Toshiba RAS-16PAVP-E, RAS-10PAVP-E, RAS-07PAVP-E, RAS-13PAVP-E, RAS-16PKVP-E User Manual

AIR-CONDITIONER (SPLIT TYPE)

SERVICE MANUAL

Model name:

FILE NO. A08-010

Indoor Unit

<High Wall, Heat Pump Type>

(Standard Type)

RAS-07PKVP-E
RAS-10PKVP-E
RAS-13PKVP-E
RAS-16PKVP-E
RAS-18PKVP-E

(North Europe Type)

RAS-07PKVP-ND
RAS-10PKVP-ND
RAS-13PKVP-ND
RAS-16PKVP-ND

Outdoor Unit

<Heat Pump Type>

(Standard Type)

RAS-07PAVP-E
RAS-10PAVP-E
RAS-13PAVP-E
RAS-16PAVP-E
RAS-18PAVP-E

(North Europe Type)

RAS-07PAVP-ND
RAS-10PAVP-ND
RAS-13PAVP-ND
RAS-16PAVP-ND

RAS-18PKVP-ND

RAS-18PAVP-ND

High Wall, Heat Pump Type

Service Manual

Contents

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 REFRIGERANT R410A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3 CONSTRUCTION VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5 SPECIFICATIONS OF ELECTRICAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6 REFRIGERANT CYCLE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7 CONTROL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8 OPERATION DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

8-1. Outline of Air Conditioner Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

8-1-1. Role of Indoor Unit Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

8-1-2. Role of outdoor unit controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

8-1-3. Contents of Operation Command Signal (Serial Signal) . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8-2. Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8-2-1. Operation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8-2-2. Cooling/Heating Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

8-2-3. AUTO Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

8-2-4. DRY Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8-3. Indoor Fan Motor Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8-3-1. In Cooling Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8-3-2. In Heating Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8-4. Outdoor Fan Motor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8-5. Capacity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8-6. Current Release Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8-7. Release Protective control by Temperature of Indoor Heat Exchanger . . . . . . . . . . . . . . . . . . . . . 39

8-7-1. In Cooling/Dry Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8-7-2. In heating operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8-8. Defrost Control (Only in Heating Operation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8-8-1. Defrost Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8-8-2. Finish of Defrost Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8-8-3. Returning from defrost operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8-9. Louver Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8-9-1. Louver Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8-9-2. Air Direction Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8-9-3. Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8-10. SLEEP MODE Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

2

High Wall, Heat Pump Type

8-10-1. Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8-10-2. Heating Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

8-11. Temporary Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

8-12. Air Purifying Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8-12-1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8-12-2. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8-12-3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

8-13. Discharge Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

8-13-1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

8-13-2. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

8-14. Pulse Motor Valve (PMV) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8-15. Clean Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8-15-1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8-15-2. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

8-15-3. Setting the Clean Operation Cancel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8-15-4. Setting the Clean Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8-16. Select Switch on Remote Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Service Manual

8-16-1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8-16-2. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8-16-3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8-16-4. Setting the Remote Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8-17. Set Temperature Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8-17-1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8-17-2. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8-18. Outdoor Quiet Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8-18-1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8-18-2. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8-18-3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8-19. 8°C HEAT Operation (-ND Model Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8-19-1. Start 8°C HEAT Operation When the Air Conditioner is Stopped . . . . . . . . . . . . . . . . . . . 50

8-19-2. Start 8°C HEAT Operation When the Air Conditioner is Operating . . . . . . . . . . . . . . . . . . 50

8-19-3. Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8-19-4. Indoor Fan Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

8-19-5. Compressor Speed Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8-20. Cord Heater Control (-ND Model Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8-20-1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8-20-2. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8-21. Auto Restart Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8-21-1. Setting the Auto Restart Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8-21-2. Cancelling the Auto Restart Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8-21-3. Power Failure During Timer Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8-22. Remote Controller and Its Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3

High Wall, Heat Pump Type

8-22-1. Parts Name of Remote Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

8-22-2. Name and Functions of Indications on Remote Controller. . . . . . . . . . . . . . . . . . . . . . . . . 55

8-23. Hi POWER Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8-23-1. In Automatic Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8-23-2. In Cooling Operation (Manual) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8-23-3. In Heating operation (Manual) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Service Manual

9 INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

10 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

11 REPLACING THE MAIN PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

12 EXPLODED VIEWS AND PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

4

High Wall, Heat Pump Type

Service Manual

SAFETY PRECAUTIONS

The important contents concerned to the safety are described on the product itself and on this Service Manual.
Please read this Service Manual after understanding the described items thoroughly in the following contents
(Indications/Illustrated marks), and keep them.

[Explanation of indications]

Indication Explanation

DANGER

WARNING

CAUTION

* Property damage : Enlarged damage concerned to property, furniture, and domestic animal/pet

Indicates contents assumed that an imminent danger causing a death or serious injury of the
repair engineers and the third parties when an incorrect work has been executed.

Indicates possibilities assumed that a danger causing a death or serious injury of the repair
engineers, the third parties, and the users due to troubles of the product after work when an
incorrect work has been executed.

Indicates contents assumed that an injury or property damage (*) may be caused on the repair
engineers, the third parties, and the users due to troubles of the product after work when an
incorrect work has been executed.

[Explanation of illustrated marks]

Mark Explanation

Indicates prohibited items (Forbidden items to do)
The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do)
The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (including danger/warning)
The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

For general public use

Power supply cord of outdoor unit shall be 1.5 mm ² (H07RN-F or 60245IEC66) polychloroprene sheathed flexible
cord.

• Read this “SAFETY PRECAUTIONS” carefully before servicing.

• The precautions described below include the important items regarding safety. Observe them without fail.

• After the servicing work, perform a trial operation to check for any problem.

• Turn off the main power supply switch (or breaker) before the unit maintenance.

CAUTION

New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE
LAYER.

R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure
of R410A refrigerant is approx. 1.6 times of refrigerant R22. Accompanied with the adoption of the new refrigerant, the
refrigeration machine oil has also been changed. Therefore, during installation work, be sure that water, dust, former
refrigerant, or refrigeration machine oil does not enter into the new type refrigerant R410A air conditioner circuit.
To prevent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging port on main unit and
installation tools are different from those used for the conventional refrigerant units.
Accordingly, special tools are required for the new refrigerant (R410A) units. For connecting pipes, use new and clean piping
materials with high pressure fittings made for R410A only, so that water and/or dust does not enter. Moreover, do not use the
existing piping because there are some problems with pressure fittings and possible impurities in existing piping.

5

High Wall, Heat Pump Type

Service Manual

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY

A switch or circuit breaker that can disconnect all poles must be included in the fixed wiring.
Be sure to use an approved circuit breaker or switch.

DANGER

• ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL TO INSTALL/ MAINTAIN THE AIR
CONDITIONER.
INAPPROPRIATE SERVICING MAY RESULT IN WATER LEAKAGE, ELECTRIC SHOCK OR FIRE.

• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER
SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

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 INCORRECTLY CONNECTED,
ELECTRIC PARTS MAY BE DAMAGED.

• CHECK THAT THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE SERVICE AND INSTALLATION.
FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

• DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS. FAILURE TO FOLLOW THIS
INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.

• TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL
AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTORS, FURNACE, STOVES,
ETC.

• WHEN MOVING THE AIR-CONDITIONER FOR INSTALLATION IN ANOTHER PLACE, BE VERY CAREFUL NOT TO
ALLOW THE SPECIFIED REFRIGERANT (R410A) TO BECOME MIXED WITH ANY OTHER GASEOUS BODY INTO THE
REFRIGERATION CIRCUIT. IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE GAS PRESSURE IN
THE REFRIGERATION CIRCUIT WILL BECOME ABNORMALLY HIGH AND IT MAY RESULT IN THE PIPE BURSTING
AND POSSIBLE PERSONNEL INJURIES.

• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE SERVICE WORK AND THE
INSTALLATION WORK, IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED,
SUCH AS BY FIRE, GENERATION OF POISONOUS GAS MAY RESULT.

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.

6

High Wall, Heat Pump Type

Service Manual

CAUTION

• Exposure of unit to water or other moisture before installation may result in an electrical short.
Do not store in a wet basement or expose to rain or water.

• Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level
of the unit or where noise or discharged air might disturb neighbors.

• To avoid personal injury, be careful when handling parts with sharp edges.

• Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.

For Reference: RAS-∗∗ PAVP-E model

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.
(RAS-

∗∗ PAVP-ND model has a heater on the bottom plate of the outdoor unit.)

7

High Wall, Heat Pump Type

Service Manual

1 SPECIFICATIONS

1-1. Specifications

RAS-07PKVP-E/RAS-10PKVP-E/RAS-13PKVP-E, RAS-07PAVP-E/RAS-10PAVP-E/RAS-13PAVP-E
RAS-07PKVP-ND/RAS-10PKVP-ND/RAS-13PKVP-ND, RAS-07PAVP-ND/RAS-10PAVP-ND/

RAS-13PAVP-ND

Unit model

Cooling capacity (kW) 2.0 2.5 3.5

Cooling capacity range (kW) 0.3-3.0 0.3-3.5 0.3-4.5

Heating capacity (kW) 2.5 3.0 4.0

Heating capacity range (kW) 0.3-5.0 0.3-5.8 0.3-6.1

Power supply 1 Ph/50Hz/220–240 V, 1 Ph/60Hz/220-230 V

Electric
characteristics

COP (Cooling/Heating) 5.63/5.68 5.26/5.36 4.55/4.76

Operating
noise

Indoor unit

Outdoor unit

Piping
connection

Refrigerant

Wiring
connection

Usable temperature
range

Accessory

• The specifications may be subject to change without notice for purpose of improvement.

Indoor RAS-07PKVP-E(-ND) RAS-10PKVP-E(-ND) RAS-13PKVP-E(-ND)

Outdoor RAS-07PAVP-E(-ND) RAS-10PAVP-E(-ND) RAS-13PAVP-E(-ND)

Indoor

Outdoor

Starting current(220/230/240V) (A) 2.56/2.45/2.34 2.77/2.65/2.54 4.01/3.84/3.68

Indoor

Outdoor (Cooling/Heating) (dB-A) 46/46 48/48 50/50

Unit model RAS-07PKVP-E (-ND) RAS-10PKVP-E (-ND) RAS-13PKVP-E (-ND)

Dimension

Net weight (kg) 12

Fan motor output (W) 30

Air flow rate (Cooling/Heating)

Unit model RAS-07PAVP-E (-ND) RAS-10PAVP-E (-ND) RAS-13PAVP-E (-ND)

Dimension

Net weight (kg) 39 40

Compressor

Fan motor output (W) 43

Air flow rate (Cooling/Heating)

Type Flare connection

Indoor unit

Outdoor unit

Maximum length (m) 20

Maximum chargeless length (m) 15

Maximum height difference (m) 10

Name of refrigerant R410A

Weight (kg) 1.12 1.15

Power cord 3 Wires : includes earth line (Outdoor)

Connecting cable 4 Wires : includes earth line

Indoor (Cooling/Heating) (°C) 21–32/0–28

Outdoor (Cooling/Heating) (°C) –10–46/–15–24

Indoor unit

Outdoor unit

Operation mode Cooling Heating Cooling Heating Cooling Heating

Running current (220/230/240V)

Power consumption (W) 25 30

Power factor (220/230/240V) (%) 54/54/55 57

Operation mode Cooling Heating Cooling Heating Cooling Heating

Running current (220/230/240V)

Power consumption (220/230/240V)

Power factor (%)81809395 98

High (Cooling/Heating) (dB-A) 42/42 43/43 45/45

Medium (Cooling/Heating) (dB-A) 34/34 35/35 36/36

Low (Cooling/Heating) (dB-A) 26/26 27/27

Height (mm) 295

Width (mm) 790

Depth (mm) 242

Height (mm) 550

Width (mm) 780

Depth (mm) 290

Motor output (W) 750

Type Twin rotary type (Variable Cylinder Management)

Model DA 111A1 FD -21 F

Liquid side Ø6.35

Gas side Ø9.52

Liquid side Ø6.35

Gas side Ø9.52

Installation plate 1

Wireless remote controller 1

Batteries 2

Remote controller holder 1

Mounting screw 7 (Ø4 × 25L)

Remote controller holder mounting screw

Installation manual 1

Owner’s manual 1

Drain nipple 1

Water-proof rubber cap 2

(A) 0.21/0.20/0.19 0.24/0.23/0.22

(A) 1.86/1.78/1.70 2.35/2.25/2.15 2.19/2.10/2.01 2.56/2.45/2.35 3.44/3.29/3.15 3.77/3.61/3.46

(W) 330 415 450 535 740 810

(m³/min.)

(m³/min.)

10.2/10.8 10.4/11.1 11.6/11.6

27.7/25.5 30.0/27.7 37.2/34.8

2 (Ø3.1 × 16L)

8

High Wall, Heat Pump Type

RAS-16PKVP-E/RAS-18PKVP-E, RAS-16PAVP-E/RAS-18PAVP-E
RAS-16PKVP-ND/RAS-18PKVP-ND, RAS-16PAVP-ND/RAS-18PAVP-ND

Unit model

Cooling capacity (kW) 4.5 5.0

Cooling capacity range (kW) 0.3-5.0 0.3-5.5

Heating capacity (kW) 5.5 6.0

Heating capacity range (kW) 0.3-6.5 0.3-6.7

Power supply 1 Ph/50Hz/220–240 V, 1 Ph/60Hz/220-230 V

Electric
characteristics

COP (Cooling/Heating) 3.69/4.10 3.36/3.90

Operating
noise

Indoor unit

Outdoor unit

Piping
connection

Refrigerant

Wiring
connection

Usable temperature
range

Accessory

• The specifications may be subject to change without notice for purpose of improvement.

