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HEAT PUMP AIR CONDITIONERS Wall Mounted Type INDOOR UNITS MODELS STANDARD TYPE RPK-0.6FSRM, RPK-0.8FSRM, RPK-1.0FSRM, RPK-1.5FSRM, RPK-2.0FSRM, RPK-2.5FSRM, RPK-3.0FSRM, RPK-4.0FSRM WITHOUT EXPANSION VALVE TYPE* RPK-0.6FSRHM, RPK-0.8FSRHM, RPK-1.0FSRHM, RPK-1.5FSRHM *1 This model is the indoor unit wall mounted type without expansion valve.
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Important Notice ● HITACHI pursues a policy of continuing improvement in design and performance in its products. As such, HITACHI reserves the right to make changes at any time without prior notice. ● HITACHI cannot anticipate every possible circumstance that might involve a potential hazard.
TABLE OF CONTENTS 1. Introduction ..............................1 2. Safety Instructions ............................2 3. Before Operation .............................5 3.1 Efficient Use of Indoor Unit ........................5 3.2 Efficient Use of Cooling and Heating ......................6 4. Name of Parts and Indications for Safety Consideration ................7 4.1 Indoor Unit ..............................7 4.2 Wired Controller (PC-ARF1) ........................9 4.3 Wireless Controller (PC-AWR) ......................10 5.
Introduction Read this manual carefully before working with this product. Keep this information with the product. Forward this manual and the warranty to the next team of installers and then users. Ask them to keep this manual with the air conditioning unit. (User) (Refrigerant Piping Work) (Electrical Wiring Work)
● This unit is the pressurized system. Never loosen threaded joints while the system is under pressure and never open pressurized system parts. ● HITACHI will not assume any liability for injuries or damage caused by not following steps outlined or described in this manual. Unauthorized modifications to HITACHI products are prohibited as they…...
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Operation WARNING ● Do not insert fingers or objects into air inlet/outlet. Injury can result from rotating fan blades or energized electrical components. ● Do not touch the wired controller with wet hands. It can result in failure of the wired controller or an electrical shock.
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Others WARNING ● Turn OFF all power at the main power supply before performing maintenance work. Failure to do so can result in damage to internal components with severe or fatal electrical shock. ● Insulate all electrical components and connections from exposure to moisture. Failure to do so can result in an electrical short, fire.
Before Operation NOTICE Power is turned on. Apply power to the outdoor unit(s) at least 12 hours prior to operation of the system for preheating of the compressor oil. Make sure that the outdoor unit is not covered with snow or ice. If it is, remove it by using hot water that is approximately 122 ºF (50 ºC). If the water temperature is higher than 122 ºF (50 ºC), it will cause damage to plastic parts.
Efficient Use of Cooling and Heating COOLING HEATING (1) Airflow Direction (1) Airflow Direction The appropriate air outlet angle is approx. A as shown The appropriate air outlet angle is approx. A as shown in the table. If the cooling is not sufficient, change the in the table.
Name of Parts and Indications for Safety Consideration Safety labels are affixed to the indoor unit in order to ensure safe use. Read and understand this manual before using the indoor unit. Indoor Unit WARNING Label Electrical Hazard Danger ! DO NOT remove the earth cord.
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NOTICE ● Wall mount models: either a wired or a wireless controller is available. When a centralized controller is connected, restrictions are in place limiting operation of indoor units with a single wireless controller or utilize wired and wireless controllers together. Contact your distributor or contractor for details. ●...
Wired Controller (PC-ARF1) Following is an example of how the PC-ARF1 is utilized. If other models of the controller are utilized, operate the unit according to the manual for that controller. The example below references the control panel and all adjustable settings.
Wireless Controller (PC-AWR) ● This controller is used to send commands about operation mode timer settings and so on, to the indoor unit. Face the transmitter of the controller toward the receiver of the indoor unit and press the switch to send commands to indoor unit.
