Airwell CVOA-025N-01M22 2-Way Cassette Type Indoor Unit User Manual

User Manual for Airwell models including: CVOA-025N-01M22, CVOA-035N-01M22, CVOA-040-050-01M22, CVOA-025N-01M22 2-Way Cassette Type Indoor Unit, 2-Way Cassette Type Indoor Unit, Cassette Type Indoor Unit, Type Indoor Unit, Indoor Unit

16122000004134--CS397I-AF(R32)

SERVICE MANUAL

4 days ago — Model. Panel for CVOA to s18. Panel for CVOA to s18. Dimension mm. 1055*68*680. 1055*68*680. Packing mm. 1110*161*720. 1110*161*720. Net weight.

Aug 4, 2023 — SERVICE MANUAL. IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to ... 840/700/550.

File Info : application/pdf, 27 Pages, 9.57MB

22.AW .CVOA .025-050.R410A.SM .EN .12.13.Rev01

SERVICE MANUAL
2-Way Cassette Type Indoor Unit CVQA Range R410a English Manual
CVOA-025N-01M22 CVOA-035N-01M22 CVOA-040/050-01M22
IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.
22.AW.CVOA.025-050.R410A.SM.EN.12.13.Rev01

1. 2-Way Cassette Type Indoor Unit
1.1 Features

CVOA-025N-01M22 CVOA-035N-01M22 CVOA-040/050-01M22

Compact design: only 220mm height

15mm

220mm Ceiling

Built in high head drain pump

Ceiling antifouling design Unique antifouling design
Two way air flow Quite operation 5 models ranging from 2.2kW to 5.6kW

220mm

2-Way Cassette Type Indoor Unit

1.2 Specification

MODEL

Power supply Capacity

Ph-V-Hz kBtu/h

Capacity

Cooling

Power input

Current

Capacity

kBtu/h

Capacity

Heating Power input

Current

Heating capacity at low temp. kW

Operating current

Power consumption

Brand

Model

Type

Insulation class

Indoor motor

IP class

Power input

Power output

Capacitor

Speed (High/Middle/Low)

rpm

Brand

Indoor fan Type Quantity

a. Number of rows b. Tube pitch (a)×row pitch (b) mm

c. Fin spacing

Indoor coil d. Fin type (code)

e. Tube outside dia. and type mm

f. Coil length×height×width

g. Number of circuits

CVOA-025N-01M22 1,220~230,50/60 9.6 2.8 90 0.5 10.9 3.2 90 0.5 2.5 0.43 0.09 Match-Well YF120-30-6A2 AC B IP20 70 35 3F /450v 670/530/440 / Centrifugal 1 2 22×19.04 1.85
9.52 plate 1542.6×101.6×38.08
1

CVOA-035N-01M22 1,220~230,50/60 12.3 3.6 90 0.5 13.6 4 90 0.5 3.2 0.43 0.09 Match-Well YF120-30-6A2 AC B IP20 70 35 3F /450v 670/530/440 / Centrifugal 1 2 22×19.04 1.85
9.52 plate 1542.6×101.6×38.08
1

MODEL

CVOA-025N-01M22

CVOA-035N-01M22

Cabinet

Cabinet coating type Cabinet salt spray test duration Control box IP class
Sheet metal thickness

Hour

PS 72 IP20 0.8

Construction

Drain pan material Drain pan insulation

Drain pump option Branch outlet option Material

Standard 700mm No PS

Indoor wall

Thickness

Double or single skin

Material

Air filter

Mesh

Pressure drop

Liquid pipe

Piping dimension Gas pipe

Drain hose

Model

Dimension

Panel

Packing

Single

100

6.35

9.52

Panel for CVOA to s18

1055*68*680

1110*161*720

20 Single
PP 100
5 6.35 12.7 32 Panel for CVOA to s18 1055*68*680 1110*161*720

Net weight

Gross weight Fresh air dimension

100*70

8 100*70

Sound pressure level (H/M/L)

dB (A)

42/37/33

Sound power level (H/M/L) Standard static pressure Indoor air flow (H/M/L) Dimension (W*H*D) Packing (W*H*D)

dB (A) Pa m3/h mm mm

55/50/46 0
840/700/550 817*220*620 1015*278*695

Net weight

Gross weight

Nominal condition: indoor temperature (cooling): 27DB (°C)/19WB (°C), indoor temperature (heating): 20DB (°C)

Outdoor temperature (cooling): 35DB (°C)/24WB (°C), outdoor temperature (heating): 7DB (°C)/6WB (°C)

The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated

sound intensity meter. It is a sound pressure noise level.

