Hitachi AIR365 Series Installation And Maintenance Manual
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Hitachi AIR365 Series Installation And Maintenance Manual

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–
INSTALLATION AND
MAINTENANCE
MANUAL
–
INVERTER-DRIVEN
AIR CONDITIONERS
SET FREE
OUTDOOR UNITS
MODELS
<BASE UNITS>
HEAT PUMP
(Standard Type)
RAS-080HNCCLW TO RAS-280HNCCLW
(High Efficiency Type)
RAS-080HNCBLW TO RAS-220HNCBLW
HEAT RECOVERY
(Standard Type)
RAS-080RNCCLW TO RAS-280RNCCLW
EN INSTALLATION AND MAINTENANCE MANUAL
Original Instructions
A16381Z84L
SERIES
For MEA and NEU
For SEA

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  • Page 1 – INSTALLATION AND MAINTENANCE MANUAL – INVERTER-DRIVEN AIR CONDITIONERS SET FREE SERIES OUTDOOR UNITS MODELS <BASE UNITS> HEAT PUMP (Standard Type) RAS-080HNCCLW TO RAS-280HNCCLW (High Efficiency Type) RAS-080HNCBLW TO RAS-220HNCBLW HEAT RECOVERY (Standard Type) RAS-080RNCCLW TO RAS-280RNCCLW For SEA For MEA and NEU EN INSTALLATION AND MAINTENANCE MANUAL Original Instructions A16381Z84L...
  • Page 2 Models Models Working Range This air conditioner has been designed for a specific Applicable Models temperature range. For optimum performance and a long life, operate this unit within the range limits listed in the table. Heat Pump < Cooling Operation > <...

  • Page 3: Important Notice

    • a policy of continuing improvement in design and For the optional decorative panel, refer to the performance in its products. As such, Hitachi-Johnson Installation and Maintenance Manual for the optional Controls Air Conditioning reserves the right to make decorative panel. (Only for 1-Way, 2-Way, and 4-Way changes at any time without prior notice.
  • Page 4 Liability does not cover defects originating from unauthorized modifications performed by a customer without the written consent of Hitachi-Johnson Controls Air Conditioning. Performing any mechanical alterations on this product without the consent of the manufacturer will render your warranty null and void.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS Models ..............................................ii IMPORTANT NOTICE .........................................iii 1. Safety Summary ..........................................1 2. Before Installation ........................................7 2.1 About This Product ......................................7 2.2 Line-Up of Outdoor Units ....................................9 2.3 Combination of Indoor Unit and Outdoor Unit ...............................12 2.4 CH-Box (Optional) for Heat Recovery System ..............................14 2.5 Piping Connection Kit (Optional) between Outdoor Units ..........................14 2.6 Multi-Kit (Optional) between Indoor Unit and Outdoor Unit .........................15 2.7 Factory-Supplied Accessories ..................................16...

  • Page 6: Safety Summary

    General Precautions so wear protective gloves. • Use only recommended/standardized replacement parts provided by Hitachi-Johnson Controls Air WARNING Conditioning. • This air conditioning system can be used by children To reduce the risk of serious injury or death, read these...
  • Page 7 1. Safety Summary • Be sure the condensate hose discharges water CAUTION properly. If connected incorrectly, leaks can occur. • Do NOT install the unit with any downward slope to To reduce the risk of minor or moderate injury, the the side of the condensate pipe.
  • Page 8 1. Safety Summary • Do NOT install the unit in the following places. Doing CAUTION so can result in an explosion, fire, deformation, corrosion, or product failure. To reduce the risk of minor or moderate injury, the ○ Explosive or flammable atmosphere following installation precautions must be followed.
  • Page 9 ○ Where the blower devices such as ceiling fan, ven- should be obtained from Hitachi-Johnson Controls Air tilating fan, etc. affect the air flow from the indoor Conditioning distributors. Use of any non-approved unit.
  • Page 10 1. Safety Summary • Electrical Precautions When installing the unit, and connecting refrigerant piping, keep all piping runs as short as possible, and make sure to securely connect the refrigerant piping before the compressor starts operating. If WARNING the refrigerant piping is not connected and the To reduce the risk of serious injury or death, the following compressor activates with the stop valve opened, the electrical precautions must be followed.
  • Page 11 After stopping operation, be sure to wait at least five cable is applied, proper bonding and termination of minutes before turning off the main power switch. the cable shield is required as per Hitachi-Johnson Otherwise, water leakage or electrical breakdown Controls Air Conditioning guidelines. Plenum and riser may result.

  • Page 12: Before Installation

    HITACHI has developed the SYSTEM FREE system with its customers always in mind. This system, which is unique in the world, allows the interconnection of the same indoor units for all the HITACHI systems. This system provides the end user with greater flexibility for installation, which means that the air-conditioning systems will integrate better with the whole of the installations that make up the building.
  • Page 13 2. Before Installation : Interchangeability is available with current R22 l : Only for Refrigerant R410A (No Interchangeability with R22) 5 : Prohibited F : Only for Refrigerant R407C (No Interchangeability with R22) Interchangeability Reason of Non-Interchangeability and Attention with R22 Measuring Instrument and Tool (ʘ: Strictly Required) R410A...

