DUCT TYPE AIR CONDITIONER
Operation & Installation
Manual
AD142AMBIA
AU142AFBIA
Please read this operation manual before using the air conditioner.
No. 0010572912
A
TABLE OF CONTENTS
CAUTIONS
SAFETY PRECAUTIONS
PARTS AND FUNCTIONS
MALFUNCTION
CARE AND MAINTENANCE
INSTALLATION MANUAL FOR OUTDOOR UNIT
INSTALLATION MANUAL FOR INDOOR UNIT
INSTALLATION MANUAL FOR ELECTRIC WIRING 21
INSTALLATION MANUAL FOR WIRE CONTROLLER
CHECK AND TEST RUN
2
3-5
7-8
9-10
11-14
15-20
22
23
6
1
CAUTIONS
Disposal of the old air conditioner
Before disposing an old air conditioner that
goes out of use, please make sure it's
inoperative and safe. Unplug the air
conditioner in order to avoid the risk of
child entrapment.
It must be noticed that air conditioner
system contains refrigerants, which require
specialized waste disposal. The valuable
materials contained in a air conditioner can
be recycled. Contact your local waste
disposal center for proper disposal of an
old air conditioner and contact your local
authority or your dealer if you have any
question. Please ensure that the pipework
of your air conditioner does not get
damaged prior to being picked up by the
relevant waste disposal center, and
contribute to environmental awareness by
insisting on an appropriate, anti-pollution
method of disposal.
Disposal of the packaging of your new
air conditioner
All the packaging materials employed in
the package of your new air conditioner
may be disposed without any danger to the
environment.
The cardboard box may be broken or cut
into smaller pieces and given to a waste
paper disposal service. The wrapping bag
made of polyethylene and the polyethylene
foam pads contain no fluorochloric
hydrocarbon.
All these valuable materials may be taken
to a waste collecting center and used
again after adequate recycling.
Consult your local authorities for the
nameand address of the waste materials
collecting centers and waste paper
disposal services nearest to your house.
Safety Instructions and Warnings
Before starting the air conditioner, read the
information given in the User's Guide
carefully. The User's Guide contains very
important observations relating to the
assembly, operation and maintenance of the
air conditioner.
The manufacturer does not accept
responsibility for any damages that may arise
due to non-observation of the following
instruction.
Damaged air conditioners are not to be put
into operation. In case of doubt, consult your
supplier.
Use of the air conditioner is to be carried
out in strict compliance with the relative
instructions set forth in the User's Guide.
Installation shall be done by professional
people, don't install unit by yourself.
For the purpose of safety , the air conditioner
must be properly grounded in accordance
with specifications.
Always remember to unplug the air
conditioner before opening inlet grill. Never
unplug your air conditioner by pulling on the
power cord. Always grip plug firmly and pull
straight out from the outlet.
All electrical ropairs must be carried out
by qualified electricians. Inadequate repairs
may result in a major source of danger for
the user of the air conditoiner.
Do not damage any parts of the air
conditioner that carry refrigerant by piercing
or perforating the air conditioner's tubes with
sharp or pointed items, crushing or twisting
any tubes, or scraping the coatings off the
surfaces. If the refrigerant spurts out and gets
into eyes, it may result in serious eye injuries.
Do not obstruct or cover the ventilation
grille of the air conditioner. Do not put fingers
or any other things into the inlet/outlet and
swing louver.
Do not allow children to play with the air
conditioner. In no case should children be
allowed to sit on the outdoor unit.
2
SAFETY PRECAUTIONS
Before starting to use the system, read carefully this"SAFETY PRECAUTIONS" to ensure a proper operation of the system.
Safety precautions described here are classified to " W ARNING" and " CAUTION". Precautions which are shown in the column of
" W ANING" means that an improper handing could lead to a grave result like a death, serious injury, etc. However, even if precautions
are shown in the column of " CAUTION", a very serious problem could occur depending on situation. Make sure to observe these safety
precautions faithfully because they are very important information to ensure the safety.
Symbols which appear frequently in the text have following meanings.
Strictly prohibited.
Observe instructions faithfully.
Provide a positive grounding.
When you have read through the manual, keep it always at hand for read consultation. If the operator is replaced, make sure to hand over
this manual to the new operator.
CAUTIONS FOR INSTALLATION
WARNING
The system should be applied to places as
office, restaurant, residence and the like.
Application to inferior environment such as an engineering shop, could cause equipment malfunction and
serious injury or death.
Do not install nearby the place where may
have leakage of flammable gas.
If the gas leakes and gathers around, it may cause the
fire.
Where strong winds may prevail, the
system should be fixed securely to prevent
a collapse.
The system should be installed by your
dealer or a professional installer.
Installation by yourself is not encouraged because
it could cause such problems as water leakage,
electrical shock or fire accident by some improper
handing.
CAUTION
Depending on the place of installation, a
circuit breaker may be necessary.
ON
OFF
Unless the circuit breaker is installed, it could
cause elecrical shocks.
Install on the place where can endure
the weight of air conditioner.
When you need some optional devices such as a humidifier, electric heater, etc., be sure to use the products
which are recommended by us. These devices should
be attached by a professional installer.
Installation by yourself is not encouraged because it
could cause such problems as water leakage, electrical
shock or fire accident by some improper handing.
