"SET-FREE" FXG. Technical Catalog

Transcription

1 "SET-FREE" FXG Technical Catalog Outdoor Units: 8 & 10 HP Indoor Units Type: In-the-Ceiling 4-Way Cassette 2-Way Cassette Wall Floor Floor Concealed Ceiling

2 Specifications in this catalogue are subject to change without notice in order that HITACHI may bring the latest innovations to their customers Whilst every effort is made to ensure that all dimensions and specifications are correct, any printers' errors not rectified are outside the control of HITACHI, who cannot be held responsible for same

3 IMPORTANT NOTICE 1 IMPORTANT NOTICE SAFETY SUMMARY n HITACHI pursues a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary specifications without notice. n HITACHI cannot anticipate every possible circumstance that might involve a potential hazard. n These heat pump air conditioners are designed for standard air conditioning only. Do not use these heat pump air conditioners for other purposes such as drying clothes, refrigerating foods or for any other cooling or heating process. n No part of this catalog may be reproduced without written permission. n Signal words (DANGER, WARNING and CAUTION) are used to identify levels of hazard seriousness. Definitions for identifying hazard levels are provided below with their respective signal words. % DANGER: Immediate hazards which WILL result in severe personal injury or death. & CAUTION: Hazards or unsafe practices which COULD result in severe personal injury or death. $ WARNING: Hazards or unsafe practices which COULD result in minor personal injury or product or property damage. NOTE: Useful information for operation and/or maintenance. It is assumed that these heat pump air conditioners will be operated and serviced by English speaking people. If this is not the case, the customer should add safety, caution and operating signs in the native language. If you have any questions, contact your distributor or dealer of HITACHI. This manual gives a common description and information for this heat pump air conditioner which you operate as well as for other models. These heat pump air conditioners have been designed for the following temperatures. Operate the heat pump air conditioner within this range. Temperature Range ( C): Maximum Minimum Cooling Indoor 30 DB / 25 WB 21.5 DB / 15 WB Operation Outdoor 43 DB -5 DB *1) Heating Indoor 27 DB 15 DB Operation outdoor 15 WB -15 WB *2) *1): 10DB ~ -5DB (Operation Control Range) *2): -10WB ~ -15WB (Operation Control Range) DB: Dry Bulb, WB: Wet Bulb % DANGER: ΠUse refrigerant R407C in the refrigerant cycle. Do not charge oxygen, acetylene or other flammable and poisonous gases into the refrigerant cycle when performing a leakage test or an air-tight test. These types of gases are extremely dangerous and can cause an explosion. It is recommended that compressed air, nitrogen or refrigerant be used for these types of tests. ΠDo not pour water into the indoor unit, outdoor unit or CH unit. These products are equipped with electrical parts. If poured, it will cause a serious electrical shock. ΠDo not touch or adjust safety devices inside the indoor or outdoor units. If these devices are touched or readjusted, it may cause a serious accident. ΠDo not open the service cover or access panel for the indoor or outdoor units without turning OFF the main power supply. ΠRefrigerant leakage can cause difficulty with breathing due to insufficient air. Turn OFF the main switch, put out fire at once and contact your service contractor, if refrigerant leakage occurs. ΠThe installer and system specialist shall secure safety against leakage according to local regulations or standards. $ WARNING: ΠDo not use any sprays such as insecticide, lacquer, hair spray or other flammable gases within approximately one (1) meter from the system. ΠIf circuit breaker or fuse is often activated, stop the system and contact your service contractor. ΠDo not perform installation work, refrigerant piping work, drain piping and electrical wiring connection without referring to our installation manual. ΠCheck that the ground wire is securely connected. Connect a fuse of specified capacity. Do not put any foreign material on the unit or inside the unit. Make sure that the outdoor unit is not covered with snow or ice, before operation. & CAUTION: ΠDo not install the indoor unit, outdoor unit, CH unit, remote control switch and cable within approximately 3 meters from strong electromagnetic wave radiators such as medical equipment. ΠSupply electrical power to the system to energize the oil heater for 12 hours before start-up after a long shutdown. NOTE: ΠIt is recommended that the room be ventilated every 3 to 4 hours. ΠThe heating capacity of the heat pump unit declines according to the outdoor air temperature. Therefore, it is recommended that auxiliary heating equipment be used in the field when the unit is installed in a low temperature region.

4 2 IMPORTANT NOTICE REFERENCE TO FSG Series This manual is intended as an extension of Technical Catalogue for FSG Series. It contains specific data related to Cooling / Heating Changeover Unit (CH) and Outdoor Units RAS-8FXG and RAS-10FXG. Whenever you see this mark: Details for reference Please, refer to Technical Catalogue for FSG Series.

5 CONTENTS 1 0.CONTENTS PART I TECHNICAL DATA 1. FEATURES 1.1. System Features H-LINK System Features on Indoor Units and Outdoor Units * 1.4. Name of parts 1-11 * (See manual for FSG Series) 2 GENERAL DATA 2.1 General Data for Indoor Units * 2.2 General Data for Outdoors Units Component Data Component Detailed Data 2-3 * (See manual for FSG Series) 3 DIMENSIONAL DATA 3.1 Indoor Unit * 3.2 CH Unit Outdoor Unit 3-2 * (See manual for FSG Series) 4 SELECTION DATA 4.1 Operation Space Center of Gravity Cooling/Heating Performance at Various Combinations Outdoor Unit Capacity with Total Horsepower of Combined Indoor Unit * 4.5 Capacity Characteristic Curves of Outdoor Units Cooling Capacity Table of 100% Combination Heating Capacity Table of 100% Combination Correction Factor According to Piping Length Sensible Heat Factor (SHF) * 4.10 Correction factor for defrosting operation Fan performance * * (See manual for FSG Series) 5. SOUND DATA Indoor Unit * Outdoor Unit 5-1 * (See manual for FSG Series) 6. WORKING RANGE 6.1. Power supply ELECTRICAL DATA Indoor Unit * Outdoor Unit 7-1 * (See manual for FSG Series) 8 ELECTRICAL WIRING DIAGRAMS For RAS-8FXG and RAS-10FXG 8-1 For CH-4.0GE and CH-6.5GE CONTROL SYSTEM 9.1 Refrigerant Cycle (Example: RAS-10FXG) Device Control System Standard Operation Sequence Gas Bypass Control Protection and Safety Control Safety and Control Device Setting REMOTE CONTROLLERS OPERATION 10.1 Liquid Crystal Remote Control Switch (PC-2H2) * 10.2 Optional Remote Controller (PC-5H) * 10.3 Optional Wireless remote * 10.4 Optional 7-DAY TIMER (PSC-3T) * 10.5 Optional central Station (PSC-3S1) * 10.6 Optional Accessories for RCS * Remote Control Cable (PRC-10E~PRC-30E) * 3P Connector Cable (PCC-1) * * (See manual for FSG Series) PART II INSTALLATION DATA 11. UNITS INSTALLATION General Check * RPI (In-the-Ceiling) * RCI (4-Way Cassette Type) * RCD (2-Way Cassette Type) * RPK (Wall Type) * RPF (Floor Type) / RPFI (Floor Concealed Type) * RPC (Ceiling Type) * RAS (Outdoor Unit) Transportation and Installation of CH Unit Installation of Optional Air Panel * Installation Instruction for Drain-Up Kit 11-7 * (See manual for FSG Series) 12. REFRIGERANT PIPING AND REFRIGERANT CHARGE Piping System and Multi-Kit Refrigerant Piping Work for Indoor Unit * 12.3 Refrigerant piping Work for Outdoor Unit Refrigerant piping Work for CH Unit Caution on Refrigerant Leakage Special Attention Regarding new Refrigerant Drain piping * * (See manual for FSG Series) 13. DRAIN PIPING General * RPI (In-the-Ceiling Type) * RCI (4-Way Cassette Type) * RCD (2-Way Cassette Type) * RPK (Wall Type) * RPF and RPFI (Floor Type and Floor Concealed Type) * RPC (Ceiling Type) * Outdoor Unit Drain-Kit (DBS-26) * * (See manual for FSG Series) 14. ELECTRICAL WIRING Common Wiring Electrical Wiring for Indoor Unit * Electrical wiring for outdoor unit Electrical wiring for CH unit 14-8 * (See manual for FSG Series)

