Toshiba RAS-05TKVG-EE, RAS-07TKVG-EE, RAS-10TKVG-EE, RAS-13TKVG-EE, RAS-16TKVG-EE SERVICE MANUAL

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Page 1
SERVICE MANUAL
FILE NO. SVM-19040
SPLIT TYPE
Indoor Unit
RAS-05TKVG-EE RAS-07TKVG-EE RAS-10TKVG-EE RAS-13TKVG-EE RAS-16TKVG-EE RAS-18TKVG-EE
RAS-05TAVG-EE RAS-07TAVG-EE RAS-10TAVG-EE RAS-13TAVG-EE RAS-16TAVG-EE RAS-18TAVG-EE
R32
March, 2019
Page 2
CONTENTS
FILE NO. SVM-19040
- 2 -
1. SAFETY PRECAUTIONS .......................................................................... 3
2. SPECIFICATIONS ..................................................................................... 6
REFRIGERANT R32 ................................................................................ 10
3.
CONSTRUCTION VIEWS ........................................................................ 18
4.
WIRING DIAGRAM .................................................................................. 21
5.
SPECIFICATIONS OF ELECTRICAL PARTS ......................................... 24
6.
REFRIGERANT CYCLE DIAGRAM ........................................................ 25
7.
8.
9.
10.
11.
12.
13.
CONTROL BLOCK DIAGRAM ................................................................ 30
OPERATION DESCRIPTION................................................................... 33
INSTALLATION PROCEDURE ................................................................ 58
HOW TO DIAGNOSE THE TROUBLE ...................................................... 74
HOW TO REPLACE THE MAIN PARTS..................................................108
EXPLODED VIEWS AND PARTS LIST ................................................. 127
Page 3
1. SAFETY PRECAUTIONS
FILE NO. SVM-19040
- 3 -
Read the precautions in this manual carefully before operating the unit.
Information included in the Operation Manual and/or Installation Manual.
This appliance is fi lled with R32. (Flammable Material)
Service personnel should be handing this equipment with reference to the Installation Manual.
For general public use
Power supply cord and connecting cable of appliance use shall be at least polychloroprene sheathed flexible cord (design H07RN-F) or cord designation 60245 IEC66. (Shall be installed in accordance with national wiring regulations.)
• 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.
Important information regarding the refrigerant used This product contains fl uorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere. Refrigerant type: R32
(1)
GWP
value: 675*
(1)
GWP = global warming potential
The refrigerant quantity is in dicated on the unit name plate. * This value is based on F gas regulation 517/2014
CAUTION
CAUTION
TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY
This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm in all poles.
Page 4
DANGER
FILE NO. SVM-19040
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• 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 ELECTRICAL 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 hand.
• CORRECTLY CONNECT THE CONNECTING CABLE. IF THE CONNECTING CABLE IS INCOR-
RECTLY 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 CARE-
FUL NOT TO ALLOW THE SPECIFIED REFRIGERANT (R32) 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.
WARNING
• Never modify this unit by removing any of the safety guards 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.
• 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 shock.
Page 5
Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, ame, sparks, or
FILE NO. SVM-19040
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other sources or ignition. Else, it may explode and cause injury or death. For R32 model, use pipes, are nut and tools which is speci ed for R32 refrigerant. Using of existing (R22)
piping, are nut and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury. Thickness of copper pipes used R32 must be more than 0.8mm. Never use copper pipes thinner than 0.8mm.
After completion of installation or service, confirm there is no leakage of refrigerant gas. It may generate toxic
gas when the refrigerant contacts with fire.
Comply with national gas regulations.
CAUTION
• E
xposure of unit to water or other moisture before installation may res
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 ins
the noise level of the unit or where noise or dischar
• T
o avoid personal injury
P
erform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, ac
, be careful when handling parts with sharp edges.
ged air might disturb neighbors.
cidents may occur due to the falling unit.
ult in an electrical short.
tall in a place that can amplify
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 antifreeze heater locally for a safe installation of the air conditioner. For details, contact the dealer.
Page 6
2. SPECIFICATIONS
FILE NO. SVM-19040
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2-1. Specification
Unit model Indoor
Outdoor Cooling capacity (kW) Cooling capacity range (kW) 0.76-2.60 Heating capacity (kW) 2.50 Heating capacity range (kW) Power supply Electric Indoor Operation mode Cooling Heating Cooling Heating characteristic Running current (A) 0.19-0.17 0.19-0.17 0.22-0.20 0.22-0.20
Power consumption (W) 25 25 30 30 Power factor (%) 60 60 62 62
Outdoor Operation mode Cooling Heating Cooling Heating
Running current (A) 1.81-1.67 2.26-2.08 2.48-2.30 3.08-2.82 Power consumption (W) 345 445 500 610 Power factor (%) 87 90 89 91
Starting current (A) COP (Cooling / Heating) 4.05/4.26 3.77/3.91 Operating Indoor High (Cooling / Heating) (dB-A) 37/37 38/38 noise Medium (Cooling / Heating) (dB-A) 30/30 31/31
Low (Cooling / Heating) (dB-A) 22/22 23/23
Outdoor (Cooling / Heating) (dB-A) 46/48 46/48
Indoor unit Unit model
Dimension Height (mm) 293 293
Width (mm) 798 798
Depth (mm) 230 230
Net weight (kg) 9 9 Fan motor output (W) 25 25 Air flow rate (Cooling / Heating)
Outdoor unit Unit model
Dimension Height (mm) 530 530
Width (mm) 660 660
Depth (mm) 240 240
Net weight (kg) 22 22 Compressor Motor output (W) 550 550
Type
Model KSK75D43UEZA
Fan motor output (W) 43
Air flow rate (Cooling / Heating) Piping Type Flare connection connection Indoor unit Liquid side (mm)
Gas side (mm)
Outdoor unit Liquid side (mm)
Gas side (mm) Maximum length (m) 15 15 Maximum charge-less length (m) 15 15 Maximum height difference (m) 12 12
Refrigerant Name of refrigerant R32 R32
Weight (kg) 0.40 0.40
Wiring Power supply 3 Wires: Includes earth (Outdoor) connection Interconnection 4 Wires: Includes earth Usable temperature range Indoor (Cooling / Heating)
Outdoor (Cooling / Heating)
Accessory Indoor unit
Installation plate
Wireless remote controller
Batteries 2
Remote controller holder
Active Carbon Catechin filter
Mounting screw
Remote controller holder Flat head wood screw
Installation manual 1
Owner's manual
(m3 / min)
(m3 / min)
(oC) (oC)
RAS-05TKVG-EE
RAS-05TAVG-EE
1.50 2.00
0.75-2.00
2.00
0.90-3.00 1Ph/220-240V/50Hz
1.92 2.35 2.65
RAS-05TKVG-EE RAS-07TKVG-EE
9/9 9/9
RAS-05TAVG-EE RAS-07TAVG-EE
Single rotary type with DC-inverter variable speed control
30/30 30/30
6.35 6.35 9.52 9.52 6.35 6.35 9.52 9.52
21-32/ -28 21-32/ -28
-15,46/-15,24
1
1
1
-
6(4x25L)
2(3.1x16L)
1
RAS-07TKVG-EE
RAS-07TAVG-EE
0.92-3.30
KSK75D43UEZA
-15,46/-15,24
3.14
* The specification may be subject to change without notice for purpose of improvement.
Page 7
2-1. Specification
FILE NO. SVM-19040
- 7 -
Unit model Indoor
Outdoor Cooling capacity (kW) Cooling capacity range (kW) 1.00-3.60 Heating capacity (kW) 3.60 Heating capacity range (kW) Power supply Electric Indoor Operation mode Cooling Heating Cooling Heating characteristic Running current (A) 0.25-0.23 0.25-0.23 0.28-0.26 0.28-0.20
Power consumption (W) 35 Power factor (%) 63 63 64 64
Outdoor Operation mode Cooling Heating Cooling Heating
Running current (A) 3.65-3.32 4.05-3.72 5.12-4.69 4.33-3.97 Power consumption (W) 735 825 1060 880 Power factor (%) 92 93 94 92
Starting current (A) COP (Cooling / Heating) 3.25/3.72 3.00/3.91 Operating Indoor High (Cooling / Heating) (dB-A) 39/39 41/42 noise Medium (Cooling / Heating) (dB-A) 32/32 33/34
Low (Cooling / Heating) (dB-A) 24/24 24/24
Outdoor (Cooling / Heating) (dB-A) 48/50 48/50
Indoor unit Unit model
Dimension Height (mm) 293 293
Width (mm) 798 798
Depth (mm) 230 230
Net weight (kg) 9 9 Fan motor output (W) 25 25 Air flow rate (Cooling / Heating)
Outdoor unit Unit model
Dimension Height (mm) 530 530
Width (mm) 660 660
Depth (mm) 240 240
Net weight (kg) 23 24 Compressor Motor output (W) 550 620
Type
Model KSK75D43UEZA
Fan motor output (W) 43
Air flow rate (Cooling / Heating) Piping Type Flare connection connection Indoor unit Liquid side (mm)
Gas side (mm)
Outdoor unit Liquid side (mm)
Gas side (mm) Maximum length (m) 15 15 Maximum charge-less length (m) 15 15 Maximum height difference (m) 12 12
Refrigerant Name of refrigerant R32 R32
Weight (kg) 0.43 0.46
Wiring Power supply 3 Wires: Includes earth (Outdoor) connection Interconnection 4 Wires: Includes earth Usable temperature range Indoor (Cooling / Heating)
Outdoor (Cooling / Heating)
Accessory Indoor unit
* The specification may be subject to change without notice for purpose of improvement.
Installation plate
Wireless remote controller
Batteries 2
Remote controller holder
Active Carbon Catechin filter
Mounting screw
Remote controller holder Flat head wood screw
Installation manual 1
Owner's manual
(m3 / min)
(m3 / min)
(oC) (oC)
RAS-10TKVG-EE
RAS-10TAVG-EE
2.50 3.30
0.80-3.00
3.20
1.00-3.90
1Ph/220-240V/50Hz
35
3.70 4.10 5.15
RAS-10TKVG-E RAS-13TKVG-E
9/9 10/10
RAS-10TAVG-E RAS-13TAVG-E
Single rotary type with DC-inverter variable speed control
30/30
6.35 6.35 9.52 9.52 6.35 6.35 9.52 9.52
21-32/ -28 21-32/ -28
-15,46/-15,24
6(4x25L)
2(3.1x16L)
RAS-13TKVG-EE
RAS-13TAVG-EE
1.10-4.50
40 40
KSK89D53UEZ
33/33
-15,46/-15,24
1
1
1
-
1
4.41
Page 8
2-1. Specification
FILE NO. SVM-19040
- 8 -
Unit model Indoor
Outdoor Cooling capacity (kW) Cooling capacity range (kW) Heating capacity (kW) Heating capacity range (kW) Power supply Electric Indoor Operation mode Co o ling H ea ting characteristic Running current (A) 0.31-0.29 0.31-0.29
Power consumption (W) 45 45 Power factor (%) 65 65
Outdoor Operation mode Cooling Heating
Running current (A) 6.34-5.81 6.39-5.86 Power consumption (W) 1355 1355 Power factor (%) 97 96
Starting current (A) COP (Cooling / Heating) 3.00/3.57 Operating Indoor High (Cooling / Heating) (dB-A) 43/43 noise Medium (Cooling / Heating) (dB-A) 35/35
Low (Cooling / Heating) (dB-A) 25/25
Outdoor (Cooling / Heating) (dB-A) 49/51
Indoor unit Unit model
Dimension Height (mm) 293
Width (mm) 798
Depth (mm) 230
Net weight (kg) 10 Fan motor output (W) 35 Air flow rate (Cooling / Heating)
Outdoor unit Unit model
Dimension Height (mm) 550
Width (mm) 780
Depth (mm) 290
Net weight (kg) 30 Compressor Motor output (W) 750
Type
Model KSN108D22UFZ
Fan motor output (W) 43
Air flow rate (Cooling / Heating) Piping Type Flare connection connection Indoor unit Liquid side (mm)
Gas side (mm)
Outdoor unit Liquid side (mm)
Gas side (mm) Maximum length (m) 20 Maximum charge-less length (m) 15 Maximum height difference (m) 12
Refrigerant Name of refrigerant
Weight (kg) 0.62
Wiring Power supply 3 Wires: Includes earth (Outdoor) connection Interconnection 4 Wires: Includes earth Usable temperature range Indoor (Cooling / Heating) 21-32/ -28
Outdoor (Cooling / Heating) -15,46/-15,24
Accessory Indoor unit
Installation plate 1
Wireless remote controller 1
Batteries
Remote controller holder 1
Active Carbon Catechin filter
Mounting screw
Remote controller holder Flat head wood screw
Installation manual 1
Owner's manual
(m3 / min)
(m3 / min)
(oC) (oC)
RAS-16TKVG-EE
RAS-16TAVG-EE
4.20
1.20-4.70
5.00
1.30-6.00
11Ph/220-240V/50Hz
6.35 6.41
RAS-16TKVG-E
13/13
RAS-16TAVG-E
Single rotary type with DC-inverter variable speed control
36/36
6.35 12.7 6.35 12.7
R32
2
-
6(4x25L)
2(3.1x16L)
1
RAS-18TKVG-EE
RAS-18TAVG-EE
Co o ling H ea ting
0.34-0.32 0.34-0.32 50 50 66 66
Cooling Heating
6.91-6.33 7.16-6.58
1500 1550
99 98
7.25-6.65 7.50-6.90
RAS-18TKVG-E
5.00
1.30-5.50
5.40
1.00-6.00
3.23/3.38
47/48 40/40 32/32 50/52
293 798 230
9
30
13/14
RAS-18TAVG-E
550 780 290
34
750
KSN108D22UFZ
43
36/36
Flare connection
6.35 12.7 6.35 12.7
20
15 12
R
32
0.88
21-32/ -28
-15,46/-15,24
1
1
2
1
-
6(4x25L)
2(3.1x16L)
1
1
* The specification may be subject to change without notice for purpose of improvement.
Page 9
2-2. Operation Characteristic Curve
FILE NO. SVM-19040
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<Cooling> <Heating>
10
RAS-18TKVG-EE
9
RAS-16TKVG-EE
8
RAS-05TKVG-EE
10
RAS-16TKVG-EE
9
8
RAS-18TKVG-EE
7
6
RAS-13TKVG-EE
5
RAS-10TKVG-EE
Current (A)
4
3
2
1
RAS-07TKVG-EE
Conditions Indoor : DB 27oC/WB 19 Outdoor : DB 35oC/WB 24 Indoor Air Flow : High Pipe Length : 5m
Pipe Length : 7.5m (18k Only)
Voltage : 230V
0
0 10 20 30 40 50 60 70 80 90 100 110
o
C
o
C
7
6
5
Current (A)
4
3
2
1
0
0 10 20 30 40 50 60 70 80 90 100 110
Compressor Speed (RPS)
2-3. Capacity Variation ratio According to Temperature.
<Cooling> <Heating>
105
120
RAS-05TKVG-EE
Conditions Indoor : DB 20oC/WB 15 Outdoor : DB 7oC/WB 6 Indoor Air Flow : High
Pipe Length : 5m
Pipe Length : 7.5m (18k Only)
Voltage : 230V
Compressor Speed (RPS)
RAS-13TKVG-EE
RAS-07TKVG-EE
RAS-10TKVG-EE
o
C
o
C
100
95
90
85
80
75
Cooling Capacity ratio (%)
70
65
Capacity ratio : 100 %=
1.50kW(RAS-05TKVG-EE)
2.00kW(RAS-07TKVG-EE)
60
2.50kW(RAS-10TKVG-EE)
3.30kW(RAS-13TKVG-EE)
55
4.20kW(RAS-16TKVG-EE)
5.00kW(RAS-18TKVG-EE)
50
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
Conditions Indoor : DB 27oC/WB 19 Outdoor : DB 35oC/WB 24 Indoor Air Flow : High Pipe Length : 5m
Pipe Length : 7.5m (18K only)
Voltage : 230V
Outside Temperature ( oC)
100
80
60
Heating Capacity ratio (%)
40
Capacity ratio : 100 %=
o
C
o
C
2.00kW(RAS-05TKVG-EE)
2.50kW(RAS-07TKVG-EE)
20
3.20kW(RAS-10TKVG-EE)
3.60kW(RAS-13TKVG-E
5.00kW(RAS-16TKVG-EE)
5.40kW(RAS-18TKVG-EE)
Conditions Indoor : DB 20oC/WB 15 Outdoor : DB 7oC/WB 6 Indoor Air Flow : High
E)
Pipe Length : 5m
Pipe Length : 7.5m (18K only)
Voltage : 230V
o
C
o
C
0
-25 -20 5 10
-15 -10 -5 0 Outside Temperature ( ºC)
Page 10
3. REFRIGERANT R32
FILE NO. SVM-19040
- 10 -
This air conditioner adopts the new refrigerant HFC (R32) which does not damage the ozone layer.
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
The basic installation servicing work procedures are the same as conventional R410A models.
As R32’s pressure is about 1.6 times higher than that of R22, improper installation/servicing may cause a serious trouble. By using tools and materi-als exclusive for R32, it is necessary to carry out installation/ servicing safely while taking the following precautions into consideration.
1. Never use refrigerant other than R32 in an air conditioner which is designed to operate with R32. If other refrigerant than R32 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. The refrigerant name R32 is indicated on the visible place of the outdoor unit of the air conditioner using R32 as refrigerant. To prevent mischarging, the diameter of the service port differs from that of R22.
R32 and other HFCs are heavier than air, and therefore they are inclined to settle near the floor surface. If the gas fills up the room or the bottom part of a room, it may also cause oxygen deficiency and may reach its combustion concentration.
In order to prevent oxygen deficiency and R32 combustion, keep the room well-ventilated for a healthy work environment.
In particular, using HFCs in a basement room or confined area creates a higher risk; be sure to furnish the room with local exhaust ventilation. If a refrigerant leak is confirmed in a room an inadequately ventilated location, do not use a flame until the area has been ventilated appropriately and the work environment has been improved. The same applies in case of brazing, ensure appropriate ventilation to prevent oxygen deficiency and R32 combustion. Check that there are no dangerous or combustible items nearby, and ensure a fire extinguisher is close at hand. Keep a sufficient distance away from causes of fire (ignition sources) suc and electric heaters in places where installation, repairs, or similar work on air-conditioning equipment is performed.
h as gas-burning equipment
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 moisture dust or oil 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 may 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 R32 incurs pres-sure higher than when using R22, it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R32 are as shown in Table 3-2-1. Never use copper pipes thinner than 0.8 mm even when it is available on the market.
Page 11
Table 3-2-1 Thicknesses of annealed copper pipes
FILE NO. SVM-19040
- 11 -
Thickness (mm)
Nominal diameter
1/4
3/8
1/2
5/8
Outer diameter (mm)
6.35
9.52
12.70
15.88
R32(R410A) R22
0.80 0.80
0.80 0.80
0.80 0.80
1.00 1.00
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 3-2-6 below.
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 Table 3-2-2.
Table 3-2-2 Minimum thicknesses of socket joints
Nominal diameter
1/4
3/8
1/2
5/8
Reference outer diameter of
copper pipe jointed (mm)
6.35
9.52
12.70
15.88
Minimum joint thickness
(mm)
0.50
0.60
0.70
0.80
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 than lubricating oils used in the installed air-water heat pump 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
Page 12
d) Flare Processing
FILE NO. SVM-19040
- 12 -
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 R32 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.
