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SERVICE MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
OUTDOOR UNIIT
RAC-07BH1
RAC-09BH1
RAC-14BH1
SPECIFICATIONS
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
COOLING
CAPACITY
TOTAL INPUT
HEATING
TOTAL AMPERES
CAPACITY
DIMENSIONS
NET WEIGHT
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT
RAS-07BH1
RAS-09BH1
RAS-14BH1
COOLING UNIT
RAS-07BH1
RAS-09BH1
(W)
(A)
(kW)
(BTU/H)
(W)
(A)
(KW)
(BTU/H)
W
H
(mm)
D
(kg)
COOLING UNIT + CONDENSING UNIT
AW
RAS-07BH1/RAC-07BH1
RAS-09BH1/RAC-09BH1
RAS-14BH1/RAC-14BH1
REFER TO THE FOUNDATION MANUAL
SPECIFICATIONS ------------------------------------------------------------------- 5
CONSTRUCTION AND DIMENSIONAL DIAGRAM ----------------------- 6
NAMES AND FUNCTIONS OF EACH PART ------------------------------- 8
MAIN PARTS COMPONENT --------------------------------------------------- 23
WIRING DIAGRAM ----------------------------------------------------------------- 25
BASIC MODE ------------------------------------------------------------------------ 33
AUTO SWING FUNCTION ------------------------------------------------------ 37
REFRIGERATION CYCLE ------------------------------------------------------- 44
PARTS LIST AND DIAGRAM --------------------------------------------------- 46
WALL TYPE
CONDENSING UNIT
RAC-07BH1
RAC-09BH1
1φ, 220 V, 50 Hz
850 - 875
3.95 - 4.06
2.25 - 2.60
7,679 - 8,874
820 - 840
3.81 - 3.90
2.50 - 2.90
8,533 - 9,898
785
775
250
500
175
300
9
30
.5
NO. 0016E
CONTENTS
COOLING UNIT
CONDENSING UNIT
RAS-14BH1
RAC-14BH1
1,130
5.25
3.60
12,287
1300
6.03
4.20
14,335
815
820
298
520
194
280
9
38
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Table of Contents
Related Manuals for Hitachi RAS-07BH1
Summary of Contents for Hitachi RAS-07BH1
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Page 1: Table Of Contents
NO. 0016E RAS-07BH1/RAC-07BH1 RAS-09BH1/RAC-09BH1 SERVICE MANUAL RAS-14BH1/RAC-14BH1 TECHNICAL INFORMATION REFER TO THE FOUNDATION MANUAL FOR SERVICE PERSONNEL ONLY OUTDOOR UNIIT INDOOR UNIT CONTENTS SPECIFICATIONS ------------------------------------------------------------------- 5 CONSTRUCTION AND DIMENSIONAL DIAGRAM ----------------------- 6 NAMES AND FUNCTIONS OF EACH PART ------------------------------- 8... - Page 2 SAFETY DURING REPAIR WORK 1. In order to disassemble and repair the unit in question, be sure to disconnect the power cord plug from the power outlet before starting the work. 2. If it is necessary to replace any parts, they should be replaced with respective genuine parts for the unit, and the replacement must be effected in correct manner according to the instructions in the Service Manual of the unit.
- Page 3 WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS 1. Scope The standards provide for items to be generally observed in carrying and handling semiconductors in relative manufacturers during maintenance and handling thereof. (They apply the same to handling of abnormal goods such as rejected goods being returned).
- Page 4 (6) Use a three wire type soldering iron including a grounding wire. Metal plate (of aluminium, stainless steel, etc.) Working table Resistor of 1 M (1/2W) Staple Earth wire Bare copper wire (for body earth) Fig. 3. Grounding of the working table Soldering iron Grounding wire...
- Page 5 CAUTION In quiet operation or stopping the operation, slight flowing noise of refrigerant in the refrigerating cycle is heard occasionally, but this noise is not abnormal for the operation. When it thunders near by, it is recommend to stop the operation and to disconnect the power cord plug from the power outlet for safety.
