Installation and operation manual
1
FXCQ20~125M8V3B
VRV System air conditioners
4PW25081-1A
C
ONTENTS
Page
Before installation.............................................................................. 1
Selecting installation site................................................................... 2
Preparations before installation......................................................... 2
Indoor unit installation ....................................................................... 2
Refrigerant piping work ..................................................................... 3
Drain piping work .............................................................................. 3
Electric wiring work ........................................................................... 4
Wiring example and how to set the remote controller ....................... 5
Wiring example ................................................................................. 5
Installation of the decoration panel ................................................... 7
Test operation.................................................................................... 7
Maintenance...................................................................................... 7
Disposal requirements ...................................................................... 8
Wiring diagram .................................................................................. 9
B
EFORE
INSTALLATION
■
Leave the unit inside its packaging until you reach the
installation site. Where unpacking is unavoidable, use a sling of
soft material or protective plates together with a rope when
lifting, this to avoid damage or scratches to the unit.
■
Refer to the installation manual of the outdoor unit for items not
described in this manual.
■
Caution concerning refrigerant series R410A:
The connectable outdoor units must be designed exclusively for
R410A.
■
Do not place objects in direct proximity of the outdoor unit and
do not let leaves and other debris accumulate around the unit.
Leaves are a hotbed for small animals which can enter the unit.
Once in the unit, such animals can cause malfunctions, smoke
or fire when making contact with electrical parts.
Precautions
■
Do not install or operate the unit in rooms mentioned below.
•
Places with mineral oil, or filled with oil vapour or spray like in
kitchens. (Plastic parts may deteriorate.)
•
Where corrosive gas like sulphurous gas exists. (Copper tubing
and brazed spots may corrode.)
•
Where volatile flammable gas like thinner or gasoline is used.
•
Where machines generating electromagnetic waves exist.
(Control system may malfunction.)
•
Where the air contains high levels of salt such as air near the
ocean and where voltage fluctuates a lot (e.g. in factories). Also
in vehicles or vessels.
■
When selecting the installation site, use the supplied paper
pattern for installation.
■
Do not install accessories on the casing directly. Drilling holes in the
casing may damage electrical wires and consequently cause fire.
Accessories
Check if the following accessories are included with your unit.
Optional accessories
■
There are two types of remote controllers: wired and wireless.
Select a remote controller according to customers request and
install in an appropriate place.
Refer to catalogues and technical literature for selecting a
suitable remote controller.
■
Decoration panel.
For the following items, take special care during
construction and check after installation is finished
FXCQ20M8V3B
FXCQ50M8V3B
FXCQ25M8V3B
FXCQ63M8V3B
FXCQ32M8V3B
FXCQ80M8V3B
FXCQ40M8V3B
FXCQ125M8V3B
VRV System air conditioners
Installation
and operation 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.
Clamp
1 piece
Also used as packing
material
Paper pattern for
installation
1 piece
Drain hose
1 piece
Insulation for fitting
1 each
for gas pipe
for liquid pipe
Screws M5
For paper pattern
for installation
4 pieces
Washer for hanging
bracket
8 pieces
Other: installation and operation manual
Tick
✓
when
checked
■
Is the indoor unit fixed firmly?
The unit may drop, vibrate or make noise.
■
Is the gas leak test finished?
It may result in insufficient cooling.
■
Is the unit fully insulated?
Condensate water may drip.
■
Does drainage flow smoothly?
Condensate water may drip.
■
Does the power supply voltage correspond to that shown on the
name plate?
The unit may malfunction or components may burn out.
■
Are wiring and piping correct?
The unit may malfunction or components may burn out.
■
Is the unit safely grounded?
Dangerous at electric leakage.
■
Is the wiring size according to specifications?
The unit may malfunction or components may burn out.
■
Is nothing blocking the air outlet or inlet of either the indoor or
outdoor units?
It may result in insufficient cooling.
■
Are refrigerant piping length and additional refrigerant charge
noted down?
The refrigerant charge in the system might not be clear.