Table 3-2-3 Dimensions related to flare processing for R32(R410A)
Nominal
diameter
Outer
diameter
(mm)
Thickness
(mm)
Fig. 3-2-1 Flare processing dimensions
Flare tool for R32
clutch type
ØD
A
A (mm)
Conventional flare tool
Clutch type Wing nut type
1/4
3/8
1/2
5/8
Nominal
diameter
1/4
3/8
1/2
5/8
6.35
9.52
12.70
15.88
Table 3-2-4 Dimensions related to flare processing for R22
Outer
diameter
(mm)
6.35
9.52
12.70
15.88
0.8
0.8
0.8
1.0
Thickness
(mm)
0.8
0.8
0.8
1.0
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
Flare tool for R22
clutch type
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
1.0 to 1.5 1.5 to 2.0
1.0 to 1.5 1.5 to 2.0
1.0 to 1.5 2.0 to 2.5
1.0 to 1.5 2.0 to 2.5
A (mm)
Conventional flare tool
Clutch type Wing nut type
0.5 to 1.0 1.0 to 1.5
0.5 to 1.0 1.0 to 1.5
0.5 to 1.0 1.5 to 2.0
0.5 to 1.0 1.5 to 2.0
Nominal diameter
1/4
3/8
1/2
5/8
Table 3-2-5 Flare and flare nut dimensions for R32(R410A)
Outer diameter
(mm)
6.35
9.52
12.70
15.88
Thickness
(mm)
0.8
0.8
0.8
1.0
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
Flare nut width
(mm)
17
22
26
29
Page 13
Table 3-2-6 Flare and flare nut dimensions for R22
FILE NO. SVM-19040
- 13 -
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
45° to 46°
Thickness
(mm)
0.8
0.8
0.8
1.0
1.0
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
43° to 45°
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 R32 is
the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur. 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 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.
Table 3-2-7 Tightening torque of flare for R32(R410A) [Reference values]
Nominal diameter
Outer diameter
(mm)
Tightening torque
N•m (kgf•cm)
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)
16 (160), 18 (180)
42 (420)
55 (550)
65 (650)
Page 14
3-3. Tools
FILE NO. SVM-19040
- 14 -
3-3-1. Required Tools
The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R32 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 R32 (Those which cannot be used for conventional refrigerant (R22))
2. Tools exclusive for R32, but can be also used for conventional refrigerant (R22)
3. Tools commonly used for R32 and for conventional refrigerant (R22) The table below shows the tools exclusive for R32 and their interchangeability.
Tools exclusive for R32 (The following tools for R410A are required.)
Tools whose specifications are changed for R32 and their interchangeability
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
R32(R410A)
Whether conven­tional equipment can be used
*(Note 1)
*(Note 1)
×
× ×
× ×
air-water heat pump installation
No.
1
2
3
4
5
6
7
8
(Note 1) When flaring is carried out for R32(R410A) using the conventional flare tools, adjustment of projection
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
Leakage detector
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
Pipe flaring
Flaring by conventional flare tool
Connection of flare nut
Evacuating, refrigerant charge, run check, etc.
Vacuum evacuating
Refrigerant charge
Gas leakage check
Usage
Existence of new equipment for R32
Conventional air-water
heat pump installation
Whether new equipment can be used with conventional refrigerant
¡
*(Note 1)
×
×
¡
¡
¡
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
Also prepare the following equipments for other installation method and run check.
1. Clamp meter
2. Thermometer
General tools (Conventional tools can be used.)
4. Reamer
5. Pipe bender
10. Hexagon wrench
6. Level vial
7. Screwdriver (+, –)
8. Spanner or Monkey wrench
11. Tape measure
12. Metal saw
3. Insulation resistance tester
4. Electroscope
9. Hole core drill (Ø65)
(Opposite side 4mm)
Page 15
3-4. Recharging of Refrigerant
FILE NO. SVM-19040
- 15 -
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)
Opened
(Outdoor unit)
Refrigerant cylinder
(with siphon)
Check valve
Opened Open/close valve for charging
Electronic balance for refrigerant charging
Fig. 3-4-1 Configuration of refrigerant charging
Opened
Closed
Service port
Page 16
1. Be sure to make setting so that liquid can be charged.
FILE NO. SVM-19040
- 16 -
2. When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.
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
3-5. Brazing of Pipes
3-5-1. 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.
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.
3-5-2. Flux
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. 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.
Page 17
2. Characteristics required for flux
FILE NO. SVM-19040
- 17 -
• 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.
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.
Piping material
Copper - Copper
Copper - Iron
Iron - Iron
Used brazing filler
Phosphor copper
Silver
Silver
Used flux
Do not use
Paste flux
Vapor 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).
4. Remove the flux after brazing.
M
Flow meter
Stop valve
Nitrogen gas
cylinder
From Nitrogen cylinder
Pipe
Nitrogen gas
Rubber plug
Fig. 3-5-1 Prevention of oxidation during brazing
Page 18
4. CONSTRUCTION VIEWS
FILE NO. SVM-19040
- 18 -
4-1. Indoor Unit
Front Panel
Back Body
7 55
50
Knock Out System
Grille Inlet
798
Air Inlet
:\/
293
f
Hert Exchanger
50
114
" " " "
  '
Air Outlet
55 66.5
97 24
Installation plate hanger
131 131 140 131 120 24
Air Filter
\I
55 66.5
Knock Out System
50
Wireless remote controller
230
17.5
110
50
7 55
58
64.5
Drain hose (0.4m)
Installation plate hanger
Connecting pipe (0.35m) (Flare
9.52mm : for 05,07,10 and 13 series)
(Flare 12.70 mm : for 16,18 series)
144 144
298
65
40
Hanger Hanger
94 94 135 170 170 135
340
510
192 192
170 170
Hanger
Installation plate hanger
Connecting pipe (0.40m)
(Flare
6.35mm)
65
Outline of indoor unit
40
73.5
25
Remote controller holder
Center line
Installation plate outline
Page 19
4-2. Outdoor Unit (RAS-05,07,10,13TAVG-EE)
FILE NO. SVM-19040
- 19 -
(Unit : mm)
300
280
C
L
C
L
280
400
Page 20
4-3. Outdoor Unit (RAS-16,18TAVG-EE)
FILE NO. SVM-19040
- 20 -
(Unit : mm)
600
50
36
320
306
A detail Drawing (Back leg)
R5.5
R
Ø
15
6 hole
320
340
FAN-GUARD
550
28
86
Ø
25 Drain outlet
436
Ø
275
A
108 125
80
306
320
Ø
2
-
Ø
11 x 14
(For 8 -
Ø
Hole
10 anchor bolt)
Ø
6 hole
11x14 hole
Ø
B Detail Drawing (Front leg)
36 50
R
15
COVER-PV
Z
290
100 or more
320
Z View
600
Air intlel
9060090
69
600 or more
137
92
320 342
5
4
Liquid side
(Flare 6.35)
Gas side
(Flare ∅ 12.7)
Service port
Ø
100 or more
Air outlel
600 or more
Installation dimension
Page 21
RAS-05TKVG-EE / RAS-05TAVG-EE
FILE NO. SVM-19040
- 21 -
RAS-07TKVG-EE / RAS-07TAVG-EE RAS-10TKVG-EE / RAS-10TAVG-EE RAS-13TKVG-EE / RAS-13TAVG-EE
5. WIRING DI
AGRAM
Page 22
RAS-16TKVG-EE / RAS-16TAVG-EE
FILE NO. SVM-19040
- 22 -
Page 23
RAS-18TKVG-EE / RAS-18TAVG-EE
FILE NO. SVM-19040
- 23 -
Page 24
6-1. Indoor Unit
FILE NO. SVM-19040
- 24 -
6. SPECIFICATIONS OF ELECTRICAL PARTS
No. Typeype Specificat
1 Fan Motor (for indoor)
2 Room temp. sensor (TA-sensor) (-) 10kΩ at 25°C
3 Heat exchanger temp. sensor (TC-sensor) (-) 10kΩ at 25°C
4 Heat exchanger temp. sensor (TCJ-sensor)
Louver motor
5
Parts name
RAS-05,07,10,13
RAS-16
RAS-18
SJM-240-25 AC 220~240V, 25W
SJM-240-35 AC 220~240V, 35W
ICF-340-30-6 DC 340V, 42W
(-)
24BYJ48-ST
10kΩ at 25°C
Output (Rated) 4 phase, DC12V
6-2. Outdoor Unit
No. Type name Specifications
1 Compressor
2 Fan Motor WDF-340-A43-1 DC 140-340V ; 43W
Parts name
RAS-05,07,10
RAS-13 KSK89D53UEZ
RAS-16,18
KSK75D43UEZA 3-Phases (6-Poles) ; 550W
KSN108D22UFZ 3-Phases (6-Poles) ; 750W
3-Phases (6-Poles) ; 620W
3 Pulse Modulating Valve (PMV) coil PQ-M10012-000313 DC 12V
4 4-Way valve coil DXQ-939 AC 220-240V
5 Reactor
6 Suction temp. sensor (TS sensor) (Inverter attached)
7 Discharge temp. sensor (TD sensor) (Inverter attached)
8 Outside air temp. sensor (TO sensor) (Inverter attached)
9 Heat Exchanger temp. sensor (TE sensor) (Inverter attached)
10 Terminal block (5 poles) JXO-5B
RAS-16,18
CH-69-Z-T L = 19mH, 10A
10kΩ at 25°C
62kΩ at 20°C
10kΩ at 25°C
10kΩ at 25°C
AC 250V, 20A
Page 25
7. REFRIGERANT CYCLE DIAGRAM
FILE NO. SVM-19040
- 25 -
7-1. Refrigerant Cycle Diagram
RAS-05TKVG-EE / RAS-05TAVG-EE RAS-07TKVG-EE / RAS-07TAVG-EE RAS-10TKVG-EE / RAS-10TAVG-EE
INDOOR UNIT
Indoor heat
exchanger
T1
Temp. measurement
TC
P
Pressure measurement Gauge attaching port
Vacuum pump connecting port
Deoxidized copper pipe Outer dia. : 9.52mm Thickness : 0.8mm
4-way valve
TS
Muffler
Muffler
Compressor
KSK75D43UEZA
Outdoor heat
exchanger
Cross flow fan
Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm
Sectional shape of heat insulator
TD
TO
Split capillary
TA
Allowable height
difference : 12m
Strainer
Pulse Modulating valve at liquid side
Strainer
Max. : 15m Min. : 2m
Chargeless : 15m
Allowable pipe length
Temp. measurement
NOTE :
• The maximum pipe length of this air conditioner is 20 m. When the pipe length exceeds 15m, the additional
charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)
T2
Propeller fan
OUTDOOR UNIT
TE
05k and 07k Refrigerant amount : 0.40kg
10k Refrigerant amount : 0.43kg
NOTE :
Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating)
Page 26
RAS-13TKVG-EE / RAS-13TAVG-EE
FILE NO. SVM-19040
- 26 -
INDOOR UNIT
Indoor heat
exchanger
T1
Temp. measurement
TC
P
Pressure measurement Gauge attaching port
Vacuum pump connecting port
Deoxidized copper pipe
Outer dia. : 9.52mm
Thickness : 0.8mm
4-way valve
TS
Muffler
Muffler
Cross flow fan
Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm
Sectional shape of heat insulator
TD
Compressor
KSK89D53UEZ
TA
Allowable height
difference : 12m
Strainer
Pulse Modulating valve at liquid side
Strainer
Max. : 15m
Min. : 2m Chargeless : 15m
Allowable pipe length
Outdoor heat
exchanger
TO
Temp. measurement
T2
Propeller fan
OUTDOOR UNIT
TE
NOTE :
Refrigerant amount : 0.46kg
Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating)
NOTE :
• The maximum pipe length of this air conditioner is 20 m. When the pipe length exceeds 15m, the additional
charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)
Page 27
RAS-16TKVG-EE / RAS-16TAVG-EE
FILE NO. SVM-19040
- 27 -
INDOOR UNIT
Indoor heat
exchanger
T1
Temp. measurement
TC
P
Pressure measurement
Gauge attaching port Vacuum pump connecting port
Deoxidized copper pipe
Outer dia. : 12.7mm
Thickness : 0.8mm
4-way valve
TS
Muffler
Muffler
Cross flow fan
Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm
Sectional shape of heat insulator
TD
Compressor
KSN108D22UFZ
TA
Allowable height
difference : 12m
Strainer
Pulse Modulating valve at liquid side
Strainer
Max. : 20m Min. : 2m Chargeless : 15m
Allowable pipe length
Outdoor heat
exchanger
TO
Temp. measurement
T2
Propeller fan
OUTDOOR UNIT
TE
NOTE :
Refrigerant amount : 0.62kg
Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating)
NOTE :
• The maximum pipe length of this air conditioner is 20 m. When the pipe length exceeds 15m, the additional
charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)
Page 28
RAS-18TKVG-EE / RAS-18TAVG-EE
FILE NO. SVM-19040
- 28 -
INDOOR UNIT
Indoor heat
exchanger
T1
Temp. measurement
TC
P
Pressure measurement
Gauge attaching port Vacuum pump connecting port
Deoxidized copper pipe
Outer dia. : 1
Thickness : 0.8mm
2.7mm
4-way valve
TS
Muffler
Cross flow fan
Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm
Sectional shape of heat insulator
Muffler
TD
Compressor
K
SN108D22UFZ
TA
Allowable height
difference : 12m
Strainer
Pulse Modulating valve at liquid side
Strainer
Max. : 20 Min.
: 2m
Chargeless : 15
Allowable pipe length
m
m
Temp. measurement
NOTE :
• The maximum pipe length of this air conditioner is 20 m. When the pipe length exceeds 15m, the additional
charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)
T2
Outdoor heat
exchanger
Propeller fan
OUTDOOR UNIT
TE
TO
NOTE :
Refrigerant amount : 0.88kg
Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating)
Page 29
7-2. Operation Data
FILE NO. SVM-19040
- 29 -
<Cooling>
Tempeature Heat exchanger
condition(°C)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C) (rps)
27/19 35/-
Model name Standard Indoor Outdoor Compressor RAS- pressure fan mode fan mode revolution
05TKVG-EE 07TKVG-EE
10TKVG-EE
13TKVG-EE 16TKVG-EE 18TKVG-EE
1.2 to 1.3
1.2 to 1.3
1.1 to 1.2 12 to 13 48 to 49
1.0 to 1.1 9 to 11 48 to 49
1.0 to 1.1 9 to 11 50 to 51
0.8 to 1.0 8 to 9 46 to 47
pipe temp.
14 to 16
13 to 14
43 to 44 46 to 47
High
High High High High High High High High High High
High
31
42 61 75 75
86
<Heating>
Tempeature Heat exchanger
condition(°C)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C) (rps)
20/- 7/6
Model name Standard Indoor Outdoor Compressor RAS- pressure fan mode fan mode revolution
05TKVG-EE
07TKVG-EE
10TKVG-EE 13TKVG-EE 16TKVG-EE 18TKVG-EE
2.2 to 2.3 36 to 37
2.3 to 2.4 39 to 40
2.3 to 2.4 38 to 40
2.4 to 2.5 40 to 42 1 to 2
2.7 to 2.8 44 to 45 0 to 1
2.9 to 3.0 45 to 48 2 to 3
pipe temp.
1 to 2
0 to 1 High High 0 to 1 High High
High High
High High High High
High
High
46 59 78
68
81
89
Connecting
piping
(m)
5.0
7.5
Connecting
piping
(m)
5.0
7.5
NOTES :
1. Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent. (Thermistor thermometer)
Page 30
8-1. Indoor Unit
FILE NO. SVM-19040
- 30 -
Heat Exchanger Sensor
8. CONTROL BLOCK DIAGRAM
Indoor Unit Control Panel
M.C.U
Functions
Louver Control
Operation
Display
Temperature Sensor
Infrared Rays Signal Receiver
Initiallizing Circuit
Infrared
Rays
36.7KHz
Clock Frequency
Oscillator Circuit
Power Supply
Remote
Control
Noise Filter
Power Supply
(From Outdoor Unit)
Circuit
3-minute Delay at Restart for Compressor
Motor Revolution Control
Processing (Temperature Processing)
Timer
LED brightness dim
Serial Signal Communication
Louver ON/OFF Signal
Louver Driver
Serial Signal Transmitter/Receiver
Serial Signal Communication
Timer
Display
Hi-Power
Display
Wi-Fi
Display
ECO
Display
Indoor
Fan Motor
Louver Motor
REMOTE CONTROL
Infrared Rays
Remote Control
Operation ( )
Operation Mode Selection
AUTO, COOL, DRY, HEAT, FAN ONLY
Temperature Setting
Fan Speed Selection
OFF TIMER Setting
Louver Auto Swing
Louver Direction Setting
ECO
Hi-POWER
SILENT operation
Page 31
8-2. Outdoor Unit (Inverter Assembly)
FILE NO. SVM-19040
- 31 -
RAS-05TKVG-EE / RAS-05TAVG-EE RAS-07TKVG-EE / RAS-07TAVG-EE RAS-10TKVG-EE / RAS-10TAVG-EE RAS-13TKVG-EE / RAS-13TAVG-EE
OUTDOOR UNIT
detect
Current
detect
Current
Outdoor
Fan motor
Inverter
(DC AC)
Compressor
P.M.V. : Pulse Motor Valve
M.C.U. : Micro Control Unit
MICRO-COMPUTER BLOCK DIAGRAM
WP-032 (P.C.B)
M.C.U
IPM over-current detect control
• PWM synthesis function
• Input current release control
circuit
Indoor unit
send/receive
Clock
• Outdoor fan control
• High power factor correction control
• Inverter output frequency control
• A/D converter function
• P.M.V. control
• Discharge temp. control
• 4-way valve control
• Signal communication to indoor unit
High Power
10MHz
circuit
Converter
(AC DC)
Detector
High current
Filter
Noise
frequency
factor Correction
Inverter
(DC AC)
Drrive
circuit
of P.M.V.
Driver circuit
valve
4-way
P.M.V.
220–240V ~50Hz
For INDOOR UNIT
230V ~60Hz
220
Discharge
temp. sensor
Outdoor air
temp. sensor
Suction temp.
sensor
temp.sensor
Heat exchanger
Page 32
RAS-16TKVG-EE / RAS-16TAVG-EE
FILE NO. SVM-19040
- 32 -
RAS-18TKVG-EE / RAS-18TAVG-EE
OUTDOOR UNIT
detect
Current
detect
Current
Outdoor
Fan motor
Inverter
(DC AC)
Compressor
P.M.V. : Pulse Motor Valve
M.C.U. : Micro Control Unit
MICRO-COMPUTER BLOCK DIAGRAM
WP-030 (P.C.B)
M.C.U
IPM over-current detect control
• PWM synthesis function
• Input current release control
circuit
Indoor unit
send/receive
Clock
• Outdoor fan control
• High power factor correction control
• Inverter output frequency control
• A/D converter function
• P.M.V. control
• Discharge temp. control
• 4-way valve control
• Signal communication to indoor unit
High Power
10MHz
circuit
Converter
(AC DC)
Detector
High current
Filter
Noise
frequency
factor Correction
Inverter
(DC AC)
Drrive
circuit
of P.M.V.
Driver circuit
valve
4-way
P.M.V.
220–240V ~50Hz
For INDOOR UNIT
230V ~60Hz
220
Discharge
temp. sensor
Outdoor air
temp. sensor
Suction temp.
sensor
temp.sensor
Heat exchanger
Page 33
9. OPERATION DESCRIPTION
FILE NO. SVM-19040
- 33 -
9-1. Outline of Air Conditioner Control
This air conditioner is a capacity-variable type air conditioner. Its system can control the speed of compressor motor according to load. The drive circuit for the indoor motor is mounted in the indoor unit. The drive circuits for outdoor motor and compressor are mounted in the outdoor unit.
The entire air conditioner is mainly controlled by the indoor unit controller. The indoor unit controller
drives the indoor fan motor based upon command sent from the remote controller. Moreover, it also
determines required speed of compressor motor and then transfers the operation command to the outdoor unit controller.
The outdoor unit controller erceives operation command from the indoor unit and controls revolution speed of the compressor motor. The outdoor unit controller controls speed of compressor motor be controlling output voltage of the inverter and switching timing of supply power (current transfer timing), so that compressor motor operates according to the operation command. And then, the outdoor unit controller transfers the operating status back to the indoor unit controller.
As the compressor adopts four-pole brushless DC motor, the frequency of the supply power from inverter to compressor is two-times cycles of the actual number of revolution.
1. Role of indoor unit controller
The indoor unit controller judges the operation commands from the remote controller and assumes the following functions.
• Judgment of suction air temperature of the indoor heat exchanger by using the indoor temp. sensor. (TA sensor)
• Judgment of the indoor heat exchanger tempera­ture by using heat exchanger sensor (TC sensor) (Prevent-freezing control, etc.)
