Toshiba RAS-M13GKCVP-E, RAS-M14GACV-E, RAS-M18GACV-E, RAS-M14GAV-E, RAS-M18GAV-E SERVICE MANUAL

FILE NO. A05-009

SERVICE MANUAL

SPLIT TYPE

<Heat Pump Type> <Cooling OnlyType>

Indoor Unit Indoor Unit

RAS-B10GKVP-E RAS-M10GKCVP-E
RAS-B13GKVP-E RAS-M13GKCVP-E
RAS-B16GKVP-E RAS-M16GKCVP-E

Outdoor Unit Outdoor Unit

RAS-M14GAV-E RAS-M14GA CV-E
RAS-M18GAV-E RAS-M18GA CV-E

R410A

PRINTED IN JAPAN, Nov.,2005 ToMo

CONTENTS

1. SAFETY PRECAUTIONS .......................................................................... 3

2. SPECIFICATIONS ..................................................................................... 5

3. REFRIGERANT R410A ........................................................................... 12

4. CONSTRUCTION VIEWS ........................................................................ 20

5. WIRING DIAGRAM .................................................................................. 22

6. SPECIFICATIONS OF ELECTRICAL PARTS ......................................... 24

7. REFRIGERANT CYCLE DIAGRAM ........................................................ 25

8. CONTROL BLOCK DIAGRAM................................................................ 30

9. OPERATION DESCRIPTION................................................................... 33

10. INSTALLATION PROCEDURE................................................................ 58

11. HOW TO DIAGNOSE THE TROUBLE...................................................... 75

12. HOW TO REPLACE THE MAIN PARTS................................................... 98

13. EXPLODED VIEWS AND PARTS LIST ................................................. 118

Cord Heater Installation Work ........................................................ Appendix-1

– 2 –

1. SAFETY PRECAUTIONS

For general public use

Power supply cord of outdoor unit shall be more than 1.5 mm 2 (H07RN-F or 245IEC66) polychloroprene
sheathed flexible cord.

• Read this “SAFETY PRECAUTIONS” carefully before servicing.

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

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

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

CAUTION

New Refrigerant Air Conditioner Installation

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

R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because
the working pressure of R410A refrigerant is approx. 1.6 times of refrigerant R22. Accompanied with the
adoption of the new refrigerant, the refrigeration machine oil has also been changed. Therefore, during
installation work, be sure that water , dust, former refrigerant, or refrigeration machine oil does not enter into
the new type refrigerant R410A air conditioner circuit.

To prevent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging
port on main unit and installation tools are different from those used for the conventional refrigerant units.

Accordingly, special tools are required for the new refrigerant (R410A) units . For connecting pipes, use new
and clean piping materials with high pressure fittings made for R410A only, so that 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.

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY

This appliance must be connected to the main power supply by a circuit breaker or a switch with a contact
separation of at least 3 mm.

The installation fuse (25A D type ) must be used for the power supply line of this air conditioner.

DANGER

• ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL TO IN­STALL/MAINTAIN THE AIR CONDITIONER.

INAPPROPRIATE SERVICING MAY RESULT IN WATER LEAKAGE, ELECTRIC SHOCK OR FIRE.

• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY 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 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.

– 3 –

• 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 VER Y 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.

CAUTION

• Exposure of unit to water or other moisture bef ore 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:

If a heating operation would be continuously perf ormed 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.

– 4 –

2. SPECIFICATIONS

The indoor and outdoor units that can be used in combination are shown in the tables below.

Table of models that can be connected

Type

Heat pump

Cooling-only

Outdoor unit

RAS-M14GAV–E

RAS-M18GAV–E

RAS-M14GACV–E

RAS-M18GACV–E

RAS-B10GKVP–E RAS-B13GKVP–E
RAS-M10GKV–E RAS-M13GKV–E
RAS-M10GDV–E RAS-M13GDV–E
RAS-B10GKVP–E RAS-B13GKVP–E RAS-B16GKVP–E
RAS-M10GKV–E RAS-M13GKV–E RAS-M16GKV–E
RAS-M10GDV–E RAS-M13GDV–E RAS-M16GDV–E
RAS-M10GKCVP–E RAS-M13GKCVP–E
RAS-M10GKCV–E RAS-M13GKCV–E
RAS-M10GDCV–E RAS-M13GDCV–E
RAS-M10GKCVP–E RAS-M13GKCVP–E RAS-M16GKCVP–E
RAS-M10GKCV–E RAS-M13GKCV–E RAS-M16GKCV–E
RAS-M10GDCV–E RAS-M13GDCV–E RAS-M16GDCV–E

Table of models that can be used in combination

Type

Heat pump

Outdoor unit

RAS-M14GAV–E
RAS-M18GAV–E

Combinations of indoor unit models that can be connected

10 + 10, 10 + 13
10 + 10, 10 + 13, 10 + 16, 13 + 13

Indoor unit

Cooling-only

RAS-M14GACV–E
RAS-M18GACV–E

10 + 10, 10 + 13
10 + 10, 10 + 13, 10 + 16, 13 + 13

NOTES

A 1-room connection is not an option for the indoor units (you cannot connect only one indoor unit).
A 2-room connection must always be used for the indoor units (you must connect two indoor units).

With the RAS-M14GAV-E and RAS-M14GACV-E outdoor unit models, the 13 + 13 combination is not an option.
With the RAS-M18GAV-E and RAS-M18GACV-E outdoor unit models, the 13 + 16 or 16 + 16 combination is not

an option.

The contents noted in this service manual limit the indoor units to the RAS-B10GKVP-E, RAS-B13GKVP-E,
RAS-B16GKVP-E, RAS-M10GKCVP-E, RAS-M13GKCVP-E and RAS-M16GKCVP-E.

For other indoor units that can also be used in combination, see the service manual of each indoor unit.

Indoor unit

RAS-M10GDV-E RAS-M10GDCV-E
RAS-M13GDV-E RAS-M13GDCV-E
RAS-M16GDV-E RAS-M16GDCV-E
RAS-M10GKV-E RAS-M10GKCV-E

File No.

