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Indoor Unit Installation

1.

Installing the mounting plate

• The mounting plate should be installed on a wall which can support the weight of the indoor unit.
1) Temporarily secure the mounting plate to the wall, make sure that the panel is completely level, and mark the boring points 

on the wall.

2) Secure the mounting plate to the wall with screws.

Recommended mounting plate retention spots and dimensions

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 cover in the feed-through hole to prevent possible 
heat, electrical shock, or fire.

• 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 pipe into the hole.
3) Insert a wall cover into wall pipe.
4) After completing refrigerant piping, wiring, and drain piping, caulk pipe hole gap with putty.

3.

Installing the indoor unit

• In the case of bending or curing refrigerant pipes, keep the following 

precautions in mind.
Abnormal sound may be generated if improper work is conducted.

1) Do not strongly press the refrigerant pipes onto the bottom frame.
2) Do not strongly press the refrigerant pipes on the front grille, either.

209

241

191.5

66

106

176

150

384

900

344

75.5

48

250

48

298

50

50

Use a tape measure 
as shown.

unit: mm

Removed pipe 
port cover 

Recommended mounting plate 
retention spots (5 spots in all)

Place a leveler 
on raised tab.

Drain hose position

Keep here the piece cut out 
from the unit for piping

Liquid pipe end

Gas pipe end

Mounting plate

* The removed pipe port cover can be 

kept in the mounting plate pocket.

Position the end of 
the tape measure at    .

Through-
the-wall 
hole  65mm

Inside

Outside

Caulking

Wall embedded pipe 
(field supply)

Wall hole cover
(field supply)

Wall embedded pipe 
(field supply)

65

Summary of Contents for FTXLS25K3V1B

Page 1: ...DAIKIN ROOM AIR CONDITIONER INSTALLATION MANUAL R410A Split Series MODELS FTXLS25K3V1B FTXLS35K3V1B DAIKIN...

Page 2: ......

Page 3: ...ivamente por B de acuerdo con el Certificado C 06 Nota delineato nel A e giudicato positivamente da B secondo il Certificato C 07 A B C 08 Nota tal como estabelecido em A e com o parecer positivo de B...

Page 4: ...cause overheating electric shocks or fire Make sure that all wiring is secured the specified wires are used and that there is no strain on the terminal connections or wires Improper connections or se...

Page 5: ...emote controller signals are properly received by the indoor unit within 7m CAUTION Do not install the air conditioner at any place where there is a danger of flammable gas leakage In the event of a g...

Page 6: ...grille there are 3 upper hooks Lightly pull the front grille toward you with one hand and push down on the hooks with the fingers of your other hand When there is no work space because the unit is cl...

Page 7: ...move the front grille Opening the service lid The service lid is removable 1 Remove the service lid screw 2 Pull out the service lid diagonally down in the direction of the arrow 3 Pull down The mount...

Page 8: ...o the hole 3 Insert a wall cover into wall pipe 4 After completing refrigerant piping wiring and drain piping caulk pipe hole gap with putty 3 Installing the indoor unit In the case of bending or curi...

Page 9: ...late hooks by using the markings at the top of the indoor unit as a guide 4 Open the front panel then open the service lid Refer to preparation before installation 5 Pass the inter unit wire from the...

Page 10: ...onto the left side 1 Remove the insulation fixing screw on the right and remove the drain hose 2 Remove the drain plug on the left side and attach it to the right side 3 Insert the drain hose and tig...

Page 11: ...R T THERMISTOR DS DIPSWITCH RC RECEIVER E H HEATER S C LIMITSWITCH F U FU FORCHARACTERISTICS REFERTOPCBINSIDEYOURUNIT FUSE S L FLOATSWITCH FG CONNECTOR FRAMEGROUND S NPH PRESSURESENSOR HIGH H HARNESS...

Page 12: ...nnect the power wire to the indoor unit Doing so may cause electric shock or fire 5 When connecting to an HA system Wired remote controller central remote controller etc 1 Remove the metal plate elect...

Page 13: ...trical wiring covers as shown below 1 Lean the metal plate electrical wiring cover as shown in the figure and attach tab 1 on the lower side to the electrical wiring box 2 Attach tab 2 on the lower si...

Page 14: ...properly made WARNING Do not use mineral oil on flared part Prevent mineral oil from getting into the system as this would reduce the lifetime of the units Never use piping which has been used for pre...

Page 15: ...frigerant gas pipe s surface temperature reaches 110 C max Choose heat insulation materials that will withstand this temperature 2 Be sure to insulate both the gas and liquid piping and to provide ins...

Page 16: ...stem will restore the original operation mode when the circuit breaker is opened again 2 Test items If the is not displayed make sure not to cut the switching jumper J8 for cooling operation when cutt...

Page 17: ......

Page 18: ...3P377527 3D 2017 03 Copyright 2015 Daikin...

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