2-Way Cassette Type Indoor Unit

MODEL

Power supply

Capacity

Cooling

Capacity Power input

Current

Capacity

Heating

Power input

Current

Heating capacity at low temp.

Operating current

Power consumption

Brand

Model

Type

Insulation class

Indoor motor IP class

Power input

Power output

Capacitor

Speed (High/Middle/Low)

Brand

Indoor fan Type

Quantity

a. Number of rows

b. Tube pitch (a)×row pitch (b)

c. Fin spacing

Indoor coil d. Fin type (code)

e. Tube outside dia. and type

f. Coil length×height×width

g. Number of circuits

Ph-V-Hz kBtu/h
kW W A kBtu/h kW W A kW A kW
W W F rpm
mm mm
mm mm

CVOA-040N-01M22
1,220~230,50/60 15.4 4.5 110 0.62 17.1 5 110 0.62 4 0.56 0.11
Match-Well YF120-30-6A2
AC B IP20 70 35 3F /450v 670/530/440 / Centrifugal 1 2 21×13.2 1.5 Hydrophilic aluminum 6.35 Inner groove tube 1581×105.6×39.6 4

CVOA-050N-01M22
1,220~230,50/60 19.1 5.6 110 0.62 21.5 6.3 110 0.62 5 0.56 0.11
Match-Well YF120-30-6A2
AC B IP20 70 35 3F /450v 670/530/440 / Centrifugal 1 2 21×13.2 1.5 Hydrophilic aluminum 6.35 Inner groove tube 1581×105.6×39.6 4

MODEL

CVOA-040N-01M22

CVOA-050N-01M22

Cabinet

Cabinet coating type Cabinet salt spray test duration Control box IP class

Hour

PS 72 IP20

Sheet metal thickness

0.8

Drain pan material

Construction

Drain pan insulation

Drain pump option

Standard 700mm

Branch outlet option

Material

Indoor wall

Thickness

Double or single skin

Single

Material

Air filter

Mesh

100

Pressure drop

Liquid pipe

6.35

Piping dimension Gas pipe

12.7

Drain hose

Model

Panel for CVOA to s18

Dimension

1055*68*680

Panel

Packing

1110*161*720

Net weight

Gross weight

Fresh air dimension

100*70

Sound pressure level (H/M/L)

dB (A)

44/39/34

Sound power level (H/M/L)

dB (A)

57/52/47

Standard static pressure Indoor air flow (H/M/L)

Pa m3/h

0 840/700/550

Dimension (W*H*D)

817*220*620

Packing (W*H*D)

1015*278*695

Net weight

Gross weight

Nominal condition: indoor temperature (cooling): 27DB (°C)/19WB (°C), indoor temperature (heating): 20DB (°C)

Outdoor temperature (cooling): 35DB (°C)/24WB (°C), outdoor temperature (heating): 7DB (°C)/6WB (°C)

The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated

sound intensity meter. It is a sound pressure noise level.

1.3 Dimension

Ceiling 1015

Hanging bolt distance 885

468

417

Control box Panel center

Hanging bolt 446

Ceiling 60

Code
1 2 3 4 5 6 7 8 9

Name
Hanging bolt Pothook Fresh air entrance Exhaust outlet : 4 Liquid pipe connect hole Gas pipe connect hole Drain pipe connect hole Natural drain Power line entrance

140 100 100 161 220 280 750

817
240 200 130

240

200

297~325

130

16-4 Tapping screw hole

460

178 124

Drain pipe max. hoisting height:70mm

278

264

210

620 405 364

310

230

120 95
47 64 38 98 227 207 148 120

1.4 Piping diagram

Liquid pipe Gas pipe

EEV

Filter

TC1

TC2 Fan
TA

Indoor heat exchanger

1.5 Wiring diagram
43 21 43 21
75

CVOA-XXXN-01M22 PCB code: 0151800161B

Symbol Description

FM Fan Motor

RC Running Capacitor TR Transformer

TA Ambient Temperature Sensor

TC1 TC2 TW1

Gas Pipe Temperature Sensor Liquid Pipe Temperature Sensor Terminal block (Power)

TW2 Terminal block (Control)

TC1

PMV Electronic Expansion Valve

FS Float Switch

PM Pump Motor

TC2

SM Swing Motor

FS RK

P Q

CN15
B 12

CN13 1

CN16 1 2

12 R 1 2 3

W 12

PMV

CN35

CN10

1 2 3 45
W 1 2 3 45

1 2 3 45 6
R 1 2 3 45 6

CN11
1 2 3 45
BL 1 2 3 4 5

11 22
CN17 W

CN21 CN31

BL 1 2 3 4 5 CN11-1

11 22 33
CN18 G
11 22 33
CN19 B
11
22
CN20 G

LED2

LED5

LED1
A B C BL A B C CN22-1

CN36 1 2 W 12

A B C CN22 A B C BL

CN24 1 2 3 4 W 1 234
TR2

PCB
1 2 CN3 1 2W
TR1

SW08 SW03 SW01
FUSE
250VACT5A
CH3 CH1 CH4 CH2

CN8 FM

77 55

Y/G

PM RC

22
~ BL CN4

SM
11 22
B CN5

R:RED BR:BROWN OR:ORANGE BL:BLUE G:GREEN GR:GRAY
Y:YELLOW W:WHITE B:BLACK Y/G:YELLOW/GREEN

WB R
TW2 A B C
A BC
Wired Controller

Y/G

TW1

BL R

Transmission (To O.D unit)

220-240VAC50/60Hz To Power Supply

CVOA-XXXN-01M22

PCB code: 0010451181A

4321 4 321
76

Symbol Description FM Fan Motor RC Running Capacitor TR Transformer
TA Ambient Temperature Sensor
TC1 Gas Pipe Temperature Sensor Liquid Pipe Temperature
TC2 Sensor TW1 Terminal block (Power) TW2 Terminal block (Control) PMV Electronic Expansion Valve
FS Float Switch
PM Pump Motor SM Swing Motor PG Plastic Motor

B CN16 G

Y CN13 1 3 2 12 3

CN17 Y

TC1

CN18

33
G

TC2 1 1

22 33

CN19 B

10
9 8 7 6 5 4 3 2 1
CN21 W

LED3 LED4
W
LED5 CN30

W 5 5
PCB

R:RED BR:BROWN OR:ORANGE

TA 2 2 LED1 LED2

G CN20

123 123

CN22

BL 1 2
1 2

W1 2 3 4
1234

CN23 CN24

BL:BLUE

G:GREEN GR:GRAY Y:YELLOW

TW2 P Q A B C

TR1

W:WHITE

B:BLACK Y/G:YELLOW/GREEN

Transmission A B C (To O.D unit)

1. is terminal block, the words on it

Wired Remote Controller

are the sequence number

2. is printed circuit board

PMV

6 6

W 9

SW08 SW07

77 5 5

Y/G

33 11

W 531
531
CN1

W SM
33 11

~ 2 2 CN4 BL

W 31

CN3

Y/G
TW1 L N
1PH.220V~.50/60Hz TO POWER SUPPLY

1.6 Electric characteristics

Unit

Model

Phase Voltage

CVOA-025N-01M22 1

220

CVOA-035N-01M22 1

220

CVOA-040N-01M22 1

220

CVOA-050N-01M22 1

220

FQY

Volt. range

50/60 198~242

Power supply

MCA
0.5 0.5 0.5 0.5

MFA
1.6 1.6 1.6 1.6

Indoor fan motor Power input (W)

Output (W) 35
35
35
35

FLA Cooling Heating

0.4

0.4 110 110

Symbols: MCA: Min. circuit amps (A) MFA: Max. fuse amps of circuit breaker Output: Fan motor rated output (w) FLA: Full load amps (A)
Note:
1. Voltage range The units are applicable for the electrical systems where voltage supplied to unit is in the range.
2. Maximum allowable voltage unbalance between phases is 2%. 3. MCA=1.25*FLA MFA4*FLA 4. Power supply uses the circuit breaker.

1.7 Air velocity and temperature distribution

a. Cooling / Air velocity distribution Cooling Blowy angle: 40 Air Velocity distribution
2.7m

1.5m/s 1.0m/s
0.5m/s

2m
1.5m/s
1.0m/s
1m
0.5m/s

b. Cooling / Temperature distribution
Cooling Blowy angle: 40 Temperature distribution

2.7m

22 25

c. Heating / Air velocity distribution Heating Blowy angle: 70 Air velocity distribution
2.7m

1.5m/s

1.0m/s

1.0m/s 1m

0.5m/s

d. Heating / Temperature distribution
Heating Blowy angle: 70 Temperature distribution

2.7m

27 25 22

2m 27
25 1m
22

1.8 Sound pressure level

1) Testing illustrate:

1.5M

2) Testing condition: a: Unit running in the normal condition b: Test in the semi-anechoic chamber c: Noise level varies from the actual factors
such as room structure, etc.