  • Page 14: Line-Up Of Outdoor Units

    2. Before Installation 2.2 Line-Up of Outdoor Units Heat Pump (Standard Type): HNCCLW 1. This outdoor unit series “HNCCLW” can build the capacity of 8 to 112 HP by combining the outdoor units of 8 to 28 HP. 2. The combinations not indicated in the table below are unavailable. <Base Unit>...
  • Page 15 2. Before Installation Heat Pump (High Efficiency Type): HNCBLW 1. This outdoor unit series “HNCBLW” can build the capacity of 8 to 88 HP by combining the outdoor units of 8 to 22 HP. 2. The combinations not indicated in the table below are unavailable. <Base Unit>...
  • Page 16 2. Before Installation Heat Recovery (Standard Type): RNCCLW 1. This outdoor unit series “RNCCLW” can build the capacity of 8 to 112 HP by combining the outdoor units of 8 to 28 HP. 2. The combinations not indicated in the table below are unavailable. <Base Unit>...

  • Page 17: Combination Of Indoor Unit And Outdoor Unit

    2. Before Installation 2.3 Combination of Indoor Unit and Outdoor Unit The following indoor units can be combined with the HITACHI SET FREE "air365" series outdoor unit. Table 2.1 Indoor Unit Type List Nominal Capacity Indoor Unit Type 0.4 0.6 0.7 0.8 0.9 1 1.1 1.3 1.5 1.6 1.8 2 2.3 2.5 3 3.3 3.6 4 4.5 5...
  • Page 18 2. Before Installation Table 2.3 System Combination - HNCBLW Recommended Range of Total Length between Min. Capacity at Max. Number of Outdoor Unit Number of Combination Each IDU and Individual Operation Connectable IDU Connectable IDU Capacity Expansion Valve Kit(*) RAS-080HNCCLW RAS-100HNCCLW RAS-120HNCCLW RAS-140HNCCLW...

  • Page 19: Box (Optional) For Heat Recovery System

    2. Before Installation 2.4 CH-Box (Optional) for Heat Recovery System • Single CH - AP 160 SSX Applicable System Branch Connectable Indoor Unit Number of Connectable Model Total Capacity Indoor Unit SSX: for Heat Recovery System (3 Pipes) CH-AP160SSX 6.0HP or less (Max. 16kW) 1 to 7 Maximum Connecatble 6.1HP to 10.0HP...

  • Page 20: Multi-Kit (Optional) Between Indoor Unit And Outdoor Unit

    2. Before Installation 2.6 Multi-Kit (Optional) between Indoor Unit and Outdoor Unit MW - NP 282 A 3 Type of Generation Applicable System A: for Heat Pump System (2 Pipes) X: for Heat Recovery System (3 Pipes) No. of Branches Corresponding Outdoor Unit and Indoor Unit Capacity Refrigerant Type...

  • Page 21: Factory-Supplied Accessories

    2. Before Installation 2.7 Factory-Supplied Accessories Check to ensure that the following accessories are packed with the outdoor unit. (Refer to NOTE on page 18.) Table 2.4 Factory-Supplied Accessories (HNCCLW) Accessory 10HP 12HP 14HP 16HP 18HP Remarks Connection for ID ɸ22.4 → ID ɸ22.4 →...
  • Page 22 2. Before Installation Table 2.5 Factory-Supplied Accessories (HNCBLW) Accessory 10HP 12HP 14HP 16HP 18HP 20HP 22HP Remarks Connection for ID ɸ22.4 → ID ɸ25.6 → Refrigerant Gas Pipe Accessory OD ɸ19.05 OD ɸ28.58 Pipe Connection for Refrigerant Liquid Pipe Cord Clamp For Fixing Power Source Wire Cable Clamp For Fixing Power Source Wire...
  • Page 23 2. Before Installation Table 2.6-2 Factory-Supplied Accessories (RNCCLW) Accessory 20HP 22HP 24HP 26HP 28HP Remarks Connection for Refrigerant Low Pressure ID ɸ28.8 → ID ɸ28.8 → Gas Pipe OD ɸ31.75 OD ɸ31.75 Connection for Accessory Refrigerant High/Low ID ɸ25.6 → Pipe Pressure Gas Pipe OD ɸ22.2...

  • Page 24: Selection Of Installation Location

    3. Selection of Installation Location 3. Selection of Installation NOTES: • Do not install the outdoor unit where there is a Location high level of oil mist, flammable gases, salty air or harmful gases such as sulphur and an acid or alkaline environment.
  • Page 25 3. Selection of Installation Location • • In the case of no walls on the front side and the rear Multiple / Serial Installation side, the service space is required as follows. (Unit: mm) ○ Front Side: Min. 500mm No limit for ○...
  • Page 26 3. Selection of Installation Location • • Multiple / Serial Installation Multiple / Serial Installation (Unit: mm) (Unit: mm) <Installation in the Same Direction> < Installation in the Same Direction > Min. 300 + h1/2 Min. 300 + h1/2 Min.10 Min.

