FTQ18PBVJU
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INSTALLATION MANUAL
SPLIT SYSTEM HEAT PUMP
MODELS
Air Handling Unit
FTQ18PBVJU
FTQ24PBVJU
FTQ30PBVJU
FTQ36PBVJU
FTQ42PBVJU
Read these instructions carefully before installation.
Keep this manual in a handy place for future reference.
This manual should be left with the equipment owner.
Lire soigneusement ces instructions avant l’installation.
Conserver ce manuel à portée de main pour référence ultérieure.
Ce manuel doit être donné au propriétaire de l’équipement.
Lea cuidadosamente estas instrucciones antes de instalar.
Guarde este manual en un lugar a mano para leer en caso de tener alguna duda.
Este manual debe permanecer con el propietario del equipo.
1 English
SPLIT SYSTEM HEAT PUMP Installation manual
CONTENTS
1. SAFETY CONSIDERATIONS ........................................... 1
2. BEFORE INSTALLATION .................................................. 3
3. SELECTING INSTALLATION SITE ................................... 4
4. PREPARATIONS BEFORE INSTALLATION AND
INSTALLATION .................................................................. 5
5. REFRIGERANT PIPING WORK ....................................... 6
6. DRAIN PIPING WORK ...................................................... 8
7. INSTALLING THE DUCT ................................................... 9
8. ELECTRIC WIRING WORK .............................................. 9
9. WIRING EXAMPLE ......................................................... 10
10. FIELD SETTING AND TEST RUN .................................. 13
11. WIRING DIAGRAM ......................................................... 17
SAFETY CONSIDERATIONS1.
Read these “SAFETY CONSIDERATIONS for Installation”
carefully before installing an air conditioner or heat pump. After
completing the installation, make sure that the unit operates
properly during the startup operation.
Instruct the customer on how to operate and maintain the unit.
Inform customers that they should store this Installation Manu-
al with the Operation Manual for future reference.
Always use a licensed installer or contractor to install this
product. Improper installation can result in water or refrigerant
leakage, electrical shock, fi re, or explosion.
This air conditioner comes under the term “appliances not
accessible to the general public”.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER ................ Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
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.
NOTE...................... Indicates situations that may result in
equipment or property-damage
accidents only.
DANGER
Refrigerant gas is heavier than air and replaces oxygen. •
A massive leak can lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur
leading to serious injury or death.
Do not ground units to water pipes, gas pipes, tele-•
phone 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 the •
area immediately. Refrigerant gas may produce toxic
gas if it comes in contact with fi re. Exposure to this gas
could cause severe injury or death.
After completing the installation work, check that the •
refrigerant gas does not leak throughout the system.
Do not install unit in an area where fl ammable materials •
are present due to risk of explosions that can cause
serious injury or death.
Safely dispose all packing and transportation materials •
in accordance with federal/state/local laws or ordinanc-
es. Packing materials such as nails and other metal or
wood parts, including plastic packing materials used for
transportation may cause injuries or death by suffoca-
tion.
WARNING
All phases of the fi eld-installation, including, but not •
limited to, electrical, piping, safety, etc. must be in ac-
cordance with manufacturer’s instructions and must
comply with national, state, provincial and local codes.
Only qualifi ed personnel must carry out the installation •
work. Installation must be done in accordance with this
installation manual. Improper installation may result in
water leakage, electric shock, or fi re.
When installing the unit in a small room, take measures •
to keep the refrigerant concentration from exceeding
allowable safety limits. Excessive refrigerant leaks, in
the event of an accident in a closed ambient space, can
lead to oxygen defi ciency.
Use only specifi ed accessories and parts for installation •
work. Failure to use specifi ed parts may result in water
leakage, electric shocks, fi re, or the unit falling.
Install the air conditioner or heat pump on a foundation •
strong enough that it can withstand the weight of the
unit. A foundation of insuffi cient strength may result in
the unit falling and causing injuries.
Take into account strong winds, typhoons, or earth-•
quakes when installing. Improper installation may result
in the unit falling and causing accidents.
Make sure that a separate power supply circuit is pro-•
vided for this unit and that all electrical work is carried
out by qualifi ed personnel according to local, state, and
national regulations. An insuffi cient power supply
capacity or improper electrical construction may lead to
electric shocks or fi re.