CVOA-025N-01M22 CVOA-035N-01M22
70
60
50
40
30
20 10
63 125 250 500 1000 2000 4000 8000

CVOA-040/050N-01M22
70 60 50 40 30 20 10
63 125 250 500 1000 2000 4000 8000

1.9 Installation
1.9.1 Installation procedures
Before installation Make correct operation according to the manual when installation. Please confirm the below information: If operation plan has been discussed Model, power supply specs Pipe, wire, and the other parts Accessories (inside the unit, take it out after opening the filter)
Selection of installation location for the indoor unit Indoor units should be installed in places with the environment of even circulation of cool and warm blows. The following places should be avoided. Places with high salinity (beach), high sulfureted gas (such as the thermal spring regions where copper tubes
and soft soldering are easy to be eroded), much oil (including mechanical oil) and steam; places where organic substance solvent is used; where special spray is frequently used; Places where machines generate the high frequency electromagnetic wave (abnormal condition will appear in the control system); Places where there are high humidity exists near the door or windows (dew is easily formed).

WARNING
Protect the machine from gales or earthquake, make the installation according to the regulations. Improper installation will cause accidents due to the overturn of the air conditioner.

Select the following places to install indoor unit (1) The places where cool or warm air can ventilate smoothly. If the place is higher
than 3m, the warm air will manifold around the ceiling. A circulator is necessary for this case.
(2) The places where the wires and pipes are easy to outdoor.
(3) The places where the condensate water can be drained out smoothly and the
drainage pipe can lean appropriately.
(4) The places where there is no obstacle at air inlet or outlet. And the places which
will not alarm or not be in short circuit.
(5) The place where the sunshine will not shoot directly. (6) The places around which the frosting temperature is below 28 and the relative
humidity is below 80% (when the unit is installed at place with high temperature, pay main attention to frosting issues, for example the unit can be equipped with heat insulation). Take it into account that if the place is strong enough to support the unit. If not, please strengthen it with reinforced plate and horizontal plate.

Suspension installation Suspend the bolt with 4 M10 or W3/8. Fasten the bolt to make every bolt bear the load of 50kg. The suspension bolt should be about 95mm extending outward of ceiling.
When the ceiling exists already
1. Open a hole on the ceiling, and set the dimension appropriate for the installation. 2. Fasten the bolt (purchased locally) on the correct position. 3. After suspending indoor unit, install the template paper on the position of panel with 4 bolts, then adjust the
height according to the below procedure. (The length from ceiling to unit bottom is 07-18K: 63mm)4. Check if the unit is horizontal with a level. If not, the unit will leak water or float switch works badly. 5. Fix the unit after levelness adjustment.

Install ceiling later
1. Install the unit block and template paper according to step 2-4. 2. Cut along external boundary line in the ceiling. 3. Fasten the unit after inspecting installation height and level.

A Gas pipe connector

B Liquid pipe connector

C1 Drainage pipe connector

VP25

C2 Natural drainage outlet

VP20

D Power inlet

E Suspension bolts

M10 or M3/8

F Fresh air inlet

G Air supply branch pipe connector

Model CVOA-025~50N-01M22

10 11

1015 885 468 417 817 460 178 161 220 207 405

Model

12 13

15 16 17

CVOA-025~50N-01M22 148 227 98 91 47 120 56 74 124 130

Refrigerant pipe Please refer to accompanied manual to know refrigerant pipe plumbing.

Gas side and liquid side should take measure of heat insulation.
Inspect if gas leaks, joints heat insulation materials have to be used to connect refrigerant piping extender mouth, then, use strap to tie two parts.

Drainage pipe Install attached flexible hose to adjust when installing
panel. Bending or dragging intentionally will lead to leakage. Insert attached drainage flexible hose into fine mouth end of drainage, and then fix it with pipe clamp. Bind VP-25 joint (purchase in local place) to drainage flexible hose (Rigid PVC terminal) before suspending, then, bind VP-25 to this joint. Make sure binder does not flow into drainage pipe, otherwise, the pipe will be damaged after binder dries.
PPipe cover

U D
S C
PiPpe cover

VP25

R D
D

Make drainage slope down (slope is 1/50-1/100), and any part of drainage upheaval or cave in.

