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3

English

Accessories

1

Installation manual

A

This is at the bottom of the packaging.

1

Drain socket

B

6

1

3

Drain cap (1)

C

Drain cap (2)

D

Warranty

E

Precautions for Selecting a Location

1) 

Choose a place solid enough to bear the weight and vibration of the unit, where the operating sound will not be amplified.

2) Choose a location where the air discharged from the unit or the operating sound will not cause a nuisance to the neighbors of 

the user.

3) Avoid locations, such as near bedrooms, where the operating sound may cause disturbance.
4) 

There must be sufficient space to carry the unit into and out of the site.

5) 

There must be sufficient space for air passage and no obstructions around the air inlet and the air outlet.

6) 

The site must not be prone to flammable gas leaks in the surrounding area.

7) In coastal areas or other places with a salty atmosphere or one containing sulfate gas, corrosion may shorten the life of the air 

conditioner.

8) 

Since water will flow from the drain of the outdoor unit, do not place under the unit anything which must be kept away from 

moisture.

NOTE

Cannot be installed suspended from a ceiling or stacked.

CAUTION

When operating the air conditioner in a low outdoor ambient temperature, be sure to 
follow the instructions described below.
• 

To prevent exposure to wind, install the outdoor unit with its 

suction side facing the 

wall.

• 

Never install the outdoor unit at a site where the suction side may be exposed 

directly to wind.

• 

To prevent exposure to wind, it is recommended to install a baffle plate on the air 

discharge side of the outdoor unit.

•  In heavy snow areas, select an installation site where the snow will not affect the unit.
•  If there is a likelihood of snow accumulating on the outdoor unit, attach a snow 

protection hood.

•  In high humidity areas or heavy snow areas, it is recommended to attach a drain pan 

heater to prevent ice build-up from the bottom frame.

• Construct a large canopy.
• Construct a pedestal.

Install the unit high enough off 
the ground to prevent burying 
in snow.

01_EN_3P572321-2.indd   3

2019/07/02   16:31:44

Summary of Contents for RXL18UMVJU

Page 1: ...nglish Français Español MODELS RXL18UMVJU RXL24UMVJU DAIKIN ROOM AIR CONDITIONER INSTALLATION MANUAL R410A Split Series Installation manual Manuel dinstallation Manual de instalación Manuel dinstallation ...

Page 2: ...ation hazard could occur leading to serious injury or death Do not ground units to water pipes gas pipes telephone wires or lightning rods as incomplete grounding can cause a severe shock hazard resulting in severe injury or death Additionally grounding to gas pipes could cause a gas leak and potential explosion causing severe injury or death If refrigerant gas leaks during installation ventilate ...

Page 3: ...m getting into the system b Tight R410A does not contain any chlorine does not destroy the ozone layer and does not reduce the earth s protection again harmful ultraviolet radiation R410A can contribute to the greenhouse effect if it is released Therefore take proper measures to check for the tightness of the refrigerant piping installation Read the chapter Refrigerant Piping Work and follow the p...

Page 4: ...en the life of the air conditioner 8 Since water will flow from the drain of the outdoor unit do not place under the unit anything which must be kept away from moisture NOTE Cannot be installed suspended from a ceiling or stacked CAUTION When operating the air conditioner in a low outdoor ambient temperature be sure to follow the instructions described below To prevent exposure to wind install the...

Page 5: ...3m in order to avoid noise from the outdoor unit and vibration Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used 10ft 3m O D 5 8 inch 15 9mm O D 1 2 inch 12 7mm 65 5 8ft 20m 98 1 2ft 30m Min allowable piping length Foot bolt hole centers From unit s side Allow 11 13 16 300mm of work space below the ceiling surface 9 13 16 250mm ...

Page 6: ... orientation of the outdoor unit outlet side or use the air direction adjustment grille sold separately Outdoor Unit Installation 1 Installing the outdoor unit When installing the outdoor unit refer to Precautions for Selecting a Location and the Outdoor Unit Installation Diagram If drain work is necessary follow the procedures in 2 Drain work 2 Drain work CAUTION In cold areas do not use a drain ...

Page 7: ...le Make sure that the flare nut is fitted Set exactly at the position shown below Flaring A Die A 0 0 020 inch 0 0 5mm Clutch type Flare tool for R410A 0 039 0 059 inch 1 0 1 5mm Clutch type Rigid type 0 059 0 079 inch 1 5 2 0mm Wing nut type Imperial type Conventional flare tool Cut exactly at right angles Remove burrs 4 Refrigerant piping CAUTION Use the flare nut fixed to the main unit This is to ...

Page 8: ...ain Gas side Piping size O D 5 8 inch 15 9mm O D 1 4 inch 6 4mm 1 15 16 inch 50mm or more 1 3 16 inch 30mm or more 0 039 inch 1 0mm C1220T O 0 031 inch 0 8mm C1220T O I D 5 8 13 16 inch 16 20mm I D 5 16 13 32 inch 8 10mm 13 32 inch 10mm Min Minimum bend radius Piping thickness Thermal insulation size Thermal insulation thickness Liquid side O D 1 2 inch 12 7mm 1 9 16 inch 40mm or more 0 031 inch 0...

Page 9: ...alve 7 To open the liquid stop valve turn the rod of the valve 90 counter clockwise using a hexagonal wrench Close it after 5 seconds and check for gas leakage Using soapy water check for gas leakage from the indoor unit s flare and outdoor unit s flare and valve rods After the check is complete wipe all soapy water off 8 Disconnect the charging hoses from the service port for the gas stop valve t...

Page 10: ...ound crimp style terminal Screw A Arrow view A When connecting the inter unit wires to the terminal block using a single core wire be sure to curl the end of the lead Improper work may cause heat and fire Strip wire end to this point Excessive strip length may cause electric shock or current leakage Stripping wire at terminal block Good Wrong Good Wrong Do not turn on the circuit breaker until all...

Page 11: ... and off when using facility settings Do not place humidifiers or other items which might raise the humidity in rooms where facility settings are being used A humidifier might cause dew condensation from the indoor unit outlet vent Activating the facility setting sets the indoor fan tap to the highest position Notify the user about this This function is designed for facilities such as equipment or...

Page 12: ...ation For FDMQ models Using the indoor unit s remote controller For wired remote controller 1 Set to COOL operation using the remote controller 2 Press and hold the Cancel button for 4 seconds or longer Service settings menu is displayed 3 Select Test Operation in the service settings menu and press the Menu OK button Basic screen returns and Test Operation is displayed at the bottom 4 Press the O...

Page 13: ...o stop the operation press Trial Operation and Testing When trial operation is conducted directly after the circuit breaker is turned on in some cases no air will be output for about 15 minutes in order to protect the air conditioner 1 Trial operation and testing Refer to the installation manual for the indoor unit 2 Test items Test items Symptom Check Indoor and outdoor units are installed secure...

Page 14: ...Two dimensional bar code is a manufacturing code 3P572321 2 M18B296 1907 HT ...

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