Drain pipe should be arranged to provide a
positive draining.
If the pipe is arranged improperly, furniture or the
likes may be damaged by leaked water.
Make sure the system is grounded.
Bodily injury could result by a collapse.
CAUTIONS FOR OPERATION
You should refrain from exposing your body
directly to cool wind for a long time.
It could affect your physical condition or cause some
health problems.
The system should never be used for any
other purposes than intended such as for
preservation of food, flora and fauna, precision deices or work of art.
It could cause deterioration of food or other problems.
Bodily injury could result by a careless installation.
WARNING
Do not poke the air inlet or outlet with a
bar, etc.
Since the internal fan is operating with a high
speed, it could cause an injury.
CAUTION
Do not handle switches with a wet hand.
It could cause electric shocks.
3
Grounding cable should never be connected to a gas
pipe, city water pipe, lightning conductor rod or
grounding cable of telephone. If the grounding cable
is not set properly, it could cause electric shocks.
When any abnormal condition (scorching smell or others) is found, stop the operation immediately and turn
off the power switch. Then consult your dealer.
If you continue the operation without removing the
cause, it could result in a trouble, electric shock or fire.
Combustion apparatus should not be placed
allowing a direct exposure to wind of air conditioner.
Incomplete combustion could occur on the apparatus.
SAFETY PRECAUTIONS
CAUTION
Do not wash the air conditioner with water.
Do not install the system where the air outlet
reaches directly the flora and fauna.
Make sure to use a fuse of proper electric
rating.
It could cause electric shocks.
Neither stand on the air conditioner nor
place something on it.
There are risks of falling or injury by collapsed object.
Do not use the power switch to turn on or
off the system.
ON
OFF
It could cause a fire or water leakage. There is a risk of injury.
When operating the system simultaneously with a combustion
apparatus, indoor air must be ventilated frequently.
It will not be good for their health.
It is strictly prohibited to place a container of
combustible gas or liquid near the air conditioner or to spray it directly with the gas or liquid.
It could cause a fire accident.
Do not touch the air outlet section while
the swing louver is operating.
Use of steel or copper wire in place of a fuse is strictly
prohibited because it could result in a trouble or fire
accident.
Do not operate the system while the
air outlet grill is removed.
There is a risk of injury.
Do not use such equipment as a water
heater, etc. around the indoor unit or the
wire controller.
If the system is operated at the vicinity of such equipment which generates steam, condensed water may
drip during cooling operation or it could cause a fault
current or short-circuit.
Check occasionally the support structure of the unit for any damage
after a use of long period of time.
Insufficient ventilation could cause an oxygen deficiency accident. If the structure is not repaired immediately, the unit could topple down to cause
When cleaning the system, stop the operation and turn off the
power switch.
Cleaning should never be done while the internal fans are running with high
speed.
a personal injury.
Do not put water containers on the unit such as a flower vase, etc.
If the structure is not repaired immediately, the unit could topple down to cause
apersonal injury.
CAUTIONS FOR TRANSFER OR REPAIR
WARNING
Modification of the system is strictly prohibited. When the system
needs a repair, consult your dealer.
Improper practice of repair could cause water leakage, electric shock or fire. Improper practice of installation could cause water leakage, electric shock or fire.
When the air conditioner is relocated, contact your dealer or a professional installer.
4
SAFETY PRECAUTIONS
The machine is adaptive in following situation
1. Applicable ambient temperature range:
Rated Maximum Minimum
Indoor
Cooling
outdoor
DB C
WB C
DB C
WB C
Heating
Indoor
outdoor
DB C
WB C
DB C
WB C
2. If the supply cord is damaged, it must be replaced by the manufacturer or its
service agent or a similar qualified person.
3. If the fuse on PC board is broken please change it with the type of T3.15A /250VAC.
4. The wiring method should be in line with the local wiring standard.
5. Use copper wire only. The connecting cable should be H05RN-F 4G 0.75mm2.
The power cable should be H07RN-F 3G 2.5mm2. All the cables shall have got the
European allthentication certificate.
6. The power supply connects from the outdoor side.
7. The breaker of the air conditioner should be all-pole switch; and the distance
between its two contacts should be no less 3mm.
8. The indoor unit installation height is at least 2.5m.
27 32 18
19 23 14
35 43 -5
24 26 - 20 27 15
14.5 -- - 7 24 -7
6 18 --
Note:
Part of the power supply of the air conditioner are not prepared because of the
requirement of the dealer, the power supply should be provided for oneself.
5
PARTS AND FUNCTIONS
Indoor Unit
Fan(inside)
Motor(inside)
Evaporator
Air outlet gille
Outdoor Unit
Air inlet
Air outlet
Connecting piping
and electrical wiring
Drain hose
14
6
MALFUNCTION
please check the following things about your air conditioner before making a servie call.
Unit fails to start
Is the power source
switch adjust cut in?
ON
OFF
Power supply switch is
not ON.
Is the thermostat adjust
as required?
Isn't the swing louver
horizontal?
(At HEATING mode)
If swing louver is horizontal,
the blow wind does not reach
floor.
The wind does not blow
during heating operation
Isn't it warming up?
page 9
There is a irregularity in operation or abnormal sound is audible.
When the CHECK lamp flickers, an irregularity has occurred in the air conditioner.
