1-1Specifications
1-2 Operation Characteristic Curve
1-3 Capacity Variation Ratio According to Temperature
2.REFRIGERANT R410A
2-1 Safety During Installation/Servicing
2-2 Refrigerant Piping Installation
2-3Tools
2-4.Recharging of Refrigerant
2-5. Brazing of Pipes
3. CONSTRUCTION VIEWS
3-1 Indoor Unit
3-2 Outdoor Unit
4.WIRING DIAGRAM
4-1 Indoor Unit (For 10, 13 Series)
4-2 Indoor Unit (For 16 Series)
4-3 Outdoor Unit (For 10 Series)
4-3 Outdoor Unit (For 13,16 Series)
FILE NO. SVM-06032
5.SPECIFICATION OF ELECTRICAL PARTS
5-1 Indoor Unit (For 13NKV)
5-2 Indoor Unit (For 16NKV)
5-3Outdoor Unit (For 10NAV)
5-4Outdoor Unit (For 13NAV)
5-5Outdoor Unit (For 16NAV)
6.REFRIGERANT CYCLE DIAGRAM
6-1Refrigerant Cycle Diagram
6-2Operation Data
7.CONTROL BLOCK DIAGRAM
7-1Indoor Unit
7-2Outdoor Unit (Inverter Assembly)
8.OPERATION DESCRIPTION
8-1Outlined of Air Conditioner Control
8-2Description of Operation Circuit
8-3Temporary Operation
8-4Auto Restart Function
8-5Filter Check Lamp
8-6Remote Control and its Functions
9.INSTALLATION PROCEDURE
9-1Safety Cautions
9-2 Indoor Unit
9-3 Outdoor Unit
−1 −
9.INSTALLATION PROCEDURE
9-1Safety Cautions
9-2 Indoor Unit
9-3 Outdoor Unit
10. HOW TO DIAGNOSE THE TROUBLE
10-1 First Confirmation
10-2 Primary Judgment
10-3 Judgment by Flashing LED of Indoor Unit
10-4 Self-Diagnosis by Remote Control (Check Code)
10-5 Judgment of Trouble by Every Symptom
10-6 Check Code 1C (Miswiring in indoor/outdoor units) and 1E
10-7 How to Diagnose Trouble in Outdoor Unit
10-8 How to Check Simply the Main Parts
10-9 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad
11. HOW TO REPLACE THE MAIN PARTS
11-1 Indoor Unit
11-2 Microcomputer
11-3 Outdoor Unit
FILE NO. SVM-06032
12. EXPLODED VIEWS AND PARTS LIST
12-1 Indoor Unit (E-Parts Assy)
12-2 Indoor Unit (For RAS-10,13,16GKV-E2 / NKV-E2)
12-3 Indoor Unit (For RAS-10,13NKVX-T)
12-4 Outdoor Unit (For 10 Series)
12-5 Outdoor Unit (For 13 Series)
12-6 Outdoor Unit (For 16 Series)
12-7 Outdoor Unit (E-Parts Assy) (For 10 Series)
12-8 Outdoor Unit (E-Parts Assy) (For 13 Series)
12-9 Outdoor Unit (E-Parts Assy) (For 16 Series)
1-3.Capacity Variation Ratio According to Temperature
<Cooling><Heating>
105
100
95
90
85
80
75
70
Capacity ratio (%)
65
60
55
50
3234
Current Limited Start
• Conditions
Indoor : DB27°C/WB19°C
Indoor air flow : High
Pipe length 5m
36384042333537394143
Outdoor temp. (°C)
120
110
100
90
80
70
60
50
Capacity ratio (%)
40
30
20
10
0
−10−9−8−7−6−5−4−3−2−1012345678910
• Conditions
Indoor : DB 20°C
Indoor air flow : High
Pipe length : 5m
Outdoor temp. (°C)
Capacity ratio : 100% = Nominal Capacity
*
– 9 –
2. REFRIGERANT R410A
FILE NO. SVM-06032
This air conditioner adopts the new refrigerant HFC
(R410A) which does not damage the ozone layer.
The working pressure of the new refrigerant R410A is
1.6 times higher than conventional refrigerant (R22).