5.1.2 Cooling / Heating / Fan Operation Heating Operation is for VRF systems only and is not available for typical systems. Function * Cooling Operation: To decrease the room temperature. * Heating Operation: To increase the room temperature. * Dry Operation: To decrease the humidity in the room.
5.1.3 Temperature Setting Press “ ” or “ ” and select “TEMP”. Meeting Room MODE SPEED TEMP Menu COOL Back/Help LOUV. Adj. By pressing “ ”, the temperature is Meeting Room increased by 1 ºF (0.5 ºC or 1 ºC). MODE SPEED TEMP Menu...
5.1.5 Operation Press “ ” (On/Off). The indicator “ ” is turned ON and the operation will start. Operation On/Off Start Temperature/Air Flow Setting ● The setting is stored. Therefore, no daily setting is required. Temperature setpoint and airflow settings are retained after the indoor unit is turned OFF at the controller.
5.1.6 Louver Swing Direction Press “ ” (On/Off). Make sure that the operation is started. Menu ” and select “LOUV.”. Press “ ” or “ Back/Help By pressing “ ” or “ ”, the louver direction will be changed as follows. Menu Back/Help LCD Indication...
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● Adjusting Vertical Blade Adjust the vertical blade by hand as shown below. Vertical Blade Louver ● Automatic Louver Setting The swing louver is stopped and moved by controlling the wired controller. The louver will automatically close when the unit is stopped from the wired controller. Louver Louver 0.6 to 1.5 HP...
5.1.7 Cold Draft Control during Cooling Operation (1) Function This function controls the overcooling airflow to prevent of cold draft. (2) Setting Items * OFF : This function is not available. * LOW : The over-cooling airflow temperature is controlled low degree. * MID : The over-cooling airflow temperature is controlled medium degree.
An automatic heating/cooling operation and setback operation requires extra settings. Refer to the “Installation & Maintenance Manual” for the wired controller and the “Service Manual” for details. 5.1.8 Automatic Heating/Cooling Operation In case dual setpoint is selected in automatic heating/cooling operation, during auto mode both cooling setpoint and heating setpoint can be selected.
Wireless Controller (PC-AWR) 5.2.1 Operation Mode (Cooling, Heating, Dry and Fan Operation) When VRF system is used with wireless controllers, follow the procedure as shown below. Function * Cooling Mode (COOL): To decrease the room temperature. * Heating Mode (HEAT): To increase the room temperature. * Dry Mode (DRY): To decrease the humidity in the room.
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Point the transmitter towards the receiver and press “On ” switch. When the transmitting indicator “ ” flashes on the LCD of wireless controller, the indicator “ ” (orange) on indoor unit is turned ON and the beep sound is heard.
5.2.2 Temperature, Fan Speed and Air Flow Direction Setting NOTE ” flashes on the LCD display of When the wireless controller is pressed, the transmitting indicator “ the wireless controller and the beep sound is heard from the indoor unit. Point the transmitter towards the receiver and press “Temp”...
5.2.3 Automatic Cooling/Heating Mode Automatic Cooling/Heating Mode is for VRF system only and is not available for other systems. Also note that there is quite temperature difference between cooling and heating operation when using this function. The automatic cooling/heating operation is set by the function selection. Contact your distributor and contractor for details.
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Point the transmitter portion of wireless controller towards the receiver and press “On switch. When the transmitting indicator “ ” flashes, the indicator “ ” (orange) on indoor unit is turned ON and the beep sound is heard. The operation is started. NOTE: ”...
5.2.4 Timer Setting Function ● This function is used to start or stop unit operation at a pre-set time. ● The timer setting is available for ON TIME and OFF TIME. On Timer The operation is started beyond the set time. Off Timer : The operation is stopped beyond the set time.
5.2.5 Louver Swing Direction Function NOTE ● This function is used to change the louver angle to the required angle. ● When the wireless controllers are pressed, the ● Fixed: ” flashes on the LCD transmitting indicator “ The louver can be set at the required angle. of wireless controller and a beeping sound is ●...
