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Related Manuals for Hitachi RCD-0.8FSR
Summary of Contents for Hitachi RCD-0.8FSR
- Page 1 – OPERATION MANUAL – INVERTER-DRIVEN MULTI-SPLIT SYSTEM AIR-COOLED HEAT PUMP AIR CONDITIONERS 2-Way Cassette Type INDOOR UNITS MODELS RCD-0.8FSR, RCD-1.0FSR, RCD-1.5FSR, RCD-2.0FSR, RCD-2.5FSR, RCD-3.0FSR, RCD-4.0FSR, RCD-5.0FSR, RCD-6.0FSR EN OPERATION MANUAL Original Instructions A10760510A...
- Page 3 IMPORTANT NOTICE ● HITACHI pursues a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary specifications without notice. ● HITACHI cannot anticipate every possible circumstance that might involve a potential hazard. ● This heat pump air conditioner is designed for standard air conditioning only. Do not use this heat pump air conditioner for other purposes such as drying clothes, refrigerating foods or for any other cooling or heating process. ● Do not install the unit in the following places. It may cause a fire, deformation, corrosion or failure. * Places where a fire, oil, steam or powder may enter directly to the unit such as right above a kitchen, etc. * Places where oil (including machinery oil) may be present in quantities. * Places where a lot of sulfide gas drifts such as a hot spring. * Places where inflammable gas may be generated or flow. * Places where strong salty wind blows, such as coast regions. * Places with an atmosphere of acidity or alkalinity. * Places where gas from festering trash, etc. may be generated. ● Do not install the unit in the place where silicon gas drifts. If the silicon gas attaches to the surface of the heat exchanger, the fin surface repels water. As a result, drain water splashes outside of the drain pan and splashed water runs inside of the electrical box. In the end, water leakage or electrical devices failure may occur. ● Pay attention to the following points when installing the unit in a hospital or other facilities where electromagnetic waves are generated from medical equipment. * Do not install the unit in the place where electromagnetic waves are directly radiated to the electrical box, controller cable or wired controller. * Install the unit at least 3 meters away from devices generating electromagnetic waves, such as a radio. ● Do not install the unit in the place where animals and plants catch the direct outlet air. It could adversely affect animals and plants. ● The installer and system specialist shall secure safety against the refrigerant leakage according to local regulations or standards. The following standards may be applicable, if the local regulations are not available; International Organization for Standardization, ISO5149 or European Standard, EN378 or Japan Standard, KHKS0010.
- Page 4 C WB C DB/15 C WB Cooling Operation Outdoor C DB * C DB * Indoor C DB C DB Heating Operation Outdoor C WB * C WB * DB: Dry Bulb, WB: Wet Bulb * The temperature may change depending on the outdoor unit. ● This manual should be considered as a permanent part of the air conditioning equipment and should remain with the air conditioning equipment. CHECKING PRODUCT RECEIVED ● Upon receiving this product, inspect it for any shipping damage. Claims for damage, either apparent or concealed, should be filed immediately with the shipping company. ● Check the model number, electrical characteristics (power supply, voltage and frequency) and accessories to determine if they are correct. The standard utilization of the unit shall be explained in these instructions. Therefore, the utilization of the unit other than those indicated in these instructions is not recommended. Please contact your local agent, as the occasion arises. HITACHI’s liability shall not cover defects arising from the alteration performed by a customer without HITACHI’s consent in a written form. A10760510A-rev.2...
