Toshiba RAS-M14EKCVP-E SERVICE MANUAL
SERVICE MANUAL
AIR-CONDITIONER
RAS-B10EKVP-E/RAS-B13EKVP-E/
FILE NO. A04-015
SPLIT TYPE
RAS-M14EAV-E
RAS-M10EKCVP-E/RAS-M13EKCVP-E/
RAS-M14EA C V-E
RAS-B10EKVP-E/RAS-B13EKVP-E/
RAS-B16EKVP-E/RAS-M18EAV-E
RAS-M10EKCVP-E/RAS-M13EKCVP-E/
RAS-M16EKCVP-E/RAS-M18EA CV-E
CONTENTS
1. SAFETY PRECAUTIONS............................................................................ 3
2. SPECIFICATIONS........................................................................................ 5
3. REFRIGERANT R410A............................................................................. 12
4. CONSTRUCTION VIEWS ......................................................................... 20
5. WIRING DIAGRAM..................................................................................... 22
6. SPECIFICATIONS OF ELECTRICAL PARTS .......................................... 24
7. REFRIGERANT CYCLE DIAGRAM ......................................................... 26
8. CONTROL BLOCK DIAGRAM ................................................................. 31
9. OPERATION DESCRIPTION .................................................................... 34
10. INSTALLATION PROCEDURE............................................................... 60
11. HO W T O DIAGNOSE THE TR OUBLE..................................................... 78
12. HOW TO REPLACE THE MAIN PARTS ................................................ 101
13. EXPLODED VIEWS AND PARTS LIST................................................ 122
14. APPENDIX ............................................................................... Appendix-1
– 2 –
1. SAFETY PRECAUTIONS
For general public use
Power supply cord of outdoor unit shall be more than 1.5 mm2 (H07RN-F or 245IEC66) polychloroprene sheathed flexible cord.
• Read this “SAFETY PRECAUTIONS” carefully before servicing.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the servicing work, perform a trial operation to check for any problem.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE
LAYER.
R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of
R410A refrigerant is approx. 1.6 times of refrigerant R22. Accompanied with the adoption of the new refrigerant, the refrigeration
machine oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or
refrigeration machine oil does not enter into the new type refrigerant R410A air conditioner circuit.
To prevent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging port on main unit and
installation tools are different from those used for the conventional refrigerant units. Accordingly, special tools are required for the
new refrigerant (R410A) units. For connecting pipes, use new and clean piping materials with high pressure fittings made for
R410A only , so that w ater and/or dust does not enter . Moreo v er, do not use the e xisting piping because there are some problems
with pressure fittings and possible impurities in existing pipi
ng.
CAUTION
TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY
This appliance must be connected to the main power supply by a circuit breaker or a switch with a contact separation of at least
3 mm.
The installation fuse (25A D type ) must be used for the power supply line of this air conditioner
.
DANGER
• Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner.
Inappropriate servicing may result in water leakage, electric shock or fire.
• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICA L WORK. MAKE SURE ALL POWER
SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.
DANGER: HIGH VOLTAGE
The high voltage circuit is incorporated.
Be careful to do the check service, as the electric shock may be caused
in case of touching parts on the P.C. board by ha
• CORRECTLY CONNECT THE CONNECTING CABLE. IF THE CONNECTING CABLE IS INCORRECTLY CONNECTED,
ELECTRIC PARTS MAY BE DAMAGED.
• CHECK THAT THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE SERVICE AND INSTALLATION.
FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.
• DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS. FAILURE TO FOLLOW THIS
INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.
• TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL
AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTORS, FURNACE, STOVES,
ETC.
• WHEN MOVING THE AIR-CONDITIONER FOR INSTALLATION IN ANOTHER PLACE, BE VERY CAREFUL NOT TO
ALLOW THE SPECIFIED REFRIGERANT (R410A) TO BECOME MIXED WITH ANY OTHER GASEOUS BODY INTO THE
REFRIGERATION CIRCUIT. IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE GAS PRESSURE IN
THE REFRIGERATION CIRCUIT WILL BECOME ABNORMALLY HIGH AND IT MAY RESULT IN THE PIPE BURSTING
AND POSSIBLE PERSONNEL INJURIES.
• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE SERVICE WORK AND THE
INSTALLATION WORK, IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED,
SUCH AS BY FIRE, GENERATION OF POISONOUS GAS MAY RESULT
nd.
.
– 3 –
WARNING
• Never modify this unit by removing any of the safety guards or by-pass 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.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may generate.
• The electrical work must be performed by a qualified electrician in accordance with the Installation Manual. Make
sure the air conditioner uses an exclusive circuit.
An insufficient circuit capacity or inappropriate installation may cause fire.
• When wiring, use the specified cables and connect the terminals securely to prevent external forces applied to the
cable from affecting the terminals.
• Be sure to provide grounding.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.
• Conform to the regulations of the local electric company when wiring the power supply.
Inappropriate grounding may cause electric shoc
k.
CAUTION
• Exposure of unit to water or other moisture before installation may result in an electrical short. Do not store in a wet
basement or expose to rain or water.
• 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 or discharged air might disturb neighbors.
• To avoid personal injury, be careful when handling parts wi th sharp edges.
• Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling
unit.
For Reference:
If a heating operation would be continuously performed for a long time under the condition that the outdoor temperature is 0°C or lower, drainage of defrosted water may be difficult due to freezing of the bottom plate , resulting
in a trouble of the cabinet or fan.
It is recommended to procure an anti freeze heater locally for a safety installation of the air conditioner.
For details, contact the dealer.
– 4 –
2. SPECIFICATIONS
The indoor and outdoor units that can be used in combination are shown in the tables below.
Table of models that can be connected
Type Outdoor unit Indoor unit
RAS-B10EKVP–E RAS-B13EKVP–E
RAS-M14EAV–E
Heat pump
RAS-M18EAV–E
RAS-M14EACV–E
Cooling-only
RAS-M18EACV–E
Table of models that can be used in combination
Type Outdoor unit Combinations of indoor unit models that can be connected
Heat pump
Cooling-only
RAS-M14EAV–E 10+10, 10+13
RAS-M18EAV–E 10+10, 10+13, 10+16, 13+13
RAS-M14EACV–E 10+10 , 10+13
RAS-M18EACV–E 10+10 , 10+13, 10+16, 13+
RAS-M10UKV–E3 RAS-M13UKV–E3
RAS-M10YDV–E RAS-M13YD V–E
RAS-B10EKVP–E RAS-B13EKVP–E RAS-B16EKVP–E
RAS-M10UKV–E3 RAS-M13UKV–E3 RAS-M16UKV–E3
RAS-M10YDV–E RAS-M13YDV–E RAS-M16YDV–E
RAS-M10EKCVP–E RAS-M13EKCVP–E
RAS-M10UKCV–E3 RAS-M13UKCV–E3
RAS-M10YDCV–E RAS-M13YDCV–E
RAS-M10EKCVP–E RAS-M13EKCVP–E RAS-M16EKCVP–E
RAS-M10UKCV–E3 RAS-M13UKCV–E3 RAS-M16UKCV–E3
RAS-M10YDCV–E RAS-M13YDCV–E RAS-M16YDCV–E
13
NOTES
A 1-room connection is not an option for the indoor units (you cannot connect only one indoor unit). A 2-room connection must
always be used for the indoor units (you must connect two indoor units).