Is city supply power in
normal?
Power
stoppage?
Isn't the signal receiving
section exposed to the
direct sunlight or strong
illumination?
Isn't the earth leakage
breaker in action?
It is dangerous. Turn off
the power supply switch
immediately and contact
the sales dealer.
Cooling or heating is not sufficient
Isn't the air filter dirty?
Isn't any doors or windows
left open?
Doesn't any obstacle
exist at the air inlet or
outlet?
Cooling is not sufficient
Isn't sun-shine invading
direct?
When the air conditioner does not operate properly after you have
checked the above mentioned items or when the following
phenomenon is observed, stop the operation of the air conditioner
and contact your sales dealer.
The fuse or breaker often shuts down.
Water drops off during cooling operation.
Isn't any unexpected
heating load generated?
Isn't the room much
crowded?
Flickering
Content
of defect
Flickering
Content
of defect
F1
The trouble
of the room
temp.sensor
E4
The trouble
of the comp.
too hot
F2
The trouble
of the pipe
temp. sensor
E5
The trouble of
the overload
current
F4
The trouble of
the overload
heating
The trouble of
the cooling ice
over
E6 E7 E8
The trouble of
the outdoor
room temp.
sensor
The trouble of
the outdoor
pipe temp.
sensor
F5 F7
The trouble
the wiring
controller
and outdoor
comumication
singlechip
bad
of
The trouble
of the
module
E0
The trouble
of the water
pump
E1
EA
voltage of
power supply
too high
E2
No load
The trouble
of the
overload
cooling
The trouble
the indoor
and outdoor
comumication
EC
Note:
This unit has a function of automatic restart system after recovering power stoppage. Please contact
the sales dealer if it is not required.
7
E3
of
EE
E2PROM
bad
MALFUNCTION
The followings are not malfunction
Water flowing
sound is heard.
Shuru
Shuru
Cracking sound is heard.
It smells.
During operation,
white fog comes
out of indoor unit.
It is switched into the FAN mode
during cooling.
The air conditioner can not be
restarted soon after it stops.
Unit does
not start
When the air conditioner is started, when the compressor starts or
stops during operation or when the air conditioner is stopped, it
sometimes sounds "shuru shuru" or "gobo gobo". It is the flowing
sound of the refrigerant, and it is not a trouble.
This is caused by heat expansion or contraction of plastics.
Air which blows out from the indoor unit sometimes smells.
The smell results from residents of tobacco smoke or cosmetics
stuck inside of unit.
When the air conditioner is used at restaurant etc. where dense
edible oil fume is always exists, white fog sometimes blows out
of air outlet during operation.
In this case consult sales dealer for cleaning the heat exchanger.
To prevent frost from being accumulated on the indoor unit heat
exchanger, it is sometimes automatically switched to the FAN mode
but it will soon return to the cooling mode.
Even if the operation switch is turned on, cooling, dehumidifying
or heating is not operable for three minutes after the conditioner is
stopped. Because the protecting circuit is activated.
(During this time air conditioner operates in fan
mode.)
Wait for
three
minutes
Air does not blow or the fan
speed can not be changed during
dehumidifying
During operation, operation mode
has changed over automatically.
Water or steam generates from
the outdoor unit during heating.
When it is excessively cooled during dehumidifying, the blower
automatically repeats reducing and lowering the fan speed.
Isn't the AUTO mode selected?
In the case of AUTO mode, operation mode is changed automatically from cooling to heating or vise-versa according to the room
temperature.
This results when frost accumulated on the outdoor unit is removed
(during defrosting operation).
8
CARE AND MAINTENANCE
Points to observe
Turn off the power supply switch. Do not touch with wet hand.
ON
OFF
CAUTION
Do not use hot water or volatileliquid.
Thinner
Do not open the inlet grill until fan stops completely.
Fan will continue rotating for a while by the law of inertia after operation is being stopped.
Cleaning
1. Clean the air filter by lightly tapping it or with the cleaner. It is more
effective to clean the air filter with water.
If the air filter is very dirty, dissolve neutral detergent in the lukewarm
water (approx. 30 C), rinse the air filter in the water, and thoroughly
wash the air filter off the detergent in the plain water.
2. After drying the air filter, set it up on the air conditioner.
CAUTION
Do not dry the air filter with fire.
Do not run the air conditioner without the air filter.
Do not
use!
Benzine
Tooth powder
Care and Cleaning of the unit
Clean with soft and dry cloth.
If it is very dirty, dissolve neutral detergent in the lukewarm water and make the cloth wet with the water.
After wiping, clean off the detergent using clean water.
Post-Season Care
Operate the unit with FAN mode on a fair day for about half a day to dry the inside of the unit well.
Stop operation and turn off the power supply switch. Electric power is consumed even the air conditioner is in stop.
Clean the air filter and set it in the place.
Pre-Season Care
See that there are no obstacles blocking the air inlet and air outlet of both indoor and outdoor units.
Make sure that the air filter is not dirty.
Cut in the power supply switch 12 hours before starting run.
9
CARE AND MAINTENANCE
"HOT KEEP"is operated in the following cases.
When heating is started:
In order to prevent blowing out of cool wind, the indoor unit fan stopped
according to the room temperature which heating operation is started. Wait
for approx. 2 to 3 minute, and the operation will be automatically changed
to the ordinary heating mode.