A05-010

RAS-M13GKV-E RAS-M13GKCV-E
RAS-M16GKV-E RAS-M16GKCV-E

TBA

– 5 –

(kW)

(kW)

(kW)

(kW)

(A)

(W)

(

)

(%)

(A)

(W)

(%)

(

)

(A)

(

)

(

)

(

g)

(

)

(

g)

g

(

)

(mm)

(mm)

(mm)

(kg)

(W)

(

)

(mm)

(mm)

(mm)

(kg)

(W)

(W)

(

)

(m)

(m)

(m)

(m)

(kg)

(

g)

(°C)

(

g)

(°C)

2-1. Specifications

<Heat Pump Models>

RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E / RAS-M14GAV-E, RAS-M18GAV-E

Unit model
Cooling capacity

Cooling capacity range
Heating capacity
Heating capacity range
Power supply 220–240 V – 1 Ph – 50Hz / 220 V – 1 Ph –60Hz

Electric
characteristics

COP (Cooling/Heating) 3.70/4.36 3.25/3.62

Operating
noise

Indoor unit

Outdoor unit

Piping
connection

Wiring connection
Usable temperature

range

Accessory

Indoor
Outdoor

Unit model

Indoor

220V/230V/240V

Outdoor

220V/230V/240V

Indoor

Cooling/Heatin

Outdoor

Cooling/Heatin

Unit model
Dimension
Net weight

Fan motor output
Air flow rate (Cooling/Heating)
Unit model

Net weight

Fan motor output
Air flow r ate
Type Flare connection F lare con nection

Indoor unit
Outdoor unit

Maximum length (per unit)
Maximum length (total)
Maximum chargeless length (total)
Maximum height difference
Additional refrigerant 20g/m (pipe length 21m to 30m) 20g/m (pipe length 21m to 30m)
Name of refrigerant R410A R410A
Weight

Indoor unit

Outdoor unit

Power supply 3 Wires : includes earth
Interconnection 4 Wires : includes earth
Indoor
Outdoor
Unit model
Installation plate 1 1 1
Wireless remote controller 1 1 1
Batteries 2 2 2
Remote controller holder 1 1 1
Zeolite-plus filter 1 1 1
Plasma pure filter 1 1 1
Remote controller holder mounting screw 2 (Ø3.1 × 16L) 2 (Ø3.1 × 16L) 2 (Ø3.1 × 16L)
Owner’s manual 1 1 1
Mounting screw 6 (Ø4 × 25L) 6 (Ø4 × 25L) 6 (Ø4 × 25L)
Installation manual 1 1 1
Unit model
Installation manual 1 1
Specifications 1 1
Drain nipple 1 1
Water-proof rubber cap 2 2

Running current
Power consumption
Power factor
Unit model
Operati on mode

Running current
Power consumption
Power factor
Starting current

Unit model
High
Medium
Low
Unit model
2 indoor units oper atin

Height
Width
Depth

Height
Width
Depth

Motor output
Type Twin rotary type with DC-inver t er variable speed controlCompressor
Model DA111A1F-20F1 DA130A1F-25F

Unit model
Liquid side/Gas side Ø6.35/ Ø9.52 Ø6.35/ Ø9.52 Ø6.35/ Ø12.7
Unit model
Liquid side/Gas side Ø6.35/ Ø9.52 Ø6.35/ Ø9.52

Cooling/Heatin
Cooling/Heatin

dB•A
dB•A
dB•A

dB•A

m³/h

m³/h

4.87/4.64/4.44 4.43/4.23/4.04 7.12/6.80/6.50 8.28/7.91/7.57

RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E

RAS-M14GAV-E RAS-M18GAV-E

4.0 5.2

1.4 – 4.5 1.4 – 6.2

4.4 6.7

0.9 – 5.2 0.9 – 8.5

RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E (∗)

0.15 0.15 0.15
30 30 30

91/87/83 91/87/83 91/87/83

RAS-M14GAV-E RAS-M18GAV-E

Cooling Heating Cooling Heating

1020 950 1540 1790

95 97 98 98

5.17/4.94/4.74 7.42/7.10/6.80

RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E (∗)

42/43 43/44 45/45
33/34 34/35 36/36
27/27 27/27 29/29

RAS-M14GAV-E RAS-M18GAV-E

46/48 48/50

RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E (∗)

250 250 250
790 790 790
215 215 215

99 9

30 30 30

550/610 560/640 640/660

RAS-M14GAV-E RAS-M18GAV-E

550 550
780 780Dimension
290 290

36 40

750 1100

43 43

1820 2100

RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E

RAS-M14GAV-E RAS-M18GAV-E

20 20
30 30
20 20
10 10

0.90 1.20

21 to 32/0 to 27

5 to 43/–10 to 24

RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E

RAS-M14GAV-E RAS-M18GAV-E

• (∗) The RAS-B16GKVP-E cannot be used in combination with the RAS-M14GAV-E.

• For performance when each indoor unit is combined with other unit, refer to the separate table.

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

– 6 –

<Cooling Only Models>

(kW)

(kW)

(kW)

(kW)

(∗)

(A)

(W)

(

)

(%)

(A)

(W)

(%)

(

)

(A)

(∗)

(

)

(

)

(

g)

(

)

(

g)

g

(

)

(∗)

(mm)

(mm)

(mm)

(kg)

(W)

(

)

(mm)

(mm)

(mm)

(kg)

(W)

(W)

(

)

(m)

(m)

(m)

(m)

(kg)

(

g)

(°C)

(

g)

(°C)

RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E / RAS-M14GACV-E, RAS-M18GACV-E

Unit model
Cooling capacity

Cooling capacity range
Heating capacity
Heating capacity range
Power supply 220–240 V – 1 Ph – 50Hz / 220 V – 1 Ph –60Hz

Electric
characteristics

COP (Cooling/Heating) 3.70/– 3.25/–

Operating
noise

Indoor unit

Outdoor unit

Piping
connection

Wiring connection
Usable temperature

range

Accessory

Indoor
Outdoor

Unit model

Indoor

220V/230V/240V

Outdoor

220V/230V/240V

Indoor

Cooling/Heatin

Outdoor

Cooling/Heatin

Unit model

Net weight
Fan motor output
Air flow rate (Cooling/Heating)
Unit model

Net weight

Fan motor output
Air flow r ate
Type Flare connection F lare con nection

Indoor unit
Outdoor unit

Maximum length (per unit)
Maximum length (total)
Maximum chargeless length (total)
Maximum height difference
Additional refrigerant 20g/m (pipe length 21m to 30m) 20g/m (pipe length 21m to 30m)
Name of refrigerant R410A R410A
Weight

Indoor unit

Outdoor unit

Power supply 3 Wires : includes earth
Interconnection 4 Wires : includes earth
Indoor
Outdoor
Unit model
Installation plate 1 1 1
Wireless remote controller 1 1 1
Batteries 2 2 2
Remote controller holder 1 1 1
Zeolite-plus filter 1 1 1
Plasma pure filter 1 1 1
Remote controller holder mounting screw 2 (Ø3.1 × 16L) 2 (Ø3.1 × 16L) 2 (Ø3.1 × 16L)
Owner’s manual 1 1 1
Mounting screw 6 (Ø4 × 25L) 6 (Ø4 × 25L) 6 (Ø4 × 25L)
Installation manual 1 1 1
Unit model
Installation manual 1 1
Specifications 1 1
Drain nipple ——
Water-proof rubber cap ——

Running current
Power consumption
Power factor
Unit model
Operati on mode

Running current
Power consumption
Power factor
Starting current

Unit model
High
Medium
Low
Unit model
2 indoor units oper atin

Height
Width
Depth

Height
Width
Depth

Motor output
Type Twin rotary type with DC-inver t er variable speed controlCompressor
Model DA111A1F-20F1 DA130A1F-25F

Unit model
Liquid side/Gas side Ø6.35/ Ø9.52 Ø6.35/ Ø9.52 Ø6.35/ Ø12.7
Unit model
Liquid side/Gas side Ø6.35/ Ø9.52 Ø6.35/ Ø9.52