English 2
Make sure that all wiring is secured, that specifi ed wires •
are used, and that no external forces act on the terminal
connections or wires. Improper connections or installa-
tion may result in fi re.
When wiring, position the wires so that the control box
•
cover can be securely fastened. Improper positioning of
the control box cover may result in electric shocks, fi re, or
the terminals overheating.
Before touching electrical parts, turn off the unit.•
It is recommended to install a ground fault circuit inter-•
rupter if one is not already available. This helps prevent
electrical shocks or fi re.
Securely fasten the outdoor unit terminal cover (panel). •
If the terminal cover/panel is not installed properly, dust
or water may enter the outdoor unit causing fi re or
electric shock.
When installing or relocating the system, keep the •
refrigerant circuit free from substances other than the
specifi ed refrigerant (R410A) such as air. Any presence
of air or other foreign substance in the refrigerant cir-
cuit can cause an abnormal pressure rise or rupture,
resulting in injury.
Do not change the setting of the protection devices. If •
the pressure switch, thermal switch, or other protection
device is shorted and operated forcibly, or parts other
than those specifi ed by Daikin are used, fi re or explo-
sion may occur.
Heat exchanger fi ns are sharp enough to cut. •
To avoid injury wear glove or cover the fi ns when work-
ing around them.
CAUTION
Do not touch the switch with wet fi ngers. Touching a •
switch with wet fi ngers can cause electric shock.
Do not allow children to play on or around the unit to •
prevent injury.
Do not touch the refrigerant pipes during and immedi-•
ately after operation as the refrigerant pipes may be hot
or cold, depending on the condition of the refrigerant
fl owing through the refrigerant piping, compressor, and
other refrigerant cycle parts. Your hands may suffer
burns or frostbite if you touch the refrigerant pipes. To
avoid injury, give the pipes time to return to normal
temperature or, if you must touch them, be sure to wear
proper gloves.
Install drain piping to proper drainage. Improper drain
•
piping may result in water leakage and property damage.
Insulate piping to prevent condensation.•
Be careful when transporting the product.•
Do not turn off the power immediately after stopping
•
operation. Always wait for at least 5 minutes before turn-
ing off the power. Otherwise, water leakage may occur.
Do not touch the refrigerant pipes during and immedi-•
ately after operation as the refrigerant pipes may be hot
or cold, depending on the condition of the refrigerant
fl owing through the refrigerant piping, compressor, and
other refrigerant cycle parts. Your hands may suffer
burns or frostbite if you touch the refrigerant pipes. To
avoid injury, give the pipes time to return to normal
temperature or, if you must touch them, be sure to wear
proper gloves.
Do not use a charging cylinder. Using a charging cylin-•
der may cause the refrigerant to deteriorate.
Refrigerant R410A in the system must be kept clean, •
dry, and tight.
Clean and Dry -- Foreign materials (including min-(a)
eral oils such as SUNISO oil or moisture) should be
prevented from getting into the system.
Tight -- R410A does not contain any chlorine, does (b)
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 installa-
tion. Read the chapter Refrigerant Piping work and
follow the procedures.
Since R410A is a blend, the required additional refriger-•
ant must be charged in its liquid state. If the refrigerant
is charged in a state of gas, its composition can change
and the system will not work properly.
The indoor unit is for R410A. See the catalog for indoor •
models that can be connected. Normal operation is not
possible when connected to other units.
Remote controller transmitting distance can be shorter •
than expected in rooms with electronic fl uorescent
lamps (inverter or rapid start types). Install the indoor
unit far away from fl uorescent lamps as much as pos-
sible.
Install in a machine room that is free of moisture. •
The unit is designed for indoor use.
Indoor units are for indoor installation only. Outdoor •
units can be installed either outdoors or indoors. This
unit is for indoor use.
Do not install the air conditioner or heat pump in the •
following locations:
Where a mineral oil mist or oil spray or vapor is (a)
produced, for example, in a kitchen.
Plastic parts may deteriorate and fall off or result in
water leakage.
Where corrosive gas, such as sulfurous acid gas, is (b)
produced.
Corroding copper pipes or soldered parts may result
in refrigerant leakage.
Near machinery emitting electromagnetic waves.(c)
Electromagnetic waves may disturb the operation of
the control system and cause the unit to malfunc-
tion.
