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_ HITACHI INSTALLATION & MAINTENANCE MANUAL Core Goo LARGE SINGLE SPLIT INVERTER SERIES INDOOR & OUTDOOR UNITS DUCTED UNIT COOLING ONLY TYPE RPIL-B18TFTANA/RAS-B18TFTSNAA RPIM-B25TFTANA/RAS-B25TFTSNAA RPIM-B30TFTANA/RAS-B30TFTSNAA RPIM-B36TFTANA/RAS-B36TFTSNAA RPIM-B42TFTANA/RAS-B42TFTSMAA RPIM-B42TFTANA/RAS-B42TFTSNAA RPIM-B48TFTANA/RAS-B48TFTSMAA RPIM-B55TFTANA/RAS-B55TFTSMAA EN INSTRUCTION MANUAL Hl2022522H...
Contents Safety Precautions Caution Statements........................ 15 Composition of the Air Conditioner..................17 Operation Manual ........................18 Special Remarks ........................18 Troubleshooting........................19 Diagram of Refrigerant Cycle Refrigerant Flow Diagram......................20 Installation and Maintenance 1. Safety Notice ........................2. Tools and Instruments for Installation ................. 3.
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There are symbols on both indoor and outdoor equipment. This symbol applies to the R32 refrigerant, the type of which is on the label of the outdoor unit. In the case of this refrigerant, the R32 unit uses Warning a flammable refrigerant. (Risk of fire) Yes, if this refrigerant leaks and is exposed to an open flame or a heated part.
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• Do not turn on the lights until the entire operation is completed, if the lights are turned on before the entire operation is completed, it may cause serious accidents such as electric shock or fire. • If the leaking air conditioner comes into direct contact with the flame, toxic gases may be produced.
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• This unit is part of the package that makes up this air conditioner and cannot be installed in complete sets or with equipment not authorized by the manufacturer. • When a pipe less than 3 meters in length is installed, the sound of the outdoor unit will be transmitted to the indoor unit, which may produce working noise or abnormal noise.
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Caution If the unventilated area is smaller than the minimum installation area, the air conditioner should not be installed in this area. The installation height is the minimum installation height, that is, the minimum installation height of the cold air pipe or indoor unit, whichever is the lowest. The following table is determined according to the minimum installation height of 1.8 meters and 2.2 meters If the required minimum installation height is less than 1.8 meters, the minimum installation space must be recalculated.
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Individuals involved in operating or able to manage the air conditioning cycle should hold a • valid qualification issued by an industrial certification assessment body, which has the authority to certify skills. The ability to operate air conditioners safely according to instructions approved by industry •...
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- The equipment and vents are working properly and nothing is blocking them. - If the air conditioner water circuit is used indirectly, check the presence of air conditioner water. - Text on the device must be clear and easy to read, and difficult-to-read text and symbols should be corrected.
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Such inspections should take into account the effects of service life or continuous vibration • from sources such as compressors or fans. 6. Detection of flammable air conditioners Do not use fire sources to locate or detect air conditioning water leaks. •...
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o The air conditioner transfer cylinder should be kept upright. o Be sure to ground the cooling system before adding th e air conditioner to the system. o When filling is complete, close the system label (if it is not already there). o Be very careful not to add too much air conditioning to the cooling system.
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If possible, the cylinders used to pump the air conditioner should be flushed from a system • that does not contain the air conditioner and cooled before starting to pump the air conditioner from the system. The equipment used to pump air conditioning water from the system should be placed in •...
Safety Precautions Precautions for using R32 refrigerant The basic installation work procedures are the same as the conventional refrigerant (R22 or R410A). However, pay attention to the following points: WARNING 1. Transport of equipment containing flammable refrigerants. Attention is drawn to the fact that additional transportation regulations may exist with respect to equipment containing flammable gas.
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Safety Precautions WARNING 6-8 Checks to the refrigeration equipment 6-8 Checks to the refrigeration equipment • Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. • Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. •...
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Safety Precautions WARNING Detection of flammable refrigerants • Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. • A halide torch (or any other detector using a naked flame) shall not be used. Leak detection methods The following leak detection methods are deemed acceptable for systems containing flammable refrigerants: •...
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Safety Precautions WARNING Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant. It is essential that electrical power is available before the task is commenced. a) Become familiar with the equipment and its operation.
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Safety Precautions WARNING • Appliance shall be installed, operated and stored in a room with a floor area larger than X (X see below). • The installation of pipe-work shall be kept to a room with a floor area larger than X (X see below). •...
Caution Statements Alert Symbols : DANGER : The symbol refers to a hazard which can result in severe personal injury or death. : The symbol refers to a hazard or an unsafe practice which may result in severe personal injury WARNING or death.
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Caution Statements WARNING ● Type and rating of circuit breakers/ELB is detailed in “Installation and Maintenance part. If the fuses in units blows, please call the service agency to replace it with a new one. Please do not replace it by yourself, or else it may result in accident, for example, electric shock.
