Impecca ISAH-2418B1 User manual

Air Conditioner—Indoor Unit—User Manual
Aire acondicionado—Unidad interior—Manual de usuario
Climatiseur—Unité intérieur—Mode d’emploi
Model N°: ISAH-2418B1/I

Read the following notices and information carefully to ensure proper operation of your air
conditioner unit.
This manual is solely provided for informational purposes and in no way constitutes a legally
binding document between the manufacturer, distributor, and end consumer.
Lea las siguientes indicaciones cuidadosamente para asegurar el correcto funcionamiento
de su unidad de aire acondicionado.
Este manual se proporciona únicamente con fines informativos y de ninguna manera
constituye un documento jurídicamente vinculante entre el fabricante, distribuidor y
consumidor final.
Lisez attentivement les notices dans ce document et respectez-les pour assurer le bon fonc-
tionnement de votre climatiseur.
Ce manuel n’est que fourni à titre indicatif et ne constitue en aucune façon un contrat ou
instrument légal entre le fabricant, le distributeur et le consommateur.

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INTRODUCTION:
Thank you for purchasing this quality Impecca air conditioner unit. To ensure the longest
life and highest energy eiciency of your unit, please have it installed by a qualified ser-
vice technician and carefully follow these operating instructions. Keep these instructions
in a safe place and consult them as needed.
Please note that constant enhancement and improvements to our air conditioning units
may mean that your model will slightly dier in appearance from the model pictured in
this manual, but the actual operation and installation of the unit remains unchanged.
REGULATORY NOTICES
This appliance is not intended for use by children or persons with reduced physical, sen-
sory or mental capabilities. This unit should only be used by experienced operators that
have carefully read the instructions concerning the use of the appliance. Children should
be supervised to ensure they stay away from the appliance.
To prevent possible harm to the environment or human health caused by uncontrolled
waste disposal, please recycle it in accordance with local laws to promote the sustainable
reuse of natural resources. To return your used device, please use local appliance dispos-
al collection sites or contact the retailer where the product was purchased for additional
guidelines.
WARNING
• Do not connect air conditioner to a power strip, extension cord, or other shared
power outlet. Using any electrical source other than a dedicated power outlet may
be a fire hazard.
• Always disconnect the power supply when cleaning the air conditioner. Other-
wise, it may lead to an electric shock.
• Do not spill water on the remote control, which may cause a short circuit and ren-
der your remote control unusable.
• Always have a qualified professional perform repairs on your air conditioner; nev-
er repair the air conditioner by yourself. May cause electric shock, unit damage,
or other injury. For additional information, please contact your dealer when you
need to repair air conditioner.
• Do not block air outlet or air flow around the unit. May cause malfunction or elec-
trical risk.
• If you need to relocate the air conditioner unit, always use a qualified installation
specialist. Performing the move yourself may cause personal injury or damage.
• Do not step on top panel of outdoor unit, or place heavy objects on top of the unit.
May cause unit damage or personal injury.

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• Do not extend fingers or other bodily appendages in or near the air outlet. May
cause personal injury or unit damage.
• The air conditioner must be properly grounded via a properly grounded electrical
outlet. Incorrect grounding may cause electric shock.
• Always install the air switch. If not, it may cause unit malfunction.
• Reminder: Installation & maintenance must always be performed by a trained &
qualified professional. Otherwise may cause personal injury, bodily harm, or irrep-
arable unit damage.
OPERATING CONDITIONS
The operating outdoor temperature range for the cooling unit is 18°C to 43°C; the heat
pump can operate within a range of -7°C to 43°C.
Operating
Temperature Ranges Indoor unit (°C) Outdoor unit (°C)
Maximum cooling 32° (23° WB) 43° (26° WB)
Maximum heating 27° 24°

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GETTING TO KNOW YOUR AIR CONDITIONER UNIT
air inlet
panel
aux.button
horizontal louver
air outlet
heating
indicator
temp.
indicator
cooling
indicator
power
indicator
IR receiver
window
drying
indicator
LCD
remote controller
Note: actual unit appearance may dier from the above diagram.