6 2 CONTENTS 15. INSTALLATION OF OPTIONAL REMOTE CONTROLLER Installation of Remote Control Switch <PC-2H2> * Wiring System for Optional Remote Control Switch (PC-2H2) * Installation of Remote Control Switch (Core- Function) <PC-5H> * Installation of 7-day Timer <PSC-3T> * Wiring system for optional 7-day timer (PSC-3T) * Installation of central station <psc-3s1> * Wiring System for Optional Central Station (PSC-3S1) * Installation of Receiver Kit <PC-RLH4> * * (See manual for FSG Series) 16. TEST RUN Checking Before Test Run Test run procedure by remote control switch Test run procedure by wireless remote control switch (PC-LH3) Test run procedure by remote control switch <core-function> (PC-5H) Test run from outdoor unit side Checking of the refrigerant quantity for FXG system TROUBLESHOOTING Initial Troubleshooting Troubleshooting by Alarm Code Troubleshooting in Check mode Troubleshooting by 7-segment display Protection control code on 7-segment display Self checking of PCB s using Remote Control Switch Self Checking of Remote Control Switch * * (See manual for FSG Series) 18. MAINTENANCE Regular Inspection * Filter Cleaning * * (See manual for FSG Series) 19. MISCELLANEOUS NOTES Special Notes Attention for Set-Free Series STANDARD SPECIFICATIONS MODELS CODIFICATION Important note: Please check, according to the model name, which is your air conditioner type and how it is abbreviated and referred to in this technical catalogue. In-the ceiling type 4-way cassette type 2-way cassette type INDOOR UNITS Wall type Floor type Concealed type Ceiling type 53,)6*( 53,)6*( 5&,)6*( 5&')6* 53.)6* 53))6*( 53),)6* 53,)6*( 5&,)6*( 5&')6* 53.)6* 53))6*( 53),)6* 53,)6*( 5&,)6*( 5&')6* 53.)6* 53&)6*( 53,)6*( 5&,)6*( 5&')6* 53.)6* 53&)6*( 53,)6*( 5&,)6*( 5&')6* 53&)6*( 53,)6*( 5&,)6*( 5&')6* 53&)6*( 53,)6*( 5&,)6*( 5&')6* 53&)6*( 287'22581,76 );*6HULHV 5$6);* 5$6);*

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9 1 FEATURES 1 1. FEATURES 1.1.SYSTEM FEATURES HI-MULTI SET-FREE FOR SMALL/MEDIUM OFFICE BUILDINGS HITACHI proudly introduces the NEW FXG series of the highly-efficient and reliable air conditioning system, HI-MULTI SET-FREE providing simultaneous Cooling and Heating operation independently and providing comfortable air with the power saving operation for small and medium office buildings. Recently, increased numbers of buildings are requiring Intelligent facilities - communication networks, office automation, including a comfortable environment. Particularly, comfortable space is required all the day through the year in office buildings. This multi-split system air conditioner, HI-MULTI SET-FREE can meet these requirements. The proven combination of the scroll compressor and the inverter provides the best air conditioning for small / medium office buildings FXG Series - Uses of the HFC series new R407C Refrigerant HITACHI has developed and introduced the new SET-FREE FXG series to meet the global needs to help protect the Earth s environment by using non-ozone depleting refrigerant, R407C as HITACHI s standard series. Various Indoor Units and Combinations The common Indoor Units for FXG; 35 Indoor Units in 7 types as shown below, can be connected to the new FXG series Outdoor units to meet various building requirements. (0.8HP through 5.0HP) n Code meaning Unit Type (Indoor) Horse Power (HP) HI-MULTI Set-free H-Link System Horse Power (HP) Unit Type (Outdoor) HI-MULTI Set-free Three Pipes Refrigerant R407C Made in: Malaysia Europe (blank) Japan NOTE: Select the indoor units and outdoor unit so as the total indoor horsepower is near to the outdoor horsepower Indoor Unit Nominal Horsepower (HP) Model Type In-the-Ceiling RPI á á á á á á á á 4-Way Cassette RCI á á á á á á á 2-Way Cassette RCD á á á á á á á Wall RPK á á á á2.3 Floor RPF á á Floor Concealed RPFI á á Ceiling RPC á á á á á Note: Regarding the standard and optional dip switch setting, refer to Setting of Dip Switches for Indoor Unit in chapter 14 page 5 á = Available Able to Connect One Outdoor Unit with up to 12 Indoor Units Utilizing inverter control, a wide range of operation capacity control is available. A maximum total combination horsepower of 130% and a minimum total combination horsepower of 50% can be chosen by a combination of indoor units when compared with the nominal outdoor unit capacity. Therefore, the new system can meet individual air conditioning requirements in most office buildings. Outdoor Unit Model Minimum Combination Horsepower (HP) Maximum Combination Horsepower (HP) Indoor Unit Minimum Combination of Indoor Unit Maximum Combination of Indoor Unit Minimum Individual Operation Horsepower (HP) RAS-8FXG RAS-10FXG CH Unit CH-4.0GE 0.8 Less than * 0.8 Model CH-6.5GE 0.8 Less than * 0.8 * Simultaneous operation of cooling (dry) and heating is not available.