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Page 6: Specifications
SPECIFICATIONS RAS-07BH1 RAC-07BH1 MODEL RAS-14BH1 RAC-14BH1 RAS-09BH1 RAC-09BH1 FAN MOTOR 20 W 10 W 20 W FAN MOTOR CAPACITOR 1 µF, 400 V 1 µF, 400 V 2.5 µF, 400 V 2.5 µF, 400 V FAN MOTOR PROTECTOR YES (INTERNAL) -
Page 7: Construction And Dimensional Diagram
CONSTRUCTION AND DIMENSIONAL DIAGRAM MODEL RAS-07BH1 RAS-09BH1 Wireless remote controller Top air suction grill Air suction grill Front panel Front cover Cabinet Mounting plate Discharge grill Horizontal air deflector Vertical air deflector (192.5) Drain pan 192.5 Drain cap connection part... - Page 8 MODEL RAS-14BH1 Top air suction grill Wireless remote controller Front panel Air suction grill Front cover Cabinet Mounting plate Horizontal air deflector Discharge grill Vertical air deflector (182.5) 182.5 Drain cap connection part When piping is drawn horizontally , exchange VIEWED FROM BACK the drain hose for the (Pipe lead-out)
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Page 9: Names And Functions Of Each Part
(Refer page 6) OUTDOOR UNIT DRAIN PIPE Condensed water drain to outside. CONNECTING CORD AIR INLET (BACK, LEFT SIDE) AIR OUTLET MODEL NAME AND DIMENSIONS MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm) RAS-07BH1/RAS-09BH1 RAC-07BH1/RAC-09BH1 RAS-14BH1 RAC-14BH1 − 8 −... - Page 10 OPERATION INDICATOR TEMPORARY SWITCH Use this switch to start and stop when the remote controller does not work. RAS-07BH1 RAS-09BH1 By setting the temporary switch, the operation is done in previously set operation mode. When the operation is done using the temporary switch...
- Page 11 4 meters. If indoor lighting is controlled electronically, the range of control may be shorter. Signal Transmission START/STOP Button Transmission Sign HITACHI Press this button to start operation. The transmission sign blinks Press it again to stop operation. when a signal has been send.
- Page 12 The device will automatically determine the mode of operation, HEAT, COOL or DEHUMIDIFY, depending on the initial room temperature. The selected mode of operation will not change when the room temperature varies. Press the (START/STOP) button HITACHI Operation start with a “beep” sound. STOP Press the (START/STOP) button...
- Page 13 Outdoor Temperature Room Temperature Outdoor Temperature °C below °C above °C above HITACHI OPERATION MODE SELECTION Every time you press the button, the mode will change as the below sequence (Auto) → (Heat) → (Dry) → (Cool) ° C ROOM TEMPERATURE SETTING...
- Page 14 OFF Timer Reservation Operation stop at setting time OFF TIME setting Select the OFF TIME by pressing the (OFF) HITACHI Button. Setting time will change according to the below sequence when you press the button. 0.5 hour interval 1 hour interval °...
- Page 15 HOW TO SET THE SLEEP TIMER Press the (SLEEP) button, and the display changes as shown below. Mode Indication HITACHI 1 hour 2 hours 3 hours 7 hours Sleep timer Sleep timer off Sleep Timer: The device will continue working for the designated °...
- Page 16 Explanation of the sleep timer The device will control the FAN SPEED and room temperature automatically so as to be quiet and good for people's health. You can set the sleep timer to turn off after 1, 2, 3 or 7 hours. The FAN SPEED and room temperature will be controlled as shown below.
- Page 17 If the button is pressed again, the deflector stops in its current position. Several seconds (about 6 seconds) may be RAS-07BH1 RAS-09BH1 required before the deflector starts to move. Use the horizontal air deflector within the adjusting range about 20°...