• Louver motor control
• Indoor fan motor operation control
• LED (Light Emitting Diode) display control
• Transferring of operation command signal (Serial signal) to the outdoor unit
• Reception of information of operation status (Serial signal including outside temp. data) from the outdoor unit and judgment/display of error
2. Role of outdoor unit controller
Receiving the operation command signal (Serial signal) from the indoor unit controller, the outdoor unit performs compressor operation control as followed to judgment of serial signal from indoor side.
• Detection of inverter input current and current release operation
• Over-current detection and prevention operation to IGBT module (Compressor stop function)
• Compressor and outdoor fan stop function when serial signal is off (when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system)
• Transferring of operation information (Serial signal) from outdoor unit controller to indoor unit controller
• Detection of outdoor temperature and operation revolution control
Defrost control in heating operation (Temp.
measurement by outdoor heat exchanger and control for 4-way valve and outdoor fan)
3. Contents of operation command signal (Serial signal) from indoor unit controller to outdoor unit controller
The following three types of signals are sent from the indoor unit controller.
• Operation mode set on the remote controller
• Compressor revolution command signal defined
by indoor temperature and set temperature (Correction along with variation of room tempera­ture and correction of indoor heat exchanger temperature are added.)
• Temperature of indoor heat exchanger
• For these signals ([Operation mode] and [Com-
pressor revolution] indoor heat exchanger tem­perature), the outdoor unit controller monitors the input current to the inverter, and performs the followed operation within the range that current does not exceed the allowable value.
4. Contents of operation command signal (Serial signal) from outdoor unit controller to indoor unit controller
The following signals are sent from the outdoor unit controller.
• The current operation mode
• The current compressor revolution
• Outdoor temperature
• Existence of protective circuit operation
For transferring of these signals, the indoor unit controller monitors the contents of signals, and judges existence of trouble occurrence. Contents of judgment are described below.
• Whether distinction of the current operation status meets to the operation command signal
• Whether protective circuit operates When no signal is received from the outdoor unit controller, it is assumed as a trouble.
Page 34
9-2. Operation Description
FILE NO. SVM-19040
- 34 -
1.
Basic operation ........................................................................................................... 35
1.
Operation control ................................................................................................... 35
2.
Cooling/Heating operation ..................................................................................... 36
3.
AUTO operation .....................................................................................................
4.
DRY operation ........................................................................................................ 36
2.
Indoor fan motor control ............................................................................................. 37
3.
Outdoor fan motor control........................................................................................... 40
4.
Capacity control .......................................................................................................... 41
5.
Current release control ............................................................................................... 41
6.
Release protective control by temperature of indoor heat exchanger........................ 42
7.
Defrost control (Only in heating operation) ................................................................ 43
8.
Louver control ............................................................................................................. 44
1)
Louver position ....................................................................................................... 44
2)
Air direction adjustment ......................................................................................... 44
3)
Swing ..................................................................................................................... 44
9.
ECO operation ............................................................................................................ 45
10.
Temporary operation................................................................................................... 46
11.
Discharge temperature control ................................................................................... 46
12.
High pressure control ................................................................................................. 46
36
13.
Pulse Modulating valve (P.M.V.) control ..................................................................... 47
14.
Self-Cleaning function ................................................................................................ 48
15.
Remote-A or B selection ............................................................................................ 50
16.
Hi-POWER Mode ...................................................................................................... 50
17.
Display lamp brightness adjustment ......................................................................... 51
18.
Oper
ation mode select table ..................................................................................... 51
19.
QUIET mode ............................................................................................................... 52
20.
Silent Operation .......................................................................................................... 52
9-3. Auto Restart Function ..
9-
3-1. How to Set the A uto Restart Function ....................................................................... 53
9-
3-2. How to Cancel the Au to Restar t Function ................................................................. 54
9-
3-3. Power Failure During Timer Operation .................................................................... 54
9-4. Remote Controller and Its Fuctions
9-
4-1. Parts Name of Remote Contr oller .............................................................................. 55
9-
4-2. Operation of remote control ...................................................................................... 55
9-
4-3. Name and Functions of Indications on Remote Contr oller ........................................ 57
Page 35
Item
FILE NO. SVM-19040
- 35 -
Operation flow and applicable data, etc.
Description
1. Basic operation
1. Operation control
Receiving the user’s operation condition setup, the operation statuses of indoor/outdoor units are controlled.
1) The operation conditions are selected by the remote controller as shown in the below.
2) A signal is sent by ON button of the remote controller.
3) The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below.
4) The indoor controller controls the indoor fan motor and louver motor.
5) The indoor controller sends the operation command to the outdoor controller, and sends/receives the control status with a serial signal.
6) The outdoor controller controls the operation as shown in the left, and also controls the compres­sor, outdoor fan motor, 4-way valve and pulse Modulating valve.
Selection of
operation conditions
ON/OFF
Remote controller
Control contents of remote controller
• ON/OFF
• Operation select (AUTO/COOL/DRY/HEAT/FAN ONLY)
• Temperature setup
• Air direction
• Swing
• Air volume select (AUTO/LOW/LOW+/MED/MED+/HIGH)
• ECO
SILENT
• OFF timer setup
• Hi-POWER
Signal receiving
Indoor unit control
Operation command
Serial signal send/receive
Serial signal send/receive
Outdoor unit control
Indoor unit
Indoor unit control
• Command signal generating function of indoor unit operation
Calculation function (temper
• Activation compensation function of indoor fan
• Cold draft preventive function
• Timer function
• Indoor heat exchanger release control
ature calculation)
Outdoor unit
Outdoor unit control
• Frequency control of inverter output Waveform composite function
• Calculation function (Temperature calculation)
• AD conversion function
k heating function
Quic
• Delay function of compressor reactivation
• Current release function
• GTr over-current preventive function Defrost operation function
Inverter
• Indoor fan motor
• Louver motor
~
Compressor
• Outdoor fan motor
• 4-way valve Pulse Modulating valve
• (P.M.V.)
Page 36
Item
FILE NO. SVM-19040
- 36 -
Operation flow and applicable data, etc.
Description
1. Basic operation
2. Cooling/Heating operation
The operations are performed in the following parts by controls according to cooling/heating conditions.
1) Receiving the operation ON signal of the remote controller, the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit.
2) At the indoor unit side, the indoor fan is operated according to the contents of “2. Indoor fan motor control” and the louver according to the contents of “9. Louver control”, respectively.
3) The outdoor unit controls the outdoor fan motor, compressor, pulse Modulating valve and 4-way valve according to the operation signal sent from the indoor unit.
Operation ON
Indoor unit control
Sending of operation command signal
Outdoor unit control
3. AUTO operation
Selection of operation mode As shown in the following figure, the operation starts by selecting automatically the status of room temperature (Ta) when starting AUTO operation.
*1. When reselecting the operation mode, the fan
speed is controlled by the previous operation mode.
Ta
Cooling operation
Ts + 1
Monitoring (Fan)
Ts – 1
Heating operation
Setup of remote controller
Indoor fan motor control / Louver control / Operation Hz Control (Requierment)
Compressor revolution control / Outdoor fan motor control / Operation Hz control (Include limit control) 4-way valve control In cooling operation:
In heating operation: Pulse Modulating valve control
[ ]
1) Detects the room temperature (Ta) when the operation started.
2) Selects an operation mode from Ta in the left figure.
3) Fan operation continues until an operation mode is selected.
4) When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20°C or more, the fan operation is performed with ”Super Ultra LOW” mode for 3 minutes. Then, select an operation mode.
5) If the status of compressor-OFF continues for 15 minutes the room temperature after selecting an operation mode (COOL/HEAT), reselect an operation mode.
OFF
ON
4. DRY operation
DRY operation is performed according to the difference between room temperature and the setup temperature as shown below.
In DRY operation, fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons.
[°C]
+ +
Ta
1.0
0.5
L– (W5)
(W5+W3) / 2
SUL (W3)
Tsc
Fan speed
1) Detects the room temperature (Ta) when the DRY operation started.
2) Starts operation under conditions in the left figure according to the temperature difference between the room tempera­ture and the setup temperature (Tsc). Setup temperature (Tsc) = Set temperature on remote controller
(Ts) + (0.0 to 1.0)
3) When the room temperature is lower 1°C or less than the setup temperature, turn off the compressor.
Page 37
Item
FILE NO. SVM-19040
- 37 -
Operation flow and applicable data, etc.
Description
2. Indoor fan motor control
COOL ON
Fan speed setup
AUTO
Ta
[°C]
+2.5
a
+2.0
b
+1.5
c
+1.0
<In cooling operation>
(This operation controls the fan speed at indoor unit side.) The indoor fan (cross flow fan) is operated by the phase-
control induction motor. The fan rotates in 5 stages in MANUAL mode, and in 5 stages in AUTO mode, respec­tively. (Table 1)
MANUAL
(Fig. 1)
Indication
L L+ M M+ H
Fan speed
W7
(L + M) / 2
WA
(M + H) / 2
WD
(Fig. 2)
Air volume AUTO
M+(WC)
*3
*4
*5
*3 : Fan speed = (M + –L) x 3/4 + L
*4 : Fan speed = (M + –L) x 2/4 + L
*5 : Fan speed = (M + –L) x 1/4 + L
* Symbols
UH : Ultra High H : High M+ : Medium+ M : Medium L+ : Low+ L: Low L- : Low– UL : Ultra Low SUL : Super Ultra Low
* The fan speed broadly varies due
to position of the louver, etc. The described value indicates one under condition of inclining downward blowing.
1) When setting the fan speed to L, L+, M, M+ or H on the remote controller, the operation is performed with the constant speed shown in Fig. 1.
2) When setting the fan speed to AUTO on the remote controller, revolution of the fan motor is controlled to the fan speed level shown in Fig. 2 and Table 1 according to the setup tempera­ture, room temperature, and heat exchanger temperature.
d
+0.5
Tsc
L(W7)
e
(Linear approximation from M+ and L)
(Table 1) Indoor fan air flow rate
Fan speed level
WF UH 1050 484 1050 618 1080 504 1080 640 WE UH H 1050 484 1050 618 1080 504 1080 640 WD H M+ UH 1020 465 1000 581 1050 484 1030 603 WC M+ H 970 432 910 514 1000 452 940 536 WB WA M W9 L+ 810 327 720 373 820 334 730 380 W8 L+ L L+ 700 255 620 298 710 262 620 298 W7 L L- 600 190 580 268 600 190 580 268 W6 L- L 570 170 580 268 570 170 580 268 W5 UL UL L- 550 157 550 246 550 157 550 246 W4 UL 550 157 550 246 550 157 550 246 W3 SUL SUL 540 151 520 224 540 151 520 224 W2 SUL 520 138 520 224 520 138 520 224 W1 500 125 500 209 500 125 500 209
Mode
Cool Heat Dry Fan speed Air flow rate Fan speed Air flow rate
M
M+ 890 380 830 454 910 393 850 469
M
(rpm)
810 327 830 454 820 334 850 469
RAS-05TKVG-EE
Cooling Heating Cooling Heating
m3/hr
Fan speed Air flow rate
(rpm) m3/hr
Fan speed Air flow rate
(rpm) m3/hr
RAS-07TKVG-EE
(rpm)
m3/hr
Page 38
Item Operation flow and applicable data, etc.
FILE NO. SVM-19040
- 38 -
2. Indoor fan motor control
Description
Fan speed level
WF UH 1110 524 1110 663 1200 582 1200 730 WE UH H 1110 524 1110 663 1200 582 1200 730 WD H M+ UH 1060 491 1060 626 1170 563 1080 640 WC M+ H 960 425 960 551 1120 530 1020 596 WB WA M
W9 L+ 750 288 750 395 900 386 840 462
W8 L+ L L+ 640 216 640 313 770 301 720 373
W7 L L- 600 190 600 283 640 216 660 328
W6 L- L 600 190 600 283 620 203 660 328
W5 UL UL L- 570 170 570 261 600 190 600 283
W4 UL 570 170 570 261 600 190 600 283
W3 SUL SUL 520 138 520 224 540 151 520 224
W2 SUL 520 138 520 224 520 138 520 224
W1 500 125 500 209 500 125 500 209
Fan speed level
WF UH 1170 563 1170 707 WE UH H 1170 563 1170 707 WD H M+ UH 1110 524 1120 670 WC M+ H 1060 491 1000 581 WB WA M
W9 L+ 850 353 750 395 W8 L+ L L+ 720 268 620 298 W7 L L- 600 190 610 291 W6 L- L 590 183 610 291 W5 UL UL L- 580 177 600 283 W4 UL 580 177 600 283 W3 SUL SUL 540 151 520 224 W2 SUL 520 138 520 224 W1 500 125 500 209
Mode
Cool Heat Dry Fan speed Air flow rate Fan speed Air flow rate
M
M+ 870 367 870 484 1010 458 960 551
M
Mode
Cool Heat Dry Fan speed Air flow rate
M+ 950 419 880 492
M
M
(rpm)
870 367 870 484 900 386 960 551
(rpm)
850 353 880 492
RAS-10TKVG-EE RAS-13TKVG-EE
Cooling Heating Cooling Heating
m3/hr
RAS-16TKVG-EE
Cooling Heating
m3/hr
Fan speed Air flow rate
(rpm) m3/hr
Fan speed Air flow rate
(rpm) m3/hr
Fan speed Air flow rate
(rpm) m3/hr
RAS-18TKVG-EE
Cooling Heating
Fan speed Air flow rate
(rpm)
1250 636 1250 746 1250 636 1250 746 1200 585 1150 692 1150 553 1110 663 1100 530 1030 603 1000 452 930 528
950 419 850 469 850 353 820 447 800 650 182 700 357
580 177 580 177 600 283 540 151 520 224 520 138 520 224 500 125 500 209
m3/hr
190
(rpm)
Fan speed Air flow rate
(rpm) m3/hr
750 395
650 320
m3/hr
Page 39
Item
d
O
ol
y.
c
e
C
[C]
b
5
c
5.5
)
)
U
.
)
c
U
g
y
g
ON
l
52
51
(
8
t
FILE NO. SVM-19040
- 39 -
Operation flow and applicable data, etc.
Description
2. Indoor fan motor control
HEAT
Fan speed setup
AUTO
TC 42°C
NO
<In heating operation>
MANUAL
Indication Fan speed
L L+ M M+ H
YES
Tc
(Fig. 3)
(L + M) / 2
(M + H) / 2
Min air flow rate contro
Limited to Min WD tap
W8
WA
WE
1) When setting the fan speed to L, L+, M, M+ or H on the remote controller, the operation is per­formed with the constant speed shown in Fig. 3 and Table 1.
2) When setting the fan speed to AUTO on the remote controller, revolution of the fan motor is controlled to the fan speed level shown in Fig. 5 according to the set temperature and room temperature.
3) Min air flow rate is controlled by temperature of the indoor heat exchanger (Tc) as shown in Fig. 4.
4) Cold draft prevention, the fan speed is controlled by temperature of the indoor heat exchanger (Tc) as shown in Fig. 6.
5) In order to prevent Cold draft when compressor step during heating
operation. Then louver will move to upper position and fan speed will
reduce or off.
*Fan speed=
TC
Fan spee
AUT
L+ (W9)
*1
*2
*3
M+ (WD)
H (WE
Basic fan contr
A
TS
–0.
d
–1.0
e
–1.5
–2.0
–2.5
–5.0
f
g
(Fig. 4)
*1: Fan speed = (M + -L+) x 1 4 + L+ *2: Fan speed = (M + -L+) x 2 4 + L+ *3: Fan speed = (M + -L+) x 3 4 + L+ (Calculated with linear approximation from M+ and L+)
(Fig. 5)
No limi
W8) + W
Cold draft preventive control
T 46 46 45 45 33
33 33 21 32 32 20
*A+4 *A+4 *A+4
*A-4 *A-4 *A-4
* No limitation while fan speed MANUAL mode is in stabilit * A: When Tsc 24, A is 24, and when Tsc < 24, A is Ts
Tsc: Set valu
34
Fan speed MAN Fan speed AUTO in stabilit Fan speed AUTO in startin
H (WE
Line-approximate H and S
SUL (W2
AL in startin
L with Tc
Stop
(Fig. 6)
[In starting and in stability]
FAN AUTO
FAN Manual
In starting
• Until 12 minutes passed after operation start
• When 12 to 25 minutes passed after operation start and room temp. is 3°C or lower than set temp.
• Room temp. < Set temp. –4°C
In stability
• When 12 to 25 minutes passed after operation start and room temp. is higher than (set temp. –3°C)
• When 25 minutes or more passed after operation start
• Room temp. Set temp. –3.5°C
Page 40
Item
FILE NO. SVM-19040
- 40 -
Operation flow and applicable data, etc.
Description
3. Outdoor fan motor control
1) Outdoor unit
when the motor stopped.
The blowing air volume at the outdoor unit side is controlled. Receiving the operation command from the controller of
indoor unit, the controller of outdoor unit controls fan speed. * For the fan motor, a DC motor with non-stage variable
speed system is used. However, it is limited to 8 stages for reasons of controlling.
Air conditioner ON
(Remote controller)
Indoor unit controller
operation
command
(Outdoor fan control)
2) Fan speed 400
YES
OFF status of
fan motor continues.
NO
Fan motor ON
1) The operation command sent from the remote controller is processed by the indoor unit controller and transferred to the controller of the outdoor unit.
2) When strong wind blows at outdoor side, the operation of air conditioner continues with the fan motor stopped.
3) Whether the fan is locked or not is detected, and the operation of air conditioner stops and an alarm is displayed if the fan is locked.
4) According to each operation mode, by the conditions of outdoor temperature (To) and compressor revolution, the speed of the outdoor fan shown in the table is selected.
3) Fan lock
YES
Air conditioner
OFF
Alarm
display
NO
4)
Motor operates as shown in the table below.
~ 31.7
RAS-05TAVG-EE RAS-05TAVG-EE RAS-07TAVG-EE RAS-07TAVG-EE
Compressor speed Compressor speed
Fan speed range
To
When To is abnormal
RAS-10TAVG-EE RAS-10TAVG-EE RAS-13TAVG-EE RAS-13TAVG-EE RAS-16TAVG-EE RAS-16TAVG-EE RAS-18TAVG-EE RAS-18TAVG-EE
In cooling operation In heating operation
Hz < 20.4
Hz < 13.8
To ≥ 38°C f6 fB f8 fE fA fE To ≥ 10°C f7 f8 f9 To ≥ 28°C f5 fA f7 fE f9 fE To ≥ 5°C f9 fB fE To ≥ 15°C f3 f7 f5 f9 f7 fB To ≥ -3°C fE fE fE To ≥ 5.5°C f2 f5 f4 f7 f6 f9 To ≥ -10°C fE fE fE
To ≥ 0°C f1 f3 f3 f5 f4 f7 To ≥ 0°C f1 f2 f2 f4 f3 f5 fE fE fE
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
OFF fB OFF fE f1 fE
20.4 ≤ Hz < 32.4 20.4 ≤ Hz < 46.2
20.4 ≤ Hz < 42.0
20.4 ≤ Hz < 60.6
20.4 ≤ Hz < 75.0
13.8 ≤ Hz < 30.6
32.4 Hz
42.0 Hz
60.6 Hz
75.0 Hz
30.6 Hz
Fan speed range
To
When To is abnormal
To < - 10°C
20.4 ≤ Hz < 59.4
Hz < 20.4
Hz < 16.8
20.4 ≤ Hz < 78.0
20.4 ≤ Hz < 67.8
20.4 ≤ Hz < 75.0
16.8 ≤ Hz < 48.6 48.6 Hz
fE fE fE
46.2 Hz
59.4 Hz
78.0 ≤ Hz
67.8 Hz
75.0 Hz
Outdoor fan speed (rpm)
Model name
RAS-05TAVG-EE 0 300 RAS-07TAVG-EE 0 300 RAS-10TAVG-EE 0 300 RAS-13TAVG-EE 0 300 370 390 460 500 520 620 720 750 780 780 880 880 950 950 RAS-16TAVG-EE 0 200 300 300 360 440 500 550 600 650 700 700 800 950 950 950 RAS-18TAVG-EE 0 300 300 300 360 450 500 550 600 650 700 700 800 850 950 950
f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fA fB fC fD fE fF
390 460 500 520 620 720 750 780 780 900 900 900 900
370
390 460 500 520 620 720 750 780 780 900 900 900 900
370
390 460 500 520 620 720 750 780 780 900 900 900 900
370
Fan speed range
Page 41
Item
FILE NO. SVM-19040
- 41 -
Operation flow and applicable data, etc.
