Aisin AXGP096E1NHS User manual

Applicable models
AXGP096E1NHS
AWGP180E1NHS
READ THESE OPERATING INSTRUCTIONS CAREFULLY BEFORE USING THE UNIT.
Follow the safety considerations listed in this manual.
Keep this Operation Manual in a handy place for future reference.
Upon change of ownership, transfer this manual to the equipment owner.
Read this manual along with the Maintenance Instruction of the indoor unit.
This manual should be stored along with the Maintenance Instruction.
OPERATION MANUAL
Aisin Gas Heat Pump Air Conditioner
Outdoor Unit
WARNING: If the information in these instructions is not followed
exactly, a fire or explosion may result causing property damage,
personal injury or loss of life.

2
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CONTENTS
1. SAFETY CONSIDERATIONS .......................2
2. WHAT TO DO BEFORE OPERATION..........8
3. OPERATION RANGE..................................14
4. OPERATION PROCEDURE........................14
5. OPTIMUM OPERATION..............................33
6.
RECOMMENDATION OF MAINTENANCE ....33
7. ADDITIONAL ITEMS OF INFORMATION
TO REVIEW.................................................34
8. TROUBLE SHOOTING................................36
9. REFARENCE INFORMATION.....................37
10. WARRANTIES AND LIABILITIES ...............39
11. AFTER SALE SERVICE ..............................39
1. SAFETY CONSIDERATIONS
Read these SAFETY CONSIDERATIONS for
Operations carefully before installing the unit and
be sure to install it correctly. After completing the
installation, make sure that the system operates
properly during commissioning.
Meaning of DANGER,WARNING,CAUTION and
NOTESymbols.
DANGER
DANGER
Indicates an imminently
hazardous situation which, if not
avoided, may result in death or
serious injury.
WARNING
Indicates a potentially hazardous
situation which, if not avoided,
may result in death or serious
injury.
CAUTION
Indicates a potentially hazardous
situation which, if not avoided,
may result in minor or moderate
injury. It may also be used to alert
against unsafe practices.
NOTE
Indicates situations that may result
in equipment or property-damage
accidents only.
Indicates a prohibited action.
Indicates an action or requirement
that must be observed.
Do not install the unit yourself.
Improper installation may result in water
leakage, electric shock, a fire or other
hazards. Ask your dealer to carry out the
installation work.
Do not install any additional options
yourself.
Improper installation may result in water
leakage, electric shock, a fire or other
hazards. Be sure to use only the specified
options and have them installed by your dealer.
Do not install the unit in the area where
flammable materials are present.
Installing a unit in such location could cause
a fire, an explosion or other hazards.
Stop operation, turn off the power and
contact your dealer immediately when
any abnormalities are noticed during
operation. (burning smells, smoke, etc.)
Leaving the unit running under such
circumstances may damage the unit, or
result in electrical shock, a fire or other hazards.
If any refrigerant vapor leaks,
discontinue use of the product, ventilate
the area thoroughly and extinguish any
open flame near the product right away
and contact your dealer.
Toxic gas may be produced if the refrigerant
vapor comes into contact with other
flammable or oxidising materials from
devices such as fan, heater, stove, cooking
device, etc.
For refrigerant vapor leakage, consult
with your dealer.
Refrigerant vapor is heavier than air and
replaces oxygen. A massive leak could lead
to oxygen deficiency, especially in basements,
and a suffocation hazard could occur.
Safely dispose of all packing materials.
Packaging materials, such as nails and
other metal or wooden parts may cause
cuts, pricks, or other injuries.
Should overheating or overcooling of the
conditioned space occur, or the gas supply
fail to shut off, shut off the manual gas
valve to the appliance before shutting
off the electrical supply.