The refrigerating oil is also changed in accordance
with change of refrigerant, so be careful that water,
dust, and existing refrigerant or refrigerating oil are not
entered in the refrigerant cycle of the air conditioner
using the new refrigerant during installation work or
servicing time.
The next section describes the precautions for air
conditioner using the new refrigerant. Conforming to
contents of the next section together with the general
cautions included in this manual, perform the correct
and safe work.
2-1.Safety During Installation/Servicing
As R410A’s pressure is about 1.6 times higher than
that of R22, improper installation/servicing may cause
a serious trouble. By using tools and materials exclusive for R410A, it is necessary to carry out installation/
servicing safely while taking the following precautions
into consideration.
(1) Never use refrigerant other than R410A in an air
conditioner which is designed to operate with
R410A.
If other refrigerant than R410A is mixed, pressure
in the refrigeration cycle becomes abnormally
high, and it may cause personal injury, etc. by a
rupture.
(2) Confirm the used refrigerant name, and use tools
and materials exclusive for the refrigerant R410A.
The refrigerant name R410A is indicated on the
visible place of the outdoor unit of the air conditioner using R410A as refrigerant. To prevent
mischarging, the diameter of the service port
differs from that of R22
(3) If a refrigeration gas leakage occurs during instal-
lation/servicing, be sure to ventilate fully.
If the refrigerant gas comes into contact with fire,
a poisonous gas may occur.
(4) When installing or removing an air conditioner,
do not allow air or moisture to remain in the
refrigeration cycle. Otherwise, pressure in the
refrigeration cycle may become abnormally high
so that a rupture of personal injury may be
caused.
(5) After completion of installation work, check to
make sure that there is no refrigeration gas
leakage.
If the refrigerant gas leaks into the room, coming
into contact with fire in the fan-driven heater,
space heater, etc., a poisonous gas may occur.
(6) When an air conditioning system charged with a
large volume of refrigerant is installed in a small
room, it is necessary to exercise care so that,
even when refrigerant leaks, its concentration
does not exceed the marginal level.
If the refrigerant gas leakage occurs and its
concentration exceeds the marginal level, an
oxygen starvation accident may result.
(7) Be sure to carry out installation or removal
according to the installation manual.
Improper installation may cause refrigeration
trouble, water leakage, electric shock, fire, etc.
(8) Unauthorized modifications to the air conditioner
may be dangerous. If a breakdown occurs please
call a qualified air conditioner technician or
electrician.
Improper repair’s may result in water leakage,
electric shock and fire, etc.
2-2.Refrigerant Piping Installation
2-2-1. Piping materials and joints used
For the refrigerant piping installation, copper pipes and
joints are mainly used. Copper pipes and joints suitable for the refrigerant must be chosen and installed.
Furthermore, it is necessary to use clean copper pipes
and joints whose interior surfaces are less affected by
contaminants.
(1) Copper Pipes
It is necessary to use seamless copper pipes
which are made of either copper or copper alloy
and it is desirable that the amount of residual oil is
less than 40 mg/10 m. Do not use copper pipes
having a collapsed, deformed or discolored
portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube
may become blocked with contaminants.
As an air conditioner using R410A incurs pressure
higher than when using R22, it is necessary to
choose adequate materials.
Thicknesses of copper pipes used with R410A are
as shown in Table 2-2-1. Never use copper pipes
thinner than 0.8 mm even when it is available on
the market.
For copper pipes, flare joints or socket joints are
used. Prior to use, be sure to remove all
contaminants.
a) Flare Joints
Flare joints used to connect the copper pipes
cannot be used for pipings whose outer
diameter exceeds 20 mm. In such a case,
socket joints can be used.
Sizes of flare pipe ends, flare joint ends and
flare nuts are as shown in Tables 2-2-3 to 2-2-6
below.
Socket joints are such that they are brazed for
connections, and used mainly for thick pipings
whose diameter is larger than 20 mm.
Thicknesses of socket joints are as shown in
Table 2-2-2.
copper pipe jointed (mm)(mm)
2-2-2. Processing of piping materials
When performing the refrigerant piping installation,
care should be taken to ensure that water or dust does
not enter the pipe interior, that no other oil other than
lubricating oils used in the installed air conditioner is
used, and that refrigerant does not leak. When using
lubricating oils in the piping processing, use such
lubricating oils whose water content has been removed.
When stored, be sure to seal the container with an
airtight cap or any other cover.
(1) Flare Processing Procedures and Precautions
a) Cutting the Pipe
By means of a pipe cutter, slowly cut the pipe
so that it is not deformed.
b) Removing Burrs and Chips
If the flared section has chips or burrs,
refrigerant leakage may occur. Carefully
remove all burrs and clean the cut surface
before installation.
c) Insertion of Flare Nut
– 11 –
d) Flare Processing
Make certain that a clamp bar and copper pipe
have been cleaned.
By means of the clamp bar, perform the flare
processing correctly.
Use either a flare tool for R410A or
conventional flare tool.
Flare processing dimensions differ according to
the type of flare tool. When using a
conventional flare tool, be sure to secure
“dimension A” by using a gauge for size
adjustment.
∅D
A
Fig. 2-2-1 Flare processing dimensions
FILE NO. SVM-06032
Table 2-2-3 Dimensions related to flare processing for R410A
Nominal
diameter
1/46.350.80 to 0.51.0 to 1.51.5 to 2.0
3/89.520.80 to 0.51.0 to 1.51.5 to 2.0
1/212.700.80 to 0.51.0 to 1.52.0 to 2.5
5/815.881.00 to 0.51.0 to 1.52.0 to 2.5
Nominal
diameter
1/46.350.80 to 0.50.5 to 1.01.0 to 1.5
3/89.520.80 to 0.50.5 to 1.01.0 to 1.5
1/212.700.80 to 0.50.5 to 1.01.0 to 2.0
Outer
diameter
(mm)
Table 2-2-4 Dimensions related to flare processing for R22
Outer
diameter
(mm)
Thickness
(mm)
Thickness
(mm)
Flare tool for R410A
clutch type
Flare tool for R410A
clutch type
A (mm)
Conventional flare tool
Clutch typeWing nut type
A (mm)
Conventional flare tool
Clutch typeWing nut type
5/815.881.00 to 0.50.5 to 1.01.0 to 2.0
Table 2-2-5 Flare and flare nut dimensions for R410A
Fig. 2-2-2 Relations between flare nut and flare seal surface
(2) Flare Connecting Procedures and Precautions
a) Make sure that the flare and union portions do
not have any scar or dust, etc.
b) Correctly align the processed flare surface with
the union axis.
c) Tighten the flare with designated torque by
means of a torque wrench. The tightening
torque for R410A is the same as that for
conventional R22. Incidentally, when the torque
is weak, the gas leakage may occur.
Table 2-2-7 Tightening torque of flare for R410A [Reference values]
NominalOuter diameterTightening torque
diameter (mm) N·m (kgf·m)
1/46.3514 to 18 (140 to 180)16 (160), 18 (180)
3/89.5233 to 42 (330 to 420)42 (420)
1/212.7050 to 62 (500 to 620)55 (550)
5/815.8863 to 77 (630 to 770)65 (650)
When it is strong, the flare nut may crack and
may be made non-removable. When choosing
the tightening torque, comply with values
designated by manuf acturers. Table 2-2-7
shows reference values.
Note:
When applying oil to the flare surface, be sure to use
oil designated by the manufacturer. If any other oil is
used, the lubricating oils may deteriorate and cause
the compressor to burn out.
Tightening torque of torque
wrenches available on the market
N·m (kgf·m)
– 13 –
FILE NO. SVM-06032
2-3. T ools
2-3-1. Required tools
The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to
prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and
opposite side dimension of flare nut (For ∅12.70 copper pipe) of the refrigerant piping are lengthened.
The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge,
clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.
(1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
(2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
(3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
R410A air conditionerConventional air
installationconditioner installation
No.Used toolUsageExistence ofWhetherWhether new equipment
new equipmentconventionalcan be used with
for R410Aequipment canconventional refrigerant
be used
1Flare toolPipe flaringYes*(Note 1)
2Copper pipe gaugeFlaring by
for adjusting projection conventional flareYes*(Note 1)*(Note 1)
margintool
Evacuating,
refrigerant charge,Yes
run check, etc.
Refrigerant chargeYes
Yes
(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
(Note 2) Charging cylinder for R410A is being currently developed.
General tools (Conventional tools can be used.)
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as
the general tools.