With the RAS-M14EAV-E and RAS-M14EACV-E outdoor unit models, the 13 + 13 combination is not an option.
With the RAS-M18EAV-E and RAS-M18EACV-E outdoor unit models, the 13 + 16 or 16 + 16 combination is not an op
The contents noted in this service manual limit the indoor units to the RAS-B10EKVP-E, RAS-B13EKVP-E, RASB16EKVP-E, RAS-M10EKCVP-E, RAS-M13EKCVP-E and RAS-M16EKCVP-E. For other indoor units that can also be
used in combination, see the service manual of each indoor unit.
Indoor Unit
RAS-M10UKV-E3 RAS-M10UKCV-E3
RAS-M13UKV-E3 RAS-M13UKCV-E3
RAS-M16UKV-E3 RAS-M16UKCV-E3
RAS-M13YDV-E RAS-M13YDCV-E
RAS-M16YDV-E RAS-M16YDCV-E
File No.
SVM-04015
A02-010RAS-M10YDV-E RAS-M10YDCV-E
tion.
– 5 –
2-1-1 Specifications
Heat pump models
Unit model Indoor RAS-B10EKVP-E, RAS-B13EKVP-E, RAS-B16EKVP-E
Cooling Capacity (kW) 4.0 5.2
Cooling Capacity range (kW) 1.4 - 4.5 1.4 - 6.2
Heating Capacity (kW) 4.4 6.7
Heating Capacity range (kW)
Power supply 220~240V-1Ph-50Hz / 220V-1Ph-60Hz
Electric
charactaristics
COP(Cooling/Heating) 3.70/4.36 3.25/3.62
Operating noise
dB(A)
Indoor unit Unit model RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E(*1)
Outdoor unit Unit model RAS-M14EAV-E RAS-M18EAV-E
Piping connection
Wiring connection Power supply 3 Wires : includes earth
Usable temperature range (°C) Indoor
Accessory Indoor unit Unit model RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E(*1)
Outdoor RAS-M14EAV-E RAS-M18EAV-E
0.9 - 5.2 0.9 - 8.5
Indoor
(220V/230V/
240V)
Outdoor
(220V/230V/
240V)
Indoor
(Cooling/Heating)
Outdoor
(Cooling/Heating)
Dimension
(mm)
Net weight (kg) 9 9 9
Fan motor output (W) 30 30 30
Air fl ow rate (m
Dimension
(mm)
Net weight (kg) 36 40
Compressor Motor output (W) 750 1100
Fan motor output (W) 43 43
Air flow rate (m
Type Flare connection Flare connection
Indoor unit Unit model RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E (*1)
Outdoor unit Unit model RAS-M14EAV-E RAS-M18EAV-E
Maximum length (per unit) (m) 20 20
Maximum length (total) (m) 30 30
Maximum chargeless length(total) (m) 20 20
Maximum height difference (m) 10 10
Additional refrigerant 20g/m (pipe length 21m to 30m) 20g/m (pipe length 21m to 30m)
Name of refrigerant R410A R410A
Weight (kg) 0.90 1.20
Outdoor unit Unit model RAS-M14EAV-E RAS-M18EAV-E
Unit model RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E(*1)
Runnning Current (A)
Power Consumption (W) 30 30 30
Power factor (%) 91/87/83 91/87/83 91/87/83
Unit model RAS-M14EAV-E RAS-M18EAV-E
Operation mode Cooling Heating Cooling Heating
Running current (A)
Power Consumption (W) 1020 950 1540 1790
Power factor (%) 95 97 98 98
Starting current (A) 5.17/4.94/4.74 7.42/7.10/6.80
Unit model RAS-B10EKVP-E RAS-B13EKVP-E RAS-B16EKVP-E(*1)
High 42/43 43/44 45/45
Medium 33/34 34/35 36/36
Low 27/27 27/27 29/29
Unit model RAS-M14EAV-E RAS-M18EAV-E
2 indoor units operating
Hight 250 250 250
Width
Depth
3
/h) (Cooling/Heating) 550/610 560/640 640/660
Hight 550 550
Width 780 780
Depth 290 290
Type Twin rotary type with DC-inverter variable speed control
Model DA111A1F-20F1 DA130A1F-25F
3
/h)
Liquid side
Gas side
Liquid side/gas side
Interconnection 4 Wires : includes earth
(Cooling/Heating)
(Cooling/Heating)
Outdoor
Installation plate 1 1 1
Wireless remote controller
Batteries 2 2 2
Remote control holder 1 1 1
Zeolite-plus filter 1 1 1
Plasma Pure filter 1 1 1
Remote controller
holder mounting screw
Owner’s manual 1 1 1
Mounting screw
Installation manual 1 1 1
Installation manual 1 1
Specifi cations 1 1
Drain nipple
Water-proof rubber cap 2 2
0.15 0.15 0.15
4.87/4.64/4.44 4.43/4.23/4.04 7.12/6.80/6.50 8.28/7.91/7.57
46/48 48/50
790 790 790
215 215 215
1820 2100
∅6.35 ∅6.35 ∅6.35
∅9.52 ∅9.52 ∅12.7
∅6.35 / 9.52 ∅6.35 / 9.52
21 to 32/0 to 27
5 to 43/-10 to 24
1
2 (∅3.1×16L) 2 (∅3.1×16L) 2 (∅3.1×16L)
6 (∅4×25L) 6 (∅4×25L) 6 (∅4×25L)
11
11
• (*1) The RAS-B16EKVP-E cannot be used in combination with the RAS-M14EAV-E.
• For performance when each indoor unit is combined with other unit, refer to the separate table.
• The specifications may be subject to change without notice for purpose of improvement.
