MODELS
Floor standing duct type
FXVQ125MY1
FXVQ200MY1
FXVQ250MY1
FXVQ400MY1
FXVQ500MY1
FXVQ500MY16
INSTALLATION MANUAL
SYSTEM Air Conditioners
CAREFULLY READ THESE INSTRUCTIONS BEFORE INSTALLATION.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.
FX VQ125MY1 FXVQ200MY1 F XVQ 250MY1 FX VQ4 00 MY1 FXVQ500MY1 FXVQ 50 0MY16
VRV System
air conditioner
Installation
manual
CONTENTS
1. SAFET Y PRECAUTIONS ................................................. 1
2. BEFORE INSTALLATION ................................................. 2
3. CARRY-IN METHOD ........................................................ 3
4. INSTALLATION SITE ....................................................... 3
5. CAUTION AT INSTALLATION .......................................... 4
6. REFRIGERANT PIPING ................................................... 4
7. DRAIN PIPING ................................................................. 6
8. ELECTRIC WIRING.......................................................... 6
9.
FIELD SETTING AND CONTROL WIRING ......................... 9
10.
TRIAL OPERATION .............................................................10
1. SAFETY PRECAUTIONS
Be sure to follow this “SAFETY PRECAUTIONS”.
This product comes under the term “appliances not
accessible to the general public”.
This is a class A product. In a domestic environment this
product may cause radio interference in which case the user
may be required to take adequate measures.
This manual classies the precautions into WARNINGS and
CAUTIONS.
Be sure to follow all the precautions below: They are all
important for ensuring safety.
WARNING ......... Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTION .......... Indicates a potentially hazardous
situation which, if not avoided, may
result in minor or moderate injury.
It may also be used to alert against
unsafe practices.
• After the installation is completed, test the air conditioner
and check if the air conditioner operates properly. Give
the user adequate instructions concerning the use and
cleaning of the indoor unit according to the Operation
Manual. Ask the user to keep this manual and the
Operation Manual together in a handy place for future
reference.
WARNING
• Ask your local dealer or qualied personnel to carry out
installation work.
Improper installation may result in water leakage, electric
shocks or a re.
• Perform installation work in accordance with this installation
manual.
Improper installation may result in water leakage, electric
shocks or a re.
• Consult your local dealer regarding what to do in case of
refrigerant leakage.
When the air conditioner is installed in a small room, it is
necessary to take proper measures so that the amount of
any leaked refrigerant does not exceed the concentration
limit in the event of a leakage.
Otherwise, this may lead to an accident due to oxygen
deciency.
• Be sure to use only the specied parts and accessories for
installation work.
Failure to use the specied parts may result in the air
conditioner falling down, water leakage, electric shocks, a
re, etc.
• Install the air conditioner on a foundation that can
withstand its mass.
It may lead to vibration of indoor units and cause
unpleasant chattering noise.
• Carry out the specied installation work in consideration of
strong winds, typhoons, or earthquakes.
Improper installation may result in an accident such as air
conditioner falling.
• Make certain that all electrical work is carried out by
qualied personnel according to the applicable legislation
(note 1) and this installation manual, using a separate
circuit.
In addition, even if the wiring is short, make sure to use
a wiring that has sufcient length and never connect
additional wiring to make the length sufcient.
Insufcient capacity of the power supply circuit or improper
electrical construction may lead to electric shocks or a re.
(note 1) applicable legislation means “All international,
national and local directives, laws, regulations
and/or codes which are relevant and applicable for
a certain product or domain”.
• Earth the air conditioner.
Do not connect the earth wiring to gas or water piping,
lightning conductor or telephone earth wiring.
Incomplete earthing may cause electric shocks or a re.
• Be sure to install an earth leakage circuit breaker.
Failure to do so may cause electric shocks and a re.
• Disconnect the power supply before touching the electric
components.
If you touch the live part, you may get an electric shocks.
• Make sure that all wiring is secure, using the specied
wiring and ensuring that external forces do not act on the
terminal connections or wiring.