Defrosting operation (in the heating mode):
When it is liable to frost. the heating operation is stopped automatically
for 5 to 12 minutes once per approx. one hour, and defrosting is operated.
After defrosting is completed, operation mode is automatically changed
to ordinary heating operation.
When the room thermostat is actuated:
When room temperature increases and room temperature controller actuates, the fan speed is automatically changed to stop under low temperature
condition of indoor heat exchanger. When room temperature decreases,
air conditioner automatically changes over to ordinary heating operation.
WARMING OPERATION
Heat pump type warming
With the heat pump type warming, the mechanism of heat pump that concentrate heat of outdoor
air with the help of refrigerant to warm the indoor space, is utilized.
Defrosting operation
When a room is warmed with a heat pump type air conditioner, frost accumulates on the heat
exchanger of outdoor unit along with the drop of indoor temperature. Since the accumulated frost
reduces the effect of warming, it is necessery to automatically switch the operation to the defrosting
mode. During the defrosting operation, heating operation is interrupted.
Atmospheric temperature and warming capacity
Warming capacity of heat pump type air conditioner decreases along with the
drop of outdoor temperature.
When the warming capacity is not sufficient, it is
recommended to use another heating implement.
Period of warm-up
Since the heat pump type air conditioner employs a method
to circulate warm winds to warm the entire space of a room,
it takes time before the room temperature rises.
It is recommendable to start the operation a little earlier in a very cold morning.
10
INSTALLATION MANUAL FOR OUTDOOR UNIT
Confirm the following items for safe and comfortable use of air conditioner.
The installation work is to be burden on the sales dealer, and do not conduct it by yourself.
Installation place
Avoid installing the air conditioner
near the place where possibility of
inflammable gas leakage exists.
Explosion (Ignition) may occur.
Select the place so as not to annoy
neighbor with the hot air or noise.
Install the unit at well ventilated
place.
If some obstacle exist, it may cause
capacity reduction or noise increase.
Snow protection work is necessary
where outdoor unit is blocked up
by snow.
For details consult your sales dealer.
Install the air conditioner firmly on
the foundation that can fully support
the weight of the unit.
If not, it may cause vibration or noise.
It is advisable not to install the air conditioner at the following special place.
It may cause malfunction, consult the
sales dealer when you have to install
the unit on such a place.
The place where corrosive gas generates
(Hot spring area etc.)
The place where salt breeze blows
(Seaside etc.)
The place where dense soot smoke exists
The place where humidity is extraordinarily high
The place where near the machine which
radiates the electromagnetic wave
The place where voltage variation is considerably large
Electric work
The electric work must be burden on the authorized engineer with qualification for electric work and
grounding work, and the work must be conducted in accordance with electric equipment technical standard.
The power source for the unit is to be of exclusive use.
An earth leakage breaker should be installed.(This is necessary to prevent electric shock.)
The unit must be grounded.
When you change your address or the installation place
Special technology is required for removal or reinstallation of air conditioner, consult the sales dealer.
Besides, construction expense is charged for removal or reinstallation.
For inspection and maintenance
The capacity of air conditioner will decrease by contamination of inside of unit when it is used for about
three years although depending upon the circumstances under which it is used, and so in addition to the
usual maintenance service, special inspection/maintenance service is necessary. It is recommended to
make a maintenance contract (charged) by consulting your sales dealer.
11
INSTALLATION MANUAL FOR OUTDOOR UNIT
<Heat Pump model/Cooling Only model >
WARNING
BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION.
FAILURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH,
EQUIPMENT MALFUNCTION AND/OR PROPERTY DAMAGE. BE SURE TO READ INSTALLATION
MANUAL FOR INDOOR UNIT WITH THIS MANUAL.
1. Accessories
Edging
"Edging" for protection of electric wires from an
opening edge.
2. Selection of the place of installation
Select the place of installation satisfying the following conditions and, at the same time, obtain
a consent from the client or user.
Place where air circulates.
Place free from heat radiation from other heat sources.
Place where drain water may be discharged.
Place where noise and hot air may not disturb the neighborhood.
Place where there is not heavy snowfall in the winter time.
Place where obstacles do not exist near the air inlet and air outlet .
Place where the air outlet may not be exposed to a strong wind.
Place surrounded at four sides are not suitable for installation. A 1m or more of overhead
space is needed for the unit.
Mount guide-louvers to place where short-circuit is a possibility.
When installing several units, secure sufficient suction space to avoid short circuiting.
(1) Open space requirement around the unit
Air
inlet
Air outlet
L3
500
(Servicing
space)
L1
Distance
Air inlet
L2
Case
L1
L2
L3
I
open
300
150
II III
open
0
300
Unit: mm
500
open
150
(2) Installation where the area with strong winds.
Install the unit so that the air outlet section of the unit must NOT be
faced toward wind direction.
3. Installation of outdoor unit
(1) Installation
Fix the unit in a proper way according to the condition of a place where it is installed by referring to the following .
(a)
Concrete foundation
Anchor bolt
Note (1) Give enough room for the concrete
foundation to fix by anchor bolts.
Unit
Concrete foundation
To fix by bolts
Install the unit so that the angle of inclination must be less than 3 degrees.