10 1 2 FEATURES Great Power Saving Due to Heat Recovery System Independent cooling or Heating Operation The FXG system consists of multiple Indoor Units, multi-kits, CH unit and one Outdoor Unit. According to head load conditions, refrigerant flow is changed by activation of the CH units, and cooling operation is available independently. Therefore, this system offers great power saving due to a heat recovery system when heating load and cooling load are balanced CH Unit HEATING ALL A: Accumulator C: Compressor R: Receiver Gas (High) Gas (Low) Liquid Outdoor Unit Indoor Unit Cooling Cooling Cooling Heating CH Unit to Change Refrigerant Cycle MAINLY COOLING EVENLY COOLING AND HEATING A: Accumulator C: Compressor R: Receiver Gas (High) Gas (Low) Liquid A: Accumulator C: Compressor R: Receiver Gas (High) Gas (Low) Liquid CH Unit CH Unit Outdoor Unit Indoor Unit Outdoor Unit Indoor Unit Cooling Cooling Cooling Heating Cooling Cooling Heating Heating MAINLY HEATING COOLING ALL A: Accumulator C: Compressor R: Receiver Gas (High) Gas (Low) Liquid A: Accumulator C: Compressor R: Receiver Gas (High) Gas (Low) Liquid CH Unit CH Unit Outdoor Unit Indoor Unit Outdoor Unit Indoor Unit Heating Heating Heating Cooling Cooling Cooling Cooling Cooling Note: The Indoor Unit connected to the same CH unit can be operated and stopped simultaneously, however, can not be operated in simultaneous operation of cooling and heating

11 1 FEATURES H-LINK SYSTEM The new H-LINK wiring system requires only two transmission wires connecting each CH unit and outdoor unit for up to 16 refrigerant cycles, and connecting wires for all indoor units and all outdoor units in series. Setting of End Terminal Resistance DSW10 Before Shipment Cancellation The total wiring length is remarkably reduced. Only one connection is required for the wiring between the indoor unit and outdoor unit. Easy wiring connection to the central controllers Example of H-LINK System Outdoor Unit Transmission Wires Refrigerant Piping New transmission system A non-polar 2-wire cable is applied for the transmission wires connecting indoor units and outdoor unit. Miswiring by inverting connections 1 and 2 is eliminated. Wide Operation Range This unit has been designed for cooling operation under low ambient temperatures down to -5 ºC. This feature enables cooling to be obtained even in winter on buildings with high internal heat gains due to lighting, people and machines, particularly in areas such as shops, lecture rooms, data processing areas etc. And the heating operation under low ambient temperature down to -15 ºC can be also performed. Only for pull-down Operation Specifications: Transmission Wire: Polarity of Transmission Wire: Maximum Outdoor Units Maximum Indoor Units Maximum Wiring Length: Recommended Cable: Voltage: Indoor Units : One Refrigerant Cycle 2 - Wire Non - Polar Wire 16 Units per system 12 Units per cycle and 128 Units per H-LINK System Total m (including CS-NET) Twist Pair Cable with Shield, over 0,75 mm² (Equivalent to KPEV-S) DC5V Note: In case of applying H-LINK system, The setting of dip switches is required (Refer to chapter 14 for setting). If the dip switches are not set or set incorrectly, the alarm may occur due to the transmission failure. Setting of End Terminal Resistance Before shipment, set No.1 pin of DSW10 at the "ON" side. In the Case that the outdoor units quantity in the same H-link is 2 or more, set No.1 pin of DSW10 at the "OFF" side from the 2 nd unit. If only one outdoor unit is used, no setting is required. Outdoor Air Dry Bulb Temperature ( C DB) Indoor suction air Wet Bulb Temperature ( C WB) Outdoor Air Wet Bulb Temperature ( C WB) : Operation Control Range Low Sound by PWM (Pulse Width Modulation) Control Fan motor control by PWM (Pulse Width Modulation) has realized low electromagnetic sounds. The voltage applied to the fan motor is controlled by chopping (ON/OFF) the power supply voltage at a high frequency of 20kHz. Therefore, the wave pattern is almost sinusoidal, the torque fluctuation is very smooth and a remarkable low level of electromagnetic noise is achieved. PWM Ware Pattern Indoor suction air Dry Bulb Temperature ( C DB) Power supply Pattern Effective Voltage 20 khz (20,000 times per second)

12 1 4 FEATURES Basic Circuit of PWM Grade-up on Flexibility and Comfortability Power supply Chopper Part Regeneration Part Motor Able to Establish Air Conditioning Systems for Various Requirements A maximum piping length of 100 meters and maximum lift of 50 meters between the indoor units and outdoor unit are applicable, and a maximum lift of 15 meters, which is almost equivalent to a 4 floor height, between indoor units is available Piping System for FXG Series Lower Sound Operation during Night Time Through computer simulation of fluid turbulence which is the main source of unwanted noise, and by visual observation of fluid flow, operation sound has been thoroughly analyzed. By improvement of the cabinet structure and fan shape, and by the adoption of a new material and inverter, operation sound has been reduced. System Example 1: Line Branch System CH Unit Low Operation Sound Resulting from New Fan Shape and Propeller Fan Material The most appropriate fan shape for smooth air flow has been researched. Consequently, a new fan shape has been developed to minimize air turbulence around the propeller fan. Also, a new material of MRP (Mica polypropylene) which minimizes vibration characteristics against vibration sound has been adopted, and a laminated surface prevents turbulent flow. This combination has resulted in a low operation sound which was almost impossible in the previous units. Operation in the same mode System Example 2: Header Branch System Propeller Fan CH Unit Low Sound Operation by Low Noise Fan Motor In order to minimize electromagnetic sounds, research was thoroughly performed on the materials to be used for the assembled fan motor. Consequently, aluminium die-casting was selected and a low sound operation has been achieved without decreasing the operation performance. Also, a non-resonance suspension structure has been adopted to support the fan motor. Due to this structure, the vibration sound has been minimized. System Example 3: Combination Branch System High Durability The twin scroll compressors with the outer oil supply system and the oil separator are applied as same as FSG series. Therefore, the oil is directly supplied to the compressors and the reliability is increased moreover. CH Unit Operation in the same mode