Description
4. Capacity control
Remote controller Indoor unit
The cooling or heating capacity depending on the load is adjusted.
According to difference between the setup value of tempera­ture and the room temperature, the capacity is adjusted by the compressor revolution.
Set temp. (Ts)
Ts –Ta
Correction of Hz signal
Detection of electromotive force
of compressor motor winding
Detection of motor speed and rotor position
Correction value of Hz signal Operating Hz
verter output change
In
Commutation timing change
Room temp. (Ta)
1) The difference between set temperature on remote controller (Ts) and room temperature (Ta) is calculated.
2) According to the temperature difference, the correction value of Hz signal which determines the compressor speed is set up.
3) The rotating position and speed of the motor are detected by the electromotive force occurred on the motor winding with operation of the compressor.
4) According to the difference resulted from comparison of the correction value of Hz signal with the present operation Hz, the inverter output and the commuta­tion timing are varied.
5) Change the compressor motor speed by outputting power to the compressor.
* The contents of control
operation are same in cooling operation and heating operation
5. Current release control
Outdoor unit inverter main
circuit control current
Operating current
Setup value
Low
Capacity control continues.
Mode
Outdoor temperature: To (°C)
To 45
Cooling
Heating
45 > To 40
To < 40 To 16
16 > To 11
To < 11
Change of compressor speed
This function prevents troubles on the electronic parts of the compressor driving inverter.
This function also controls drive circuit of the compressor speed so that electric power of the compressor drive circuit does not exceed the specified value.
Outdoor temp. To
Setup of current release point
High
Reduce compressor speed
Current decrease
Current Release Value (A)
RAS-05TAVG-EE RAS-07TAVG-EE RAS-10TAVG-EE RAS-13TAVG-EE RAS-16TAVG-EE RAS-18TAVG-EE
5.8 5.8 5.8 5.8 7.2 8.8
6.2 6.2 6.2 6.6 7.7 8.8
3.6 4.8 5.6 6.8 8.5 8.5
7.2 7.2 7.2 6.7 10.0 9.5
5.8 6.2 6.7 6.7 9.0 8.9
4.3 5.1 6.2 6.6 8.0 8.2
1) The input current of the outdoor unit is detected in the inverter section of the outdoor unit.
2) According to the detected outdoor temperature, the specified value of the current is selected.
3) Whether the current value exceeds the specified value or not is judged.
4) If the current value exceeds the specified value, this function reduces the compressor speed and controls speed up to the closest one commanded from the indoor unit within the range which does not exceed the specified value.
Page 42
Item
FILE NO. SVM-19040
- 42 -
Operation flow and applicable data, etc.
Description
6. Release protective control by tempera­ture of indoor heat exchanger
7°C
6°C
5°C
Indoor heat exchanger temperature
<In cooling/dry operation>
(Prevent-freezing control for indoor heat exchanger) In cooling/dry operation, the sensor of indoor heat
exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value.
Usual cooling capacity control
R
When the value is in Q zone, the
Q
compressor speed is kept.
P
Reduction of compressor speed
1) When temperature of the indoor heat exchanger drops below 5°C, the compressor speed is reduced. (P zone)
2) When temperature of the indoor heat exchanger rises in the range from 6°C to under 7°C, the compressor speed is kept. (Q zone)
3) When temperature of the indoor heat exchanger rises to 7°C or higher, the capacity control operation returns to the usual control in cooling operation. (R zone)
55°C
52°C
48°C
Indoor heat exchanger temperature
<In heating operation>
(Prevent-overpressure control for refrigerating cycle) In heating operation, the sensor of indoor heat ex-
changer detects condensation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value.
Reduction of compressor speed
P
When the value is
Q
in Q zone, the compressor speed is kept.
R
Usual heating capacity control
1) When temperature of the indoor heat exchanger rises in the range from 52°C to 55°C, the compressor speed is kept. (Q zone)
When temperature of the indoor
heat exchanger drops in the range from 48°C to under 55°C, the compressor speed is kept. (Q zone)
2) When temperature of the indoor heat exchanger rises to 55°C or higher, the compressor speed is reduced. (P zone)
3) When temperature of the indoor heat exchanger does not rise to 52°C, or when it drops below to 48°C, the capacity control operation returns to the usual control in heating operation. (R zone)
Page 43
Item
FILE NO. SVM-19040
- 43 -
Operation flow and applicable data, etc.
Description
7. Defrost control (Only in heating operation)
(This function removes frost adhered to the outdoor heat exchanger.)
The temperature sensor of the outdoor heat ex­changer (Te sensor) judges the frosting status of the outdoor heat exchanger and the defrost operation is performed with 4-way valve reverse defrost system.
Start of heating operation
TE(°C)0 10 15
2
5
10
25
*TheminimumTEvalueandTovaluebetween10and15minutesafterheatingoperationhas
started are stored in memory as TE0 and TO0, respectively.
Table 1
Defrost zone
A zone B zone C zone D zone
Table 2
Heating operation
(time)
a 37 37 43 51 55 55 b c d
The necessity of defrost operation is detected by the outdoor heat exchanger temperature. The conditions to detect the necessity of defrost operation differ in A, B, or C zone each. (Table 1)
c b a d
Azone
Bzone
*
In normal TO In abnormal TO ***
TO> -10 °C & (TE0-TE)-(TO0-TO)≥3°C & SH-SH0≤2
TO> -10 °C & (TE0-TE)-(TO0-TO)≥2°C & SH-SH0≤2
To> -10 °C & TE≤ -25°C & SH-SH0≤2
TO > -10 °C & Accumulate heating operation time > e minute & TE < 0 °C
Model
05TKVG-EE 07TKVG-EE 10TKVG-EE 13TKVG-EE 16TKVG-EE 18TKVG-EE
31 31
31 31 31 31 31
39 49 53 53
90
Czone
TE0-TE≥3°C & SH-SH0≤2
TE0-TE≥2°C & SH-SH0≤2
Dzone
(min.)
31
<Defrost operation>
• Defrost operation in A to C zones
1) Stop operation of the compressor for 40 seconds.
2) Invert (OFF) 4-way valve 40 seconds after stop of the compressor.
3) The outdoor fan stops at the same time when the compressor stops.
4) When temperature of the indoor heat exchanger becomes 38°C or lower, stop the indoor fan.
<Finish of defrost operation>
• Returning conditions from defrost
operation to heating operation
1) Temperature of outdoor heat exchanger rises to +8°C or higher for 3 seconds.
2) Temperature of outdoor heat exchanger is kept at +7°C or higher for 60 seconds.
3) Defrost operation continues for 10 minutes.
<Returning from defrost operation>
1) Stop operation of the compressor for approx. 40 seconds.
2) Invert (ON) 4-way valve approx. 30 seconds after stop of the compressor.
3) The outdoor fan starts rotating at the same time when the compressor starts.
Page 44
Item
FILE NO. SVM-19040
- 44 -
Operation flow and applicable data, etc.
Description
8. Louver control
1) Louver position
This function controls the air direction of the indoor unit.
The position is automatically controlled according to the operation
mode (COOL/HEAT).
The set louver position is stored in memory by the microcomputer,
and the louver returns to the stored position when the next operation is performed. (Cooling/Heating memory position)
The angle of the louver is indicated as the louver closes fully is 0°.
1) Louver position in cooling operation
Cooling operation/
AUTO (COOL)
Initial setting of "Cooling storage position" Louver : Directs downward (40.9°)
2) Louver position in heating operation
Heating operation/
AUTO (HEAT)
2) Air direction adjustment
Horizontal
blowing
3) Swing
Inclined blowing
Swing operation is perfor in range 35° with the Fixed position as
the center.
If the swing range exceeded either upper or lower limit position,
swing operation is perfomed in range 35° from the limit.
Initial setting of “Heating storage position” Louver : Directs downward (80.5°)
Air direction
Upper Limit Position.
Swing
o
range 35
Fixed Position before start swing.
Blowing
downward
o
17.5
o
17.5
Lower Limit Position.
Inclined blowing
Upper Limit Position.
Fixed Position before start swing
Swing range 35
The louver position can
be arbitrarily set up by pressing [FIX] button.
Horizontal
blowing
Swing
When pressing [SWING] button during operation, the louver starts swinging.
o
5
o
30
o
Lower Limit Position
Page 45
Item
FILE NO. SVM-19040
- 45 -
Operation flow and applicable data, etc.
Description
9. ECO operation
+6.5 +6.0
+5.5
+5.0 +4.5 +4.0
+3.5
+3.0
+2.5
+2.0 +1.5 +1.0
+0.5 TSC
-0.5
-1.0
-2.0
When pressing [ECO] button on the remote controller, a Economic operation is performed.
<Cooling operation>
This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure.
Frequency
Zone
12
Dry Max
11
*12 *11
10
*10
9
*
8 7
*8
6
5
4 3
2
Min
1
Hz
OFF
1H 2H
3H
4H
Time
<Cooling operation>
1) The control target temperature increase 0.5ºC per hour up to 2ºC starting from the set temperature
when ECONO has been received.
2) The indoor fan speed is depend on presetting and can change every speed after setting ECO
FAN
operation.
3) The compressor speed is controlled as shown in the left figure.
Fan speed depend on presetting and can change every speed.
Hz
05TKVG-EE
Cool min
DRY max
<Heating operation>
0
–0.5
A
–1.0 –1.5
B –2.0 –2.5 –3.0 –4.0 –5.0 –6.0 –7.0 –8.0
(Room temp. – Set temp.)
–9.0
C
–10.0 –11.0
* 12 (DRY max - COOL min) /6 x 5 + COOL min * 11 (DRY max - COOL min) /6 x 4 + COOL min * 10 (DRY max - COOL min) /6 x 3 + COOL min
* 9 (DRY max - COOL min) /6 x 2 + COOL min * 8 (DRY max - COOL min) /6 x 1 + COOL min
20
35
07TKVG-EE
20
35 35
30 minutes
10TKVG-EE
20
Time Compressor
A
B
C
13TKVG-EE 16TKVG-EE
20
35 35
20
<Heating operation>
speed
1) Setting the compressor speed to
0Hz
A zone
aHz
2) The indoor fan speed is depend
B zone
a to cHz
C zone
cHz
18TKVG-EE
16
35
Max. aHz, the temperature zone in which the operation can be
performed with Max. cHz is
gradually widened after 30 minutes passed when starting ECO operation.
on presetting and can change every speed after setting ECO
operation.
Hz
a
c
05TKVG-EE
20
31 31
07TKVG-EE
20
10TKVG-EE
20
40
13TKVG-EE 16TKVG-EE
20
55 45
20
18TKVG-EE
16
45
Page 46
Item
FILE NO. SVM-19040
- 46 -
Operation flow and applicable data, etc.
Description
10. Temporary operation
Pressing [RESET] button starts the temporary opera­tion of [AUTO] operation. When keeping [RESET] button pressed for 10 seconds or more, the temporary [COOL] operation is performed.
1) When pressing [RESET] button, the temporary [AUTO] operation starts.
2) When keeping [RESET] button pressed for 3 seconds or more, Pi, Pi, Pi sound is heard and [AUTO RESTART] control is changed.
Press RESET button.
3) When keeping [RESET] button pressed for 10 seconds or more, “Pi” sound is heard and the temporary [COOL]
Did you press [RESET] button
for 3 seconds or more?
YES
Did you press [RESET] button
for 10 seconds or more?
NO
Switch to [AUTO RESTART] control.
NO
Temporary [AUTO] operation
YES
Temporary [COOL] Operation
operation starts.
4) To stop the temporary operation, press the button again.
11. Discharge temperature control 1. Purpose
Td value
117°C 115°C 106°C 103°C
96°C
Control operation
Judges as an error and stops the compressor. Reduce the compressor speed. Reduce slowly compressor speed. Keeps the compressor speed. If the operation is performed with lower speed than one
commanded by the serial signal, speed is slowly raised up to the commanded speed.
Operates with speed commanded by the serial signal.
This function detects error on the refrigerating cycle or error on the com­pressor, and performs protective control.
2. Operation
• Control of the compressor speed
The speed control is performed as described in the left table based upon the discharge temperature.
12. High pressure control
Cooling
Heating
(TE)
(TC)
63°C
62°C
63°C
57°C
61°C
55°C
59°C
53°C
49°C
55°C
Control operation
1. Purpose
This function detects error on the refrigerating cycle or error on the com­pressor, and performs protective control.
2. Operation
Control of the compressor speed The speed control is performed as described in the left table based upon the heat exchanger temperature (TE, TC).
Page 47
Item
FILE NO. SVM-19040
- 47 -
Operation flow and applicable data, etc.
Description
13. Pulse Modulating valve (P.M.V.)
control
SH control
This function controls throttle amount of the refrigerant in the refrigerating cycle.
According to operating status of the air conditioner, this function also controls the open degree of valve with an expansion valve with pulse Modulation.
Starting up
Initialize
Move to
initial position
Compressor ON
Td
release control
1) When starting the operation, move the valve once until it fits to the stopper. (Initialize)
* In this time, “Click” sound may be
heard.
2) Adjust the open degree of valve by super heat amount. (SH control)
3) If the discharge temperature was exces­sively up, adjust the open degree of valve so that it is in the range of set tempera­ture. (Discharge temp. control)
4) When defrost operation is performed, the open degree of valve is adjusted accord­ing to each setup conditions during preparation for defrost and during defrost operation (4-way valve is inversed.).
5) To turn off the compressor while the air conditioner stops by control of the thermostat or by remote controller, adjust the open degree of valve to the setup value before stop of the compressor.
PMV open degree control
Stop by
remote controller
Room temp. sensor
(Ta sensor) control
Power OFF
* SH (Super Heat amount) =
Ts (Temperature of suction pipe of the compressor) – Tc or Te (Heat exchanger temperature at evaporation side)
* PMV: Pulse Modulating Valve
Defrost
Page 48
Item
FILE NO. SVM-19040
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Operation flow and applicable data, etc.
Description
14. Self-Cleaning
function
Unit now performing cooling or dry operation
Press “STOP” button
Only timer indicator lights, and Self Cleaning operation starts
Time set now elapses
Operation stops
1. Purpose
The Self-Cleaning operation is to minimize the
growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air conditioner clean.
Self-Cleaning operation
When the cooling or dry operation shuts
down, the unit automatically starts the Self­Cleaning operation which is then performed for the specified period based on duration of the operation which was performed prior to the shutdown, after which the Self-Cleaning operation stops. (The Self-Cleaning operation is not performed after a heating operation.)
2. Operation
1) When the stop signal from the remote
controller or timer-off function is received, only the timer indicator light.
2) The period of the Self-Cleaning operation
is determined by the duration of the operation performed prior to the reception of the stop code.
3) After the Self-Cleaning operation has
been performed for the specified period, the unit stops operating.
• During Self-Cleaning operations: The louver opens slightly. The indoor fan operates continuously at a speed of 500 rpm.
Self-Cleaning operation times
Self-Cleaning operation time
No Self-Cleaning operation
performed (0 minutes)
30 mins.
Cooling: Auto (cooling) Dry
Heating: Auto (heating)
Auto (fan only)
Shutdown
Operation time
Up to 10 minutes
10 minutes or longer
No Self-Cleaning operation performed
• To stop an ongoing Self-Cleaning operation at any time Press the start/stop button on the remote controller twice during the Self-Cleaning operation. (After pressing the button for the first time, press it for the
second time without delay (within 10 minutes).)
Page 49
Item
FILE NO. SVM-19040
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Operation flow and applicable data, etc.
Description
14. Self-Cleaning function
14-1-1. Self-Cleaning diagram
Operation display ON OFF OFF
FCU fan
FCU louver OPEN OPEN (12.7º) CLOSE
Timer display
Compressor
CDU fan ON or OFF
rpm is depend on presetting. (500RPM)
depend on presetting of timer function. depend on presetting of timer function.
depend on presetting per room temperature.
depend on presetting per room temperature.
Cool mode or dry mode
operation more than 10 mins.
ON ON
ON or OFF
ON or OFF
Self-Cleaning mode
Turn off by remote controller or
timer-off function.
ON
OFF OFF
OFF OFF
operate 30 mins.
Automatically turn-off.
OFF
ON or OFF
14-1-2. Self-Cleaning function release
How to set/cancel Self-Cleaning function
To set/cancel the Self-Cleaning function, proceed as follows:
Setting diagnosis code "06" on remote controlle (See detail of setting diagnosis code in 11-4-1)
Turn on the power supply to air
conditioner, after
Set or Cancel Self-Cleaning function by push the RESET button on air conditioner. When setting is changed, the sound warning will alarm "Beep". The setting is changed following below.
ON
OFF
that press [RESET] button on air conditioner 1 time to turn on the air conditioner (The LED display will show in operation LED)
Take the remote controller to direction of LED
1
display on air conditioner, press button "up" (see
Turn on air conditioner again by remote controller
to confirm setting.
OFF
detail of setting diagnosis code in 11-4-1) 1 time to send the code "07" *(within 3 sec. after press [RESET] button),* then air conditioner will shutdown automatically. Also, LED display will show flash follow the able below.
Operation time
ON
Self-cleaning
function
ON
OFF
Note) Table above will show current status of
Self-Cleaning function
Operation LED
flash 1 Hz
flash 1 Hz
Timer LED
not flash
Flash 1 Hz
OPERATION / RESET Button
1
Page 50
Item
FILE NO. SVM-19040
- 50 -
Operation flow and applicable data, etc.
Description
15. Remote-A or B selection
Setting the remote controller
To separate using of remote control for each indoor unit in case of 2 air conditioner are installed nearly.
Remote Control B Setup.
1) Press [RESET] button on the indoor unit to turn the air conditioner ON.
2) Point the remote control at the indoor unit.
3) Push and hold [CHECK] button on the Remote Control by the tip of the pencil. "00" will be shown
shown on the display (Picture ).
4) Press [MODE] during pushing [CHECK]."B" will show on the display and "00" will disappear and
the air conditioner will turn OFF. The Remote
Control B is memorized (Picture ).
Note : 1. Repeat above step to reset Remote Control
to be A.
2. Remote Control A has not "A" display.
3. Default setting of Remote Control from factory is A.
1
2
1. Purpose
This operation is to operate only one indoor unit using one remote controller.
2. Description
When operating one indoor unit in a situation where two indoor units have been installed in the same room or nearby rooms, this operation prevents the remote controller signal from being received simultaneously by both units, thus preventing both units from operating.
3. Operation
The indoor unit on which the remote controller selection has been set to B receives the signal of the remote control­ler also set to B. (At the factory the remote controller selection is set to A on all the indoor units. There is no A setting display.)
6. Hi-POWER
1
Mode
([Hi-POWER] button on the remote controller
is pressed)
When [Hi-POWER] button is pressed while the indoor unit is in Auto, Cooling or Heating operation, Hi­POWER mark is indicated on the display of the remote controller and the unit operates as follows.
1. Automatic operation
The indoor unit operates in according to the
current operation.
2. Cooling operation
The preset temperature drops 1ºC
(The value of the preset temperature on the
remote controller does not change.) The indoor unit's fan speed level increase 1 tap
3. Heating operation
The preset temperature increases 2ºC
(The value of the preset temperature on the
remote controller does not change.) The indoor unit's fan speed level increase 1 tap
4. The Hi-POWER mode can not be set in Dry operation
Page 51
Item
FILE NO. SVM-19040
- 51 -
Operation flow and applicable data, etc.
Description
17. Display lamp brightness adjustment
To decrease the display lamp brightness or turn it off.
1. Press and hold for 3 seconds until brightness level ( , , or ) is shown on remote control LCD then release the button.
2.. Press
Remote control
LCD
• In the examples of
Rise
or
Decrease
Operation display Brightness
Lamp illuminates full brightness.
Lamp illuminates 50% brightness.
Lamp illuminates 50% brightness and the operation lamp is turned off.
All lamps are turned off.
to adjust brightness in 4 levels.
and , the lamp illuminates for 5 seconds before going off.
100%
50%
50%
All turned off
Operation
18.
mode select table
Operating system setting
1.
Purpose Choosing the operating system as appropriate in real condition
2.
