General ARHA30LB, ARHA30LBTU, AOHA30LBTL, ARHA36LB, ARHA36LBTU Installation Manual

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CAUTION

Install the drain hose in accordance with the instructions in this installation instruction sheet and keep the area warm enough to prevent condensation. Problems with the piping may lead to water leaks.

Slide the unit in the arrow direction and fasten it.

2. LEVELING

Base vertical direction leveling on the unit (right and left).

Base horizontal direction leveling on top of the unit.

Give a slight tilt to the side to which the drain hose is connected. The tilt should be in the range of 0 mm to 5 mm.

3. INSTALLING DRAIN HOSE

Install the drain hose according to the measurements given in the following ﬁ gure.

Drain pipe ø 38 mm (O.D.) The drain cap is attached at the factory setting.

32 mm

240 mm

WARNING

Fasten the unit securely with special nuts A and B.

MODEL

24000

BTU/h model

30000/36000/45000

BTU/h model

Diameter

Liquid 6.35 mm (1/4 in.) 9.52 mm (3/8 in.)

Gas 15.88 mm (5/8 in.) 15.88 mm (5/8 in.)

Name and Shape Q’ty Application

Hanger

For suspending the indoor unit from ceiling

Drain hose insulation

Insulates the drain hose and vinyl hose

Binder

(Small)

For remote controller and remote controller cord binding

(Large)1For ﬁ xing the drain

hose

Remote controller

For air conditioner operation

Remote controller cord (*1)

For connecting the remote controller

Tapping screw (ø4 × 16)

For installing the remote controller

(*1) Not supplied for ART series

STANDARD PARTS

The following installation parts are furnished. Use them as required.

INDOOR UNIT ACCESSORIES

OPTIONAL PARTS

When connecting the square duct and round duct, use the optional square ﬂ ange or round ﬂ ange and ﬂ exible duct.

Decide the mounting position with the customer as follows:

INDOOR UNIT

(1) Install the indoor unit on a place having a sufﬁ cient strength so that it withstand against

the weight of the indoor unit.

(2) The inlet and outlet ports should not be obstructed; the air should be able to blow all

over the room. (3) Leave the space required to service the air conditioner. (4) Install the unit where the drain pipe can be easily installed. (5) Providing as much space as possible between the indoor unit and the ceiling will make

work much easier. (6) If installing in a place where its humidity exceeds 80%, use heat insulation to prevent

condensation.

Maintenance hole dimension

It shall be possible to install and remove the control box. It shall be possible to install and remove the control box, fan

units and ﬁ lter.

INSTALLATION PROCEDURE

Install the air conditioner as follows:

NOTE: INSTALL THE DRAIN HOSE

• Install the drain hose with downward gradient (1/50 to 1/100) and so there are no rises or traps in the hose.

• Use general hard polyvinyl chloride pipe (VP25) [outside diameter 38 mm] and connect it with adhesive (polyvinyl chloride) so that there is no leakage.

• When the hose is long, install supporters.

• Do not perform air bleeding.

• Always heat insulate the indoor side of the drain hose.

• Cut the drain hose insulation at a position approximately 80 mm from the end with cutters, etc.

• Stick the large drain hose insulation at the drain hose installation side.

• Stick the small drain hose insulation at the drain cap side.

(Left side)

(Right side)

INDOOR UNIT INSTALLATION

ELECTRICAL REQUIREMENT

• Use conformed cord with Type 245 IEC57

• Install the disconnect device with a contact gap of at least 3 mm nearby the units. (Both indoor unit and outdoor unit)

• Install all electrical works in accordance to the standard.

CONNECTING PIPE REQUIREMENT

• Use pipe with water-resistant heat insulation.

Flexible duct

Model name : UTD–RD202 (P/N 9074165004)

Round ﬂ ange

Model name : UTD–RF204 (P/N 9093160004)

Long-life ﬁ lter

Model name : UTD–LF25NA (P/N9079892004)

Square ﬂ ange

Model name : UTD–SF045T (P/N 9098180007)

4. INTAKE DUCT CONNECTION

Follow the procedure in the following ﬁ gure to the ducts.

The air inlet duct can be changed by replacing the intake grille and ﬂ ange.

For the bottom air intake, follow the procedure of → for installation. (The factory setting is back air intake.)