Where fl ammable gas may leak, where there is (d)
carbon fi ber, or ignitable dust suspension in the air,
or where volatile fl ammables such as thinner or
gasoline are handled. Operating the unit in such
conditions can cause a fi re.
3 English
Take adequate measures to prevent the outdoor unit •
from being used as a shelter by small animals. Small
animals making contact with electrical parts can cause
malfunctions, smoke, or fi re. Instruct the customer to
keep the area around the unit clean.
NOTE
Install the power supply and control wires for the indoor •
and outdoor units at least 3.5 feet away from televisions
or radios to prevent image interference or noise. De-
pending on the radio waves, a distance of 3.5 feet may
not be suffi cient to eliminate the noise.
In a domestic environment this product may cause radio •
interference in which case the user may be required to
take adequate measures.
Dismantling the unit, treatment of the refrigerant, oil and •
additional parts must be done in accordance with the
relevant local, state, and national regulations.
Do not use the following tools that are used with con-•
ventional refrigerants: gauge manifold, charge hose,
gas leak detector, reverse fl ow check valve, refrigerant
charge base, vacuum gauge, or refrigerant recovery
equipment.
If the conventional refrigerant and refrigerator oil are •
mixed in R410A, the refrigerant may deteriorate.
This air conditioner or heat pump is an appliance that •
should not be accessible to the general public.
As design pressure is 478 psi, the wall thickness of •
fi eld-installed pipes should be selected in accordance
with the relevant local, state, and national regulations.
BEFORE INSTALLATION2.
WARNING
Entrust installation to the place of purchase or a qualifi ed •
serviceman. Improper installation could lead to leaks and, in
worse cases, electric shock or fi re.
Use of unspecifi ed parts could lead to the unit falling, leaks •
and, in worse cases, electric shock or fi re.
NOTE
Be sure to read this manual before installing the indoor unit.•
Be sure to mount an air fi lter (part to be procured in the fi eld) in
•
the suction air passage in order to prevent water leaking, etc.
The accessories needed for installation must be retained
in your custody until the installation work is completed.
Do not discard them.
Decide upon a line of transport.1.
Leave the unit inside its packaging while moving, until reach-
2.
ing 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.
Be sure to check the type of R410A refrigerant to be used
before installing the unit.
(Using an incorrect refrigerant will prevent normal opera-
tion of the unit.)
For the installation of an outdoor unit, refer to the installation
manual attached to the outdoor unit.
PRECAUTIONS2-1
Be sure to instruct customers how to properly operate the •
unit (operating different functions, and adjusting the tem-
perature) by having them carry out operations themselves
while looking at the operation manual.
Do not install in locations where the air contains high levels of
•
salt such as that near the ocean and where voltage fl uctuates
greatly such as that in factories, or in vehicles or vessels.
ACCESSORIES2-2
Check the following accessories are included with your unit.
Name
Clamp
material (1)
Insulation tube
Metal
clamp (4)
Drain
hose (5)
Quantity 6 pcs. 1 set 1 pc. 1 pc.
Shape
Small (2)
1 pc.
Large (3)
1 pc.
Name
Insulation for
fi tting
Sealing pad
(Other)
Operation manual •
Installation manual •
Note sheet •
Quantity 1 each –
Shape
for liquid pipe (6)
for gas pipe (7)
1 pc.
Large (9)
2 pcs.
Small (8)
OPTIONAL ACCESSORIES2-3
This indoor unit requires one of the operation remote con-•
trols listed below.
Remote controller
Wired type BRC1E71
NOTE
If you wish to use a remote controller that is not listed in •
Table 1, select a suitable remote controller after consulting
catalogs and engineering data.
English 4
FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE
DURING CONSTRUCTION AND CHECK AFTER
INSTALLATION IS FINISHED.
a. 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 and outdoor
unit fi xed fi rmly?
The units may drop, vibrate
or make noise.
Was the installation of the
outdoor unit completed?
The unit may malfunction or
the components burn out.
Is the gas leak test fi nished? No cooling or heating.
Is the unit fully insulated?
(Refrigerant piping, drain
piping, and duct)
Condensate water may drip.
Dose drainage fl ow
smoothly?
Condensate water may drip.
Does the power supply
voltage conform to the
indication on the name
plate?
The unit may malfunction or
the components burn out.
Are wiring and piping
correct?
The unit may malfunction or
the components burn out.
Is the air conditioner or heat
pump properly grounded?
