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4.

Laying piping, hoses, and wiring

4-1. Right-side, right-back, or right-bottom piping 

1) Attach the drain hose to the underside of the refrigerant pipes with 

an adhesive vinyl tape.

2) Wrap the refrigerant pipes and drain hose together with insulation 

tape.

3) Pass the drain hose and refrigerant pipes through the wall hole, then 

set the indoor unit on the mounting plate hooks by using the 

 

markings at the top of the indoor unit as a guide.

4-2. Left-side, left-back, or left-bottom piping

1) Replace the drain plug and drain hose.
2) Attach the drain hose to the underside of the refrigerant pipes 

with adhesive vinyl tape. 

3) Be sure to connect the drain hose to the drain port in place of a 

drain plug.

4) Shape the refrigerant pipes along the pipe 

path marking on the mounting plate.

5) Pass drain hose and refrigerant pipes 

through the wall hole, then set the indoor 
unit on mounting plate hooks, using the 

 

markings at the top of indoor unit as a 
guide.

6) Pull in the inter-unit wire.
7) Connect the inter-unit pipes.

8) Wrap the refrigerant pipes and drain hose together with insulation tape as 

right figure, in case of setting the drain hose through the back of the indoor 
unit.

9) While exercising care so that the inter-unit wire do not catch indoor unit, 

press the bottom edge of indoor unit with both hands until it is firmly 
caught by the mounting plate hooks.  Secure indoor unit to the mounting 
plate with indoor unit fixing screws 3/16 × 1/2 inch (M4 × 12mm).

Right-bottom 
piping

Right-side piping

Right-back piping

Bind coolant pipe 
and drain hose 
together with 
insulating tape.

Remove pipe port cover 
here for right-side piping.

Remove pipe port cover 
here for right-bottom piping.

Mounting plate

A

Remove pipe port cover here for left-bottom piping.

Remove pipe 
port cover 
here for left-
side piping.

Left-bottom piping

Left-side 
piping

Left-back 
piping

How to set drain plug.

No gap.

Do not apply lubricating 
oil (refrigeration oil) 
when inserting.
Application of causes 
deterioration and drain 
leakage of the plug.

Insert a hexagonal wrench 3/16” (4mm).

Drain 
hose

Caulk this hole 
with putty or 
caulking material.

Bind with vinyl
tape.

 A Mounting plate

Wrap insulating tape around the 
bent portion of refrigerant pipes. 
Overlap at least half the width of 
the tape with each turn.

Refrigerant
pipes

Drain hose

Bottom frame

H  Indoor unit fixing screw 

3/16” × 1/2” (M4 × 12mm) 
(2 point)

Mounting
plate

A

Inter-unit wire

01_EN_3P276866-2D.fm  Page 9  Friday, February 18, 2011  4:07 PM

Summary of Contents for FTXN15KVJU

Page 1: ...TION MANUAL DAIKIN ROOM AIR CONDITIONER English Français Español Installation manual Manuel d installation Manual de instalación MODELS FTXN15KVJU FTXN18KVJU FTXN24KVJU 00_CV_3P276866 2D fm Page 1 Friday February 18 2011 4 21 PM ...

Page 2: ...tning rods because lightning strikes could cause a severe shock hazard resulting in severe injury or death and to gas pipes because a gas leak could result in an explosion which could lead to severe injury or death WARNING Installation should be left to the authorized dealer or another trained professional Improper installation may cause water leakage electrical shock fire or equipment damage Inst...

Page 3: ...mp down air will be sucked in when the compressor is run causing abnormally high pressure which could lead to equipment damage and personal injury Be sure to install a ground fault circuit interrupter breaker Failure to install a ground fault circuit interrupter breaker may result in electrically shocks or fire personal injury CAUTION Do not install the air conditioner where gas leakage would be e...

Page 4: ...e type of unit purchased by the customer The default settings are on the heat pump side For cooling only Outdoor unit model RKN Set the DIP switch on the cooling only side For heat pump Outdoor unit model RXN Check that the DIP switch are on the heat pump side If they are set on the cooling only side move them to the heat pump side DIP switch Heat pump Cooling only DIP switch Heat pump Cooling onl...

Page 5: ... insulation pipe to an appropriate length and wrap it with tape making sure that no gap is left in the insulation pipe s cut line Caulk pipe hole gap with putty The mounting plate should be installed on a wall which can support the weight of the indoor unit How to attach the indoor unit Hook the claws of the bottom frame to the mounting plate If the claws are difficult to hook remove the front gri...

Page 6: ...ront 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 close to ceiling CAUTION Be sure to wear protection gloves Place both hands under the center of the front grille and while pushing up pull it toward you Installation method 1 Install the front grill...

Page 7: ...NING 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 previous installations Only use parts which are delivered with the unit Never install a drier to this R410A unit in order to guarantee its lifetime The drying material may dissolve and damage the system Incomplete flarin...

Page 8: ...s that will withstand this temperature 2 Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below 3 Use separate thermal insulation pipes for gas and liquid refrigerant pipes Gas side Liquid side Gas pipe thermal insulation Liquid pipe thermal insulation O D 1 2 inch 12 7mm O D 1 4 inch 6 4mm I D 0 551 0 630 inch 14 16mm I D 0 315 0 393 inch 8 10mm Minimum b...

Page 9: ... feed through wall hole and then through the back of the indoor unit Pull them through the front side Bend the ends of tie wires upward for easier work in advance If the inter unit wire ends are to be stripped first bundle wire ends with adhesive tape 3 Press the bottom frame of the indoor unit with both hands to set it on the mounting plate hooks Make sure the wires do not catch on the edge of th...

Page 10: ...ng the drain hose through the back of the indoor unit 9 While exercising care so that the inter unit wire do not catch indoor unit press the bottom edge of indoor unit with both hands until it is firmly caught by the mounting plate hooks Secure indoor unit to the mounting plate with indoor unit fixing screws 3 16 1 2 inch M4 12mm Right bottom piping Right side piping Right back piping Bind coolant...

Page 11: ...d wires stranded wires extension cords or starburst connections as they may cause overheating electrical shock or fire Do not use locally purchased electrical parts inside the product Do not branch the power for the drain pump etc from the terminal block Doing so may cause electric shock or fire When carrying out wiring connection take care not to pull at the conduit Do not connect the power wire ...

Page 12: ...y to the drain hose attached to the indoor unit as with embedded piping work use any commercially available drain socket nominal diameter 1 2 inch 13mm as a joint The drain hose should be inclined downward No trap is permitted Do not put the end of the hose in water Indoor unit drain hose φ11 16 φ18mm Extension drain hose Heat insulation tube field supply Drain hose supplied with the indoor unit C...

Page 13: ...n its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption If the circuit breaker trips to shut off the power to the air conditioner the system will restore the original operation mode when the circuit breaker is opened again 2 Test items Test items Symptom diagnostic display on RC Check Indoor and out...

Page 14: ... 1104 HT 3P276866 2D M10B203A Two dimensional bar code is a code for manufacturing 00_CV_3P276866 2D fm Page 2 Friday February 18 2011 4 21 PM ...

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