  • Page 27: Installation Work

    4. Installation Work 4. Installation Work Plastic Bands Corrugated Paper Frame 4.1 Transportation and Handling Attach four 15mm thick corrugated corner pads Do not remove 4.1.1 Transportation as shown. corrugated paper Transport the product as close to the installation location frame and plastic bands.

  • Page 28: Handling Of Outdoor Unit

    4. Installation Work ○ Hang the unit without wooden base with 2 sling 4.1.2 Handling of Outdoor Unit belts as shown in Fig. 4.2. • Hanging Method ○ Hang the unit under packing condition with Sling Belt 2 sling belts as shown in Fig. 4.1. Corrugated Paper Frame Min.

  • Page 29: Outdoor Unit Installation

    4. Installation Work • Wooden Base Removal Method CAUTION ○ Remove the hexagon head bolt using the ratchet wrench. • Prevent the outdoor unit from contacting to the ○ Suspend the unit from the wooden base in its backrest of forklift during transportation. packing with two sling belts.
  • Page 30 4. Installation Work Provide concrete foundation as shown in the figure. 5. When installing the outdoor unit, fix the unit with anchor bolts and vibration proof mat (field- Front Side Front Side of Unit of Unit supplied). Refer to Fig. 4.4 regarding the location of fixing Correct Correct holes.

  • Page 31: Drain Water Treatment

    4. Installation Work • 4.2.2 Drain Water Treatment Standard Type (20 to 28 HP) and High Efficiency Type (18 to 22 HP) Drain water is discharged during heating and defrosting operation. (Rain water is also discharged.) Comply with the following conditions. (Unit: mm) 1.

  • Page 32: Refrigerant Piping Work

    5. Refrigerant Piping Work 5. Refrigerant Piping Work CAUTION • Ensure to connect the piping among the units in the WARNING same refrigerant cycle. • Wear leather gloves when handling the refrigerant. • Use the specified non-flammable refrigerant R410A If the refrigerant splashes directly to hands, it may to the outdoor unit in the refrigerant cycle.
  • Page 33 5. Refrigerant Piping Work • • Cautions for Refrigerant Pipe Ends Cautions for Piping Connection Work 1. Connect the indoor and the outdoor units with When installing pipe through Do not place the pipe Correct Incorrect the wall, secure a cap at the directly on the ground.
  • Page 34 5. Refrigerant Piping Work • When tightening the flare nut, use two spanners. (High Efficiency Type) (Φmm) Required Tightening Torque (JIS B8607) Outdoor Unit HP Liquid Pipe Size (Φmm) Tightening Torque (N·m) 19.05 9.52 6.35 (1/4) 14 to 18 22.2 9.52 9.52 (3/8)

  • Page 35: Flaring And Joint

    5. Refrigerant Piping Work • • Piping Thickness and Material Joint Selection Use the pipe as below. If 1/2H material is used, the flaring work cannot be The thickness of refrigerant pipe differs depending on performed. In this case, use a joint selected from the design pressure.

  • Page 36: Caution About Outdoor Unit Installation

    5. Refrigerant Piping Work 5.3 Caution about Outdoor Unit Installation <Restrictions for 4 Unit Combination> 1. For 4 outdoor unit combination, align the outdoor When the installation and piping work for the multiple units from largest capacity to smallest as A > B > C > D. outdoor units are performed, it is required that the The outdoor units “A”...

  • Page 37: Piping Connection Work

    5. Refrigerant Piping Work • 5.4 Piping Connection Work Heat Recovery Service Port Comply with the restrictions for refrigerant piping Stop Valve for Gas Valve (permissible length, height difference) in item 5.4.2 Piping (High/Low Pressure) Stop Valve for Connection Method. If not, the outdoor unit may be Liquid Valve Stop Valve for Gas Valve damaged or fail.
  • Page 38 5. Refrigerant Piping Work • The details of stop valves is as follows. CAUTION <Gas Valve> • Ensure that there is no gas inside the pipe when (Check the shape) removing the closing pipe. Otherwise, the pipe may be blown out and it may lead to injury.

  • Page 39: Piping Connection Method

    5. Refrigerant Piping Work 5.4.2 Piping Connection Method Perform the piping connection work for each outdoor unit. NOTE: • Ensure that the refrigerant pipe should be connected to the same refrigerant cycle unit. Prepare the refrigerant pipe in the field for the piping work. Refer to Fig.
  • Page 40 5. Refrigerant Piping Work • Heat Recovery Unit (mm) Low Pressure Gas Piping Connection A High / Low Pressure Gas Piping Connection B Liquid Piping Connection C Piping Cover J (Liquid Piping Connection) K (Low Pressure Gas Piping Connection) L (High / Low Pressure Gas Piping Connection) •...