Foundation anchor
Note (1) Place the concrete foundation deep enough.
Unit
Concrete foundation
Anchor bolt
12
NO
Wind direction
INSTALLATION MANUAL FOR OUTDOOR UNIT
4. Refrigerant piping
(1) Outline piping
Flare connection
Liquid
pipe
3-way valve
Indoor
unit
Gas pipe
Flare connection
3-way valve
(2) Piping size
Liquid pipe
Gas pipe
9.52x0.8mm
15.88x1.0mm
Install the removed flared nuts to the pipes to be connected,
then flare the pipes.
(3) Limitations for one way piping length and vertical height difference.
One way piping length: less than 15m.
Vertical height difference: Less than 5m.
Precautions for refrigerant piping
Do not twist or crush piping.
Be sure that no dust is mixed in piping.
Bend piping with as wide angle as possible.
Keep insulating both gas and liquid piping.
Check flare-connected area for gas leakage.
Outdoor
unit
90 + 0.5
(4) Piping connection
Connecting method
Apply refrigerant oil at half union and flare nut.
To bend a pipe, give the roundness as large as possible not to crash the pipe.
When connecting pipe, hold the pipe centre to centre then screw nut on by hand, refer to Fig.
Be careful not to let foreign matters, such as sands enter the pipe.
Forced fastening without centering may
damage the threads and cause a gas leakage.
Liquid pipe 9.52mm(3/8")
Pipe dia Fastening torque
Gas pipe 15.88mm(5/8")
13
42N.m
60N.m
INSTALLATION MANUAL FOR OUTDOOR UNIT
(5) Purging method ( the refrigerant is R407C)
Liquid pipe
To use vacuum pump
1
Detach the service port's cap of 3-way valve, the
valve rod's cap for 3-way valve and 3-way's, connect
the service port into the projection of charge hose
(low) for gaugemanifold. Then connect the projection
of charge hose (center) for gaugemanifold into
vacuum pump.
3-way valve
6.35mm(1/4'')
Gas pipe
12.7mm(1/2'')
3-way valve
Gaugemanifold
2
Open the handle at low in gaugemanifold, operate
vacuum pump. If the scale-moves of gause (low)
reach vacuum condition in a moment, check 1 again.
3
Vacuumize for over 15min. And check the level gauge
which should read -0.1 MPa (-76 cm Hg) at low
pressure side. After the completion of vacuumizing,
close the handle 'Lo' in gaugemanifold and stop the
operation of the vacuum pump.
Check the condition of the scale and hold it for 1-2min.
If the scale-moves back in spite of tightening, make
flaring work again, the return to the beginning of 3 .
4
Open the valve rod for the 3-way valve to and angle of
anticlockwise 90 degree.
After 6 seconds later, close the 3-way valve and male
the inspection of gas leakage.
5
No gas leakage?
6
Detach the charge hose from the service port, open
3-way valve and 3-way. Turn the valve rod
anticlockwise until hitting lightly.
7
To prevent the gas leakage, turn the service port's
cap, the valve rod'd cap for 3-way valve and 3-way's
a lottle more than the point where the torque increases
suddenly.
In case of gas leakage, tighten
parts of pipe connection. If
leakage stops, then proceed
steps.
Vacuum pump
2
Open
3
Close
3-way valve
3-way valve
90
90
If it does not stop gas leakage, discharge
whole refrigerants from the serice port.
6
After flaring work again and vacuumize,
fill up prescribed refrigerant from the gas
cylinder.
3-way valve
Service port
4
90
for 6 sec.
3-way valve
6
6
8
After attaching the each caps, check the gas leakage
around the caps.
CAUTION:
If the refrigerant of the air conditioner leaks, it is necessary to make
all the refrigerant out, then charge the liquid refrigerant into air
conditioner according to the amount marked on the name plate.
14
3-way valve
Valve rod cap
7
3-way valve
7
Valve rod cap
Service port cap
7
INSTALLATION MANUAL FOR INDOOR UNIT
1. Safety precautions
Please read these "Safety Precautions" first then accurately execute the installation work.
Though the precautionary points indicated herein are divided under two headings,
and , those points which are related to the strong possibility of an installation done in
CAUTION
error resulting in death or serious injury are listed in the section. However, there is
WARNING
also a possibility of serious consequences in relationship to the points listed in the
section as well. In either case, important safety related information is indicated, so by all means,
properly observe all that is mentioned.
After completing the installation, along with confirming that no abnormalities were seen from the
operation tests, please explain operating methods as well as maintenance methods to the user
(customer) of this equipment, based on the owner's manual.
Moreover, ask the customer to keep this sheet together with the owner's manual.
WARNING
This system should be applied to places as office, restaurant, residence and the like. Application to inferior environment
such as engineering shop could cause equipment malfunction.
Please entrust installation to either the company which sold you the equipment or to a professional contractor. Defects
from improper installations can be the cause of water leakage, electric shocks and fires.
Execute the installation accurately, based on following the installation manual. Again, improper installations can result in
water leakage, electric shocks and fires.
When a large air-conditioning system is installed to a small room, it is necessary to have a prior planned countermeasure
for the rare case of a refrigerant leakage, to prevent the exceeding of threshold concentration. In regards to preparing this
countermeasure, consult with the company from which you perchased the equipment, and make the installation accordingly.