Indoor RAS-16PKVP-E(-ND) RAS-18PKVP-E(-ND)

Outdoor RAS-16PAVP-E(-ND) RAS-18PAVP-E(-ND)

Operation mode Cooling Heating Cooling Heating

Indoor

Outdoor

Starting current(220/230/240V) (A) 6.24/5.97/5.72 7.16/6.85/6.57

Indoor

Outdoor (Cooling/Heating) (dB-A) 50/50 52/52

Unit model RAS-16PKVP-E (-ND) RAS-18PKVP-E (-ND)

Dimension

Net weight (kg) 12

Fan motor output (W) 30

Air flow rate (Cooling/Heating)

Unit model RAS-16PAVP-E (-ND) RAS-18PAVP-E (-ND)

Dimension

Net weight (kg) 40

Compressor

Fan motor output (W) 43

Air flow rate (Cooling/Heating)

Type Flare connection

Indoor unit

Outdoor unit

Maximum length (m) 20

Maximum chargeless length (m) 15

Maximum height difference (m) 10

Name of refrigerant R410A

Weight (kg) 1. 15

Power cord 3 Wires : includes earth line (Outdoor)

Connecting cable 4 Wires : includes earth line

Indoor (Cooling/Heating) (°C) 21–32/0–28

Outdoor (Cooling/Heating) (°C) –10–46/–15–24

Indoor unit

Outdoor unit

Running current(220/230/240V)

Power consumption (W) 35 40

Power factor (220/230/240V) (%) 59/59/58 61/60/60

Operation mode Cooling Heating Cooling Heating

Running current (220/230/240V)

Power consumption (W) 1195 1305 1450 1500

Power factor (%) 98 99

High (Cooling/Heating) (dB-A) 47/47 49/49

Medium (Cooling/Heating) (dB-A) 38/38 41/41

Low (Cooling/Heating) (dB-A) 30/30 31/31

Height (mm) 295

Width (mm) 790

Depth (mm) 242

Height (mm) 550

Width (mm) 780

Depth (mm) 290

Motor output (W) 750

Type Twin rotary type (Variable Cylinder Management)

Model DA111A1FD-21F

Liquid side Ø6.35

Gas side Ø12.7

Liquid side Ø6.35

Gas side Ø12.7

Installation plate 1

Wireless remote controller 1

Batteries 2

Remote controller holder 1

Mounting screw 7 (Ø4 × 25L)

Remote controller holder mounting screw

Installation manual 1

Owner’s manual 1

Drain nipple 1

Water-proof rubber cap 2

(A) 0.27/0.26/0.25 0.30/0.29/0.28

(A) 5.54/5.30/5.08 5.97/5.71/5.47 6.68/6.39/6.12 6.86/6.56/6.29

(m³/min.)

(m³/min.)

12.4/12.4 13.4/13.4

37.2/34.8 39.5/37.2

2 (Ø3.1 × 16L)

Service Manual

9

High Wall, Heat Pump Type

0

0

0

0

0

0

1-2. Operation Characteristic Curve

RAS-07PKVP-E(-ND)
Cooling Heating

9

Conditions

Indoor: DB27°C/WB19°C

8

Outdoor: DB35°C

7

Airflow: High
Pipe length: 5m

6

5

4

Current (A)

3

2

1

0

2 cylinder
operation

10 20 30 40 50 60 70 8009011

Compressor speed (rps)

220V
230V
240V

220V
230V
240V

1 cylinder
operation

100

9

8

7

6

5

4

Current (A)

3

2

1

0

Service Manual

Conditions

Indoor: DB20°C
Outdoor: DB7°C/WB6°C
Airflow: High
Pipe length: 5m

2 cylinder
operation

220V
230V
240V

1 cylinder
operation

10 20 30 40 50 60 70 8009011

Compressor speed (rps)

220V
230V
240V

100

RAS-10PKVP-E(-ND)
Cooling Heating

9

Conditions

Indoor: DB27°C/WB19°C

8

Outdoor: DB35°C

7

Airflow: High
Pipe length: 5m

6

5

4

Current (A)

3

2

1

0

2 cylinder
operation

1 cylinder
operation

10 20 30 40 50 60 70 8009011

Compressor speed (rps)

220V
230V
240V

220V
230V
240V

Current (A)

100

RAS-13PKVP-E(-ND)
Cooling Heating

9

Conditions

Indoor: DB27°C/WB19°C

8

Outdoor: DB35°C

7

Airflow: High
Pipe length: 5m

6

5

220V
230V
240V

9

Conditions

Indoor: DB20°C

8

Outdoor: DB7°C/WB6°C

7

Airflow: High
Pipe length: 5m

6

5

4

3

2

1

0

9

8

7

6

5

2 cylinder
operation

220V
230V
240V

1 cylinder
operation

10 20 30 40 50 60 70 8009011

Compressor speed (rps)

Conditions

Indoor: DB20°C
Outdoor: DB7°C/WB6°C
Airflow: High
Pipe length: 5m

220V
230V
240V

100

220V
230V
240V

4

Current (A)

3

2

1

0

2 cylinder
operation

220V
230V
240V

1 cylinder
operation

10 20 30 40 50 60 70 8009011

Compressor speed (rps)

100

4

Current (A)

3

2

1

0

10

2 cylinder
operation

220V
230V
240V

1 cylinder
operation

10 20 30 40 50 60 70 8009011

Compressor speed (rps)

100

High Wall, Heat Pump Type

0

0

RAS-16PKVP-E(-ND)
Cooling Heating

9

Conditions

Indoor: DB27°C/WB19°C

8

Outdoor: DB35°C

7

Airflow: High
Pipe length: 5m

6

220V
230V
240V

9

Conditions

Indoor: DB20°C

8

Outdoor: DB7°C/WB6°C

7

Airflow: High
Pipe length: 5m

6

Service Manual

220V
230V
240V

5

4

Current (A)

3

2

1

0

2 cylinder
operation

220V
230V
240V

1 cylinder
operation

10 20 30 40 50 60 70 8009011

Compressor speed (rps)

100

Current (A)

RAS-18PKVP-E(-ND)
Cooling Heating

9

Conditions

Indoor: DB27°C/WB19°C

8

Outdoor: DB35°C

7

Airflow: High
Pipe length: 5m

6

5

4

Current (A)

3

2

1

0

2 cylinder
operation

220V
230V
240V

1 cylinder
operation

10 20 30 40 50 60 70 8009011

Compressor speed (rps)

220V
230V
240V

Current (A)

100

5

4

3

2

1

0

9

8

7

6

5

4

3

2

1

0

2 cylinder
operation

220V
230V
240V

1 cylinder
operation

10 20 30 40 50 60 70 80090110100

Compressor speed (rps)

Conditions

Indoor: DB20°C
Outdoor: DB7°C/WB6°C
Airflow: High
Pipe length: 5m

2 cylinder
operation

220V
230V
240V

1 cylinder
operation

10 20 30 40 50 60 70 80090110100

Compressor speed (rps)

220V
230V
240V

11

High Wall, Heat Pump Type

Service Manual

1-3. Capacity Variation Ratio According to Temperature

RAS-07PKVP-E(-ND), RAS-10PKVP-E(-ND), RAS-13PKVP-E(-ND)
Cooling Heating

120

120

110

100

90

80

70

Capacity ratio (%)

Conditions

60

Indoor: DB27°C/WB19°C
Indoor air flow: High

50

Pipe length: 5m

40

25 30 35 40 4520

Outdoor temperature (°C)

110

100

Capacity ratio (%)