(1) Vacuum pump(4) Reamer(9) Hole core drill (∅65)
Use vacuum pump by(5) Pipe bender(10) Hexagon wrench
attaching vacuum pump adapter. (6) Level vial(Opposite side 5 mm)
(2) Torque wrench (For ∅6.35)(7) Screwdriver (+, –)(11) Tape measure
(3) Pipe cutter(8) Spanner of Monkey wrench(12) Metal saw
Also prepare the following equipments for other installation method and run check.
(1) Clamp meter(3) Insulation resistance tester
(2) Thermometer(4) Electroscope
– 14 –
FILE NO. SVM-06032
2-4. Recharging of Refrigerant
When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the
following steps.
Recover the refrigerant, and check no refrigerant
remains in the equipment.
When the compound gauge’s pointer has indicated -0.1 Mpa (-76 cmHg), place the handle Low
Connect the charge hose to packed valve service
port at the outdoor unit’s gas side.
in the fully closed position, and turn off the
vacuum pump’s power switch.
Connect the charge hose to the vacuum pump
adapter.
Open fully both packed valves at liquid and gas
sides.
Keep the status as it is for 1 to 2 minutes, and
ensure that the compound gauge’s pointer does
not return.
Set the refrigerant cylinder to the electronic
balance, connect the connecting hose to the
cylinder and the connecting port of the electronic
balance, and charge liquid refrigerant.
Place the handle of the gauge manifold Low in
(For refrigerant charging, see the figure below.)
the fully opened position, and turn on the vacuum
pump’s power switch. Then, evacuating the
refrigerant in the cycle.
1 Never charge refrigerant exceeding the specified amount.
2 If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.
3 Do not carry out additional charging.
When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the
refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the
specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high
pressure, and may cause a rupture or personal injury.
(INDOOR unit)
Refrigerant cylinder
(With siphon pipe)
Check valve
Open/Close valve
for charging
Electronic balance for refrigerant charging
Fig. 2-4-1 Configuration of refrigerant charging
(Liquid side)
(Gas side)
– 15 –
(OUTDOOR unit)
Opened
Closed
Service port
FILE NO. SVM-06032
1 Be sure to make setting so that liquid can be charged.
2 When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.
It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.
Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the
cylinder upside down if cylinder is not equipped with siphon.
[Cylinder with siphon][Cylinder without siphon]
Gauge manifold
OUTDOOR unit
Refrigerant
cylinder
Electronic
balance
R410A refrigerant is HFC mixed refrigerant.
Therefore, if it is charged with gas, the composition
of the charged refrigerant changes and the
characteristics of the equipment varies.
Gauge manifold
OUTDOOR unit
Refrigerant
cylinder
Electronic
balance
Siphon
Fig. 2-4-2
2-5. Brazing of Pipes
2-5-1. Materials for brazing
(1) Silver brazing filler
Silver brazing filler is an alloy mainly composed of
silver and copper. It is used to join iron, copper or
copper alloy, and is relatively expensive though it
excels in solderability.
(2) Phosphor bronze brazing filler
Phosphor bronze brazing filler is generally used to
join copper or copper alloy.
(3) Low temperature brazing filler
Low temperature brazing filler is generally called
solder, and is an alloy of tin and lead. Since it is
weak in adhesive strength, do not use it for
refrigerant pipes.
1 Phosphor bronze brazing filler tends to react
with sulfur and produce a fragile compound
water solution, which may cause a gas leakage .
Therefore, use any other type of brazing filler at
a hot spring resort, etc., and coat the surface
with a paint.
2 When performing brazing again at time of
servicing, use the same type of brazing filler.
2-5-2. Flux
(1) Reason why flux is necessary
• By removing the oxide film and any foreign
matter on the metal surface, it assists the flow
of brazing filler.
• In the brazing process, it prevents the metal
surface from being oxidized.
• By reducing the brazing filler’s surface tension,
the brazing filler adheres better to the treated
metal.
– 16 –
FILE NO. SVM-06032
(2) Characteristics required for flux
• Activated temperature of flux coincides with the
brazing temperature.
• Due to a wide effective temperature range, flux
is hard to carbonize.
• It is easy to remove slag after brazing.
• The corrosive action to the treated metal and
brazing filler is minimum.
• It excels in coating performance and is
harmless to the human body.