(1) Square duct

6. FRESH AIR INTAKE

(Processing before use)

(1) When taking in fresh air, cut a slit shaped cabinet in the left

side of the outer case with nippers.

Cut

Cabinet (iron plate) Square hole

5. OUTLET DUCT CONNECTION

Duct installation pattern ( CUT PART)

When using as a square duct

(1) Cut the slit seam with a cutter.

(2) Turn up the insulation around the points to be cut according

to the outlet port shape working points so that the insulation does not stick out at the

part.

(3) Cut with nippers and remove the sheet metal.

(4) Since there is a slit in the insulation, use radio pliers, tweezers,

etc. to stretch the screw hole part used when installing the round ﬂ ange and square ﬂ ange when connecting the duct.

(

2) Round duct outlet ×4

(This is the factory setting.)

Name and Shape Q’ty Application

Coupler heat

insulation (large)

For indoor side pipe joint (gas)

Coupler heat insulation (small)

For indoor side pipe joint (liquid)

Special nut A (large ﬂ ange)

For suspending the indoor unit from ceiling

Special nut B (small ﬂ ange)

WARNING

1 For the air conditioner to operate satisfactorily, install it as outlined in this installation instruction sheet. 2 Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts.

This installation instruction sheet describes the correct connections using the installation set available from our standard parts.

3 Installation work must be performed in accordance with national wiring standards by authorized personnel

only.

4 If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with

a ﬂ ame, it produces a toxic gas.

5 Do not use an extension cord. 6 Do not turn on the power until all installation work is complete.

• Be careful not to scratch the air conditioner when handling it.

• After installation, explain correct operation to the customer, using the operating manual.

• Let the customer keep this installation instruction sheet because it is used when the air conditioner is serviced

or moved.

SELECTING THE MOUNTING POSITION

CAUTION

This installation instruction sheet describes how to install the indoor unit only. To install the outdoor unit, refer to the installation instruction sheet included with the outdoor unit.

WARNING

Install at a place that can withstand the weight of the indoor and outdoor units and install positively so that the units will not topple or fall.

CAUTION

1 Do not install where there is the danger of combustible gas leakage. 2 Do not install the unit near heat source of heat, steam, or ﬂ ammable gas. 3 If children under 10 years old may approach the unit, take preventive measures so that they cannot reach

the unit.

4 Take precautions to prevent the unit from falling.

CAUTION

Install heat insulation around both the gas and liquid pipes. Failure to do so may cause water leaks. Use heat insulation with heat resistance above 120 °C. (Reverse cycle model only) In addition, if the humidity level at the installation location of the refrigerant piping is expected to exceed 70%, install heat insulation around the refrigerant piping. If the expected humidity level is 70-80%, use heat insulation that is 15 mm or thicker and if the expected humidity exceeds 80%, use heat insulation that is 20 mm or thicker. If heat insulation is used that is not as thick as speciﬁ ed, condensation may form on the surface of the insula- tion. In addition, use heat insulation with heat conductivity of 0.045 W/(m·K) or less (at 20 °C).

1. INSTALLING THE HANGERS

WARNING

Install the air conditioner in a location which can withstand a load of at least ﬁ ve times the weight of the main unit and which will not amplify sound or vibration. If the installation location is not strong enough, the indoor unit may fall and cause injuries.

CAUTION

For installation, refer to the technical data.

Hanging bolt installation diagram.

(Example)

(Top side)

(Left side)

The distance of

is adjustable according to the place of the hanging bolts. (MAX : 550 mm, MIN : 410 mm)

WARNING

When fastening the hangers, make the bolt positions uniform.

Bolt Strength 9.81 to 14.71 N·m (100 to 150 kgf·cm)

CAUTION

Always check that the drain cap is installed to the unused drain port and is fastened with the nylon fastener. If the drain cap is not installed, or is not sufﬁ ciently fastened by the nylon fastener, water may drip during the cooling operation.

• When the unit is shipped from the factory, the drain port is on the left side (control box side).

• When using the drain port on the right side of the unit, reinstall the drain cap to the left side drain port.

CAUTION

When air is taken in from the bottom side, the operating sound of the product will easily enter the room. Install the product and intake grilles where the affect of the operating sound is small.

CAUTION

1 If an intake duct is installed, take care not to

damage the temperature sensor.

2 Be sure to install the air inlet grille and the air

outlet grille for air circulation. The correct temperature cannot be detected.