In the rare event that a refrigerant leakage and exceeding of threshold concentration does occur, there is the danger of a
resultant oxygen deficiency accident.
For installation, confirm that the installation site can sufficiently support heavy weight. When strength is insufficient, injury
can result from a falling of the unit.
Execute the prescribed installation construction to prepare for earthquakes and the strong winds of typhoons and hurricanes,
etc. Improper installations can result in accidents due to a violent falling over of the unit.
For electrical work, please see that a licensed electrician executes the work while following the safety standards related
to electrical equipment, and local regulations as well as the installation instructions, and that only exclusive use circuits
are used.
Insufficient power source circuit capacity and defective installation execution can be the cause of electric shocks and fires.
Accurately connect wiring using the proper cable, and insure that the external force of the cable is not conducted to the
terminal connection part, through properly securing it. Improper connection or securing can result in heat generation or
fire.
Take care that wiring does not rise upward, and accurately install the lid/service panel. Its improper installation can also
result in heat generation or fire.
When setting up or moving the location of the air conditioner, do not mix air etc. or anything other than the designated
refrigerant (R407C) within the refrigeration cycle.
Rupture and injury caused by abnormal high pressure can result from such mixing.
Always use accessory parts and authorized parts for installation construction. Using parts not authorized by this company
can result in water leakage, electric shock, fire and refrigerant leakage.
WARNING
CAUTION
CAUTION
Execute proper grounding. Do not connect the ground wire to a gas pipe, water pipe, lightning rod or a telephone ground
wire. Improper placement of ground wires can result in electric shock.
The installation of an earth leakage breaker is necessary depending on the established location of the unit. Not installing
an earth leakage breaker may result in electric shock.
Do not install the unit where there is a concern about leakage of combustible gas.
The rare event of leaked gas collecting around the unit could result in an outbreak of fire.
For the drain pipe, follow the installation manual to insure that it allows proper drainage and thermally insulate it to prevent
condensation. Inadequate plumbing can result in water leakage and water damage to interior items.
15
INSTALLATION MANUAL FOR INDOOR UNIT
NOTICE
All Wiring of this installation must comply with NATIONAL, STATE AND LOCAL REGULATIONS. These
instructions do not cover all variations for every kind of installation circumstance. Should further information be
desired or should particular problems occur, the matter should be referred to your local distributor.
WARNING
BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH, EQUIPMENT
MALFUNCTION AND/OR PROPERTY DAMAGE.
(1) Preparation of indoor unit
Before or during the installation of the unit, assemble necessary optional panel etc. depending on the
specific type.
(2) Select places for installation satisfying following conditions and at the same time obtain the consent
on the part of your client user.
(a) Places where chilled or heated air circulates freely.
When the installation height exceeds 3m warmed air stays close to the ceiling. In such cases, suggest
our client users to install air circulators.
(b) Places where perfect drainage can be prepared and sufficient drainage.
(c) Places free from air disturbances to the suction port and blowout hole of the indoor unit, places
where the fire alarm may not malfunction or short-circuit.
(d) Places with the environmental dew-point temperature is lower than 28 C and the relative humidity
is less than 80%.
(When installing at a place under a high humidity environment, pay sufficient attention to the
prevention of dewing such as thermal insulation of the unit. )
(e) Ceiling height shall have the following height.
Installation space
100 or
100 or
more
more
50 or more
Combination with
silent panel
366mm
1000 or more
Obstacle
(3) Avoid installation and use at those places listed below.
(a) Places exposed to oil splashes or steam (e.g. kitchens and machine plants).
Installation and use at such places incur deteriorations in the performance or corrosion with the
heat exchanger or damage in molded synthetic resin parts.
(b) Places where corrosive gas (such as sulfurous acid gas) or inflammable gas (thinner, gasoline, etc)
in generated or remains. Installation and use at such places cause corrosion in the heat exchanger
and damage in molded synthetic resin parts.
(c) Places adjacent to equipment generating electromagnetic waves or high-frequency waves such
as in hospitals.
Generated noise may cause malfunctioning of the controller.
16
Unit: mm
INSTALLATION MANUAL FOR INDOOR UNIT
(4) Preparation for suspending the unit
(a) Figure of installation dimension: (unit: mm)
1024
452
100
55
225
When install the duct hidden type indoor unit, the return air box must be designed and installed, as
Figure3, Figure4.
The distance between the air outlet of duct and the air outlet of air conditioner should be no more than
1m.
The distance between the air outlet of duct and the air outlet of air conditioner should be no more than
1.0m(use white motor plug);
The distance between the air outlet of duct and the air outlet of air conditioner should be no more than
5.0m(use red motor plug).
225
123
22
Standard pressure 0 Pa , Middle pressure 50Pa
Building roof of installation
990
(Figure 3)
1.0m (use white motor plug)
5.0m(use red motor plug)
Ceiling
Air supply
Air outlet grille
Air supply
There should be
no obstacles
within 1m
Unit
Unit
Return air
17
A
Return air box
Return air
(Figure 4)
Return air box
INSTALLATION MANUAL FOR INDOOR UNIT
M8 wide expansion screw bolt
M8 hoisting screw
M8 wide lock washer
M8 screw nut
B
B amplified
Rivet
B
Air supply passage
B
Use screw to
fix top panel
28
Air supply
passage
A amplified
Unit
C
C amplified
Top panel of unit
Air outlet grille
(Figure 5)
(Figure 6)
Install the hoisting screw
Use M8 or M10 hoisting screw (4, prepare on site) (When the height of hoisting screw is more
than 0.9m, you must use M10), their gaps refer to the dimension of air conditioner, according to
the original structure and the following method to install.