3
When installing the unit in a small room,
take measures to keep refrigerant
concentration from exceeding allowable
safety limits in case of refrigerant
leakage.
Refrigerant vapor is heavier than air and
replaces oxygen. Excessive refrigerant in a
closed space can lead to oxygen deficiency,
especially in a small room and a suffocation
hazard could occur.
If equipment utilizing a burner, such as a
cooking stove or a room heater, is used
in the same room as the indoor unit, be
sure to ventilate the room sufficiently to
avoid the danger of oxygen deficiency.
Failure to do so may cause a suffocation
hazard.
Tear apart and throw away plastic
packing bags so that children will not
play with them.
Children playing with plastic bags face the
danger by suffocation.
Do not install the outdoor unit indoor or
in a location into which exhaust gas
could flow.
Make sure that exhaust gas is not being
discharged near an air intake port or
windows where it could be drawn into the
room and cause gas poisoning or
suffocation.
Be sure to ground the unit.
Improper grounding may cause electrical
shock or a fire.
Do not connect the ground wire to utility
pipes, arrester, or ground wires for
electric devices.
A high surge current from lighting or other
sources may cause damage to the air
conditioner.
Do not block the air intake or exhaust
vents of the outdoor unit.
Carbon monoxide produced by the
incomplete combustion may cause gas
poisoning.
Do not install the unit where volatile oil
constituent such as cooking oil or
machine oil suspends in the air.
Doing so may cause the unit to crack, or
may be a cause of electrical shock, a fire or
other hazards.
Do not dismantle, modify or repair the
unit by yourself.
Improper repair and maintenance may
result in water leakage, electrical shock, a
fire or other hazards. Contact your dealer to
perform this work. Only use included
accessories that are specifically designed
for use with the equipment and have them
installed by qualified technician.
Do not install the unit where the smoke
from oil fill, for example, in a kitchen or
where volatile gas, corrosive gas or
metallic dust may beproduced.
Doing so may cause a fire, malfunction or
other hazards.
When any fuel gas leaks from the
outdoor unit, shut off the fuel supply at
the main valve and contact your dealer
immediately.
May cause a fire or an explosion by the
ignition sparks or open flame near by.
When the unit is submerged in water
affected by acts of nature such as floods
or hurricanes, turn off the main power
circuit breaker and contact your dealer.
Operating the unit continuously may cause
malfunction, electrical shock or a fire.
Never use the same pipe for condensa-
tion of water vapor in the exhaust gas
from the outdoor unit and drain water
condensed from the indoor unit.
If exhaust gas enters the building, it could
cause gas poisoning or suffocation.
Always discharge exhaust gas to the
outside of building, so it will not cause
adverse affects in the surrounding area.
If the air intake draws exhaust gas from a
vent or a drainage, it may cause lack of
oxygen and/or carbon poisoning.
Be sure to install the exhaust pipe to
lead exhaust gas to the open air.
In the situation where the exhaust pipe
needs to run through closed drainage/gutter
or into the same location as indoor unit
condensation drainage goes, make sure
that exhaust gas disperses in to the open
air. Failure to do so may lead exhaust gas
into the room, cause lack of oxygen and/or
carbon poisoning.

4
WARNING
Do not expose your body directly to the
cold or warm air flow for a long time. Do
not cool or heat the room too much.
Prolonged exposure may cause health
problems or illness.
Make sure that all electrical work is car-
ried out by qualified technician accord-
ing to local, state, and national
regulations.
Improper electrical construction may lead to
electrical shock or a fire.
Install the unit on a foundation strong
enough to withstand its weight.
Insufficient strength of foundation may
cause the unit to tip over, resulting in
injuries or other accidents.
Do not put fingers, sticks, or any foreign
object into the air inlet, air outlet or
horizontal flap of the unit.
Since the fan rotates at high speed during
operation, it may cause injury.
Do not put fingers, sticks, or any foreign
object into the fan since it may start to
work suddenly even though it has
stopped.
Doing so may cause injury.
When a fuse blows out, never replace it
with one of incorrect ampere ratings or
different wires.
Using incorrect fuses or wires as a
replacement may cause a fire or
malfunction. Always replace any blown fuse
with a fuse of the same specification.
Contact your dealer to move and
reinstall the air conditioner.
Incomplete installation may result in water
leakage, electric shock, a fire or other
hazards.
Never let the indoor unit or the remote
controller get wet.
Water can cause electric shock, a fire or
other hazards.
Never use flammable spray such as hair
spray, insecticide, lacquer, or paint near
the unit.
Doing so may cause the unit to crack, or
may be a cause of electrical shock, a fire or
other hazards.
Never remove the fan guard of the unit.
Since the fan rotates at high speed during
operation, itmay cause injury.
Turn off all electrical power before doing
any maintenance.
Failure to do so could result in electrical
shock or injury. Make sure that the fan has
stopped before working on the unit.
Never spray or flush, with water or any
other fluids on to the unit.
May cause electrical shock inclulding death.
Do not touch the switch with wet hands.
Touching a switch with wet hands can
cause electric shock.
Do not allow children to play on or
around the unit.
Playing on or around the unit could cause
injury.
Heat exchanger fins are sharp enough to
cut. Wear gloves or cover the fins while
working around them.
Failure to do so could result in injury.
Check the unit foundation for damage on
a continuous basis, especially if it has
been in use for a long time.
If left in a damaged condition, the unit may
fall and cause injury.
Do not place anything containing water
or other fluids on top of the unit.
If spilled, may cause a fire or electrical
shock including death.
Do not touch the air outlet or horizontal
blades while the swing flap is in
operation.
Fingers may get caught and injured.
Do not open the controller cover or
touch the internal parts.
May cause electrical shock including death
or system malfunction. When internal part
adjustment or check out is required, please
contact your dealer.
Be sure to install a ground fault circuit
breaker.
Failure to do so may result in electric shock
or a fire.
Do not stand on, or place any object on
the outdoor unit.
It may be a cause of injury due to falling or
over-turning.