– 6 –
2-1-2 Specifications
Cooling-only models
Unit model Indoor RAS-M10EKCVP-E, RAS-M13EKCVP-E, RAS-M16EKCVP-E
Cooling Capacity (kW) 4.0 5.2
Cooling Capacity range (kW) 1.4 - 4.5 1.4 - 6.2
Heating Capacity (kW) – –
Heating Capacity range (kW)
Power supply 220~240V-1Ph-50Hz / 220V-1Ph-60Hz
Electric
charactaristics
COP(Cooling/Heating) 3.70/– 3.25/–
Operating noise
dB(A)
Indoor unit Unit model RAS-M10EKCVP-E RAS-M13EKCVP-E RAS-M16EKCVP-E(*1)
Outdoor unit Unit model RAS-M14EACV-E RAS-M18EACV-E
Piping connection
Wiring connection Power supply 3 Wires : includes earth
Usable temperature range (°C) Indoor
Accessory Indoor unit Unit model RAS-M10EKCVP-E RAS-M13EKCVP-E RAS-M16EKCVP-E(*1)
Outdoor RAS-M14EACV-E RAS-M18EACV-E
––
Indoor
(220V/230V/
240V)
Outdoor
(220V/230V/
240V)
Indoor
(Cooling/Heating)
Outdoor
(Cooling/Heating)
Dimension
(mm)
Net weight (kg) 9 9 9
Fan motor output (W) 30 30 30
Air fl ow rate (m
Dimension
(mm)
Net weight (kg) 36 40
Compressor Motor output (W) 750 1100
Fan motor output (W) 43 43
Air fl ow rate (m
Type Flare connection Flare connection
Indoor unit Unit model RAS-M10EKCVP-E RAS-M13EKCVP-E RAS-M16EKCVP-E (*1)
Outdoor unit Unit model RAS-M14EACV-E RAS-M18EACV-E
Maximum length (per unit) (m) 20 20
Maximum length (total) (m) 30 30
Maximum chargeless length(total) (m) 20 20
Maximum height difference (m) 10 10
Additional refrigerant 20g/m (pipe length 21m to 30m) 20g/m (pipe length 21m to 30m)
Name of refrigerant R410A R410A
Weight (kg) 0.90 1.20
Outdoor unit Unit model RAS-M14EACV-E RAS-M18EACV-E
Unit model RAS-M10EKCVP-E RAS-M13EKCVP-E RAS-M16EKCVP-E(*1)
Runnning Current (A)
Power Consumption (W) 30 30 30
Power factor (%) 91/87/83 91/87/83 91/87/83
Unit model RAS-M14EACV-E RAS-M18EACV-E
Operation mode Cooling Heating Cooling Heating
Running current (A)
Power Consumption (W) 1020 – 1540 –
Power factor (%) 95 – 98 –
Starting current (A) 5.17/4.94/4.74 7.42/7.10/6.80
Unit model RAS-M10EKCVP-E RAS-M13EKCVP-E RAS-M16EKCVP-E(*1)
High 42/– 43/– 45/–
Medium 33/– 34/– 36/–
Low 27/– 27/– 29/–
Unit model RAS-M14EACV-E RAS-M18EACV-E
2 indoor units operating
Hight 250 250 250
Width
Depth
3
/h) (Cooling/Heating) 550/– 560/– 640/–
Hight 550 550
Width 780 780
Depth 290 290
Type Twin rotary type with DC-inverter variable speed control
Model DA111A1F-20F1 DA130A1F-25F
3
/h)
Liquid side
Gas side
Liquid side/gas side
Interconnection 4 Wires : includes earth
(Cooling/Heating)
(Cooling/Heating)
Outdoor
Installation plate 1 1 1
Wireless remote controller
Batteries 2 2 2
Remote control holder 1 1 1
Zeolite-plus filter 1 1 1
Plasma Pure filter 1 1 1
Remote controller
holder mounting screw
Owner’s manual 1 1 1
Mounting screw
Installation manual 1 1 1
Installation manual 1 1
Specifications 1 1
Drain nipple
Water-proof rubber cap 0 0
0.15 0.15 0.15
4.87/4.64/4.44 – 7.12/6.80/6.50 –
46/– 48/–
790 790 790
215 215 215
1820 2100
∅6.35 ∅6.35 ∅6.35
∅9.52 ∅9.52 ∅12.7
∅6.35 / 9.52 ∅6.35 / 9.52
21 to 32/0 to 27
5 to 43/-10 to 24
1
2 (∅3.1×16L) 2 (∅3.1×16L) 2 (∅3.1×16L)
6 (∅4×25L) 6 (∅4×25L) 6 (∅4×25L)
0
11
0
• (*1) The RAS-M16EKCVP-E cannot be used in combination with the RAS-M14EACV -E.
• For performance when each indoor unit is combined with other unit, refer to the separate table.
• The specifications may be subject to change without notice for purpose of improvement.
– 7 –
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2-2 Performance specifications combinations of indoor unit
Cooling>
peratio
Mo
oolin
Heating>RAS-M14EAV-
eratio
eatin
AS-M14EAV-E, RAS-M14EACV-
olt
VA
240
olt
o
VA
peration
tatu
1 unit
2 unit
1 unit
2 unit
1
nit
2 unit
eration
tatu
1 unit
2 unit
1 unit
2 unit
1 unit
2 unit
peratingndoor unit
10
3
10
3
3 10 2.3
Operatingndoor unit
3 10 2.50
10 2.15 2.15 4.3
3
1
nit capacitykW
.
.
.95
.
.
.5
.95
.
2.5
.5
.
nit capacity
.
.
.
.
.
.
.
.
.95 3.9
.95 3.9
.67 4.0
kW
.90 4.4
apacitykW
1.1 to 3.2
1.1 to 3.8
1.4 to 4.4
7
7
.0
1.4 to 4.5
1.1 to 3.2
3.5
1.1 to 3.8
1.4 to 4.4
.0
1.4 to 4.5
.5
1.1 to 3.2
3.5
1.1 to 3.8
1.4 to 4.4
1.4 to 4.5
apacitykW
0.5 to 4.4
0.5 to 4.7
0.9 to 5.1
0.9 to 5.2
0.5 to 4.4
0.5 to 4.7
0.9 to 5.1
.4
0.9 to 5.2
0.5 to 4.4
4.2
0.5 to 4.7
0.9 to 5.1
0.9 to 5.2
unningcurren
.051.10 to 4.30
.261.10 to 6.06
.12
1.49 to 6.11)1070
.17
1.49 to 6.16
.921.06 to 4.11
.03
1.06 to 5.80)1100
4.90
1.43 to 5.84)1070
.941.43 to 5.89
2.79
1.01 to 3.94)570
4.82
1.01 to 5.56)1100
.691.37 to 5.60
1.37 to 5.64)1080
unningcurren
.07
0.84 to 6.00
.860.84 to 6.33
.591.10 to 5.76
4.731.10 to 5.86)1010
.890.81 to 5.74
.600.81 to 6.05
4.39
1.06 to 5.51
.531.06 to 5.60
.730.77 to 5.50
.37
0.77 to 5.80)1250
.211.01 to 5.28
4.34
1.01 to 5.37)1010
oweronsumptio
70
70
70
owerConsumptio
80
W
170 to 880
170 to 1280
230 to 1290
230 to 1300
170 to 880
170 to 1280
230 to 1290
230 to 1300
170 to 880
170 to 1280
230 to 1290
230 to 1300
W
130 to 1280
130 to 1350
170 to 1230
170 to 1250
130 to 1280
130 to 1350
170 to 1230
170 to 1250
130 to 1280
130 to 1350
170 to 1230
170 to 1250
The above specification values are those under the conditions
Cooling Indoor: DB/WB=27/19°C
Outdoor: DB=35°C
Heating Indoor: DB=20°C
Outdoor: DB/WB=7/6°C
– 8 –
ooling> RAS-M18EAV-E , RAS-M18EACV-
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its
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peration
o
ooling
Volt
220
24
Operation
tatu
1
2 unit
1 unit
2 unit
1 unit
2 unit
Operating indoo
nit
3132.60 2.60 5.2
3 10 2.85 2.35 5.2
3132.60 2.60 5.2
3
3 10 2.85 2.35 5.2
unit
nit capacity (kW
2.7
.7
.