3 Grills must be ﬁ xed so that man cannot touch

indoor unit fan, and cannot be removed by only hand operation without tool.

4 Be sure to install the air ﬁ lter in the air inlet. If the

air ﬁ lter is not installed, the heat exchanger may be clogged and its performance may decrease.

CAUTION

1 When removing the cabinet (iron plate), be care-

ful not to damage the indoor unit internal parts and surrounding area (outer case).

2 When processing the cabinet (iron plate), be

careful not to injure yourself with burrs, etc.

(2) Install the round ﬂ ange (option parts) to the fresh air intake.

Round duct

(3) Connect the duct to the round ﬂ ange.

(4) Seal with a band and vinyl tape, etc. so that air does not leak

from the connection.

CAUTION

Refer to the installation instruction sheet of the outdoor unit for description of the length of connecting pipe or for difference of its elevation.

Connection cord (mm2)

MAX. MIN.

2.5 1.5

SPLIT TYPE AIR CONDITIONER

INSTALLATION

INSTRUCTION SHEET

(PART NO. 9374318285)

CAUTION

R410A

REFRIGERANT

Duct Type

This Air Conditioner contains and operates with refrigerant R410A and Polyol Ester oil.

THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL.

Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance and /or service of this product.

Copper pipes

It is necessary to use seamless copper pipes and it is desirable that the amount of residual oil is less than 40 mg/10m. Do not use copper pipes having a collapsed, deformed or discolored portion (especially on the interior surface). Otherwise, the expansion valve or capillary tube may become blocked with contaminants. As an air conditioner using R410A incurs pressure higher than when using conventional refrigerant, it is necessary to choose adequate materials. Thicknesses of copper pipes used with R410A are as shown in the table. Never use copper pipes thinner than that in the table even when it is available on the market.

Thicknesses of Annealed Copper Pipes (R410A)

This air conditioner uses new refrigerant HFC (R410A).

The basic installation work procedures are the same as conventional refrigerant models. However, pay careful attention to the following points:

1 Since the working pressure is 1.6 times higher than that of conventional refrigerant models, some of the

piping and installation and service tools are special. (See the table below.)

Especially, when replacing a conventional refrigerant model with a new refrigerant R410A model, always

replace the conventional piping and ﬂ are nuts with the R410A piping and ﬂ are nuts.

2 Models that use refrigerant R410A have a different charging port thread diameter to prevent erroneous

charging with conventional refrigerant and for safety. Therefore, check beforehand. [The charging port thread diameter for R410A is 1/2 UNF 20 threads per inch.]

3 Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant models.

Also, when storing the piping, securely seal the openings by pinching, taping, etc.

4 When charging the refrigerant, take into account the slight change in the composition of the gas and liquid

phases, and always charge from the liquid phase side whose composition is stable.

Tool name Contents of change

Gauge manifold

Pressure is high and cannot be measured with a conventional gauge. To prevent erroneous mixing of other refrigerants, the diameter of each port has been changed. It is recommended the gauge with seals –0.1 to 5.3 MPa (–76 cmHg to 53 kgf/cm

) for high pressure.

–0.1 to 3.8 MPa (–76 cmHg to 38 kgf/cm2) for low pressure.

Charge hose To increase pressure resistance, the hose material and base size were changed.

Vacuum pump A conventional vacuum pump can be used by installing a vacuum pump adapter.

Gas leakage detector Special gas leakage detector for HFC refrigerant R410A.

Special tools for R410A

For authorized service personnel only.

DANGER

This mark indicates procedures which, if improperly performed, are most likely to result in the death of or serious injury to the user or service personnel.

WARNING

This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of the user.

CAUTION

This mark indicates procedures which, if improperly performed, might possibly result in personal harm to the user, or damage to property.

Indoor unit is an appliance not accessible to the general public.

Pipe outside diameter Thickness

6.35 mm (1/4 in.) 0.80 mm

9.52 mm (3/8 in) 0.80 mm

12.70 mm (1/2 in.) 0.80 mm

15.88 mm (5/8 in) 1.00 mm

19.05 mm (3/4 in.) 1.20 mm

DANGER

Never touch electrical components immediately after the power supply has been turned off. Electrical shock may occur. After turning off the power, always wait 5 minutes or more before touching electrical components.

• Cover the drain cap with the drain hose insulation.