Cooling/Heatin
Cooling/Heatin

dB•A
dB•A
dB•A

dB•A

m³/h

m³/h

RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E

RAS-M14GACV-E RAS-M18GACV-E

4.0 5.2

1.4 – 4.5 1.4 – 6.2

——
——

RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E

0.15 0.15 0.15
30 30 30

91/87/83 91/87/83 91/87/83

RAS-M14GACV-E RAS-M18GACV-E

Cooling Heating Cooling Heating

4.87/4.64/4.44 — 7.12/6.80/6.50 —

1020 — 1540 —

95 — 98 —

5.17/4.94/4.74 7.42/7.10/6.80

RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E

42/– 43/– 45/–
33/– 34/– 36/–
27/– 27/– 29/–

RAS-M14GACV-E RAS-M18GACV-E

46/– 48/–

RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E

250 250 250
790 790 790Dimension
215 215 215

99 9

30 30 30

550/– 560/– 640/–

RAS-M14GACV-E RAS-M18GACV-E

550 550
780 780Dimension
290 290

36 40

750 1100

43 43

1820 2100

RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E

RAS-M14GACV-E RAS-M18GACV-E

20 20
30 30
20 20
10 10

0.90 1.20

21 to 32/0 to 27

5 to 43/–10 to 24

RAS-M10GKCVP-E RAS-M13GKCVP-E RAS-M16GKCVP-E

RAS-M14GACV-E RAS-M18GACV-E

• (∗) The RAS-B16GKCVP-E cannot be used in combination with the RAS-M14GACV-E.

• For performance when each indoor unit is combined with other unit, refer to the separate table.

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

– 7 –

2-2. Performance Specifications Combinations of Indoor Unit

p

<Cooling> RASM14GAV-E, RAS-M14GACV-E

Operation

mode

Cooling

Volts Operating indoor unit Unit capacity (kW) Capacity Running current Power Consumption

V

220

230

240

Operation

status

1 unit

2 units

1 unit

2 units

1 unit

2 units

<Heating> RAS-M14GAV-E

Operation

mode

Heating

Volts Operating indoor unit Unit capacity (kW) Capacity Running current Power Consumption

V

220

230

240

O

status

2 units

2 units

2 units

eration

1 unit

1 unit

1 unit

ABAB kW A W

10 — 2.5 — 2.5 (1.1 to 3.2) 3. 05 (1.10 to 4.30) 570 (170 to 880)
13 — 3.5 — 3.5 (1.1 to 3.8) 5. 26 (1.10 to 6.06) 1100 (170 to 1280)
10 10 1.95 1.95 3.9 (1.4 to 4.4) 5.12 (1.49 to 6.11) 1070 (230 to 1290)
13 10 2.33 1.67 4.0 (1.4 to 4.5) 5.17 (1.49 to 6.16) 1080 (230 to 1300)
10 — 2.5 — 2.5 (1.1 to 3.2) 2. 92 (1.06 to 4.11) 570 (170 to 880)
13 — 3.5 — 3.5 (1.1 to 3.8) 5. 03 (1.06 to 5.80) 1100 (170 to 1280)
10 10 1.95 1.95 3.9 (1.4 to 4.4) 4.90 (1.43 to 5.84) 1070 (230 to 1290)
13 10 2.33 1.67 4.0 (1.4 to 4.5) 4.94 (1.43 to 5.89) 1080 (230 to 1300)
10 — 2.5 — 2.5 (1.1 to 3.2) 2. 79 (1.01 to 3.94) 570 (170 to 880)
13 — 3.5 — 3.5 (1.1 to 3.8) 4. 82 (1.01 to 5.56) 1100 (170 to 1280)
10 10 1.95 1.95 3.9 (1.4 to 4.4) 4.69 (1.37 to 5.60) 1070 (230 to 1290)
13 10 2.33 1.67 4.0 (1.4 to 4.5) 4.74 (1.37 to 5.64) 1080 (230 to 1300)

ABAB kW A W

10 — 3.2 — 3.2 (0.5 to 4.4) 4. 07 (0.84 to 6.00) 850 (130 to 1280)
13 — 4.2 — 4.2 (0.5 to 4.7) 5. 86 (0.84 to 6.33) 1250 (130 to 1350)
10 10 2.15 2.15 4.3 (0.9 to 5.1) 4.59 (1.10 to 5.76) 980 (170 to 1230)
13 10 2.50 1.90 4.4 (0.9 to 5.2) 4.73 (1.10 to 5.86) 1010 (170 to 1250)
10 — 3.2 — 3.2 (0.5 to 4.4) 3. 89 (0.81 to 5.74) 850 (130 to 1280)
13 — 4.2 — 4.2 (0.5 to 4.7) 5. 60 (0.81 to 6.05) 1250 (130 to 1350)
10 10 2.15 2.15 4.3 (0.9 to 5.1) 4.39 (1.06 to 5.51) 980 (170 to 1230)
13 10 2.50 1.90 4.4 (0.9 to 5.2) 4.53 (1.06 to 5.60) 1010 (170 to 1250)
10 — 3.2 — 3.2 (0.5 to 4.4) 3. 73 (0.77 to 5.50) 850 (130 to 1280)
13 — 4.2 — 4.2 (0.5 to 4.7) 5. 37 (0.77 to 5.80) 1250 (130 to 1350)
10 10 2.15 2.15 4.3 (0.9 to 5.1) 4.21 (1.01 to 5.28) 980 (170 to 1230)
13 10 2.50 1.90 4.4 (0.9 to 5.2) 4.34 (1.01 to 5.37) 1010 (170 to 1250)

The above specification values are those under the conditions.

Cooling Indoor : DB/WB=27/19°C Heating Indoor : DB=20°C

Outdoor : DB=35°C Outdoor : DB/WB=7/6°C

– 8 –

<Cooling> RAS-M18GAV-E , RAS-M18GACV-E

Operation

mode

Cooling

Volts Operating indoor unit Unit capacity (kW) Capacity Running current Power Consumption