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Page 5: Table Of Contents
TABLE OF CONTENTS 1. Safety Summary .............................1 2. Before Operation .............................6 2.1 Efficient Use of Indoor Unit ........................6 2.2 Efficient Use of Cooling and Heating ......................6 3. Name of Parts and Indication of Safety Consideration ...................7 3.1 Indoor Unit ..............................7 3.2 Wired Controller .............................8 4. Operation Method ............................9 4.1 FrostWash ..............................9 4.2 Prevent Excessive Cooling ........................9 4.3 Airflow Optimization in Heating Mode ....................9 5. Motion Sensor ..............................9 5.1 Function ..............................9 5.2 Details for Motion Sensor Control ......................9 5.3 Descriptions for Setting Items ......................10 5.4 Setting of Motion Sensor ........................10... -
Page 7: Safety Summary
Safety Summary < Signal Words > ● Signal words are used to identify levels of hazard seriousness. Definitions for identifying hazard levels are provided below with their respective signal words. : DANGER indicates a hazardous situation which, if not avoided, DANGER will result in death or serious injury. : WARNING indicates a hazardous situation which, if not avoided, WARNING could result in death or serious injury. : CAUTION, used with the safety alert symbol, indicates a hazardous situation which, CAUTION if not avoided, could result in minor or moderate injury. : NOTICE is used to address practices not related to personal injury. NOTICE : NOTE is useful information for operation and/or maintenance. NOTE A10760510A-rev.2... - Page 8 DANGER ● Do not perform installation work, refrigerant piping work, drain pumping, drain piping and electrical wiring connecting work without referring to our installation manual. If the instructions are not followed, it may result in a water leakage, an electric shock, a fire and an injury. ● Do not perform installation work, refrigerant piping work, drain pumping, drain piping and electrical wiring connecting work without tuning OFF the main power source. It may cause an electric shock or injury. ● This machine uses refrigerant R410A or refrigerant R32. The type of enclosed refrigerant is described in the specification nameplate and caution nameplate attached to the outdoor unit. When installing, repairing, or relocating, do not mix substances other than the refrigerant described on the specification nameplate or caution nameplate attached to the outdoor unit. Also, do not mix refrigerant R410A and refrigerant R32. Entering non-designated refrigerants, air, oxygen, flammable substances such as propane or alcohol may cause explosion, fire or injury. ● Turn OFF the main power source immediately if the protection device is frequently activated or the main power source switch does not work. If not, it may cause an electric shock, a fire or explosion because there are possibilities of the electrical leakage or overcurrent, etc. Contact your distributor or contractor. ● If abnormality (burnt odor, etc.) occurs, stop the operation and turn OFF the main power source immediately. If not, it may cause breakage of the product, an electric shock or a fire. Contact your distributor or contractor. ● Do not open the service cover or access panel for the indoor and outdoor unit without turning OFF the main power supply. ● Do not install the outdoor unit where there is high level of oil mist, flammable gases, salty air or harmful gases such as sulfur. ● Protect securely the electrical parts and connectors to keep water away from them. It not, It may cause an electric shock or a fire by electrical short circuit. ● Before installation is complete, make sure that the refrigerant leak test has been performed. If refrigerant gases escape into the air, turn OFF the main switch, extinguish any open flames and contact your service contractor. Refrigerant (Fluorocarbon or Difluoromethane) for this unit is odorless. If the refrigerant should leak and come into contact with open flames, toxic gas could be generated. Also, because the fluorocarbons and difluoromethanes are heavier than air, they settle to the floor, which could cause asphyxiation. In addition, difluoromethane is flammable and can cause fire. ● Refrigerant leakage may lead to insufficient air and cause difficulty with breathing. Turn OFF the main switch, extinguish all naked flames and contact your service contractor, if refrigerant leakage should occur.