Remote sensor

Model name : UTD–RS100 (P/N 9072619004)

External control set

Model name : UTD–ECS5A (P/N 9077359004)

300 mm

500 mm

Maintenance hole

Control box

100 mm

300 mm

500 mm

Control box

300 mm or more

Maintenance hole

1550 mm

150 mm or more

Intake panel

100 mm

AIR

740 mm

477 mm

AIR

270 mm

1135

1177

Hanging bolt M10 (Obtained locally)

Special nut A

Washer (Obtained locally)

Special nut B

Hanger

Level meter

AIR

0-5 mm

Liquid pipe

Drain pipe ø 38 mm (O.D.)

240 mm

Gas pipe

AIR

Drain hose

32 mm

Outlet air flow

Drain hose

Good Bad

Arrange the drain hose lower than this portion.

Bad

1.5 to 2 m

66 mm

114 mm

Drain port

Drain cap Nylon fastener

Rise

Air bleeding

Trap

Supporter

170 mm

Drain hose insulation (large)

Drain hose

Drain hose insulation (small)

unit

Unit

450 mm

Cut line

80 mm

Drain cap

370 mm

170 mm

Drain hose insulation (large)

unit

0 mm

Unit

0 mm

80 mm

170 mm

Drain hose

Drain hose insulation (small)

40 mm

ø225 mm

Unit

Air Outlet Grille Air Inlet Grille

(Room)

204 mm

9374318285_B2.indd 19374318285_B2.indd 1 11/21/07 4:01:26 PM11/21/07 4:01:26 PM

1065 mm

ø200 mm L 2 m

ø195 mm

ø205 mm

85 mm

239 mm

507 mm

ø235 mm

Duct

PART NO. 9374318285

CAUTION

Use care not to mistake the power supply cord and connection wires when installing.

3. CONNECTION PIPES

Indoor unit

(1) Detach the caps and plugs from the pipes.

CAUTION

1 To prevent breaking of the pipe, avoid sharp

bends.

Bend the pipe with a radius of curvature of 150

mm or over.

2 If the pipe is bent repeatedly at the same place,

it will break.

CAUTION

1 Do not use mineral oil on ﬂ ared part. Prevent

mineral oil from getting into the system as this would reduce the lifetime of the units.

2 While welding the pipes, be sure to blow dry

nitrogen gas through them.

3 The maximum lengths of this product are shown

in the table. If the units are further apart than this, correct operation cannot be guaranteed.

CONNECTING THE PIPE

Flare nut tightening torque

1. CONNECTION DIAGRAMS

Connection cord (to outdoor unit)

2. BENDING PIPES

The pipes are shaped by your hands. Be careful not to collapse them.

Do not bend the pipes in an angle more than 90°. When pipes are repeatedly bent or stretched, the material will harden, making it difﬁ cult to bend or stretch them any more. Do not bend or stretch the pipes more than three times.

(1) Remove the control box cover and install each connection

wire.

ELECTRICAL WIRING

Body

Be sure to overlap the insulation

Coupler heat insulation

No gap

Coupler heat insulation

4. HEAT INSULATION ON THE PIPE JOINTS (INDOOR SIDE ONLY)

After checking for gas leaks, insulate by wrapping insulation around the two parts (gas and liquid) of the indoor unit coupling, using the coupler heat insulation. After installing the coupler heat insulation, wrap both ends with vinyl tape so that there is no gap.

3. INDOOR UNIT SIDE

2. CONNECTION CORD PREPARATION

Keep the earth wire longer than the other wires.

Power supply cord or connection cord

20 mm

50 mm or mo

Earth wire

TEST RUNNING

STATIC PRESSURE CHARACTERISTIC

1. FLARING

(1) Cut the connection pipe to the necessary length with a pipe

cutter.

(2) Hold the pipe downward so that cuttings will not enter the pipe

and remove the burrs.

(3) Insert the ﬂ are nut (always use the ﬂ are nut attached to the

indoor and outdoor units respectively) onto the pipe and perform the ﬂ are processing with a ﬂ are tool.

Use the special R410A ﬂ are tool, or the conventional ﬂ are

tool.

CAUTION

1 Be sure to apply the pipe against the port on the

indoor unit correctly. If the centering is improper, the ﬂ are nut cannot be tightened smoothly. If the ﬂ are nut is forced to turn, the threads will be damaged.