10 2.55 2.55 5.1
.
10 3.25
.7
.7
.5
.
.
.7
.
1
.
1
.95 5.2
4.5
3.7
apacity
kW
.7
1.1 to 3.2
.7
1.1 to 4.2
1.1 to 4.9
1.4 to 6.1
1.4 to 6.2)7.42(1.69 to 10.06
1.4 to 6.2
1.4 to 6.2)7.42
.7
1.1 to 3.2
.7
1.1 to 4.2
1.1 to 4.9
1.4 to 6.1
1.4 to 6.2
1.4 to 6.2
1.4 to 6.2
1.1 to 3.2
1.1 to 4.2
1.1 to 4.9)
.1
1.4 to 6.1
1.4 to 6.2
1.4 to 6.2
.2
1.4 to 6.2
unning curren
3.03
1.43 to 3.83
.101.43 to 6.49
.961.43 to 7.88)1
.19
1.69 to 9.97)1550
1.69 to 10.06)1600
1.69 to 10.06)1600
.901.37 to 3.66
4.881.37 to 6.21)1100
6.65
1.37 to 7.54)1500
.881.61 to 9.54
.10
1.61 to 9.63)1600
.10
1.61 to 9.63)1600
.101.61 to 9.63
2.78
1.31 to 3.51
4.68
1.31 to 5.95)1100
.381.31 to 7.23
.591.55 to 9.14)1
6.80
1.55 to 9.23)1600
.801.55 to 9.23
.801.55 to 9.23)1
ower Consumptio
00
220 to 800
220 to 1400
220 to 1700
260 to 2150
260 to 2170
260 to 2170
260 to 2170
220 to 800)
220 to 1400
220 to 1700
260 to 2150
260 to 2170
260 to 2170
260 to 2170
00
220 to 800
220 to 1400
220 to 1700
260 to 2150
260 to 2170
260 to 2170
260 to 2170
Heating>RAS-M18EAV-
eration
o
olt
2
240
eration
tatu
1 unit
2
nit
1 unit
2 un
1
2 unit
nit
Operating indoo
3133.35
3
3 10 3.5
3133.35
unit
1
10 3.8
10 3.25
10 3.8
nit capacity (kW)
.
.
.
.
.
.35 6.7
.
.
5.0
.
.19 6.7
.
2.82 6.7
.0
.
5.5
.25 6.5
.
.35 6.7
2.82 6.7
apacity
kW
0.7 to 5.2
0.7 to 6.5
0.7 to 6.9)8.81
0.9 to 8.2
.7
0.9 to 8.5
0.9 to 8.5)8.58
.7
0.9 to 8.5
0.7 to 5.2
5.0
0.7 to 6.5)7.99
0.7 to 6.9
0.9 to 8.2)7.991.24 to 10.60)1
0.9 to 8.5)8.21
.7
0.9 to 8.5
0.9 to 8.5)8.21
4.0
0.7 to 5.2
0.7 to 6.5)7.65(1.01 to 10.76
5.5
0.7 to 6.9)8.08
0.9 to 8.2)7.65
.7
0.9 to 8.5)7.87 (1.19 to 10.42
0.9 to 8.5)7.87
0.9 to 8.5)7.87
unning curren
.571.10 to 7.88
.351.10 to 11.73
1.10 to 11.73)1900
.351.30 to 11.09
.581.30 to 11.36
1.30 to 11.36)1850
.58(1.30 to 11.36
.32
1.06 to 7.54)1200
1.06 to 11.22)1800
.43(1.06 to 11.22
1.24 to 10.87)1850
.21(1.24 to 10.87
1.24 to 10.87)1850
.10
1.01 to 7.23)1200
1.01 to 10.76)1900
1.19 to 10.16)1800
1.19 to 10.42)1850
1.19 to 10.42)1850
ower Consumptio
170 to 1700
170 to 2530
170 to 2530)
200 to 2390
200 to 2450
200 to 2450
200 to 2450
170 to 1700
170 to 2530
170 to 2530)
200 to 2390
200 to 2450
200 to 2450
200 to 2450
170 to 1700
170 to 2530
170 to 2530
200 to 2390
200 to 2450
200 to 2450
200 to 2450
The above specification values are those under the conditions
Cooling Indoor: DB/WB=27/19°C
Outdoor: DB=35°C
Heating Indoor: DB=20°C
Outdoor: DB/WB=7/6°C
– 9 –
2-2-1. Operation Characteristic Curve
<Cooling> RAS-M14EAV-E, RAS-M14EACV-E <Heating> RAS-M14EAV-E
8
8
7
6
5
4
Current (A)
3
2
1
0
0102030405060708090
• Conditions
Indoor : DB 27˚C/WB 19˚C
Outdoor : DB 35˚C
Air flow : High
Pipe length : 7.5m x 2
2 units operating
230V
7
6
5
4
Current (A)
3
2
1
0
0102030405060708090
Compressor speed (rps)
2-2-2. Capacity Variation Ratio According to Temperature
• Conditions
Indoor : DB 20˚C
Outdoor : DB 7˚C/WB 6˚C
Air flow : High
Pipe length : 7.5m x 2
2 units operating
230V
Compressor speed (rps)
RAS-M14EAV-E, RAS-M14EACV-E
<Cooling> <Cooling>
115
• Conditions
110
105
Indoor : DB 27˚C
Outdoor : DB 35˚C
Indoor air flow : High
Pipe length : 7.5m x 2
2 units operating
100
95
Capacity ratio (%)
90
85
0
14 16 18 20 22 24
Indoor air wet bulb temp. (˚C)
105
100
95
90
85
80
75
Capacity ratio (%)
70
65
60
55
50
32 33 3534 3736 38 39 40 41 42 43
• Conditions
Indoor : DB 27˚C/WB 19˚C
Indoor air flow : High
Pipe length : 7.5m x 2
2 units operating
Outdoor temp. (˚C)
Capacity ratio : 100% = 4.0 kW
*
– 10 –
2-2-3. Operation Characteristic Curve
<Cooling> RAS-M18EAV-E, RAS-M18EACV-E <Heating> RAS-M18EAV-E
12
12
11
10
9
8
7
6
5
Current (A)
4
3
2
1
0
• Conditions
Indoor : DB 27˚C/WB 19˚C
Outdoor : DB 35˚C
Air flow : High
Pipe length : 7.5m x 2
2 units operating
230V
0102030405060708090
11
10
9
8
7
6
5
Current (A)
4
3
2
1
0
020406080100120140
Compressor speed (rps)
2-2-4. Capacity Variation Ratio According to Temperature
• Conditions
Indoor : DB 20˚C
Outdoor : DB 7˚C/WB 6˚C
Air flow : High
Pipe length : 7.5m x 2
2 units operating
230V
Compressor speed (rps)
RAS-M18EAV-E, RAS-M18EACV-E
<Cooling> <Cooling>
115
• Conditions
110
105
Indoor : DB 27˚C
Outdoor : DB 35˚C
Indoor air flow : High
Pipe length : 7.5m x 2
2 units operating
100
95
Capacity ratio (%)
90
85
0
14 16 18 20 22 24
Indoor air wet bulb temp. (˚C)
105
100
95
90
85
80
75
Capacity ratio (%)
70
65
60
55
50
32 33 3534 3736 38 39 40 41 42 43
• Conditions
Indoor : DB 27˚C/WB 19˚C
Indoor air flow : High
Pipe length : 7.5m x 2
2 units operating
Outdoor temp. (˚C)
Capacity ratio : 100% = 5.2 kW
*
– 11 –
3. REFRIGERANT R410A
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.