Operation Factory default setting prefer "Heat pump" system. Through it is able to cooling only system heating only system or return to factory default.
Do cut J804 for cooling only system
Do cut J805 for heating only system
Do cut both of J804 and J805 for return to factory default.
Page 52
Item
FILE NO. SVM-19040
- 52 -
Operation flow and applicable data, etc.
Description
19. QUIET mode
20. Silent
Operation
The "Quiet mode" selected from [ FAN ] button;
- The fan of the indoor unit will be restricted the
revolving speed at speed UL.
- The compressor speed is controlled as shown
in the figure.
Model Cool/Heat min 20.4 20.4 Quiet Cool (Hz) 20.4 21.6 Quiet Heat (Hz) 23.4 30.6
Model Cool/Heat min 20.4 20.4 Quiet Cool (Hz) Quiet Heat (Hz)
05K 07K
13K 16K
34.2 40.8
32.4 45.0
10K
20.4
31.2
39.6
18K
16.2
26.4
37.2
The "Quiet mode" is canceled by [ FAN ] button is pressed to select other speed.
Silent button on remote controller is pressed. Silent : Cooling/heating capacity is limited maximum for 70% of rated. Only compressor speed is limited.
Quiet mode is the system which, control the revolving speed of indoor fan to work constantly at lower than speed L. In addition, noise level of indoor unit is less than usual.
Remarks :
1. Quiet mode is unable to work in dry mode.
2. Quiet mode is appropriate to work with less
cooling load and less heating load condition. Because of the fan speed may not enough the cooling capacity or heating capacity.
This function is used when the user need to keep silent at outdoor side. It is limit maximum compressor speed. Sound level can be implemented by silent level.
Sound level:
Rated level > Silent
Note:
Due to Silent operation reason, In adequate cooling/heating capacity may occur.
Silent maximum Operation Hz
Model
Cooling Heating
RAS-05TKVG-EE
RAS-07TKVG-EE
RAS-10TKVG-EE
RAS-13TKVG-EE
RAS-16TKVG-EE
RAS-18TKVG-EE
ECO AND SILENT OPERATION
Press
: Start and stop the operation.
NORMAL ECO SILENT
25.8 36.0
37.8 48.0
46.2 57.0
55.2 57.0
44.4 65.4
36.0 58.2
Page 53
9-3. Auto Restart Function
FILE NO. SVM-19040
- 53 -
This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down. The operation will resume without warning three minutes after power is restored.
This function is not set to work when shipped from the factory. Therefore it is necessary to set it to work.
9-3-1. How to Set the Auto Restart Function
To set the auto restart function, proceed as follows: The power supply to the unit must be on ; the function will not set if the power is off. Press the [RESET] button located in the center of the front panel continuously for three seconds. The unit receives the signal and beeps three times. The unit then restarts operating automatically in the event of power supply being accidentally shut down.
• When the unit is standby (Not operating)
Operation
Press [RESET] button for more than three seconds. (Less than 10 seconds)
OPERATION / RESET Button
• When the unit is in operation
Operation
Press [RESET] button for more than three seconds. (Less than 10 seconds)
Motions
The unit is on standby.
The unit starts to operate. The white indicator is on.
After approx. three seconds,
The unit beeps three times and continues to operate.
The white indicator flashes for 5 seconds.
If the unit is not required to operate at this time, press [RESET] button once more or use the remote controller to turn it off.
Motions
The unit is in operation. The white indicator is on.
The unit stops operating. The white indicator is turned off.
• While the filter check indicator is on, the RESET button has the function of filter reset betton.
OPERATION / RESET Button
After approx. three seconds,
The unit beeps three times. The white indicator flashes
for 5 seconds.
If the unit is required to operate at this time, press [RESET] button once more or use the remote controller to turn it on.
Page 54
9-3-2. How to Cancel the Auto Restart Function
FILE NO. SVM-19040
- 54 -
To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times. The unit will be required to be turned on with the remote controller after the main power supply is turned off.
• When the system is on stand-by (not operating)
Operation
Press [RESET] button for more than three seconds. (Less than 10 seconds)
OPERATION / RESET Button
• When the system is operating
Operation
Press [RESET] button for more than three seconds. (Less than 10 seconds)
Motions
The unit is on standby.
The unit starts to operate. The white indicator is on.
After approx. three seconds,
The unit beeps three times and continues to operate. If the unit is not required to operate at this time, press [RESET]
button once more or use the remote controller to turn it off.
Motions
The unit is in operation. The white indicator is on.
The unit stops operating. The white indicator is turned off.
The unit beeps three times. If the unit is required to operate at this time, press [RESET] button
once more or use the remote controller to turn it on.
OPERATION / RESET Button
9-3-3. Power Failure During Timer Operation
When the unit is turned off because of power failure during timer operation, the timer operation is can­celled. In that case, set the timer operation again.
NOTE :
The Daily Timer is reset while a command signal can be received from the remote controller even if it stopped due to a power failure.
After approx. three seconds,
Page 55
9-4. Remote Controller and Its Fuctions
FILE NO. SVM-19040
- 55 -
9-4-1. Parts Name of Remoe Controller
1
Infrared signal emitter
2
Start/Stop button ( )
3
Mode select button (MODE)
4
Temperature button (TEMP)
5
Fan speed button (FAN)
6
Swing louver button (SWING)
7
Set louver button (FIX)
8
Off timer button (OFF)
9
High power button (Hi-POWER)
10
18
ECO/SILENT button (ECO/SILENT)
11
19
Clear button (CLEAR)
12
Check button (CHECK)
9-4-2. Operation of remote control
1. AUTOMATIC OPERATION
To automatically select cooling, heating or fan only operation.
MODE
1. Press
: Select A.
3
2 7
9 8 #
MODE
1
Hi POWER ECO
SILENT OFF
4
6 5
! "
2. Press
3. Press
: Set the desired temperature. Min. 17°C, Max. 30°C.
FAN
: Select AUTO, LOW , LOW+ , MED , MED+
, HIGH
, or QUIET .
2. COOLING / HEATING / FAN ONLY OPERATION
1. Press : Select Cool , Heat , or Fan only .
MODE
2. Press : Set the desired temperature.
Cooling / Heating : Min 17°C - Max 30°C Fan Only: No temperature indication
FAN
: Select AUTO, LOW , LOW+ , MED , MED+
, HIGH 3. Press
, or QUIET .
3. DRY OPERATION (COOLING ONLY)
For dehumidification, a moderate cooling performance is controlled automatically.
1. Press
2. Press
MODE
: Select Dry .
: Set the desired temperature. Min. 17°C, Max. 30°C
Note: Dry Mode fan speed is set to Auto only.
4. Hi-POWER OPERATION
To automatically control room temperature and airflow for faster cooling or heating operation (except in DRY and FAN ONLY mode).
Press : Start and stop the operation.
Note: Hi-POWER operation symbol will appear on remote control display.
Page 56
5. ECO / SILENT OPERATION
FILE NO. SVM-19040
- 56 -
ECO OPERATION
To automatically control room temperature to save energy (Except in DRY and FAN ONLY mode) Note: Cooling operation; the set temperature will increase automatically 1 degree/hour for 2 hours
(maximum 2 degree increase). For Heating operation the set temperature will decrease.
SILENT OPERATION
To reduce outdoor sound level during operation (Except in DRY and FAN ONLY mode)
Note: Though operating silently, the Heating or Cooling capacity is still prioritized to ensure having sufficient comfort inside the room.
ECO and SILENT operation setting
Press
NORMAL
Note: ECO and SILENT operation symbol will appear on remote control display.
6. TIMER OPERATION
To automatically control room to save energy (except in DRY and FAN ONLY mode)
Press for enter OFF timer setting.
1
2
Press for select desired OFF timer. (0.5 - 12 hrs)
Press for set OFF timer.
3
Press again for cancel OFF timer.
4
Note: TIMER OPERATION symbol will appear on remote control display.
: Start and stop the operation.
ECO
Setting the OFF timer
SILENT
7. TEMPORARY OPERATION
In case of the misplaced or discharged remote control
Pressing the RESET button, the unit can start or stop without using the remote control.
Operation mode is set on AUTOMATIC operation, preset temperature is 24°C and fan operation is automatic speed.
8.AUTO RESTART OPERATION
To automatically restart the conditioner after the power failure (Power of the unit must be on.)
Setting
1.
Press and hold the RESET button on the indoor unit for 3 seconds to set the operation.(3 beep sound and OPERATION lamp blink 5 time/sec. for 5 seconds) Do not operate ON timer and OFF timer.
2.
Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation. (3 beep sound but OPERATION lamp does not blink)
In case of timer are set, AUTO RESTART OPERATION does not activate.
Page 57
9. MANUAL DEFORST OPERATION
FILE NO. SVM-19040
- 57 -
To defrosting the heat exchanger of the outdoor unit during Heating operation.
Press and hold
[   ] as picture 1 for 2 sec.
MODE
: for 5 sec. then remote control display will show
Hi POWER ECO
SILENT OFF
9-4-3. Name and Functions of Indications on Remote Controller
[Display]
All indications, except for the clock time indicator, are displayed by pressing the
1. Transmission mark
This transmission mark indicates when the remote controller transmits signals to the indoor unit.
2. Mode indicator
Indicates the current operation mode. (A : Auto, : Cool, : Dry,
: Heat, : Fan only)
4. FAN speed indicator
Indicates the selected fan speed. AUTO or five fan speed levels
(
LOW , LOW+ , MED HIGH , and QUIET ) can be shown. Indicates AUTO when the operating mode is : Dry.
3. Temperature indicator
Indicates the temperature setting. (17°C to 30°C)
1
2
3
6
5. OFF TIMER indicator
Indicates when the OFF timer is setting press the OFF timer button and select off time by TEMP botton after that back to press OFF timer again to timer setting and push CLEAR button to stop the operation.
6. Hi-POWER indicator
Indicates when the Hi-POWER operation starts. Press the Hi-POWER button to start and press it again to stop the operation.
7. ECO indicator
Indicates when the ECO is in Press the ECO/ button to start and stop operation.
8. A, B change indicator remote controller
When the remote controller switching function is set, “B” appears in the remote controller display. (When the remote controller setting is “A”, there is no indication at this position.)
MODE
Hi POWER ECO
SILENT OFF
button.
, MED+
activated.
,
8
4
9
7
5
Indicates when the SILENT operation start. Press the ECO/ button to start and stop operation.
NORMAL
ECO
SILENT
9. SILENT indicator
Page 58
10. INSTALLATION PROCEDURE
FILE NO. SVM-19040
- 58 -
10-1. Installation Diagram of Indoor and Outdoor Units
Hook
300 mm or more
Installation
1
plate
Shield pipe
3
Batteries
(Attach to the front panel.)
6
Flat head wood screw
Remote control holder
300 mm or more
Air filter
4
65 mm or more
Hook
Refrigerant piping must be protected from physical damage. Install a plastic cover or equivalent.
Vinyl tape Apply after carrying out a drainage test.
For the rear left, bottom left and left piping
Wall
Cut out a piece of SPACER from indoor unit packaging box, roll it and insert between the indoor unit and wall to tilt the indoor unit for better operation.
The auxiliary piping can be connected to the left, rear left, rear right, right, bottom right or bottom left.
Right
Rear right
Bottom right
Rear left
Left
Bottom left
Do not allow the drain hose to get slack.
Cut the piping hole sloped slightly.
Make sure to run the drain hose sloped downward.
Wireless remote control
2
RAS-05, 07, 10, 13TAVG-EE
C 600 600 D 400 600 E 45 100
F 100 100
RAS-16, 18TAVG-EE
• Loading Batteries
1. Remove the battery cover.
2. Insert 2 new batteries (AAA type)
following the (+) and (-) positions.
E mm or more
C mm or more
F mm or more
D mm or more
Saddle
Extension drain hose (Not available, provided by installer)
C mm or more
Before installing the wireless remote controller
Insulate the refrigerant pipes separately with insulation, not together.
6 mm thick heat resisting polyethylene foam
AC
L
3 Batteries
2 Wireless remote controller
Page 59
10-2. Installation
FILE NO. SVM-19040
- 59 -
10-2-1. Optional installation parts
Part
code
Refrigerantpiping Liquidside:Ø6.35mm
A
Gasside:Ø12.70mm
Pipeinsulatingmaterial
B
(polyethylenefoam,6mmthick)
C
Putty,PVCtapes
Parts name Q’ty
(RAS-05,07,10,13TKVG-EE)
(RAS-16,18TKVG-EE)
<Fixing bolt arrangement of outdoor unit>
500 mm
Air inlet
97 mm
Ø25 mm
53 mm
300 mm
280 mm
Air outlet
Drain outlet
One
each
1
One
each
340 mm
320 mm
108 mm 125 mm
28 mm
Ø25 mm
86 mm
Air outlet
600 mm
Air inlet
102 mm
90 mm
Drain outlet
RAS-05, 07, 10, 13TAVG-EE
RAS-16, 18TAVG-EE
Fig. 10-2-1
·
Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind. Use 8 mm or 10 mm anchor bolts and nuts.
·
· If it is necessary to drain the defrost water, attach drain nipple 9 and cap waterproof
10
to
the bottom plate of the outdoor unit before installing it.
Page 60
10-2-2. Accessory and installation parts
FILE NO. SVM-19040
- 60 -
Indoor Unit
No. Part name No. Part name
1
Installationplate×1
3
Battery×2
5
7
Mountingscrew×6
Owner’sManual×1
2
Wirelessremotecontrol×1
4
Remotecontrolholder×1
6
8
Flatheadwoodscrew×2
InstallationManual×1
Outdoor Unit
No. Part name No. Part name
9
Drainnipple×1
*NotrequiretouseforRAS-05,07,10,13TAVG
10
Capwaterproof×2*
Air lters
Cleanevery2weeks.
1. Opentheairinletgrille.
2. Removetheairfilters.
3. Vacuumorwashandthendrythem.
4. Reinstalltheairfiltersandclosetheairinletgrille.
Page 61
10-2-3. Installation/Servicing Tools
FILE NO. SVM-19040
- 61 -
Changes in the product and components
In the case of an air conditioner using R32, in order to prevent any other refrigerant from being charged accidentally, the service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)
• In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)
New tools for R32(R410a)
New tools for
R32(R410a)
Gauge manifold
Charge hose
Electronic balance for refrigerant charging
Torque wrench (nominal diam. 1/2, 5/8)
Flare tool (clutch type)
Gauge for projection adjustment
Vacuum pump adapter
Applicable to R22 model
×
×
¡
×
¡
——
¡
Changes
As pressure is high, it is impossible to measure by means of conventional gauge. In order to prevent any other refrigerant from being charged, each port diameter has been changed.
In order to increase pressure resisting strength, hose materials and port size have been changed (to 1/2 UNF 20 threads per inch). When purchasing a charge hose, be sure to confirm the port size.
As pressure is high and gasification speed is fast, it is difficult to read the indicated value by means of charging cylinder, as air bubbles occur.
The size of opposite sides of flare nuts have been increased. Incidentally, a common wrench is used for nominal diameters 1/4 and 3/8.
By increasing the clamp bar’s receiving hole, strength of spring in the tool has been improved.
Used when flare is made by using conventional flare tool.
Connected to conventional vacuum pump. It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose. The charge hose connecting part has two ports-one for conventional refrigerant (7/16 UNF 20 threads per inch) and one for R32(R410a). If the vacuum pump oil (mineral) mixes with R32(R410a) a sludge may occur and damage the equipment.
Gas leakage detector
• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation R32(R410a) and protector coating in the U.S's ARI specified rose color (ARI color code: PMS 507).
• Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to the charge hose’s port size.
×
Exclusive for HFC refrigerant.
Page 62
10-3. Indoor Unit
FILE NO. SVM-19040
- 62 -
10-3-2. Cutting a hole and mounting installation
10-3-1. Installation place
• A place which provides the spaces around the indoor unit as shown in the diagram
• A place where there are no obstacles near the air inlet and outlet
A place which allows easy installation of the piping to the outdoor unit A place which allows the front panel to be opened
• The indoor unit shall be installed at least 2.5 m height.
• Also, it must avoided to put anything on the top of the indoor unit.
CAUTION
Direct sunlight to the indoor unit’s wireless
receiver should be avoided.
The microprocessor in the indoor unit should not
be too close to RF noise sources. (For details, see the owner’s manual.)
<Remote control>
A place where there are no obstacles such as a
curtain that may block the signal from the indoor unit.
Do not install the remote control in a place exposed
to direct sunlight or close to a heating source, such as a stove.
Keep the remote control at least 1 m apart from the
nearest TV set or stereo equipment. (This is necessary to prevent image disturbances or noise interference.)
The location of the remote control should be
determined as shown below.
(Top view)
Remote control
Indoor unit
Reception range
45°
45°
Remote control
Indoor unit
(Side view)
75°
Reception range
<Cutting a hole>
When installing the refrigerant pipes from the rear.
Pipe hole
Ø65 mm
The center of the pipe hole is above the arrow.
120 mm
Fig. 10-3-2
1. After determining the pipe hole position on the
mounting plate (A), drill the pipe hole (65 mm) at a slight downward slant to the outdoor side.
NOTE
When drilling a wall that contains a metal lath, wire
lath or metal plate, be sure to use a pipe hole brim ring sold separately.
<Mounting the installation plate>
65
103
300
50
1
Installation plate
300
Pipe hole
144
50
Indoor unit
Hook
Thread
Hook
Weight
Fig. 10-3-3
Hook
Pipe hole
Mounting screw
5
Fig. 10-3-1
Page 63
<When the installation plate is directly mounted on
FILE NO. SVM-19040
- 63 -
the wall>
1. Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit.
2. To mount the installation plate on a concrete wall with anchor bolts, utilize the anchor bolt holes as illustrated in the above figure.
3. Install the installation plate horizontally in the wall.
CAUTION
When installing the installation plate with a mounting screw, do not use the anchor bolt hole. Otherwise the unit may fall down and result in personal injury and property damage.
10-3-3. Piping and drain hose installation
<Piping and Drain Hose Forming>
* Since dewing results in a machine trouble, make
sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.)
Rear right
Rear left
Bottom left
Changing
Left
Bottom right
Right
Die-cutting
back body slit
drain hose
Piping preparation
Installation plate <Keep horizontal direction>
Anchor bolt
Projection 15 mm or less
Fig. 10-3-4
5 mm dia. hole
Mounting
screw
s
4 x 25
s
sss
Clip anchor (local parts)
Fig. 10-3-5
CAUTION
Failure to firmly install the unit may result in personal injury and property damage if the unit falls.
Fig. 10-3-6
1. Die-cutting back body slit
Cut out the slit on the leftward or right side of the back body for the left or right connection and the slit on the bottom left or right side of the back body for the bottom left or right connection with a pair of nippers.
2. Changing drain hose
For leftward connection, bottom-leftward connection and rear leftward connection’s piping, it is necessary to change the drain hose and drain cap.
<How to remove the drain hose>
The drain hose can be removed by removing the
screw securing the drain hose and then pulling out
the drain hose.
When removing the drain hose, be careful of any
sharp edges of steel plate. The edges can injuries.
To install the drain hose, insert the drain hose firmly
until the connection part contacts with heat insulator, and the secure it with original screw.
In case of block, brick, concrete or similar type walls, make 5 mm dia. holes in the wall.
Insert clip anchors for appropriate mounting screws
….
NOTE:
Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it.
Drain hose
Fig.10-3-7
<How to remove the Drain Cap>
Clip the drain cap by needle-nose pliers and pull out.
Fig. 10-3-8
Page 64
<How to fix the Drain Cap>
FILE NO. SVM-19040
- 64 -
1) Insert hexagon wrench (4 mm) in a center head.
Fig. 10-3-9
<Left-hand connection with piping>
Bend the connecting pipe so that it is laid within 43 mm above the wall surface. If the connecting pipe is laid exceeding 43 mm above the wall surface, the indoor unit may unstably be set on the wall. When bending the connecting pipe, make sure to use a spring bender so as not to crush the pipe.
Bend the connection pipe within a radius of 30 mm.
To connect the pipe after installation of the unit (figure)
2) Firmly insert drain cap.
Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap. Application causes
deterioration and drain leakage of the plug.
No gap
Insert a hexagon wrench (4 mm).
Fig. 10-3-10
CAUTION
Firmly insert the drain hose and drain cap; otherwise, water may leak.