N
N C

S
H D

Attention: make sure indoor unit side does not bear any pressure, and fix drainage near unit. Drainage can be normal rigid polyvinyl chloride pipe VP-25. When laying drainage pipe for multi units. As viewed in the picture, set main drainage 100mm under each indoor
unit draining mouth, and the main pipe should be more than VP-30 thick plastic pipe.
A

D
Take insulation measures to the following two parts of drainage pipe to avoid leakage. Drain pipe fitting location: After drainage test, install small tube shield onto drain pipe fitting and then use bigger tube shield to cover smaller one and part of drainage pipe. And then use bandage to tie them. Rigid polyvinyl chloride pipe of indoor unit.
Do not set air vent in the drain pipe. Exit height of drain pipe should be 750mm higher than ceiling, so if facing any barrier while laying drain pipe, you
can use bending pipe or other attachments to avoid, and on this condition, if the drain pipe from unit to pipe is too long, the water flow will increase when air conditioner is off.
84

VP25 joint (purchase in local place)

Do not lay drain pipe at the place that can cause peculiar smell gas. Do not put drain pipe directly into sewer that can cause harmful gas.

In case of gravity drainage

Remove the rubber plug and insulation from the gravity

drainage port.

Connect the drain hose (VP-20) using the gravity drainage

connecting tube (option) and secure firmly with a clamp.

(If the drain tube is directly connected with the gravity

drainage port, the drain pan could not be removed.)

Cut off drainage motor (blue 2P) (If the unit is used with

this connector being connected, the drainage will go out

through the standard drain connecting port, causing leaks.)

Drain test

After installation of drain pipe, make sure that drain system work in good condition and no water leakage from joint and drain pan.

Do drain test even if installation of heating season.

For new building cases, make sure to complete the test before

hanging the ceiling.

1. Pour water of about 1000cc into the drain pan in the indoor unit by pump so as not to get the electrical component wet.
2. At the drain socket (transparent), it is possible to check if the water is drained out properly. Confirm that the water is properly drained out while the drain motor is operating.
3. Unplug the drain plug on the indoor unit to remove remaining water after the test, and re-plug it.
Attention: Do not make water splash.

H I R C
D

I
Drain pump forceful running method
Turn on indoor unit, drain pump will continuously run. Turn off after test is over. (If electrical work has not done, connect T style Y-shaped connector to form inlet, and
then check if it leaks.)

Installation of pane
Bolt used should be close to panel
Air supply outlet is easy to be damaged, please pay attention to it when working.

1. Use drawing block to confirm the height of unit and size of ceiling. Remove it before installing panel, as well as air return panel.
E

R I

2. Screw 4 installation panels 5mm in unit panel. 3. Fix the panel. 4. Tighten the screws. 5. Link the joint of louver motor (white, 2P)(unit without louver automatically running function does not need this step.)

6. If you want to use the remote controller, you need to prepare an additional remote control receiver (REC01), the ten pin white connector is for remote controller connect the port CN21 on PCB

7. Use remote control to make sure the connection is OK and then cut off the power for 10 seconds. restart.

Tubing Permissible Length & Height Difference Please refer to the attached manual of outdoor units.
Tubing Materials & Specifications

Model

CVOA-025N-01M22

CVOA-035~050N-01M22

Tubing Size (mm) Tubing Material

Gas pipe

9.52

12.7

Liquid pipe

6.35

Phosphor deoxy bronze seamless pipe (TP2) for air conditioner

Refrigerant Filling Amount Add the refrigerant according to the installation instruction of outdoor unit. The addition of R410A refrigerant must be performed with a measure gage to ensure the specified amount while compressor failure can be caused by filling too much or little refrigerant.
86

Connecting Procedures of Refrigerant Tubing

Proceed the flare tube connecting operation to connect all the refrigerant tubes.