5
CAUTION
Do not touch the outdoor unit exhaust
pipe.
May cause severe burns.
Do not leave animals and plants in
places where wind from the air
conditioner flows directly.
This may cause adverse effects on the
animals or the plants.
Do not install the outdoor unit in a
location where exhaust gas or air from
its blower fan comes in contact with
plants or animals.
The exhaust gas or air from the blower fan
could cause harm to the animals or the
plants.
Keep spray canisters away at least 4 feet
from the air outlet.
Heat from indoor/outdoor unit air outlet may
cause the canisters to explode.
Do not use steam generating equipment
such as the water heater near the remote
controller or indoor unit.
Water droplets might fall during cooling
operation and cause short circuit.
When you need to work on the unit at a
high place, make sure to secure the
footing.
May cause injuries due to falling or over-
turning.
Never install the unit in the area where
flammable gas is generated, flows into,
accumulates or leaks.
If the gas leaks and builds up around the
unit, it may catch fire.
Do not assign the unit to the location
where installer or service technician can
not secure his/her footing.
May cause injuries due to falling or over-
turning.
Never use the same pipe for the outdoor
unit to drain both of exhaust gas con-
densate and condensed water.
Exhaust gas may backflow into the outdoor
unit and cause malfunction.
Be sure to use a designated power cir-
cuit.
Sharing the power supply with other
appliances may cause overheat, a fire or
malfunction.
Never pull or twist the electric wire of the
remote controller.
The wiring may be disconnected and cause
electric leakage, or cause the unit to
malfunction.
When installing the outdoor unit on the
rooftop, route the exhaust drain piping
so that exhaust gas condensate can be
discharged into the rainwater drainage
(roof drainage).
Routing the exhaust piping directly onto the
rooftop may damage the concrete structure
or waterproof sheet.
Do not place appliances that produce
open flames in places that are exposed
to the air flow of the unit or under the
indoor unit.
It may cause oxygen deficiency due to
incomplete combustion or deformation of
the unit due to the heat.
Do not use the system for any purpose
other than comfort cooling or heating.
Do not use the unit for cooling precision
instruments, food, plants, animals or
works of art.
This may cause adverse effects on the
object’s performance, quality and longevity.
Do not place any items you do not wish
to get wet below the indoor unit.
When the humidity level exceeds 80% or
due to a clogged condensation drain pipe,
water may drip from the indoor unit.
Before cleaning exterior, stop the
system operation by turning the
designated breaker switch off and by
shutting off the outdoor unit by
disconnecting the power cord from the
socket.
Failure to do so may cause electrical shock
inclulding death.
Do not wash the unit with excessive
water.
Doing so may result in electric shock or a
fire.