13 1 FEATURES 5 Greatly Minimized Piping Work by HITACHI "Uni-Piping System" The new "Uni-Piping" where the same size pipe as the main refrigerant pipe can be utilized, has been developed. Due to this single size, piping work has been greatly simplified. Also, from the point of design, complicated piping selection has been minimized. Only two refrigerant pipes in the refrigeration cycle are required. Various piping connection sets are also available according to field requirements. Due to these improvements, various problems during installation have been solved. The new HITACHI "Uni-Piping System" is the epoch-making system which saves installation time and labour. The "Down-Size Piping System" is not available for FXG system. (The "Down-Size Piping System" is available only for FSG system.) Œ Header Branch Outdoor Unit CH Unit See Table 3 Indoor Unit Œ Line Branch 1 (Uni-Piping) Combination of CH Unit and Indoor Unit Outdoor Unit See Table 1 Table 3: Applicable Model Low Gas / High Gas / Liquid Piping Size Ø RAS-8FXG 25.4 (22.2) / / 12.7 RAS-10FXG 28.6 / / 12.7 Model of Multi-Kit 2~8 Branches E-88XE3 Table 1: CH Unit Applicable Model Indoor Unit (In the same operation mode) Low Gas / High Gas / Liquid Piping Size Ø a ~ d Indoor Unit See Table 2 Model of Multi-Kit A ~ D RAS-8FXG 25.4 (22.2) / / 12.7 E-82XME RAS-10FXG 28.6 / / 12.7 E-102XME Table 2: CH Unit Gas / Liquid Piping Size Ø Model of Multi-Kit Model e ~ f E ~ F CH-4.0GE / 9.53 E-42ME CH-6.5GE / 9.53 E-52ME Table 4. CH Unit~Indoor Unit: Indoor Unit Capacity Pipe Size («mm) (Gas / Liquid) *2 Max. Length of Liquid Pipe *3 0.8 and 1.0HP 12.7 / 6.35 *1 30m 1.5HP 12.7 / 6.35 *1 15m 2.0 and 2.3HP / 6.35 *1 15m 2.5 and 3.0HP / m 4.0 and 5.0HP / m The pipe size shall be the same size of the piping connection hole of the Indoor Unit *1): In the case that the liquid pipe for the Indoor Unit with the capacity of 1.5HP~2.3HP is longer than 15m, use the pipe with a diameter of «9.53. *2): The pipe sizes shown in the above table is applicable for both the line branch and the header branch. *3): The piping length between the last multi-kit and the farthest Indoor unit shall be within 5m. Possible to Extend Longer Refrigerant Piping to Meet Needs for Tall Buildings The actual piping can be extended up to 100 meters (equivalent piping length: 125 meters). Lift between the indoor and outdoor unit can also be extended up to 50 meters, and the lift between indoor units can be extended up to 15 meters. Therefore, more variable piping systems are available. The liquid piping for the indoor units up to 2.0HP has been down-sized to 6.35mm as the outer diameter. Also, gas piping for the indoor units up to 1.5HP has been down-sized to 12.7mm as the outer diameter, resulting in simplified refrigerant piping work and a smaller of refrigerant charge.

14 1 6 FEATURES Multiple Capacity Control To effectively operate the indoor units, the most appropriate refrigerant flow volume is controlled by the number of operating indoor units. By sensing the air temperature difference between the inlet and outlet of the indoor unit, the electronic expansion opening is controlled to supply the most appropriate refrigerant flow volume. All units can be operated according to their separate operating conditions. Due to the new control method, we are able to provide 15 meters (all most equal to a 4 floor height) lift between indoor units, resulting in flexible installation. (CH units shall be installed in the same floor.) Outdoor Units Standard Unit 10 min. Inverter-Driver Unit Inlet Air Temperature Inverter Frequency Outlet Air Temperature Time Cooling Operation (Setting Temperature of Thermostat: 23 ºC Cooling Operation (Setting Temperature of Thermostat: 23 ºC) Inlet Air Temperature CH Units Indoor Unit Indoor Units LO-I:100 m HO-I: 50 m (When outdoor is higher than indoor unit) 40 m (When indoor is higher than outdoor unit) HI-I: 15 m 10 min. Outlet Air Temperature Time Precise Control with the Wide Range Inverter Even for Small Air Conditioning Space The compressor speed for FXG series outdoor unit is controlled within a wide range of from 30Hz to 115Hz. Therefore, smooth operation is available without frequently using the ON/OFF control. This new wide range capacity control can meet not only the needs of a wide space but also a small space such as guest rooms and management rooms. Defrosting operation can be quickly performed because of a high compressor speed of 115Hz. Outdoor Unit 10 Hp

15 1 FEATURES 7 ELECTRONIC CAPACITY CONTROL The capacity of the 8 and 10HP outdoor unit is continuously controlled by the inverter from 26% to 100%. This wide working range has been obtained by the improvement of shaft strength and high pressure oil circulation in the scroll compressor. Therefore, an air conditioning system where heat load is greatly changed through the day is easily catered for. Also, the capacity of each indoor unit is controlled by detecting the inlet and outlet temperatures using an electronic expansion valve. Therefore even a small room down to a 0.8HP indoor unit can be air conditioned without unwanted ON/OFF operation, resulting in comfortable air conditioning. 8% Inverter Control of 10 HP Outdoor Unit 115Hz 30Hz (26%) Wide Operating Range å Improvement of Shaft Strength High Pressure Oil Circulation Capacity Control of Ref. Cycle 18% 10% (8HP) 17% 8% (10HP) RPI-0,8FSGE (Director Room) Less ON-OFF Ensuring Comfort Operation RCI-1.5FSGE (Reception Room) STOP RCI-2.5FSGE (Office) STOP RCI-2.5FSGE (Office) STOP RCI-2.5FSGE (Office) STOP Capacity Control (10%: 8HP, 8%:10HP of outdoor unit capacity) of Director Room is still possible. Individual Operation at Minimum Indoor Unit power The electronic expansion valves installed not only in the outdoor unit, but also in each indoor unit, control the refrigerant flow. They offer individual operation of the indoor unit, with 0.8HP as a minimum for 8HP and 10HP outdoor unit.