Dangerous in case of
current leakage.
Is wiring size according to
specifi cations?
The unit may malfunction or
the components burn out.
Is something blocking the air
outlet or inlet of either the
indoor or outdoor units?
No cooling or heating.
Did you set the external
static pressure?
No cooling or heating.
Are refrigerant piping length
and additional refrigerant
charge noted down?
The refrigerant charge in
the system is not clear.
Did you check that no wiring
connection screws were
loose?
Electric shock or fi re.
Also review the “SAFETY CONSIDERATIONS”.
b. Items to be checked at the time of delivery
Items to be checked Check
Are you sure the control box lid, air fi lter, air inlet grille,
and air outlet grille are mounted?
Did you explain about operations while showing the
operation manual to your customer?
Did you deliver the operation manual along with the
installation manual to the customer?
Did you explain the customer the handling and cleaning
methods of the fi eld supplies (e.g., the air fi lter, air inlet
grilles, and air outlet grille)?
Did you deliver instruction manual, if any, for the fi eld
supplies to the customer?
c. Points for explanation about operations
The items with WARNING and CAUTION marks in the
operation 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 operation manual.
SELECTING INSTALLATION SITE3.
CAUTION
If you think the humidity inside the installation space might •
exceed 86°F and RH80%, reinforce the insulation on the
unit body.
Use glass wool or polyethylene foam as insulation so that
the thickness is more than 2 in. and fi ts inside the installation
space opening.
Select an installation site where the following conditions
(1)
are fulfi lled and that meets with your customer’s approval.
Where optimum air distribution can be ensured.•
Where nothing blocks air passage.•
Where condensate can be properly drained.•
Where the supports are strong enough to bear the •
indoor unit weight.
Where the false ceiling is not noticeably on an incline.•
Where suffi cient clearance for maintenance and service •
can be ensured. (Refer to Fig. 1-1 and Fig. 1-2)
Where piping between indoor and outdoor units is •
possible within the allowable limit. (Refer to the installa-
tion manual for the outdoor unit.)
If the a return-air duct is not installed, carefully select •
the place and method of product installation so that air
fl ow into the product will not be blocked.
If installed vertically
24 or more
(unit : in.)
(Top view)
H
(Front view)
Air outlet
Air inlet
Fig. 1-1
5 English
If installed horizontally
H
(Front view)
Air outlet
Air inlet
24 or
more
(Side view)
H
Fig. 1-2
WARNING
When installing the unit horizontally, be sure to tilt the unit in •
the direction shown in Fig. 1-2. If the unit is tilted in any other
way, water can leak.
Ensure suffi cient space for the bottom of the product
•
(H dimensions) so that a downward slope of 1/100 can
be maintained for drain piping, as described for the intake
duct installation and in “6. DRAIN PIPING WORK”.
[ PRECAUTION ]
Install the indoor and outdoor units, power supply wiring •
and connecting wires at least 3.5 ft. away from televi-
sions or radios in order to prevent image interference or
noise. (Depending on the radio waves, a distance of
3.3 ft. may not be suffi cient to eliminate the noise.)
If installing the wireless kit in a room with electronic •
fl uorescent lighting (inverter or rapid start type), the
remote controller’s transmission distance may be short-
ened. Indoor units should be installed as far away from
fl uorescent lighting as possible.
DANGER
Do not install unit in an area where fl ammable materials are •
present due to the risk of an explosion resulting in serious
injury or death.
WARNING
If the supporting structural members are not strong enough •
to take the unit’s weight, the unit could fall out of place and
cause serious injury.
PREPARATIONS BEFORE INSTALLA-4.
TION AND INSTALLATION
When installing the product, refer to “3. SELECTING (1)
INSTALLATION SITE” and consider the product size
as shown Fig. 2 and Table 1.
20
22
13-1/16
12
26
A
B
C
1-1/4
Gas line
182 (2)
1
2-1/4
20-11/163
(2-5/16)
Liquid line
Inlet
Inlet
(Right side view)
(Front view)
(unit: in.)
Fig. 2
Table 1
ABC
FTQ30 - 42
58-1/4 16-1/4 12-1/16
FTQ18 - 24 48-1/8 13-3/16 9-1/16
Make sure the range of the unit’s external static pres-(2)
sure is not exceeded. (up to 0.5 in.WG at “HH” speed.)
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