  • Page 41: Piping Connection

    5. Refrigerant Piping Work • Piping Direction < Heat Recovery > Fix the pipes adequately in order to avoid vibration For Piping from Bottom Base and excessive force to the valve. Liquid Pipe Step1. The pipes can be installed in four directions Comm.
  • Page 42 5. Refrigerant Piping Work Step6. Mount the piping cover equipped with the From each Indoor Unit to Multi-Kit, use hard copper pipes Example: Recommended that bend to prevent kinking. outdoor unit after the piping connection. Hard Copper Piping will expand If not, the unit may be damaged due to snow and contract due to temperature Multi-Kit...
  • Page 43 5. Refrigerant Piping Work < HNCBLW > < RNCCLW > RAS-080HNCBLW RAS-100 to 140HNCBLW RAS-080RNCCLW RAS-100RNCCLW Stop Valve Stop Valve Stop Valve Stop Valve Stop Valve Stop Valve (High/Low Pressure Gas) (High/Low Pressure Gas) (Liquid) (Gas) (Liquid) (Gas) Stop Valve Stop Valve Stop Valve Stop Valve...
  • Page 44 5. Refrigerant Piping Work • Construction Example (Heat Pump) The following figures show the examples of 3 unit combination. Regarding the piping work for Combination Unit, refer to Installation and Maintenance Manual attached to the piping connection kit. Front Side Piping Connection Perform the piping connection between outdoor units according to this figure.
  • Page 45 5. Refrigerant Piping Work • Construction Example (Heat Pump) The following figures show the examples of 4 unit combination. Regarding the piping work for Combination Unit, refer to Installation and Maintenance Manual attached to the piping connection kit. Front Side Piping Connection Piping Connection Kit 1 Liquid Piping (Liquid)
  • Page 46 5. Refrigerant Piping Work • Construction Example (Heat Recovery) The following figures show the examples of 3 units combination. Regarding the piping work for Combination Unit, refer to “Installation and Maintenance Manual” attached to the piping connection kit. Front Side Piping Connection High/Low Pressure Piping Connection Kit 1 Accessory...
  • Page 47 5. Refrigerant Piping Work • Construction Example (Heat Recovery) The following figures show the examples of 4 units combination. Regarding the piping work for Combination Unit, refer to “Installation and Maintenance Manual” attached to the piping connection kit. Front Side Piping Connection High/Low Pressure Piping Connection Kit 1 Gas Piping...

  • Page 48: Piping Work Between Outdoor Units

    5. Refrigerant Piping Work 5.5 Piping Work between Outdoor Units 1. Piping length between piping connection kit 1 and each outdoor unit should be LA < LB < LC < 25m, The optional piping connection kit is required to combine LD - LA ≤...
  • Page 49 5. Refrigerant Piping Work 2. Place the piping connection kit lower than the 3. Install an oil trap for the gas piping when the piping outdoor unit piping connection. length between the piping connection kits, or the In case that the piping connection kit is placed outdoor unit and the piping connection kit is 2m or higher than the outdoor unit piping connection, more to prevent any accumulation of refrigerant oil.
  • Page 50 5. Refrigerant Piping Work 4. Place the outdoor unit pipe horizontally or with the 5. For servicing, in case that the pipe is placed pipe slanted downward towards the indoor unit side frontward of the outdoor unit, secure min. 500mm so that accumulation of refrigerant oil may not occur between the outdoor unit and piping connection in the pipe.
  • Page 51 5. Refrigerant Piping Work 7. When the height difference between the outdoor c. Four Outdoor Unit Combination units exceeds 100mm, there are restrictions Three outdoor units must be lower than the depending on the number of connected outdoor fourth outdoor unit. units.

  • Page 52: Piping Size Between Outdoor Units (Base Unit)

    5. Refrigerant Piping Work 5.5.1 Piping Size between Outdoor Units (Base Unit) < Heat Pump > • Standard Type: RAS-080 to 280HNCCLW • High Efficiency Type: RAS-080 to 220HNCCLW < Heat Recovery > • Standard Type: RAS-080 to 280RNCCLW Outdoor Unit Refrigerant Piping To Indoor Units •...

  • Page 53: Piping Size Between Outdoor Units (2 Unit Combination)

    5. Refrigerant Piping Work 5.5.2 Piping Size between Outdoor Units (2 Unit Combination) < Heat Pump > • Standard Type: RAS-300 to 560HNCCLW • High Efficiency Type: RAS-240 to 440HNCBLW < Heat Recovery > • Standard Type: RAS-300 to 560RNCCLW (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A...
  • Page 54 5. Refrigerant Piping Work High Efficiency Type: RAS-240 to 440HNCBLW (φmm) Model RAS-240HNCBLW RAS-260HNCBLW RAS-280HNCBLW RAS-300HNCBLW RAS-320HNCBLW RAS-340HNCBLW RAS-360HNCBLW Outdoor Unit A RAS-120HNCBLW RAS-140HNCBLW RAS-140HNCBLW RAS-160HNCBLW RAS-160HNCBLW RAS-180HNCBLW RAS-180HNCBLW Comb. Unit Outdoor Unit B RAS-120HNCBLW RAS-120HNCBLW RAS-140HNCBLW RAS-140HNCBLW RAS-160HNCBLW RAS-160HNCBLW RAS-180HNCBLW Piping Connection Kit MC-NP21SA1 31.75...

