Carrier 42LUVH025N, 42LUVH035N, 38LUVH025N, 38LUVH035N, 42LUVH045N Service Manual
...
Air Conditioner Service Manual
DC Inverter Hi-Wall
Model
Discription
Refrigerant type
Power supply
42/38LUVH025N
09K HP
R410A
1Ph,220-240V,50Hz
42/38LUVH035N
12K HP
R410A
1Ph,220-240V,50Hz
42/38LUVH045N
18K HP
R410A
1Ph,220-240V,50Hz
CONTENTS
1. Precaution .............................................................................................................................................. 1
1.1 Safety Precaution 1
1.2 Warning 1
2. Function ................................................................................................................................................. 4
3. Dimension .............................................................................................................................................. 6
3.1 Indoor Unit 6
3.2 Outdoor Unit 7
4. Refrigerant cycle diagram ..................................................................................................................... 8
5. Wiring diagram ....................................................................................................................................... 9
5.1 Indoor Unit 9
5.2 Outdoor Unit 10
6. Installation details .................................................................................................................................12
6.1 Wrench torque sheet for installation 12
6.2 Connecting the cables 12
6.3 Pipe length and the elevation 12
6.4 Air purging of the piping and indoor unit 13
6.5 Pumping down (Re-installation) 15
6.6 Re-air purging (Re-installation) 16
6.7 Balance refrigerant of the 2-way, 3-way valves 17
6.8 Evacuation 18
6.9 Gas charging 19
7. Capacity table .......................................................................................................................................20
8.Electronic function.................................................................................................................................23
8.1 Abbreviation 23
8.2 Display function 23
8.3 Protection 23
8.4 Fan-Only Mode 24
8.5 Cooling Mode 24
8.6 Drying mode 26
8.7 Heating mode 26
8.8 Auto mode function 29
8.9 Forced operation function 30
8.10 Action of 4-way valve 30
8.11 Two speeds outdoor fan function 30
8.12 Timer function 31
8.13 Sleep function mode 31
8.14 Auto-Restart function 31
8.15 Ionizer/Plasma dust collector function(optional) 31
8.16 Outdoor chassis heating cable (optional) 32
9. Troubleshooting ....................................................................................................................................32
9.1 Indoor Unit Error Display 33
9.2 Diagnosis and Solution 33
9.3 Key parts checking. 37
1
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
¾ 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.
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.
2
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.
¾ 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.
¾ 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 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.
3
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
4
2. Function
When the power supply is
interrupted and then restore, the
air conditioners automatically
restore the previous function
setting.
Tele Remote control (Optional)
Maintain the room temperature in accordance
W
ith the setting temperature.
The mode can be change by the room
temperature.
The louver can be set at the desired position
or swing up and down automatically
The function is usually used in rainy days
in springtime or damp areas.
The fan is turn to low speed (cooling/heating).
The unit will be turn off at the seventh hour.
The unit will decide the louver direction
according to
operation mode.
Turbo wind,high,med,low,breeze.
Restarting is for approx. 3 minutes..
Prevent the water being frozen on evaporator by
sensing the evaporator pipe temperature in cooling
mode
Room temperature sensor.
Pipe temperature sensor.
Indoor unit
Operation by remote controller
Sensing by room temperature
Room temperature control
Anti-freezing control in cooling
Time Delay Safety control
Indoor fan speed control
Two-direction air vane
Sleep mode auto control
Independent dehumidification
Air flow Direction control
Auto mode
Temp. Compensation
Flexible wiring connection
Auto defrost
Plasma (Optional)
Anti-cold function
Self-diag. function
Auto-restart function
Work voltage (160V-253V)
Ionizer (Optional)
Prevent the cold wind at the
beginning of unit start.
5
It protects the valves and prevents water from
dripping.
The unit has 3 mins delay between continuously ON/OFF
operations.
Outdoor unit
Power relay control
The hydrophilic fin can improve the heating efficiency at operation
mode.
Hydrophilic aluminum fin
It is only operated in the heating operation mode except defrosting
operation.
Anti-rust cabinet
Valve protection cover
4 way valve control
Made from electrolytic zinc steel sheet and anti-rust coated
components.
Low noise air flow system
Bird tail propeller fan makes the outdoor unit run more
quietly.
Discharge pipe temperature protect
Heating cable (Optional)
Driving heating at -15ć
6
3. Dimension
3.1 Indoor Unit
42LUVH025N
42LUVH035N 42LUVH045N
7
3.2 Outdoor Unit
38LUVH025N 38LUVH035N 38LUVH045N
8
4. Refrigerant cycle diagram
9
5. Wiring diagram
5.1 Indoor Unit
42LUVH025N
42LUVH035N
10
42LUVH045N
5.2 Outdoor Unit
38LUVH025N 38LUVH035N
11
38LUVH045N
Loading...