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REMOTE CONTROL
1. Power on/o
2. Operating mode button
3. +/- buttons
4. Fan button
5. Directional blade settings
6. Clock button
7. Timer on/timer o button
8. X-Fan button (or Blow button)
9. Temperature button
10. Turbo button
11. Light button
12. Sleep button
REMOTE CONTROL DISPLAY OVERVIEW
Send signal
Turbo mode
Set temperature
Set time
Timer on/timer off
Child lock
Up & down swing
Set fan speed
X-fan mode
Light
Temp. display type
: Set temperature
: Outdoor ambient temp.
: Indoor ambient temp.
Sleep mode
Clock
Heat mode
Fan mode
Dry mode
Cool mode
Auto mode
Operating mode
2
5
7
9
11
10
12
8
6
4
3
1

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USING THE REMOTE CONTROL
Before using the remote control, ensure the unit is powered on!
POWER ON/OFF
Press this button to turn the air conditioner on or o. Aer turning on the air conditioner,
the power symbol will appear on the remote control display and the unit display; the unit
will also emit a single beep.
OPERATING MODE BUTTON
Press the operating mode button to cycle through the various modes of operation.
AUTO, COOL, DRY, FAN, HEAT
• AUTO mode: When selecting the automatic mode, the temperature can not be
set on the remote controller display and must be changed on the air conditioner
unit. Press the Fan button to adjust fan speed; press the blade direction button to
adjust fan direction.
• COOL mode: Aer selecting the cooling mode, the air conditioner will begin op-
eration. The cooling indicator will appear on the display. Press the + button to
increase room temperature (warmer) and the - button to decrease room tempera-
ture (cooler). Press the Fan button to adjust fan speed; press the blade direction
button to adjust fan direction.
• DRY mode: Aer selecting the dehumidifier mode, the unit will begin operation.
The dehumidification indicator will appear on the display. The fan speed can not
be adjusted during operation; press the blade direction button to adjust fan di-
rection.
• FAN mode: Operate the fan to circulate air within the room without running the air
conditioner or heating units.
• HEAT mode: Warm the room using the heater (only on select models). Note that to
avoid blowing cold air, the unit will start warming immediately and begin sending
warm air within 1-5 minutes. The delay is based on current ambient temperature.
+/- BUTTONS
Press these buttons to increase or decrease the temperature in 1° increments. When con-
figuring the timer, use the buttons to increase and decrease the time before operation
commences or ends.

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FAN BUTTON
Press this button to adjust fan speed between automatic, low, medium, and high.
Note: while in cooling mode, the unit will automatically select a suitable fan speed based
on the ambient temperature. In dehumidifier mode, the fan only operates at low speed.
DIRECTIONAL AIR SETTINGS
Press this button to adjust the horizontal air blade swing angle. The fan angle can be
adjusted between the following settings:
• Max swing: the blade circulates air with the widest range.
• Fixed direction: the blade rests at a fixed angle.
• Directional range: The blade will oscillate in the lower, central, or upper angle rang-
es. Note: directional ranges are unavailable during air conditioner operation mode.
• No icon: the fan blade stops and remains fixed in the current position.
CLOCK BUTTON
Press this button to configure the unit clock time. Once depressed, the clock icon will flash on
the remote control display. Use the + or - buttons to change the time in 1 minute increments;
press and hold the + or - buttons to rapidly set the time. Once the correct time is reached, press
the clock button again to confirm the setting. The clock icon will stop flashing on the display.
TIMER ON/TIMER OFF BUTTONS
1. Réglage de l’unité pour éteindre automatiquement:
• Appuyez sur le bouton de la minuterie une fois (si l’unité est en cours d’exécution)
ou deux fois (si l’unité ne fonctionne pas) jusqu’à ce que les ‘o’ indicateur s’allume
• Utilisez les boutons + et - touche pour sélectionner le nombre d’heures avant que
l’appareil s’éteint automatiquement.
• Le temps sera programmé après 5 secondes d’inactivité.
2. Réglage de l’unité pour s’allumer automatiquement :
• Appuyez sur le bouton de la minuterie une fois (si l’unité n’est pas en cours d’ex-
écution) ou deux fois (si l’unité est en marche) jusqu’à ce que le ‘ON’ indicateur
s’allume.
• Utilisez les boutons + et - touche pour sélectionner le nombre d’heures avant que
l’appareil s’allume automatiquement.
• Le temps sera programmé après 5 secondes d’inactivité.