RAS-16PKVP-E(-ND)
Cooling Heating

120

110

100

90

80

70

Capacity ratio (%)

Conditions

60

Indoor: DB27°C/WB19°C
Indoor air flow: High

50

Pipe length: 5m

40

25 30 35 40 4520

Outdoor temperature (°C)

120

110

100

Capacity ratio (%)

90

80

70

60

50

40

90

80

70

60

50

40

Conditions

Indoor: DB20°C
Indoor air flow: High
Pipe length: 5m

-10 -5 0 5 10-15
Outdoor temperature (°C)

Conditions

Indoor: DB20°C
Indoor air flow: High
Pipe length: 5m

-10 -5 0 5 10-15
Outdoor temperature (°C)

RAS-18PKVP-E(-ND)
Cooling Heating

120

110

100

90

80

70

Capacity ratio (%)

Conditions

60

Indoor: DB27°C/WB19°C
Indoor air flow: High

50

Pipe length: 5m

40

25 30 35 40 4520

Outdoor temperature (°C)

120

110

100

Capacity ratio (%)

12

90

80

70

60

50

40

Conditions

Indoor: DB20°C
Indoor air flow: High
Pipe length: 5m

-10 -5 0 5 10-15
Outdoor temperature (°C)

High Wall, Heat Pump Type

Service Manual

2 REFRIGERANT R410A

This air conditioner adopts the new refrigerant HFC (R410A) which does not damage the ozone layer.
The working pressure of the new refrigerant R410A is 1.6 times higher than conventional refrigerant (R22). The

refrigerating oil is also changed in accordance with change of refrigerant, so be careful that water, dust, and
existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the air conditioner using the new
refrigerant during installation work or servicing time.
The next section describes the precautions for air conditioner using the new refrigerant. Conforming to contents of
the next section together with the general cautions included in this manual, perform the correct and safe work.

2-1. Safety During Installation/Servicing

As R410A’s pressure is about 1.6 times higher than that of R22, improper installation/servicing may cause a
serious trouble. By using tools and materials exclusive for R410A, it is necessary to carry out installation/servicing
safely while taking the following precautions into consideration.

• Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A.
If other refrigerant than R410A is mixed, pressure in the refrigeration cycle becomes abnormally high, and it may
cause personal injury, etc. by a rupture.

• Confirm the used refrigerant name, and use tools and materials exclusive for the refrigerant R410A.
The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air conditioner using
R410A as refrigerant. To prevent mischarging, the diameter of the service port differs from that of R22.

• 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.

• When installing or removing an air conditioner, do not allow air or moisture to remain in the refrigeration cycle.
Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury
may be caused.

• 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.

• 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.

• 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.

• 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.

13

High Wall, Heat Pump Type

Service Manual

2-2. Refrigerant Piping Installation

2-2-1. Piping Materials and Joints Used

For the refrigerant piping installation, copper pipes and joints are mainly used.
Copper pipes and joints suitable for the refrigerant must be chosen and installed.
Furthermore, it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by

contaminants.

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 discoloured portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube may become blocked with contaminants.
As an air conditioner using R410A incurs pressure higher than when using R22, it is necessary to choose adequate

materials.
Thicknesses of copper pipes used with R410A are as shown in Table 2-2-1. Never use copper pipes thinner than

0.8 mm even when it is available on the market.

Table 2-2-1 Thicknesses of annealed copper pipes

Thickness (mm)

Nominal diameter Outer diameter (mm) R410A R22

1/4 6.35 0.80 0.80

3/8 9.52 0.80 0.80

1/2 12.70 0.80 0.80

5/8 15.88 1.00 1.00

Joints

For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants.

• Flare Joints
Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm.
In such a case, socket joints can be used.
Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 2-2-3 to 2-2-6 below.

• Socket Joints
Socket joints are such that they are brazed for connections, and used mainly for thick pipings whose diameter is
larger than 20 mm.
Thicknesses of socket joints are as shown in Table 2-2-2.

Table 2-2-2 Minimum thicknesses of socket joints

Nominal diameter

1/4 6.35 0.50

3/8 9.52 0.60

1/2 12.70 0.70

5/8 15.88 0.80

Reference outer diameter of

copper pipe jointed (mm)

Minimum joint thickness

(mm)

2-2-2. Processing of Piping Materials

When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not enter
the pipe interior, that no other oil 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.

14

High Wall, Heat Pump Type

Flare processing procedures and precautions

1) Cutting the Pipe
By means of a pipe cutter, slowly cut the pipe so that it is not deformed.

2) 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.

3) Insertion of Flare Nut

4) Flare Processing
Make certain that a clamp bar and copper pipe have been
cleaned.
By means of the clamp bar, perform the flare processing
correctly.
Use either a flare tool for R410A or conventional flare tool.
Flare processing dimensions differ according to the type of flare
tool. When using a conventional flare tool, be sure to secure
“dimension A” by using a gauge for size adjustment.

Table 2-2-3 Dimensions related to flare processing for R410A

Nominal

diameter

1/4 6.35 0.8 0 to 0.5 1.0 to 1.5 1.5 to 2.0

3/8 9.52 0.8 0 to 0.5 1.0 to 1.5 1.5 to 2.0

1/2 12.70 0.8 0 to 0.5 1.0 to 1.5 2.0 to 2.5

5/8 15.88 1.0 0 to 0.5 1.0 to 1.5 2.0 to 2.5

Outer

diameter

(mm)

Thickness

(mm)

Flare tool for R410A

clutch type

Service Manual

Fig. 2-2-1
Flare processing dimensions

ØD

A

A (mm)

Conventional flare tool

Clutch type Wing nut type

Table 2-2-4 Dimensions related to flare processing for R22

Nominal

diameter

1/4 6.35 0.8 0 to 0.5 0.5 to 1.0 1.0 to 1.5

3/8 9.52 0.8 0 to 0.5 0.5 to 1.0 1.0 to 1.5

1/2 12.70 0.8 0 to 0.5 0.5 to 1.0 1.5 to 2.0

5/8 15.88 1.0 0 to 0.5 0.5 to 1.0 1.5 to 2.0

Outer

diameter

(mm)

Thickness

(mm)

Flare tool for R22

clutch type

Table 2-2-5 Flare and flare nut dimensions for R410A

Nominal

diameter

1/4 6.35 0.8 9.1 9.2 6.5 13 17

3/8 9.52 0.8 13.2 13.5 9.7 20 22

1/2 12.70 0.8 16.6 16.0 12.9 23 26

5/8 15.88 1.0 19.7 19.0 16.0 25 29

Outer diameter

(mm)

Thickness

(mm)

ABCD

A (mm)

Clutch type Wing nut type

Dimension (mm)

Conventional flare tool

Flare nut width

(mm)

15

High Wall, Heat Pump Type

Table 2-2-6 Flare and flare nut dimensions for R22

Nominal

diameter

1/4 6.35 0.8 9.0 9.2 6.5 13 17

3/8 9.52 0.8 13.0 13.5 9.7 20 22

1/2 12.70 0.8 16.2 16.0 12.9 20 24

5/8 15.88 1.0 19.4 19.0 16.0 23 27

3/4 19.05 1.0 23.3 24.0 19.2 34 36

Outer diameter

(mm)

Thickness

(mm)

ABCD

Dimension (mm)

Fig. 2-2-2 Relations between flare nut and flare seal surface

45° to 46°

Service Manual

Flare nut width

(mm)

B A

43° to 45°

D

C

Flare Connecting Procedures and Precautions

1) Make sure that the flare and union portions do not have any scar or dust, etc.