V

220

230

240

Operation

status

2 units

2 units

1 unit

2 units

ABAB kW A W

10 — 2.70 — 2.7 (1.1 to 3.2) 3.03 (1.43 to 03.83) 0600 (220 to 0800)
13 — 3.70 — 3.7 (1.1 to 4.2) 5.10 (1.43 to 06.49) 1100 (220 to 1400)1 unit
16 — 4.50 — 4.5 (1.1 to 4.9) 6.96 (1.43 to 07.88) 1500 (220 to 1700)
10 10 2.55 2.55 5.1 (1.4 to 6.1) 7.19 (1.69 to 09.97) 1550 (260 to 2150)
13 10 2.85 2.35 5.2 (1.4 to 6.2) 7.42 (1.69 to 10.06) 1600 (260 to 2170)
13 13 2.60 2.60 5.2 (1.4 to 6.2) 7.42 (1.69 to 10.06) 1600 (260 to 2170)
16 10 3.25 1.95 5.2 (1.4 to 6.2) 7.42 (1.69 to 10.06) 1600 (260 to 2170)
10 — 2.70 — 2.7 (1.1 to 3.2) 2.90 (1.37 to 03.66) 0600 (220 to 0800)
13 — 3.70 — 3.7 (1.1 to 4.2) 4.88 (1.37 to 06.21) 1100 (220 to 1400)1 unit
16 — 4.50 — 4.5 (1.1 to 4.9) 6.65 (1.37 to 07.54) 1500 (220 to 1700)
10 10 2.55 2.55 5.1 (1.4 to 6.1) 6.88 (1.61 to 09.54) 1550 (260 to 2150)
13 10 2.85 2.35 5.2 (1.4 to 6.2) 7.10 (1.61 to 09.63) 1600 (260 to 2170)
13 13 2.60 2.60 5.2 (1.4 to 6.2) 7.10 (1.61 to 09.63) 1600 (260 to 2170)
16 10 3.25 1.95 5.2 (1.4 to 6.2) 7.10 (1.61 to 09.63) 1600 (260 to 2170)
10 — 2.70 — 2.7 (1.1 to 3.2) 2.78 (1.31 to 03.51) 0600 (220 to 0800)
13 — 3.70 — 3.7 (1.1 to 4.2) 4.68 (1.31 to 05.95) 1100 (220 to 1400)
16 — 4.50 — 4.5 (1.1 to 4.9) 6.38 (1.31 to 07.23) 1500 (220 to 1700)
10 10 2.55 2.55 5.1 (1.4 to 6.1) 6.59 (1.55 to 09.14) 1550 (260 to 2150)
13 10 2.85 2.35 5.2 (1.4 to 6.2) 6.80 (1.55 to 09.23) 1600 (260 to 2170)
13 13 2.60 2.60 5.2 (1.4 to 6.2) 6.80 (1.55 to 09.23) 1600 (260 to 2170)
16 10 3.25 1.95 5.2 (1.4 to 6.2) 6.80 (1.55 to 09.23) 1600 (260 to 2170)

<Heating>RAS-M18GAV-E

Operation

mode

Heating

Volts Operating indoor unit Unit capacity (kW) Capacity Running current Power Consumption

V

220

230

240

Operation

status

2 units

2 units

1 unit

2 units

ABAB kW A W

10 — 4.00 — 4.0 (0.7 to 5.2) 5.57 (1.10 to 07.88) 1200 (170 to 1700)
13 — 5.00 — 5.0 (0.7 to 6.5) 8.35 (1.10 to 11.73) 1800 (170 to 2530)1 unit
16 — 5.50 — 5.5 (0.7 to 6.9) 8.81 (1.10 to 11.73) 1900 (170 to 2530)
10 10 3.25 3.25 6.5 (0.9 to 8.2) 8.35 (1.30 to 11.09) 1800 (200 to 2390)
13 10 3.51 3.19 6.7 (0.9 to 8.5) 8.58 (1.30 to 11.36) 1850 (200 to 2450)
13 13 3.35 3.35 6.7 (0.9 to 8.5) 8.58 (1.30 to 11.36) 1850 (200 to 2450)
16 10 3.88 2.82 6.7 (0.9 to 8.5) 8.58 (1.30 to 11.36) 1850 (200 to 2450)
10 — 4.00 — 4.0 (0.7 to 5.2) 5.32 (1.06 to 07.54) 1200 (170 to 1700)
13 — 5.00 — 5.0 (0.7 to 6.5) 7.99 (1.06 to 11.22) 1800 (170 to 2530)1 unit
16 — 5.50 — 5.5 (0.7 to 6.9) 8.43 (1.06 to 11.22) 1900 (170 to 2530)
10 10 3.25 3.25 6.5 (0.9 to 8.2) 7.99 (1.24 to 10.60) 1800 (200 to 2390)
13 10 3.51 3.19 6.7 (0.9 to 8.5) 8.21 (1.24 to 10.87) 1850 (200 to 2450)
13 13 3.35 3.35 6.7 (0.9 to 8.5) 8.21 (1.24 to 10.87) 1850 (200 to 2450)
16 10 3.88 2.82 6.7 (0.9 to 8.5) 8.21 (1.24 to 10.87) 1850 (200 to 2450)
10 — 4.00 — 4.0 (0.7 to 5.2) 5.10 (1.01 to 07.23) 1200 (170 to 1700)
13 — 5.00 — 5.0 (0.7 to 6.5) 7.65 (1.01 to 10.76) 1800 (170 to 2530)
16 — 5.50 — 5.5 (0.7 to 6.9) 8.08 (1.01 to 10.76) 1900 (170 to 2530)
10 10 3.25 3.25 6.5 (0.9 to 8.2) 7.65 (1.19 to 10.16) 1800 (200 to 2390)
13 10 3.51 3.19 6.7 (0.9 to 8.5) 7.87 (1.19 to 10.42) 1850 (200 to 2450)
13 13 3.35 3.35 6.7 (0.9 to 8.5) 7.87 (1.19 to 10.42) 1850 (200 to 2450)
16 10 3.88 2.82 6.7 (0.9 to 8.5) 7.87 (1.19 to 10.42) 1850 (200 to 2450)

The above specification values are those under the conditions.

Cooling Indoor : DB/WB=27/19°C Heating Indoor : DB=20°C

Outdoor : DB=35°C Outdoor : DB/WB=7/6°C

– 9 –

2-2-1. Operation Characteristic Curve

<Cooling> RAS-M14GAV-E, RAS-M14GACV-E <Heating> RAS-M14GAV-E

8

7

6

5

4

Current (A)

3

2

1

0

010203040506070

Compressor speed (rps) Compressor speed (rps)

• Conditions
Indoor : DB 27˚C/WB 19˚C
Outdoor : DB 35˚C
Air flow : High
Pipe length : 7.5m × 2
2 units operating
230V

80 90

8

7

6

• Conditions

5

4

Current (A)

3

2

1

0

0 1020304050607080 90

Indoor : DB 20˚C
Outdoor : DB 7˚C/WB 6˚C
Air flow : High
Pipe length : 7.5m × 2
2 units oper
230V

2-2-2. Capacity Variation Ratio According to Temperature

RAS-M14GAV-E, RAS-M14GACV-E
<Cooling> <Cooling>

115

• Conditions
Indoor : DB 27˚C

110

105

100

Capacity ratio (%)

Outdoor : DB 35˚C
Indoor air flow : High
Pipe length : 7.5m × 2
2 units operating

95

90

85

0

14 16 18 20 22 24

Indoor air wet bulb temp. (˚C) Outdoor temp. (˚C)

105

100

95

90

85

80

75

Capacity ratio (%)

70

65

60

55

50

32 33 3534 3736 38 39 40 41 42 43

• Conditions
Indoor : DB 27˚C/WB 19˚C
Indoor air flow : High
Pipe length : 7.5m × 2
2 units operating

– 10 –

∗ Capacity ratio : 100% = 4.0 kW

2-2-3. Operation Characteristic Curve

<Cooling> RAS-M18EAV-E, RAS-M18EACV-E <Heating> RAS-M18EAV-E

12

11

10

9

8

7

6

Current (A)