- Page 18 TEMPORARY SWITCH TEMPORARY SWITCH Use this switch to start and stop when the remote controller does not work. RAS-07BH1 RAS-09BH1 By setting the temporary switch, the operation is done in previously set operation mode. When the operation is done using the temporary switch...
- Page 19 THE IDEAL WAYS OF OPERATION Suitable Room Temperature Install curtain or blinds Warning It is possible to Freezing temperature reduce heat is bad for health and a entering the waste of electric power. room through windows. Ventilation Effective Usage Of Timer At night, please use the “...
- Page 20 FOR USER’S INFORMATION The Air Conditioner And The Heat Source In The Room Caution If the amount of heat in the room is above the cooling capability of the air conditioner (for example: more people entering the room, using heating equipments and etc.), the preset room temperature cannot be achieved.
- Page 21 MAINTENANCE Before the cleaning, stop operation and disconnect the power supply. AIR FILTER Clean the air filter, as it removes dust inside the room. In case the air filter is full of dust, the air flow will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the filter following the procedure below.
- Page 22 Washable Front Panel The front panel remove and can wash with clean water in whole. Wash it with a soft sponge. After using neutral detergent, wash thoroughly with clean water. When it is not removed, wipe it with a soft dry cloth.
- Page 23 REGULAR INSPECTION PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT SHOULD YOU NEED ANY HELP. Is the plug of power line firmly plugged into the socket? (Please ensure no loose contact between them). Confirm Is the earth line disconnected or broken? Is the mounting frame seriously affected by rust and is the...
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Page 24: Main Parts Component
MAIN PARTS COMPONENT THERMOSTAT Thermostat Specifications RAS-07BH1 RAS-07BH1 RAS-14BH1 MODEL RAS-09BH1 RAS-09BH1 RAS-14BH1 THERMOSTAT MODEL OPERATION MODE COOL HEAT 17.0 (62.6) 15.7 (60.3) 16.7 (62.1) INDICATION 16.3 (61.3) 16.3 (61.3) 17.3 (63.1) TEMPERATURE 25.0 (77.0) 23.7 (74.7) 24.7 (76.5) INDICATION °... - Page 25 COMPRESSOR MOTOR Compressor Motor Specifications MODEL RAC-07BH1, RAC-09BH1 RAC-14BH1 COMPRESSOR MODEL SG533QB1 SL232CV-C7LU PHASE SINGLE SINGLE RATED VOLTAGE 220 V 220 V RATED FREQUENCY 50 Hz 50 Hz LOCKED ROTOR CURRENT 18 A 27 A POLE NUMBER OVER LOAD PROTECTOR OVER LOAD PROTECTOR WHITE BROWN...
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Page 26: Wiring Diagram
WIRING DIAGRAM MODEL RAS-07BH1 / RAC-07BH1 RAS-09BH1 / RAC-09BH1 RAS-14BH1 / RAC-14BH1 COMPRESSOR THERMAL FUSE FOR PCB FAN MOTOR REVERSING VALVE COIL FAN MOTOR PROTECTOR POWER RELAY 1 µF CAPACITOR SURGE ASSORBER THERMISTOR COMPRESSOR CAPACITOR RAC-07BH1,RAC-09BH1 : 30 µF TRANSFORMER RAC-14BH1 : 35 µF... - Page 27 FAN (H) FAN (M) FAN (L) − 26 −...
- Page 28 FAN (H) FAN (M) FAN (L) − 27 −...
- Page 29 RESISTOR CAPACITOR MODEL RAS-07BH1 / RAS-09BH1 SYMBOL RESISTANCE TOLERANCE POWER FORM SYMBOL RATED TYPE FORM NOTES: R206 ±5% 1/10W C201 0.1µ , 25V C C202 1000µ , 35V D 1. TYPE OF CAPACITOR R301 2.4K ±2% 1/10W C203 100µ , 16V D...