- Page 9 WARNING ● Do not use any sprays such as an insecticide, lacquer or hair spray, or other flammable gases within approximately one (1) meter from the system. ● Do not control the wired controller by wet hand. It may cause failure of the wired controller or an electric shock. ● Check that the earth wire is securely connected. If the unit is not correctly grounded, it will lead to an electric shock. Do not connect the earth wiring to a gas piping, water piping, lighting conductor or earth wiring for telephone. ● Connect a fuse of specified capacity. ● Select a sufficiently strong installation location. If not, the unit may fall down and it may lead to injuries. ● When handling the refrigerant, be sure to wear leather gloves to prevent cold injuries. ● Do not install the unit where oil, vapor, organic solvent and corrosive gas (ammonia, sulfur compound and acid, etc.) may be present in quantities. Operation under such conditions may lead to refrigerant leakage due to corrosion, an electric shock, performance degradation and a failure. ● Do not put the drain pipe for the indoor unit into the drainage trench where corrosive gases occur. Otherwise, poisonous gases flow into the room, which may cause poisoning. ● Electrical wiring work must be performed by authorized installers. Incorrect installation by a non- authorized installer may cause an electric shock or a fire. ● Perform electrical work according to this Installation Manual and all the relevant regulations and standards. Failing to follow these instructions can cause capacity shortage and performance degradation, resulting in an electric shock and a fire. ● Use specified cables between units. Selecting incorrect cables may cause an electric shock or a fire. ● Ensure that the wiring terminals are tightened securely with the specified torques. Loose terminals may cause heart generation at the terminal connection part, a fire or an electric shock. ● Make sure to tie the wires together with cord clamps after connecting the wiring to the terminal board and pass the wires through the wiring hole. If not, the wires will be pinched, causing a fire. ● Make sure to turn OFF the power supply before handling the service connector. ● Fix the cables securely to make sure that the terminals are not subjected to an external force. External forces on the terminals could lead to heat generation and a fire.
- Page 10 CAUTION ● Do not step on the product nor put any material on it. ● Do not put any foreign material on the unit or inside the unit. ● Do not insert a finger or stick into the air outlet and the air inlet. It could cause injury due to touch the rotating fan or electrical devices. ● Hold the air filter and the air inlet flat grille securely by hand when attaching or removing it. If not, it may cause the product falling, resulting in an injury. ● Avoid being exposed to the direct air from the air conditioner for a long time. Otherwise, it may cause adverse effects on human health. NOTICE ● Do not install the indoor unit, outdoor unit, wired controller and cable within approximately 3 meters from strong electromagnetic wave radiators such as medical equipment. ● Supply electrical power to the system to energize the oil heater for 12 hours before startup after a long shutdown. ● Make sure that the outdoor unit is not covered with snow or ice, before operation. ● Packaged air conditioner may not be operated normally under the following cases. * In case that electrical power for the packaged air conditioner is supplied from the same power transformer as the device*. * In case that the power source wires for the device* and the packaged air conditioner are located close to each other. Device*: (Ex) Lift, container crane, rectifier for electric railway, inverter power device, arc furnace, electric furnace, large-sized induction motor and large-sized switch. It consumes a large quantity of electrical power. Regarding the cases mentioned above, surge voltage may be inducted in the power supply wiring for the packaged air conditioner due to a rapid change in power consumption of the device and an activation of switch. Therefore, check the field regulations and standards before performing electrical work in order to protect the power supply for the packaged air conditioner. ● Do not install the unit in the place where the breeze directly catches animals and plants. It could adversely affect animals and plants.
- Page 11 NOTE ● It is recommended that the room be ventilated every 3 to 4 hours. ● The heating capacity of the heat pump unit is decreased according to the outdoor air temperature. Therefore, it is recommended that auxiliary heating equipment be used in the field when the units is installed in a low temperature region. Additional safety information for R32 refrigerant air conditioner and heat pump according to IEC 60335-2-40: 2018. Explanation of symbols displayed on the indoor unit or outdoor unit. This symbol shows that this equipment uses a flammable refrigerant (A2L). WARNING If the refrigerant is leaked, together with an external ignition source, there is a possibility of ignition. This symbol shows that the Operation Manual should CAUTION be read carefully. This symbol shows that a service personnel should be handling this equipment with reference to the CAUTION Installation Manual. This symbol shows that there is information included in CAUTION the Operation Manual and/or Installation Manual. A10760510A-rev.2...
