2. BEFORE INSTALLATION ................................................ 2
3. SELECTING INSTALLATION SITE ................................. 3
4. PREPARATIONS BEFORE INSTALLATION.................... 4
5. INDOOR UNIT INSTALLATION ....................................... 5
6. REFRIGERANT PIPING WORK ..................................... 5
7. DRAIN PIPING WORK .................................................... 7
8. INSTALLING THE DUCT................................................. 9
9. ELECTRIC WIRING WORK ............................................ 9
10. WIRING EXAMPLE ....................................................... 10
11. FIELD SETTING AND TEST RUN ................................ 13
1.SAFETY PRECAUTIONS
Please read these “SAFETY PRECAUTIONS” carefully before
installing air conditioning equipment 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”.
This unit 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.
Meaning of WARNING and CAUTION notices
WARNING ............. Failure to follow these instructions
properly may result in personal injury
or loss of life.
CAUTION .............. Failure to observe these instructions
properly may result in property damage or personal injury, which may be
serious depending on the circumstances.
WAR NING
•
Ask your dealer or qualified personnel to carry out installation
work.
Do not attempt to install the air conditioner yourself.
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.
Improper
•
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 fingers.
Touching the switch with wet fingers 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.
•
Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in electric shocks or fire.
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.
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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.
•
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.
•
In a domestic environment this product may cause radio
interference in which case the user may be required to take
adequate measures.
Follow national standards for installation work.
2.BEFORE INSTALLATION
The accessories needed for installation must be retained in
your custody until the installation work is completed. Do
not discard them!
1. Decide upon a line of transport.
2. 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.
When moving the unit at or after opening, hold the unit by
the hanger brackets. Do not apply force to the refrigerant
piping, drain piping or flange parts.
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.)
For the installation of an outdoor unit, refer to the installation
manual attached to the outdoor unit.
2-1 PRECAUTIONS
•
Be sure to instruct customers how to properly operate the
unit (operating different functions, and adjusting the temperature ) 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 fluctuates
greatly such as that in factories, or in vehicles or vessels.
2-2 ACCESSORIES
Check the following accessories are included with your unit.
Name
Quantity1 pc.1 pc.1 each1 each
Shape
Name
Quantity1 set8 pcs.1 set4 pcs.
Shape
Name
Quantity2 pcs.1 pc.
Shape
Metal
clamp (1)
Screws for
duct flanges
(7)
26 pcs.
Sealing
material (12)
Drain
hose (2)
Washer for
hanging
bracket (8)
Insulation
for fitting
for liquid pipe (3)
for gas pipe (4)
Air filter (13)
Clamp
Large (9)
8 pcs.
small (10)
4 pcs.
(Other)
• Operation manual
• Product quality
certificate
• Installation manual
(this manual)
Sealing pad
Large (5)
mid. (6)
Washer
fixing plate
(11)
2-3 OPTIONAL ACCESSORIES
•
This indoor unit requires one of the operation remote controls
listed below.
Remote controller
Wired typeBRC1C61
Wireless type (Heat pump type/
Cooling only type)
BRC4C65/BRC4C66
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
Are the indoor and outdoor
unit fixed firmly?
Is the gas leak test finished?
Is the unit fully insulated?Condensate may drip.
Does drainage flow
smoothly?
Does the power supply voltage correspond to that
shown on the name plate?
Are wiring and piping correct?
Is the unit safely grounded?
Is wiring size according to
specifications?
If not properly done, what is
likely to occur
The units may drop, vibrate
or make noise.
It may result in insufficient
cooling.
Condensate may drip.
The unit may malfunction or
the components burn out.
The unit may malfunction or
the components burn out.
Imcomplete grounding may
result in electric shocks.
The unit may malfunction or
the components burn out.
Check
2English
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?
It may result in insufficient
cooling.
The refrigerant charge in the
system is not clear.
Also review the “SAFETY PRECAUTIONS”.
b. Items to be checked at time of delivery
Items to be checkedCheck
Did you explain about operations while showing the
operation manual to your customer?
Did you hand the operation manual and warranty over to
your customer?
Did you explain about the way of maintaining and cleaning
local procurements (air filter, grille (both air outlet and suction grille), etc.) to your customer?
Did you hand manuals of local procurements (in case
equipped) over to your 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.
3.SELECTING INSTALLATION SITE
CAUTION
•
When moving the unit during or after unpacking, make sure
to lift it by holding its lifting lugs. Do not exert any pressure on
other parts, especially the refrigerant piping, drain piping and
flange parts.