As the flux works in a complicated manner as
described above, it is necessary to select an
adequate type of flux according to the type and
shape of treated metal, type of brazing filler and
brazing method, etc.
(3) Types of flux
• Noncorrosive flux
Generally, it is a compound of borax and boric
acid.
It is effective in case where the brazing
temperature is higher than 800°C.
• Activated flux
Most of fluxes generally used for silver brazing
are this type.
It features an increased oxide film removing
capability due to the addition of compounds
such as potassium fluoride, potassium chloride
and sodium fluoride to the borax-boric acid
compound.
2-5-3. Brazing
As brazing work requires sophisticated techniques,
experiences based upon a theoretical knowledge, it
must be performed by a person qualified.
In order to prevent the oxide film from occurring in the
pipe interior during brazing, it is effective to proceed
with brazing while letting dry Nitrogen gas (N2) flow.
Never use gas other than Nitrogen gas.
(1) Brazing method to prevent oxidation
1 Attach a reducing valve and a flow-meter to the
Nitrogen gas cylinder.
2 Use a copper pipe to direct the piping material,
and attach a flow-meter to the cylinder.
3 Apply a seal into the clearance between the
piping material and inserted copper pipe for
Nitrogen in order to prevent backflow of the
Nitrogen gas.
4 When the Nitrogen gas is flowing, be sure to
keep the piping end open.
5 Adjust the flow rate of Nitrogen gas so that it is
lower than 0.05 m3/Hr or 0.02 Mpa (0.2 kgf/
cm2) by means of the reducing valve.
6 After performing the steps above, keep the
Nitrogen gas flowing until the pipe cools down
to a certain extent (temperature at which pipes
are touchable with hands).
7 Remove the flux completely after brazing.
(4) Piping materials for brazing and used brazing
filler/flux
PipingUsed brazingUsed
material filler flux
Copper - Copper Phosphor copperDo not use
Copper - IronSilverPaste flux
Iron - IronSilverVapor flux
1 Do not enter flux into the refrigeration cycle.
2 When chlorine contained in the flux remains
within the pipe, the lubricating oil deteriorates.
Therefore, use a flux which does not contain
chlorine.
3 When adding water to the flux, use water which
does not contain chlorine (e.g. distilled water or
ion-exchange water).
Liquid side
(Flare ∅6.35)
Gas side
(Flare ∅9.52 : For
13k Series)
(Flare ∅12.7 : For
16k Series)
54
Service port
– 20 –
4. WIRING DIAGRAM
4-1. Indoor Unit (For 10,13 Series)
COLOR INDICATION
:
BROWN
BRW
:
RED
RED
:
WHITE
WHI
:
YELLOW
YEL
:
BLUE
BLU
:
BLACK
BLK
:
GRAY
GRY
:
PINK
PNK
:
ORANGE
ORN
:
GREEN & YELLOW
GRN&YEL
:
GREEN
GRN
BLK
BLK
HEAT EXCHANGER
SENSOR
(TC)
BLK
BLK
THERMO SENSOR
(TA)
CN25
(WH I)
BLU
1
1
BLU
2
2
BLU
3
3
BLU
4
4
BLU
5
5
BLU
6
6
BLU
7
7
BLU
8
8
BLU
9
9
RECEIVING AND
INFRARED RAYS
MCC-861
MCC-861
BLU
10
10
INDICATING PARTS
WHI
11
11
1
CN01
(BLU)
1
2
CN03
(WHI)
1
2
CN13
(WHI)
1
2
3
4
5
6
7
8
9
10
11
4
10
11
TERMINAL
1
2
1
2
1
2
3
4
5
6
7
8
9
BLOCK
2
FUSE
F01
T3.15A
250VAC
MAIN P.C. BOARD
WP-004
3
2
1
BLK WHIRED
CN24
CN23
3
CN08
1
2
HA
JEM-A
CN21
3
R04
4
LINE
FILTER
Fan Motor
Drive ci rcuit
CN11CN10
1
2
3
2
3
1
YEL
GRY
BRW
1
2
4
3
4
1
3
2
150°C
INDOOR
UNIT
Power
supply circ uit
+12 VDC
+5 VDC
5
5
WHI
6
5
5
6
FILE NO. SVM-06032
OUTDOOR
UNIT
5
CN07
(WH I)
WHI
1
2
3
4
5
3
1
1
3
BLK
RED
AC FAN MOTOR
1
1
YEL
2
2
YEL
3
3
YEL
4
4
YEL
5
5
LOUVER MOTOR
6
1
2
3
4
5
Simple Check for Failure Diagnosis
Chec k I tem
Check to see if the OPERATION indicator goes on
OPERAT ION
1
INDICATOR
TERMINAL
2
3
4
5
6
(AC 220~24 0V)
and off when t he main switc h or brea ker is turned on.