6
Do not place the controller near water
splashes.
Water entering the controller may cause
electric shock or damage the internal
electronic parts.
Do not shut off the power immediately
after turning the switch off.
The system requires at least 5 minutes to
complete the draining process after being
turned off.
Do not operate the system when using a
room-fumigation type of insecticide.
Failure to observe this could cause the
chemicals to be deposited in the unit and
can endanger health or create additional
hazards.
Never let children or anyone who
requires supervision operate the system
on their own.
Improper operation may cause health
problems or other hazards.
Do not let children play with the
controller.
Improper operation may cause health
problems or other hazards. Keep the
controller out of their reach.
Always consult with your dealer to clean
inside of unit.
Improper cleaning or use of incorrect
detergent may not only harm the unit, but
also could cause injuries, electrical shock,
water leakage, a fire, malfunction, or other
hazardous situation.
Do not touch the air intake or aluminum
fins.
Doing so may cause cuts or other injuries.
Do not place objects or let dead leaves
pile up around the unit.
Dead leave piles may attract small animals
as their nesting site. If those animals get
inside of outdoor unit, it may cause not only
system malfunction but also a fire or other
hazardous situation.
Be sure to arrange the drain piping to
ensure smooth drainage.
Improper drain piping may cause water
leakage and malfunction.
Location for installation
Make sure that the unit is installed in a
sufficiently ventilated area and not
surrounded by obstacles.
Especially using the unit in the following
places may create a risk of human injury or
damage to property. Do not install the unit in
such locations including without limitation the
following:
-a. Places with a mist of mineral oil, such as
cutting oil.
-b. Locations such as coastal areas where there
is a lot of salt in the air.
-c. Locations such as hot springs where there is
a lot of sulfur in the air.
-d. Locations such as factories where their
power voltage requirement varies
-e. In cars, boats, and other vehicles.
-f. Locations such as kitchens where oil may
splatter or where there is steam in the air.
-g. Locations where equipment produces
electromagnetic waves.
-h. Places with an acid or an alkaline mist.
-i. Places where fallen leaves can accumulate or
where weeds can grow.
Do not expose the controller to direct
sunlight.
The LCD display can become discolored and may
fail to display the data.
If there is any possibility of the exhaust gas
flowing into the room or causing adverse
effects on the surrounding area, consider the
use of an exhaust vent extension kit
(additional option).
Contact your dealer for more details.
If the unit is installed in a region with heavy
snowfall, take snow protection measures.
Contact your dealer for the details of snow
protection measures, such as the use of a snow
protection hood (additional option).
During the unit operation
Do not block the air inlet, exhaust vent or
exhaust drain outlet of the outdoor unit.
Doing so may cause malfunction.
Do not use any other room heater near the
indoor unit.
Heat may deform the suction grille of the indoor
unit.

7
Do not block the air inlet or air outlet of the
unit.
Doing so may lower the performance of the air
conditioner or cause malfunction.
If any oil or coolant leaks from the outdoor
unit, it may cause malfunction or secondary
damage to household property. In such cases,
contact your dealer.
Do not repeat turning ON and OFF the system
within a short period of time.
If the unit is turned off and turned back on in a few
minutes, 4 or 5 times or more per hour, it may
cause compressor malfunction, or otherwise
damage the unit.
Never press the button of the remote
controller with a hard, pointed object.
The remote controller may be damaged.
Do not wipe the controller operation panel
with benzene, thinner, chemical dust cloth,
etc.
The panel may get discolored or the coating can
peel off. If it is dirty, soak a cloth in water-diluted
neutral detergent, squeeze it well and wipe the
panel clean. Then wipe it with another dry cloth.
Electric wiring work
Do not attempt to do electrical work or
grounding work unless you are licensed to do
so.
Consult with your dealer for electrical work and
grounding work.
Make sure that a designated power circuit is
used.
Operation sound
Pay attention to operation sound. Be sure to
operate the system in the following places;
-a. Places that can sufficiently withstand the
weight of the unit yet can suppress the
operating sound and vibration of the unit.
-b. Places where warm air from the air outlet of
the outdoor unit or the operating sound of the
outdoor unit does not annoy neighbors.
Make sure that there are no obstacles close to
the outdoor unit.
Obstacles close to the outdoor unit may drop the
performance of the outdoor unit or increase the
operation sound of the outdoor unit.
Consult your dealer if the system in operation
generates unusual noise.
Drain piping work
Make sure that the drainpipe is installed
properly to drain water.
If no water is discharged from the drainpipe while
the system is in the cooling mode, the drainpipe
may be clogged with dust or dirt and water
leakage from the indoor unit may occur. Stop
operating the system and contact your dealer.
Important reminder
If the system is operated exceeding the
specified allowable temperature range,
especially when the ambient temperature is
high, the unit may be damagedor the
protection circuit may be activated to stop
operation.
To ensure the longevity of the unit
performance, or to protect the unit, the
operation of indoor and outdoor units may be
suspended, or the heating or cooling capacity
may drop temporarily. However, it
automatically returns to the original condition
(defrost operation). In such condition, gas and
electricity consumption may be increased.
Dismantling of the unit, disposal of the
refrigerant, oil, and additional parts, should be
done by the qualified technician in
accordance with the relevant local, state, and
national regulations.

