end of the copper pipe downward to ØA...
- Page 20 4. Installation Instructions Fix the end of piping tape with adhesive tape. Tightening torque for When piping has to be arranged through above ceiling, Insulation Clamp closet or area where temperature and humidity are high, use wind additional commercially sold insulation for Refrigerant pipe prevention of condensation.
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Page 21: Wiring
4. Installation Instructions • Additional refrigerant charge Contains fluorinate greenhouse gases. The unit has been filled with refrigerant.Please calculate Refrigerant additional charge according to “Piping Requirement”. After finishing vacuum pump procedures, first exhaust air from (A) GWP charge hose, then open valves, charge refrigerant through gas stop valve. - Page 22 4. Installation Instructions • Check to ensure that the voltage of power supply is within 10% of nominal voltage and earth phase is contained in the power supply wires. If not, electrical parts will be damaged. • Check to ensure that the capacity of power supply is enough. If not, the compressor will not be able to operate because of abnormal voltage drop at starting.
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Page 23: Test Run
4. Installation Instructions <Attentions when Connecting the Power Supply Wiring> • When connecting the terminal block using stranded Covered part Stranded wire wire, make sure to use the round crimp-style terminal for Round crimp- style terminal connection to the power supply terminal block. Place the round crimp-style terminals on the wires up to the covered part and secure them in place. -
Page 24: Connection Between Demand Response Enabling Device (Dred) And Outdoor Unit
5. Connection between Demand Response Enabling Device (DRED) and Outdoor Unit 5. Connection between Demand Response Enabling Device (DRED) and Outdoor Unit This function is supported by Australian Standard “Demand response capabilities and supporting technologies for electrical products” • AS/NZS 4755.3.1:2014; or •... - Page 25 5. Connection between Demand Response Enabling Device (DRED) and Outdoor Unit When the input terminals DRM2 and SC are short-circuited, the compressor is limited the load to 50%. When the input terminals DRM3 and SC are short-circuited, the compressor is limited the load to 75%. Outdoor Unit DRED (Field supplied)
- Page 26 Memo...
- Page 27 Memo...
- Page 28 Washer ( only in 4.0~6.5HP units) 1189719 Hitachi-Johnson Controls Air Conditioning, Inc. Add: 1-16-1, Kaigan Minato-ku, Tokyo, Japan Specifications in this catalogue are subject to change without notice, in order that Hitachi-Johnson Controls may bring the latest innovations to customers. 2023.10 V02 Printed in China...