<In case of right or left piping>
After scribing slits of the back body with a knife or a
making-off pin, cut them with a pair of nippers or an equivalent tool.
(To the forefront of flare)
260 mm
210 mm
R 30 mm (Use polisin (polyethylene)
43 mm
core or the like for bending pipe.)
80
Gas side
Liquid side
Outward form of indoor unit
Use the handle of screwdriver, etc.
Fig. 10-3-13
NOTE
If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall.
After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them.
CAUTION
Slit
Fig. 10-3-11
<In case of bottom right or bottom left piping>
After scribing slits of the back body with a knife or
a making-off pin, cut them with a pair of nippers or an equivalent tool.
Slit
2
-1
3
-
10
Fig.
Bind the auxiliary pipes (two) and connecting
cable with facing tape tightly. In case of leftward piping and rear-leftward piping, bind the auxiliary pipes (two) only with facing tape.
Indoor unit
Auxiliary pipes
Installation plate
Connecting cable
Carefully arrange pipes so that any pipe does not
stick out of the rear plate of the indoor unit.
Carefully connect the auxiliary pipes and
connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double-taping at the joint, moreover, seal the joint with the vinyl tape, etc.
Since dewing results in a machine trouble, make
sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.)
When bending a pipe, carefully do it, not to crush it.
Page 65
10-3-4. Indoor unit fixing
FILE NO. SVM-19040
- 65 -
1. Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks.
2. Swing the indoor unit to right and left to confirm that it is firmly hooked up on the installation plate.
3. While pressing the indoor unit onto the wall, hook it at the lower part on the installation plate. Pull the indoor unit toward you to confirm that it is firmly hooked up on the installation plate.
10-3-5. Drainage
1. Run the drain hose sloped downwards.
NOTE
Hole should be made at a slight downward slant on
the outdoor side.
Do not form the Do not rise the drain hose.
drain hose into
a wavy shape.



Press
(unhook)
Fig. 10-3-14
For detaching the indoor unit from the installation
plate, pull the indoor unit toward you while pushing its bottom up at the specified parts.


Fig. 10-3-15
50 mm or more
Do not put the drain hose end into water.
Do not put the drain hose end in the drainage ditch.
Fig. 10-3-16
2. Put water in the drain pan and make sure that the water is drained out of doors.
3. When connecting extension drain hose, insulate the connecting part of extension drain hose with shield pipe.
Shield pipe
Drain hose
Inside the room
Extension drain hose
Fig. 10-3-17
CAUTION
Arrange the drain pipe for proper drainage from the unit. Improper drainage can result in dew-dropping.
This air conditioner has the structure designed to drain water collected from dew, which forms on the back of the indoor unit, to the drain pan. Therefore, do not store the power cord and other parts at a height above the drain guide.
Wall
Drain guide
Space for pipes
Fig. 10-3-18
Page 66
10-4. Outdoor Unit
FILE NO. SVM-19040
- 66 -
-1. Installation place
10-4
A place which provides the spaces around the
outdoor unit as shown in the diagram
A place which can bear the weight of the outdoor
unit and does not allow an increase in noise level and vibration
A place where the operation noise and discharged
air do not disturb your neighbors
A place which is not exposed to a strong wind
A place free of a leakage of combustible gases
A place which does not block a passage
When the outdoor unit is to be installed in an
elevated position, be sure to secure its feet.
The allowable length of the connecting pipe.
Model
Chargeless Upto15m Upto15m
Maximumlength 15m 20m Additionalrefrigerentcharging 16–20m(20g/1m)
• The allowable height of outdoor unit installation site.
Model
Maximumheight 12m 12m
RAS-05, 07, 10, 13TAVG-EE
RAS-05, 07, 10, 13TAVG-EE
• A place where the drain water does not raise any problems
Precautions for adding refrigerant
• Use a scale having a precision with at least 10 g per index line when adding the refrigerant. Do not use a bathroom scale or similar instrument.
RAS-16, 18TAVG-EE
RAS-16, 18TAVG-EE
Snow protection plate
Front
Anchor bolts
Snow protection hood
At least 50 cm
Snow accumulation line
Holding frame
Install at least 50 cm above the snow accumulation line.
Fig. 10-4-1
CAUTION
1. Install the outdoor unit without anything blocking the air discharging.
2. When the outdoor unit is installed in a place exposed always exposed to strong wind like a coast or on a high storey of a building, secure the normal fan operation using a duct or a wind shield.
3. In particularly windy areas, install the unit such as to avoid admission of wind.
4.
Installation in the following places may result in trouble. Do not install the unit in such places.
A place full of machine oil.
A saline-place such as the coast.
A place full of sulfide gas.
A place where high-frequency waves are likely
to be generated as from audio equipment, welders, and medical equipment.
CAUTION
When the outdoor unit is installed in a place where the drain water might cause any problems, Seal the water leakage point tightly using a silicon adhesive or caulking compound.
10-4-2. Precautions about Installation in Regions
with Snowfall and Cold Temperatures
Do not use the supplied drain nipple for draining water.
Drain the water from all the drain holes directly.
To protect the outdoor unit from snow accumulation,
install a holding frame, and attach a snow protection hood and plate.
Do not use a double-stacked design.
Strong
wind
Fig.
10-4-
2
Page 67
10-4-3. Draining the Water
FILE NO. SVM-19040
- 67 -
• Holes are provided on the base plate of the outdoor unit to ensure that the defrost water produced during heating operations is drained off efficiently.
If a centralized drain is required when installing the unit on a balcony or wall, follow the steps below to drain off the water.
1. Proceed with water-proofing by installing the water-proof rubber caps in the 2 elongated holes on the base plate of the outdoor unit. [How to install the waterproof rubber caps]
1) Place four fingers into each cap, and insert
the caps into the water drain holes by pushing them into place from the underside of the base plate.
2) Press down on the outer circumferences of
the caps to ensure that they have been inserted tightly. (Water leaks may result if the caps have not been inserted properly, if their outer circumferences lift up or the caps catch on or wedge against something.)
2. Install the drain nipple and a commercially ailable dr
av diam
eter), (For the position where the dr installed, ref
hose
ain
and dr
ain
16 mm inside
(with off
the water.
ain nipple is
to the installation diagram
er
indoor and outdoor units.)
• Chec
k that the outdoor unit is horiz route the dr angle
Base plate
ain hose at a downw
while ensur
ing that it is connected tautly.
Drain nipple
ontal, and
ard sloped
Commercially available drain hose
Do not use ordinary garden hose, but one can flatten and prevent water from draining.
Fig. 10-4-4
of the
Water-proof rubber caps
(supplied with the outdoor unit)
Base plate
Drain nipple
Fig. 10-4-3
Page 68
10-4-4. Refrigerant piping connection
FILE NO. SVM-19040
- 68 -
<Tightening connection>
<Flaring>
Cut the pipe with a pipe cutter.
1.
90°
Obliquity
Roughness
Fig. 10-4-5
2. Insert a flare nut into the pipe, and flare the pipe.
Projection margin in flaring : A (Unit : mm)
A
Die
Pipe
Fig. 10-4-6
Ridgid (Clutch type)
Outer dia.
of copper pipe
Ø6.35 0 to 0.5 1.0 to 1.5 Ø9.52 0 to 0.5 1.0 to 1.5
Ø12.70 0 to 0.5 1.0 to 1.5
Pipes thickness
Imper
ial (wing nut type)
Outer dia. of copper pipe R32
Pipes thickness 0.8 mm or more
R32 tool used
0.8 mm or more
Ø6.35 1.5 to 2.0 Ø9.52 1.5 to 2.0
Ø12.70 2.0 to 2.5
Conventional tool
used
CAUTION
Do not scratch the inner surface of the flared part
when removing burrs.
Flare processing under the condition of scratches
on the inner surface of fl are processing part will cause refrigerant gas leak.
Warp
Align the centers of the connecting pipes and tighten
the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure.
Flare nutHalf union
Externally threaded side
Use a wrench to secure.
Use a torque wrench to tighten.
Internally threaded side
Fig. 10-4-7
CAUTION
Do not apply excess torque.
Otherwise, the nut may crack depending on the conditions.
(Unit : Nm)
Outer dia. of copper pipe
Ø6.35 mm
Ø9.52 mm
Ø12.70 mm
Tightening torque of flare pipe connections
The operating pressure of R32 is higher than that of R22 (Approx. 1.6 times). It is theref
ore necessar
y to fir connecting sections (which connect the indoor and outdoor units) up to the specified tightening torque. Incorrect connections ma leakage
, b
ut also damage to the refr
y cause not only a gas
Tightening torque
1
8 (1.6 to 1.8 kgf•m)
6 to 1
3
2 (3.0 to 4.2 kgf•m)
0 to 4
50 to 62 (5.0 to 6.2 kgf•m)
mly tighten the flare pipe
iger
ant cycle
Flare at indoor unit side
Flare at outdoor unit side
.
Fig. 10-4-8
Page 69
AIR PURGE
FILE NO. SVM-19040
- 69 -
acuate the air in the connecting pipes and in theEv indoor unit using a v refriger
ant in the outdoor unit. For details, see the
acuum pump. Do not use the
manual of the vacuum pump.
<Using a vacuum pump>
Be sure to use a vacuum pump with counter-flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops. (If oil inside of the vacuum pump enters into the air conditioner, which use R32, refrigeration cycle trouble may result.)
1. Connect the charge hose from the manif e toold valv the service port of the gas side packed valve.
2. Connect the charge hose to the port of the vacuum pump.
3. Open fully the low pressure side handle of the gauge manifold valve.
4. Operate the vacuum pump to start evacuating. Perform evacuating for about 15 minutes if the piping length is 20 meters. (15 minutes for 20 meters) (assuming a pump capacity of 27 liters per minute. Then confirm that the compound pressure gauge reading is -101 kP
a (76 cmHg).
5.6.Close the low pressure side valve handle of gauge manifold. Open fully the valve stem of the packed valves (both side of Gas and Liquid).
7. Remove the charging hose from the service port.
8. Securely tighten the caps on the packed valves.
Compound pressure gauge
–101 kPa (-76 cmHg)
Handle Lo
Charge hose (For R32 only)
Connecting pipe
Pressure gauge
Manifold valve
Handle Hi (Keep full closed)
Charge hose (For R32 only)
Vacuum pump adapter for counter-flow prevention (For R32 only)
CAUTION
KEEP IMPORTANT 6 POINTS FOR PIPING WORK
1) Take away dust and moisture (inside of the connecting pipes).
2) Tighten the connections (between pipes and unit).
3) Evacuate the air in the connecting pipes using a VACUUM PUMP.
4) Check gas leak (connected points).
5) Be sure to fully open the packed valves before operation.
6) Reusable mechanical connectors and flared joints are not allowed indoors. When mechanical connectors are reused indoors, sealing parts shall be renewed. When flared joints are reused indoors, the fl are part shall be refabricated.
<Packed valve handling precautions>
Open the valve stem all the way out, but do not try
to open it beyond the stopper.
Pipe size of Packed Valve
12.70 mm and smallers
15.88 mm
Securely tighten the valve cap with torque in the
following table
Cap Torque
Valve Rod Cap
Service Port Cap
Cap Size (H)
H17 - H19
H22 - H30
H14
H17
Size of Hexagon wrench
A = 4 mm
A = 5 mm
14~18 N.m
(1.4 to 1.8 kgf·m)
33~42 N.m
(3.3 to 4.2 kgf·m)
8~12 N.m
(0.8 to 1.2 kgf·m)
14~18 N.m
(1.4 to 1.8 kgf·m)
Packed valve at liquid side
Vacuum
pump
Packed valve at gas side
Service port (Valve core (Setting pin))
Fig. 10-4-9
Hexagon wrench is required.
A
H
Service Port Cap
Valve Rod Cap
Fig. 10-4-10
Page 70
10-5. Electrical works
FILE NO. SVM-19040
- 70 -
Model
Powersource 50Hz,220–240VSinglephase
Maximumrunningcurrent 5.0A 5.4A 7.2A 7.4A 9.0A 9.25A
Circuitbreakerrating 6.5A 7.0A 9.0A 9.5A 11.5A 12.0A
Powersupplycable H07RN-For60245IEC66(1.5mm
Connectingcable H07RN-For60245IEC66(1.5mm
10-5-1. Wiring Connection
<
Indoor unit>
Wiring of the connecting cable can be carried out without removing the front panel.
1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you.
2. Remove the terminal cover and cord clamp.
3. Insert the connecting cable (according to the local cords) into the pipe hole on the wall.
4. Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 20 cm from the front.
5. Insert the connecting cable fully into the terminal block and secure it tightly with screws.
6. Tightening torque : 1.2 N·m (0.12 kgf·m)
RAS-05TKVG-EE RAS-07TKVG-EE RAS-10TKVG-EE RAS-13TKVG-EE RAS-16TKVG-EE
2
ormore)
2
ormore)
<Outdoor unit>
1. Remove the valve cover, the electric parts cover and the cord clamp from the outdoor unit.
2. Connect the connecting cable to the terminal as identif ed by the matching numbers on the terminal block of indoor and outdoor unit.
3. Insert the power cord and the connecting cable carefully into the terminal block and secure it tightly with screws.
4. Use vinyl tape, etc. to insulate the cords which are not going to be used. Locate them so that they do not touch any electrical or metal parts.
5. Secure the power cord and the connecting cable with the cord clamp.
6. Attach the electric parts cover and the valve cover on the outdoor unit.
RAS-18TKVG-EE
H07RN-For60245IEC66
(2.5mm
7. Secure the connecting cable with the cord clamp.
8. Fix the terminal cover and air inlet grille on the indoor unit.
2
ormore)
Front panel
Air inlet grille
Screw
Screws
Terminal cover
Cord clamp
<How to install the air inlet grille on the indoor unit>
• When attaching the air inlet grille, the contrary of the removed operation is performed.
Fig. 10-5
Terminals block
Valve cover
-2
Fig. 10-5-1
Page 71
10-5-2. Power Supply and Connecting Cable Connection
FILE NO. SVM-19040
- 71 -
Power Supply Input at Indoor Unit Terminal Block (Recommend)
Indoor unit Outdoor unit
Power supply cable
Connecting cable
Power supply cable connect to
Terminal block (L N 1 2 3)
Earth line
Power supply cable
Connecting cable connect to
Terminal block (L N 1 2 3)
Earth line Earth line
Power supply cable
Power Supply Input at Outdoor Unit Terminal Block (Optional)
Connecting cable
Stripping length of the power supply cable
Earth line
50 mm
10 mm
10 mm
70 mm
Stripping length of the connecting cable
Earth line
50 mm
10 mm
10 mm
70 mm
Terminal block
Connecting cable
Terminal block
Connecting cable
Earth line
Connecting cable
RAS-05, 07, 10, 13TAVG-EE
Earth line
Connecting cable
RAS-16, 18TAVG-EE
Connecting cable
Indoor unit Outdoor unit
Connecting cable connect to
Terminal block (L N 1 2 3)
Connecting cable
Earth line
Stripping length of the connecting cable
50 mm
10 mm
10 mm
70 mm
Earth line
Terminal block
Connecting cable
Earth line
Connecting cable
RAS-05, 07, 10, 13TAVG-EE
Terminal block
Connecting cable
Earth line
Connecting cable
RAS-16, 18TAVG-EE
Power cord
Earth line
Power cord
Power cord
Earth line
Power cord
Page 72
Power supply input Wiring Diagram
FILE NO. SVM-19040
- 72 -
PowersupplyinputatIndoorunitTerminalBlock(Recommend)
L N 1 2 3
Power supply input
PowersupplyinputatOutdoorunitTerminalBlock(Optional)
L N
GND
CHASSIS
CHASSIS
EARTH
1 2 3
Indoor Terminal Block
INDOOR UNIT OUTDOOR UNIT
Outdoor Terminal Block
INDOOR UNIT OUTDOOR UNIT
CHASSIS
EARTH
L N 1 2 3
1 2 3 L N
CHASSIS
Indoor Terminal Block
Outdoor Terminal Block
N L
GND
Power supply input
1. The power supply must be same as the rated of air conditioner.
2. Prepare the power source for exclusive use with air conditioner.
3. Circuit breaker must be used for the power supply line of this air conditioner.
4. Be sure to comply power supply and connecting cable for size and wiring method.
5. Every wire must be connected f rmly.
6. Perform wiring works so as to allow a general wiring capacity.
7. Wrong wiring connection may cause some electrical part burn out.
8. Incorrect or incomplete wiring is carried out, it will cause an ignition or smoke.
9. This product can be connected to main power supply. Connection to fixed wiring : A switch which disconnects all poles and has a contact separation at least 3mm must be incorporated in the fixed wiring.
CAUTION
Page 73
10-6. Others
FILE NO. SVM-19040
- 73 -
10-6-1 . Gas leak test
Check places for indoor unit (Flarenut connection)
Check places for outdoor unit
Fig. 10-6-1
Check the flare nut connections for the gas leak with a gas leak detector or soap water.
NOTE : 1. Repeat previous step to reset Remote
Control to be A.
2. Remote Control A has not "A" display.
3. Default setting of Remote Control from factory is A.
12
Fig. 10-6-2
10-6-3. Test operation
To switch the TEST RUN (COOL) mode, press [RESET] button for 10 sec. (The beeper will make a short beep.)
10-6
-2. Remote Control A-B Selection
When two indoor units are installed in the same room or
adjacent two rooms, if operating a unit, two units may receive the remote control signal simultaneously and operate. In this case, the operation can be preserved by setting either one remote control to B setting. (Both are set to A setting in factory shipment.)
The remote control signal is not received when the
settings of indoor unit and remote control are different.
There is no relation between A setting/B setting and A
room/B room when connecting the piping and cables.
<Remote control A-B selection>
To separate using of remote control for each indoor unit in case of 2 air conditioners are installed nearly.
<Remote Control B Setup>
1. Press [RESET] button on the indoor unit to turn the air conditioner ON.
2. Point the remote control at the indoor unit.
3. Push and hold [CHECK] button on the Remote Control by the tip of the pencil. "00" will be shown on the display (Picture ).
1
4. Press [MODE] during pushing [CHECK]. "B" will show on the display and "00" will disappear and the air conditioner will turn OFF. The Remote Control B is memorized (Picture ).
2
OPERATION / RESET Button
Fig. 10-6-3
10-6-4. Auto restart setting
This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure.
Information
The product was shipped with Auto Restart function
in the off position. Turn it on as required.
<How to set the auto restart>
1. Press and hold the [RESET] button on the indoor unit 3 seconds to set the operation. (3 beep sound and OPERATION lamp blink 5 time/sec for 5 seconds)
2. Press and hold the [RESET] button on the indoor unit for 3 seconds to cancel the operation. (3 beep sound but OPERATION lamp does not blink)
In case of ON timer or OFF timer are set, AUTO
RESTART OPERATION dose not activate.
Page 74
11. HOW TO DIAGNOSE THE TROUBLE
FILE NO. SVM-19040
- 74 -
The pulse motor circuits are mounted to both indoor and outdoor units. Therefore, diagnose troubles according to the trouble diagnosis procedure as described below. (Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.)
Table 11-1
No.
1 2 3 4 5
Troubleshooting Procedure
First Confirmation Primary Judgment Judgment by Flashing LED of Indoor Unit Self-Diagnosis by Remote Controller Judgment of Trouble by Every Symptom
No.
6 7 8 9
10
Troubleshooting Procedure
How to Check Simply the Main Parts Troubleshooting How to Diagnose Trouble in Outdoor Unit How to Check Simply the Main Parts How to Simply Judge Whether Outdoor
Fan Motor is Good or Bad
K Precautions when handling the new inverter
CAUTION: 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 hand.
The new inverter will be incorporated starting with this unit.
K The control circuitry has an uninsulated construction.
RAS-05,07,10,13TAVG-EE
Fig. 11-1
Page 75
RAS-16,18TAVG-EE
FILE NO. SVM-19040
- 75 -
Fig. 11-2
CAUTION
A high voltage (equivalent to the supply voltage) is also energized to ground through the sensors, PMV and other low-voltage circuits. The sensor leads and other wires are covered with insulated tubes for protection. Nevertheless, care must be taken to ensure that these wires are not pinched.
Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power.