8
2. WHAT TO DO BEFORE OPERA-
TION
This operation manual is for the following systems
with standard control. Before initiating operation,
contact your dealer for the operation that corre-
sponds to your system type and mark.
If your installation has a customized control system,
ask your dealer for the operation that corresponds to
your system.
The system provides 3 operation modes;
•
Names and functions of parts
System
1. Outdoor unit
2. Indoor unit
3. Remote controller
4. Inlet air
5. Outlet air
6. COOL/HEAT selector
(Above figure shows systems with changeover
remote control switches)
Outdoor unit
7. Air outlet (Fan)
8. Engine exhaust vent
9. Air inlet (Heat exchanger)
10. Power supply, transmission wiring port
11. Refrigerant pipe connecting port
12. Condensed water drain
13. Fuel pipe connecting port
14. Exhaust water drain
15. Engine intake vent
CAUTION/WARNING label A
CAUTION/WARNING label B
Remote Controller
Installation site
COOL/HEAT selector Operation modes
Gas heat pump air con-
ditioner
o yes o no
1
3
2
4
5
6
4
5
4
WARNING
Fan in movement
Do not insert fingers, sticks, or etc.
CAUTION
Hot surface may result in burn injury.
Do not touch the exhaust gas outlet.
WARNING
Recovery and destructive law of Freon First class specialized specific products
This product uses HFC as a refrigerant.
1) Indiscriminate hydrofluorocarbon (HFC) emission into the atmosphere is prohibited.
2) HFC recovery is required before disposing this product (comply with current norm)
3) The type and quantity of the HFC are indicated on the “Precautions for
installation and inspection” label inside the control box panel.
WARNING
CAUTION
CAUTION
1) Risk of exhaust gas pollution accumulated indoors.
-Drain hose of indoor and outdoor units should not be connected to the same drainage pipe.
-Discharge the exhaust drain in the open space outdoors.
2) Possibility of gas poisoning due to engine’s exhaust gas.
-Convey the engine’s exhaust gas directly to open outdoor spaces.
3) Danger of gas leakage
-Use only specific and qualified pipes and flexible hoses for fuel gas.
4) Danger of oxygen deficiency indoors or unit malfunction due to possible refrigerant leakage.
-After installation, perform pressure test to the piping network, to detect for any
refrigerant gas leakage.
5) If you smell gas: Do the following precautions.
-Like shut off gas valve, Remove power, Call appropriate service personnel.
Risk of electric shock. can cause injury or death.
Disconnect all remote electric power supplies before servicing.
Drainage could possibly taint the concrete surface or damage the water proof sheet of
the roof or floor
-Extend the drainage to the gutter or drain of the roof
Use copper supply conductors only.
1
11
17
19
16
20
5
231368 10
14
9
4
7
15 18
Fig . 1 ABRC1D71
12
8
9
11
10
7
A
A
A
B
12
13
14
15
8
9
11
10
7
A
A
A
B
12
13
14
15
• AXGP096E1NHS • AWGP180E1NHS
On/Off
Mode
Fan
Speed
Cancel
Menu
OK

9
Operation
1
Setting
Main Menu
Configuration
Current Settings
Clock & Calendar
Daylight Saving Time
Language
2/2
Display the main menu screen. by pressing ●
Menu button.
Press●buttons to select
Language on the main menu screen
and press the Menu/OK button.
2
Setting
Language
English
Press●buttons to select the preferred
language on the language screen.
English/Français/Español are available.
Press Menu/OK button to confirm the●
settings and return to the basic screen.
User’s Selectable Languages