Composition of the Air Conditioner Indoor unit 30K/36K 18K/25K 42K/48K/55K 1. Air inlet 2. Electric box 3. Refrigerant pipe (Liquid) 4. Refrigerant pipe (Gas) 5. Drain pipe (Connect with pump) 6. Drain pipe 7. Air outlet Outdoor unit Remote controller You can control the air conditioner with the wire or wireless remote controller.
Composition of the Air Conditioner Wired controller Remote controller ALARM HCWA21NEHH HCRB31NEWH (Standard) (Optional) Note: The figures are based on the external views of the standard model. Consequently, the shape may differ for the air conditioner model you have selected. Operation Manual Special remarks •...
Operation Manual Troubleshooting CAUTION When drain water overflows from the indoor unit, stop the operation and contact your dealer. When you smell or see white smoke coming out of the unit, turn OFF the main power supply and contact your dealer. If Trouble issue persists ...
Diagram of Refrigerant Cycle Refrigerant Flow Diagram Indoor unit Cooling cycle Apellation Apellation Hexagon nut Ambient temperature sensor Indoor heat exchanger Coil temperature sensor List of componentnames Outdoor unit Apellation Compressor Outdoor heat exchanger Electronic expansion valve Stop valve(Liquid) Stop valve (Gas) List of componentnames...
Installation and Maintenance 1. Safety Notice WARNING ·Installation should be left to the dealer or other professional personnel. (Improper installation may cause water leakage, electrical shock, or fire.) ·Install the unit according to the instruction given in this manual. (Incomplete installation may cause water leakage, electrical shock, or fire.) ·Be sure to use the supplied or specified installation parts.
Installation and Maintenance 2. Tools and Instruments for Installation Number Number Tool Tool Number Tool Pipe cutter Standard screwdriver Drill Cross head screwdriver Pipe expander Vacuum pump Inner hexagon spanner Charge hose Knife or wire stripper Pipe bender Leveler Measuring tape Adjustable wrench Hammer 3.
Installation and Maintenance ·Air inlet and outlet are free of obstructions. 3.2 Installation ·The air passage is not blocked. 3.2.1 Suspension bolts ·Condensate can drain properly. (1) Consider the pipe direction, wiring, and ·Overhead structure can support the weight of the maintenance carefully.
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Installation and Maintenance 3.2.3 Install the indoor unit. The installation of the indoor unit is shown in Fig. 3.4. Suspension bolts (4-M10 or W3/8) ( Field supplied ) Fig. 3.7 Nuts and (3) After the adjustment, tighten the nuts and apply the washers (4- M1 0 or W3/ 8) thread locker on the suspension to prevent the nuts...
Installation and Maintenance 4. Indoor Unit Refrigerant Pipe (3) After finishing connecting the refrigerant pipes, keep it warm with the insulation material. DANGER Clamp(field supplied) Insulation (field supplied) Use the refrigerant according to outdoor nameplate. Refrigerant pipe When carrying on the leakage check and test, do not (field supplied) mix in the oxygen, the acetylene and flammable and the virulent gas, for these gases are quite dangerous,...
Installation and Maintenance 5. Drain Piping Install the condensate drain piping Referring the figure below, insulate the drain socket · and drain hose using the included large sealing pad. Make sure the drain works properly . · Prepare polyvinyl chloride pipe with a 1-1/4 in.(32mm) ·...
Installation and Maintenance 6. Electrical Wiring 6.1 General Check CAUTION ·When clamping the wiring, use the included clamping material to prevent outside pressure being exerted on the wiring connections and clamp firmly. When doing the wiring, make sure the wiring is neat and does not cause the control box lid to stick up, then ·...
Installation and Maintenance 6.3 Change of Static Pressure The static pressure can be freely adjusted by using specific wired controller. The Range of Model Static Function Code Set Pressure Parameter code 0-50, function code value equals 18/25K 0-50Pa static pressure value, more than 40 Function revise indicator ALARM is 40 Pa, [default: 0 (35Pa)]...
Installation and Maintenance 7. Installation of the Outdoor Unit Pipe length L 7.1 Installation Sites Indoor unit Avoid Direct sunlight Aisle Or sideway Height difference H Outdoor unit Thick Oil fog Wet Or Uneven place Container With Flammable materials Near Heat Source/ventilation fan Max.
Installation and Maintenance 8. Refrigerant Piping The two refrigerant pipes (and electrical wire if local 8.1 Flaring with Pipe Expander codes permit)should be taped together with white NOTE: A good flare will have the following characteristics: armoring tape. The drain hose may also be included Inside surface is glossy and smooth.
Installation and Maintenance 9. Vacuuming and Test Run WARNING Only after all the check points have been checked · Air and moisture remaining in the refrigerant system the unit can be operated. have undesirable effects. (A) Check and make sure that the resistance of the Therefore, they must be removed completely with the terminal to ground is more than 2M , otherwise, you Ω...
Installation and Maintenance 9.5 ElectricalInstallation ● Use an ELB (Electric Leakage Breaker). If not used, it may cause an electric shock or a fire. ● Do not operate the system until all the check points have been cleared. (A)Check to ensure that the insulation resistance is more than 2MΩ,by measuring the resistance between ground and the terminal of the electrical parts.