5

4

3

2

1
0

• Conditions
Indoor : DB 27˚C/WB 19˚C
Outdoor : DB 35˚C
Air flow : High
Pipe length : 7.5m × 2
2 units operating
230V

010203040506070

Compressor speed (rps) Compressor speed (rps)

80 90

12

11

10

9

8

7

6

Current (A)

5

4

3

2

1
0

0

• Conditions
Indoor : DB 20˚C
Outdoor : DB 7˚C/WB 6˚C
Air flow : High
Pipe length : 7.5m × 2
2 units oper
230V

20 40 60 80 100

120

140

2-2-4. Capacity Variation Ratio According to Temperature

RAS-M18EAV-E, RAS-M18EACV-E
<Cooling> <Cooling>

115

• Conditions
Indoor : DB 27˚C

110

105

100

Capacity ratio (%)

Outdoor : DB 35˚C
Indoor air flow : High
Pipe length : 7.5m × 2
2 units operating

95

90

85

0

14 16 18 20 22 24

Indoor air wet bulb temp. (˚C) Outdoor temp. (˚C)

105

100

95

90

85

80

75

Capacity ratio (%)

70

65

60

55

50

32 33 3534 3736 38 39 40 41 42 43

• Conditions
Indoor : DB 27˚C/WB 19˚C
Indoor air flow : High
Pipe length : 7.5m × 2
2 units operating

– 11 –

∗ Capacity ratio : 100% = 5.2 kW

3. REFRIGERANT R410A

This air conditioner adopts the new refrigerant HFC
(R410A) which does not damage the ozone layer.

The working pressure of the new refrigerant R410A
is 1.6 times higher than conventional refrigerant
(R22). The refrigerating oil is also changed in
accordance with change of refrigerant, so be careful
that water , dust, and existing refrigerant or refrigerat­ing oil are not entered in the refrigerant cycle of the
air conditioner using the new refrigerant during
installation work or servicing time.

The next section describes the precautions for air
conditioner using the new refrigerant. Conforming to
contents of the next section together with the
general cautions included in this manual, perform
the correct and safe work.

3-1. Safety During Installation/Servicing

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

1. Never use refrigerant other than R410A in an air
conditioner which is designed to operate with
R410A.

If other refrigerant than R410A is mixed, pressure
in the refrigeration cycle becomes abnormally
high, and it may cause personal injury, etc. by a
rupture.

2. Confirm the used refrigerant name, and use tools
and materials exclusive for the refrigerant R410A.

The refrigerant name R410A is indicated on the
visible place of the outdoor unit of the air condi­tioner using R410A as refrigerant. To prevent
mischarging, the diameter of the service port
differs from that of R22.

3. If a refrigeration gas leakage occurs during
installation/servicing, be sure to ventilate fully.

If the refrigerant gas comes into contact with fire,
a poisonous gas may occur.

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

5. After completion of installation work, check to
make sure that there is no refrigeration gas
leakage.

If the refrigerant gas leaks into the room, coming
into contact with fire in the fan-driven heater,
space heater, etc., a poisonous gas may occur.

6. When an air conditioning system charged with a
large volume of refrigerant is installed in a small
room, it is necessary to exercise care so that,
even when refrigerant leaks, its concentr ation
does not exceed the marginal le vel.

If the refrigerant gas leakage occurs and its
concentration exceeds the marginal le vel, an
oxygen starvation accident ma y 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 m ust be chosen and
installed. Furthermore, it is necessary to use clean
copper pipes and joints whose interior surfaces are
less affected by contaminants .

1. Copper Pipes

It is necessary to use seamless copper pipes
which are made of either copper or copper alloy
and it is desirable that the amount of residual oil
is less than 40 mg/10 m. Do not use copper
pipes having a collapsed, deformed or discolored
portion (especially on the interior surface).

Otherwise, the expansion valve or capillary tube
may become blocked with contaminants.

As an air conditioner using R410A incurs pres­sure higher than when using R22, it is necessary
to choose adequate materials.

Thicknesses of copper pipes used with R410A
are as shown in Table 3-2-1. Never use copper
pipes thinner than 0.8 mm even when it is
available on the market.

– 12 –

Table 3-2-1 Thicknesses of annealed copper pipes

Thickness (mm)

Nominal diameter

1/4
3/8
1/2
5/8

Outer diameter (mm)

6.35

9.52

12.70

15.88

R410A R22

0.80 0.80

0.80 0.80

0.80 0.80

1.00 1.00

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 sock et 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

– 13 –

d) Flare Processing

Make certain that a clamp bar and copper
pipe have been cleaned.

By means of the clamp bar, perform the flare
processing correctly.

Use either a flare tool for R410A or conven­tional flare tool.

Flare processing dimensions differ according
to the type of flare tool. When using a con­ventional flare tool, be sure to secure “dimen-
sion A” by using a gauge for size adjustment.

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

Nominal

diameter

Outer

diameter

(mm)

Thickness

(mm)

Fig. 3-2-1 Flare pr ocessing dimensions

Flare tool for R410A

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

0.8

0.8

0.8

1.0

0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5

Table 3-2-4 Dimensions related to flare processing for R22

Outer

diameter

(mm)

6.35

9.52

12.70

15.88

Thickness

(mm)

0.8

0.8

0.8

1.0

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 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

– 14 –

Flare nut width

(mm)

17
22
26
29

Table 3-2-6 Flare and flare nut dimensions for R22

Nominal

diameter

1/4
3/8
1/2
5/8
3/4

Outer diameter

(mm)

6.35

9.52

12.70

15.88

19.05

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 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 tighten-

ing torque, comply with values designated by man ufacturers. 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 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)

– 15 –

16 (160), 18 (180)

42 (420)
55 (550)
65 (650)

3-3. Tools

3-3-1. Required T ools

The service port diameter of packed v alve of the outdoor unit in the air-water heat pump using R410A is
changed to prev ent 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 follo wing three types.

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

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

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

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

Tools whose specifications are changed for R410A and their interchangeability

air-water heat pump installation

No.

1

2

3

4
5
6

7
8

9

10

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

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

Used tool

Flare tool
Copper pipe gauge for

adjusting projection
margin

Torque wrench
(For Ø12.7)

Gauge manifold
Charge hose
Vacuum pump adapter

Electronic balance for
refrigerant charging

Refrigerant cylinder
Leakage detector
Charging cylinder

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
Refrigerant charge

Gas leakage check
Refrigerant charge

Usage

Existence of
new equipment
for R410A

Yes

Yes

Yes

Yes

Yes
Yes
Yes

Yes

(Note 2)

R410A

Whether conven­tional equipment
can be used

*(Note 1)

*(Note 1)

×
×

×
×
×

×
×

Conventional air-water
heat pump installation

Whether new equipment
can be used with
conventional refrigerant

¡

*(Note 1)

×
×

¡

¡

×

¡

×

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also f or R22 are necessary
as the general tools.