16 1 8 FEATURES Drying Operation Control This system combining the inverter speed control with indoor air volume control performs efficient dehumidification with negligible change in room temperature. Dry operation by Inverter Control Humidity (%) Room Temperature (ºC) Air Conditioning Drying Air Conditioning Trial Operation and Self-Diagnosing by Multi-Function Remote Control Switch and Printed Circuit Board in Outdoor Unit A high quality control by the new remote control switch has been developed. The self-diagnosing function, which enables quick checking of operation conditions in the indoor units and outdoor unit, has been newly equipped. Furthermore, alarm data can be put into the memory of a micro-computer when an abnormality occurs. A selfdiagnosing function for printed circuit boards is also available. Various operation data such as high pressure, low pressure, etc. are indicated on the 7-segments on the printed circuit board in the outdoor unit. By these functions, saving of maintenance period and labour during the trial operation and servicing has been achieved. 'LDJQRVLQJXVLQJWKH5HPRWH&RQWURO6ZLWFK 3ULQWHGFLUFXLWERDUGV3&%VFDQEHFKHFNHGXVLQJWKH /&'/LTXLG&U\VWDO'LVSOD\UHPRWHFRQWUROVZLWFK 7KHUHIRUHGLDJQRVLQJIRU3&%VDWWKHVLWHLVTXLFNO\DQG DFFXUDWHO\SHUIRUPHG Emergency Operation Time (hours) 'DWD0HPRU\LQWKH5HPRWH&RQWURO6ZLWFK,QWKHFDVHWKDWDQDEQRUPDOLW\RFFXUVWKH/&'UHPRWH FRQWUROVZLWFKZLOOLQGLFDWHDQDODUPFRGHVRWKDWTXLFN GLDJQRVLQJLVDYDLODEOHDWWKHVLWH The twin scroll compressors are applied as same as FSG series, therefore, in case that one of two compressors stops, it is possible to operate the normal compressor as an emergency operation. Constant speed Comp. Trouble Inverter Comp. Trouble Self-Diagnosing Function Diagnosing using the 7-Segment Display in Outdoor Unit The PCB in the outdoor unit is equipped with three 7- segment displays. This display indicates various operating modes such as: 2XWGRRU$LU7HPSHUDWXUH 'LVFKDUJH*DV7HPSHUDWXUH Remove Wiring from Terminals of Inverter Comp. (YDSRUDWLQJ7HPSHUDWXUHGXULQJ+HDWLQJ2SHUDWLRQ &RQGHQVLQJ7HPSHUDWXUH 'LVFKDUJH3UHVVXUH 6XFWLRQ3UHVVXUH Note: Set Dip Switches on PCB and Start Unit. Total capacity of Indoor units must be over 50% of outdoor unit capacity. &RPSUHVVRU5XQ7LPH Therefore, quick and accurate diagnosing is available at the site during the trial operation or normal operation. 7 segment display

17 1 FEATURES 9 HITACHI Computer Controlled Network System -CS-NET Version 5- The CS-NET is the newly developed Computer Controlled Network System from HITACHI for SET-FREE multi-split air conditioners. 8SWRRXWGRRUXQLWVWREHFRQWUROOHGSHU+/,1.%RDUG 8SWRLQGRRUXQLWVSHU+/,1. &RPPXQLFDWLRQZLWKVHUYLFHSDUWQHU 7KH&61(7FDQEHFRQQHFWHGWRDQ\SRLQWLQWKH+/LQN 6\VWHP System Example 1: Outdoor Units -16 Outdoor Unit Transmission Wires Refrigerant Piping 16 Outdoor Units Max. 128 Indoor Units Connected to any point : One Refrigerant Cycle H-Link board inside PC in ISA slot

18 1 10 FEATURES 1.3.FEATURES ON INDOOR UNITS AND OUTDOOR UNITS IN-THE-CEILING TYPE FOUR-WAY CASSETTE TYPE TWO-WAY CASSETTE TYPE WALL TYPE FLOOR TYPE FLOOR CONCEALED TYPE CEILING TYPE All data related to Indoor Units can be found in Technical Catalogue for FSG, SLIM AND COMPACT OUTDOOR UNIT In-line installation is possible due to the structure of a rear intake and upward discharge design. Even a limited space can be effectively utilized. FXG 8HP, 10HP Installation Space: 0,72 m² Comparison with current model (FX series, 10HP) Three Outdoor units (new model: FXG) can be installed at the same space where only two outdoor Units (current model: FX) can be installed Over (Current) : The dotted line shows the current model Over (New)

19 1 FEATURES NAME OF PARTS INDOOR UNITS All data related to Indoor Units can be found in Technical Catalogue for FSG, OUTDOOR UNITS n RAS-8FXG, RAS-10FXG Air Outlet Air Inlet No. Part Name No. Part Name 1 Compressor inverter 17 Check Joint (High) 2 Compressor constant speed 18 Check Joint (for Oil separator) 3 Heat exchanger 19 Solenoid valve (Gas Bypass) 4 Propeller Fan 20 Solenoid valve (Gas Bypass) 5 Fan Motor 21 Electrical Box 6 Accumulator 22 Low Pressure Sensor 7 Oil Separator 23 High Pressure Sensor 8 Micro-Computer Control Ex. Valve For Lower H. Ex. 24 High Pressure Switch for Protection 9 Micro-Computer Control Ex. Valve For Upper H. Ex. 25 Strainer (3/8) 10 Micro-Computer Control Ex. Valve For Gas Bypass 26 Strainer (1/2) 11 Reversing Valve 27 Strainer (3/4) 12 Stop Valve Low Pressure Gas Line 28 Check Valve (5/8) 13 Stop Valve High Pressure Gas Line 29 Sight Glass 14 Stop Valve Liquid Line 30 Dryer 15 Liquid Receiver 31 Oil Heater (for Oil Separator) 16 Check Joint (Low) 32 Crankcase Heater (for Compressor)

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21 2 GENERAL DATA 1 2. GENERAL DATA 2.1. n RPI n RCI n RCD n RPK n RPF n RPFI n RPC GENERAL DATA FOR INDOOR UNITS In-The-Ceiling Type 4-Way Cassette Type 2-Way Cassette Type Wall Type Floor Type Floor Concealed Type Ceiling Type All data related to Indoor Units can be found in Technical Catalogue for FSG,

22 2 2 GENERAL DATA 2.2. GENERAL DATA FOR OUTDOOR UNITS n RAS - Outdoors Unit Power Supply Nominal Cooling Capacity *1) Nominal Cooling Capacity *2) Nominal Heating Capacity Model RAS-8FXG RAS-10FXG kw kcal/h Btu/h kw kcal/h Btu/h kw kcal/h Btu/h ,000 79, ,400 77, ,400 89,100 AC 3Ø, V, 50Hz ,000 99, ,300 96, , ,300 Cabinet Color (MUNSELL Code) Synthetic Resin Paint Baked on Galvanized Steel Plate Beige (2.5Y 8/2) Sound Pressure Level (Overall A Scale) db Outer Dimensions Height mm 1,645 1,645 Width mm Depth mm Net Weight kg Refrigerant Flow Control R407C Micro-Computer Control Expansion Valve Compressor Hermetic (Scroll) Model G402DHVM+G401DHM G402DHVM+G501DHM Quantity Motor Output (Pole) kw (2) (2) Heat Exchanger Multi-Pass Cross-Finned Tube Condenser Fan Propeller Fan Quantity 1 1 Air Flow Rate m³/min (cfm) 138 (4.874) 172 (6.074) Motor Output (Pole) W 275(6) 275(6) Refrigerant Piping Flare-Nut Connection (With Flare Nuts) Liquid Line mm (in.) Ø12.7 (1/2) Ø12.7 (1/2) Gas Line Low Pressure High Pressure mm (in.) mm (in.) Ø25.4 or Ø22.2 (1 or 7/8) Ø19.05 (3/4) Ø28.6 (1-1/8) Ø19.05 (3/4) Refrigerant Charge kg Wiring Holes Power Supply mm Ø56 Ø56 Control Circuit mm Ø26.5 Ø26.5 Connecting Wire between Indoor 2 2 and Outdoor Unit Approximate Packing Measurement m³ NOTES: 1. The nominal cooling and heating capacity is the combined capacity of the HITACHI standard split system, and are based on the JIS standard B Cooling Operation Conditions Heating Operation Conditions Indoor Air Inlet Temperature: 27.0 C DB (*1) 19.5 C WB (*2) 19.0 C WB Outdoor Air Inlet Temperature: 35.0 C DB Indoor Air Inlet Temperature: Outdoor Air Inlet Temperature: Piping Length: 5 meters; Piping Lift: 0 meter DB: Dry Bulb; WB: Wet Bulb 20.0 C DB 7.0 C DB 6.0 C WB 2. The Sound Pressure Level is based on the following conditions: 1 meter from the unit service cover surface, and 1.5 meters from floor level The above data are based in cooling operation mode. In case of heating operation mode, the sound pressure level increases approximately 1~2 db. Voltage of the power source is 380V. In case of the power source of 415V, the sound pressure level increases by about 1 db. The above data was measured in an anechoic chamber so that reflected sound should be taken into consideration when installing the unit.