  • Page 55: Piping Size Between Outdoor Units (3 Unit Combination)

    5. Refrigerant Piping Work 5.5.3 Piping Size between Outdoor Units (3 Unit Combination) < Heat Pump > • Standard Type: RAS-580 to 840HNCCLW • High Efficiency Type: RAS-460 to 660HNCBLW < Heat Recovery > • Standard Type: RAS-580 to 840RNCCLW (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A...
  • Page 56 5. Refrigerant Piping Work High Efficiency Type: RAS-460 to 660HNCBLW (φmm) Model RAS-460HNCBLW RAS-480HNCBLW RAS-500HNCBLW RAS-520HNCBLW RAS-540HNCBLW RAS-560HNCBLW RAS-580HNCBLW Outdoor Unit A RAS-160HNCBLW RAS-160HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-200HNCBLW RAS-200HNCBLW Comb. Outdoor Unit B RAS-160HNCBLW RAS-160HNCBLW RAS-160HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-200HNCBLW Unit Outdoor Unit C RAS-140HNCBLW RAS-160HNCBLW RAS-160HNCBLW RAS-160HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW Piping Connection Kit...
  • Page 57 5. Refrigerant Piping Work Standard Type: RAS-580 to 840RNCCLW (φmm) Model RAS-580RNCCLW RAS-600RNCCLW RAS-620RNCCLW RAS-640RNCCLW RAS-660RNCCLW RAS-680RNCCLW RAS-700RNCCLW Outdoor Unit A RAS-220RNCCLW RAS-240RNCCLW RAS-220RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW Comb. Outdoor Unit B RAS-180RNCCLW RAS-180RNCCLW RAS-220RNCCLW RAS-220RNCCLW RAS-240RNCCLW RAS-220RNCCLW RAS-240RNCCLW Unit Outdoor Unit C RAS-180RNCCLW RAS-180RNCCLW RAS-180RNCCLW RAS-180RNCCLW RAS-180RNCCLW RAS-220RNCCLW RAS-220RNCCLW Piping Connection Kit...

  • Page 58: Piping Size Between Outdoor Units (4 Unit Combination)

    5. Refrigerant Piping Work 5.5.4 Piping Size between Outdoor Units (4 Unit Combination) < Heat Pump > • Standard Type: RAS-880 to H12HNCCLW • High Efficiency Type: RAS-680 to 880HNCBLW < Heat Recovery > • Standard Type: RAS-880 to H12RNCCLW (Indoor Unit on Left Side) Outdoor Unit A Outdoor Unit B...
  • Page 59 5. Refrigerant Piping Work Standard Type: RAS-860 to H12HNCCLW (φmm) Model RAS-860HNCCLW RAS-880HNCCLW RAS-900HNCCLW RAS-920HNCCLW RAS-940HNCCLW RAS-960HNCCLW RAS-980HNCCLW Outdoor Unit A RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-260HNCCLW Outdoor Unit B RAS-220HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW Combination Unit Outdoor Unit C RAS-220HNCCLW RAS-220HNCCLW RAS-240HNCCLW RAS-220HNCCLW RAS-240HNCCLW RAS-240HNCCLW RAS-240HNCCLW Outdoor Unit D RAS-180HNCCLW RAS-180HNCCLW RAS-180HNCCLW RAS-220HNCCLW RAS-220HNCCLW RAS-240HNCCLW RAS-240HNCCLW Piping Connection Kit...
  • Page 60 5. Refrigerant Piping Work High Efficiency Type: RAS-680 to 880HNCBLW (φmm) Model RAS-680HNCBLW RAS-700HNCBLW RAS-720HNCBLW RAS-740HNCBLW RAS-760HNCBLW RAS-780HNCBLW RAS-800HNCBLW Outdoor Unit A RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-200HNCBLW RAS-200HNCBLW RAS-200HNCBLW RAS-200HNCBLW Outdoor Unit B RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-200HNCBLW RAS-200HNCBLW RAS-200HNCBLW Combination Unit Outdoor Unit C RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-200HNCBLW RAS-200HNCBLW Outdoor Unit D RAS-140HNCBLW RAS-160HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-180HNCBLW RAS-200HNCBLW...
  • Page 61 5. Refrigerant Piping Work Standard Type: RAS-860 to H12RNCCLW (φmm) Model RAS-860RNCCLW RAS-880RNCCLW RAS-900RNCCLW RAS-920RNCCLW RAS-940RNCCLW RAS-960RNCCLW RAS-980RNCCLW Outdoor Unit A RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-260RNCCLW Outdoor Unit B RAS-220RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW Comb. Unit Outdoor Unit C RAS-220RNCCLW RAS-220RNCCLW RAS-240RNCCLW RAS-220RNCCLW RAS-240RNCCLW RAS-240RNCCLW RAS-240RNCCLW Outdoor Unit D...

  • Page 62: Piping Size, Piping Connection And Multi-Kit Selection (Heat Pump)

    5. Refrigerant Piping Work 5.6 Piping Size, Piping Connection and Multi-Kit < Example 1 > Line Branch (Including Main Pipe Branch) Selection (Heat Pump) For selecting the pipe sizes between the outdoor unit Outdoor Unit A and the piping connection kit , between the piping connection kits and for piping connection kit...
  • Page 63 5. Refrigerant Piping Work 4 [Pipe Diameter after First Branch] Piping Size (ɸmm) (Standard Type) Main Pipe Diameter (Base Unit or Piping Connection Kit 1 to First Branch) Diameter (φmm) Total Indoor Model [Multi-Kit of First Branch] Unit HP Gas Pipe Liquid Pipe <...