(Check the prima ry and secondary voltage of the
transformer.)
Check the power suppl y voltage between and .
(Refer to the name plate.)
(Check the prima ry and secondary voltage of the
transformer.)
BLOCK
Check the fluctuating voltage between and .
(15~60VDC)
Check to see if the fuse blows out.
FUSE
(Check the R04 of the vari stor.)
3.15A
Check the voltage at the No.4 pin on CN13 connector
of the infr ared receiver.
DC5V
(Check the transfor mer an d the power supply ci rcuit
of the rated voltage.)
Check the voltage at the white lead of the louver
motor.
DC12V
(Check the transfor mer an d the power supply ci rcuit
of the rated voltage.)
Check the voltage at the No.1 pin on CN10
connecto r and CN24.
(Check the F01)
Refer to the service data for the detailed failure
diagnosis.
Diagnosis Result
1
2
2
3
– 21 –
4-2. Indoor Unit (For 16 Series)
COLOR INDICATION
:
BROWN
BRW
:
RED
RED
:
WHITE
WHI
:
YELL OW
YEL
:
BLUE
BLU
:
BLACK
BLK
:
GRAY
GRY
:
PINK
PNK
:
ORANGE
ORN
:
GREEN & YE LLOW
GRN&YEL
:
GREEN
GRN
BLK
BLK
HEAT EXCHANGER
SENSOR
(TC)
THERMO SENSOR
(TA)
RECEIVING AND
INFRARED RAYS
INDICATING PARTS
MCC-861
MCC-861
CN25
(WHI)
1
2
3
4
5
6
7
8
9
10
11
BLK
BLK
BLU
1
BLU
2
BLU
3
BLU
4
BLU
5
BLU
6
BLU
7
BLU
8
BLU
9
BLU
10
WHI
11
1
CN01
(BLU)
1
2
CN03
(WHI)
1
2
CN13
(WHI)
1
2
3
4
5
6
7
8
9
10
11
4
1
2
1
2
1
2
3
4
5
6
7
8
9
10
11
TERMINAL
BLOCK
T3.15A
MAIN P.C. BOARD
MCC-867or MCC-5014
FUSE
F01
250VAC
2
BLK
CN24
1
WHI
CN23
3
2
1
3
RED
R04
CN08
3
2
HA
JEM-A
CN21
FILTER
4
LINE
R05
DB01
~
-+
~
C03
DC5V
DC12V
+
INDOOR
UNIT
FILE NO. SVM-06032
OUTDOOR
UNIT
CN10
6
(WHI)
1
3
4
5
6
CN07
(WHI)
1
2
CIRCUIT
3
4
POWER SUPPLY
5
FAN MOTOR
RED
1
BLK
3
4
5
6
WHI
YEL
BLU
DC MOTOR
5
WHI
1
1
2
3
4
5
1
YEL
2
2
YEL
3
3
YEL
4
4
YEL
5
5
LOUVER MOTOR
Simple Check for Failure Diagnosis
Check Item
OPERATION
1
INDICATOR
TERMINAL
2
BLOCK
3
4
5
6
(DC310 340V)
DC12V
DC325V
~
Check to see if the OPERATION indicator goes on
and off when the main switch or breaker is turned on.
(Check the primary and secondary voltage of the
transformer.)
Check the power supply voltage between 1 and
(Refer to the name plate.)
(Check the primary and secondary voltage of the
transformer.)
Check the fluctuating voltage between and .
(15
60VDC)
~
Check to see if the fuse blows out.
FUSE
(Check the R04 of the varistor.)
3.15A
Check the voltage at the No.4 pin on CN13 connector
of the infrared receiver.
DC5V
(Check the transformer and the power supply circuit
of the rated voltage.)
Check the voltage at the white lead of the louver
motor.
(Check the transformer and the power supply circuit
of the rated voltage.)
