Toshiba RAS-10N3KVR-E User manual

R410A
SERVICE MAN AL
SPLIT TYPE
Indoor Unit Outdoor Unit
RAS-13N3KVR-E/ RAS-13N3AVR-E
October, 2012
FILE NO. SVM-12057
RAS-10N3KVR-E / RAS-10N3AVR-E
PURE
SWING
FAN
FIX
QUIET
HiPOWER
ONE-T OUCH
COMFORT
SLEEP

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CONTENTS
1.SAFETY PRECAUTIONS .......................................................................... 2
2.SPECIFICATIONS ..................................................................................... 4
3.REFRIGERANT R410A ............................................................................. 8
4.CONSTRUCTION VIEWS ........................................................................ 16
5.WIRING DIAGRAM.................................................................................. 18
6.SPECIFICATIONS OF ELECTRICAL PARTS......................................... 19
7.REFRIGERANT CYCLE DIAGRAM ........................................................ 20
8.CONTROL BLOCK DIAGRAM................................................................ 24
9.OPERATION DESCRIPTION................................................................... 26
10.INSTALLATION PROCEDURE................................................................ 52
11.HOWTODIAGNOSETHETROUBLE...................................................... 68
12.HOWTO REPLACETHE MAIN PARTS................................................... 91
13.EXPLODEDVIEWS AND PARTS LIST ................................................. 108
FILE NO. SVM-12057

FILE NO. SVM-12057
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For general public use
Power supply cord of parts of appliance for outdoor use shall be at least polychloroprene sheathed flexible cord
(design H07RN-F) or cord designation 60245 IEC66 (1.5 mm2 or more). (Shall be installed in accordance with national
wiring regulations.)
CAUTION
New Refrigerant Air Conditioner Installation
•THIS AIR CONDITIONERADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY
OZONE LAYER.
R410A refrigerant is apt to be affected by impurities such as water, oxidizing membranes, and oils because the
pressure of R410A refrigerant is approx. 1.6 times of refrigerant R22. As well as the adoption of this new refrigerant,
refrigerating machine oil has also been changed. Therefore, during installation work, be sure that water, dust,
former refrigerant, or refrigerating machine oil does not enter the refrigeration cycle of a new-refrigerant air
conditioner. To avoid mixing refrigerant and refrigerating machine oil, the sizes of charging port connecting port
connecting sections on the main unit are different from those for the conventional refrigerant, and different size tools
are also required. For connecting pipes, use new and clean piping materials with highpressure withstand
capabilities, designed for R410A only, and ensure that water or dust does not enter. Moreover, do not use any
existing piping as its pressure withstand may be insufficient and may contain impurities.
CAUTION
To disconnect the appliance from the main power supply
This appliance must be connected to the main power supply be means of a circuit breaker or a switch with a contact
separation of at least 3 mm in all poles.
The installation circuit breaker must be used specified for the power supply line of this air conditioner.
DANGER
•FOR USE BY QUALIFIED PERSONS ONLY.
•TURN OFF MAIN POWER SUPPLY BEFOREATTEMPTING ANY ELECTRICAL WORK. MAKE SORE ALL POWER
SWITCHES ARE OFF FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.
•CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING CABLE IS CONNECTED WRONGLY,
ELECTRIC PARTS MAY BE DAMAGED.
•CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION.
•DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS.
FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.
•TO PREVENT OVERHEATING THE INDOOR UNITAND CAUSINGA FIRE HAZARD, PLACE THE UNIT WELL
AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEATERS, FURNACE, STOVES, ETC.
•WHEN MOVING THEAIR CONDITIONER FOR INSTALLING IT INANOTHER PLACE AGAIN, BE VERY
CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT (R410A) WITH ANY OTHER GASEOUS BODY INTO
THE REFRIGERATION CYCLE. IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE GAS
PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES
BURST OF THE PIPE AND INJURIES ON PERSONS.
•IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK,
IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED BY FIRE OR
SOMETHING ELSE, IT CAUSES GENERATION OF POISONOUS GAS.
1. PRECAUTIONS FOR SAFETY