3-1. 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. T o prev ent
mischarging, the diameter of the service port
differs from that of R22.
(3 ) If a refrigeration gas leakage occurs during
installation/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 or 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 ma y result in water leakage ,
electric shock and fire, etc.
3-2. Refrigerant Piping Installation
3-2-1. 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 3-2-1. Nev er use copper
pipes thinner than 0.8 mm even when it is
available on the market.
– 12 –
T ab le 3-2-1 Thicknesses of annealed copper pipes
Thickness (mm)
Nominal diameter
1/4
3/8
1/2
5/8
(2) Joints
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 3-2-3 to 3-26 below .
Outer diameter (mm)
6.35
9.52
12.70
15.88
R410A R22
0.80 0.80
0.80 0.80
0.80 0.80
1.00 1.00
b) Socket Joints
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
T able 3-2-2.
T ab le 3-2-2 Minim um thicknesses of soc ket joints
Nominal diameter
1/4
3/8
1/2
5/8
Reference outer diameter of
copper pipe jointed (mm)
3-2-2. 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 .
Minimum joint thickness
(mm)
6.35
9.52
12.70
15.88
(1 ) Flare Processing Procedures and Precautions
a) Cutting the Pipe
By means of a pipe cutter, slo wly 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
0.50
0.60
0.70
0.80
– 13 –
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.
T able 3-2-3 Dimensions related to flare pr ocessing f or R410A
ØD
A
Fig. 3-2-1 Flare processing dimensions
Nominal
diameter
1/4
3/8
1/2
5/8
Nominal
diameter
1/4
3/8
Outer
diameter
(mm)
6.35
9.52
12.70
15.88
Thickness
(mm)
0.8
0.8
0.8
1.0
Flare tool for R410A
clutch type
0 to 0.5 1.0 to 1.5 1.5 to 2.0
0 to 0.5 1.0 to 1.5 1.5 to 2.0
0 to 0.5 1.0 to 1.5 2.0 to 2.5
0 to 0.5 1.0 to 1.5 2.0 to 2.5
T able 3-2-4 Dimensions related to flare pr ocessing f or R22
Outer
diameter
(mm)
6.35
9.52
Thickness
(mm)
0.8
0.8
Flare tool for R410A
clutch type
0 to 0.5 0.5 to 1.0 1.0 to 1.5
0 to 0.5 0.5 to 1.0 1.0 to 1.5
A (mm)
Conventional flare tool
Clutch type Wing nut type
A (mm)
Conventional flare tool
Clutch type Wing nut type
1/2
5/8
Nominal
diameter
1/4
3/8
1/2
5/8
12.70
15.88
T ab le 3-2-5 Flare and flare nut dimensions f or R410A
Outer
diameter
(mm)
6.35
9.52
12.70
15.88
0.8
1.0
Thickness
(mm)
0.8
0.8
0.8
1.0
0 to 0.5 0.5 to 1.0 1.5 to 2.0
0 to 0.5 0.5 to 1.0 1.5 to 2.0
Dimension (mm)
ABCD
9.1 9.2 6.5 13
13.2 13.5 9.7 20
16.6 16.0 12.9 23
19.7 19.0 16.0 25
– 14 –
Flare nut
width
(mm)
17
22
26
29
T ab le 3-2-6 Flare and flare nut dimensions f or R22
Nominal
diameter
1/4
3/8
1/2
5/8
3/4
Outer
diameter
(mm)
6.35
9.52
12.70
15.88
19.05
Thickness
(mm)
0.8
0.8
0.8
1.0
1.0
45˚ to 46˚
B A
Dimension (mm)
ABCD
9.0 9.2 6.5 13
13.0 13.5 9.7 20
16.2 16.0 12.9 20
19.7 19.0 16.0 23
23.3 24.0 19.2 34
D
C
Flare nut
width
(mm)
17
22
24
27
36
Fig. 3-2-2 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 .
T able 3-2-7 Tightening torque of flare for R410A [Reference v alues]
Nominal
diameter
Outer
diameter
(mm)
Tightening torque
N•m (kgf•cm)
43˚ to 45˚
When it is strong, the flare nut may crack and
may be made non-remova ble . When choosing
the tightening torque, comply with values
designated by manufacturers. Table 3-2-7
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•cm)
1/4
3/8
1/2
5/8
6.35
9.52
12.70
15.88
14 to 18 (140 to 180)
33 to 42 (330 to 420)
50 to 62 (500 to 620)
63 to 77 (630 to 770)
– 15 –
16 (160), 18 (180)
42 (420)
55 (550)
65 (650)
3-3. Tools
3-3-1. Required T ools
The service port diameter of pac k ed 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 Ø12.7 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 con ventional refrigerant (R22))
(2) Tools exclusive for R410A, but can be also used f or con v entional refrigerant (R22)
(3 ) Tools commonly used for R410A and for conv entional 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
Conventional air
conditioner installation
Whether new equipment
can be used with
conventional refrigerant
!