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REMARQUE: Les indicateurs «ON» et «OFF» peuvent être éclairés en même temps: l’appa-
reil se met automatiquement en marche et s’arrête selon les heures programmées.
X-FAN BUTTON
To avoid mold buildup, the X-Fan mode runs the interior and exterior unit fans to evap-
orate still water that remains in the air ducts. This mode is dierent than simply running
your indoor unit in Fan mode; in Fan mode only the indoor fan operates.
TEMPERATURE BUTTONS
Monitor the current indoor or outdoor temperature (select models only).
• Blank house icon: indicates the set temperature to be attained by the air conditioner unit.
• House with thermometer icon inside: displays the current interior ambient temperature
• House with thermometer icon outside: displays the current outdoor ambient temperature.
Note: select models do not feature outdoor temperature monitoring.
TURBO BUTTON
During cooling or heating modes, press the turbo button to enable quick heating or quick
cooling functions. Press the button again to disable turbo mode.
SLEEP BUTTON
During cooling, heating, or dehumidifier mode, press this button to enable the sleep func-
tion. Press the button again to disable the sleep mode.
LIGHT BUTTON
Press this button to turn on the display backlight on the indoor unit. Press the button
again to turn o the display backlight.
OTHER FUNCTIONS:
CHILD LOCK FUNCTION
Press and hold the + and - buttons simultaneously to enable child lock on the remote
control and prevent any operating mode modifications. Once locked, a padlock icon will
appear on the remote control display. If commands are entered while the remote control
is locked, the padlock icon will blink 3 times without sending the command signal to the
unit. Press and hold the + and - buttons again to disable the lock function.

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CHANGE TEMPERATURE UNITS (F°/C°)
While the unit is turned o, press the - and Mode button simultaneously to change be-
tween fahrenheit and celsius temperature displays.
REPLACING REMOTE CONTROLLER BATTERIES
1. Press down lightly with your thumb on the
“OPEN” mark and slide down in the direction
of the arrows.
2. Replace the batteries with two AAA size batteries.
3. Respect the polarity of the batteries (+ and - di-
rections) to avoid leakage and damaging the
remote control.
TIPS FOR USING YOUR REMOTE CONTROL
• Ensure the IR transmitter is pointed toward the IR receiver on the indoor unit.
• The remote control have a direct line of sight toward the unit to properly function;
the unit and remote control should not be further than 8 meters (20 feet) to prop-
erly function.
• Remote control signals can have easy interference with wireless telephones or flu-
orescent lighting.
• Always replace both batteries at the same time. Use batteries of the same type (do
not mix a lithium and alkaline battery).
• When the remote control will not be used for an extended period of time (greater
than 1 month), please remove the batteries to avoid leakage.
• If the display on the remote control unit does not function or is distorted or fading,
replace batteries immediately.
REMOTE CONTROL LOST OR BROKEN?
If the remote control is lost or broken, you can still use the auxiliary power button on the
unit to enable cooling functions. Open the panel as shown in the diagram below and
press the auxiliary power button. The unit will operate in automatic cooling mode. Con-
tact technical support for remote control replacement information.
IR signal transmitter battery
Battery compartment cover
Slide to remove
Slide to replace

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PRE-INSTALLATION INSTRUCTIONS
INSTALLATION SPACING DIAGRAM
At least 250cm
At least 15cm
At least 300cm
Space tothe ceiling
Space to the obstruction
At least 15cm
At least 15cm
Space to the wall
Space to the wall

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TOOLS FOR INSTALLATION
Gather the following tools before beginning your installation:
• Level
• Screw driver
• Impact drill
• Drill bits
• Pipe expander
• Torque wrench
• Open-end wrench
• Pipe cutter
• Leakage detector
• Vacuum pump
• Pressure meter
• Universal meter
• Inner hexagon spanner
• Measuring tape
NOTE:
• Always contact a local, qualified professional for installation.
• Never use an underrated electrical cord or outlet!
CHOOSING INSTALLATION LOCATION
BASIC REQUIREMENTS:
Installing the unit in the following places may cause malfunction. If installation in one of
these conditions is unavoidable, please consult the local dealer:
1. Avoid placement near heat sources, as well as sources of flammable or volatile
vapors, liquids, or gas in the air.
2. Avoid placement near high-frequency devices, such as welding equipment, serv-
ers and networking equipment, & medical equipment.
3. Avoid placement near beaches or coastal areas.
4. Never place the unit in locations with oil or fumes.
5. Never place the unit near sulfur gas.
6. Avoid placement in restricted zones except under special circumstances.
7. Never place the unit in the laundry.
8. Never place the unit indoors; it is not designed for indoor use.
OTHER CONSIDERATIONS:
1. Select a location with no obstructions near the air inlet and outlets.
2. Select a location where condensation can be dispersed without impacting the
building or others.
3. Select a location near the outdoor unit, with a nearby rated power outlet.
4. Select a location that is out of the reach of children.