  • Page 64: Connection Between Outdoor Units, Multi-Kits And Indoor Units

    5. Refrigerant Piping Work *1. The maximum piping length of 110m is available on request. The [Pipe Diameter between Multi-Kit and Indoor Unit] following restrictions apply when the height difference between Diameter (φmm) Indoor Unit HP the outdoor units and the indoor units (the outdoor unit is higher) Gas Pipe Liquid Pipe are 50m or more.

  • Page 65: Piping Branch Restrictions (Heat Pump)

    5. Refrigerant Piping Work • 5.7 Piping Branch Restrictions (Heat Pump) Allowable total piping length may become shorter than 1000m due to the limitation of maximum In the case that the piping length L2 from the Multi-Kit at additional refrigerant amount as following table. the first branch to the farthest indoor unit is over 40m.

  • Page 66: Restrictions On Height Difference Between Indoor Units (Heat Pump)

    5. Refrigerant Piping Work (Example 2): Installation without Main Piping Branch Header branch can be used with line branch. Header branch can also be used after the second branch. Do not connect a line branch to a header branch. 1. In the case that the piping length L2 is over 40m, the size of gas and liquid pipes (b, d, f) should be CORRECT increased by one size.

  • Page 67: Piping Size, Piping Connection And Multi-Kit Selection (Heat Recovery)

    5. Refrigerant Piping Work 5.9 Piping Size, Piping Connection and Multi-Kit Selection (Heat Recovery) For selecting the pipe sizes between the outdoor unit and the piping connection kit 1 , between the piping connection kits 2 and for piping connection kit A , refer to items from 5.5.1 to 5.5.4 “Piping Size between Outdoor Units”. Upstream Side <...

  • Page 68: Connection Between Outdoor Units And Connection Kit

    5. Refrigerant Piping Work Multi-Kit after First Branch (3 Pipes Portion) Term Symbol Description Total Total Example 1 a+b+c Total length of all liquid pipes Indoor Model Piping (sum) Example 2 d+e+f+g+h Unit HP Length <6 MW-NP142X3 Actual length of the liquid pipe Example 1 Maximum from outdoor unit stop valve...
  • Page 69 5. Refrigerant Piping Work < Header Branch > Branch using Multi-Kit (MH Model) 5 Diameter of Pipe between CH Unit, CH-Box and Multi-Kit For CH Unit (φmm) For 3 Pipes Portion CH Unit Total IDU Low Pressure High/Low Liquid Total Indoor No.

  • Page 70: Connection Between Outdoor Units, Multi-Kits And Indoor Units

    5. Refrigerant Piping Work 5.9.2 Connection between Outdoor Units, Multi-Kits and Indoor Units Comply with the following when installing the unit. Indicate what installer must comply with. This is not an example of compliance. Describe the limitation shown in the drawing.
  • Page 71 5. Refrigerant Piping Work < For 4 Units Combination > Upstream Side * Maintain a straight-line distance Outdoor of 500mm or more for piping a er Unit Outdoor Outdoor Outdoor the piping connection kit. Unit Unit Unit Piping Piping Connection Kit 2 Connection Kit 1 Piping...

  • Page 72: Restrictions On Height Difference (Heat Recovery)

    5. Refrigerant Piping Work NOTES: • For 2 to 4 outdoor unit combination, the outdoor unit “A” should be connected to the piping connection kit 1. (Refer to items 5.5.2, 5.5.3 and 5.5.4 for the outdoor unit models.) The details of piping connection kit shall be referred to the installation manual of itself. •...

  • Page 73: Piping Branch Restrictions (Heat Recovery)

    5. Refrigerant Piping Work 5.11 Piping Branch Restrictions (Heat Recovery) In the case that the piping length L2 from the Multi-Kit at the first branch to the farthest indoor unit is over 40m. Indoor Unit First Branch and Main Piping Branch (Example 1): Installation with Main Piping Branch Multi-Kit CH-Box...
  • Page 74 5. Refrigerant Piping Work In case of the CH-Box (multiple branch type) is connected, Header branch cannot be connected to upstream or the following restrictions apply. downstream piping of CH-Box (multiple branch type). INCORRECT CORRECT Header Branch Upstream Downstream CH-Box First Branch (Multiple Branch Type) Multi-Kit...

  • Page 75: Electrical Wiring

    6. Electrical Wiring 6. Electrical Wiring 6.1 General Check 1. Make sure that the field-selected electrical components (main power switches, circuit breakers, wires, conduit WARNING connectors and wire terminals) have been properly selected according to the electrical data indicated in •...

  • Page 76: Electrical Wiring For Outdoor Unit

    6. Electrical Wiring 6.2 Electrical Wiring for Outdoor Unit (1) Detail of Electrical Box Terminal < 400V/50Hz, 380-415V/50Hz, 380V/60Hz > Connect the electrical wirings according to the figures on Terminal Block for the right. Power Source (TB1) 1. Connect the power supply wires to L1, L2, L3, and Screw (M8) N (for 400V, 380-415V) for the three phase power source on the terminal block TB1 and earth wire to...