1. Vacuum pump
Use vacuum pump by attaching
vacuum pump adapter.

2. Torque wrench (For Ø6.35, Ø9.52)

3. Pipe cutter

4. Reamer

5. Pipe bender

6. Level vial

7. Screwdriver (+, –)

8. Spanner or Monkey wrench

9. Hole core drill (Ø65)

10. Hexagon wrench
(Opposite side 4mm)

11 . Tape measure

12. Metal saw

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

1. Clamp meter

2. Thermometer

3. Insulation resistance tester

4. Electroscope

– 16 –

3-4. Recharging of Refrigerant

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

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

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

Connect the charge hose to the vacuum pump
adapter.

Open fully both packed valves at liquid and gas
sides.

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

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

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

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

(For refrigerant charging, see the figure below.)

1. Never charge refrigerant exceeding the specified amount.

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

3. Do not carry out additional charging.
When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the

refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the
specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high
pressure, and may cause a rupture or personal injury.

(Water heat
exchanger 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

– 17 –

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

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

It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.
Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the
cylinder upside down if cylinder is not equipped with siphon.

[ Cylinder with siphon ] [ Cylinder without siphon ]

Gauge manifold

OUTDOOR unit

Refrigerant

cylinder

Gauge manifold

OUTDOOR unit

cylinder

Refrigerant

Electronic

balance

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

3-5. Brazing of Pipes

3-5-1. Materials for Brazing

1. Silver brazing filler

Silver brazing filler is an allo y 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 o xide film and any foreign
matter on the metal surface, it assists the flow
of brazing filler .

• In the brazing process, it prevents the metal
surface from being oxidized.

• By reducing the brazing filler’s surface tension,
the brazing filler adheres better to the treated
metal.

– 18 –

2. Characteristics required for flux

• Activated temperature of flux coincides with the
brazing temperature.

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

• It is easy to remov e 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 o xide 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 prev ent 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 br azing.

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

– 19 –

4-1. Indoor Unit

RAS-B10GKVP-E
RAS-B13GKVP-E
RAS-B16GKVP-E

RAS-M10GKCVP-E
RAS-M13GKCVP-E
RAS-M16GKCVP-E

4. CONSTRUCTION VIEWS

790

Plasma pure filter

Front panel

Indoor heat exchanger

790

Air filter

215

250

60
7

53

Knockout system Knockout system

Zeolite-plus filter

53

Air ionizer

53

6054.5

60 54.5

Installation plate hanging section

53

64

Wireless remote controller

60
7

Remote controller holder

5

125.5

250

Minimum
distance
to wall

167.5
42

140 or more

3

Installation plate
hanging section

91

Lower part
hanging section

Center line
of main unit

290

Connecting pipe
(Outside length:0.4m)
Flare Ø9.52
(RAS-B16GKVP-E : Ø12.7)
(RAS-M16GKCVP-E : Ø12.7)

674

Hanging
section

450
288

47 or more

Minimum
distance
to ceilinfg

1010

Outline of
installation plate

Center line of
installation plate

790

58

19

Drain hose
(Outside length:0.54m)

Connecting pipe
(Outside length:0.45m)

163

Flare Ø6.35

WH-H03JE

25

1010

Stud bolt hole
for Ø6

Parts name of
remote controller

(Heat pump model)
WH-H03JE

(Cooling only model)

Stud bolt hole
for Ø8 to Ø10

Minimum
distance
to wall

74 or more

42

9130430491

– 20 –

4-2. Outdoor Unit

RAS-M14GAV-E, RAS-M18GAV-E (Heat pump models)
RAS-M14GACV-E, RAS-M18GACV-E (Cooling only models)

69.5 147

leg part

A

2-Ø20x88 drain long hole

145.5

320

306

290

30

Ø7 hole pitch

(Anchor bort

long hole pitch)

leg part

B

218

550

449

483 6

52

35

Fan guard

600 90

108

60

483

50032

125

108

780

Ø25 drain hole

54

30

20

257

Ø11-14U-shape hole
(for Ø8-Ø10 anchor bolt)

8-Ø7 hole
(for fixing outdoor unit)

Ø11x14 long hole
(for Ø8-Ø10 anchor bolt)

Packed valve cover

25
22

194

141

88

71

4-Ø4.5 embossment

157 79

21

145

Z

247

155

342

Charging port

Connecting pipe port
(Pipe dia. Ø6.35)

Connecting pipe port
(Pipe dia. Ø9.52)

When installing the outdoor unit,
leave open in at least two of
directions (A), (B), (C) and (D)
shown in the figure below.

Mounting dimensions of anchor bolt

2-Ø11x14U- Shape hole
(for Ø8-Ø10 anchor bolt)

Intake

320

C

100 or more

200 or more

D

50 or more

B

Outlet

600

Z

Intake

Outside line
of product

view

250 or more

A

Minimum distance
from wall

2-Ø11x14 long hole
(for Ø8-Ø10 anchor bolt)

Fin guard

Detailed leg part

320 320

Detailed leg part

R5.5

A

600

54

38

11

R15

2-Ø7 hole

Outside line
of product

11

Outside line
of product

2-Ø7 hole

R15

R5.5

38

54

600

B

– 21 –

5. WIRING DIAGRAM

5-1. Indoor Unit

RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E (Heat pump models)
RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E (Cooling only models)

Micro SW

DC MOTOR

BLK

WHI

3
345

4

YEL

5

BLU

66

CN07

(WHI)

POWER SUPPLY

DC5V

Heat

exchanger

YEL

GRN &

BRW

CN21

1
1

BLU

2
2

(RED)

CN34

FAN MOTOR

RED

)

CN10

(WHI

1
1

123
12345

WHI

YEL

YEL

YEL

123
12345

CIRCUIT

DC12V

4

4

5

YEL

5

LOUVER MOTOR

To outdoor unit

Air purifier

Electrode

High-voltage

Power suppl

12345

BLK

12345

BLK

3
21

BLOCK

INDOOR

TERMINAL

y

6
6

BR
BRW
BRW
RED

1 2 3 4

1 2 3 4

RED

WHI

3 1

BLK

Ion electrode

W

1 2 3 4

1 2 3 4

CN23

CN22

CN33

(WHI)

F01

FUSE

AC 250V

T3.15A

TER

LINE

FIL

DB01

TNR

21 43

CN08 (WHI)

(MCC-5020)

MAIN P.C. BOARD

RED

WHITE

BLACK

:::::::::

Color

Identification

RED

WHI

BLK

BLUE

BROWN

BLU

BRW

ORANGE

PURPUL

YELLOW

GRAY

ORN

PUR

YEL

GRY

PINK

GREEN&

:

:

PNK

GRN&

W

YELLO

YEL

CN01

(BLU)

BLK

– 22 –

2

1
1

2

CN03

BLK

SENSOR (TC)

HEAT EXCHANGER

)
(WHI

BLK

2

1
1

2

BLK

CN13

A)

CN100

(T

THERMO SENSOR

9876543
987654321

(WHI)

BLU

BLU

BLU

BLU

BLU

BLU

)

1234567
123456789

(WHI

Wireless Unit Assembly

BLU

2

BLU

8

1

WHI

9

10 10

MCC-899

5-2. Outdoor Unit

RAS-M14GAV-E, RAS-M18GAV-E (Heat pump models)
RAS-M14GACV-E, RAS-M18GACV-E (Cooling only models)

– 23 –

6. SPECIFICATIONS OF ELECTRICAL PARTS

6-1. Indoor Unit

RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E
RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E

No.