2) Correctly align the processed flare surface with the union axis.

3) Tighten the flare with designated torque by means of a torque wrench.
The tightening torque for R410A is the same as that for conventional R22.
Incidentally, when the torque is weak, the gas leakage may occur.
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 2-2-7 Tightening torque of flare for R410A [Reference values]

Nominal

diameter

1/4 6.35 14 to 18 (140 to 180) 16 (160), 18 (180)

3/8 9.52 33 to 42 (330 to 420) 42 (420)

1/2 12.70 50 to 62 (500 to 620) 55 (550)

5/8 15.88 63 to 77 (630 to 770) 65 (650)

Outer diameter

(mm)

Tightening torque

N•m (kgf•cm)

Tightening torque of torque

wrenches available on the market

N•m (kgf•cm)

16

High Wall, Heat Pump Type

Service Manual

2-3. Tools

2-3-1. Required Tools

The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R410A is changed
to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and
opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.

The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge, clogging
of capillary, etc. Accordingly, the tools to be used are classified into the following three types.

• Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))

• Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)

• Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)

Tools whose specifications are changed for R410A and their interchangeability

air-water heat pump installation

No. Used tool Usage

1 Flare tool Pipe flaring Yes *(Note 1) Yes

2

3

4 Gauge manifold

5 Charge hose

6 Vacuum pump adapter Vacuum evacuating Yes No Yes

7

8 Refrigerant cylinder Refrigerant charge Yes No No

9 Leakage detector Gas leakage check Yes No Yes

10 Charging cylinder Refrigerant charge *(Note 2) No No

Copper pipe gauge for

adjusting projection margin

Torque wrench

(For Ø12.7)

Electronic balance for

refrigerant charging

Flaring by conventional

flare tool

Connection of flare nut Yes No No

Evacuating, refrigerant
charge, run check, etc.

Refrigerant charge Yes Yes Yes

Existence of new

equipment for

R410A

Yes *(Note 1) *(Note 1)

Yes No No

R410A

Whether conventional

equipment can be

used

Conventional air-water
heat pump installation

Whether new equipment

can be used with

conventional refrigerant

* (Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin

is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

* (Note 2) Charging cylinder for R410A is being currently developed.

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipment 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) 7. Screwdriver (+, –) 11. Tape measure

3. Pipe cutter 8. Spanner or Monkey wrench 12. Metal saw

Also prepare the following equipment for other installation method and run check.

1. Clamp meter 3. Insulation resistance tester

2. Thermometer 4. Electroscope

4. Reamer 9. Hole core drill (Ø65)

5. Pipe bender 10. Hexagon wrench
Opposite side 4mm)6. Level vial

17

High Wall, Heat Pump Type

Service Manual

2-4. Recharging Refrigerant

When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the
following steps.

Recover the refrigerant, and check no refrigerant
remains in the equipment.

Connect the charge hose to packed valve service
port at the outdoor unit’s gas side.

Connect the charge hose to the vacuum pump
adapter.

Open fully both packed valves at liquid and gas
sides.

When the compound gauge’s pointer has indicated
–0.1 Mpa (–76 cmHg), place the handle Low in the
fully closed position, and turn off the vacuum pump’s
power switch.

Keep the status as it is for 1 to 2 minutes, and ensure
that the compound gauge’s pointer does not return.

Set the refrigerant cylinder to the electronic balance,
connect the connecting hose to the cylinder and the
connecting port of the electronic balance, and charge
liquid refrigerant.

Place the handle of the gauge manifold Low in the
fully opened position, and turn on the vacuum pump’s
power switch. Then, evacuating the refrigerant in the
cycle.

(For refrigerant charging, see the figure below.)

CAUTION

• Never charge refrigerant exceeding the specified amount.

• If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.

• 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.

Fig. 2-4-1 Configuration of refrigerant charging

(Water heat
exchanger unit)

(Outdoor unit)

Refrigerant cylinder

(with siphon)

Check valve

Opened
Open/close
valve for charging

Electronic balance for refrigerant charging

Opened

Opened

Closed

Service port

18

High Wall, Heat Pump Type

Service Manual

NOTE

• Be sure to make setting so that liquid can be
charged.

• When using a cylinder equipped with a siphon,
liquid can be charged without turning it upside
down.

It is necessary for charging refrigerant under condition
of liquid because R410A is mixed type of refrigerant.

Accordingly, when charging refrigerant from the
refrigerant cylinder to the equipment, charge it turning
the cylinder upside down if cylinder is not equipped
with siphon.

Fig. 2-4-2
Cylinder with siphon

Gauge manifold

OUTDOOR unit

NOTE

R410A refrigerant is HFC mixed refrigerant.
Therefore, if it is charged with gas, the composition of
the charged refrigerant changes and the
characteristics of the equipment varies.

Refrigerant

cylinder

Electronic

balance

Siphon

Fig. 2-4-3
Cylinder without siphon

Gauge manifold

OUTDOOR unit

Refrigerant

cylinder

Electronic

balance

19

High Wall, Heat Pump Type

Service Manual

2-5. Brazing of Pipes

2-5-1. Materials for Brazing

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 solder ability.

Phosphor bronze brazing filler

Phosphor bronze brazing filler is generally used to join
copper or copper alloy.

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.

REQUIREMENT

• 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.

• When performing brazing again at time of servicing,
use the same type of brazing filler.

2-5-2. Flux

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.

Characteristics required for flux

• Activated temperature of flux coincides with the
brazing temperature.

• Due to a wide effective temperature range, flux is
hard to carbonize.

• It is easy to remove slag after brazing.

• The corrosive action to the treated metal and brazing
filler is minimum.

• It excels in coating performance and is harmless to
the human body.
As the flux works in a complicated manner as
described above, it is necessary to select an
adequate type of flux according to the type and
shape of treated metal, type of brazing filler and
brazing method, etc.

Types of flux

• Non corrosive 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.

Piping materials for brazing and used brazing
filler/flux

Piping material Used brazing filler Used flux

Copper - Copper Phosphor copper Do not use

Copper - Iron Silver Paste flux

Iron - Iron Silver Vapour flux

NOTE

• Do not enter flux into the refrigeration cycle.

• When chlorine contained in the flux remains within
the pipe, the lubricating oil deteriorates.
Therefore, use a flux which does not contain
chlorine.

• When adding water to the flux, use water which
does not contain chlorine (e.g. distilled water or ion­exchange water).

• Remove the flux after brazing.

2-5-3. Brazing

As brazing work requires sophisticated techniques,
experiences based upon a theoretical knowledge, it
must be performed by a person qualified.
In order to prevent the oxide film from occurring in the
pipe interior during brazing, it is effective to proceed
with brazing while letting dry Nitrogen gas (N2) flow.

CAUTION

Never use gas other than Nitrogen gas.

20

High Wall, Heat Pump Type

r

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 m
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.