10
Cool/heat selector
1
2
1
FAN ONLY/AIR CONDITIONING SELECTOR
SWITCH
Set the switch to “ ” for fan only operation or to
“ ” for heating or cooling operation.
2
COOL/HEAT CHANGEOVER SWITCH
Set the switch to “ ” for cooling or to “ ” for
heating operation.
Operation mode selector button1.
Press this button to select the operation●
mode of your preference. (See page 15.)
Available modes vary with the indoor unit model. *
Fan speed control button2.
Press this button to select the fan speed of●
your choice. (See page 16.)
Available fan speeds vary with the indoor unit model. *
Menu/OK button3.
Used to indicate the main menu.●
Used to enter the selected item.●
Up button4.
Used to raise the setpoint.●
The item above the current selection will be highlighted. ●
(The highlighted items will be scrolled continuously
when the button is continuously pressed.)
Used to change the selected item.●
Down button5.
Used to lower the setpoint.●
The item below the current selection will be highlighted. ●
(The highlighted items will be scrolled continuously
when the button is continuously pressed.)
Used to change the selected item.●
Right button6.
Used to highlight the next items on the right-hand side. ●
Each screen is scrolled in the right-hand direction. ●
Left button7.
Used to highlight the next items on the left-hand side. ●
Each screen is scrolled in the left-hand direction. ●
On/Off button8.
Press this button and system will start.●
Press this button again to stop the system.●
Operation status lamp (Green)9.
This lamp illuminates solid during normal operation. ●
This lamp blinks if an error occurs.●
Cancel button10.
Used to return to the previous screen.●
LCD (with backlight)11.
The backlight will be illuminated for ●
approximately 30 seconds by pressing any button.
If two remote controllers are used to control
a single indoor unit, only the controller to be
accessed first will have backlight functionality.
●
Button Locations and Descriptions
On/Off
Mode
Fan
Speed
Cancel
Menu
OK
2.
3.
8.
10.
9.
11.
4.
5.
6.
7.
1.

11
Liquid Crystal Display
Two types of liquid crystal display (LCD) are available. The standard display is set by default. ●
Detailed display can be selected in the main menu. ●
The displayed contents of the screen vary with the operation mode of the indoor unit model. (The ●
following display will appear when the indoor unit is in automatic operation.)
Standard display
Set to
Cool
Heat
74F
70F
Auto
This function is not available
<Standard display example>
6.Ventilation
2.Fan Speed
1.Operation mode
11.Setback
7.( ) display
3.Setpoint display
4.
Stand by for Defrost/
Hot start
5.Message
10.Changeover controlled by
the master indoor unit
9.Under centralized
control
8.( ) display
AUTO
ERV AIR PURIFY
CENTRAL
CONTROL MASTER CONTROLLED
SETBACK
STANDBY
Detailed Display
The air flow direction, clock, and detailed selection items appear on the detailed
display screen in addition to the items appearing on the standard display.
Cool
Heat 74
F
70 F
Room
Fri
11:03A
Set to
74
F
Auto
Return Setting
14.Detailed selection
12.
Air Flow Direction
(Displayed only when
the air conditioner is in
operation.)
13.Current Day/time
(12/24 hour time
display)
<Detailed display example 1>
AUTO
ERV AIR PURIFY
CENTRAL
CONTROL MASTER CONTROLLED
SETBACK
STANDBY
Auto
Return Setting
<Detailed display example 2>
No Air Flow
Direction display
(with no air flow direction
settings)
No Fan speed display
(with no fan speed
control function)
No Detailed item display
(with no detailed items
selected)
No Clock display
(when the clock has
not been set)
15. ( ) display
--
:
--
CENTRAL
CONTROL MASTER CONTROLLED
SETBACK
AUTO
ERV AIR PURIFY
STANDBY
Names and Functions

12
Operation mode1.
Used to display the current operation●
mode: Cool, Heat, Vent, Fan, Dry or Auto.
Fan Speed2.
Used to display the fan speed that is set for●
the indoor unit.
The fan speed will not be displayed if the●
connected model does not have fan speed
control functionality.
Setpoint display3.
Used to display the setpoint for the indoor●
unit.
Use the Celsius/Fahrenheit item in the●
main menu to select the temperature unit
(Celsius or Fahrenheit).
Stand by for Defrost/Hot start4.
“
STANDBY
” (See page 17.)
If ventilation icon is displayed in this field:
Indicates that an energy recovery ventilator●
is connected.
For details, refer to the Operation Manual
of the ERV.
Message5.
The following messages may be
displayed.
“This function is not available”
Displayed for a few seconds when an●
operation button is pressed and the indoor
unit does not provide the corresponding
function.
In a remote control group, the message will●
not appear if at least one of the indoor units
provides the corresponding function.
“Error: Push Menu button”
“Warning: Push Menu button”
Displayed if an error or warning is detected●
(see page 37).
“Time to clean filter”
“Time to clean element”
“Time to clean filter & element”
Displayed as a reminder when it is time to●
clean the filter or element.
Ventilation6.
Displayed when a energy recovery●
ventilator is connected.
Ventilation Mode icon.“●AUTO
ERV
ERV BYPASS
”
These icons indicate the current ventilation
mode (ERV only) (AUTO, ERV, BYPASS).
Air Purify ICON “●AIR
PURIFY
”
This icon indicates that the air purifying unit
is (option) in operation.
7. display
Displayed when the key lock is set.●
8. display (See page 26.)
Displayed if the Schedule or Off timer is●
enabled.
Under Centralized control “9.
CENTRAL
CONTROL
”
Displayed if the system is under the●
management of a multi zone controller
(option) and the operation of the system
through the remote controller is limited.
Changeover controlled by the10.
master indoor unit “
MASTER
CONTROLLED
”
(VRV only)
Displayed when another indoor unit on the●
system has the authority to change the
operation mode between cool and heat.
Names and Functions