  • Page 77: Electrical Wiring Connection

    6. Electrical Wiring (5) Details of Wiring Outlets inside the Electrical Box (Rubber Bush Section) CAUTION Rubber Bush (Wiring Outlet) • Tightly secure the power source wiring using a Correct Incorrect cord clamp inside the unit. NOTE: • Fix the rubber bushes with adhesive when conduit tubes to the outdoor unit are not used.
  • Page 78 6. Electrical Wiring 1. Power Source Wiring WARNING < Heat Pump > Supply the power sources to each outdoor unit and • Do not connect the earth wire to the gas pipe, indoor unit group respectively. water pipe or lightening conductor. Power source wiring is fundamentally according to ○...
  • Page 79 6. Electrical Wiring 2. The recommended wire size and main switch( are shown in Table 6.1 and 6.2. Please refer to the indoor units and CH-Box Installation Manual for other cables ( • Select the capacity of power transformer according to the maximum running current.
  • Page 80 6. Electrical Wiring 3. The recommended wiring, ELB and breaker sizes are shown in Table 6.1 and 6.2. • Standard Type: Table 6.1 Electrical Data and Recommended Wiring, Breaker Size/1 Outdoor Unit Main Switch Maximum Running Nominal Fuse Model Power Supply Nominal Nominal Current...
  • Page 81 6. Electrical Wiring • High Efficiency Type: Table 6.2 Electrical Data and Recommended Wiring, Breaker Size/1 Outdoor Unit Main Switch Maximum Running Nominal Fuse Model Power Supply Nominal Nominal Current Sensitive Current Current Current (mA) 16.1 30 or 100 RAS-080HNCBLW 19.5 30 or 100 RAS-100HNCBLW...
  • Page 82 Use 2-core cable (equivalent to following cables: VCTF, VCT, CVV, MVVS, VVR or VVF, size: 0.75 mm to 1.25 mm (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.

  • Page 83: Electrical Wiring Connection Of Indoor Unit And Outdoor Unit

    6. Electrical Wiring 6.4 Electrical Wiring Connection of Indoor Unit and Outdoor Unit 1. Connect a power supply wiring to each outdoor unit. Connect an ELB, fuse and main switch (S) to each outdoor unit. 2. Connect a power supply wiring to each indoor unit group connected to the same outdoor unit. (Max.
  • Page 84 6. Electrical Wiring < Heat Recovery > Refrigerant Group 1 (Heat Pump System) Refrigerant Group 2 (Heat Recovery System) Outdoor Unit Outdoor Unit Outdoor Unit Outdoor Unit (Main) (Sub) (Main) (Sub) L1 L2 L3 1 2 3 4 L1 L2 L3 N 1 2 3 4 L1 L2 L3 N 1 2 3 4...
  • Page 85 6. Electrical Wiring < 380-415V/50Hz, 380V/60Hz > Outdoor Unit A (Main) Outdoor Unit B (Sub) 1 2 3 4 1 2 3 4 Earth Earth : Terminal Block Main Switch : Printed Circuit Board : Field Wiring FUSE : Communication Wire (Shielded Twist Pair Cable) DC5V (Non-Pole Communication H-LINK System)

  • Page 86: Dip Switch Setting For Outdoor Unit

    6. Electrical Wiring 6.5 DIP Switch Setting for Outdoor Unit 1. TURN OFF all power sources before the setting. The switches will not work and the settings will become invalid unless the power sources are turned OFF. (However, DSW4-No.1, 2, 4, 5, 6 and push switches can be operated while power source is ON.) The mark “■”...
  • Page 87 6. Electrical Wiring 2. airCloud Tap application can be used to make installation settings except end terminal resistance. For details, refer to "Outdoor Unit Installation Setting" in the airCloud Tap application manual. NOTE: • Download aircloud Tap App via this code. NFC Touch area 3.
  • Page 88 6. Electrical Wiring 4. Setting of End Terminal Resistance • Before shipment, No. 1 pin of DSW10 (for the setting of end terminal resistance) is to the “ON” position. Setting of End Terminal Resistance DSW10 Before Shipment Cancellation ○ In the case of one refrigerant cycle in the same H-LINK or H-LINK II, set all No.
  • Page 89 6. Electrical Wiring 6. Function Setting External Input/Output & Function Setting To change the default setting, set the DIP switch (DSW4-4) to the ON position and then press and hold the push switches PSW2 (▲), PSW3(▶) and PSW5(◀) simultaneously for 3 seconds or longer to enter to the setting mode. In the setting mode, the setting type is displayed as shown below. Press the push switches PSW2 (▲) and PSW4 (▼) to display the desired setting type.

  • Page 90: Air-Tight Test And Additional Refrigerant Charge

    7. Air-Tight Test and Additional Refrigerant Charge 7. Air-Tight Test and Additional Refrigerant Charge 7.1 Air-Tight Test 1. Check to ensure that spindles of the stop valves for gas and liquid pipes are closed completely before air-tight test. Check the cap shape and tighten according to the torque specification as shown in the table below. 2.
  • Page 91 7. Air-Tight Test and Additional Refrigerant Charge < Air-Tight Test Method > NOTICE 1. Connect the manifold gauge to the check joints of the liquid line and the gas line stop valves using • If the gap is not covered, the unit may be damaged if charging hoses with a vacuum pump or a nitrogen snow, rain water or animals enter the unit.