3

/Hr or 0.02 MPa (0.2kgf/cm2)

Service Manual

Fig. 2-5-1
Prevention of oxidation during brazing

M

Flow meter

Stop valve

Nitrogen gas
cylinder

From Nitrogen cylinde

Pipe

Rubber plug

Nitrogen
gas

21

High Wall, Heat Pump Type

3 CONSTRUCTION VIEWS

3-1. Indoor Unit

RAS-07PKVP-E, RAS-10PKVP-E, RAS-13PKVP-E, RAS-16PKVP-E, RAS-18PKVP-E
RAS-07PKVP-ND, RAS-10PKVP-ND, RAS-13PKVP-ND, RAS-16PKVP-ND, RAS-18PKVP-ND

(At the time of operation)

9

790

296.2

Service Manual

Front panel

77

8

left/right sides

Piping port from

62

(Knockout system)

18 77

Refrigerant pipe
connecting port Gas side

Flare dia. 9.52
(16,18PKVP-E (-ND) :dia. 12.7)
Outside length 0.35m

Installation plate

Stud bolt hole

For dia.8 to 10

53(dia.80)

45.5(dia.65)

Plasma ion charger

Moving panel

790

Air filter

Guard wire

62

Installation plate

hanging section

100

Name Plate

hanging section

312

590

77

Refrigerant pipe
connecting port Liquid side

Flare dia. 6.35
Outside length 0.4m

Drain hose VP16
Outside length 0.54mm

100

450
312

Hanging

section

Minimum

12

46

Minimum
distance to
wall

130 or more

Recommend
180 or more 180 or more

distance to
ceiling

55 or more

Recommend

70 or more

For dia.8 to dia.10

Minimum
distance to
wall

130 or more

Recommend

(At the time of a stop)

242

62

Piping port from

left/right sides

(Knockout system)

From wall to air outlet length

100

64
34

dia.4.2

37

74.5

Remote controller holder

58

Wireless remote controller

Model
RAS-**PKVP-E Series
RAS-**PKVP-ND Series

Stud bolt hole

Remote controller

WH-H06JE
WH-H07JE

Heat insulation

dia.28

(Drain hose detail)

19

8 77

4.5

19

163

Inner

dia.14

295

125.5

dia.16

diameter

Outer

diameter

dia.80

dia.65

installation plate

Lower part
hanging section

Center line

of main unit

Center line of

330 330

790

Lower part
hanging section

Shape line
installation plate

22

dia.65

dia.80

53(dia.80)

45.5(dia.65)

High Wall, Heat Pump Type

3-2. Outdoor Unit

RAS-07PAVP-E, RAS-10PAVP-E
RAS-07PAVP-ND, RAS-10PAVP-ND

[A] leg part

dia.11-14 U-shape hole
(For dia.8-10 anchor bolt)

600

Service Manual

90

290

26

14769.5
21

8

dia.436

449

550

52

35 483 6

Drain long hole

28

Fan guard

32

88

20

Drain hole

166 448

Dia.11 ×14 long hole

(For dia.8-10 anchor bolt)

C

483

108

500

780

dia.25

60

L

125108

88

257

4-dia.4.5 embossment

20

30

Drain long hole

Charging port

306

320

dia.7 hole pitch

Anchor bolt long hole pitch

8-dia.7 hole
(For fixing outdoor unit)

[B] leg part

69

145

79

157

54

31 143

342

54

38

320

R5.5

Detailed [A] leg part

11

320

R5.5

38

54

600

21

Packed valve cover

Connecting pipe port

(Pipe dia.6.35)

Connecting pipe port

(Pipe dia.9.52)

137

93

600

R15

2-dia.7 hole

Outside line

11

of product

2-dia.7 hole

Outside line
of product

R15

Detailed [B] leg part

25

Mounting dimensions of anchor bolt

2-dia.1

1 × 14 U-shape hole

(for dia.8-10 anchor bolt)

320

100 or more

[C]

200 or more

501

22

Fin guard

When installing the outdoor unit,

600

Intake

50 or more

[D]

leave open in at least two of

directions [A], [B], [C] and [D]

shown in the figure belo

250 or more

w.

[A]

Outside line
of product

[B]

Outlet

2-dia. 1 × 14 long hole
(for dia.8-10 anchor bolt)

Minimum distance

( )

from wall

1

23

High Wall, Heat Pump Type

RAS-13PAVP-E, RAS-16PAVP-E, RAS-18PAVP-E
RAS-13PAVP-ND, RAS-16PAVP-ND, RAS-18PAVP-ND

dia.11-14U-shape hole

[A] leg part

(For dia.8-10 anchor bolt)

Service Manual

90600

69.5

147

29026

1

dia. 1x14 long hole

(For dia.8-10 anchor bolt)

C

L

550

dia.436

6

449

35 483

32 500

52

Drain long hole

88

20

28

Drain hole

166

21

8

dia.25

60

108

108

780

125

448

88

Drain long hole

20

257483

Fan guard

30

4-dia.4.5 embossment

306

320

dia.7 hole pitch

8-dia.7 hole
(For fixing outdoor unit)

[B] leg part

69

Charging port

Anchor bolt long hole pitch

145

79

157

21

Packed valve cover

Connecting pipe port

(Pipe dia.6.35)

54

93

31

143

Connecting pipe port

(Pipe dia.9.52 : 13PAVP-E (-ND))
(Pipe dia.12.7 : 16PAVP-E (-ND))
(Pipe dia.12.7 : 18PAVP-E (-ND))

600
54

38

R15

2-dia.7 hole

320

R5.5

1

1

Outside line
of product

Detailed [A] leg part

1

1

2-dia.7 hole

320

R5.5

600

Outside line
of product

R15

38

54

137

Detailed [B] leg part

22

25

Mounting dimensions of anchor bolt

2-dia. 1 × 14 U-shape hole

1

(for dia.8-10 anchor bolt)

Intake

320

100 or more

[C]

200 or more

[D]

50 or more

[B]

Outlet

Fin guard

600

Intake

Outside line
of product

When installing the outdoor unit, leave open in at least two of

directions [A], [B], [C] and [D] shown in the figure below.