13
Setback “11.
SETBACK
”
The setback icon flashes when the unit is●
turned on under the setback control.
Air Flow Direction “12. ”
Displayed when the air flow direction and●
swing are set (see page 20).
If the connected indoor unit model does not●
include oscillating louvers this item is not
displayed.
Current Day/Time (12/24 hour13.
time display)
Displayed if the clock is set.●
If the clock is not set, “ -- : -- ” is displayed.●
12 hour time format is displayed by default.●
Select 12/24 hour time display option in the●
main menu under “Clock & Calendar”.
Detailed selection14.
Displayed if the detailed display item is●
selected.
Detailed items are not selected by default.●
15. display
Displayed when the clock needs to be set.●
The schedule function will not work unless●
the clock is set.

14
3. OPERATION RANGE
Use the system in the following temperature and
humidity ranges for safe and effective operations.
*To avoid condensation and water dripping out the unit.
If the temperature or the humidity is beyond these
conditions, safety devices will work and the system
will not operate.
4. OPERATION PROCEDURE
•Operation procedure varies according to the com-
bination of the outdoor unit and the remote controller.
Read the chapter "2. WHAT TO DO BEFORE
OPERATION" on page 8.
•To protect the unit, turn on the main power switch
6 hours before operation.
For smooth start of the operation, do not turn off
the main power switch during the air conditioning
season.
•If the main power supply is turned off during oper-
ation, operation will restart automatically after the
power turns back on again.
COOLING HEATING
outdoor temperature 23°~130°FDB 14°~77°FWB
indoor temperature 57°~75°FWB 50°~82°FDB
indoor humidity80%*

15
4-1 COOLING/HEATING AND FAN ONLY OPERATION
Basic Operation
Cool/Heat/Auto/Fan Operation (SkyAir and VRV)
Operation
1
2
●Display the main menu screen by
pressing
●Before setting the schedule , the
clock must be set.
●The date & time screen will appear.
●Set the current year, month, day, and
time.
●
If the clock has not been set, a screen
like the one on the left will appear.
Press buttons to select Yes and
press Menu/OK button.
●Press buttons to select
Schedule the main menu screen.
Press Menu/OK button to display
the timer screen.
Setting
Clock has not been set.
Would you like to set it now?
Schedule
Yes No
Setting
Date & Time
Year 2008
Month 01
Day 01
Tuesday
12:00 A
Operation screen
display
Describes screens that
will be displayed on the
remote controller in
operation.
Operation procedure
Explains the sequence of
operation for the remote controller.
Operate the buttons according to
the procedure.
Operation status button
display
Displays the location of
buttons to be operated.
How to follow the operation manual
Setting
Main Menu
Air Flow Direction
Ventilation
Schedule
Off Timer
Celsius / Fahrenheit
Maintenance Information
1/2
Preparation
For mechanical protection purposes, apply power to the outdoor units at least six hours●
before starting the operation of the system.
Operation
1 Cool
Set to
Cool
74F
Press the Operation mode selector●
button several times until the desired
mode, Cool, Heat, Fan, or Auto mode is
selected.
Unavailable operation modes are not displayed.*
Note
Before changing the mode, confirm that the display does not●
indicate the master controlled status. Both heat and cool mode
may not be selected if the unit is master controlled. See page 23
if MASTER CONTROLLED icon blinks.
Menu button.