  • Page 92: Vacuuming

    7. Air-Tight Test and Additional Refrigerant Charge 7.2 Vacuuming < Connecting > Connect a manifold gauge, vacuum gauge and vacuum pump to the check joints (Gas Stop Valve and Liquid Stop Valve). < Basic Method > If the penetration of moisture is suspected, perform “Triple Evacuation Method”...

  • Page 93: Additional Refrigerant Charge Calculation

    7. Air-Tight Test and Additional Refrigerant Charge 7.3 Additional Refrigerant Charge Calculation Table 7.1 Additional Refrigerant Charge Calculation < Heat Pump > Additional Refrigerant Charge Calculation Although refrigerant has been charged into this unit in advance, additional refrigerant charge is required according to piping length. Determine the additional refrigerant quantity according to the following procedure, and charge the system with it.
  • Page 94 7. Air-Tight Test and Additional Refrigerant Charge < Heat Recovery > Additional Refrigerant Charge Calculation Although refrigerant has been charged into this unit in advance, additional refrigerant charge is required according to piping length. Determine the additional refrigerant quantity according to the following procedure, and charge the system with it. Record the additional refrigerant quantity to facilitate maintenance and servicing activities thereafter.

  • Page 95: Charging Work

    7. Air-Tight Test and Additional Refrigerant Charge 7.4 Charging Work NOTE: • When the refrigerant is recovered or charged because 1. The additional refrigerant charge is required according of repairing, operating or adjusting the unit, record the to the total piping length. Refer to Table 7.1. refrigerant quantity again.
  • Page 96 7. Air-Tight Test and Additional Refrigerant Charge b. Operate the compressor in the cooling mode and NOTES: • charge the additional refrigerant from the check Charge the correct refrigerant quantity according to joint of the liquid stop valve (acceptable error must Table 7.1.

  • Page 97: Test Run

    7. Air-Tight Test and Additional Refrigerant Charge 8. Test Run Range below the limit concentration of 0.42 kg/m (Countermeasures Not Needed) Test run should be performed according to item 8.2. And use Table 8.1 for recording test run. Range above the limit concentration of 0.42 kg/m WARNING (Countermeasures Needed)

  • Page 98: Test Run

    8. Test Run 4. Check to ensure that the switch of the main power NOTICE source has been ON for more than 12 hours, to warm the compressor oil by the oil heater. • Confirm that field-supplied electrical components SET FREE "air365" series outdoor unit does not (main switch fuse, fuse-free breaker, earth leakage operate for at most 4 hours after power supply breakers, wires, conduit connectors and wire...
  • Page 99 8. Test Run Step4. Press “ ” or “ ”, select “LOUV.” and select “ ” (auto Test Run Setting: 2 units swing) by pressing “ ” or “ ”. MODE COOL The auto swing operation will start. Check the SPEED AUTO operation sound of the louvers.
  • Page 100 MODEL: SERIAL. No. COMPRESSOR MFG. No. 8. Test Run CUSTOMER'S NAME AND ADDRESS: DATE: Table 8.1 Test Run and Maintenance Record 1. Is the rotation direction of the indoor fan correct? MODEL: SERIAL No. COMPRESSOR MFG. No. 2. Is the rotation direction of the outdoor fan correct? CUSTOMER'S NAME AND ADDRESS: DATE: 3.
  • Page 101 8. Test Run Table 8.2 Alarm Code Code Category Content of Abnormality Leading Cause Activation of Float Switch (High Water Level in Drain Pan, Indoor Unit Activation of Protection Device (Float Switch) Abnormality of Drain Pipe, Float Switch, or Drain Pan) Activation of Protection Device Activation of PSH (Pipe Clogging, Excessive Refrigerant, Inert Outdoor Unit...
  • Page 102 8. Test Run Connection of CH-Box to Heat Pump System, Incorrect DSW Settings of Outdoor Unit for CH- Disconnection of CH-Box to Heat Recovery System CH Unit(Generation 1 model) and CH-Box(Generation 2 model) are used in the same system together. Incorrect Capacity Setting of Outdoor Unit and Incorrect Capacity Setting of Outdoor Unit and Indoor Unit, Indoor Unit...

  • Page 103: Safety And Control Device Setting

    9. Safety and Control Device Setting 9. Safety and Control Device Setting Compressor Protection The compressor is protected by the following devices and their combinations. 1. High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting.
  • Page 104 40.8 x 3 40.8 x 3 40.8 x 3 CCP Timer Non-Adjustable Setting Time min. For DC Fan Module Fuse Capacity 3N~, 400V, 50Hz 3N~, 380-415V, 50Hz 3N~, 380V, 60Hz © 2022 Hitachi-Johnson Controls Air Conditioning, Inc. A16381Z84L-rev.1, 2022 Printed in China...

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