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INSTALLATION AND MAINTENANCE MANUAL
HITACHI SPLIT AIR CONDITIONERS
Installation and Maintenance Manual
Models
<
IndoorUnits
>
Heat Pump Type
RPFC-2.0UNE1NH*
RPFC-3.0UNE1NH
RPFC-4.0UNE1NH
RPFC-5.0UNE1NH
RPFC-6.0UNE1NH
RPFC-6.5UNE1NH
<
>
OutdoorUnits
Heat Pump Type
RAS-2.0UNESNH1*
RAS-3.0UNESNH1
RAS-4.0UNESNH1
RAS 5.0UNESMH1
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RAS 6.0UNESMH1
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RAS 6.5UNESMH1
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Cooling Only Type
RPFC-2.0TNE1NH*
RPFC-3.0TNE1NH*
RPFC-4.0TNE1NH*
RPFC-5.0TNE1NH*
RPFC-6.0TNE1NH*
RPFC-6.5TNE1NH*
Cooling Only Type
RAS-2.0TNESNH1*
RAS-3.0TNESNH1*
RAS-4.0TNESNH1*
RAS-5.0TNESMH1*
RAS-6.0TNESMH1*
RAS-6.5TNESMH1*
HPM2017010HA
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Table of Contents
Related Manuals for Hitachi RPFC-3.0UNE1NH
Summary of Contents for Hitachi RPFC-3.0UNE1NH
- Page 1 INSTALLATION AND MAINTENANCE MANUAL HITACHI SPLIT AIR CONDITIONERS Installation and Maintenance Manual Models < IndoorUnits > Heat Pump Type Cooling Only Type RPFC-2.0UNE1NH* RPFC-2.0TNE1NH* RPFC-3.0UNE1NH RPFC-3.0TNE1NH* RPFC-4.0UNE1NH RPFC-4.0TNE1NH* RPFC-5.0UNE1NH RPFC-5.0TNE1NH* RPFC-6.0UNE1NH RPFC-6.0TNE1NH* RPFC-6.5UNE1NH RPFC-6.5TNE1NH* < > OutdoorUnits Cooling Only Type Heat Pump Type RAS-2.0TNESNH1*...
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Page 2: Table Of Contents
Contents Alert Symbols.............................1 Caution Statements ...........................2 Composition of the Air-Conditioner ......................3 Operation Manual Special Remarks ............................5 Trouble Shooting............................5 Diagram of Refrigerant Cycle & Wiring 1. Refrigerant Flow Diagram........................7 2. Electrical Wiring Diagram ........................7 Installation and Maintenance 1. Safety Notice ............................8 2. -
Page 3: Alert Symbols
Contents NOTE This air conditioner is designed for the following temperatures. ● Operate the air-conditioner within this range: Outdoor operating temperature range DC Inverter Unitary Series Series Mode Maximum( Minimum( ℃ ℃ Cooling Operation Heat Pump Heating Operation Cooling Only Cooling Operation ℃... -
Page 4: Caution Statements
Caution Statements We recommend that this air-conditioner is installed properly by qualified installation technicians in accordance with the installation instructions provided with the unit. Before installation, check if the voltage of the power supply at installation site is the same as the voltage shown on the nameplate. -
Page 5: Composition Of The Air-Conditioner
Composition of the Air-conditioner Indoor Unit Air Intake Filter (Inside of Air Intake) Display Panel Air Outlet Vertical Louver (Inside of Horizontal Louver) Horizontal Louver Wireless Remote Controller Outdoor Unit 2.0/3.0/4.0/5.0HP 6.0/6.5HP Notes: Figures in the manual are only simple representation of the appliance, it may not comply with the appearance of the air conditioner you have purchased. - Page 6 Composition of the Air-conditioner Wire remote controller (optional) You can control the air-conditioner with the wired controller or remote controller. It is used for power ON/OFF, setting the operating mode, temperature, fan speed and other functions. There are different types of remote controllers which can be used. Operation instruction will be further specified in remote controller's manual separately.
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Page 7: Operation Manual
Operation Manual Special Remarks 3 minutes protection after compressor stop ● To protect compressor, it will be to be continue off for at least 3 minutes once it has stopped. 5 minutes protection ● Compressor must run at least for 5 minutes once it starts running. In this 5 minutes, compressor will not stop even if the room temperature reaches the set point unless you use remote control switch to turn off the unit (all indoor unit can be turned off by user). - Page 8 Operation Manual 3. Not Cooling or Heating properly Check for obstruction of air flow at outdoor or indoor units. Check if too many heating sources are located in the room. Check if the air filter is clogged with dust. Check if the doors or windows are open. Check if the temperature condition is above the normal operation range.