•
If you think the humidity inside the ceiling might exceed
30°C and RH80%, reinforce the insulation on the unit body.
Use glass wool or polyethylene foam as insulation so that
it is no thicker than 10mm and fits inside the ceiling opening.
(1) Select an installation site where the following conditions
are fulfilled 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 ceiling is strong enough to bear the indoor unit
weight.
•
Where the false ceiling is not noticeably on an incline.
•
Where there is no risk of flammable gas leakage.
•
Where sufficient clearance for maintenance and service
can be ensured. (Refer to Fig. 1)
•
Where piping between indoor and outdoor units is possible within the allowable limit. (Refer to the installation
manual for the outdoor unit.)
*300
or
more
Maintenance
space
•
*H1 dimension means the minimum height of the unit.
•
Select the *H1, *H2 dimension such that a downward
Control box
*
H2=
Fig. 1
20 or more
300
or more
Maintenance
space
200
Ceiling
H1=
*
240 or more
2500 or more
Floor surface
(length : mm)
slope of at least 1/100 is ensured as indicated in
“7. DRAIN PIPING WORK”.
•
The maintenance space marked with “*” is required when
the installation box for adaptor PC board (KRP1BA101)
sold separately is used.
[ PRECAUTION ]
•
Install the indoor and outdoor units, power supply wiring
and connecting wires at least 1 m away from televisions or
radios in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 m may not
be sufficient enough to eliminate the noise.)
•
If installing the wireless kit in a room with electronic fluorescent lighting (inverter or rapid start type), the remote
controller’s transmission distance may be shortened.
Indoor units should be installed as far away from fluorescent lighting as possible.
(2)
Use suspension bolts for installation. Check whether
the ceiling is strong enough to support the weight of
the unit or not. If there is a risk, reinforce the ceiling
before installing the unit.
(Installation pitch is marked on the carton box for installation. Refer to it to check for points requiring reinforcing.)
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4.PREPARATIONS BEFORE INSTALLATION
(1)
Confirm the positional relationship between the unit
and suspension bolts. (Refer to Fig. 2)
•
Install the inspection opening on the control box side where
maintenance and inspection of the control box and drain
pump are easy. Install the inspection opening also in the
lower part of the unit.
620
500
Suspension
bolt pitch
Air outlet
Drain pump
(length : mm)
Air inlet
Control box
450×450
(Inspection
opening size)
B
A
(Suspension bolt pitch )
(3)
Open the installation hole. (Pre-set ceilings)
•
Once the installation hole is opened in the ceiling where
the unit is to be installed, pass refrigerant piping, drain
piping, transmission wiring, and remote controller wiring
(It is not necessary if using a wireless remote controller)
to the unit’s piping and wiring holes.
See “6. REFRIGERANT PIPING WORK”, “7. DRAIN
PIPING WORK”, and “10. WIRING EXAMPLE”.
•
After opening the ceiling hole, make sure ceiling is level if
needed. It might be necessary to reinforce the ceiling
frame to prevent shaking.
Consult an architect or carpenter for details.
(4)
Install the suspension bolts.
(Use W3/8 to M10 suspension bolts.)
Use a hole-in-anchor for existing ceilings, and a sunken
insert, sunken anchor or other part to be procured in the
field to reinforce the ceiling to bearing the weight of the unit
for new ceiling. (Refer to Fig. 3)
Ceiling slab
Anchor bolt
Long nut or turn-buckle
Suspension bolt
Indoor unit
Note: All the above parts are field supplied.
Fig. 3
Ceiling
〈SERVICE SPACE〉
620
A
Allow view
Inspection door
(Ceiling opening)
Fig. 2
(length: mm)
ModelAB
20 · 25 · 32 type700740
40 · 50 type900940
63 type11001140
(2)
Make sure the range of the unit’s external static pressure is not exceeded.
(See the technical documentation for the range of the
external static pressure setting.)
(5)
For bottom intake, replace the chamber lid and protection net in the procedure listed in Fig. 4.
(1) Remove the protection net.
(6 locations)···PBVE(T) type only
Remove the chamber lid. (7 locations)
(2) Reattached the removed chamber lid in the orientation
shown in Fig. 4. (7 locations)
Reattached the removed protection net in the orientation shown in Fig. 4.
(6 locations)···PBVE(T) type only
(3) Attach the air filter (accessory) in the manner shown in
the diagram.
The four holes which cannot be covered by the air filter
should be covered with commercially available tape.
Protection net
(1)
Air discharge
(2)
Air inlet
Chamber lid
Chamber lid
Protection net
Air discharge
Fig. 4
Air inlet
4English
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