2 Do not remove the ﬂ are nut from the indoor unit

pipe until immediately before connecting the connection pipe.

(2) Centering the pipe against port on the indoor unit, turn the

ﬂ are nut with your hand.

When the ﬂ are nut is tightened properly by your hand, use a torque wrench to ﬁ nally tighten it.

CAUTION

Hold the torque wrench at its grip, keeping it in the right angle with the pipe, in order to tighten the ﬂ are nut correctly.

Flare nut Tightening torque

6.35 mm (1/4 in.) dia. 16 to 18 N·m (160 to 180 kgf·cm)

9.52 mm (3/8 in.) dia. 30 to 42 N·m (300 to 420 kgf·cm)

12.70 mm (1/2 in.) dia. 49 to 61 N·m (490 to 610 kgf·cm)

15.88 mm (5/8 in.) dia. 63 to 75 N·m (630 to 750 kgf·cm)

19.05 mm (3/4 in.) dia. 90 to 110 N·m (900 to 1,100 kgf·cm)

CAUTION

Be sure to connect the gas pipe after connecting the liquid pipe completely.

CAUTION

Must ﬁ t tightly against body without any gap.

WARNING

1 Before starting work, check that power is not

being supplied to the indoor unit and outdoor unit.

2 Match the terminal board numbers and con-

nection cord colors with those of the outdoor unit.

Erroneous wiring may cause burning of the

electric parts.

3 Connect the connection cords firmly to the

terminal board. Imperfect installation may cause a ﬁ re.

4 Always fasten the outside covering of the

connection cord with the cord clamp. (If the insulator is chafed, electric leakage may occur.)

5 Always connect the ground wire.

6 Install the remote controller wires so as not to

be direct touched with your hand.

(3) Install control box cover.

Pipe outside

diameter

Width across ﬂ ats

of Flare nut

6.35 mm (1/4 in.) 17 mm

9.52 mm (3/8 in.) 22 mm

12.70 mm (1/2 in.) 26 mm

15.88 mm (5/8 in.) 29 mm

19.05 mm (3/4 in.) 36 mm

Pipe outside diameter

Dimension A (mm)

Flare tool for R410A, clutch type

6.35 mm (1/4 in.)

0 to 0.5

9.52 mm (3/8 in.)

12.70 mm (1/2 in.)

15.88 mm (5/8 in.)

19.05 mm (3/4 in.)

When using conventional ﬂ are tools to ﬂ are R410A pipes, the dimension A should be approximately 0.5 mm more than indicated in the table (for ﬂ aring with R410A ﬂ are tools) to achieve the speciﬁ ed ﬂ aring. Use a thickness gauge to measure the dimension A.

Pipe outside diameter Dimension B (mm)

6.35 mm (1/4 in.) 9.1

9.52 mm (3/8 in.) 13.2

12.70 mm (1/2 in.) 16.6

15.88 mm (5/8 in.) 19.7

19.05 mm (3/4 in.) 24.0

-0.4

CAUTION

1 Tighten the indoor unit connection cord (to the

outdoor unit) and power supply indoor and outdoor unit terminal board connections ﬁ rmly with the terminal board screws. Faulty connection may cause a ﬁ re.

2 If the indoor unit connection cord (to the outdoor

unit) and power supply are wired incorrectly, the air conditioner may be damaged.

3 Wire the indoor unit connection cord (to the

outdoor unit) by matching the numbers of the outdoor and indoor units terminal board numbers as shown in terminal label.

4 Ground both the indoor and outdoor units by

attaching a ground wire.

5 Unit shall be grounded in compliance with the

applicable local and national codes.

RECOMMENDED RANGE OF

EXTERNAL STATIC PRESSURE

30Pa to 150Pa

CAUTION

If the applicable static pressure does not match the static pressure mode, the static pressure mode may be changed to another mode automatically.

CHECK ITEMS

(1) Is operation of each button on the remote control unit nor-

mal? (2) Does each lamp light normally? (3) Do not air ﬂ ow direction louvers operate normally? (4) Is the drain normal? (5) Is there any abnormal noise and vibration during operation?

ü Do not operate the air conditioner in the running state for a

long time.

[OPERATION METHOD]

ü For the operation method, refer to the operating manual.