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Page 9: Diagram Of Refrigerant Cycle & Wiring
Diagram of Refrigerant Cycle & Wiring 1. Refrigerant Flow Diagram INDOOR UNIT OUTDOOR UNIT Gas piping Compressor Accumulator Wide service valve 4-way valve Liquid piping Service valve Heating cycle Cooling cycle 2. Electrical Wiring Diagram Outdoor unit Indoor unit Indoor unit Outdoor unit Terminal Terminal... -
Page 10: Installation And Maintenance
Installation and Maintenance 1. Safety Notice WARNING · Installation should be performed by a qualified personnel. (Improper installation may cause water leakage, electrical shock or fire.) ·Install the unit according to the instructions given in this manual. (Incomplete installation may cause water leakage, electrical shock or fire). -
Page 11: The Tools And Instruments For Installation
Installation and Maintenance 2. The Tools and Instruments for Installation Number Tool Number Tool Standard screwdriver Knife or wire stripper Vacuum pump Leveller Charge hose Hammer Pipe bender Churn drill Adjustable wrench Tube expander Pipe cutter Inner hexagon spanner Cross head screw-driver Measuring Tape 3. - Page 12 Installation and Maintenance LIST OF ACCESSORIES For Unit Hanging Washer (M10) For Unit Hanging And Paper Pattern Adjustment Insulation For Refrigerant Piping Connection Insulation Cord Clamp For Pipe Cover Fixing Drain Hose For Drain Pipe Connection Hose Clamp For Joint Socket Connection Heavylnsulation For Drain Hose Cover Joint Socket...
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Page 13: Installation Location
Installation and Maintenance 3.2 Installation Location 3.3 Installation According to the actual installation space, installation can be Select the suitable areas to install the unit with · approval of the user. done at in the ceiling or on the floor. Ensure that the air path is not blocked. - Page 14 Installation and Maintenance ※The outlet through which the pipings are (2) Remove side panel. taken out is available in three directions. Remove the screw and detach the side panel by ※Pipes can be taken out in 3 directions (rear, right sliding it towards the direction indicated by the or top).
- Page 15 Installation and Maintenance Floor standing type installation Place the left hanger bracket on the nuts and · washers of the suspension bolts. (1) Select the suspension bolt locations and the Make sure that the left hanger bracket is · pipe hole location. fixed on the nuts and washers securely, .
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Page 16: Refrigerant Piping
Installation and Maintenance 4. Refrigerant Piping DANGER (2) As shown in Fig. 4.3, fix the nuts with 2 spanners. Use the R410A refrigerant. During leakage check and test, do not mix oxygen, acetylene and other flammable or reactive gases. These gases are quite dangerous, and may possibly cause explosion. -
Page 17: Drain Piping
Installation and Maintenance 5. Drain Piping CAUTION Install the drain piping · Drain piping connections · Do not connect the drain directly to sewage pipes that Refrigerant pipes smell of ammonia. The ammonia in the sewage might enter the indoor unit through the drain pipes and corrodethe heat exchanger. -
Page 18: Electrical Wiring
Installation and Maintenance 6. Electrical Wiring CAUTION When clamping the wiring, to prevent external pressure being exerted on the wiring connections, · use the clamping material and fix firmly as shown in the Fig.6.1. When performing the wiring work, ensure that the wiring is proper and does not cause the control ·... -
Page 19: The Installation Of The Outdoor Unit
Installation and Maintenance 8. The Installation of the Outdoor Unit Pipe length L 8.1 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 Heat Source/ventilation fan in proximity Add. -
Page 20: Refrigerant Piping
Installation and Maintenance 9. Refrigerant Piping 9.3 Heat Insulation of the Refrigerant Pipe 9.1 Flaring with Pipe Expander To avoid loss of heat and to prevent the ground being wet by condensed water, all Note: A good flare will have the following characteristics: refrigerant pipes must be insulated with suitable Inside surface is glossy and smooth. -
Page 21: Vacuuming And Test Run
Installation and Maintenance 10. Vacuuming and Test Run WARNING Only after all the check points have been verified · Air and moisture remaining in the refrigerant system the unit can be operated. have undesirable effects. (A) Ensure that the resistance of the terminal to ground Therefore, they must be removed completely with the Ω... -
Page 22: Electrical Installation
Installation and Maintenance 10.5 Electrical Installation ● 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) Ensure that the insulation resistance is more than 2MΩ, by measuring the resistance between ground and the terminal of the electrical parts. - Page 24 They can take this product for environmental safe recycling. Specifications in this document are subject to change without notice, in order that Hitachi-Johnson Controls Air Conditioning, Inc. may bring the latest innovations to their customers.