EXI12HA7
Service manual
SERVICE
MANUAL
MSG-07/09/12HRIN2
1
Service manual
1 Precaution
1.1 Safety Precaution
To prevent injury to the user or other people and property damage, the following instructions must be followed.
Incorrect operation due to ignoring instruction will cause harm or damage.
Before service unit, be sure to read this service manual at first.
1.2 Warning
Installation
Do not use a defective or underrated circuit breaker.
Use this appliance on a dedicated circuit.
There is risk of fire or electric shock.
For electrical work, contact the dealer, seller, a
qualified electrician, or an Authorized service center.
Do not disassemble or repair the product, there is risk of
fire or electric shock.
Always ground the product.
There is risk of fire or electric shock.
Install the panel and the cover of control box
securely.
There is risk of fire of electric shock.
Always install a dedicated circuit and breaker.
Improper wiring or installation may cause fore or electric
shock.
Use the correctly rated breaker of fuse.
There is risk of fire or electric shock.
Do not modify or extend the power cable.
There is risk of fire or electric shock.
Do not install, remove, or reinstall the unit by
yourself (customer).
There is risk of fire, electric shock, explosion, or injury.
Be caution when unpacking and installing the
product.
Sharp edges could cause injury, be especially careful of
the case edges and the fins on the condenser and
evaporator.
For installation, always contact the dealer or an
Authorized service center.
There is risk of fire, electric shock, explosion, or injury.
Do not install the product on a defective installation
stand.
It may cause injury, accident, or damage to the product.
Be sure the installation area does not deteriorate
with age.
If the base collapses, the air conditioner could fall with it,
causing property damage, product failure, and personal
injury.
Do not let the air conditioner run for a long time
when the humidity is very high and a door or a
windows is left open.
Moisture may condense and wet or damage furniture.
Take care to ensure that power cable could not be
pulled out or damaged during operation.
There is risk of fire or electric shock.
Do not place anything on the power cable.
2
There is risk of fire or electric shock.
Do not plug or unplug the power supply plug during
operation.
There is risk of fire or electric shock.
Do not touch (operation) the product with wet hands.
There is risk of fire or electric shock.
Do not place a heater or other appliance near the
power cable.
There is risk of fire and electric shock.
Do not allow water to run into electric parts.
It may cause fire, failure of the product, or electric shock.
Do not store or use flammable gas or combustible
near the product.
There is risk of fire or failure of product.
Do not use the product in a tightly closed space for a
long time.
Oxygen deficiency could occur.
When flammable gas leaks, turn off the gas and
open a window for ventilation before turn the
product on.
Do not use the telephone or turn switches on or off.
There is risk of explosion or fire.
If strange sounds, or small or smoke comes from
product. Turn the breaker off or disconnect the
power supply cable.
There is risk of electric shock or fire.
Stop operation and close the window in storm or
hurricane. If possible, remove the product from the
window before the hurricane arrives.
There is risk of property damage, failure of product, or
electric shock.
Do not open the inlet grill of the product during
operation. (Do not touch the electrostatic filter, if the
unit is so equipped.)
There is risk of physical injury, electric shock, or product
failure.
When the product is soaked (flooded or submerged),
contact an Authorized service center.
There is risk of fire or electric shock.
Be caution that water could not enter the product.
There is risk of fire, electric shock, or product damage.
Ventilate the product from time to time when
operating it together with a stove, etc.
There is risk of fire or electric shock.
Turn the main power off when cleaning or
maintaining the product.
There is risk of electric shock.
When the product is not be used for a long time,
disconnect the power supply plug or turn off the
breaker.
There is risk of product damage or failure, or unintended
operation.
Take care to ensure that nobody could step on or fall
onto the outdoor unit.
This could result in personal injury and product damage.
CAUTION
Always check for gas (refrigerant) leakage after
installation or repair of product.
Low refrigerant levels may cause failure of product.
Install the drain hose to ensure that water is drained
away properly.
A bad connection may cause water leakage.
Keep level even when installing the product.
To avoid vibration of water leakage.
Do not install the product where the noise or hot air
from the outdoor unit could damage the
neighborhoods.
It may cause a problem for your neighbors.
Use two or more people to lift and transport the
product.
Avoid personal injury.
Do not install the product where it will be exposed to
sea wind (salt spray) directly.
It may cause corrosion on the product. Corrosion,
particularly on the condenser and evaporator fins, could
cause product malfunction or inefficient operation.
Operational
Do not expose the skin directly to cool air for long
periods of time. (Do not sit in the draft).
This could harm to your health.
Do not use the product for special purposes, such
as preserving foods, works of art, etc. It is a
Service manual
consumer air conditioner, not a precision refrigerant
system.
There is risk of damage or loss of property.
Do not block the inlet or outlet of air flow.
It may cause product failure.
Use a soft cloth to clean. Do not use harsh
detergents, solvents, etc.
There is risk of fire, electric shock, or damage to the
plastic parts of the product.
Do not touch the metal parts of the product when
removing the air filter. They are very sharp.
There is risk of personal injury.
Do not step on pr put anything on the product.
(outdoor units)
There is risk of personal injury and failure of product.
Always insert the filter securely. Clean the filter
every two weeks or more often if necessary.
A dirty filter reduces the efficiency of the air conditioner
and could cause product malfunction or damage.
Do not insert hands or other object through air inlet
or outlet while the product is operated.
There are sharp and moving parts that could cause
personal injury.
Do not drink the water drained from the product.
It is not sanitary could cause serious health issues.
Use a firm stool or ladder when cleaning or
maintaining the product.
Be careful and avoid personal injury.
Replace the all batteries in the remote control with
new ones of the same type. Do not mix old and mew
batteries or different types of batteries.
There is risk of fire or explosion.