FILE NO. SVM-12057
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WARNING
•Never modify this unit by removing any of the safety guards or bypass or bypass any of the safety
interlock switches.
•Do not install in a place which cannot bear the weight of the unit. Personal injury and property
damage can result if the unit falls.
•Before doing the electrical work, attach an approved plug to the power supply cord.
Also, make sure the equipment is properly earthed.
•Appliance shall be installed in accordance with national wiring regulations.
If you detect any damage, do not install the unit. Contact your TOSHIBA dealer immediately.
•Do not use any refrigerant different from the one specified for complement or replacement.
Otherwise, abnormally high pressure may by generated in the refrigeration cycle, which may result in a failure
or explosion of the product or an injury to your body.
CAUTION
•Exposure of unit to water or other moisture before installation could reslt in electric shock.
Do not store it in a wet basement or expose to rain or water.
•After unpacking the unit, examine it carefully for possible damage.
•Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the
noise level of the unit or where noise and discharged air might disturb neighbors.
•To avoid personal injury, be careful when handling parts with sharp edges.
•Please read this installation manual carefully before installing the unit. It contains further important instructions
for proper installation.
•The manufacturer shall not assume any liability for the damage caused by not observing the description of
this manual.

2. SPECIFICATIONS
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Unit model Indoor
RAS-10N3KVR-E
Outdoor
RAS-10N3AVR-E
Cooling capacity (kW) 2.5
Cooling capacity range (kW) 1.1 - 3.1
Heating capacity (kW) 3.2
Heating capacity range (kW) 0.9 - 4.8
Power supply 1Ph/50Hz/220-240V, 1Ph/60Hz/220-230V
Electric Indoor Operation mode Cooling Heating
characteristic Running current (A) 0.21 - 0.19 0.24 - 0.22
Power consumption (W) 35 40
Power factor (%) 76 76
Outdoor Operation mode Cooling Heating
Running current (A) 2.81 - 2.58 3.43 - 3.14
Power consumption (W) 563 710
Power factor (%) 91 94
Starting current (A) 3.67
COP (Cooling / Heating) 4.18 4.27 4.18/4.27
Operating Indoor High (Cooling / Heating) (dB-A) 38/39
noise Medium (Cooling / Heating) (dB-A) 33/34
Low (Cooling / Heating) (dB-A) 26/28
Outdoor (Cooling / Heating) (dB-A) 46/47
Indoor unit Unit model
RAS-10N3KVR-E
Dimention Height (mm) 275
Width (mm) 790
Depth (mm) 225
Net weight (kg) 10
Fan motor output (W) 20
Air flow rate (Cooling / Heating) (m3/ min) 8.6/9.5
Outdoor unit Unit model
RAS-10N3AVR-E
Dimention Height (mm) 550
Width (mm) 780
Depth (mm) 290
Net weight (kg) 33
Compressor Motor output (W) 750
Type Single rotary type with DC-inverter variable speed control
Model DA89X1C-23FZ2
Fan motor output (W) 43
Air flow rate (Cooling / Heating) (m3/ min) 30/30
Piping Type Flare connection
connection Indoor unit Liquid side (mm) ∅6.35
Gas side (mm) ∅9.52
Outdoor unit Liquid side (mm) ∅6.35
Gas side (mm) ∅9.52
Maximum length (m) 20
Maximun charge-less length (m) 15
Maximum height difference (m) 10
Refrigerant Name of refrigerant R410A
Weight (kg) 0.8
Wiring Power supply 3 Wires: Includes earth (Outdoor)
connection Interconnection 4 Wires: Includes earth
Usable temperature range Indoor (Cooling / Heating) (oC) 21 - 32/0-28
Outdoor (Cooling / Heating) (oC) -10-46/-15-24
* The specification may be subject to change without notice for purpose of improvement.
2-1. RAS-10N3KVR-E/RAS-10N3AVR-E
FILE NO. SVM-12057