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Page 12: Before Operation
Before Operation NOTICE Supply electrical power to the system for approximately 12 hours before start-up after long shutdown. Do not start the system immediately after power supply. It may cause a compressor failure, because the compressor is not heated well. Make sure that the outdoor unit is not covered with snow or ice. If it is covered with snow, remove it by using hot water (approximately 50 C). -
Page 13: Name Of Parts And Indication Of Safety Consideration
Name of Parts and Indication of Safety Consideration The safety considerations are indicated on the indoor unit in order to ensure the safe use. Read and understand this manual before using the indoor unit. 3.1 Indoor Unit Specification Label Indoor Unit (Electrical Box Cover) Air Outlet Louver Air Panel (Optional) Air Inlet Flat Grille (The air filter is attached inside.) Motion Sensor Kit (Optional) Marked of Warning Wired Controller (Optional) The operating condition is displayed on the LCD. -
Page 14: Wired Controller
3.2 Wired Controller Model: PC-ARF1 (Optional) The example below references the control panel and all adjustable settings. The wired controller display may be Display Part different during actual operation. Fan Speed Indicator Swing Louver Indicator Schedule Timer Indicator It is indicated when the schedule timer function is set. (*) Avoid Air and Receive Operation Mode Indicator Indicator It is only for the air panel with Operation Lock Indicator The indications of motion/radiation sensor. (*) It is indicated when the operation “HEAT” and “AUTO” are lock function is set. (*) indicated only for the heat pump type models. Filter Sign Indicator FLTR Room Name It is indicated at the set period for... -
Page 15: Operation Method
● The indoor unit operation can be stopped by the Operation Method motion sensor control. Refer the manual for the wired controller. NOTE: The indoor unit without the motion sensor and 4.1 FrostWash the indoor unit with the motion sensor can be Refer to the manual for PC-ARFG1. mixed to install. In this case, when the operation is stopped by the motion sensor control, the indoor unit without 4.2 Prevent Excessive Cooling the motion sensor will also stop the operation. Refer to the manual for PC-ARFG1. ● While the air conditioning capacity is saved or the operation is stopped by the motion sensor 4.3 Airflow Optimization in Heating Mode control, “Motion sensor is activated” is displayed Refer to the manual for PC-ARFG1. on LCD. ● If the function “Prohibiting operation by wired controller” is used from the centralized controller, select the command “ON” or “Stand-by” in “If absent” at the motion sensor control setting. Motion Sensor If “OFF” is selected, the motion sensor control This setting is available only for the air panel with can not be performed correctly as follows. motion sensor. * In the case that “OFF” is selected in the motion sensor control setting and “Prohibiting 5.1 Function operation by wired controller” (for all items) is... -
Page 16: Descriptions For Setting Items
5.3 Descriptions for Setting Items 5.4 Setting of Motion Sensor ● Motion Sensor Setting (1) Press “Menu”. The operation mode for activations for function Select “Motion Sensor Setting” from the can be selected as follows: menu by pressing “ ” or “ ” and press “OK”. * ALL MODES: Function is available when the operation mode Menu is “COOL”, “DRY”, “HEAT” or “FAN”. * COOL+DRY: Back/Help Menu 15:10(Fri) Function is available when the operation mode Individual Louver Setting Louver Open/Close is “COOL”, “DRY” or “FAN”. VENTI * HEAT: Menu Total Heat Exchanger SET Function is available when the operation mode Motion Sensor Setting is “HEAT”. - Page 17 (5) Press “ ” or “ ” and select “If absent”. (9) Press “OK” after the setting is completed. The confirmation screen will be displayed. Select “Yes” by pressing “ ” or “ ” and Motion Sensor Setting press “OK”. The motion sensor setting will Menu Sensor ALL MODES be confirmed and the screen will return to the If absent normal mode (operation mode indication). Check interval 30min Back/Help Sel. Adj. Entr Back Rtrn Motion Sensor Setting Menu Save changes in motion sensor setting? (6) The display is switched “ON”, “Stand-by” and Back/Help “OFF” in order by pressing “...