Wood structure
Put up the frame wood on the beam and mount the hoisting screws.
Frame wood
Hoisting screw
Beam
New cement panel
Use embedded parts and foot screw, etc to mount.
Iron
Foot screw
(Knife type
embedded part)
(Louver type embedded part)
(hoisting foot screw for
connection pipe)
18
INSTALLATION MANUAL FOR INDOOR UNIT
Original cement panel
Use the in hole hinge, in hole plug or in hole screw.
Steel structure
Directly use angle steel or new angle
steel for support.
Suspending of indoor unit
Fix the cap of hoisting screw on and suspend them on the T groove of the hoisting part
of the unit.
Use gradienter to keep the level degree of the unit within 5mm.
!
In order to normally drain water, the drain hose should be mated according to the
installation manual. In order to avoid dew-forming, thermal insulation treatment
should be done.
Improper connection pipe may cause water enter indoor.
Requirements:
The indoor side drain hose should be thermal insulated.
The parts connected with indoor unit should be thermal insulated. Improper thermal insulation
may cause dew-forming phenomenon.
The drain hose should be downwards slant (over 1/100) and there should be no S-shaped bend.
Otherwise, abnormal sound may occur.
The horizontal length of the drain hose should be less than 20m. If the connection pipe is too
long, the supporting frame should be set every 1.5~2m to prevent pipe from rise and fall.
For the centralized connection pipe, please perform work as the following Figure shown.
Pay attention not to exerting external force to the connection part of the drain hose.
Hoisting screw
Notice
Suspending bolt
Angle steel for support
1m~1.5m
Supporting frame
Downward slant over 1/100
Thermal insulation material (user self-provided)
As large as possible
(about 10cm)
VP30
Downward slant over 1/100
S-shaped bend
Wall
Outside
Slant
Drain hose
(user self-provided)
19
INSTALLATION MANUAL FOR INDOOR UNIT
Material of connection pipe and thermal insulation
Material of connection pipe
Material of thermal insulation
Stiff PVC pipe VP 20mm (inside diameter)
Foam polyethylene pipe, thickness over 10mm
Confirm drainage
Perform test run to insure the condition of drainage, the connection part of the connection
should not leak water. The confirmation must be performed even if install in winter.
!
Warning
During installation, if refrigerant leakage occurs, please immediately take ventilation
measure. If the refrigerant gas meet the fire, it may generate poisonous gas.
After finishing installation work, please make sure there is no refrigerant leakage.
If the leaked refrigerant gas meet heater and oven, etc. fire sources, it may generate
poisonous
Material and dimension of connection pipe
Depenbing on the outdoor unit.For details,please refer to the operation manual attached
with outdoor unit.
The permitted length and fall of connection pipe
.
Material of
connection pipe
Dimension of
connection pipe
Connection of refrigerant pipe
When performing the connection work of flare nut, connect all
the refrigerant pipe.
When connecting the connection pipe of indoor unit, must
use two spanners to perform.
For the installation torque, please refer the following Table.
External diameter of
connection pipe (mm)
9.52 24.5(2.5kgf.m) 29.4(3.0kgf.m)
15.88
Phosphorus oxidized copper seamless pipe
(TP2) for air conditioner
Gas side
Liquid side
Installation torque (N.m)
78.4(8.0kgf.m)
20
15.88
9.52
Perform with two spanners
Add to installation torque (N.m)
98.0(10.0kgf.m)
INSTALLATION MANUAL FOR ELECTRIC WIRING
5. Electric wiring
Cautions: Use copper wire only.Parameters of connecting
line : H05RN-F 4G0.75mm2 ; Parameters of power supply
line : H07RN-F 3G2.5mm2.
Power supply :1PH,220-230V~,50Hz, connect from outside.
Wiring methods:
1.Wiring method of ring terminal
For connecting line which end is a ring,its wiring method
as shown in the right figure: remove wiring screw and pass
it through the end ring of connecting line,then connect it to
the terminal block and tighten screw.
2. Wiring method of straight terminal
For connecting line which end is not a ring, its wiring method
as follows: loosen wiring screw ans insert the end of connecting
line totally into the terminal block,then tighten the screw and pull
the connecting line slightly to confirm that it is clamped firmly.
Crimp connection method of connecting line
After finishing wiring.connecting line must be fastened by
wire clamp,which pressed on the external sheath of the
connecting line, as shown in the right figure:
Wiring of indoor unit
Open air inlet grill
Take the leading end of connecting line
Connect connecting line according to wiring methods
and wiring diagram of indoor and outdoor unit
Fasten connecting line according to crimp connection
method of connecting line.
Reinstall air inlet grill.
1.Installation fixing
Fix outdoor unit on the installation bracket
firmly using bot(M10) and nut, and keep it on horizontal level.
When installing on the wall or on the roof ,fix the bracket,
firmly to prevent earthquake or storm.