(1) If the operation lamp is on, press the Start/Stop button to turn

it off. (2) Press the Master Control Button and Fan Control Button at

the same time for more than two seconds to start the test

operation. The operation lamp will light up and “

” will be displayed

on the set temperature display. * Perform the test operation for 60 minutes.

(3) Press the start/stop button to stop the test running.

[Troubleshooting at the remote control LCD]

This is possible only on the wired remote control.

[SELF-DIAGNOSIS]

If an error occurs, the following display will be shown. (“EE” will appear in the set room temperature display.)

Error code Error contents

01 13 26 27

Indoor signal error

Wired remote controller abnormal

Indoor room temperature sensor error

Indoor heat exchanger temperature sensor (middle) error

Indoor heat exchanger temperature sensor (inlet) error

Float switch operated

Outdoor discharge pipe temperature sensor error

Outdoor heat exchanger temperature sensor (outlet) error

Outdoor temperature sensor error

Compressor temperature sensor error

2-way valve temperature sensor error

3-way valve temperature sensor error

Outdoor heat exchanger temperature sensor (middle) error

Indoor manual auto switch abnormal

Power supply frequency detection error

IPM protection

CT error

Compressor location error

Outdoor fan error

Connected indoor unit abnormal

Outdoor unit computer communication error

Indoor fan abnormal

Discharge temperature error

Exessive high pressure protection on cooling

4-way valve abnormal

Pressure switch abnormal

Compressor temperature error

Active ﬁ lter abnormal

PFC circuit error

If “CO” appears in the unit number display, there is a remote controller error.

SPECIAL INSTALLATION METHODS

CAUTION

1 When setting DIP switches, do not touch any

other parts on the circuit board directly with your bare hands.

2 Be sure to turn off the main power.

1. GROUP CONTROL SYSTEM

ü A number of indoor units can be operated at the same time

using a single remote controller.

ü Depending on the model, some indoor units cannot be con-

nected for group control.

ü Some functions may become unusable, depending on the

combination of the indoor units that are connected in a group.

(1) Wiring method (indoor unit to remote controller)

(2) DIP switch setting (Indoor unit) Set the unit number of each indoor unit using DIP switch on the

indoor unit circuit board. (See following table and ﬁ gure.)

DIP switch is normally set to make unit number No. 0.

Indoor unit

Unit number DIP SWITCH No.

1234

0 OFF OFF OFF OFF 1 ON OFF OFF OFF 2 OFF ON OFF OFF 3 ON ON OFF OFF 4 OFF OFF ON OFF 5 ON OFF ON OFF 6 OFF ON ON OFF 7 ON ON ON OFF 8 OFF OFF OFF ON

9 ON OFF OFF ON 10 OFF ON OFF ON 11 ON ON OFF ON 12 OFF OFF ON ON 13 ON OFF ON ON 14 OFF ON ON ON 15 ON ON ON ON

Example : No. 3

CUSTOMER GUIDANCE

Explain the following to the customer in accordance with the operating manual:

(1) Starting and stopping method, operation switching, tempera-

ture adjustment, timer, air ﬂ ow switching, and other remote

control unit operations. (2) Air ﬁ lter removal and cleaning. (3) Give the operating and installation manuals to the customer.

FUNCTION SETTING

Setting Setting Value

Static pressure Cooler room temperature

correction Heater room temperature

correction Auto restart Indoor room temperature sensor

switching function

Setting the Static Pressure

Determine the wind volume in each mode i.e., applicable range of static pressure, refering to [7] STATIC PRESSURE

CHARACTERISTICS. (The unit is factory-set to “00”.)

Setting the Cooler Room Temperature Correction

ü Depending on the installed environment, the room temperature

sensor may require a correction. The settings may be selected as shown in the table below. (The unit is factory-set to “00”.)

Setting the Heater Room Temperature Correction

ü Depending on the installed environment, the room temperature

sensor may require a correction. The settings may be changed as shown in the table below. (The unit is factory-set to “00”.)

Setting Other Functions

ü The following settings are also possible, depending on the

operating conditions. (The unit is factory-set to “00”.)

Auto Restart

Indoor Room Temperature Sensor Switching Function (Wired remote controller only)

ü If setting value is “00”, room temperature is controlled by the

indoor unit temperature sensor.

ü If setting value is “01”, room temperature is controlled by either

indoor unit temperature sensor or remote control unit sensor.

Setting Record

ü Record any changes to the settings in the following table.