At times such as when the circuit board is to be replaced, place the circuit board assembly in a vertical position.
Laying the board flat on an electrically conductive object (such as the top panel of the air conditioner's outdoor unit) while a charge is still retained by the electrolytic capacitors of the inverter's main circuit may cause short-circuiting between the electrolytic capacitors and secondary circuit components and result in damage to the components.
Fig. 11-3 (RAS-05,07,10,13TAVG-EE)
Fig. 11-4 (RAS-16,18TAVG-EE)
Do NOT lay the circuit board assembly flat.
Page 76
K Precautions when inspecting the control section of the outdoor unit
FILE NO. SVM-19040
- 76 -
NOTE :
A large-capacity electrolytic capacitor is used in the outdoor unit controller (inverter). Therefore, if the power supply is turned off, charge (charging voltage DC280 to 380V) remains and discharging takes a lot of time. After turning off the power source, if touching the charging section before discharging, an electrical shock may be caused. Discharge the electrolytic capacitor completely by using soldering iron, etc.
< Discharging method >
1. Remove the inverter cover (plating) by opening four mounting claws.
2. As shown below, connect the discharge resistance (approx. 10040W) or plug of the soldering iron to
voltage betw capacitor
Inverter module cover
een + – terminals of the C07 (“WARNING ELECTRIC SHOCK” is indicated.) electrolytic
(760µF/400V) on P.C. board, and then perform discharging.
Plug of
Discharging position (Discharging period 10 seconds or more)
PCB
soldering iron
Spacer
Fig. 11-5 (RAS-05,07,10,13TAVG-EE)
Fig. 11-6 (RAS-16,18TAVG-EE)
Inverter cover
P. C. board (Soldered surface)
Page 77
11-1. First Confirmation
FILE NO. SVM-19040
- 77 -
11-1-1. Confirmation of Power Supply
Confirm that the power breaker operates (ON) normally.
11-1-2. Confirmation of Power Voltage
Confirm that power voltage is AC 220–230–240 ± 10%. If power voltage is not in this range, the unit may not operate normally.
11-1-3. Operation Which is not a Trouble (Program Operation)
For controlling the air conditioner, the program operations are built in the microcomputer as described in the following table.
If a claim is made for running operation, check whether or not it meets to the contents in the following table. When it does, we inform you that it is not trouble of equipment, but it is indispensable for controlling and main-
taining of air conditioner.
Table 11-1-1
No.
1
2
3
4
5
Operation of air conditioner
When power breaker is turned “ON”, the operation indicator (White) of the indoor unit flashes.
Compressor may not operate even if the room temperature is within range of compressor-ON.
In Dry and ECO mode, FAN (air flow) display does not change even though FAN (air flow select) button is operated.
Increasing of compressor motor speed stops approx. 30 seconds after operation started, and then compressor motor speed increases again approx. 30 seconds after.
In AUTO mode, the operation mode is changed.
Description
The OPERATION lamp of the indoor unit flashes when power source is turned on. If [ ] button is operated once, flashing stops. (Flashes also in power failure)
The compressor does not operate while compressor restart delay timer (3-minutes timer) operates. The same phenomenon is found after power source has been turned on because 3-minutes timer operates.
The air flow indication is fixed to [AUTO].
For smooth operation of the compressor, the compres­sor motor speed is restricted to Max. 41 rps for 2 min­utes, and Max.91 rps for 2 minutes to 3 minutes, respec­tively after the operation has started.
After selecting Cool or Heat mode, select an operation mode again if the compressor keeps stop status for 15 minutes.
6
In HEAT mode, the compressor motor speed does not increase up to the maxi­mum speed or decreases before the temperature arrives at the set temperature.
The compressor motor speed may decrease by high­temp. release control (Release protective operation by temp.-up of the indoor heat exchanger) or current release control.
Page 78
11-2. Primary Judgment
FILE NO. SVM-19040
- 78 -
To diagnose the troubles, use the following methods.
1) Judgment by flashing LED of indoor unit
2) Self-diagnosis by service check remote controller
3) Judgment of trouble by every symptom
Firstly use the method 1) for diagnosis. Then, use the method 2) or 3) to diagnose the details of troubles.
11-3. Judgment by Flashing LED of Indoor Unit
While the indoor unit monitors the operation status of the air conditioner, if the protective circuit operates, the contents of self-diagnosis are displayed with block on the indoor unit indication section.
Table 11-3-1
Indoor indication
lamp flashes.
Which lamp
does flash?
Item
A
B
C
D
E
Check
code
Block display Description for self-diagnosis
OPERATION Flashing display (1 Hz)
OPERATION Flashing display (5 Hz)
OPERATION TIMER (White) Flashing display (5 Hz)
OPERATION Flashing display (5 Hz)
OPERATION TIMER Flashing display (5 Hz)
Power failure (when power is ON)
Protective circuit operation for indoor P.C. board
Protective circuit operation for connecting cable and serial signal system
Protective circuit operation for outdoor P.C. board
Protective circuit operation for others (including compressor)
NOTES :
1. The contents of items B and C and a part of item E are displayed when air conditioner operates.
2. When item B and C, and item B and a part of item E occur concurrently, priority is given to the block of item B.
3. The check codes can be confirmed on the remote controller for servicing.
OPERATION
F
Normal Flash 1 Hz
Flash 2 Hz 2 times every 1 sec.
None
TIMER
Normal None
None
Flash
Release status display Nothing
Current release TD release
1 Hz
TC release
Page 79
11-4. Self-Diagnosis by Remote Controller (Check Code)
FILE NO. SVM-19040
- 79 -
1. If the lamps are indicated as shown B to E in Table 11-3-1, execute the self-diagnosis by the remote controller.
2. When the remote controller is set to the service mode, the indoor controller diagnoses the operation condi­tion and indicates the information of the self-diagnosis on the display of the remote controller with the check codes. If a fault is detected, all lamps on the indoor unit will flash at 5Hz and it will beep for 10 seconds (Beep, Beep, Beep ... ). The timer lamp usually flashes (5Hz) during self-diagnosis.
11-4-1. How to Use Remote Controller in Service Mode
1
Press [CHECK] button with a tip of pencil to set the remote controller to the service mode.
• “ ” is indicated on the display of the remote controller.
2
Press [TEMP ] or [TEMP ] button
If there is no fault with a code, the indoor unit will beep once (Beep) and the display of the remote controller will change as follows :
Alphanumeric characters are used for the check codes.
is 5. is 6. is A. is B. is C. is D.
• • •
• The TIMER indicator of the indoor unit flashes continuously. (5 times per 1 sec.)
• Check the unit with all 52 check codes ( to ) as shown in Table-11-4-1.
• Press [TEMP ] or [TEMP ] button to change the check code backward.
If there is a fault, the indoor unit will beep for 10 seconds (Beep, Beep, Beep...).
Note the check code on the display of the remote controller.
• 2-digits alphanumeric will be indicated on the display.
• All indicators on the indoor unit will flash. (5 times per 1 sec.)
3
Press [CLEAR] button. After service finish for clear
service code in memory.
"7F" is indicated on the display of the remote
control.
4
Press [ ] button to release the service mode.
The display of the remote controller returns to as it
was before service mode was engaged.
Fig. 11-4-1
Page 80
11-4-2 Caution at Servicing
FILE NO. SVM-19040
- 80 -
1. After using the service mode of remote controller finished, press the [ ] button to reset the remote controller to normal function.
2. After finished the diagnosis by the remote controller, turn OFF power supply and turn its ON again to reset the air
conditioner to normal operation. However, the check codes are not deleted from memory of the microcomputer.
3. After servicing finished, press [CLR] button of remote controller under service mode status to send code "7F" to the
indoor unit. The check code stored in memory is cleared.
Table 11-4-1
Block distinction Operation of diagnosis function
Check
code
Block
Indoor P.C. TA sensor ; The room Operation Flashes when 1. Check the sensor TA and connection.
board. temperature sensor is continues. error is detected. 2. In case of the sensor and its
Check
code
Cause of operation
short-Circuit or disconnection. connection is normal, check the
TC sensor ; The heat Operation Flashes when 1. Check the sensor TC and connection.
exchanger temperature continues. error is detected. 2. In case of the sensor and its
sensor of the indoor unit connection is normal, check the
is out of place, disconnection, P.C. board.
short-circuit or migration.
Air
conditioner
status
Display flashing
error
Action and Judgment
P.C. board.
Fan motor of the indoor unit All OFF Flashes when 1. Check the fan motor and connection.
is failure, lock-rotor, short- error is detected. 2. In case of the motor and its
circuit, disconnection, etc. connection is normal, check the
Or its circuit on P.C. board P.C. board.
has problem.
Other trouble on the indoor Depend on Depend on
P.C. board. cause of cause of
failure. failure.
1. Reset power supply.
2. Replace P.C. board.
Page 81
Block distinction Operation of diagnosis function
FILE NO. SVM-19040
- 81 -
Check
code
Block
Serial signal 1) Defective wiring of the Indoor unit Flashes when 1) to 3) The outdoor unit never
and connecting connecting cable or operates error is detected. operate.
cable. miss-wiring. continue. Flashing stop Check connecting cable and correct
Check
code
Cause of operation
2) Operation signal has not Outdoor unit and outdoor unit if defective wiring.
send from the indoor unit stop. start to operate Check 25A fuse of inverter P.C. board.
when operation start. when the return Check 3.15A fuse of inverter
3) Outdoor unit has not signal from the P.C. board.
send return signal to the outdoor unit is Check operation signal of the indoor
indoor unit when operation normal. unit by using diode. Measure voltage
started. at terminal block of the indoor unit
4) Return signal from the between No.2 and No.3 (or L2 and S)
outdoor unit is stop during If signal is varied 15-60V continuously,
operation. replace inverter P.C. board.
Some protector If signal is not varied, replace indoor
(hardware, if exist) of the P.C. board.
outdoor unit open 4) The outdoor unit abnormal stop at
circuit of signal. some time.
Signal circuit of indoor If the other check codes are found
P.C. board or outdoor concurrently, check them together.
P.C. board is failure Check protector (hardware) such
in some period. as Hi-Pressure switch,
Note : Operation signal of the indoor unit shall be measured in the sending period as
picture below.
Sending signal of the indoor unit when have not return
VDC
signal from the outdoor unit.
60
3 minutes Delay, start counting from power supply ON or remote OFF.
*
3 minutes stop
Voltage variation stop or have not voltage output.
**
conditioner
***
Air
status
Display flashing
error
Thermal-Relay, etc.
Check refrigerant amount or any
possibility case which may caused
high temperature or high pressure.
Check operation signal of the indoor
unit by using diode. Measure voltage
at terminal block of the indoor unit
between No.2 and No.3 (or L2 and S) If signal is varied 15-60V continuously, replace inverter P.C. board. If signal is not varied, replace indoor P.C. board.
Action and Judgment
15
Measured signal voltage by apply diode
0
* Signal send only 1 minute and stop. Because of return signal from outdoor unit has not received.
** Signal resend again after 3 minutes stop. And the signal will send continuously. ** * 1 minute after resending, the indoor unit display flashes error.
34 78
Time (Min)
Page 82
Block distinction Operation of diagnosis function
FILE NO. SVM-19040
- 82 -
Check
code
Block
Outdoor P.C. Current on inverter circuit All OFF Flashes after 1. Remove connecting lead wire of the
board is over limit in short time. error is detected compressor, and operate again.
Check
code
Cause of operation
Inverter P.C. board is 8 times*. 2. If outdoor fan does not operate or
failure, IGBT shortage, etc. operate but stop after some period,
Compressor current is replace the inverter P.C. board.
higher than limitation, 3. If outdoor fan operates normally,
lock rotor, etc. measure 3-Phase output of inverter
Compressor position-detect All OFF Flashes after 1. Remove connecting lead wire of the
circuit error or short-circuit error is detected compressor, and operate again.
between winding of 8 times*. 2. If outdoor fan does not operate or
compressor. operation but stop after some period,
Current-detect circuit of All OFF Flashes after Even if trying to operate again, all
inverter P.C. board error. error is detected operations stop, replace inverter
Air
conditioner
status
Display flashing
error
P.C. board (150-270VAC) at the
connecting lead wire of compressor.
4. If 3-Phase output is abnormal, replace
inverter P.C.Board.
5. If 3-Phase output is normal, replace
compressor. (lock rotor, etc.)
replace the inverter P.C. board.
3. If outdoor fan operates normally,
measure resistance of compressor
winding. If circuit is shortage, replace
the compressor.
4 times*. P.C. board.
Action and Judgment
TE or TS sensor; abnormal.
Out of place, disconnection,
shortage, or misconnection
(TE sensor is connected to TS
connector, TS sensor is
connected to TE sensor
connector)
TE sensor; Outdoor heat
exchanger temperature sensor
TS sensor; Suction pipe
temperature sensor
TD sensor ; Discharge pipe All OFF Flashes after 1. Check sensors TD and connection.
temperature sensor is error is detected 2. In case of the sensor and its
disconnection or shortage. 4 times*. connection is normal, check the
Outdoor fan failure or its All OFF Flashes after 1. Check the motor, measure winding
drive-circuit on the inverter error is detected resistance, shortage or lock rotor.
P.C. board failure. 8 times*. 2. Check the inverter P.C. board.
TO sensor ; The outdoor Operation Record error 1. Check sensors TO and connection.
temperature sensor is
disconnection or shortage.
All OFF Flashes after
error is detected
4 times*.
continues. after detected
4 times*. But does not flash display.
1. Check sensors, TE, TS connection. In
case of sensors and it’s connection is
normal, check the inverter P.C. board
2. Check 4way valve operation/position.
In case TE, TS detected temperature
relationship are different from normal
operation, “18” might be detected.
inverter P.C. board.
2. In case of the sensor and its
connection is normal, check the
inverter P.C. board.
Page 83
Block distinction Operation of diagnosis function
FILE NO. SVM-19040
- 83 -
Check
code
Block
Outdoor P.C.
board
Check
code
Cause of operation
Compressor drive output error. All OFF Flashes after 1. Check installation conditions such as
(Relation of voltage, current error is detected packed valve opening, refrigerant
and frequency is abnormal) 8 times*. amount and power supply (rate +
Overloading operation of both of operation and non operation
compressor caused by condition).
over-charge refrigerant, 2. Check P.M.V. by measure the
P.M.V. failure, etc. resistance of the coil and confirm its
Compressor failure (High operation (sound of initial
current). operation, etc.)
Air
conditioner
status
Display flashing
error
Action and Judgment
10%,
3. Observe any possibility cause which
may affect operation load of
compressor.
4. Operate again. If compressor
operation is failure when 20 seconds
passed (count time from operation
starting of compressor), replace
compressor.
* 4 or 8 times ; When first error is detected, error is count as 1 time, then once operation is stop and re-started.
After re-starting operation within 6 minutes, if same error is detected, error count is add (count become 2 times)
When error count comes 4, 8, 11 or 18 times, record error to check code. But after re-starting operation, if no error
is detected and air conditioner can operate more than 6 minutes, error count is cleared.
The others Return signal of the outdoor Indoor unit Flashes when 1. Check power supply (Rate +
(including unit has been sent when operates error is detected. 2. If the air conditioner repeat operates
compressor) operation start. But after continue. Flashing stop and stop with interval of approx. 10
that, signal is stop some time. Outdoor unit and outdoor unit to 40 minutes.
Instantaneous power stop. start to operate Check protector (hardware) such
failure. when the return as Hi-Pressure switch,
Some protector signal from the Thermal-Relay, etc.
(hardware) of the outdoor unit is Check refrigerant amount, packed
outdoor unit open normal. valve opening and any possibility
circuit of signal. cause which may affect high
Signal circuit of indoor temperature or high pressure.
P.C. board or outdoor 3. Check operation signal of the indoor
P.C. board is failure unit by using diode. Measure voltage
in some period. at terminal block of the indoor unit
between No.2 and No.3 (or L2 and S)
If signal is varied 15-60V continuously,
replace inverter P.C. board.
If signal is not varied, replace indoor
P.C. board.
10%)
Page 84
Block distinction Operation of diagnosis function
FILE NO. SVM-19040
- 84 -
Check
code
Block
The others
(including
compressor)
Check
code
Cause of operation
Compressor does not rotate. All OFF Flashes after 1. Remove connecting lead wire of the
Because of missed wiring, error is detected compressor, and operate again.
missed phase or shortage. 8 times*. 2. If outdoor fan does not operate or
Discharge temperature All OFF Flashes after 1. Check sensors TD.
o
exceeded 117
C.
Air
conditioner
status
Display
Action and Judgment
flashing error
operation but stop after some period,
replace the inverter P.C. board.
3. If outdoor fan operates normally,
measure 3-Phase output of inverter
P.C. board (150-270VAC) at the
connecting lead wire of compressor.
4. If 3-Phase output is abnormal, replace
inverter P.C.Board.
5. If 3-Phase output is normal, measure
resistance of compressor winding.
6. If winding is shortage, replace the
compressor.
error is detected 2. Check refrigerant amount.
4 times*. 3. Check P.M.V. by measure the
resistance of the coil and confirm its
operation (sound of initial
operation, etc.)
4. Observe any possibility cause which
may affect high temperature of
compressor.
Compressor is high current All OFF Flashes after 1. Check installation conditions such as
though operation Hz is error is detected packed valve opening, refrigerant
decreased to minimum limit. 8 times*. amount and power supply (rate +
Installation problem. both of operation and non operation
Instantaneous power condition).
failure. 2. Check P.M.V. by measure the
Refrigeration cycle resistance of the coil and confirm its
problem. operation (sound of initial
Compressor break down. operation, etc.)
Compressor failure (High
current).operation, etc.)
3. Observe any possibility cause which
may affect high current of compressor.
4. If 1, 2 and 3 are normal, replace
compressor.
10%,
Page 85
Block distinction Operation of diagnosis function
FILE NO. SVM-19040
- 85 -
Check
code
Block
The others
(including
compressor)
Check
code
Cause of operation
Return signal of the outdoor
unit has been sent when
operation start. But after
that, signal is stop some time.
Instantaneous power
failure.
Some protector
(hardware) of the
outdoor unit open circuit
of signal.
Signal circuit of indoor
P.C. board or outdoor
P.C. board is failure in
some period.
TE, TC high tmperature
TE for cooling operation
TC for heating operation.
Indoor unit Flashes when 1.
Air
conditioner
status
operates continue. Outdoor unit stop.
Display
flashing error
error is detected
11 times*.
Flashing stop
and outdoor unit start to operate when the return signal from the outdoor unit is normal.
Action and Judgment
. Check power supply (Rate +10%)
. If the air conditioner repeat operat
2.
and stop with interval of approx. 10
to 40 minutes.
Check protector (hardware) such
as Hi-Pressure switch,
Thermal-Relay, etc.
Check refrigerant amount, packed
valve opening and any possibility
cause which may affect high
temperature or high pressure.
3.
. Check operation signal of the indo
unit by using diode. Measure voltage
at terminal block of the indoor unit
between No.2 and No.3 (or L2 and S)
If signal is varied 15-60V continuously,
replace inverter P.C. board.
If signal is not varied, replace indoor
P.C. board.
4. Check and clean heat exchanger
area Indoor and Outdoor unit.
*
4, 8 or 11 times ; When first error is detected, error is count as 1 time, then once operation is stop and re-started.
After re-starting operation within 6 minutes, if same error is detected, error count is add (count become 2 times)
When error count comes 4, 8, 11 or 18 times, record error to check code. But after re-starting operation, if no error
is detected and air conditioner can operate more than 6 minutes, error count is cleared.
Page 86
11-5. Judgment of Trouble by Every Symptom
FILE NO. SVM-19040
- 86 -
11-5-1. Indoor Unit (Including Remote Controller)
(1) Power is not turned on (Does not operate entirely)
<Primary check>
1. Is the supply voltage normal?
2. Is the normal voltage provided to the outdoor unit?
3. Is the crossover cable connected properly?
4. Is the fuse (F01) blown?
(For 05, 07, 10, 13, 16K)
Turn off power
supply once, and 5
second later, turn it
on again.
NO
Is OPERATION
lamp blinking?
YES
Is fuse (F01)
of indoor control
board blown?
NO
Is it possible to
turn on power
supply by pressing
[ ]
button
on remote
control?