1

Fan motor (for indoor)

2

Room temp. sensor (TA-sensor)

3

Heat exchanger temp. sensor (TC-sensor)

4

Louver motor

Parts name

Type

MF-280-30-5R

( – )
( – )

MP24Z

DC280–340V, 30W
10kΩ at 25°C
10kΩ at 25°C
Output (Rated) 1W, 16 poles, DC12V

6-2. Outdoor Unit

RAS-M14GAV-E, RAS-M18GAV-E / RAS-M14GACV-E, RAS-M18GACV-E

∗1

∗1

No.

1

2
3

4
5

6

7

8

9

10

11

12

13
14

15

16
17
18
19
20
21
22
23
24
25
26

Parts name

SC coil (Noise filter) (L03)
SC coil (Noise filter) (L01)

DC-DC transformer
Fan motor (For outdoor)

Relay (4-way valve)
Relay (Power relay)
Discharge temp. sensor

(TD-sensor)
Outside air temp. sensor

(TO-sensor)
TGa-sensor

(Heat pump models)
TGb-sensor

(Heat pump models)
TGa-sensor

(Cooling-only models)
TGb-sensor

(Cooling-only models)
Evaporator temp. sensor

(TE-sensor)
Suction temp. sensor

(TS-sensor)
Terminal block (9P)

Fuse

Electrolytic capacitor
IGBT (Q200~Q205)
Compressor (M18)
Compressor (M14)
Compressor thermo.
Rectifier (DB01, DB02)
IGBT (Q404)
Reactor (Main)
Reactor (Sub)
Coil for P.M.V.
Coil for 4-way valve

ADR2520-R15TB or SC-20-01J-A

For protection of switching po wer source (F03)

For protection of inverter input overcurrent

For protection of power source

Model name

ADR25H-200R8TB
SWT-72 or SWT-83

ICF-140-43-4R

G5N-1A

DI12D1-O or G4A-1A-PE

(Inverter attached)

(Inverter attached)

(Inverter attached)

(Inverter attached)

(Inverter attached)

(Inverter attached)

(Inverter attached)

(Inverter attached)

—

LLQ2G761KHU

GT20J321

DA130A1F-25F
DA111A1F-20F1
US622KXTMQO

D25 X B60

GT40Q321 or GT30J121

CH-57

CH-43-Z-T

CAM-MD12TF

VHV

AC 250V, 20A, 0.15mH
AC 250V, 20A, 0.88mH
Primary side DC 280VSecondar y side:

7.5V × 1, 13V × 126.5V × 3, 16V × 1, 15V × 1
DC 140V, 43W
Coil: DC 12V, Contact: 2A, AC250V
Coil: DC 12V, Contact: 20A, AC250V

64kΩ (20°C)

10kΩ (25°C)

64kΩ (25°C)

64kΩ (25°C)

10kΩ (25°C)

10kΩ (25°C)

10kΩ (25°C)

10kΩ (25°C)
AC 250V, 20A

AC 250V, 3.15A
AC 25V, 25A
AC 250V, 6.3A
DC 400V, 760F
600V, 20A
3 phases, 4 poles, 1,100W
3 phases, 4 poles, 750W
OFF: 125 ± 4°C, ON: 90 ± 5°C
Diode: 600V, 25A
IGBT: 600V, 40A
L = 10mH, 16A
L = 10mH, 1A
DC 12V
AC 220 – 240V

Specifications

Rating

NOTE: ∗1 Heat pump models only.

– 24 –

7. REFRIGERANT CYCLE DIAGRAM

7-1. Refrigerant Cycle Diagram

RAS-B10GKVP-E, RAS-B13GKVP-E
RAS-M14GAV-E

P

Pressure measurement
Gauge attaching port

Vacuum pump connecting port

Deoxidized copper pipe
Both A and B rooms
Outer dia. : 9.52mm
Thickness : 0.8mm

4-way valve
(STF-0108Z)

To B room

*1

Tca

INDOOR UNIT

Indoor heat

exchanger

Indoor fan

Deoxidized copper pipe
Both A and B room
Outer dia. : 6.35mm
Thickness : 0.8mm

Sectional shape
of heat insulator

Muffler

TGaTGb

Muffler

TD

Compressor

DA111A1F-20F1

Ta

T1

Temp. measurement

To B room

Per 1 unit
Max. : 20m
Total : 30m
Chargeless = 20m
Charge = 20g/m
(21 to 30m)

Allowable height

difference : 10m

Allowable pipe length

Split capillary
Ø2.2 x 200

Strainer

Pulse motor
valve at liquid side
(CAM-B22YGTF-3)

Split capillary
Ø2.2 x 200

TS

Outdoor heat

exchanger

Temp. measurement

T2

Propeller fan

OUTDOOR UNIT

TO

TE

NOTE :

Refrigerant amount : 0.90kg

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

NOTE :

• The maximum pipe length of this air conditioner is 30 m. When the pipe length exceeds 20 m, the additional
charging of refrigerant, 20 g per 1m for the part of pipe exceeded 20 m is required. (Max. 200g)

– 25 –

RAS-M10GKCVP-E, RAS-M13GKCVP-E
RAS-M14GACV-E

P

Pressure measurement
Gauge attaching port

Vacuum pump connecting port

Deoxidized copper pipe
Both A and B rooms
Outer dia. : 9.52mm
Thickness : 0.8mm

4-way valve
(STF-0108Z)

To B room

*1

Tca

INDOOR UNIT

Indoor heat

exchanger

Indoor fan

Deoxidized copper pipe
Both A and B room
Outer dia. : 6.35mm
Thickness : 0.8mm

Sectional shape
of heat insulator

TGaTGb

Muffler

TD

Compressor
DA111A1F-20F1

Ta

T1

Temp. measurement

To B room

Allowable height

difference : 10m

Allowable pipe length

Split capillary
Ø2.2 x 200

Strainer

Pulse motor
valve at liquid side
(CAM-B22YGTF-3)

Split capillary
Ø2.2 x 200

Per 1 unit
Max. : 20m
Total : 30m
Chargeless = 20m
Charge = 20g/m
(21 to 30m)

TS

Outdoor heat

exchanger

Temp. measurement

T2

Propeller fan

OUTDOOR UNIT

TO

TE

NOTE :

Refrigerant amount : 0.90kg

Gas leak check position
Refrigerant flow (Cooling)

NOTE :

• The maximum pipe length of this air conditioner is 30 m. When the pipe length exceeds 20 m, the additional
charging of refrigerant, 20 g per 1m for the part of pipe exceeded 20 m is required. (Max. 200g)

– 26 –

RAS-B10GKVP-E, RAS-M13GKVP-E, RAS-M16GKVP-E
RAS-M18GAV-E

P

Pressure measurement
Gauge attaching port

Vacuum pump connecting port

Deoxidized copper pipe
Both A and B rooms
Outer dia. : 9.52mm (10,13)