Dual wrenches must be used in the connection of indoor unit tubing.
Mounting torque refers to the right table

Outer diameter Mounting of tubing (mm) torque (N.m)

6.35

11.8 (1.2kgf.m)

Increase mounting torque (N.m)
13.7 (1.4kgf.m)

9.52

24.5 (2.5kgf.m) 29.4 (3.0kgf.m)

12.7

49.0 (5.0kgf.m) 53.9 (5.5kgf.m)

15.88 78.4 (8.0kgf.m) 98.0 (10.0kgf.m)

Cutting and Enlarging Cutting or enlarging pipes should be proceeded by installation personnel according to the operating criterion if the tube is too long or flare opening is broken.
Vacuumizing Vacuumize from the stop valve of outdoor units with vacuum pump. Refrigerant sealed in indoor machine is not allowed to use for vacuumization.
Open All Valves Open all the valves of outdoor units. [NB: oil balancing stop valve must be shut up completely when connected one master unit.]

Connecting
1. Connecting circular terminals: The connecting method of circular terminal is shown in the Fig. Take off the screw, connect it to the terminal tier after heading it through the ring at the end of the lead and then tighten it. 2. Connecting straight terminals: The connection methods for the circular terminals are shown as follows: loosen the screw before putting the line terminal into the terminal tier, tighten the screw and confirm it has been clamped by pulling the line gently. 3. Pressing connecting line: After connecting line is completed, press the connecting line with clips which should press on the protective sleeve of the connecting line.

Checkup for Air Leakage

Check if there is any leakage at the connecting part

and bonnet with hydrophone or soapsuds.

1.9.2 Electrical wiring
WARNING
Electrical construction should be made with specific mains circuit by the qualified personnel according to the installation instruction. Electric shock and fire may be caused if the capacity of power supply is not sufficient.
During arranging the wiring layout, specified cables should be used as the mains line, which accords with the local regulations on wiring. Connecting and fastening should be performed reliably to avoid the external force of cables from transmitting to the terminals. Improper connection or fastness may lead to burning or fire accidents.
There must be the ground connection according to the criterion. Unreliable grounding may cause electrical shocks. Do not connect the grounding line to the gas pipe, water pipe, lightening rod and telephone line.

ATTENTION
Only copper wire can be used. Breaker for electric leakage should be provided, or electric shock may occur. The wiring of the mains line is of Y type. The power plug L should be connected to the live wire and plug N
connected to null wire while should be connected to the ground wire. For the type with auxiliary electrically heating function, the live wire and the null wire should not be misconnected, or the surface of electrical heating body will be electrified. If the power line is damaged, replace it by the professional personnel of the manufacturer or service center.
The power line of indoor units should be arranged according to the installation instruction of indoor units. The electrical wiring should be out of contact with the high-temperature sections of tubing as to avoid melting the
insulating layer of cables, which may cause accidents. After connected to the terminal tier, the tubing should be curved into be a U-type elbow and fastened with the
pressing clip.
Controller wiring and refrigerant tubing can be arranged and fixed together. The machine can't be powered on before electrical operation. Maintenance should be done while the power is
shut down.
Seal the thread hole with heat insulating materials to avoid condensation. Signal line and power line are separately independent, which can't share one line. [Note: the power line and
signal line are provided by users. Parameters for power lines are shown as below: 3×1.0-1.5) mm2; parameters for signal line: 2×0.75-1.25)mm2( shielded line)] 5 butt lines (1.5mm) are equipped in the machine before delivery, which are used in connection between the valve box and the electrical system of the machine. The detailed connection is displayed in the circuit diagram.

Supply Wiring Drawing

Indoor units and outdoor units should be connected to the power source separately. Indoor units must share one single electrical source, but its capacity and specifications should be calculated. Indoor & outdoor units should be equipped with the power leakage breaker and the overflow breaker.

Signal Wiring Drawing
Outdoor 1

Outdoor 2

Outdoor 3

Indoor 1

Indoor 2

C Indoor 3

Indoor 4

Indoor 5

Outdoor units are of parallel connection via three lines with polarity. The master unit, central control and all indoor units are of parallel connection via two lines without polarity. The singal line between wired controller and indoor units are polarity There are three connecting ways between wired controller and indoor units: A. One wired controller controls one indoor unit, the wired controller connects with the ABC terminal of indoor unit.
Indoor
Wired controller
B. Two wired controllers control one indoor unit. Either of the wired controls can be set to be the master wired controller while the other is set to be the slave wired controller.
Indoor

Wired

controller controller

Master and slave controller setting method for RWV05, other controllers' setting method please refer to the controller manual

No. SW1-1

Type Select the master or the slave controller

State of switch ON OFF

Function description Slave controller Master controller

C. One wired controller controls multiple units 0151800161B PCB
CN22-1

Note: 1. Plug the wired controller terminal to the CN22-1 terminal of master unit which wired address is 0, the slave unit only connects BC terminal. 2. Wired address setting

