background image

11

11

12

12

Air and other foreign matter in the refrigerant circuit causes abnormal pressure rise, which 
may result in equipment damage and even injury. T

herefore, the indoor unit and tubing 

between the indoor and outdoor unit must be leak tested and evacuated to remove any 
noncondensables and moisture from the system.

1.Air purging with vacuum pump

Preparation
Check that each tube(both liquid and gas side tubes) between the indoor and outdoor units 
have been properly connected and all wiring for the test run has been completed. Remove 
the service valve caps from both the gas and the liquid side on the outdoor unit. Note that 
both the liquid and the gas side service valves on the outdoor unit are kept closed at this  stage.

Pipe length and refrigerant amount:

Air purging

Connective
pipe length

Less than 5m

More than 5m

Air purging
method

Use vacuum pump. 

Use vacuum pump. 

Additional amount of refrigerant to be charged
                           

R22: (Pipe length-5)x30g/m
R410A: (Pipe length-5)x15g/m        

Liquid side:    6.35

R22: (Pipe length-5)x60g/m
R410A: (Pipe length-5)x30g/m        

Liquid side:    9.52

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A

"

C: Putting nut on

     Remove flare nuts attached to indoor and 
     outdoor unit, then put them on pipe/tube 
      having completed burr removal.(not possible
      to put them on after flaring work) 

Flare nut

Copper tube

Fig.14

Fig.15

D: Flaring work

    Firmly hold copper pipe in a die in the 
    dimension shown in the table below.

Caution

Align the center of the pipes.
Sufficiently tighten  the flare nut with fingers, 
and then tighten it with a spanner and torque 
wrench as shown in Fig.16 & 17.

2. Tightening Connection

Excessive  torque can  break nut 
depending on installation conditions.

Indoor unit tubing

Flare nut

Pipings

Fig.16

Outer diam.

(mm)

A(mm)

Max.

Min.

6.35

1.3

0.7

9.52

1.6

1.0

12.7

1.8

1.0

12.7

16

1.8

2.2

1.0

2.0

Outer

diam.

Tightening

torque(N.cm)

Additional tightening

torque(N.cm)

6.35

12.7

16

9.52

1500

(153kgf.cm)

1600

(163kgf.cm)

3500

(357kgf.cm)

3600

(367kgf.cm)

2500

(255kgf.cm)

2600

(265kgf.cm)

4500

(459kgf.cm)

4700

(479kgf.cm)

B: Burr removal

1. Completely remove all burrs from the cut 
     cross section of pipe/tube.
2. Put the end of the copper tube/pipe in a 
    downward direction as you remove burrs in 
    order to avoid dropping burrs into the tubing.

Pipe

Reamer

Point down

Fig.13

1. Remove the electrical wiring cover from the outdoor unit by loosening the screws.
2. Connect the connective  cables to the terminals as identified with their respective matched 
     numbers on the terminal block of indoor and outdoor units.
3. Secure the cable onto the control board with the cable clamp.
4. To prevent the ingress of water, form a loop of the connective cable as illustrated in the 
     installation drawings of indoor and outdoor units.
5. Insulate unused cords (conductors) with PVC-tape. Process them so they do not touch any 
    electrical or  metal parts.

Cover

Terminal block

Screw(1~2,model 
            dependent)

Cable clamp

OUTDOOR UNIT INSTALLATION 

OUTDOOR UNIT INSTALLATION 

Connect the cable to the outdoor unit

Fig.17

Fig.18

Terminal block of outdoor unit

E: Pipe length

Model

R410A 

inverter 

split air 

condtioner

Max. Length

 of refrigerant 

pipe(m)

Max. drop

height

(m)

Capacity

(Btu/h) 

25

10

30

20

50

65

25

30

<15000

>15000~<24000

>24000~<36000

>36000~<60000

Indoor unit 

Indoor unit 

Power 
supply

Power 
supply

W 1(L)  2(N)  S

      1   2(N)   S

W   1(L)  2(N)  S     L     N

      1(L)  2(N)  S     L     N

Outdoor unit

Outdoor unit

(2)

(3)

L     N     S

L     N     S

(1)

Содержание V4MVI-09WFR/V4MVO-09

Страница 1: ...itioning system For correct use of this unit please read this manual carefully and keep it for future reference V4MVI 09WFR V4MVO 09 V4MVI 12WFR V4MVO 12 V4MVI 18WFR V4MVO 18 V4MVI 24WFR V4MVO 24 English Installation Manual Wall Mounted Unit ...

Страница 2: ...An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work it will cause electrical shock or fire 6 Use the specified cable and connect tightly and clamp the cable so that no external force will be acted on the terminal If connection or fixing is not perfect it will cause heat up or fire at the connection 7 Wiring routing m...

Страница 3: ...s Do not place any obstacles which may cause a short circuit of the discharged air Select a location which avoids causing a nuisance to neighbours from noise and air emissions from device Select a location which is sufficiently well ventilated Never cover the air inlets and outlets The location must be sufficientlyfirm for installation and the prevention of vibrations There must be no risk present...

Страница 4: ...rom rear of the indoor unit is gathered in ponding box and is piped out of room Do not put anything else in the box Fig 4 1 For the left hand and right hand piping remove the pipe cover from the side panel 2 For the right back and left back piping install the piping as shown NOTE 3 Attach the drain hose to the underside of the refrigerant pipes with adhesive viny tape 4 Wrap the refrigerant pipes ...

Страница 5: ...Max Current ofthe unit should be installed in power circuit Ensurethe air conditioner is groundedwell 4 The appliance shall beinstalled in accordance with nationalwiring regulations Do not operate your air conditioner in a wet roomsuch as a bathroom orlaundry room 5 An all poledisconnection device which has atleast 3mm clearances in allpoles and have a leakage current that may exceed10mA the resid...

Страница 6: ...ion Determine the air outlet direction where the discharged air is not blocked In the case that the installation place is exposed to strong wind such as a seaside make sure the fan operating properly by putting the unit lengthwise along the wall or using a dust or shield plates Specially in windy area install the unit to prevent the admission of wind If need suspending installation the installatio...

Страница 7: ...wn in Fig 16 17 2 Tightening Connection Excessive torque can break nut depending on installation conditions Indoor unit tubing Flare nut Pipings Fig 16 Outer diam mm A mm Max Min 6 35 1 3 0 7 9 52 1 6 1 0 12 7 1 8 1 0 12 7 16 1 8 2 2 1 0 2 0 Outer diam Tightening torque N cm Additional tightening torque N cm 6 35 12 7 16 9 52 1500 153kgf cm 1600 163kgf cm 3500 357kgf cm 3600 367kgf cm 2500 255kgf ...

Страница 8: ...lect the AUTO or COOL the unit will operate under Forced AUTOor COOL mode see User Manual for details 4 The testoperation should last about 30 minutes When relocate the unit to another place perform evacuation using vacuum pump Make sure the refrigerant added into the air conditioner is liquid form in any case Not applicable to the units adopt freon R22 Open the valve stem until it hits against th...

Отзывы: