Senville SENA/18HF/MOQ Repair manual

Owner’s Manual &
Installation Manual
INVERTER ONE-TWO/ONE-THREE/ONE-FOUR/ONE-FIVE
SPLIT-TYPE AIR CONDITIONER
SENA/18HF/MOQ
SENA/30HF/MOQ
SENA/36HF/MOQ
SENA/48HF/MOQ
IMPORTANT NOTE:
Read this manual carefully before installing
or operating your new air conditioning
unit. Make sure to save this manual for
future reference.
Please check the applicable models, technical
data, F-GAS(if any) and manufacturer information
from the“Owner's Manual - Product Fiche ”
in the packaging of the outdoor unit.
(European Union products only)

Owner’s Manual
Table of Contents
Safety Precautions
Unit Parts And Major Functions
1. Unit Parts
2. Operating temperature
3. Features
Manual Operations And Maintenance
Troubleshooting
........................................................................04
...................................................07
.............................................................................................................................................................................07
..................................................................................................................................................09
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..........................................12
............................................................................13

Installation Manual
Accessories
Installation Summary
Installation Diagram
Specifications
Outdoor Unit Installation
1. Select installation location
2. Install drain joint
3. Anchor outdoor unit
Refrigerant Piping Connection
1. Cut pipe
2. Remove burrs
3. Flare pipe ends
4. Connect pipes
Wiring
1. Outdoor Uint Wiring
2. Wiring Figure
Air Evacuation
1. Evacuation Instructions
2. Refrigerant Release Instructions
3. Note On Adding Refrigerant
4. Safety And Leakage Check
Test Run
........................................................................................17
.........................................................................18
...........................................................................19
.....................................................................................20
...................................................................21
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..........................................................24
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....................................................................................34
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..............................................................................................37
...........................33
Function of Automatic Wiring/Piping Correction
..................................................................................................................................................35
.....................................................................................................................................................36

IntroductionPrecautions
Read Safety Precautions Before Operation and Installation
The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION.
Incorrect installation due to ignoring instructions can cause serious damage or injury.
WARNING
This appliance can be used by children aged from 8 years and above and persons with reduced
This appliance is not intended for use by persons(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety. Children
should be supervised to ensure that they do not play with the appliance.
physical, sensory or mental capabilities or lack of experience and knowledge if they have been given
supervision or instruction concerning use of the appliance in a safe way and understand the hazards
involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be
made by children without supervision.
WARNINGS FOR PRODUCT USE
•
If an abnormal situation arises (like a burning smell), immediately turn o the unit and disconnect
the power. Call your dealer for instructions to avoid electric shock, re or injury.
•
Do not
insert fingers, rods or other objects into the air inlet or outlet. This may cause injury, since
the fan may be rotating at high speeds.
•
Do not
use flammable sprays such as hair spray, lacquer or paint near the unit. This may cause
fire or combustion.
•
Do not
operate the air conditioner in places near or around combustible gases. Emitted gas may
collect around the unit and cause explosion.
•
Do not
•
•
Do not
expose your body directly to cool air for a prolonged period of time.
•
•
If the air conditioner is used together with burners or other heating devices, thoroughly ventilate
the room to avoid oxygen deficiency.
Safety Precautions
Do not
allow children to play with the air conditioner. Children must be supervised around the
unit at all times.
operate your air conditioner in a wet room such as a bathroom or laundry room. Too
much exposure to water can cause electrical components to short circuit.
In certain functional environments, such as kitchens, server rooms, etc., the use of specially
designed air-conditioning units is highly recommended.
CLEANING AND MAINTENANCE WARNINGS
• Turn o the device and disconnect the power before cleaning. Failure to do so can cause
electrical shock.
•Do not
clean the air conditioner with excessive amounts of water.
WARNING
This symbol indicates the possibility
of personnel injury or loss of life.
CAUTION
This symbol indicates the possibility of
property damage or serious consequences.
Safety
Precautions
 

•Do not
clean the air conditioner with combustible cleaning agents. Combustible cleaning agents
can cause re or deformation.
CLEANING AND MAINTENANCE WARNINGS
CAUTION
• Turn o the air conditioner and disconnect the power if you are not going to use it for a long time.
• Turn o and unplug the unit during storms.
• Make sure that water condensation can drain unhindered from the unit.
•Do not operate the air conditioner with wet hands. This may cause electric shock.
•Do not use device for any other purpose than its intended use.
•Do not climb onto or place objects on top of the outdoor unit.
•Do not allow the air conditioner to operate for long periods of time with doors or windows open,
or if the humidity is very high.
ELECTRICAL WARNINGS
• Only use the specified power cord. If the power cord is damaged, it must be replaced by the
manufacturer , its service agent or similarly qualied persons in order to avoid a hazard.
• Keep power plug clean. Remove any dust or grime that accumulates on or around the plug. Dirty
plugs can cause re or electric shock.
•
•
•
•
•
•
•
Do not pull power cord to unplug unit. Hold the plug firmly and pull it from the outlet. Pulling
directly on the cord can damage it, which can lead to fire or electric shock.
Do not modify the length of the power supply cord or use an extension cord to power the unit.
Do not share the electrical outlet with other appliances. Improper or insucient power supply
can cause re or electrical shock.
If connecting power to xed wiring, an all-pole disconnection device which has at least 3mm
clearances in all poles, and have a leakage current that may exceed 10mA, the residual current
device(RCD) having a rated residual operating current not exceeding 30mA, and disconnection
must be incorporated in the xed wiring in accordance with the wiring rules.
For all electrical work, follow all local and national wiring standards, regulations, and the
Installation Manual. Connect cables tightly, and clamp them securely to prevent external forces
from damaging the terminal. Improper electrical connections can overheat and cause re, and may
also cause shock.
All electrical connections must be made according to the Electrical Connection
Diagram located on the panels of the indoor and outdoor units.
All wiring must be properly arranged to ensure that the control board cover can close properly. If
the control board cover is not closed properly, it can lead to corrosion and cause the connection
points on the terminal to heat up, catch re, or cause electrical shock.
The product must be properly grounded at the time of installation, or electrical shock may occur.
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioner’s circuit board (PCB) is designed with a fuse to provide overcurrent protection.
The specifications of the fuse are printed on the circuit board ,such as :
T20A/250VAC(for <24000Btu/h unit), T30A/250VAC(for >24000Btu/h unit)
WARNINGS FOR PRODUCT INSTALLATION
1. Installation must be performed by an authorized dealer or specialist. Defective installation can
cause water leakage, electrical shock, or re.
Safety
Precautions
 

WARNINGS FOR PRODUCT INSTALLATION
2. Installation must be performed according to the installation instructions. Improper installation
can cause water leakage, electrical shock, or re.
(In North America,installation must be performed in accordance with the requirement of NEC
and CEC by authorized personnel only.)
3.
Contact an authorized service technician for repair or maintenance of this unit. This appliance
shall be installed in accordance with national wiring regulations.
4.
Only use the included accessories, parts, and specied parts for installation. Using non-standard
parts can cause water leakage, electrical shock, re, and can cause the unit to fail.
5.
6.
Install the unit in a rm location that can support the unit’s weight. If the chosen location cannot
support the unit’s weight, or the installation is not done properly, the unit may drop and cause
serious injury and damage.
7.
8.
9.
10.
11.
Do not turn on the power until all work has been completed.
When moving or relocating the air conditioner, consult experienced service technicians for
disconnection and reinstallation of the unit.
How to install the appliance to its support, please read the information for details in "indoor unit
installation" and "outdoor unit installation" sections .
For units that have an auxiliary electric heater, do not install the unit within 1 meter (3 feet) of
any combustible materials.
Do not install the unit in a location that may be exposed to combustible gas leaks. If
combustible
gas accumulates around the unit, it may cause re.
Install drainage piping according to the instructions in this manual. Improper drainage may
cause water damage to your home and property.
Note about Fluorinated Gases
1.
This air-conditioning unit contains fluorinated greenhouse gases. For specific information on the
type of gas and the amount, please refer to the relevant label on the unit itself.
2. Installation, service, maintenance and repair of this unit must be performed by a certified
technician.
3. Product uninstallation and recycling must be performed by a certified technician.
4.
For equipment that contains fluorinated greenhouse gases in quantities of 5 tonnes of CO2
equivalent or more, but of less than 50 tonnes of CO2equivalent, If the system has a leak-
detection system installed, it must be checked for leaks at least every 24 months.
5. When the unit is checked for leaks, proper record-keeping of all checks is strongly recommended.
Safety
Precautions
 

Unit Parts
And Major
Functions
Unit Parts And Major Functions
Unit Parts
Wall-mounted type Duct / Ceiling type
Indoor unit
1. Panel frame
2. Rear air intake grille
3. Front panel
4. Air purifying lter & Air lter(behind)
5. Horizontal louver
6. LCD display window
7. Vertical louver
8. Manual control button(behind)
9. Remote controller holder
Outdoor unit
10. Drain hose, refrigerant connecting pipe
11. Connective cable
12. Stop valve
13. Fan hood
Indoor unit
1. Air outlet
2. Air inlet
3. Air lter
4. Electric control cabinet
5. Wire controller
Outdoor unit
6. Drain hose, refrigerant connecting pipe
7. Connective cable
8. Stop valve
9. Fan hood
(A) (B)
4
 

Unit Parts
And Major
Functions
Floor and standing type(console) Compact four-way cassette type
Indoor unit
1. Air ow louver (at air outlet)
2. Air inlet (containing air lter)
3. Remote controller
4. Installation part
5. Display panel
Outdoor unit
6. Drain hose, refrigerant connecting pipe
7. Connective cable
8. Stop valve
9. Fan hood
Indoor unit
1. Drain pump(drain water from indoor unit)
2. Drain hose
3. Air outlet
4. Air inlet
5. Air-in grill
6. Display panel
7. Remote controller
Outdoor unit
8. refrigerant connecting pipe
9. Connective cable
10. Stop valve
11. Fan hood
(C) (D)
 

Unit Parts
And Major
Functions
 
Operating Conditions
NOTE: For multi-split type air conditioners, one outdoor unit can be matched to dierent types of
indoor units. All of the pictures in this manual are for demonstration purposes only. Your air
conditioner may be slightly dierent, if similar in shape. The following pages introduce several kinds
of indoor units that can be matched with the outdoor units.
Operating temperature
When your air conditioner is used outside of the following temperature ranges, certain safety
protection features may activate and cause the unit to disable.
COOL mode HEAT mode DRY mode
Room Temperature 17°C - 32°C
(62°F - 90°F)
0°C - 30°C
(32°F - 86°F)
10°C - 32°C
(50°F - 90°F)
Outdoor
Temperature
0°C - 50°C
(32°F - 122°F)
-15°C - 24°C
(5°F - 75°F)
0°C - 50°C
(32°F - 122°F)
0°C - 52°C
(32°F - 126°F)
(For special
tropical models)
0°C - 52°C
(32°F - 126°F)
(For special
tropical models)
-15°C - 50°C
(5°F - 122°F)
(For models with
low temp. cooling
systems.)
FOR OUTDOOR UNITS
WITH AUXILIARY
ELECTRIC HEATER
When outside
temperature is below 0°C
(32°F ), we strongly
recommend keeping the
unit plugged in at all
time to ensure smooth
ongoing performance.
To further optimize the performance of your unit, do the following:
•Keep doors and windows closed.
•Limit energy usage by using TIMER ON and TIMER OFF functions.
•Do not block air inlets or outlets.
•Regularly inspect and clean air lters.
NOTE: Room relative humidity less than 80%. If the air conditioner operates in excess of this
gure, the surface of the air conditioner may attract condensation. Please sets the vertical air
ow louver to its maximum angle (vertically to the oor), and set HIGH fan mode.

 
Unit Parts
And Major
Functions
Features
Protection of the air conditioner
Compressor protection
•The compressor cannot restart for 3 minutes
after it stops.
•The unit is designed not to blow cold air on
HEAT mode, when the indoor heat exchanger
is in one of the following three situations and
the set temperature has not been reached.
A) When heating has just started.
B) During defrosting.
C) Low temperature heating.
•The indoor or outdoor fan stop running when
defrosting
Defrosting
•Frost may be generated on the outdoor unit
during a heat cycle when outdoor temperature
is low and humidity is high resulting in lower
heating eciency in the air conditioner.
•Under these conditions, the air conditioner will
stop heating operations and start defrosting
automatically.
•The time to defrost may vary from 4 to 10
minutes, depending the outdoor temperature
and the amount of frost buildup on the
outdoor unit.
Anti-cold air
Auto-Restart
In case of power failure, the system will
immediately stop. When power returns, the
Operation light on the indoor unit will flash. To
restart the unit, press the ON/OFF button on the
remote control. If the system has an auto restart
function, the unit will restart using the same
settings.
White mist emerging from the indoor unit
•A white mist may be generated due to a large
temperature dierence between air inlet and
air outlet on COOL mode in places with high
relative humidity.
•A white mist may be generated due to moisture
created in the defrosting process when the air
conditioner restarts in HEAT mode operation
after defrosting.
Noise coming from the air conditioner
•You may hear a low hissing sound when the
compressor is running or has just stopped
running. This sound is the sound of the
refrigerant owing or coming to a stop.
•You may also hear a low "squeaking" sound
when the compressor is running or has just
stopped running. This is caused by tempera
heat expansion and cold contraction of the
plastic parts in the unit when the temperature
is changing.
•A noise may be heard due to the louver
restoring itself to its original position when
power is rst turned on.
Dust blowing out from the indoor unit.
This is happens when the air conditioner has not
been used for a long time or during its rst use.
Smell emitting from the indoor unit.
This is caused by the indoor unit giving o smells
permeated from building materials, furniture,or
smoke.

Unit Parts
And Major
Functions
The air conditioner turns to FAN ONLY
mode from COOL or HEAT mode.
When the indoor temperature reaches the set
temperature setting, the compressor will stop
automatically, and the air conditioner turns to
FAN only mode. The compressor will start again
when the indoor temperature rises on COOL
mode or falls on HEAT mode to the set point.
Droplets of water may form on the surface of the
indoor unit when cooling occurs in relatively
high humidity (dened as higher than 80%).
Adjust the horizontal louver to the maximum air
outlet position and select HIGH fan speed.
Heating mode
The air conditioner draws in heat from the
outdoor unit and releases it via the indoor unit
during heating. When the outdoor temperature
falls, heat drawn in by the air conditioner
decreases accordingly. At the same time, heat
loading of the air conditioner increases due to
larger dierence between indoor and outdoor
temperature. If a comfortable temperature
cannot be achieved with the air conditioner
alone, it is recommended that you use a
supplementary heating device.
Lightning or a car wireless telephone operating
nearby may cause the unit to malfunction.
Disconnect the unit from its power source and
then re-connect the unit with the power source
again. Push the ON/OFF button on the remote
controller to restart operations.
Energy Saving Tips
•DO NOT set the unit to excessive temperature levels.
•While cooling, close the curtains to avoid direct sunlight.
•Doors and windows should be kept closed to keep cool or warm air in the room.
•
DO NOT place objects near the air inlet and outlet of the unit. This will reduce the efficiency of the unit.
•Set a timer and use the built-in SLEEP/ECONOMY mode if applicable.
•If you don’t plan to use the unit for a long time, remove the batteries from the remote control.
•Clean the air filter every two weeks. A dirty filter can reduce cooling or heating efficiency.
•Adjust louvers properly and avoid direct airflow.
Closing curtains during heating also
helps keep the heat in
Doors and windows should be
kept closed
 