- Page 30 RESISTOR CAPACITOR MODEL RAS-14BH1 SYMBOL RESISTANCE TOLERANCE POWER FORM SYMBOL RATED TYPE FORM C201 0.1µ , 25V C R206 ±5% 1/10W C202 1000µ , 35V D LINE CODE R301 2.4K ±2% 1/10W C203 100µ , 16V D R302 ±5% 1/10W C204 100µ...
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Page 31: Basic Mode
BASIC MODE Operation mode Cooling Sensor dehumidification Heating Automatic Control function Start/stop button, Start/stop button Start/stop button Operation and stop are repeated TEMPERATURE OF INDOOR HEAT basic mode operation lamp operation lamp independent of timer reservations independent of timer reservations EXCHANGER THERMISTOR Start/stop button Start/stop button... - Page 32 Operation mode F an C ooling S ens or dehumidification Heating Automatic C ontrol function "S trong" circulation "S trong" circulation At the time of heating 15s ec 30 s ec 30 s ec 30 s ec 30 s ec ●...
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Page 33: Auto Swing Function
AUTO SWING FUNCTION PRESENT CONDITION INPUT SIGNAL OPERATING SPECIFICATION REFERENCE OPERATION OPERATION MODE AIR DEFLECTOR ONE SWING (CLOSING AIR DEFLECTOR) INITIALIZE AT NEXT 1 DOWNWARD STOP OPERATION. STOP EACH MODE 2 UPWARD KEY INPUT DURING ONE SWING STOP AT THE MOMENT. START SWINGING AUTO COOL 1 DOWNWARD... -
Page 34: Service Call Q & A
SERVICE CALL Q & A Cooling operation While cooling, the compres- Check whether frost sticks on If cooling is performed when sometimes stops the heat exchanger of indoor the room temperature is low, abruptly. unit or not. frost may stick on the heat Wait for 3-4 minutes until the exchanger of indoor unit. - Page 35 Heating operation Air does not come out when It is not a trouble. The fan is When starting the operation, starting a heating operation. stopped to avoid cold wind. the heat exchanger is cold and, therefore, the fan is stopped. Wait for 2-3 minutes.
- Page 36 Automatic operation automatic According to the room operation mode determined? temperature, cooling or dehumidifying operation is automatically selected. Cooling: When room temperature is approx. 27°C or higher. Dehumidifying: When room temperature is between approx. 23°C and 27°C. Heating: When room temperature is approx.
- Page 37 Common, etc. There difference There may be a difference between room between room temperature setting and temperature setting and actual room temperature. actual room temperature on account room structure, air flow, etc. If there is a difference from the room temperature, adjust the set temperature to keep living space at a comfortable temperature.
- Page 38 Wireless remote controller When the room temperature The room temperature is setting is “16”, pressing the settable within the range of room temperature control 16 - 32 and not beyond. button “ V ” causes no transmission. “32”, pressing “ ”...
- Page 39 Timer-Lamp, break-down checking in blinking sign. Check the break-down factor from the frequency of timer-lamp blinking. Mode of Timer-Lamp blinking Indication Factor Estimated Break-Down Part 4-way valve not working (1) 4-way valve is not working. Inside temperature is low in (2) Heat-exchanger thermistor is –...
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Page 40: Refrigeration Cycle
REFRIGERATION CYCLE MODEL RAS-07BH1 / RAC-07BH1 RAS-09BH1 / RAC-09BH1 COOLING DEHUMIDIFYING DEFROST φ8.0 Outdoor Unit Indoor Unit Suction Tank Reversing Comp Valve Service Valve Union (3/8") (3/8") φ9.52 Charging φ7.0 φ9.52 Pipe φ6.35 φ9.52 φ9.52 φ11.0 φ7.0 φ7.0 φ7.0 φ7.0 φ6.35... - Page 41 REFRIGERATION CYCLE MODEL RAS-14BH1 / RAC-14BH1 COOLING DEHUMIDIFYING DEFROST φ 9.52 Outdoor Unit Indoor Unit Suction Tank Reversing Comp Valve Service Valve Union (1/2") (1/2") φ 9.52 φ 12.7 φ 12.7 φ 12.7 φ 12.7 φ 7.0 φ 8.0 φ 7.0 φ...