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● Adjusting Vertical Blade Adjust the vertical blade by hand as shown below. Vertical Blade Louver ● Automatic Louver Setting The swing louver is stopped and moved by controlling the wired controller. The louver will automatically close when the unit is stopped from the wired controller. Louver Louver 0.6 to 1.5 HP...
5.2.6 Emergency Operation Function NOTE When the wireless controller battery power dies, The operation is as follows. the temporary switch on the unit is used. Automatic Cooling/Heating Operation Setpoint Temperature: 77 ºF (25 ºC) Fan Speed: HIGH Louver Angle: Horizontal 0.6 to 1.5 HP 2.0 to 4.0 HP Press the temporary switch.
5.2.7 Other Indications In Normal Condition Defrost Operation The indicator “ ” (yellow) is turned ON during the defrosting. The louver is stationary. The louver indication of LCD continues to Defrost be activated. Operation Stoppage during Defrosting Operation (for Cooling/Heating The indicator “...
5.2.8 Identifying Indoor Units Installed Side by Side This function is used when operating several receivers or indoor units side by side, to prevent a malfunction because incorrect signals were received from the wireless controllers used in other areas. Only the communication between the paired setting is possible, and four pairs (A, B, C, D) are available. For example, the receiver set as “A”...
5.2.9 Handling Wireless Controller ● Point the transmitter towards the receiver. The distance for transmitting is approximately 16.4 ft (5 m) maximum. (The distance for transmitting shortens if the transmitting angle is not vertical to the receiver or if there is other electronic interference in the room.) Direct Line : 16.4ft (5m) Maintain a minimum of 3.3 ft (1 m) distance between the indoor unit and light fixtures.
Automatic Control This air conditioner automatically starts the following operations according to the indoor conditions. The system is equipped with the following functions. ▪ Enforced Stoppage: The compressor remains off for at least three minutes once it has stopped. If the system is started within approximately three minutes after it has stopped, the RUN indicator is activated.
Maintenance ● Turn OFF the power source before the maintenance work. If the power source is not turned OFF, the result may be an electric shock or fire. ● When cleaning, do not allow water inside the air conditioner. Water on electrical equipment may cause electric shock.
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(1) Open the flat panel. (4) Attach the air filter. Hold both sides of the flat panel and lift it up. After the air filter has been cleaned with water and dried, reattach with the “FRONT” indicators in the proper position. Be sure to attach the air filter.
7.1.2 Maintenance for Flat Panel NOTICE ● Gently wipe down using only a clean soft cloth. Using Benzene type thinners or chemical detergents and abrasives as cleaning agents can damage the finish of plastic surfaces and louvers. In addition, pay attention that the parts around the air outlet (louver, guide, etc.) may be damaged if an excessive force is applied.
Maintenance Prior to and After Use Prior to Use • Remove any obstacles around the air inlet grilles and the air outlet of the indoor unit and outdoor unit. • Check that the air filter is not clogged with dust and dirt. After Use •...
Troubleshooting 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. Operation Stopped Restart the operation. If the instantaneous power After Power Failure failure is within two seconds, the operation restarts automatically.
Before Contact Refer to the information below before contacting a contractor. Trouble Check 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 Operation Unavailable Replace the fuse or reset the circuit breaker.
Contact Distributor If problem still remains even after checking previous issues or other problems not mentioned in the previous issues occur, stop using the product and contact your distributor or contractor. If an abnormality such as a burnt odor or something similar occurs, stop the operation and turn OFF the main power source immediately.
Alarm Code Code Category Content of Abnormality Code Category Content of Abnormality Indoor Unit Incorrect Setting of Indoor Unit No. Activation of Protection Device Activation of Protection Device Outdoor Unit Incorrect Indoor Unit Combination System (High Pressure Cut) Operational Irregularities between Problem with Protective Pickup Circuit in Outdoor Unit Indoor and Outdoor...
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