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5. The installation location must withstand the weight of the indoor unit, including
the vibrations and noise generated by the unit.
6. The unit must be installed at least 2.5m (8 feet) above the floor level.
7. Do not install the unit above any electronics, computers, or appliances.
8. Keep the unit away from fluorescent lighting installations.
ELECTRICAL INSTALLATION REQUIREMENTS
SAFETY PRECAUTIONS:
1. You must follow all electrical safety regulations when installing the unit.
2. Use a properly rated grounded electrical outlet in accordance with local electrical
safety regulations.
3. Ensure that the power supply is properly rated for the required electrical capacity
for the air conditioner.
4. Properly connect the live, neutral and grounding wires to the power outlet.
5. Cut o the power supply when proceeding in any installation, maintenance, and
repairs of the units.
6. Do not turn on the electrical current before completing the installation process.
7. If the power supply cord is damaged, it must be replaced by the manufacturer
or a qualified professional to avoid hazard. Please contact technical support for
additional information.
8. Keep the thermostat interconnection cable away from all copper coils; coolant
fluid heats to high temperature and can melt the cable.
9. The appliance must be installed in full accordance with local building code and
regulations.
GROUNDING REQUIREMENTS:
1. The air conditioner is a Class I electrical device; it must be properly grounded. The
unit must always be installed by a qualified professional.
2. The yellow-green wire in the air conditioner is the grounding wire; it should not be
used for any other purposes.
3. The grounding resistance must comply with local electrical safety code.
4. The appliance must be positioned for the electrical outlet to be easily accessible.
5. An all-pole disconnection switch must have at least 3mm spacing in all electrical poles.

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6. Include an air switch with suitable capacity, according to the following table. An
air switch should include a magnetic buckle and heating buckle function to avoid
short-circuiting and overload.
Note: Never rely on a simple fuse to protect the electrical circuit; a grounded breaker
outlet should be installed.
AIR CONDITIONER POWER AIR SWITCH CAPACITY
9K, 12K: 10 amps
18K: 20 amps
24K: 25 amps
INSTALLATION INSTRUCTIONS
STEP 1: IDENTIFY INSTALLATION LOCATION
1. Following the steps in the pre-installation section, identify a proper installation
location and verify the location with the client.
STEP 2: INSTALL THE WALL-MOUNTING FRAME
1. Place the wall-mounting frame against the wall; ensure the frame is straight using
a level and mark the mounting hole locations on the wall.
2. Pose the frame on the ground.
3. Drill the mounting holes using an impact drill (the drill head size should be the
same as the expanding wall anchor.
4. Insert the wall anchors into the holes.
5. Mount the frame against the wall using self-tapping screws (ST4.2X25TA) and ver-
ify the frame is securely anchored by firmly pulling against it. If the frame is loose,
drill new mounting holes a few inches to the le or right of the original location.
IMPORTANT: Mounting hardware (screws and wall anchors) are not included.

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STEP 3: OPEN THE PIPING HOLE
Choose the position of the piping hole according to the direction of the exhaust pipe. The
position should be slightly lower than the wall mounted frame, as indicated below.
Left
Wall
Φ70mm
Right
Mark in the middle of it Level meter
Rear piping hole
Wall
Space
to the
wall
above
150mm
Space
to the
wall
above
150mm
Φ70mm
Rear piping hole
1. Open the piping hole with a diameter of 55 or 70cm depending on the select-
ed outlet pipe position (check corresponding table in outdoor unit installation
guide). In order to ensure proper draining, slant the piping hole downwards to-
ward the exterior by 5 to 10°
Indoor
5-10
outdoor
Φ55/
Φ70
2. Pay attention to dust particles and take appropriate safety measures when open-
ing the hole.

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STEP 4: OUTLET PIPE CONNECTION
1. The outlet pipe can be led out to the right, the rear right, to the le, or the rear le.
cut off
the hole
left right
left
rear left
right
rear right
2. When leading the pipe out along the right or le of the unit, cut out the hole in the
plastic casing.
STEP 5: CONNECT THE PIPE TO THE INDOOR UNIT
1. Direct the pipe joint towards the corresponding bell mouth.
2. Hand-tighten the union nut to the pipe joint.
union nutpipe joint pipe
3. Tighten the union nut with a torque wrench according to the table below:
Hex nut diameter Tightening torque
Ø6mm 15-20nm
Ø9.52mm 30-40nm
Ø12mm 40-55nm
Ø16mm 60-65nm
Ø19mm 70-75nm
4. Wrap the piping with suicient insulation and wrap the insulation shut with tape.