2
On/Off
n
u
K
Press On/Off button.●
The Operation status lamp (green) will
illuminate and the system will start
operating.
3 Cool
Set to
Cool
74F
The setpoint will increase by●
1°F (or 1°C) when button is pressed
and decrease by 1°F (or 1°C) when
button is pressed.
Setpoint is not available in fan or dry mode.*
4 Cool
Set to
Cool
74F
Low Medium
High
To change the fan speed, press the Fan●
speed control button and select the
desired fan speed from Low, Medium or
High.
Only two fan speed adjustment levels, low and high may be*
available depending on the type of the indoor unit.
The system may be in an automatic fan speed control for equipment *
protection purposes.
The system may be in automatic fan speed control according to*
the room temperature. It is normal for the fan to intermittently stop
operating.
It is normal for a delay to occur when changing the fan speed.*
5 Adjust Air Flow Direction from the main menu●
(see page 20).
If the connected indoor unit does not include oscillating louvers,
this function is not available.
*
16
Basic Operation

6
On/Off
n
u
K
When the On/Off button is pressed●
again, the system will stop operating
and the operation status lamp will turn off.
When the system is stopped while in the heating*
mode, the fan will continue to operate for
approximately one minute to remove residual
heat from the indoor unit.
Note
To prevent water damage or system failure, do not immediately●
remove power from the indoor unit following system operation.
Wait at least five minutes for the condensate pump to finish
draining residual water from the indoor unit.
Characteristics of Heat Mode
The system automatically controls the following operating modes to
prevent the reduction of heating capacity and space comfort.
Defrost operation The system will automatically go into defrost operation to prevent frost●
accumulation at the outdoor unit and loss of heating capacity.
The indoor unit fan will stop, and “●
STANDBY
” (Defrost/Hot start) will be
displayed on the remote controller.
The system will return to normal operation usually within six to eight●
minutes (but not more than 10 minutes).
Hot start When the system goes into heat mode, the indoor unit fan will stop in●
The system will return to normal operation usually within 3 minutes.●
order to prevent a cold draft.
(In that case, “
STANDBY
” (Defrost/Hot start) will be displayed on the
remote controller.)
Dry Mode
Preparation
For equipment protection purposes, apply power to the outdoor units at least six hours before●
starting the operation of the system.
The dry mode may not be selected if the remote controller is master controlled and the●
system is not already in the cooling mode of operation. (see page 24 for details)
17
4-2 PROGRAM DRY OPERATION

18
Operation
1 Dry
Press the Mode button several times●
until the Dry mode is selected.
The dry mode may not be available depending on the type of*
indoor unit.
2
On/Off
n
u
K
Press On/Off button.●
The Operation status lamp (green) will
illuminate and the system will start
operating.
In Dry mode, the system maintains automatic temperature and*
fan speed control. Therefore, temperature setpoint or fan speed
settings are not available while the indoor unit is in the Dry
mode.
3 Adjust Air Flow Direction from the main menu●
(see page 20).
If the connected indoor unit does not include oscillating*
louvers, this function is not available.
4
On/Off
n
u
K
When the On/Off button is pressed●
again, the system will stop operating
and the operation lamp will turn off.
Note
To prevent water damage or system failure, do not immediately●
remove power from the indoor unit following system operation.
Wait at least five minutes for the condensate pump to finish
draining residual water from the indoor unit.
Basic Operation

Characteristic of Dry mode
The Dry mode dehumidifies the space at reduced cooling capacity to
prevent the room temperature from dropping to uncomfortable
levels.
19

Air Flow Direction
Configuring Air Flow Direction
Operation
1
Setting
Main Menu
Air Flow Direction
Ventilation
Schedule
Off Timer
Celsius / Fahrenleit
Maintenance Information
1/2 Display the main menu screen.●
by pressing
Press●buttons to select
AIR FLOW DIRECTION on the main
menu screen and press the Menu/
OK button.
(For models with no airflow direction
adjustment, AIR FLOW DIRECTION
will not be displayed on the main menu screen.)
2
Setting
Air Flow Direction
Swing
Air Flow Direction
(up/down)
Setting
Swing
Air Flow Direction
Air Flow Direction
(left/right)
The air flow direction screen will appear.●
Note
Air flow direction appears on the screen as below.●
1
2 3
4
0
Up/down direction
0
1
2
3
4
Left/right direction
0 : Position 0
1 : Position 1
2 : Position 2
3 : Position 3
4 : Position 4
20
Menu button.
4-3 ADJUSTING THE AIR FLOW DIRECTION
Menu Options