23 2 GENERAL DATA COMPONENT DATA n Indoor Heat exchanger and Fan All data related to Indoor Heat Exchanger and Fan can be found in Technical Catalogue for FSG, n Outdoor Heat exchanger and Fan Model RAS-8FXG RAS-10FXG Heat Exchanger Type Multi-Pass Cross Finned Tube Tube Material Cooper Tube Outer Diameter mm Ø9.53 Ø9.53 Rows 2 2 Number of Tube/Coil Fin Material Aluminum Pitch mm 2 2 Maximum Operating Pressure MPa Total Face Area m² Number of Coil/Unit 1 1 Outdoor Fan Propeller Fan Number/Unit 1 1 Outer Diameter mm Revolution (240V, 50Hz) rpm Nominal Air Flow m³/min Outdoor Fan Motor Drip-Proof Type Enclosure Starting Method PSC (Permanent Split Capacitor) Nominal Output (50/60Hz) W Quantity 1 1 Insulation Class E E 2.4. COMPONENT DETAILED DATA n Compressor Compressor Model G402DHVM G401DHM G501DHM Type Hermetic Scroll Type Air Tight Pressure Discharge (MPa) Suction (MPA) Motor Type Special Squirrel-Cage Three-Phase Motor Starting Method I.D. DOL DOL Poles Insulation E E E Oil Type FVB68D Charge (Liters) 7.0* I.D.: Inverter-Driven DOL: Direct-on-Line *: Total Charged Quantity of the Outdoor Unit

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25 DIMENSIONAL DATA 1 3. DIMENSIONAL DATA 3.1.INDOOR UNIT All data related to Indoor Units can be found in Technical Catalogue for FSG 3.2.CH UNIT Units:mm 0RGHO 3LSH/HQJWK D CH-4.0GE 68 CH-6.5GE 72 0DUN 1DPH 5HPDUNV &+*( &+*( 1 Suspension Bracket for M8 or w5/16 Bolt 2 Refrigerant Gas (Low) Pipe connection Flare connection Flare connection 3 Refrigerant Gas (High) Pipe connection 12.7 Flare connection Flare connection 4 Refrigerant Liquid Pipe connection 9.53 Flare connection 5 Refrigerant Gas Pipe connection Flare connection Flare connection 6 Refrigerant Liquid Pipe connection 9.53 Flare connection 7 Electrical Control Box 8 Hole for operating Line 26.5 at bottom side 9 Hole for power supply Line 26.5 at bottom side

26 2 DIMENSIONAL DATA 3.3.OUTDOOR UNIT 0RGHOV5$6);*DQG5$6);* Units: mm Model Pipe size a RAS-8FXG 25.4 or 22.2 RAS-10FXG 28.6 A Front Side Rear Side View from A Service Space Mark Name Remarks 1 Service Cover 2 Electrical Control Box 3a Refrigerant Gas (Low) Line Piping Connection with Øa mm Flare Nut 3b Refrigerant Gas (High) Line Piping Connection with Ø19.05 mm Flare Nut 4 Refrigerant Liquid Line Piping Connection with Ø12.7 mm Flare Nut 5 Hole for Refrigerant Piping 290 x 80 (mm) 6 Hole for Control Line Wiring Ø26.5 x 2 (mm) 7 Hole for Power Supply Wiring Ø56 mm 8 Hole for Condensate Drain Ø26 x 4 (mm) 9 Hole for Power Supply Wiring Ø52 mm 10 Holes for fixing to the floor 4 11 Hole for Refrigerant Piping 235 x 113 (mm) 127( * Keep a space of 300mm between the outdoor unit and the wall at the rear side, when the rear side wall is smaller than 500mm.

27 SELECTION DATA 1 4. SELECTION DATA 4.1.OPERATION SPACE Indoor Units All data related to Indoor Units can be found in Technical Catalogue for FSG Outdoor Units Models: RAS-8FXG, RAS-10FXG * Add the half of dimension h1 to 300mm for air intake space of rear side, when the wall of rear side is higher than 500mm. * Add the half of dimension h2 to 1500 for air intake space of front side when the wall front side is higher than 1500 mm. 4.2.CENTER OF GRAVITY Outdoor UnitS Models: RAS-8FXG Models: RAS-10FXG Units: mm Units: mm