Manual Operations And Maintenance
Manual Operations And Maintenance
Operation mode selection
Maintenance
While two or more indoor units are
simultaneously operating, make sure the modes
do not conict with each other. The heat mode
claims precedence over all other modes. If the
unit intially started to operate in HEAT mode, the
other units can operate in HEAT mode only. For
example: If the unit intially started operates under
COOL (or FAN) mode, the other units can operate
under any mode except HEAT. If one of the unit
selects HEAT mode, the other operating units will
stop operation and diplay ”--” (for units with
display window only) or the auto and operation
indication light will ash rapidly, the defrost
indication light will turn o, and the timer
indication light will remain on (for units without
a display window). Alternatively, the defrost and
alarm indication light (if applicable) wil light up,
or the operation indication light will ash rapidly,
and the timer indication light will turn o ( for
the oor and standing type).
If you plan to leave the unit idle for a long time,
perform the following tasks:
1. Clean the indoor unit and air lter.
2. Select FAN ONLY mode and let the indoor fan
run for a time to dry the inside of the unit.
3. Disconnect the power supply and remove the
battery from the remote control.
4. Check components of the outdoor unit
periodically. Contact a local dealer or a
customer service centre if the unit requires
servicing.
When the air conditioner is to be used
again:
•Use a dry cloth to wipe o the dust
accumulated on the rear air intake grille in
order to avoid the dust being dispersed from
the indoor unit.
•Check that the wiring is not broken o or
disconnected.
•Check that the air lter is installed.
•Check if the air outlet or inlet is blocked after
the air conditioner has not been used for a
long time.
Suggestion:
For units that feature an electric heater,
when the outside ambient temperature is
below 0°C (32°F), it is strongly recommended
that you to keep the machine plugged in so
as to guarantee smooth operation.
Optimal operation
To achieve optimal performance, please note the
following:
•Adjust the direction of the air ow so that it is
notblowing directly on people.
•Adjust the temperature to achieve the highest
possible level of comfort. Do not adjust the unit
to excessive temperature levels.
•Close doors and windows in COOL mode or
HEAT mode.
•Use the TIMER ON button on the remote
controller to select a time you want to start
your air conditioner.
•Do not place any object near the air inlet or air
outlet, as the eciency of the air conditioner
may be reduced and the air conditioner may
stop running.
•Clean the air lter periodically, otherwise
cooling or heating per formance may be
reduced.
•Do not operate unit with horizontal louvre in
closed position.
NOTE: Before you clean the air conditioner, be
sure to switch o the unit and disconnect the
power supply plug.
 

Troubleshooting
Problem Possible Causes
Unit does not
turn on when
pressing ON/
OFF button
The unit has a 3-minute protection feature that prevents the unit from
overloading. The unit cannot be restarted within three minutes of being
turned o.
Cooling and Heating Models: If the Operation light and PRE-DEF (Pre-heating/
Defrost) indicators are lit up, the outdoor temperature is too cold and the unit’s
anti-cold wind is activated in order to defrost the unit.
In Cooling-only Models: If the “Fan Only” indicator is lit up, the outdoor
temperature is too cold and the unit’s anti-freeze protection is activated in
order to defrost the unit.
The unit changes
from COOL mode
to FAN mode
The unit changes its setting to prevent frost from forming on the unit. Once
the temperature increases, the unit will start operating again.
The set temperature has been reached, at which point the unit turns o the
compressor. The unit will resume operating when the temperature fluctuates
again.
The indoor unit
emits white mist
In humid regions, a large temperature dierence between the room’s air and
the conditioned air can cause white mist.
Both the indoor
and outdoor units
emit white mist
When the unit restarts in HEAT mode after defrosting, white mist may be
emitted due to moisture generated from the defrosting process.
Troubleshooting
Common Issues
The following problems are not a malfunction and in most situations will not require repairs.
SAFETY PRECAUTIONS
If any of the following conditions occurs, turn o your unit immediately!
•The power cord is damaged or abnormally warm
•You smell a burning odor
•The unit emits loud or abnormal sounds
•A power fuse blows or the circuit breaker frequently trips
•Water or other objects fall into or out of the unit
DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AN AUTHORIZED
SERVICE PROVIDER IMMEDIATELY!
 