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STEP 6: CONNECT DRAIN HOSE
1. Connect the drain hose to the outlet pipe on the indoor unit.
outlet
pipe
drain hose
drain hose
tape
outlet pipe
drain hose
insulating pipe
2. Bind the connection with tape.
STEP 7: CONNECT THERMOSTAT CONTROL WIRES
1. Remove the cover panel, remove the screw on the wiring cover, and connect the
electrical wires and signal control wires according to the diagram below.
wiring cover
screw
panel

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2. Pass the electrical connection wires
through the cable cross-hole and pull
out via the front side.
3. Remove the wire clip; connect the
electrical wire to the wiring terminal
according to the color. Tighten the
screw and fasten the electrical wire
with the wire clip.
（for some model）
09、12、18、24K:
outdoor unit connection
N(1) 2 3
N(1) 2 3
GWC24MD-D3DNC2D
2 3N(1)
2 3N(1) L1 L2 G
Outdoor unit connection
NOTE:
• Aer tightening the screw, tug slightly on the electrical cord to ensure that it is
properly fastened.
• Never shorten or extend the electrical wire length by cutting it or adding extensions.
4. Replace the wiring cover and insert the screw.
5. Close the panel aer tightening the wiring cover screw.
IMPORTANT ELECTRICAL WIRING INFORMATION
• All wires of the indoor and outdoor unit must be connected by a qualified electrician.
• If the length of the electrical cord is unsuitable (too long or too short), contact
your dealer for replacement solutions. Never try to extend or shorten the wire
by yourself.
• Always ensure that the electrical outlet is easily accessible aer installation.
• If you prefer an installation without an electrical outlet, you must install a dedi-
cated circuit breaker for the unit. The circuit must be all-pole parting; the contact
parting distance must be greater than 3mm.
electrical
connection wire
cable-cross
hole

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STEP 8: BIND PIPES & DUCTING
1. Bind the connection pipe, power cord, and drainage hose using the included bands.
indoor unit gas
pipe
indoor and
outdoor power cord
liquid pipe
drain hose
band
drain hose
band
connection pipe
indoor power cord
2. At the end of the binding, ensure the electrical cord and drain hose are bound
independently and never kinked.
3. Never cross or intersect the electrical wire and the control wire; this can lead to
interference during operation.
4. The gas and liquid pipes should be bound separately.
STEP 9: HANG THE INDOOR UNIT
indoor outdoor
wall pipe sealing gum
upper hook
lower hook of
wall-mounting frame
1. Place the bound pipes inside the wall pipe and pass them through the wall hole.
2. Hang the interior unit on the wall mounting frame.
3. Stu the gaps in the wall with sealing gum or foam.
4. Attach the wall pipes
5. Verify that the indoor unit is firmly and securely mounted to the wall.

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POST-INSTALLATION VERIFICATIONS
Before commencing operation of the air conditioner, perform the following checks and
verifications:
Check Possible danger or malfunction if the verification
is ignored or not performed properly.
Is the unit installed firmly? The unit may fall, shake, or emit loud noises.
Has the refrigerant circuit
been tested for leaks?
A leaking system may lead to insuicient cooling or
heating capacity and cause other environmental hazards.
Is the heat pipeline
suiciently insulated?
Improper insulation may cause condensation
and water buildup.
Does water drain correctly
from the unit?
Improper evacuation may cause condensation
and water buildup.
Is the electrical supply rated
for the listed requirements
on the nameplate of the
unit installed?
May cause malfunctions or damage the unit.
Underrated installations may cause fire, shock,
or even death.
Is the unit properly grounded? May cause malfunctions or damage the unit.
Improper grounding may cause fire, shock, or even death.
Does the electrical cable
meet specifications?
May cause malfunctions or damage the unit.
Improper wiring may cause fire, shock, or even death.
Are there any obstructions
to the air intake or output?
May cause malfunctions or damage the unit.
May lead to insuicient cooling or heating capacity.
Is any dust caused by instal-
lation cleaned o and are
all the packaging materials
properly disposed of?
May cause malfunctions or damage the unit.
May lead to insuicient cooling or heating capacity.
Are the gas and liquid valve
connection pipes open and
correctly connected?
May cause malfunctions or damage the unit.
May lead to insuicient cooling or heating capacity.
TESTING UNIT OPERATION
1. PREPARATION
• Ask for client inspection of the installation and perform the pre-operation verifi-
cations with client.
• Specify any important operating instructions to the client.