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77

Indoor Unit Installation

1. 

Installing the mounting plate

• 

The 

A

 mounting plate is located at the back of the indoor unit. Remove a screw.

• 

The 

A

 mounting plate should be installed on a wall which can support the weight of the indoor unit.

1)  Temporarily secure the 

A

 mounting plate to the wall, make sure that the plate is completely level, and mark the boring points on 

the wall.

2)  Secure the 

A

 mounting plate to the wall with screws.

199

251

81

72

14.5

44

295

257

351

351

798

165

374

23

324

250.5

44.5

103

180

Recommended      mounting plate 
retention spots (9 spots in all)

Drain hose 

position

Through the wall

hole 

ɸ

65

Liquid 

pipe end

Gas pipe 

end

unit : mm

Through the wall hole 

ɸ

65

Drain hose 

position

Place a leveler on raised tab

(Bolt size : M10)

(Bolt size : M10)

A

Removed pipe 
port cover 

Mounting plate

The removed pipe port 
cover can be kept in the 
mounting plate pocket.

A

Use tape measure as shown. 
Position the end of a tape 
measure at    .

Use when securing the unit with 

screws.

Refer to “

8. Improving installation 

strength

” on page 11.

2. 

Boring a wall hole and installing wall embedded pipe

• 

For walls containing metal frame or metal board, be sure to use a wall 
embedded pipe and wall hole cover in the feed-through hole to prevent 

possible heat, electrical shock, or fi re.

• 

Be sure to caulk the gaps around the pipes with caulking material to prevent 
water leakage.
1)  Bore a feed-through hole of 65mm in the wall so it has a down slope 

toward the outside.

2)  Insert a wall embedded pipe into the hole.
3)  Insert a wall hole cover into wall pipe.
4)  After completing refrigerant piping, wiring, and drain piping, caulk pipe 

hole gap with putty. 

ɸ

65

Inside

Wall embedded pipe 

(fi eld supply)

Wall hole cover

(fi eld supply)

Wall embedded pipe 

(fi eld supply)

Outside

Caulking

(fi eld supply)

3. 

Installing inter-unit wiring

1)  Remove the screw cover and then the 

service lid.

2)  Pull out the inter-unit wire from the back 

of the indoor unit to the front. It is easier 
to pull out if bending up the wire edge in 
advance.

3)  To connect the inter-unit wire after hooking 

the unit onto the 

A

 mounting plate, 

connect the inter-unit wire as shown in the 

fi gure.

Flathead screwdriver

Screw cover

Service lid

Hang indoor unit’s 
hook here.

Lift the indoor unit 
slightly by placing it on 
packing or other similar 
materials.

Inter-unit wire

When stripping the 
ends of inter-unit 
wire in advance, 
bind right ends of 
wires with insulation 
tape.

01_EN_3P338604-1E.indd   7

2/18/2019   14:09:15

Summary of Contents for RXZ25NV1B9

Page 1: ...llation manual R32 Split series Manuel d installation S rie split R32 Manual de instalaci n Serie Split R32 Manuale d installazione Serie Multiambienti R32 R32 R32 Montaj k lavuzlar R32 Split serisi F...

Page 2: ...tions on Installation of Outdoor Unit 12 Outdoor Unit Installation 12 1 Installing outdoor unit 12 2 Drain work 12 3 Flaring the pipe end 12 4 Refrigerant piping 13 5 Refrigerant piping work 13 6 Evac...

Page 3: ...power supply circuit only Insuf ciency of power circuit capacity and improper workmanship may result in electric shocks or re Use a cable of suitable length Do not use tapped wires or an extension le...

Page 4: ...break out While following the instructions in this installation manual install drain piping to ensure proper drainage and insulate piping to prevent condensation Improper drain piping may result in in...

Page 5: ...inlet and outlet are free of obstructions 3 the unit is not in the path of direct sunlight 4 the unit is away from the source of heat or steam 5 there is no source of machine oil vapour this may shor...

Page 6: ...t 11 the air is clean and there are no sources of unpleasant odours close by NOTE Cannot be installed hanging from ceiling or stacked CAUTION When operating the air conditioner in a low outdoor ambien...

Page 7: ...he ceiling surface Do not install the trap to the G humidifying hose as much as possible The are connection should be installed outdoors Install the hose with a downward slope Do not bend the G humidi...

Page 8: ...aining metal frame or metal board be sure to use a wall embedded pipe and wall hole cover in the feed through hole to prevent possible heat electrical shock or re Be sure to caulk the gaps around the...

Page 9: ...w eld supply bands at 10mm from the joint or an elbow eld supply to ing hose from coming off Use not more than 1 elbow to ensure humidifying capacity 4 3 How to replace the drain plug and drain hose R...

Page 10: ...ide left back or left bottom piping Left side piping Left back piping Left bottom piping Remove pipe port cover Refrigerant pipe G Humidifying hose Drain hose Refrigerant pipe Remove pipe port cover G...

Page 11: ...cting to the HA system Run the HA connection cord and attach the S21 Refer to Connecting to the HA system on page 18 6 Shape the wires so that the service lid ts securely then close the service lid 1...

Page 12: ...tube eld supply 5 When connecting a rigid polyvinyl chloride pipe nominal diameter 13mm directly to the drain hose attached to the indoor unit as with embedded piping work use any commercially availab...

Page 13: ...below 2 Drain work 1 Use H drain socket for drainage 2 If the drain port is covered by a mounting base or oor surface place additional foot bases of at least 30mm in height under the outdoor unit s fe...

Page 14: ...nt piping work 5 1 Cautions on pipe handling Protect the open end of the pipe against dust and moisture All pipe bends should be as gentle as possible Use a pipe bender for bending Be sure to place a...

Page 15: ...d s low pressure valve Lo and completely close its high pressure valve Hi High pressure valve subsequently requires no operation 3 Do vacuum pumping and make sure that the compound pressure gauge read...

Page 16: ...al screws securely We recommend a athead screwdriver be used to tighten the screws The screws are packed with the terminal block 1 2 3 1 2 3 L N Power supply wire 3 core 2 5mm or more 60245 IEC 57 H05...

Page 17: ...unoperated for 60 seconds The display will return to the normal display 2 Press Select Hose length 3 Press to enter the humidifying hose length setting mode Be sure to direct the remote controller to...

Page 18: ...ling the front grille Removal method 1 Remove the front panel 2 Direct the ap and the auxiliary ap downward 3 Remove the streamer unit See Fig 1 4 Remove the screws that secure the front grille right...

Page 19: ...ite 4 Route the HA connection cord 5 Reattach the electrical wiring box cover to the original position 3 tabs 6 Reattach the front grille right streamer unit and front panel to the original positions...

Page 20: ...Pull down Dust box 2 Direct the display unit black upward and remove the air lter Display unit black Air lter 3 Install the B air purifying and deodorising lter B Air purifying and deodorising lter Ta...

Page 21: ...operly on solid bases Fall vibration noise narrower detectable range of the INTELLIGENT EYE sensor Are the air lter and the dust box attached properly Noise water leakage CLEANING FILTER operation dis...

Page 22: ...The two dimensional bar code is a manufacturing code 3P338604 1E M12B406D 1903 HT...

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