Troubleshooting
Problem Possible Causes
Dust is emitted from
either the indoor or
outdoor unit
The unit may accumulate dust during extended periods of non-use, which
will be emitted when the unit is turned on. This can be mitigated by covering
the unit during long periods of inactivity.
The unit emits a
bad odor
The unit may absorb odors from the environment (such as furniture, cooking,
cigarettes, etc.) which will be emitted during operations.
The unit’s filters have become moldy and should be cleaned.
The fan of the
outdoor unit
does not operate
During operation, the fan speed is controlled to optimize product operation.
The indoor unit
makes noises
A squeaking sound is heard when the system is OFF or in COOL mode. The
noise is also heard when the drain pump (optional) is in operation.
A squeaking sound may occur after running the unit in HEAT mode due to
expansion and contraction of the unit’s plastic parts.
Both the indoor
unit and outdoor
unit make noises
A low hissing sound may occur during operation. This is normal and is caused
by refrigerant gas flowing through both the indoor and outdoor units.
A low hissing sound may be heard when the system starts, has just stopped
running or is defrosting. This noise is normal and is caused by the refrigerant
gas stopping or changing direction.
The outdoor unit
makes noises The unit will make dierent sounds based on its current operating mode.
 

Troubleshooting
Troubleshooting Tips
When troubles occur, please check the following points before contacting a repair company.
Problem Possible Causes Solution
The unit
is not
working
Power failure Wait for the power to be restored
The power switch is o Turn on the power
The fuse is burned out Replace the fuse
Remote control batteries are dead Replace the remote control batteries
The unit’s 3-minute protection has
been activated Wait three minutes after restarting the unit
Poor cooling
performance
Temperature setting may be higher
than the ambient room temperature Lower the temperature setting
The heat exchanger on the indoor
or outdoor unit is dirty Clean the aected heat exchanger
The air filter is dirty Remove the filter and clean it according
to instructions
The air inlet or outlet of either unit
is blocked
Turn the unit o, remove the obstruction
and turn it back on
Doors and windows are open Make sure that all doors and windows are
closed while operating the unit
Excessive heat is generated by
sunlight Close windows and curtains during
periods of high heat or bright sunshine
Low refrigerant due to leak or
long-term use Check for leaks, re-seal if necessary and
top o refrigerant
The unit
starts and
stops
frequently
There’s too much or too little
refrigerant in the system
Check for leaks and recharge the system
with refrigerant
There is air, incompressible gas or
foreign material in the refrigeration
system.
Evacuate and recharge the system with
refrigerant
System circuit is blocked Determine which circuit is blocked and replace
the malfunctioning piece of equipment
The compressor is broken Replace the compressor
The voltage is too high or too low Install a manostat to regulate the voltage
Poor heating
performance
The outdoor temperature is lower
than 7°C (44.5°F)
Check for leaks and recharge the system
with refrigerant
Cold air is entering through doors
and windows Make sure that all doors and windows are
closed during use
Low refrigerant due to leak or
long-term use Check for leaks, re-seal if necessary and
top o refrigerant
 

Troubleshooting
Error Codes
Note:
For additional information on how to further diagnose the error codes on the unit, you can go to our website:
https://support.senville.com
 
LED Display
EH 00
EL 01
EH 03
EH 60
EH 61
EL 0C
PC 08
EC 53
EC 52
EC 54
EC 51
EC 07
PC 00
PC 01
PC 02
PC 0L
PC 04
PC 30
Indoor unit EEPROM parameter error
Indoor / outdoor units communication error
Indoor fan speed has been out of control
Indoor room temperature sensor T1 open circuit or short circuit
Evaporator coil temperature sensor T2 open circuit or short circuit
Refrigerant leakage detection
Overload current protection
Outdoor ambient temperature sensor T4 open circuit or short circuit
Condenser coil temperature sensor T3 open circuit or short circuit
Compressor discharge temperature sensor TP open circuit or short circuit
Outdoor unit EEPROM parameter error
Outdoor fan speed has been out of control
IPM malfunction or IGBT over-strong current protection
Over voltage or over low voltage protection
High temperature protection of IPM module
Outdoor ambient temperature too low.
Inverter compressor drive error
Low pressure protection(Only for Multi-Zone Units)
Cause
PC 31 High pressure protection(Only for Multi-Zone Units)