(Note 1)
*
X
X
!
!
X
!
X
No.
1
2
3
4
5
6
7
8
9
10
Used tool
Flare tool
Copper pipe gauge for
adjusting projection
margin
Torque wrench
(For Ø12.7)
Gauge manifold
Charge hose
Vacuum pump adapter
Electronic balance for
refrigerant charging
Refrigerant cylinder
Leakage detector
Charging cylinder
Usage
Pipe flaring
Flaring by
conventional flare
tool
Connection of flare
nut
Evacuating,
refrigerant charge,
run check, etc.
Vacuum evacuating
Refrigerant charge
Refrigerant charge
Gas leakage check
Refrigerant charge
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
R410A
Whether
conventional
equipment
can be used
(Note 1)
*
(Note 1)
*
air conditioner installation
Existence of
new equipment
for R410A
(Note 2)
X
X
X
X
X
X
X
(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
Use vacuum pump by
attaching vacuum pump adapter.
(2) Torque wrench (For Ø6.35, Ø9.52)
(3) Pipe cutter
(4) Reamer
(5) Pipe bender
(6) Level vial
(7) Screwdriver (+, –)
(8) Spanner or Monkey wrench
(9) Hole core drill (Ø65)
(10) Hexagon wrench
(Opposite side 4mm)
(11) Tape measure
(12) Metal saw
Also prepare the following equipments for other installation method and run check.
(1) Clamp meter
(2) Thermometer
(3) Insulation resistance tester
(4) Electroscope
– 16 –
3-4. 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.
Connect the charge hose to packed valve service
port at the outdoor unit’s gas side.
Connect the charge hose to the vacuum pump
adapter.
Open fully both packed valves at liquid and gas
sides.
When the compound gauge’s pointer has indicated
–0.1 Mpa (–76 cmHg), place the handle Low in the
fully closed position, and turn off the vacuum pump’s
power switch.
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 the
fully opened position, and turn on the vacuum pump’s
power switch. Then, evacuating the refrigerant in the
cycle.
(For refrigerant charging, see the figure below.)
(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)
(Liquid side)
(OUTDOOR unit)
Opened
Refrigerant cylinder
(With siphon pipe)
Check valve
Open/Close valve
for charging
Electronic balance for refrigerant charging
Fig. 3-4-1 Configuration of refrigerant charging
(Gas side)
Opened
Service port
– 17 –
(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
Gauge manifold
OUTDOOR unit
cylinder
Refrigerant
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.
3-5. Brazing of Pipes
3-5-1. Materi a ls f or B r az i ng
(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.
Electronic
balance
Siphon
Fig. 3-4-2
(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) 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.
3-5-2. 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.
– 18 –
(2 ) Characteristics required for flux
Nitrogen gas
cylinder
Pipe
Flow meter
M
Stop valve
From Nitrogen cylinder
Nitrogen
gas
Rubber plug
• 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 ) T ypes 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.
(4) Piping materials for brazing and used brazing
filler/flux
3-5-3. 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 onto 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
(0.2kgf/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.
Copper - Copper
(1) Do not enter flux into the refrigeration cycle.
(2) When chlorine contained in the flux remains
(3) When adding water to the flux, use water
(4) Remove the flux after brazing.
Piping
material
Used brazing Used
filler flux
Phosphor copper Do not use
Copper - Iron
Iron - Iron
Silver Paste flux
Silver Vapor flux
within the pipe, the lubricating oil deteriorates. Therefore, use a flux which does not
contain chlorine.
which does not contain chlorine (e.g. distilled
water or ion-exchange water).
Fig. 3-5-1 Prevention of oxidation during brazing
– 19 –
4-1. Indoor Unit
RAS-B10EKVP-E
RAS-B13EKVP-E
RAS-B16EKVP-E
RAS-M10EKCVP-E
RAS-M13EKCVP-E
RAS-M16EKCVP-E
4. CONSTRUCTION VIEWS
– 20 –
Parts
name of
remote
control
WH-H03JE
(Heat pump
model)
WC-H03JE
(Cooling-only
model)
4-2. Outdoor Unit
RAS-M14EAV-E, RAS-M18EAV-E (Heat pump models)
RAS-M14EACV-E, RAS-M18EACV-E (Cooling-only models)
– 21 –
5. WIRING DIAGRAM
5-1. Indoor Unit
RAS-B10EKVP-E, RAS-B13EKVP-E, RAS-B16EKVP-E (Heat pump models)
RAS-M10EKCVP, RAS-M13EKCVP-E, RAS-M16EKCVP-E (Cooling-only models)
Micro SW
12345
12345
WHI
YEL
12345
12345
CN07
(WHI)
POWER SUPPLY
CIRCUIT
DC5V
DC12V
Heat
exchanger
GRN & YEL
BRW
CN21
1
1
BLU
2
2
(RED)
CN34
FAN MOTOR
RED
CN10
(WHI)
DC MOTOR
BLK
WHI
YEL
BLU
1
345
1
345
66
YEL
YEL
YEL
LOUVER MOTOR
To outdoor unit
Color
Identification
RED
:
RED
WHITE
:
WHI
BLACK
:
BLK
BLUE
:
BLU
BROWN
:
BRW
ORANGE
:
ORN
PURPUL
:
PUR
YELLOW
:
YEL
GRAY
:
GRY
PINK
:
PNK
GREEN&
GRN&
:
YELLOW
YEL
Air purifier
Electrode
High-voltage
Power supply
12345
BLK
12345
BLK
3
21
BLOCK
INDOOR
TERMINAL
6
6
BRW
BRW
BRW
RED
1 2 3 4
1 2 3 4
RED
CN23
3 1
BLK WHI
CN22
Ion electrode
CN33
(WHI)
1 2 3 4
1 2 3 4
CN01
(BLU)
F01
FUSE
AC 250V
1
2
1
2
BLK
BLK
HEAT EXCHANGER
T3.15A
1
2
1
(WHI)
BLK
2
BLK
THERMO SENSOR
CN03
SENSOR (TC)
LINE
987654321
987654321
CN13
(WHI)
BLU
BLU
BLU
123456789
123456789
(WHI)
CN100
(TA)
Wireless Unit Assembly
DB01
FILTER
BLU
BLU
BLU
TNR
BLU
CN08 (WHI)
(MCC-5020)
MAIN P.C. BOARD
BLU
WHI
10 10
MCC-899
21 43
– 22 –
5-2. Outdoor Unit
RAS-M14EAV-E, RAS-M18EAV-E (Heat pump models)
RAS-M14EACV-E, RAS-M18EACV-E (Cooling-only models)
– 23 –
6. SPECIFICATIONS OF ELECTRICAL PARTS
6-1. Indoor Unit
RAS-B16EKVP-E, RAS-B13EKVP-E, RAS-B10EKVP-E
RAS-M16EKCVP-E, RAS-M13EKCVP-E, RAS-M10EKCVP-E
No.