Incomplete connection or xing may cause an overheat or
a re.
• When wiring between the indoor and outdoor units, and
wiring the power supply, form the wiring orderly so that the
control box lid can be securely fastened.
If the control box lid is not in place, overheat of the
terminals, electric shocks or a re may be caused.
• If refrigerant gas leaks during installation work, ventilate
the area immediately.
Toxic gas may be produced if refrigerant gas comes into
contact with a re.
• After completing the installation work, check to make sure
that there is no leakage of refrigerant gas.
Toxic gas may be produced if refrigerant gas leaks into the
room and comes into contact with a source of a re, such
as a fan heater, stove or cooker.
• Never directly touch any accidental leaking refrigerant.
This could result in severe wounds caused by frostbite.
CAUTION
• Install drain piping according to this installation manual to
ensure good drainage, and insulate the piping to prevent
condensation.
Improper drain piping may cause water leakage, make the
furniture get wet.
1 English
• Install the air conditioner, power supply wiring, remote
controller wiring and transmission wiring at least 1
meter away from televisions or radios to prevent image
interference or noise.
(Depending on the radio waves, a distance of 1 meter may
not be sufcient to eliminate the noise.)
• Do not install the air conditioner in places such as the
following:
1. Where there is mist of oil, oil spray or vapour for
example a kitchen.
Resin parts may deteriorate, and cause them to fall out
or water to leak.
2. Where corrosive gas, such as sulfurous acid gas, is
produced.
Corrosion of copper pipings or brazed parts may cause
the refrigerant to leak.
3. Where there is machinery which emits electromagnetic
waves.
Electromagnetic waves may disturb the control system,
and cause malfunction of the equipment.
4. Where ammable gases may leak, where carbon bre
or ignitable dust is suspended in the air or where volatile
ammables, such as thinner or gasoline, are handled.
If the gas should leak and remained around the air
conditioner, it may cause ignition.
2. BEFORE I N STALLATI O N
• Make sure to use the R410A refrigerant before the
installation work.
(Otherwise, the unit can not operate normally.)
• For installation of outdoor unit, refer to the installation
manual attached to the outdoor unit.
• Do not throw away the accessories required for installation
until the installation is nished.
2-1 PRECAUTION
• Be sure to instruct the customer how to properly operate
the system (particularly the cleaning of air lter, operation
method, temperature adjusting method) showing the
attached operation manual to the person.
• Do not install the unit where the atmosphere is salty
such as near the seaside, where the voltage frequently
uctuates or in a vehicle or a boat.
2-2 ACCESSORIES
Check if the following accessories are included in the indoor
unit.
Insulation
Name Connection pipings
1 pc.
Quantity
Shape
Location Partition plate
(125-250 type)
(Gas
piping)
For each 1 pc.
(400 · 500 type)
(Liquid
piping)
(Gas
piping)
Drain
plug cap
for Drain
plug
1 pc. 1 pc. 3 pcs. 1 pc.
Clamp
Hanging
bolt for fan
motor
(only
50 0MY16)
Name Bolts (for anges)
Quantity
Shape
Location
Name Nuts (for anges)
Quantity
Shape
Location
14 pcs.
(125 · 200 type)
Partition plate (However, 2 bolts and 2 nuts are used for
ange temporary xing.)
14 pcs.
(125 · 200 type)
Partition plate (However, 2 bolts and 2 nuts
are used for ange temporary xing.)
30 pcs.
(250 type)
30 pcs.
(250 type)
18 pcs.
(40 0 type)
M8
18 pcs.
(40 0 type)
M8×20
(500 type)
36 pcs.
36 pcs.
(500 type)
[Others]
• Operation
manual
Installation
•
manual
Stay for
control panel
2-3 CARRY OUT THE WORK GIVING
CAUTION TO THE FOLLOWING ITEMS
AND AFTER THE WORK IS COMPLETED
CHECK THESE AGAIN.