 
Accessories
Accessories
•
The air conditioning system comes with the following accessories. Use all of the installation parts and
accessories to install the air conditioner. Improper installation may result in water leakage, electrical
shock and re, or cause the equipment to fail. The items are not included with the air conditioner must
be purchased separately.
Manual
2~4
Name of Accessories
Qty(pc)
Shape
Name of Accessories
Qty(pc)
Shape
1
1
2
Drain joint
Seal ring
Copper nut
Name
Shape Quantity(pc)
(per box)
Copper line set
Liquid side
Gas side
Φ1/4" (6.35mm)
Φ3/8" (9.52mm)
Φ1/2" (12.7mm)
Connecting pipe assembly
1
The correct line set size for
your unit will be included
with your purchase.
Signal cable
(not included with 50 ft
line set)
1
Drain tube
Sealing clay
PVC tape roll
2.5" sleeve (9k, 12k, 18k)
3.5" sleeve (24k, 36k)
Edge protector for
sleeve
1
1
2 - 4
1
1
Φ3/8" (9.52mm)
Φ5/8" (16 mm)
3/8" to 1/2" adaptor
2~4

 
Installation Summary
INSTALLATION ORDER
L N
123
MC MC
4
5
Install the outdoor unit
Evacuate the refrigeration
system
Connect the wires
Connect the refrigerant pipes
Perform a test run
Installation
Summary
(L1) (L2)

 
Outdoor Unit Installation
Diagram
Installation Diagram
Installation Diagram
Installation
plate
Mounting screw
ST3.9×25-C-H
Refrigerant
pipe
Remote
controller
holder
Clip anchor
(2)
• This illustration is for demonstration
purposes only.
The actual shape of your air condtioner may
be slightly dierent.
Copper lines must be independently insulated.
•
•
CAUTION
•
To prevent wall damage, use a stud nder to
locate studs.
A minimum pipe run of 3 metres is required
to minimise vibration & excessive noise.
Two of the A, B, and C air circulation pathways
must be free from obstructions at all times.
•
•
NOTE: The installation must be performed in
accordance with the requirement of local and
national standards. The installation may be
slightly dierent in dierent areas.
Safety Precautions
1
2
3
5
4
1
Installation plate
Mounting screw
Clip anchor
(1)
Remote
controller
holder
5 4 3
2
The maximum
amount of the
connection cables is 5.
This section is for
reference only.
Drainage
Pipe
Outdoor Unit
Power Cable
SENA/18HF/MOQ
SENA/30HF/MOQ
SENA/36HF/MOQ
SENA/48HF/MOQ
Signal
cable

Specifications
 
Specifications
Number of units that can be used
together
Connected units 1-5 units
Compressor stop/start frequency Stop time 3 min or more
voltage uctuation within ±10% of rated voltage
Power source voltage voltage drop during start within ±15% of rated voltage
interval unbalance within ±3% of rated voltage
10m(32.8ft)
Indoor unit
Indoor unit
Indoor unit
Outdoor unit
15m(49ft)
15m(49ft)
Max.Height dierence
SENA/18HF/MOQ
Max. length for
all rooms
131 (40m)
197 (60m)
Max. length for
one indoor unit
82 (25m)
98 (30m)
Max. height different between
indoor and outdoor unit
49 (15m)
49 (15m)
Max. height different
between indoor units
SENA/30HF/MOQ
SENA/36HF/MOQ
SENA/48HF/MOQ
262 (80m)
262 (80m)
115 (35m)
115 (35m)
49 (15m)
49 (15m)
When installing multiple indoor units with a single outdoor unit, ensure that the length of the
refrigerant pipe and the drop height between the indoor and outdoor units meet the requirements
illustrated in the following diagram:
Model
number
Unit: ft
33 (10m)
33 (10m)
33 (10m)
33 (10m)