250 or more

[A]

Minimum distance

( )

from wall

2-dia. 1 × 14 long hole

1

(for dia.8-10 anchor bolt)

24

501

High Wall, Heat Pump Type

4 WIRING DIAGRAM

RAS-07PAVP-E, RAS-10PAVP-E, RAS-13PAVP-E, RAS-16PAVP-E, RAS-18PAVP-E
RAS-07PKVP-E, RAS-10PKVP-E, RAS-13PKVP-E, RAS-16PKVP-E, RAS-18PKVP-E
RAS-07PAVP-ND, RAS-10PAVP-ND, RAS-13PAVP-ND, RAS-16PAVP-ND, RAS-18PAVP-ND
RAS-07PKVP-ND, RAS-10PKVP-ND, RAS-13PKVP-ND, RAS-16PKVP-ND, RAS-18PKVP-ND

PULSE

BLK

3
3

CN300

~

DIODE
BLOCK

F04
FUSE

~

250V

15A

P06
P05
P04

COMPRESSOR

MOTOR
VALVE

PMV

5

3

4

6

5

3

6

4

CN700

SURGE
ABSORBER

VARISTOR

DB02

1

1

22

CM

33

4WAY VALVE

CN704

(WHI)

CN705

(RED)

~

COIL FOR
SWITCHING
COOLING
AND HEATING

YEL

2

2

1

1

RED

YEL

2

2

1

1

RED

4WAY VALVE
COIL FOR
SWITCHING
CYLINDERS

1

2

REACTOR

1

P07

P17

Q404

IGBT

2

WHI

WHI

P16

CT

F01
FUSE
250V
T25A

12
12

RELAY

P01

CN703

FUSE
250V
T3.15A

3

1

3

1

FUSE
250V

~

T3.15A

2

1
12

FUSE

~

250V

T6.3A

P02

BLK

WHI

3

2

3

2

DIODE
BLOCK

1
2

REACTOR

DB01

YEL

1
2

YEL

P15
P14

P35
P25

+
~
~

-

P21

P32

TE TD

2

1

TEMP. SENSOR)

2

1

(CONDENSER PIPE

CN600 CN601

THERMISTOR

3

1

TEMP. SENSOR)

3

1

(DISCHARGE PIPE

PTC

C09

POWER
RELAY

P.C.BOARD

MCC-5070

TO

2

1

TEMP. SENSOR)

2

1

(OUTDOOR

CN602

C08

++

P11

TS

3

1

TEMP. SENSOR)

3

1

(SUCTION PIPE

CN603

C10

F03
FUSE

-+--

250V
T3.15A

POWER

MODULE

IC200

P10

FAN MOTOR

FM

WHI

RED

2

1

2

1

MOSFET
Q300

Q305

~

RED
WHI
BLK

Service Manual

P03

ORN

1
1

Outdoor Unit

Indoor Unit

Heat Exchanger Sensor

(TC)

Heat Exchanger Sensor

(TCj)

Indoor Terminal Block

Thermo Sensor
(TA)

Humidity Sensor

1
2

CN212

3
4

BLK
BLK

BLK
BLK

BLK
BLK

BLK
BLK

CN801

312

4

CN501

1

1

CN602

2

2

(BLU)

1

1

CN603

2

2

(YEL)

1

1

CN601

2

2

(WHI)

CN604

1

1

2

2

(RED)

Main P.C Board

CN383

5

6

123

WHI
1235445

Moving Panel

1

3

2

BLK

WHI

RED

GRN&YEL

CN03 CN01

MCC-5068A

(WHI)

3124545

CN261
(WHI)

YEL

YEL

YEL

YEL

321

CN221

(WHI)

Heat
Exchanger

Varistor

R01

89105467

9

10

BLU

BLU

BLU

889

10

897

10

Wireless Unit

Assembly

MCC-5068B

T3.15A
250VAC

Fuse F01

7

546

BLU

BLU

BLU

7

6

5
546

SHEET
METAL

CN21

Line
Filter

32

BLU

BLU

BLU

4

Air purifier

Electrode

High-voltage
Power Supply

BLK

CN402

(WHI)

CN301(WHI)

132

WHI

1132
132

-ND model only

4

132

BLU

RED

BRW

RED

RED

3124

4

132

CN401

DC5V
DC12V
DC29V

~

-

+

+

~

5

4

6

31

5

6

4

31

BLK

WHI

YEL

BLU

43521

DC Motor

Fan Motor

HEATER FOR
ANTI FREEZE

Micro SW

21
21

24

(RED)

23
22
21
20

191819
18
17

16

16
15

14

14
13

12

12
11

10

10

989

8

Power Supply Circuit

77

6

6

5

5

4

4

3

3

2

2

1

1

Louver Motor Horizontal

RED

BRW

CN382

(WHI)

Louver Motor right

RED
RED

4

RED

3

RED

2

WHI

1

Louver Motor left

YEL

5

YEL

4

YEL

3

YEL
WHI

1

WHI

5

WHI

4

WHI

3

WHI

2

RED

1

3

2

1

55
4
3
2
1

5
4
3
22
1

5
4
3
2
1

N

L

POWER SUPPLY

220-240V ~ ,50Hz
220-230V ~ ,60Hz

25

High Wall, Heat Pump Type

Service Manual

5 SPECIFICATIONS OF ELECTRICAL PARTS

5-1. Indoor Unit

RAS-07PKVP-E, RAS-10PKVP-E, RAS-13PKVP-E, RAS-16PKVP-E, RAS-18PKVP-E
RAS-07PKVP-ND, RAS-10PKVP-ND, RAS-13PKVP-ND, RAS-16PKVP-ND, RAS-18PKVP-ND

No. Parts name Type Specifications

Fan motor (for Indoor Unit)

1

Room temp. sensor (TA-sensor) ( – ) 10kΩ at 25°C

2

Heat exchanger temp. sensor (TC-sensor) ( – ) 10kΩ at 25°C

3

Heat exchanger temp. sensor (TCj-sensor) ( – ) 10kΩ at 25°C

4

Humidity sensor C7-M3R-TC2 31kΩ 60%RH

5

Louver motor (right, left, Horizontal) MP24Z3N Output (Rated) 1W, 16 poles, DC12V

6

Louver motor (Moving panel) MP24Z4N Output (Rated) 1W, 16 poles, DC12V

7

5-2. Outdoor Unit

E:ICF-340-30-4

ND:ICF-340-30-4A

DC280–340V, 30W

RAS-07PAVP-E, RAS-10PAVP-E, RAS-13PAVP-E, RAS-16PAVP-E, RAS-18PAVP-E
RAS-07PAVP-ND, RAS-10PAVP-ND, RAS-13PAVP-ND, RAS-16PAVP-ND, RAS-18PAVP-ND

No. Parts name Model name Rating

Reactor CH-57 L = 10mH, 16A

1

Fan motor (for Outdoor Unit) ICF-140-43-4R DC140V, 43W

2

Suction temp. sensor (TS sensor) (Inverter attached) 10kΩ (25°C)

3

Discharge temp. sensor (TD sensor) (Inverter attached) 1,905kΩ (120°C)

4

Outside air temp. sensor (TO sensor) (Inverter attached) 10kΩ (25°C)

5

Heat exchanger temp. sensor (TE sensor) (Inverter attached) 10kΩ (25°C)

6

Terminal block (6P) JXO-6B 20A, AC250V

7

Compressor DA111A1FD-21F 3-phases 4 poses 750W

8

Coil for P.M.V. C12A-80A DC12V

9
10
11
12
13

Coil for 4-way valve (Cooling/heating switching) VHV-01AZ535A1 DC12V

Coil for 4-way valve (Comp. cylinder switching) VHV-01AZ535B1 DC12V

Cord heater assembly (-ND model only) CSC-2 AC230V, 75W

Heater fuse assembly (-ND model only) — AC250V, 3.15A

26

High Wall, Heat Pump Type

6 REFRIGERANT CYCLE DIAGRAM

6-1. Refrigerant Cycle Diagram

TA

P

Pressure measurement
Gauge attaching port

Vacuum pump connecting portV

Deoxidized copper pipe

Outer dia.:
07PAVP-E(-ND) : 9.52mm
10PAVP-E(-ND) : 9.52mm
13PAVP-E(-ND) : 9.52mm
16PAVP-E(-ND) : 12.7mm
18PAVP-E(-ND) : 12.7mm
Thickness : 0.8mm