:12.7mm (16)

Thickness: 0.8mm

4-way valve
(STF-0108Z)

To B room

*1

Tca

INDOOR UNIT

Indoor heat

exchanger

Indoor fan

Deoxidized copper pipe
Both A and B room
Outer dia. : 6.35mm
Thickness : 0.8mm

Sectional shape
of heat insulator

Muffler

TGaTGb

Muffler

TD

Compressor
DA111A1F-20F1

Ta

T1

Temp. measurement

To B room

Per 1 unit
Max. : 20m
Total : 30m
Chargeless = 20m
Charge = 20g/m
(21 to 30m)

Allowable height

difference : 10m

Allowable pipe length

Split capillary
Ø2.2 x 200

Strainer

Pulse motor
valve at liquid side
(CAM-B22YGTF-3)

Split capillary
Ø2.2 x 200

TS

Outdoor heat

exchanger

Temp. measurement

T2

Propeller fan

OUTDOOR UNIT

TO

TE

NOTE :

Refrigerant amount : 1.20kg

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

NOTE :

• The maximum pipe length of this air conditioner is 30 m. When the pipe length exceeds 20 m, the additional
charging of refrigerant, 20 g per 1m for the part of pipe exceeded 20 m is required. (Max. 200g)

– 27 –

RAS-M10GKCVP-E, RAS-M13GKCVP-E, RAS-M16GKCVP-E
RAS-M18GACV-E

P

Pressure measurement
Gauge attaching port

Vacuum pump connecting port

Deoxidized copper pipe
Both A and B rooms
Outer dia. : 9.52mm (10,13)

:12.7mm (16)

Thickness: 0.8mm

4-way valve
(STF-0108Z)

To B room

*1

Tca

INDOOR UNIT

Indoor heat

exchanger

Indoor fan

Deoxidized copper pipe
Both A and B room
Outer dia. : 6.35mm
Thickness : 0.8mm

Sectional shape
of heat insulator

TGaTGb

Muffler

TD

Compressor
DA111A1F-20F1

Ta

T1

Temp. measurement

To B room

Allowable height

difference : 10m

Allowable pipe length

Split capillary
Ø2.2 x 200

Strainer

Pulse motor
valve at liquid side
(CAM-B22YGTF-3)

Split capillary
Ø2.2 x 200

Per 1 unit
Max. : 20m
Total : 30m
Chargeless =20m
Charge =20g/m
(21 to 30m)

TS

Outdoor heat

exchanger

Temp. measurement

T2

Propeller fan

OUTDOOR UNIT

TO

TE

NOTE :

Refrigerant amount : 1.20kg

Gas leak check position
Refrigerant flow (Cooling)

NOTE :

• The maximum pipe length of this air conditioner is 30 m. When the pipe length exceeds 20 m, the additional
charging of refrigerant, 20 g per 1m for the part of pipe exceeded 20 m is required. (Max. 200g)

– 28 –

7-2. Operation Data

<Cooling> RAS-M14GAV-E, RAS-M14GACV-E

Temperature

condition (°C)

Indoor Outdoor

27 / 19 35 / –

No.of

operating

units

1 unit

2 units

Operating combination

(Unit)

AB

10 —
13 —
10 10
13 10

<Heating> RAS-M14GAV-E

Temperature

condition (°C)

Indoor Outdoor

20 / – 7 / 6

No.of

operating

units

1 unit

2 units

Operating combination

(Unit)

AB

10 —
13 —
10 10
13 10

<Cooling> RAS-M18GAV-E, RAS-M18GACV-E

Standard
pressure

P (MPa)

0.7 to 0.9

0.9 to 1.1

0.9 to 1.1

0.9 to 1.1

Standard
pressure

P (MPa)

2.2 to 2.4

2.5 to 2.7

1.9 to 2.1

1.9 to 2.1

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

11 to 13 43 to 45

08 to 11 47 to 49

14 to 16 47 to 49
14 to 16 47 to 49

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

36 to 38 00 to 2
41 to 43 –1 to 1
30 to 32 –1 to 1
30 to 32 –1 to 1

Indoor

fan

High
High
High
High

Indoor

fan

High
High
High
High

Outdoor

fan

700rpm
750rpm
750rpm
750rpm

Outdoor

fan

750rpm
750rpm
750rpm
750rpm

Compressor

revolution

(rps)

39
66
64
65

Compressor

revolution

(rps)

60
76
78
80

Temperature

condition (°C)

Indoor Outdoor

27 / 19 35 / –

No.of

operating

units

1 unit

2 units

<Heating> RAS-M18GAV-E

Temperature

condition (°C)

Indoor Outdoor

20 / – 7 / 6

No.of

operating

units

1 unit

2 units

Operating combination

(Unit)

AB

10 —
13 —
16 —
10 10
13 10
13 13
16 10

Operating combination

(Unit)

AB

10 —
13 —
16 —
10 10
13 10
13 13
16 10

Standard
pressure

P (MPa)

0.9 to 1.1

0.8 to 1.0

0.8 to 1.0

0.9 to 1.1

0.9 to 1.1

0.9 to 1.1

0.9 to 1.1

Standard
pressure

P (MPa)

3.2 to 3.4

3.4 to 3.6

3.4 to 3.6

2.6 to 2.8

2.6 to 2.8

2.6 to 2.8

2.6 to 2.8

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

11 to 13 41 to 43

08 to 10 45 to 47
07 to 09 47 to 49

11 to 13 48 to 50
11 to 13 48 to 50
11 to 13 48 to 50
11 to 13 48 to 50

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

44 to 46 00 to 2
50 to 53 00 to 2
51 to 53 00 to 2
37 to 39 –1 to 1
38 to 40 –1 to 1
38 to 40 –1 to 1
38 to 40 –1 to 1

Indoor

fan

High
High
High
High
High
High
High

Indoor

fan

High
High
High
High
High
High
High

Outdoor

fan

700rpm
750rpm
750rpm
750rpm
750rpm
750rpm
750rpm

Outdoor

fan

750rpm
750rpm
750rpm
750rpm
750rpm
750rpm
750rpm

Compressor

revolution

(rps)

35
58
75
71
71
71
71

Compressor

revolution

(rps)

062
081
085
093

101
101
101

NOTES :

1. Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent.

(Thermistor themometer)

2. Connecting piping condition : 7.5 m × 2 units

– 29 –

8. CONTROL BLOCK DIAGRAM

8-1. Indoor Unit

RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E

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

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

Indoor Unit Control Unit

Louver

Motor

Louver Motor
Drive Control

Indoor Fan

Motor Control

Indoor

Fan Motor

Air purifier

unit

Micro Switch

From Outdoor Unit

~

220-240V

220V

50Hz

~

60Hz

REMOTE CONTROLLER

Serial Signal Communication

(Operation Command and Information)

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

ECO

Hi-POWER

Infrared Rays, 36.7kHz

– 30 –

Air Purifier

SLEEP