Daikin FDQ16PY1, FDQ20PY1, FDQ16PYL, FDQ20PYL Installation manuals
MODELS
Duct Connection type
FDQ16PY1
FDQ20PY1
FDQ16PYL
FDQ20PYL
INSTALLATION MANUAL
Air Conditioner
English
READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.
Contents
SAFETY PRECAUTIONS .......................................................................................... 1
BEFORE INSTALLATION ......................................................................................... 2
SELECTING INSTALLATION SITE ........................................................................... 5
PREPARATION BEFORE INSTALLATION ................................................................ 6
REPLACING FAN MOTOR PULLEY AND V-BELT .................................................... 8
INSTALLATION OF THE INDOOR UNIT ................................................................... 9
REFRIGERANT PIPING WORK ............................................................................... 10
DRAIN PIPING WORK ............................................................................................. 11
INSTALLING THE DUCT .......................................................................................... 12
ELECTRIC WIRING WORK ..................................................................................... 12
FIELD SETTING ....................................................................................................... 17
TEST OPERATION .................................................................................................. 17
SAFETY PRECAUTIONS
Please read these “SAFETY PRECAUTIONS” carefully before installing air conditioning unit and be sure to install it correctly.
After completing installation, conduct a trial operation to check for faults and explain to the customer how to operate the air conditioner
and take care of it with the aid of the operation manual. Ask the customer to store the installation manual along with the operation
manual for future reference.
This air conditioner comes under the term “appliances not accessible to the general public”.
Meaning of WARNING and CAUTION notices
WAR NING
CAUTION
• Ask your dealer or qualified personnel to carry out installation work.
Do not attempt to install the air conditioner yourself. Improper installation may result in water leakage, electric shocks or fire.
• Install the air conditioner in accordance with the instructions in this installation manual.
Improper installation may result in water leakage, electric shocks or fire.
• Consult your local dealer regarding what to do in case of refrigerant leakage. When the air conditioner is to be 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 depletion.
• Be sure to use only the specified accessories and parts for installation work.
Failure to use the specified parts may result in the unit falling, water leakage, electric shocks or fire.
• Install the air conditioner on a foundation strong enough to withstand the weight of the unit.
A foundation of insufficient strength may result in the equipment falling and causing injury.
• Carry out the specified installation work after taking into account strong winds, typhoons or earthquakes.
Failure to do so during installation work may result in the unit falling and causing accidents.
• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual.
An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.
• Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal connections or
wires.
Improper connections or securing of wires may result in abnormal heat build-up or fire.
• When wiring the power supply and connecting the remote controller wiring and transmission wiring, position the wires so that
the control box lid can be securely fastened.
Improper positioning of the control box lid may result in electric shocks, fire or the terminals overheating.
• If refrigerant gas leaks during installation, ventilate the area immediately.
Toxic gas may be produced if the refrigerant comes into contact with fire.
• After completing installation, check for refrigerant gas leakage.
Toxic gas may be produced if the refrigerant gas leaks into the room and comes into contact with a source of fire, such as a fan
heater, stove or cooker.
• Be sure to switch off the unit before touching any electrical parts.
• Do not touch the switch with wet hands.
Touching the switch with wet hands can cause electric shock.
• Be sure to earth the air conditioner.
Do not earth the unit to a utility pipe, lightning conductor or telephone earth lead. Imperfect earthing may result in electric
shocks or fire.
A high surge current from lightning or other sources may cause damage to the air conditioner.
• Make sure to charge the specified refrigerant into the refrigerant piping. Do not mix with air or other gases; otherwise it may
cause abnormally high pressure or explosion.
• Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in electric shocks or fire.
....................... Failure to follow these instructions properly may result in personal injury or loss of life.
........................ Failure to observe these instructions properly may result in property damage or per-
sonal injury, which may be serious depending on the circumstances.
WARNING
English 1
CAUTION
• While following the instructions in this installation manual, install drain piping to ensure proper drainage and insulate piping to
prevent condensation.
Improper drain piping may result in indoor water leakage and property damage.
• Install the indoor and outdoor units, power cord and connecting wires at least 1 meter away from televisions or radios to prevent
picture interference and noise.
(Depending on the incoming signal strength, a distance of 1 meter may not be sufficient to eliminate noise.)
• Remote controller (wireless kit) transmitting distance can be shorter than expected in rooms with electronic fluorescent lamps
(inverter or rapid start types).
Install the indoor unit as far away from fluorescent lamps as possible.
• Do not install the air conditioner in the following locations:
1.Where there is a high concentration of mineral oil spray or vapour (e.g. a kitchen).
Plastic parts will deteriorate, parts may fall off and water leakage could result.
2.Where corrosive gas, such as sulphurous acid gas, is produced.
Corroding of copper pipes or soldered parts may result in refrigerant leakage.
3.Near machinery emitting electromagnetic radiation.
Electromagnetic radiation may disturb the operation of the control system and result in a malfunction of the unit.
4.Where flammable gas may leak, where there is carbon fibre or ignitable dust suspensions in the air, or where volatile flammables such as paint thinner or gasoline are handled.
Operating the unit in such conditions may result in fire.
• Be sure to attach the air filters (field supply) inside the suction passage. Failure to attach them may result in a malfunction of the
equipment.
• Do not touch the heat exchanger fins.
Improper handling may result in injury.
• Be very careful about product transportation.
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• Safely dispose of the packing materials.
Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.
Tear apart and throw away plastic packaging bags so that children will not play with them. If children play with a plastic bag
which was not torn apart, they face the risk of suffocation.
• Do not turn off the power immediately after stopping operation. Always wait at least 5 minutes before turning off the power. Otherwise, water leakage and trouble may occur.
• Please take necessary measures to prevent this product from electromagnetic interference.
• The air conditioner is not intended for use in a potentially explosive atmosphere.
BEFORE INSTALLATION
• Be sure to check the type of R410A refrigerant to be used before installing the unit. (Using an incorrect refrigerant will prevent normal operation of the unit.)
• This unit is for indoor use only.
• The accessories needed for installation must be retained in your custody until the installation work is completed. Do not discard
them!
• Decide upon the transportation route.
• Leave the unit inside its packaging while moving, until reaching the installation site. Where unpacking is unavoidable, use a sling of
soft material or protective plates together with a rope when lifting, to avoid damage or scratches to the unit.
• This unit is connected to two outdoor units.
• When carrying or opening the package of the indoor unit, hold the suspension supports (×4) of the indoor unit. Do not apply force
to the refrigerant piping, drain piping or plastic parts.
• Do not install or operate the unit in rooms mentioned below.
• Laden with mineral oil, or filled with oil vapor or spray like in kitchens. (Plastic parts may deteriorate which could even-
tually cause the unit to fall out of place, or could lead to leaks.)
• Where corrosive gas like sulfurous gas exists. (Copper tubing and brazed spots may corrode which could eventually
lead to refrigerant leaks.)
• Where exposed to combustible gases and where volatile flammable gas like thinner or gasoline is used. (Gas in the
vicinity of the unit could ignite.)
• Where machines can generate electromagnetic waves. (Control system may malfunction.)
• Where the air contains high levels of salt such as that near the ocean and where voltage fluctuates greatly such as that
in factories.
Also in vehicles or vessels.
• This unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment.
If installed as a household appliance it could cause electromagnetic interference.
2 English
PRECAUTIONS
• Be sure to read this manual before installing the indoor unit.
• Entrust installation to the place of purchase or a qualified serviceman. Improper installation could lead to leaks and, in worse
cases, electric shock of fire.
• Use only parts provided with the unit or parts satisfying required specifications. Unspecified parts could cause the unit to fall out of
place, or could lead to leaks and, in worse cases, electric shock or fire.
• Be sure to mount an air filter (part to be procured in the field) in the suction air passage in order to prevent water leaking, etc.
ACCESSORIES
Name
Insulation
for fitting
Check if the following accessories are included with your unit.
(3)Support
plates
(4)Clamp
(5)Wire
clamp
(6)Gas pipe (7)Liquid pipe (8)Screw Other
Quantity 1 each 3 pcs. 4 pcs. 15 pcs. 1 pc. 1 pc. 22 pcs.
(1)
(Only
FDQ16TYPE)
Shape
for liquid
pipe
• Operation manual
• Installation manual
(2)
for gas pipe
OPTIONAL ACCESSORIES
• The remote controller is required for this indoor unit.
• Please use the wired remote controller BRC1C62 or BRC1D61. Refer to attached the “INSTALLATION MANUAL FOR REMOTE
CONTROLLER”.
Indoor and outdoor unit combinations
• Do not use in any combination other than those shown below. (Refer to Fig. 1)
This unit cannot be connected with other standard indoor units or VRV indoor units.
Indoor unit Outdoor unit
FDQ16PY1 RXYQ8P7Y1K (2 units)
FDQ20PY1 RXYQ10P7Y1K (2 units)
FDQ16PYL RXYQ8P7YLK (2 units)
FDQ20PYL RXYQ10P7YLK (2 units)
Indoor unit
Power supply
Remote
controller
Indoor unit
Pipe
Outdoor unit
power supply
Outdoor unitOutdoor unit
Outdoor unit
power supply
Fig.1
English 3
FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUCTION AND CHECK AFTER
INSTALLATION IS FINISHED.
1. Items to be checked after completion of work
Items to be checked If not properly done, what is likely to occur Check
Are the indoor unit and outdoor unit fixed firmly? The unit may drop, vibrate or make noise.
Is the outdoor unit fully installed?
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?
Are wiring and piping correct?
Is the unit safely grounded? It may result in electric shock.
Is wiring size according to specifications?
Is something blocking the air outlet or inlet of either
the indoor or outdoor units?
Are refrigerant piping length and additional refrigerant charge noted down?
The unit may malfunction or the components burn
out.
The unit may malfunction or the components burn
out.
The unit may malfunction or the components burn
out.
The unit may malfunction or the components burn
out.
It may result in insufficient cooling.
The refrigerant charge in the system is not clear.
2. Items to be checked at time of delivery
* Also review the “SAFETY PRECAUTIONS”
Items to be checked Check
Are the control box lid, air filter, suction grille attached?
Did you explain about operations while showing the instruction manual to your customer?
Did you hand the instruction manual over to your customer?
Points for explanation about operations
The items with WARNING and CAUTION marks in the instruction manual are the items pertaining to possibilities
for bodily injury and material damage in addition to the general usage of the product. Accordingly, it is necessary that
you make a full explanation about the described contents and also ask your customers to read the instruction manual.
NOTE TO THE INSTALLER
Be sure to instruct the customer how to properly operate the system and give him/her the attached operation manual.
4 English
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