INDOOR UNIT

Indoor heat

exchanger

Cross flow fan

Deoxidized copper pipe
Outer dia. : 6.35mm
Thickness : 0.8mm

Sectional shape
of heat insulator

TC

T1

Temp. measurement

TCj

Allowable height

Max. : 20m
Min. : 2m
Chargeless : 15m
Charge : 20g/m
(16 to 20m)

difference : 10m

Allowable pipe length

Service Manual

4-way valve

a

(STF-0218G)

TS

Muffler

TD

Compressor
(DA111A1FD-21F)

Muffler

Outdoor heat

exchanger

Propeller fan

OUTDOOR UNIT

TO

T1

T1

4-Way valve
(STF-0125G)

2

1

2

1

Capillary
Ø1.2x80

Distributor

TE

Temp. measurement

T2

Gas leak check position
Refrigerant flow (Cooling)
Refrigerant flow (Heating)

1

Refrigerant flow (Comp. 1 cylinder operation)
Refrigerant flow (Comp. 2 cylinder operation)

2

Temp. Sensor

Strainer

Pulse motor
valve
(SEV16RCC)

Refrigerant amount :

07PAVP-E(-ND) : 1.12kg
10PAVP-E(-ND) : 1.12kg
13PAVP-E(-ND) : 1.15kg
16PAVP-E(-ND) : 1.15kg
18PAVP-E(-ND) : 1.15kg

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)

27

High Wall, Heat Pump Type

6-2. Operation Data

Cooling

Service Manual

Temperature

condition (°C)

Indoor Outdoor T1 (°C) T2 (°C)

27/19 35/–

Model name

RAS-

07PKVP-E

07PKVP-ND

10PKVP-E

10PKVP-ND

10PKVP-E

10PKVP-ND

16PKVP-E

16PKVP-ND

18PKVP-E

18PKVP-ND

Standard
pressure

P (MPa)

1.0 to 1.2 14 to 16 39 to 42 High High 26

1.0 to 1.2 13 to 15 40 to 43 High High 34

0.9 to 1.1 10 to 13 42 to 45 High High 54

0.8 to 1.0 8 to 11 44 to 47 High High 77

0.8 to 1.0 7 to 10 45 to 48 High High 90

Heat exchanger

pipe temp.

Heating

Temperature

condition (°C)

Indoor Outdoor T1 (°C) T2 (°C)

20/– 7/6

Model name

RAS-

07PKVP-E

07PKVP-ND

10PKVP-E

10PKVP-ND

13PKVP-E

13PKVP-ND

16PKVP-E

16PKVP-ND

18PKVP-E

18PKVP-ND

Standard
pressure

P (MPa)

1.8 to 2.0 32 to 34 2 to 4 High High 35

2.0 to 2.2 35 to 37 2 to 4 High High 45

2.2 to 2.4 38 to 41 2 to 4 High High 60

2.5 to 2.7 43 to 46 1 to 3 High High 85

2.6 to 2.8 44 to 47 1 to 3 High High 93

Heat exchanger

pipe temp.

Indoor

fan mode

Indoor

fan mode

Outdoor

fan mode

Outdoor

fan mode

Compressor

revolution

(rps)

Compressor

revolution

(rps)

NOTE

• Measure surface temperature of heat exchanger pipe around centre of heat exchanger path U bent.
(Thermistor thermometer)

• Connecting piping condition : 5 m

28

High Wall, Heat Pump Type

7 CONTROL BLOCK DIAGRAM

7-1. Indoor Unit

RAS-07PKVP-E, RAS-10PKVP-E, RAS-13PKVP-E, RAS-16PKVP-E, RAS-18PKVP-E
RAS-07PKVP-ND, RAS-10PKVP-ND, RAS-13PKVP-ND, RAS-16PKVP-ND, RAS-18PKVP-ND

Service Manual

Humidity Sensor

Heat Exchanger Sensor (TCj)

Heat Exchanger Sensor (TC)

Room Temperature Sensor (TA)

Infrared Rays Signal Receiver

and Indication

Initializing Circuit

Clock Frequency

Oscillator Circuit

Power Supply

Circuit

Converter

(D.C circuit)

Noise Filter

From Outdoor Unit
220-240V
220-230V

~
~

50Hz
60Hz

M.C.U.

Functions

• Cold draft preventing Function

• 3-minute Delay at Restart for
Compressor

• Fan Motor Starting Control

• Processing
(Temperature Processing)

• Timer

• Serial Signal Communication

• Clean Function

Serial Signal Transmitter/Receiver

Serial Signal Communication

(Operation Command and Information)

Indoor Unit Control Unit

Louver

Motor

Louver Motor
Drive Control

Indoor Fan

Motor Control

Indoor

Fan Motor

Air purifier

unit

Micro Switch

Remote Controller

Remote Controller

Operation (START/STOP)

Operation Mode Selection

AUTO, COOL, DRY, HEAT

Thermo. Setting

Fan Speed Selection

ON TIMER Setting

OFF TIMER Setting

Louver AUTO Swing

Louver Direction Setting

SLEEP MODE

Hi POWER

Air Purifier

8°C (-ND model only)

Infrared Rays, 36.7kHz

29

High Wall, Heat Pump Type

Service Manual

7-2. Outdoor Unit (Inverter Assembly)

RAS-07PAVP-E, RAS-10PAVP-E, RAS-13PAVP-E, RAS-16PAVP-E, RAS-18PAVP-E
RAS-07PAVP-ND, RAS-10PAVP-ND, RAS-13PAVP-ND, RAS-16PAVP-ND, RAS-18PAVP-ND

Compressor

Outdoor

Fan motor

Inverter

(DC AC)

P.M.V. : Pulse Motor Valve

M.C.U. : Micro Control Unit

MICRO-COMPUTER BLOCK DIAGRAM

MCC5070 (P.C.B) OUTDOOR UNIT

Indoor unit

send/receive circuit

detect

Current

circuit

Gate drive

detect

Current

M.C.U

• PWM synthesis function

• Input current release control

• IGBT over-current detect control

• Outdoor fan control

• High power factor correction control

• Inverter output frequency control

• A/D converter function

• P.M.V. control

circuit

Gate drive

7MHz

Clock

frequency

• Discharge temp. control

• 4-way valve control

• Signal communication to indoor unit

High Power

factor Correction

circuit

Converter

(AC DC)

sensor

Input current

Filter

Noise

Inverter

(DC AC)

Relay

circuit

of P.M.V.

Driver circuit

Relay

circuit

valve

4-way

valve

4-way

P.M.V.

heater

Freeze

prevention

switching

Comp. cylinder

switching

Cooling/heating

(-ND model only)

220-240 V ~ 50Hz

For INDOOR UNIT

220-230 V ~ 60Hz

Outdoor air temp.

Discharge temp.

sensor (TO)

sensor (TD)

Heat exchanger

Suction temp.

temp.sensor (TE)

sensor (TS)

30