YES
YES
(DB01,C03,T01
and IC11)
are defective.
NO
Parts
transmission
remote control flash normally,
and is its signal
transmitted
properly?
Does
mark on
YES
NO
Does
fan motor
connector
between 1
3
and
short-circuit?
Remote control is
defective.
Refer to (4)
"Troubleshooting for
Remote Control.
YES
"
Operation
Check item
Conceivable principle
cause
Measure
Item by symptoms
Unit operates
normally.
Is voltage
(DC 12V or 5V)
NO
Is the
voltage
across C03
mesured
DC 310V~340V?
YES
Are DC 5V,
DC 12V
supplied
to main
P.C. board?
YES YES
B
e s
NO
NO
ure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of
damage of the motor
indicated on rear of indoor control board
normal?
Refer to
<Primary check>
or this problem
is one step short
of power P.C.
board block.
Turn off breaker
once and turn it
on again after
removing motor.
.
YES
Are DC 5V,
or DC 12V
supplied
to main
P.C. board?
NO
NO
Microcomputer
is defective.
Regulator IC
(IC14) or T01
are defective
Replace main
P.C. board.
Replace motor
.
Page 87
(2) Power is not turned on though Indoor P.C. board is replaced
FILE NO. SVM-19040
- 87 -
<Confirmation procedure>
Turn on power supply.
Does operation lamp flash?
YES YES
NO NO
Is it wired as shown in Figure below?
Return the wiring of the
power relay is returned to
the normal procedure.
To the paragraph of
"No Power turns on".
WP-039
Page 88
11-5. Judgment of Trouble by Every Symptom
FILE NO. SVM-19040
- 88 -
11-5-1. Indoor Unit (Including Remote Controller)
(1) Power is not turned on (Does not operate entirely)
<Primary check>
1. Is the supply voltage normal?
2. Is the normal voltage provided to the outdoor unit?
3. Is the crossover cable connected properly?
4. Is the fuse (F01) blown?
(For 18K)
Operation
Check Item
Considerable principle cause
of indoor control
YES
of indoor control
Turn off power supply once, and 5 second later, turn it on again.
NO
Is OPERATION indicator flashing?
Is fuse (F01)
board blown?
NO
Is fuse (F02)
board blown?
NO
YES
Is it possible to turn on
A/C by pushing
[ ] button
on remote controller?
YES YES
Unit operates normally.
YES
Does transmission mark
NO NO
on remote controller flash
normally,and is its signal
transmitted properly?
Point remote to digital
camera. Can see infrared
ray at sending LED
on camera monitor
when push [ ] button?
YES
NO
Measures
Item by symptoms
Remote controller is defective.
Refer to (5) “Troubleshooting for remote controller”.
Replace remote control
(DC5V, 12V and 15V)
indicated on rear of
• Be sure to disconnect the motor connector CN36 after shut off the power supply, or it will be a cause of damage of the motor.
Is voltage
indoor control
board nor mal?
NO
YES
Does connection
between PC Board
and reciver PCB
are connect properly?
NO
Reconnect housing
YES
Microcomputer
is defective.
Replace main P.C. board
Replace fan motor.
Page 89
(2) Power is not turned on though Indoor P.C. board is replaced
FILE NO. SVM-19040
- 89 -
<Confirmation procedure>
Turn on power supply.
Does operation lamp flash?
YES YES
NO NO
Is it wired as shown in Figure below?
Return the wiring of the
power relay is returned to
the normal procedure.
To the paragraph of
"No Power turns on".
CN28
WP-038
Page 90
(3) Only the indoor motor fan does not operate
FILE NO. SVM-19040
- 90 -
<Primary check> (For 05, 07, 10, 13, 16K)
1. Is it possible to detect the power supply voltage (AC220–240V) between Q and R on the terminal block?
2. Does the indoor fan motor operate in cooling operation?
(In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.)
Shut off the
power supply once.
Turn the power supply.
Does the fan stop in
no operating status?
YES
Start the operation
with low fan setting
in cool operation.
Does the fan rotate?
YES
Change the setting of
cooling to high fan.
Does the fan speed
become higher?
NO
NO
NO
Control P.C. board is defective.
Does AC 120 V
or higher voltage apply
to between red and black
lead of fan motor?
YES
Shut off the power supply.
Does the cross flow fan rotate normally?
YES
Turn on the power supply.
Operation
stops
Replace the P.C. board.
Does connecting
terminal, connecting
NO NO
NO
cable or power supply
cord completely?
Does not found the short
wire about connecting cable and power cord?
YES
Repair the
bearing of
the fan.
Motor control circuit failure
(IC03, Q39 and D01) or 12 V
Switching power supply failure.
YES
Normal
Is the rotation signal (DC+5 V
output between 2 (gray lead wire)
and 3 (brown lead wire) of the motor
connector (CN11) when rotating the
cross flow fan by hand in no operating
status? (1 pulse/one turn)
YES
Replace the control
P.C. board.
0 V)
NO
Replace the P.C. board.
Replace the fan motor.
Replace connecting the
cable (or power cord),
thermal fuse and
terminal block.
Page 91
(3) Only the indoor motor fan does not operate
FILE NO. SVM-19040
- 91 -
<Primary check> (For 18K)
1. Is it possible to detect the power supply voltage (AC220–240V) between Q and R on the terminal block?
2. Does the indoor fan motor operate in cooling operation? (In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.)
Turn off power supply once, and turn it on again.
Does fan motor
continue to operate?
NO
Is fuse (F02)
of indoor control
board blown?
NO
Does check
operation LED flash?
YES
Start to operate indoor unit in cooling operation at airflow level “LOW”.
Does indoor fan operate?
YES
YES
Is it possible to detect
DC 1V or more between
+ and
5
connector (CN36)
– of
3
YES
YES
Does check connecting
NO
cable or power supply
cord complely?
YES
Does check
5V at display unit?
YES
Is it possible to detect
NO
DC 311–340V between
1
+ and 3 – of motor
connector (CN36)?
YES
(Motor connection condition)
Is it possible to detect DC 15V
between 4 + and 3 – of
motor connector (CN36)?
YES
motor
?
NO
NO
NO
Reconnecting the in terconnection cable and terminal block
Does check 5V
at main P.C board?
Replace
display unit
NO
Turn off indoor unit and remove
NO
connector from motor.
Then push [ ] button
on remote controller to stop
flashing lamp on indoor unit.
YES
NO
Replace indoor
fan motor.
Change airflow level to “HIGH”.
Start to operate the
indoor unit in except
heating operation.
At this time, is it possible to
detect DC 1V or more between
5 + and 3 – of motor
connector (CN36)?
YES
BA
Is it possible to detect
DC 15V between
and 3 – of motor
connector(CN36)?
Turn off indoor unit and
NO
remove connector from motor. Then start to operate indoor unit with remote controller.
Start to operate the
indoor unit in except
heating operation.
At this time, is it possible
to detect DC 1V or more
between
of motor connector(CN36)? (Check this condition within 15 seconds after
5
starting unit.)
4
+
YES
+ and 3 –
YES
NO
NO
Replace main
P.C. board.
Page 92
A
FILE NO. SVM-19040
- 92 -
Is it possible to
change airflow level
to “HIGH”?
YES
Fan motor operates normally.
NO
B
Is it possible to
rotate cross-flow fan by
hand properly?
YES
Turn off indoor unit
and rotate cross-flow
fan by hand when the
unit is on standby.
At this time, is it possible to
detect DC 1V or more
between 5 + and 3 –
of motor connector
(CN36)?
YES
Does check display
on remote show high?
YES
Change the new PC
board. Does fan speed
change?
YES
NO
Does check cross-flow
NO
NO
NO
fan bearing normal
condition?
YES
NO
Replace remote
Replace motor
Replace bearing of cross-flow fan.
Replace indoor
fan motor.
Replace main
P.C. board.
Page 93
(For AC fan motor) (For 05, 07, 10, 13, 16K)
FILE NO. SVM-19040
- 93 -
<Inspection procedure>
1. Remove the front panel. (Remove 2 screws.)
2. Remove the cover of the fan motor lead wires. Check AC voltage with CN10 connector while the fan motor is rotating.
3.
NOTE :
• Using a tester, measure the resistance value of each winding coil.
• Use a thin test rod.
SJM-240-25 (RAS-05, 07, 10, 13) SJM-240-35 (RAS-16)
• Do not disconnect the connector while the fan motor is rotating.
• For P.C. board side, proceed to the item "Only indoor fan does not operate" of "Judgment of Trouble by Every Symptom".
WHI
5
CN10
BLK
3
RED
1
3
3
5
5
1
1
BRW
3
CN11
P.C. board
GRY
2
YEL
1
Position (P.C. board)
Between 3 (Black) - 1 (Red)
Between 3 (Black) - 5 (White)
Between 1 (Red) - 5 (White)
3
3
2
2
1
1
Resistance value (RAS-05, 07, 10, 13)
120.6
±
8.4
244.2
±
17.1
364.8
±
25.5
Resistance value (RAS-16)
115.6
±
8.1
146.2
261.8
± 10.2
±
18.3
Page 94
(4) Indoor fan motor automatically starts to rotate by turning on power supply
FILE NO. SVM-19040
- 94 -
[For DC fan motor] (For 18K)
<Cause>
The IC is built in the indoor fan motor. Therefore the P.C. board is also mounted to inside of the motor. If the P.C. board is soldered imperfectly or the IC is defective, the fan motor may automatically rotate by turning
on power supply.
<Inspection procedure>
1. Remove the front panel. (Remove 2 screws.)
2. Remove the cover of the fan motor lead wires.
3. Check DC voltage with CN36 connector while the fan motor is rotating.
NOTE :
• Do not disconnect the connector while the fan motor is rotating.
• Use a thin test rod.
Indoor fan starts rotating when power supply is turned on.
P.C. board
(Check output DC voltage of fan motor on P.C. board.)
Measure voltage between 3 (GND : BLACK)
and 5 (V line : YELLOW) of motor connector (CN36)
while indoor fan motor is rotating.
DC 1.0V or more
P.C. board is defective.
Replace P.C. board. Replace motor.
Under DC 1.0V
Motor is defective.
Yellow
Black
DC
CN36
6 (Blue) 5 (Yellow) 4 (White) 3 (Black) 2 – 1 (Red)
Page 95
(4) Troubleshooting for remote controller
FILE NO. SVM-19040
- 95 -
<Primary check>
Check that A or B selected on the main unit is matched with A or B selected on the remote controller.
Is there direct
sunlight on the
receptor of the air
conditioner?
YES
NO
Is there any
thyristor
fluorescent light
nearly?
YES
YES
NO NO
Push the [ ] button.
Does the transmission
indicator blink?
Is operation
possible when the
transmitter is moved
nearer to the infrared
signal receiver of the
air conditioner?
YES
Battery life
There is no beep from the indoor unit
The OPERATION lamp of the
air conditioner main unit does not light
NO
Reset the remote
control by take off
batteries
Push the [ ]
button
Avoid direct
sunlight.
NO
Keep the air
conditioner away
from thyristor
fluorescent light.
Is operation possible
when setting the
temporary switch of the
air conditioner main unit
to “TEST RUN” or
“TEMPORARY AUTO”?
YES
Can any signal tone be heard in a transistor radio when transmitting
within 5 cm distance
from the radio?
YES
P.C. board is failure.
Replace
P.C. board
NO
Replace the
batteries
NO
indicator light?
Normal
Dose the
transmission
YES
Is there any
beep and
operation?
YES
NO
Remote control
is failure.
Replace remote
control.
Page 96
11-5-2. Wiring Failure (Interconnecting and Serial Signal Wire)
FILE NO. SVM-19040
- 96 -
(1) Outdoor unit does not operate
1) Is the voltage between R and S of the indoor terminal block varied? Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow-
ing diagram.
NOTE:
• Measurement should be performed 2 minutes and 30 seconds after starting of the operation.
• Be sure to prepare a diode for judgment.
Terminal block at indoor side
Red
White
3
S5277G
2
S5277G or equivalent (G or J type) (Diode with rated voltage of 400V or more is acceptable.)
1
Terminal block
Tester
Normal time : Voltage swings between DC15 and 60V. ...................Inverter Assembly check (11-7-1.)
Abnormal time : Voltage does not vary.
(2) Outdoor unit stops in a little while after operation started
<Check procedure> Select phenomena described below.
1) The outdoor unit stops 10 to 20 minutes after operation started, and 10 minutes or more are required to restart the unit.
Gas circulation amount is down.
Measure gas pressure.
Thermo. operation of compressor
Gas shortage Gas leak Pipe clogging
2) If the unit stops once, it does not operate until the power will be turned on again.
To item of Outdoor unit does not operate.
3) The outdoor unit stops 10 minutes to 1 hour after operation started, and an alarm is displayed. (Discharge temp. error check code 03, 1E Sensor temp. error check code 02, 1C)
Gas leak P.M.V. is defective. Miswiring of connecting wires of indoor/outdoor units Clogging of pipe and coming-off of TC sensor
Refer to the chart in 11-6.
Page 97
11-6. How to Check Simple the Main Parts
FILE NO. SVM-19040
- 97 -
<Check procedure>
1C 1E
Gas leakage, disconnection of TS/TC sensors (Check code 02, 1C)
Valve drive check
Discharge temp. error, gas leakage (Check code 03, 1E)
Is coil of the pulse motor valve
(P.M.V.) correctly set?
YES
Is connecter of coil connected to inverter?
YES
from valve when the air conditioner starts the operation after turning off power
Is positioning sound of valve (sound hitting to stopper) heard
of the air conditioner once?
YES
Are temp. sensors of indoor/outdoor units correctly set to the holder?
NOTE :
The temperature sensors which are used to control pulse motor valve include indoor heat exchanger sensor (TC), outdoor heat exchanger temp. sensor (TE), outdoor suction temp. sensor (TS) and outdoor sensor (TO).
YES
NO
NO
NO
NO
Set it correctly.
Set it correctly.
Replace coil valve.
Set it correctly.
Remove TC sensor connector from the P.C. board in indoor unit. (Remove connector from the P.C. board.) Operate the air conditioner in COOL mode by TEMP button (“Beep” sound is heard if keeping pushed for 10 seconds.). The operation enters temporary operation mode which fixes opening degree of compressor speed. Check condensation at outlet of PMV, and then check operating pressure from the service port.
If there is condensation at outlet (1/4 inch=Ø6.35mm valve side),
Check the operating pressure from service port, and add gas if pressure is low.
Gas amount check and valve clogging check
Existence of condensation at outlet of P.M.V.
the valve is clogged.
YES
Replace valve.
Add gas.
Page 98
11-7. How to Diagnose Trouble in Outdoor Unit
FILE NO. SVM-19040
- 98 -
11-7-1. Summarized Inner Diagnosis of Inverter Assembly
(RAS-05, 07, 10, 13)
Table 11-7-1
Diagnosis/Process flowchart Item
Preparation
Remove connector of compressor.
Check 15A fuse
(Part No.F01).
OK
Check
terminal voltage
of electrolytic
capacitor.
OK
NG
Replace fuse.
Check
electrolytic
capacitor, diode
block (DB01),
etc.
NG
Check
electrolytic
capacitor, diode
(DB01),
etc.
Check
Check
Contents
Tu r n “OFF” the power supply breaker, and remove 3P connector which connects inverter and compressor.
• Check whether 15A fuse on the control board assembly is blown or not.(F01)
Summary
If fuse was blown, be sure to check the electrolytic capacitor and diode block. (DB01)
• Connect discharge
resistance (approx. 100Ω, 40W) or soldering iron (plug) between +, –
terminals of the electro­lytic capacitor (760µF) of
C07 (with printed WARNING ELECTRIC SHOCK) on P.C. board.
Discharging position (Discharging period 10 seconds or more)
Plug of soldering iron
Does outdoor
fan rotate?
YES
NG
Replace outdoor fan motor.
NO
Remove connector
CN31 of outdoor fan
motor, and using a
tester, check resistance
value between every
phases at motor side.
OK
BA
Operation
Measure-
ment
Check
Stop
Check
Measure-
ment
Turn on the power breaker, and operate the air condi­tioner in COOL mode by time shortening.
Measure terminal voltage of the electrolytic capacity.
760µF:450V
After operation, turn off the power breaker after 2 minutes 20 seconds passed, and discharge the electro­lytic capacitor by soldering iron. Check voltage between motor phases.
• Is not winding between
R‚ R-S
, or Q-S opened
Q
or short-circuited?
• Is not frame grounded with , or S?
Q, R
OK if 760µF → DC290 to 400V
Remove CN31 while pushing the part indicated by an by an arrow because CN31 is a connector with lock.
-
Resistance between
phases should be approx. 16 to 51
Should be 100M or
more.
Page 99
(RAS-16, 18)
FILE NO. SVM-19040
- 99 -
Diagnosis/Process flowchart Item
Preparation
Remove connector of compressor.
Check 25A fuse
(Part No.F01).
OK
Check
terminal voltage
of electrolytic
capacitor.
OK
NG
Replace fuse.
Check
electrolytic
capacitor, diode
block (DB01),
etc.
NG
Check
electrolytic
capacitor, diode
(DB01),
etc.
Check
Check
Contents
Tu r n “OFF” the power supply breaker, and remove 3P connector which connects inverter and compressor.
• Check whether 25A fuse
on the control board assembly is blown or not. (F01)
Summary
If fuse was blown, be sure to check the electrolytic capacitor and diode block. (DB01)
• Connect discharge
resistance (approx. 100Ω, 40W) or soldering iron (plug) between +, – terminals of the electro­lytic capacitor (760µF) of C07 (with printed
WARNING ELECTRIC SHOCK) on P.C. board.
Does outdoor
fan rotate?
YES
NG
Replace outdoor fan motor.
NO
Remove connector
CN31 of outdoor fan
motor, and using a
tester, check resistance
value between every
phases at motor side.
OK
BA
Operation
Measure-
ment
Check
Stop
Check
Measure-
ment
Turn on the power breaker, and operate the air condi­tioner in COOL mode by time shortening.
Measure terminal voltage of the electrolytic capacity.
760µF:400V x 2
After operation, turn off the power breaker after 2 minutes 20 seconds passed, and discharge the electro­lytic capacitor by soldering iron. Check voltage between motor phases.
• Is not winding between
R‚ R-S
, or Q-S opened
Q
or short-circuited?
• Is not frame grounded with , or S?
Q, R
OK if 760µF → DC280 to 380V
Remove CN31 whilepushing
the part indicated by an by an arrow because CN31 is a connector with lock.
-
Resistance between
phases should be approx. 16 to 51
Should be 100M or
more.
Page 100
Diagnosis/Process flowchart Item
FILE NO. SVM-19040
- 100 -
Contents
Summary
Check
compressor
winding
resistance.
OK
Replace
control board.
BA
Replace control board assembly.
NG
Replace
compressor.
Check
Operation
Check winding resistance between phases of compres­sor, and resistance between outdoor frames by using a tester.
• Is not grounded.
• Is not short-circuited between windings.
• Winding is not opened.
Remove connector CN31 of the outdoor fan motor, turn on the power supply breaker, and perform the operation. (Stops though activation is prompted.)
Check operation within 2 minutes 20 seconds after activation stopped.
OK if 20M or more
OK if about
 
3.19Ω for RAS-05,07TAVG-EE
3.36Ω for RAS-10,13TAVG-EE
1.57Ω for RAS-16,18TAVG-EE
(Check by a digital tester.)
11-8. How to Check Simply the Main Parts
11-8-1. How to Check the P.C. Board (Indoor Unit)
(1) Operating precautions
1) When removing the front panel or the P.C. board, be sure to shut off the power supply breaker.
2) When removing the P.C. board, hold the edge of the P.C. board and do not apply force to the parts.
3) When connecting or disconnecting the connectors on the P.C. board, hold the whole housing. Do not pull at the lead wire.
(2) Inspection procedures
1) When a P.C. board is judged to be defective, check for disconnection, burning, or discoloration of the copper foil pattern or this P.C. board.
2) The P.C. board consists of the following 2 parts
a. Main P.C. board part :
DC power supply circuit, Indoor fan motor control circuit, CPU and peripheral circuits, buzzer, and Driving circuit of louver.
b. Indication unit of infrared ray receiving infrared ray receiving circuit, LED :
To check defect of the P.C. board, follow the procedure described below.
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