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Page 42: Parts List And Diagram
PARTS LIST AND DIAGRAM MODEL RAS-07BH1, RAS-09BH1 − 46 −... - Page 43 MODEL RAS-07BH1, RAS-09BH1 PART NO. Q'TY / UNIT PARTS NAME RAS-07BH1, RAS-09BH1 HWRAS-07BH1 FRONT PANEL ASS'Y HWRAS-07BH1 ELECTRIC PARTS COVER2 HWRAS-07BH1 3/8FNAHO HWRAS-07BH1 1/4FNAHO HWRAS-07BH1 FAN MOTOR SUPPORT HWRAS-07BH1 BAND HWRAS-07BH1 FAN MOTOR HWRAS-07BH1 S-COVER-R HWRAS-07BH1 CABINET HWRAS-07BH1 UPPER COVER...
- Page 44 MODEL RAC-07BH1, RAC-09BH1 − 48 −...
- Page 45 MODEL RAC-07BH1, RAC-09BH1 PART NO. Q'TY / UNIT PARTS NAME RAC-07BH1,RAC-09BH1 HWRAC-07BH1 BASE HWRAC-07BH1 FAN MOTOR HWRAC-07BH1 PROPELLER FAN HWRAC-07BH1 FRONT COVER HWRAC-07BH1 DISCHARGE GRILL HWRAC-07BH1 VALVE ASSEMBLY HWRAC-07BH1 CONDENSER ASSEMBLY HWRAC-07BH1 SOUNDPROOF ASSEMBLY HWRAC-07BH1 COMPRESSOR HWRAC-07BH1 COMPRESSOR CAPACITOR (30 µF, 400V) HWRAC-07BH1 FAN MOTOR CAPACITOR (2.5 µF, 400V) HWRAC-07BH1...
- Page 46 MODEL RAS-14BH1 − 50 −...
- Page 47 MODEL RAS-14BH1 PART N0. Q'TY / UNIT PARTS NAME RAS-14BH1 RAS-14BH1 CABINET RAS-14BH1 COVER(LOWER)(R) RAS-14BH1 DRAIN PAN RAS-14BH1 DRAIN HOSE RAS-14BH1 ELECTRIC BOX ASS'Y RAS-14BH1 MOUNTING PLATE RAS-14BH1 FAN COVER RAS-14BH1 TANGENTIAL AIR FLOW FAN RAS-14BH1 FAN SUPPORT ASS'Y RAS-14BH1 FAN MOTOR RAS-14BH1 FAN MOTOR COVER(L)
- Page 48 MODEL RAC-14BH1 − 52 −...
- Page 49 MODEL RAC-14BH1 PART N0. Q'TY / UNIT PARTS NAME RAC-14BH1 RAC-14BH1 COMPRESSOR RAC-14BH1 CONDENSER RAC-14BH1 TERMINAL COVER RAC-14BH1 TERMINAL COVER NUT RAC-14BH1 COMPRESSOR NUT RAC-14BH1 FAN MOTOR RAC-14BH1 PROPELLER FAN RAC-14BH1 COMPRESSOR CAPACITOR RAC-14BH1 FAN MOTOR CAPACITOR RAC-14BH1 FRONT COVER RAC-14BH1 SIDE COVER(R) RAC-14BH1...
- Page 50 MEMO ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................–...
- Page 51 RAS-07BH1 / RAC-07BH1 RAS-09BH1 / RAC-09BH1 RAS-14BH1 / RAC-14BH1 AW NO. 0016E...