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Page 18: Other Indications
Other Indications 6.1 In Normal Condition 6.1.1 Central Control 6.1.3 Defrost "Defrost" is turned ON and the indoor fan stops • When remote control operation is restricted during defrosting operation. The louver is fixed in (all functions) a horizontal position. “Central Control” and “ ” are turned ON. If the remote control restriction is set from the central controller, the settings for RUN, Operation Mode, Temperature Setting, Fan Speed and Louver will not be accessible from the controller. Turned ON • Operation Stoppage during Defrosting Operation If the unit operation is stopped during defrosting operation, the operation continues with the RUN Turned ON indicator (Green) turned OFF. The operation stops after defrosting operation. • When remote control operation is restricted (some functions) “ ” is turned ON. The function operation which is restricted from the central controller cannot be set. 6.1.4 Operation Control • Supplying Main Electrical Power “Preheating” is turned ON at power-on. -
Page 19: Cold Draft Control During Cooling Operation
• Different Operation Mode When the operation mode set by the wired controller is different from the outdoor unit ● The “Control Cool Air” function may not have operation mode, the actual operation mode much effect depending on the operating flashes on the LCD. conditions of the outdoor unit. (except for the heat recovery system models) ● In case one outdoor unit is connected to multiple The current operation mode and the message indoor units and the rate of these indoor units “Other remote are in HEAT setting” will be which are equipped with the “Control Cool Air” flashing. function is low, this function may not have much of an effect. ● When this function is set, it may take a few minutes to cool the entire room. ● While this function is activated, “Cold draft rest.” is displayed on the LCD control panel of the wired controller. Flashing Meeting Room MODE SPEED LOUV. TEMP The above display shows the case that Avoid the cooling mode is set from the wired AUTO controller while actual operation mode of the outdoor unit is heating. Cold draft rest. LOUV. -
Page 20: Setback Operation
Automatic Control A setback operation requires extra settings. Refer to the “Installation & Maintenance Manual” The system is equipped with the following for the wired controller and the “Service Manual” functions. for details. NOTE Except in the case of a long period of shutdown, 6.1.7 Setback Operation keep the main power switch ON. The drain Setback operation is mainly to sustain a comfort discharge mechanism is operated if the drain room air temperature while occupants are out of level is higher than the setting. the room. If the setback operation is enabled, the setpoint is ● Three Minute Guard (Enforced Stoppage) adjusted for setback. This function is utilized to protect the During this time, “Setback“ is displayed on the compressor. When the function is valid, the LCD. compressor does not operate the unit for at least Refer to the “Installation & Maintenance Manual” 3 minutes after it stops operating, with the RUN for the wired controller and the “Service Manual” indicator turned ON. The operation restarts for details. automatically after 3 minutes. ● Three Minute Guard (Enforced Operation) Meeting Room This function is utilized to protect the MODE... -
Page 21: Simultaneous Operation
Maintenance ● Defrosting Operation WARNING The indoor fan stops during defrosting operation to prevent cold air from being discharged. At ● Turn OFF the power source before the this time the louver is fixed horizontally. maintenance work. If not, it may cause a fire ● Cooling of Indoor Unit or an electric shock. When the heating operation is stopped, the ● Perform the maintenance work with stable indoor fan operation (fan speed: Low) might footing. - Page 22 (2) Remove the air filter. NOTE There are 2 types of air panel as shown in figure below. Please check a panel type, • Do not use hot water more than 50 and then remove the air filter. The air filter may be deformed by heat. • Do not dry the air filter with an open fire, a dryer Panel Type I Panel Type II or a heater. The air filter may be deformed. Hook Knob (4) Attach the air filter. After the air filter is dried, attach it correctly to the air inlet flat grille. (5) Close the air inlet flat grille. NOTE < For Panel Type I > • Be sure to attach the air filter. Slide the air filter in the arrow direction as If the indoor unit is operated without the air filter, shown below and release hooks on both sides it may cause malfunction of the indoor unit. to remove the air filter. • Make sure that the air inlet flat grille is securely locked with the knobs. If it is not properly P-AP90DNA locked, it might open suddenly, resulting in the Direction of Slide grille falling.