1
Fan motor (for indoor)
Room temp. sensor
2
(TA-sensor)
Heat exchanger temp. sensor
3
(TC-sensor)
4
Louver motor
Parts name
Type
MF-280-30-5
( – )
( – )
MP24GA
Specifications
DC280–340V , 30W
10kΩ at 25°C
10kΩ at 25°C
Output (Rated) 1W , 16poles, 1phase DC12V
– 24 –
6-2. Outdoor Unit
RAS-M14EAV-E, RAS-M14EACV-E, RAS-M18EAV-E, RAS-M18EACV-E
No.
SC coil (Noise filter) (L03)
1
SC coil (Noise filter) (L01)
DC-DC transformer
2
3
Outside fan motor
*1
4
Relay (4-way valve)
5
Relay (Po w er rela y)
6
Discharge temp. sensor (TD-sensor)
Outside air temp. sensor
7
(TO-sensor)
8
TGa-sensor (Heat pump models)
9
TGb-sensor (Heat pump models)
10
TGa-sensor (Cooling-only models)
Parts name
ADR2520-R15TB or SC-20-01J-A
ADR25H-200R8TB
SWT-72 or SWT -83
ICF-140-43-4
G5N-1A
DI12D1-O or G4A-1A-PE
(Inverter attached)
(Inverter attached)
(Inverter attached)
(Inverter attached)
(Inverter attached)
Model name
AC 250V, 20A, 0.15mH
AC 250V, 20A, 0.88mH
Primary side DC 280VSecondary side:
7.5V x 1, 13V x 126.5V x 3, 16V x 1, 15V x 1
DC 140V , 43W
Coil: DC 12V, Contact: 2A, AC250V
Coil: DC 12V, Contact: 20A, A C250V
64kΩ (20°C)
10kΩ (25°C)
64kΩ (25°C)
64kΩ (25°C)
10kΩ (25°C)
Rating
11
TGb-sensor (Cooling-only models)
*1
Evaporator temp. sensor
12
(TE-sensor)
13
Suction temp. sensor (TS-sensor)
14
Terminal b lock (9P)
15
Fuse
16
Electrolytic capacitor
17
IGBT (Q200~Q205)
18
Compressor (M18)
19
Compressor (M14)
20
Compressor thermo.
21
Rectifier (DB01, DB02)
(Inverter attached)
(Inverter attached)
(Inverter attached)
—
For protection of switching power source (F03)
For protection of inverter input overcurrent
For protection of power source
LLQ2G761KHU
GT20J321
DA130A1F-25F
DA111A1F-20F1
US622KXTMQO
D25 X B60
10kΩ (25°C)
10kΩ (25°C)
10kΩ (25°C)
20A, AC 250V
3.15A, AC 250V
25A, AC 25V
6.3A, AC 250V
DC 400V , 760µF
600V , 20A
3 phases, 4 poles, 1,100W
3 phases, 4 poles, 750W
OFF: 125±4°C, ON: 90±5°C
Diode: 600V, 25A
22
IGBT (Q404)
23
Reactor (Main)
24
Reactor (Sub)
NOTE: *1 Heat pump models only.
GT40Q321 or GT30J121
CH-57
CH-43-Z-K
– 25 –
IGBT: 600V, 40A
L = 10mH, 16A
L = 10mH, 1A
7. REFRIGERANT CYCLE DIAGRAM
7-1. Refrigerant Cycle Diagram
RAS-B13EKVP-E, RAS-B10EKVP-E
RAS-M14EAV-E
To B room To B room
P
Pressure measurement
Gauge attaching port
Vacuum pump connecting port
Deoxidized copper pipe
Both A and B rooms
Outer dia. : 9.52mm
Thickness : 0.8mm
*1
INDOOR UNIT
Indoor heat
exchanger
Indoor fan
Deoxidized copper pipe
Both A and B rooms
Outer dia. : 6.35mm
Thickness : 0.8mm
Sectional shape
of heat insulator
T1Tca
Temp. measurement
Per 1 unit
Ta
Allowable height
Max.: 20m
Total: 30m
Chargeless
= 20m
Charge
= 20g/m
(21 to 30m)
difference : 10m
Allowable pipe length
Muffler
TGaTGb
4-way valve
(STF-0108Z)
Muffler
Td
Compressor
DA111A1F-20F1
TS
Outdoor heat
exchanger
Temp. measurement
T2
Propeller fan
OUTDOOR UNIT
*1 The TC sensor is at the center of the indoor unit’s heat exchanger.
TO
TE
NOTE :
Capillary
Ø2.2 x 200
Strainer
Pulse motor
valve at liquid side
(CAM-B22YGTF-2)
Capillary
Ø2.2 x 200
Refrigerant amount : 0.90kg
Gas leak check position
Refrigerant flow (Cooling)
Refrigerant flow (Heating)
NOTE :
• The maximum pipe length of this air conditioner is 30m. When the pipe length exceeds 20m, the additional
charge of refrigerant, 20g per 1m for the part of pipe exceeded 20m is required (Max. 200g)
– 26 –
RAS-M13EKCVP-E, RAS-M10EKCVP-E
RAS- M14EACV-E
To B room To B room
P
Pressure measurement
Gauge attaching port
Vacuum pump connecting port
Deoxidized copper pipe
Both A and B rooms
Outer dia. : 9.52mm
Thickness : 0.8mm
*1
INDOOR UNIT
Indoor heat
exchanger
Indoor fan
Deoxidized copper pipe
Both A and B rooms
Outer dia. : 6.35mm
Thickness : 0.8mm
Sectional shape
of heat insulator
TGaTGb
T1Tca
Temp. measurement
Per 1 unit
Ta
Allowable height
Capillary
Ø2.2 x 200
Max.: 20m
Total: 30m
Chargeless
= 20m
Charge
= 20g/m
(21 to 30m)
difference : 10m
Allowable pipe length
Muffler
Td
Compressor
DA111A1F-20F1
TS
Outdoor heat
exchanger
Temp. measurement
T2
Propeller fan
OUTDOOR UNIT
*1 The TC sensor is at the center of the indoor unit’s heat exchanger.
TO
NOTE :
Strainer
Pulse motor
valve at liquid side
(CAM-B22YGTF-2)
Capillary
Ø2.2 x 200
Refrigerant amount : 0.90kg
Gas leak check position
Refrigerant flow
NOTE :
• The maximum pipe length of this air conditioner is 30m. When the pipe length exceeds 20m, the additional
charge of refrigerant, 20g per 1m for the part of pipe exceeded 20m is required (Max. 200g)
– 27 –
RAS-B16EKVP-E, RAS-B13EKVP-E, RAS-B10KVP-E
RAS-M18EAV-E
*1
INDOOR UNIT
Indoor heat
exchanger
Indoor fan
Deoxidized copper pipe
Both A and B rooms
Outer dia. : 6.35mm
Thickness : 0.8mm
Sectional shape
of heat insulator
P
Pressure measurement
Gauge attaching port
Vacuum pump connecting port
Deoxidized copper pipe
Both A and B rooms
Outer dia. : 9.52mm (10,13)
Thickness : 0.8mm
: 12.7mm (16)
To B room To B room
T1Tca
Temp. measurement
Per 1 unit
Ta
Allowable height
Max.: 20m
Total: 30m
Chargeless
= 20m
Charge
= 20g/m
(21 to 30m)
difference : 10m
Allowable pipe length
Muffler
TGaTGb
4-way valve
(STF-0108Z)
Muffler
Td
Compressor
DA130A1F-25F
TS
Outdoor heat
exchanger
Temp. measurement
T2
Propeller fan
OUTDOOR UNIT
*1 The TC sensor is at the center of the indoor unit’s heat exchanger.
TO
TE
NOTE :
Capillary
Ø2.2 x 200
Strainer
Pulse motor
valve at liquid side
(CAM-B22YGTF-2)
Capillary
Ø2.2 x 200
Refrigerant amount : 1.20kg
Gas leak check position
Refrigerant flow (Cooling)
Refrigerant flow (Heating)
NOTE :
• The maximum pipe length of this air conditioner is 30m. When the pipe length exceeds 20m, the additional
charge of refrigerant, 20g per 1m for the part of pipe exceeded 20m is required (Max. 200g)
– 28 –
RAS-M16EKCVP-E, RAS-M13EKCVP-E, RAS-M10EKCVP-E
RAS-M18EACV-E
*1
INDOOR UNIT
Indoor heat
exchanger
Indoor fan
Deoxidized copper pipe
Both A and B rooms
Outer dia. : 6.35mm
Thickness : 0.8mm
Sectional shape
of heat insulator
Ta
P
Pressure measurement
Gauge attaching port
Vacuum pump connecting port
Deoxidized copper pipe
Both A and B rooms
Outer dia. : 9.52mm (10,13)
Thickness: 0.8mm
: 12.7mm (16)
To B room To B room
TGaTGb
T1Tca
Temp. measurement
Capillary
Ø2.2 x 200
Allowable height
difference : 10m
Allowable pipe length
Per 1 unit
Max.: 20m
Total: 30m
Chargeless
= 20m
Charge
= 20g/m
(21 to 30m)
Muffler
Td
Compressor
DA130A1F-25F
TS
Outdoor heat
exchanger
Temp. measurement
T2
Propeller fan
OUTDOOR UNIT
*1 The TC sensor is at the center of the indoor unit’s heat exchanger.
TO
NOTE :
Strainer
Pulse motor
valve at liquid side
(CAM-B22YGTF-2)
Capillary
Ø2.2 x 200
Refrigerant amount : 1.20kg
Gas leak check position
Refrigerant flow
NOTE :
• The maximum pipe length of this air conditioner is 30m. When the pipe length exceeds 20m, the additional
charge of refrigerant, 20g per 1m for the part of pipe exceeded 20m is required (Max. 200g)
– 29 –
7-2. Operation Data
E
Temp
dition
g
s
)
)
-
a
fan
)
r
A
T
9 /
it
9
13
45
h
m
1
11
49
h
m
s
1
16
49
pm
0.9
6
9
pm
Temp
dition
g
s
)
-
a
fan
)
r
A
T1T
/6
it
4
h
m
7
43
1
h
m
s
1
32
1
h
pm
1
32
1
pm
E
T
n
s
)
)
f
fan
)
r
t
3
pm
5
0
0
pm
0
gh
m
s
h
m
1
13
50
h
m
1
13
50
h
pm
1
13
50
pm
T
n
s
)
)
-
fa
fan
)
r
(
T2 (
/
it
4
m
6
gh
m
1
6
3
2
h
m
s
8
39
1
h
m
8
40
1
h
pm
3.6
8
0
1
pm
0
1
pm
:
(
)
s
ooling> RAS-M14EAV-E, RAS-M14EACV-
erature
con
indoor outdoo
27 / 1
–
Heating> RAS-M14EAV-E
erature
con
ndoor outdoo
20/–
Cooling> RAS-M18EAV-E, RAS-M18EACV-
emperature
onditio
ndoor outdoo
27/19
.of
peratin
t
un
unit
.of
peratin
t
un
unit
N
.of
perating
n
t
uni
unit
perating combination
perating combination
perating combination
Unit
BT1
1
Unit
0
Unit
0 0.9 to 1.1
3 0.8 to 1.
6 0.8 to 1.
0100.9 to 1.1
tandard
pressure
Mpa
.7 to 0.
.9 to 1.
.9 to 1.
to 1.1
tandard
pressure
Mpa)
.2 to 2.
.5 to 2.
.9 to 2.
.9 to 2.
tandard
ure
Mpa
.9 to 1.
.9 to 1.
.9 to 1.
eat exchanger
to
to
to
4 to 1
eat exchanger
6 to 38
to
to
to
Heat exchanger
1 to 13 41 to 4
to 1
7 to 9 47 to 49
1 to 13 48 to 50
to
to
to
e temp.
e temp.
pipe temp.
2
to
7 to
7 to
47 to 4
2
to 2
to
to
to
45 to 47
to
to
to
In
oor
f
In
oor
f
oor
an
ut
n
ig
ig
n
ig
ig
ig
i
ig
ig
ig
oor
rp
50rp
50r
50r
ut
oor
50rp
50rp
50r
50r
ut
oor
00r
50r
50rp
50rp
50rp
50r
50r
compressor
volution
rps
compressor
volution
(rps
60
evolution
rps
3
Heating> RAS-M18EAV-E
emperature
onditio
ndoor outdoo
20/–
6
N
.of
perating
t
un
unit
perating combination
Unit
0 3.2 to 3.
3 3.4 to 3.
1
610.6 to 2.8
pressure
tandard
Mpa
.4 to 3.
.6 to 2.
.6 to 2.
to 2.
Heat exchanger
4 to 46
7 to
to
to 4
8 to 4
e temp.
to 2
to 2
to
to
to
1 to
1 to
T1
50 to 53
51 to 5
NOTES
1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent.
Thermistor thermometer
(2) Connecting piping condition : 7.5meters
unit
n
oor
n
i
ig
ig
ig
ut
oor
50rp
50rp
50rp
50rp
50r
50r
50r
evolution
rps
62
8
101
101
– 30 –
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