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English
•
Install the air conditioner, power supply wiring, remote
controller wiring and transmission wiring at least 1
meter away from televisions or radios to prevent image
interference or noise.
(Depending on the radio waves, a distance of 1 meter may
not be sufficient to eliminate the noise.)
•
Do not install the air conditioner in places such as the
following:
1. Where there is mist of oil, oil spray or vapour for
example a kitchen.
Resin parts may deteriorate, and cause them to fall out
or water to leak.
2. Where corrosive gas, such as sulfurous acid gas, is
produced.
Corrosion of copper pipings or brazed parts may cause
the refrigerant to leak.
3. Where there is machinery which emits electromagnetic
waves.
Electromagnetic waves may disturb the control system,
and cause malfunction of the equipment.
4. Where flammable gases may leak, where carbon fibre
or ignitable dust is suspended in the air or where volatile
flammables, such as thinner or gasoline, are handled.
If the gas should leak and remained around the air
conditioner, it may cause ignition.
2. BEFORE INSTALLATION
•
Make sure to use the R410A refrigerant before the
installation work.
(Otherwise, the unit can not operate normally.)
•
For installation of outdoor unit, refer to the installation
manual attached to the outdoor unit.
•
Do not throw away the accessories required for installation
until the installation is finished.
2-1 PRECAUTION
•
Be sure to instruct the customer how to properly operate
the system (particularly the cleaning of air filter, operation
method, temperature adjusting method) showing the
attached operation manual to the person.
•
Do not install the unit where the atmosphere is salty
such as near the seaside, where the voltage frequently
fluctuates or in a vehicle or a boat.
2-2 ACCESSORIES
Check if the following accessories are included in the indoor
unit.
Name
Connection pipings
Drain
plug cap
Insulation
for Drain
plug
Clamp
Hanging
bolt for fan
motor
Quantity
1 pc.
(125-250 type)
For each 1 pc.
(400 · 500 type)
1 pc.
1 pc.
3 pcs.
1 pc.
Shape
(Gas
piping)
(Liquid
piping)
(only
500MY16)
(Gas
piping)
Location
Partition plate
Name
Bolts (for flanges)
Quantity
14 pcs.
(125 · 200 type)
30 pcs.
(250 type)
18 pcs.
(400 type)
36 pcs.
(500 type)
Shape
M8×20
Location
Partition plate (However, 2 bolts and 2 nuts are used for
flange temporary fixing.)
Name
Nuts (for flanges)
[Others]
•
Operation
manual
•
Installation
manual
Quantity
14 pcs.
(125 · 200 type)
30 pcs.
(250 type)
18 pcs.
(400 type)
36 pcs.
(500 type)
Shape
M8
Location
Partition plate (However, 2 bolts and 2 nuts
are used for flange temporary fixing.)
Stay for
control panel
2-3
CARRY OUT THE WORK GIVING
CAUTION TO THE FOLLOWING ITEMS
AND AFTER THE WORK IS COMPLETED
CHECK THESE AGAIN.
1. Items to be checked after the installation work is
completed
Items to be checked
In case of defective
Check
column
Are the air conditioner rigidly
fixed?
Drop · vibration · noise
Are the installation work of the
air conditioner complete?
Does not operate · burnout
Have you carried out a
leakage test with the test
pressure specified in the
outdoor unit installation
manual?
Does not cool / Does not
heat
Is the insulation of refrigerant
piping and drain piping
completely carried out?
Water leakage
Does the drain flow out
smoothly?
Water leakage
Is the power supply voltage
identical to that stated in the
manufacturer’s label on the air
conditioner?
Does not operate · burnout
Are you sure that there is no
wrong wiring nor piping or no
loose wiring?
Does not operate · burnout
Is earthing completed?
Danger in case of leakage
Are the sizes of electric wiring
according to the specification?
Does not operate · burnout
Is any of air outlets or inlets of
the air conditioner blocked with
obstacles?
(It may lead to capacity drop
due to fan speed drop or
malfunction of equipment.)
Does not cool / Does not
heat
Have you recorded the
refrigerant piping length and
the refrigerant charge added?
Refrigerant charge amount
is not clear
Make sure to recheck the items of “SAFETY
PRECAUTIONS”.
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