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Page 23: Removing, Attaching And Cleaning Air Inlet Flat Grille
9.1.2 Removing, Attaching and Cleaning Air Inlet Flat Grille • Open the air inlet flat grille at an approximately 40° angle from the air panel surface. • Tilting the air inlet flat grille, lift it up to remove ● Wipe the air inlet flat grille with a soft cloth soaked in lukewarm water and squeezed. ● Use a soft cloth to clean the air inlet flat grille and NOTE: the air panel. If benzine, thinner or detergent (with Although the air inlet flat grille can be opened surfactant) is used to cleaning, the resin part may up to 90°, it cannot be removed from the get discolored or deformed. In addition, note that air panel at the angle. Tilt it at a 40° angle the parts around the air outlet (louver, guide, etc.) when removing it. may be damaged if an excessive force is applied. Tilting the air inlet flat grille, The air inlet flat grille can be removed and lift it up to remove it. cleaned. Ceiling (1) Open the air inlet flat grille. Air Panel While sliding the knobs on both side of the air inlet flat grille in the arrow direction, open... -
Page 24: Troubleshooting
10. Troubleshooting 10.1 This is Not Abnormal Phenomenon Cause and Action All indication lamps on the The micro-computer is activated to protect the wired controller are turned device from electromagnetic waves. Restart the OFF. operation. The operation is stopped automatically because the motion sensor is set as “If absent: OFF” and “Motion Sensor ON” is turned it detects as absence for a period of time. (All the Operation Stopped ON on the wired controller. indoor units connected to the same wired controller are stopped.) Restart the operation. If the instantaneous power After Power Failure failure is within 2 seconds, the operation restarts automatically. This might occur during the defrosting operation in White Steam During Heating Operation the heating operation. from Indoor Unit At Beginning of Heating This might occur when dust attached to the heat White Smoke Operation Season exchanger has been dried. -
Page 25: Before Contact
10.2 Before Contact Check the items before contacting a contractor. Trouble Checking Point Action Check that the main power Turn ON the main power source for the air source is turned ON. conditioner. Check that the fuse is not Replace the fuse or reset the circuit breaker. Operation Unavailable blown out or the circuit If the trouble recurs, contact your contractor or breaker of main power source distributor. is not tripped. Check that the air inlet and outlet of the outdoor unit are Cooling Remove objects covering the air inlet and outlet. not covered with a paper, a vinyl or other objects. Immediate Check that there are any shutdown after obstacles preventing the air start-up flow near the air inlet and Heating Remove the obstacles preventing the air flow. outlet of the outdoor unit. Check that the outlet air is not short-circuited to the air inlet. Check that the operation If the fan mode is selected, switch the operation mode is appropriate. -
Page 26: Contact Distributor
10.3 Contact Distributor If the problem is not resolved even after checking the previous items or if other troubles not mentioned in the previous pages occur, stop using the product and contact your distributor or contractor. WARNING If abnormality (burnt odor, etc.) occurs, stop the operation and turn OFF the main power source immediately. If not, it may cause breakage of the product, an electric shock or a fire. Contact your distributor or contractor. Trouble Action before Contact Protection devices (fuses, breakers, and ELB's) activate... -
Page 27: Alarm Code
10.4 Alarm Code Code Category Content of Abnormality Code Category Content of Abnormality Activation of Protection Device Indoor Unit Incorrect Setting of Indoor Unit No. (Float Switch) Activation of Protection Device Outdoor Unit System Incorrect Indoor Unit Combination (High Pressure Cut) Transmission Failure between Abnormality of Picking up Circuit for Indoor and Outdoor Protection in Outdoor Unit Transmission Transmission Failure between Inverter Abnormality Running Current at Compressor PCB and Outdoor PCB Constant Speed Compressor Supply Phase Abnormality of Power Source Phases Overload Cooling Pressure Abnormality of Voltage Drop in Voltage Overload Heating Outdoor Unit Activation of Pressure Ratio Decrease Decrease in Discharge Gas Superheat Protection Device Cycle Excessively High Discharge Gas Activation of Low Pressure Decrease Temperature at Top of Compressor Protection Device... - Page 28 Product origin: MADE IN JAPAN © 2020 Hitachi-Johnson Controls Air Conditioning, Inc. 1-16-1, Kaigan Minato-ku, Tokyo 105-0022, Japan A10760510A-rev.2, 2024 Printed in Japan...
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