Be sure to use rubber-damping cushion to reduce unit vibration.
Wiring method of ring terminal
Correct crimp
connection of wire
Terminal block
1 2 3
L N
1 2 3
to power supply
1(L)
Incorrect crimp
connection of wire
Crimp connection
clamp
Indoor unit
terminal block
Outdoor unit
terminal block
2.Installation of drain elbow
Installation of drain elbow.(Only for heat pump type air conditioner,
no drain elbow for single cooling type).If use drain elbow,please
install as shown in the figure.
Do not use drain elbow in cold place (temperature successively
below 0 C)
3. Connection of outdoor piping
Connect the connecting pipe according to the piping connection
method
4.Wiring connection
1.Open the wiring cover and loosen the wiring clamp.
2.Lead the connecting wire out and pass it through the wiring clamp.
3.Connect the connecting wire according to the wiring method and
diagram
4. Confirm the ends of wire are connected well, safe and correct.
5. After finishing wiring, press the connecting wire according to the
wire crimp connection method and reinstall the cover.
21
Terminal
Wire clamp
Power supply
Connecting wire
between inner and outer
INSTALLATION MANUAL FOR WIRE CONTROLLER
1.Remove the upper cover of wire controller
The PC board is installed on the back cover of
wire controller. When remove the upper cover,
pay attention not to damage PC board.
Upper cover of
wire controller
HEALTH
C
F
SET RECOVERY
CHECK
Back cover of
wire controller
2.Install wire controller
**Drill 2 wall holes according to the position of the 2 screw holes on the back
*cover of wire controller, then hit wood in the wall holes. Put the 2 screw holes
*on the back cover of wire controller properly to its corresponding wood, then
*use wood screws to fix the back cover on the wall.
Note:
Install the back cover of wire controller on the even wall as possible as can.
When tightening the wood screw , do not use to tight force, otherwise the wire
controller may be damaged.
Note:
When connecting wire, please keep a
certain distance between signal wire and
electric wire. (over 10mm)
Dimension of signal wire:
Type of wire
Dimension
Shield wire (4 cords)
0.33mm
2
3.Indoor unit wire connection
Connect the terminals (A, B, C, D,) on the wire
controller to the terminals on the indoor PC
panel (A, B, C, D,) respectively.
Arrange wire from this part
AB CD
Back cover
HEALTH
C
F
wire controller
SET RECOVERY
CHECK
HEALTH
C
F
CHECK
SET RECOVERY
Upper cover
of wire
controller
The connection between indoor unit
and wire controller and indoor unit
and outdoor unit should use shield
wire. And the two ends of the shield
wire should be grounded,
otherwise, the disturbance will
cause unit abnormal operation.
Shield wire
Grounded
Grounded
Note:
Confirm the connection part of terminals is firm and will not touch shield wire.
4. Cover the wire controller upper cover
Pay attention not to press the connection wire.
Note: Do not touch PC board by hand.
22
CHECK AND TEST RUN
Other instruction
1.Set of the air sending of the fan motor
Before leaving factory, the rotation speed of fan motor has already been set at standard choice.
When the indoor unit uses free air sending and not needing to connect with duct, the fan speed
of indoor unit is set at standard choice. When the indoor unit needs to connect with duct, please
according to the following figure shown to change the connection of the connector installed on the
side of electric box.
Standard pressure
(Before leaving factory)
One side of the control box
Connector(White)
(White)
Middle pressure
One side of the control box
Connector(White)
(Red)
One side of Fan motor One side of Fan motor
The relative relation between fan speed and static pressure
Standard pressure
2. Cut and flaring method
Use pipe cutter to cut the pipe, the burrs must be removed.
After inserting the flarer, perform flared nut.
Flarer
A
Correct
Slant
Flaring dimensions as follows:
Connent pipe
Liquid pipe
Gas pipe
Broken
Pipe diameter
9.52mm (3/8'')
15.88mm (5/8'')
Burrs Too long
Incorr
Uncompleted
Middle pressure
50
Dimension A (mm)
1.0-1.2
1.4-2.2
3.Configuration of power supply
Air conditioner must use special power supply system (above 20A), and qualified electrician makes
wiring and fixing according to wiring regulations specified in national standard.
In socket, exactly distinguish earth wire with neutral wire and it is wrong to connect them together.
A leakage breaker must be installed.
Parameters of power supply: H07RN-F 3G 2.5mm
Connection method is Y-connection .If the power cord is damaged, it must be replaced by
professional people of manufacturer or its maintenance department or similar to avoid dangers.
2
4.Installation check and test run
Require customers to use air conditioner according to the operation manual.
The items checked during test run,please mark in
Is the wiring of indoor and outdoor unit secured firmly?
How about the thermal insulation of the pipe joint:
Is the electrical wiring between indoor and outdoor unit
connected to the terminal block firmly?
Is the display on the control board (LCD) correct?
Cooling normal?
Does the indoor temperature regulator work normally?
Is the power supply voltage conformed to the electrical
regulation?
23
No gas leakage on the pipe joint ?
Is the drainage hose arranged correct?
Is the earthing wire connected firmly?
Any noise?
For the power supply
1 shall be connected to the live wire.
2 shall be connected to the neutral wire.
Shall be connected to the earth wire.
Unit: Pa
0
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