Check the voltage at the No.1 pin on CN10
connector.
(Check the DB01, R05 and C03.)
Refer to the service data for the detailed failure
diagnosis.
Diagnosis Result
2
2
.
3
– 22 –
FILE NO. SVM-06032
RAS-10GAV-E2, RAS-10NAV-A2,
RAS-10NAVX-T
4-3. Outdoor Unit
– 23 –
FILE NO. SVM-06032
RRAS-13GAV-E2, RAS-13NAV-A2, RAS-13NAVX-T
RAS-16GAV-E2, RAS-16NAV-A2
4-4. Outdoor Unit
– 24 –
FILE NO. SVM-06032
5. SPECIFICATION OF ELECTRICAL PARTS
5-1. Indoor Unit (For 13NKV)
No.Parts nameTypeSpecifications
1 Fan motor (for indoor) SKF-220-20-4A-1 AC Motor with 150°C thermo fuse
2 Thermo. sensor (TA-sensor) ——— 10 kΩ at 25°C
3 AC-AC transformer (T01) TT-10 187 - 276V, 6VA
4 Microcomputer
5Heat exchanger sensor
(TC-sensor)
6 Line filter (L01) SS11V-06270 27 µH, AC 0.64A
7 Diode (DB01) KBP06M 1.5A, 420V
8 Capacitor (C50)
9 Fuse (F01) BET 3.15A, 250VAC T3.15A, 250 V
10 Regulator IC (IC08) NJM7812 12VDC, 1.5A max
11 Regulator IC (IC11) NJM7805 5VDC, 1.5A max
12 Varistor (R21, R109) TND15G561K 560V
µPD780024AGK
———10 kΩ at 25°C
ELXV350ELL222ML35S 220µ F, 35V
13 Louver motor DC 12V
24BYJ48
5-2. Incoor Unit (For 16NKV)
No.Parts nameTypeSpecifications
1Fan motor (for indoor)ICF-340-30-2DC 340 V, 30 W
2Thermo. sensor (TA-sensor)———10 kΩ at 25°C
3DC-DC transformer (T01)SWT-70DC 390 V, Secondary DC 15 V, 12 V, 7 V
4MicrocomputerµPD780024AGK
5Heat exchanger sensor
(TC-sensor)
6 Line filter (L01) SS11V-06270 27mH, AC 0.6A
7Diode (DB01)D3SBA604A, 600 V
8 Capacitor (C03) KMH450VSSN120M25C 120µF, 450 V
9Fuse (F01)FCU250V, 3.15AT3.15A, 250 V
10Power supply IC (IC01)STR-L472
11Regulator IC (IC01) NJM78M15FA 15DC, 1.5A max
12 Varistor (R21, R109) TND15G561K 560 V
———10 kΩ at 25°C
13 Resistor (R01) RF-5TK4R7 4.7Ω , 5 W14Louver motor 24BYJ48 DC 12V
– 25 –
FILE NO. SVM-06032
5-3. Outdoor Unit (RAS-10GAV-E2, RAS-10NAV-A2, RAS-10NAVX-T)
No.Parts nameModel nameRating
1 SC coil L01 ADR2516-0R6TB 0.6mH, 15A
(Noise filter) L03 ADR2510-020T4B 10A, 2mH
3 Reactor CH-51-Z-T L=19mH, 10A
4 Outside fan motor
5
Fan control relay
Outside air temp.
6
sensor (TO sensor)
Heat exchanger temp.
7
sensor (TE sensor)
Dischenge temp.
8
sensor (TD sensor)
SWT-72
HF-240-20B-2R
G5NB-1ACoil DC12V Contact AC250V-1.5A
(Inverter attached) 10kΩ (25°C)
(Inverter attached) 10kΩ (25°C)
(Inverter attached) 62kΩ (20°C)
20W
Primary side DC280V, Secondary2 DC-DC transformer
side 7.0 V x 1, 12 V x 1, 17V x 2
9
Terminal block (6P)
Fuse
10
11
Electrolytic capacitor LLQ2G761KHUBTF 760µF, DC 400 V x 3 pieces
• The maximum length of the pipe for this air conditioner is 10 m. The additional charging of refrigerant is
unnecessary because this air conditioner is designed with charge-less specification.
− 29 −
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