28 2 SELECTION DATA 4.3.COOLING/HEATING PERFORMANCE AT VARIOUS COMBINATIONS SELECTION GUIDE (1) Meaning of Model Name of Indoor Unit (referred in Features, Chapter 1 Page 1) (2) Nominal Capacity of Indoor Units +RUVHSRZHU+3 &DSDFLW\ Cooling Capacity Heating Capacity kw kcal/h Btu/h kw kcal/h Btu/h 2.3 2,000 7, ,250 8, ,500 9, ,800 11, ,800 15, ,200 16, ,000 19, ,600 22, ,800 22, ,500 25, ,300 25, ,000 27, ,500 29, ,300 32, ,000 39, ,200 44,400 &DSDFLW\$GMXVWPHQWE\'LS6HWWLQJ +RUVHSRZHU+3 9DULDEOH&DSDFLW\ Cooling Capacity kw kcal/h Btu/h 3.2 2,800 11, ,300 13, ,100 16, ,500 17, ,800 22, ,900 27,300 Heating Capacity Dip Switch Setting ON:, OFF: kw kcal/h Btu/h ,500 49, ,000 55, ,100 12, ,600 14, ,600 18, ,800 19, ,500 25, ,800 30, (3) Nominal Capacity of Outdoor Units 0RGHO 5$6);* 5$6);* Horsepower (HP) Cooling Capacity Heating Capacity kw kcal/h Btu/h kw kcal/h Btu/h ,000 79, ,400 89, ,000 99, , ,300 Nominal Capacity of Outdoor Unit is under the condition that the total indoor unit horsepower is same as outdoor unit horsepower. (4) Outdoor Unit Capacity at Nominal Temperature <Correction Factor According to Total Indoor Unit Capacity> If the total indoor unit horsepower is not same to the outdoor unit horsepower, refer to Capacity Characteristic Curve of Outdoor Units in item 4.4. The characteristic curve shows the value of: "[Outdoor Unit Capacity at Nominal Temperature] x [Correction Factor According Total Indoor Unit Capacity]" 0D[LPXP$FWXDO&DSDFLW\RI2XWGRRU8QLW Maximum Actual Capacity of Outdoor Unit = [Outdoor Unit Capacity at Nominal Temperature x Correction Factor According to Total Indoor Unit Capacity] Refer to the item 4.4 x Correction Factor According to Piping Length and Lift] Refer to item 4.9 x Correction Factor According to Temperature Condition] Refer to the items 4.5 ~ 4.8 (6) Example (Given Condition) a. Total Load for Each Room Temperature Condition Estimated Cooling Load Estimated Heating Load,WHP 5RRP 5RRP 5RRP &RROLQJ +HDWLQJ kw kcal/h kw kcal/h , ,800 8,48 7, , , ,320 Equivalent Piping Length between Indoor Units and Outdoor Unit: 60m Piping Lift: 25m Correction Factor of Cooling Capacity = 1.0 Correction Factor of Heating Capacity = 0.94 Correction factor according to piping length and lift = 0.85 Power Source: 50Hz Outdoor Air Inlet Dry Bulb: 30 ºC Indoor Air Inlet Dry Bulb: 27 ºC Wet Bulb: 19 ºC Outdoor Air Inlet Dry Bulb: 1 ºC Wet Bulb: 0ºC Indoor Air Inlet Dry Bulb: 20 ºC

29 SELECTION DATA 3 b. Selecting Matching Indoor Units and Nominal Capacity Select in-the-ceiling type indoor units. (Example),WHP 5RRP 5RRP 5RRP 2XWGRRU8QLW 6HOHFWHG0RGHO 53,)6*( 53,)6*( 53,)6*( 5$6);* Nominal Cooling Capacity kw kcal/h 8.4 7, , , , ,000 Nominal Heating Capacity kw kcal/h 9.6 8, ,200 c. Outdoor Unit Capacity at Nominal Temperature <Correction Factor According to Total Indoor Unit Capacity> , , ,00 In the case of the example of page 2, the total indoor horsepower is 12.0HP (=3.0HP+4.0HP+5.0HP). Therefore, the outdoor unit capacity at the nominal temperature which is selected from the Capacity Characteristic Curve is 29.5 kw (25,370 kcal/h) at the cooling operation, 35.4 kw (30,440 kcal/h) at the heating operation under nominal conditions. d. Actual Capacity of Outdoor Unit Maximum Actual Capacity of Outdoor Unit = [Outdoor Unit Capacity at Nominal Temperature Correction Factor According to Total Indoor Unit Capacity] Correction Factor According to Piping Length and Lift Correction Factor According to Temperature Condition Refer to the table in item 4.6 and item 4.7 for Correction Factor according to the temperature condition. In the case of the example of page 2, each performance is as follows. Cooling: [29.5 kw (25,370 kcal/h)] = 25.1 kw (21,600 kcal/h) Heating: [35.4 kw (30,440 kcal/h)] x = 31.3 kw (26,900 kcal/h) e. Actual Capacity of Each Indoor Unit Actual Capacity of Each Indoor Unit = Actual Capacity of Outdoor Unit [Each Indoor Unit s Horsepower Summation of Each Indoor Unit Horsepower] Example: <RPI-1.5FSGE> Cooling Capacity: 25.1 (3.0[HP] (3.0[HP] + 4.0[HP] + 5[HP])) = 6.28 kw (5,400 kcal/h) Heating Capacity: 31.3 (3.0[HP] (3.0[HP] + 4.0[HP] + 5[HP])) = 7.83 kw (6,730 kcal/h) <RPI-2.0FSGE> Cooling Capacity: 25.1 (4.0[HP] (3.0[HP] + 4.0[HP] + 5[HP])) = 8.37 kw (7,200 kcal/h) Heating Capacity: 31.3 (4.0[HP] (3.0[HP] + 4.0[HP] + 5[HP])) = kw (8,970 kcal/h) <RPI-2.5FSGE> Cooling Capacity: 25.1 (5.0[HP] (3.0[HP] + 4.0[HP] + 5[HP])) = kw (8,990 kcal/h) Heating Capacity: 31.3 (5.0[HP] (3.0[HP] + 4.0[HP] + 5[HP])) = kw (11,220 kcal/h) f. Result:,WHP 5RRP 5RRP 5RRP 6HOHFWHG0RGHO 53,)6*( 53,)6*( 53,)6*( Actual Capacity Design Load Actual Maximum Cooling Capacity Actual Maximum Heating Capacity Estimated Cooling Load Estimated Heating Load kw kcal/h kw kcal/h kw kcal/h kw kcal/h , , , , , , , , , , , , , , , ,520 The actual capacity is nearly same or bigger than the design load, therefore, the selection of the example is allowable.

30 4 SELECTION DATA 4.4.OUTDOOR UNIT CAPACITY WITH TOTAL HORSEPOWER OF COMBINED INDOOR UNIT All data related to Outdoor Unit Capacity with Total Horsepower of Combined Indoor Unit for FXG Series are the same as for FSG Series. Please refer to Technical Catalogue for FSG, Chapter CAPACITY CHARACTERISTIC CURVES OF OUTDOOR UNITS The following charts show the characteristics of outdoor unit capacity which corresponds with total horsepower of combined indoor unit, on standard condition with refrigerant piping of horizontal and 5m at length. See the examples of the actual combinations. Cooling Capacity Cooling Characteristic Curve of RAS-8FXG Heating Capacity Heating Characteristic Curve of RAS-8FXG Cooling Capacity Heating Capacity Total Horsepower of Combined Indoor Units. Total Horsepower of Combined Indoor Units. Cooling Characteristic Curve of RAS-10FXG Heating Characteristic Curve of RAS-10FXG Cooling Capacity Heating Capacity Total Horsepower of Combined Indoor Units. Total Horsepower of Combined Indoor Units.