SW01-2~ Wired control SW01-4 address

OFF OFF OFF OFF ON ON ON ON

3. One controller can Max. control 8 indoor units. 4. Hand-in-hand connection method
5. The singal line is polarity

OFF OFF ON ON OFF OFF ON ON

OFF ON OFF ON OFF ON OFF ON

0# master unit (default) 1# slave unit 2# slave unit 3# slave unit 4# slave unit 5# slave unit 6# slave unit 7# slave unit

The combination of multiple indoor units can be controlled by wired controller or remote controller. Switching mode of Wired control master unit/ Wired control slave unit/ remote control types can be used for switching over

Setting

Socket/dip

mode Wired control master unit Wired control slave unit

switch

SW01-[2][3][4]

All OFF

[0][0][1]

CN21 socket

Null

Terminal block (control)

A,B,C connect with wired controller

B,C connect with wired controller

Remote control
All OFF Connect to remote receiver
A,B,C null

Note:
The wiring for the power line of indoor unit, the wiring between indoor and outdoor units as well as the wiring between indoor units:

Items
Total current of indoor units (A)
<7 7 and <11 11 and <16 16 and <22 22 and <27

Cross section (mm2)
2.5 4 6 8 10

Length (m)

Rated Rated current of residual circuit

current of

breaker (A)

Cross sectional area of signal Line

overflow Ground fault Interrupter (mA) Outdoor

Indoor

breaker (A)

Response time (S)

-indoor (mm2) -indoor (mm2)

10 A, 30 mA, 0.1S or below

16 A, 30 mA, 0.1S or below

20 A, 30 mA, 0.1S or below

2 cores×(0.75-2.0) mm2 shielded line

32 A, 30 mA, 0.1S or below

The electrical power line and signal lines must be fastened tightly. Every indoor unit must have the ground connection. The power line should be enlarged if it exceeds the permissible length. Shielded lays of all the indoor and outdoor units should be connected together, with the shielded
lay at the side of signal lines of outdoor units grounded at one point. It is not permissible if the whole length of signal line exceeds 1000m.
Signal wiring of wired controller

Length of signal line (m) 250

Wiring dimensions 0.75mm2×3 core shielded line

The shielding lay of the signal line must be grounded at one end. The total length of the signal line shall not be more than 250m.

1.9.3 Test run
Before Test Run
Before switching it on, test the supply terminal tier (L, N terminals) and grounding points with 500V megaohm meter and check if the resistance is above 1M. It can't be operated if it is below 1M.
Connect it to the power supply of outdoor units to energize the heating belt of the compressor. To protect the compressor at startup, power it on 12 hours prior to the operation.
Check if the arrangements of the drainpipe and connection line are correct. The drainpipe shall be placed at the lower part while the connection line placed at the upper part. Heat preservation measures should be taken such as winding the drainpipe esp. in the indoor units with heating
insulating materials. The drain pipe should be made a slope type to avoid protruding at the upper part and concaving at the lower part
on the way. Checkup of Installation.

Check if the mains voltage is matching Check if there is air leakage at the piping joints Check if the connections of mains power and indoor & outdoor units are correct
Check if the serial numbers of terminals are matching

Check if the installation place meets the requirement Check if there is too much noise Check if the connecting line is fastened Check if the connectors for tubing are heat insulated Check if the water is drained to the outside Check if the indoor units are positioned

Ways of Test Run
Do ask the installation personnel to make a test run. Take the testing procedures according to the manual and check if the temperature regulator works properly. When the machine fails to start due to the room temperature, the following procedures can be taken to do the compulsive running. The function is not provided for the type with remote control. Set the wired controller to cooling/heating mode, press "ON/ OFF" button for 5 seconds to enter into the
compulsive cooling/heating mode. Repress "ON/ OFF" button to quit the compulsive running and stop the operation of the air conditioner.

WARNING : The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. ATTENTION : Le design et les données techniques sont donnés à titre indicatif et peuvent être modifiés sans préavis.
AIRWELL RESIDENTIAL SAS 10,Rue du Fort de Saint Cyr, 78180 Montigny le Bretonneux - France www.airwell.com
222.AW.CVOA.025-050.R410A.SM.EN.12.13.Rev01

References

Adobe Illustrator(R) 16.0