Installation manual
1
Contents
Page
Safety precautions ............................................................................ 1
Accessories....................................................................................... 2
Precautions for selecting the location ............................................... 2
Indoor/outdoor unit installation drawings........................................... 3
Installation ......................................................................................... 3
Connections (connection port)................................................................... 3
Precautions on installation ................................................................ 4
Outdoor unit installation guidelines ................................................... 4
Selecting a location for installation of the indoor units ...................... 4
Refrigerant piping work ..................................................................... 4
Installing the outdoor unit........................................................................... 4
Method for installing drain piping ............................................................... 4
Refrigerant piping ...................................................................................... 5
Purging air and checking gas leakage....................................................... 5
Charging refrigerant................................................................................... 6
Important information regarding the refrigerant used ................................ 6
Charging additional refrigerant .................................................................. 6
Refrigerant piping work.............................................................................. 6
Flaring the pipe end ................................................................................... 7
How to use reducers ......................................................................... 7
Pump down operation ....................................................................... 8
Forced operation........................................................................................ 8
Wiring ................................................................................................ 8
Priority-room setting .......................................................................... 9
Priority-room setting function ..................................................................... 9
Night quiet mode setting ................................................................. 10
Night quiet mode function ........................................................................ 10
COOL/HEAT mode lock <S15>....................................................... 10
Test run and final check .................................................................. 10
Wiring error check.................................................................................... 10
Test run and final check ............................................................................11
Items to check...........................................................................................11
Disposal requirements .....................................................................11
The English text is the original instruction. Other languages are
translations of the original instructions.
Safety precautions
This manual classifies the precautions into WARNING and
CAUTION. Be sure to follow all the precautions below: they are
all important for ensuring safety.
The following safety symbols are used throughout this manual.
After completing installation, test the unit to check for installation
errors. Give the user adequate instructions concerning the use
and cleaning of the unit according to the operation manual of the
indoor unit.
WARNING
Installation should be left to the dealer or another professional.
Improper installation may cause water leakage, electrical shock,
or fire.
Install the air conditioner according to the instructions given in
this manual.
Incomplete installation may cause water leakage, electrical
shock, or fire.
Be sure to use the supplied or specified installation parts.
Use of other parts may cause the unit to vibrate loose, and may
cause water leakage, electrical shock, or fire.
Install the air conditioner on a solid base that can support the
weight of the unit.
An inadequate base or incomplete installation may cause injury
in the event the unit falls off the base.
Electrical work should be carried out in accordance with the
installation manual and the national electrical wiring rules or
code of practice.
Insufficient capacity or incomplete electrical work may cause
electrical shock or fire.
Be sure to use a dedicated power circuit. Never use a power
supply shared by another appliance.
For wiring, use a cable long enough to cover the entire distance
with no connection. Do not use an extension cord. Do not put
other loads on the power supply, use a dedicated power circuit.
Failure to do so may cause abnormal heat, electric shock, or
fire.
Use the specified types of wires for electrical connections
between the indoor and outdoor units.
Firmly clamp the interconnecting wires so that their terminals
receive no external stress. Incomplete connections or clamping
may cause terminal overheating or fire.
After connecting the interconnecting and supply wiring, be sure
to shape the cables so that they do not put undue force on the
electrical covers or panels.
Install covers over the wires. Incomplete cover installation may
cause terminal overheating, electrical shock, or fire.
R410A Split series
Installation manual
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY
PLACE FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR
ADVICE AND INFORMATION.
Failure to follow any of WARNING is likely to result in such
grave consequences as death or serious injury.
Failure to follow any of CAUTION may in some cases
result in grave consequences.
Be sure to observe this instruction.
Be sure to establish an earth connection.
Never attempt.