Do not recharge or disassemble the batteries. Do not
dispose of batteries in a fire.
They may burn of explode.
If the liquid from the batteries gets onto your skin or
clothes, wash it well with clean water. Do not use the
remote of the batteries have leaked.
The chemical in batteries could cause burns or other
health hazards.
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Service manual
2 Function
Indoor unit
Operation ON/OFF by remote controller
Sensing by room temperature
Room temperature sensor.
Pipe temperature sensor.
Room temperature control
Maintain the room temperature in accordance with the setting temperature.
Anti-freezing control in cooling
Prevent the water being frozen on evaporator by sensing
the evaporator pipe temperature in cooling mode
Time Delay Safety control
Restarting is for approx. 3 minutes..
Indoor fan speed control
Turbo wind, high, med, low, breeze.
Two-direction air vane
The unit will decide the louver direction according to operation mode.
Sleep mode auto control
The fan is turn to low speed (cooling/heating).
The unit will be turn off at the seventh hour.
Independent dehumidification
The function is usually used in rainy days in
springtime or damp areas.
Work voltage (160v-253v)
High efficiency (30%)
Tele Remote control (Optional)
Self-diag. function
Anti-cold function
Prevent the cold wind at
the beginning of unit start
Auto defrosting
Auto-restart function
Air flow Direction control
The louver can be set at the desired position or swing up and
down automatically
Auto mode
The mode can be change by the room temperature.
When the power supply is interrupted and then
restore, the air conditioners automatically
restore the previous function setting.
Flexible wiring connection
DSP High-speed Chip
Temp. Compensation
Driving heating at -15℃
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Service manual
Outdoor unit
Power relay control
The unit has 3 minutes delay between continuously ON/OFF operations.
Low noise air flow system
Bird tail propeller fan makes the outdoor unit run more quietly.
Hydrophilic aluminum fin
The hydrophilic fin can improve the heating efficiency at operation mode.
4 way valve control
It is only operated in the heating operation mode except defrosting operation.
Anti-rust cabinet
Made from electrolytic zinc steel sheet and anti-rust coated components.
Valve protection cover
It protects the valves and prevents water from dripping.
Discharge pipe temperature protect
4
3 Dimension
3.1 Indoor unit (Inverter Eco)
model W H A
7K/9K 750 250 188
12K 815 280 195
3.2 Outdoor unit (Inverter Eco)
Service manual
Dimension
Model
7K/9K/12K 780 540 250
5
W H D L1 L2 L3
530 315 590
Service manual
emoval
Noise lever (outdoor)
ngth
Max. difference in level
Application area
4 Specification
Model MSG-07HRIN2 MSG-09HRIN2 MSG-12HRIN2
Power source 220-240V~ 50Hz 220-240V~ 50Hz 220-240V~ 50Hz
Capacity BTU/H 7000(2700~9000) 9000(2730~10600) 12000(3070~13300)
Cooling
Heating
Moisture r
Max. input consumption W
Compressor
Refrigerant R407C g
Indoor fan motor
Air flow(indoor) Hi/Mid/Lo m3/h 500/410/320 520/430/330 560/460/380
Noise level (indoor) Hi/Mid/Lo dB(A) 35/32/26 36/32/26 36/32/26
Outdoor fan motor
Indoor unit
Outdoor unit
Refrigerant piping
Operation temp
Ambient temp
6
Input W 780(305~990) 990(305~1180) 1340(334~1494)
Running current A 4.8(1.35~6.2) 4.5(1.2~6.6) 5.8(1.60~7.60)
EER BTU/W.H,W/W
Capacity BTU/H 9000(2700~11000) 12000(2730~14000) 15000(3070~17060)
Input W
Running current A 4.4(1.35~6.7) 5.5(1.45~9.3) 6.8(1.6~10.6)
COP W/W 2.81 2.82 2.82
L/h 1.0 1.0 1.2
Model BG130X1C-20FZ BG130X1C-20FZ BG130X1C-20FZ
Type Rotary Inverter Rotary Inverter Rotary Inverter
Brand TOSHIBA TOSHIBA TOSHIBA
Refrigerant oil ml 370 370 370
Refrigerant oil type POE POE POE
Capacitor uF \ \ \
Input W RPG13H RPG13H RPG13C
Brand Welling Welling Welling
Capacitor uF 1.2uF/≥450VAC 1.2uF/≥450VAC 1.5uF/≥450VAC
Speed level 3 3 3
Hi/Mid/Lo speed ( rpm) 1050/950/750 1100/1000/800 1060/900/800
Input W YDK25-6-3 YDK25-6-3 YDK25-6-3
Capacitor uF 2.5uF/≥450VAC 2.5uF/≥450VAC 2.5uF/≥450VAC
Brand Welling Welling Welling
dB(A) 51 51 53
dimension (W*H*D) 750*250*188 750*250*188 815*280*195
Packing (W*H*D) 830*336*280 830*336*280 915*360*275
Net/Gross weight kg 8/10 8/10 9/12
dimension (W*H*D) 780*540*250 780*540*250 780*540*250
Packing (W*H*D) 910*575*335 910*575*335 910*575*335
Net/Gross weight kg 37/40 37/40 40/43
Liquid side mm φ6.35 φ6.35 φ6.35
Gas side mm φ9.53 φ9.53 φ12.7
Max. refrigerant pipe le
m2
9.0, 2.62 9.0, 2.62 9.0, 2.61
940(280~1140) 1240(283~1450) 1560(320~1773)
2300 2300 2600
850 850 1200
10 10 10
5 5 5
17℃~30℃ 17℃~30℃ 17℃~30℃
-15℃~45℃ -15℃~45℃ -15℃~45℃
14-18 18-24 20-30
5 Refrigerant cycle diagram
Service manual
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