31 SELECTION DATA COOLING CAPACITY TABLE OF 100% COMBINATION Table 1. Cooling Capacity Table for RAS-8FXG Unit of Capacity: 1,000 kcal/h / kw (Correction Factor) 2XWGRRU$LU,QOHW,QGRRU$LU,QOHW:HW%XOEž& 'U\%XOEž& kcal/h kw kcal/h kw kcal/h kw kcal/h kw (0.86) (0.97) (1.00) (1.03) (1.05) (1.10) (1.14) (0.86) (0.97) (1.00) (1.03) (1.05) (1.10) (1.14) (0.86) (0.97) (1.00) (1.03) (1.05) (1.10) (1.14) (0.82) (0.94) (0.96) (0.99) (1.01) (1.06) (1.11) Table 2. Cooling Capacity Table for RAS-10FXG Unit of Capacity: 1,000 kcal/h / kw (Correction Factor) 2XWGRRU$LU,QOHW,QGRRU$LU,QOHW:HW%XOEž& 'U\%XOEž& kcal/h kw kcal/h kw kcal/h kw kcal/h kw (0.86) (0.97) (1.00) (1.03) (1.04) (1.09) (1.14) (0.86) (0.97) (1.00) (1.03) (1.04) (1.09) (1.14) (0.86) (0.97) (1.00) (1.03) (1.04) (1.09) (1.14) (0.82) (0.94) (0.96) (0.99) (1.00) (1.06) (1.11)

32 6 SELECTION DATA 4.7.HEATING CAPACITY TABLE OF 100% COMBINATION Table 1. Heating Capacity Table for RAS-8FXG Unit of Capacity: 1,000 kcal/h / kw (Correction Factor) 2XWGRRU$LU,QOHW,QGRRU$LU,QOHW'U\%XOEž& :HW%XOEž& kcal/h kw kcal/h kw kcal/h kw kcal/h kw kcal/h kw kcal/h kw kcal/h kw (0.78) (0.89) (0.97) (1.05) (1.06) (1.12) (1.16) (0.77) (0.87) (0.96) (1.03) (1.04) (1.08) (1.08) (0.76) (0.86) (0.94) (0.99) (1.00) (1.02) (1.02) (0.75) (0.85) (0.92) (0.98) (0.98) (0.99) (0.99) (0.75) (0.84) (0.92) (0.94) (0.95) (0.95) (0.95) (0.74) (0.82) (0.86) (0.88) (0.88) (0.88) (0.88) Table 2. Heating Capacity Table for RAS-10FXG Unit of Capacity: 1,000 kcal/h / kw (Correction Factor) 2XWGRRU$LU,QOHW,QGRRU$LU,QOHW'U\%XOEž& :HW%XOEž& kcal/h kw kcal/h kw kcal/h kw kcal/h kw kcal/h kw kcal/h kw kcal/h kw (0.78) (0.89) (0.97) (1.05) (1.06) (1.12) (1.16) (0.77) (0.87) (0.96) (1.03) (1.04) (1.08) (1.08) (0.76) (0.86) (0.94) (0.99) (1.00) (1.02) (1.02) (0.75) (0.85) (0.92) (0.98) (0.98) (0.99) (0.99) (0.75) (0.84) (0.92) (0.94) (0.95) (0.95) (0.95) (0.74) (0.83) (0.86) (0.88) (0.88) (0.88) (0.88)

33 SELECTION DATA CORRECTION FACTOR ACCORDING TO PIPING LENGTH Correction Factor for Cooling Capacity According to Piping Length The cooling capacity should be corrected according to the following formula: CCA = CC x F CCA: Actual Corrected Cooling Capacity CC: (kcal/h). Cooling Capacity in the Performance Table (kcal/h). F: Correction Factor Based on the Equivalent Piping Length. The correction factors are shown in the following figure. Equivalent Piping Length for: One 90 Elbow is 0.5m One 180 Bend is 1.5m One Multi-Kit is 0.5m H: Vertical Distance Between Indoor Unit and Outdoor Units in Meters. EL: Equivalent Total Distance Between Indoor Unit and Outdoor Unit in Meters. (Equivalent One-Way Piping Length) H>0: Position of Outdoor Unit Higher Than Position of Indoor Unit. L: Actual One-Way Piping Length Between Indoor Unit and Outdoor Unit in Meters. In case of gas piping size; Ø25.4 for RAS-8FXG, Ø28.6 for RAS-10FXG Cooling Example: 60m Equivalent Piping Length with 25m Piping Lift, Correction Factor=0.85

34 8 SELECTION DATA In case of gas piping size; Ø22.2 for RAS-8FXG Cooling Correction Factor for Heating Capacity According to Piping Length The heating capacity should be corrected according to the following formula: HCA= HC x F HCA: Actual Corrected Heating Capacity HC: (kcal/h). Heating Capacity in the Performance Table (kcal/h). F: Correction Factor Based on the Equivalent Piping Length. The correction factors are shown in the following figure. Equivalent Piping Length for One 90º Elbow is 0.5m One 180º Bend is 1.5m One Multi-Kit is 0.5m Heating

35 SELECTION DATA SENSIBLE HEAT FACTOR (SHF) All data related to Indoor Units can be found in Technical Catalogue for FSG CORRECTION FACTOR FOR DEFROSTING OPERATION The heating capacity in 4.7, excludes the condition of the frost or the defrosting operation period. In consideration of the frost or he defrosting operation, the heating capacity is corrected by the equation below. Corrected Heating Capacity = Correction Factor x Heating Capacity Outdoor Inlet Air Temp. (ºC DB) (Humidity = 85% RH) Correction Factor Note: The correction factor is not available for special condition like a snowfall or operation in a transitional period. Heating Capacity Reduced Capacity due to frost build up. Time Defrosting max. 10 min. 1 Cycle 4.11.FAN PERFORMANCE All data related to Indoor Units can be found in Technical Catalogue for FSG.

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37 SOUND DATA 1 5. SOUND DATA n Indoor Units All data related to Indoor Units can be found in Technical Catalogue for FSG n Outdoor Units 0RGHO5$6);* 3RZHUVXSSO\9+] 0HDVXUHPHQWSRLQW 0HWHU%HQHDWKWKH8QLW6HUYLFH&RYHUVXUIDFH 0HWHUIURPIORRUOHYHO 1RLVH&ULWHULD&XUYH 0RGHO5$6);* 3RZHUVXSSO\9+] 0HDVXUHPHQWSRLQW 0HWHU%HQHDWKWKH8QLW6HUYLFH&RYHUVXUIDFH 0HWHUIURPIORRUOHYHO 1RLVH&ULWHULD&XUYH Octave Sound Pressure (db: Overall C Scale) Octave Sound Pressure (db: Overall C Scale) $SSUR[LPDWH WKUHVKROGÃRIÃ+HDULQJ IRUÃ&RQWLQXRXVÃ1RLVH $SSUR[LPDWH WKUHVKROGÃRIÃ+HDULQJ IRUÃ&RQWLQXRXVÃ1RLVH Frequency (Cycle per second) Frequency (Cycle per second)