1. Items to be checked after the installation work is
completed
Items to be checked In case of defective
Are the air conditioner rigidly
xed?
Are the installation work of the
air conditioner complete?
Have you carried out a
leakage test with the test
pressure specied in the
outdoor unit installation
manual?
Is the insulation of refrigerant
piping and drain piping
completely carried out?
Does the drain ow out
smoothly?
Is the power supply voltage
identical to that stated in the
manufacturer’s label on the air
conditioner?
Are you sure that there is no
wrong wiring nor piping or no
loose wiring?
Is earthing completed? Danger in case of leakage
Are the sizes of electric wiring
according to the specication?
Is any of air outlets or inlets of
the air conditioner blocked with
obstacles?
(It may lead to capacity drop
due to fan speed drop or
malfunction of equipment.)
Have you recorded the
refrigerant piping length and
the refrigerant charge added?
Make sure to recheck the items of “SAFETY
PRECAUTIONS”.
Drop · vibration · noise
Does not operate · burnout
Does not cool / Does not
heat
Water leakage
Water leakage
Does not operate · burnout
Does not operate · burnout
Does not operate · burnout
Does not cool / Does not
heat
Refrigerant charge amount
is not clear
Check
column
2English
2. Items to be checked at delivery
Items to be checked
Have you carried out eld setting? (if necessary)
Are the control box lid, the air lter and the suction grille
attached?
Does the cool air discharge during the cooling
operation and the warm air discharge during heating
operation?
Have you explained how to operate the air conditioner
showing the operation manual to the customer?
Have you explained the description of cooling and
heating given in the operation manual to the customer?
Have you handed the operation manual and the
installation manual to the customer?
Check
column
Points of the operation explanation
In addition to the general usage, since the items in the
operation manual with the
WARNING and CAUTION
marks are likely to result in human bodily injuries and
property damages, it is necessary not only to explain
these items to the customer but also to have the
customer read them.
It is also necessary to explain the items of “NOT
MALFUNCTION OF THE AIR CONDITIONER” to the
customer and have the customer read them carefully.
3. CARRY-IN METHOD
Note
Do not throw away the accessories required for installation
until the installation is nished.
• Choose the carry-in route of the indoor unit.
• When lifting the unit with a crane, use belt sling and
perform lifting the unit as shown in the gure below.
Belt sling
Put a rag or a corrugated
fiberboard to prevent damage of
the suction grille and the control
panel part.
4. INSTALLATION SITE
Note
Do not apply force on the resin parts in case of carrying the
indoor unit when and after unpacking.
(1) Select an installation site where the following conditions
are satised and obtain the customer’s approval before
installation.
• The foundation is strong enough to support the weight
of the unit and the oor is at to prevent vibration and
noise generation.
• The place where the cold (warm) air is spread all over
the room.
(In case of free blow by the plenum chamber)
• The place where the condensate can be properly
drained.
• The place where there is no possibility of ammable
gas leak.
• The place where is not heat affected by other heating
equipment.
• The space around the unit is adequate for servicing
and the minimum space for air inlet and air outlet is
available.
• The place where the piping length between indoor unit
and outdoor unit is within the allowable limit.
(Refer to the installation manual attached to the
outdoor unit.)
(2) After installation, remove the shipping brackets attached
to the bottom frame.
(3) Secure the unit to its base using foundation bolts.
4-1 EXAMPLE OF REQUIRED SPACE
• Select a suitable pattern from the gure below according
to local space in view of walkway and ventilation when
installing.
(If the given eld space fails to meet the conditions of work
in this gure, contact the dealer.)
Piping connection A B
Left side 500 mm 100 mm
Right side 100 m m 500 mm
Make sure to sling over the hanger.
φ15 hole (125
φ17 hole (400 · 500 type
or more
A
900 mm or more
Foundation bolts fixing plate
Indoor
unit
<
Front
side
(
4 Portions
>
)
-
250 type
B
)
)
100 mm
or more
or more
3 English
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