General ARG30A, ARG30ALC, ARG30R, ARG30RLC Installation Manual

SPLIT TYPE AIR CONDITIONER

Duct Type

INSTALLATION INSTRUCTION SHEET

(PART NO. 9361795037)

For authorized service personnel only.

WARNING!

CAUTION!

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 room air conditioner piping and cords available from our standard

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 flame, it produces a toxic gas.

5 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.

•

The maximum length of the piping is shown in Table 1. If the units are further apart than this, correct operation cannot be guaranteed.

STANDARD PARTS

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

INDOOR UNIT ACCESSORIES

Name and Shape Q’ty Application

Installation template

Hanger

Special nut A (large flange)

Special nut B (small flange)

Coupler heat insulation (large)

Coupler heat insulation (small)

Nylon fastener For fixing the drain hose

Remote controller

Remote controller cord clamp

Tapping screw (flush heads)

Auxiliary pipe assembly

Drain hose insulation

OUTDOOR UNIT ACCESSORIES

Hexagon wrench

Cable clip

Tapping screw (painted)

Drain pipe

Drain cap

SELECTING THE MOUNTING POSITION

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.

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

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

WARNING

CAUTION

Do not install where there is the danger of com-

bustible gas leakage.

Do not install the unit near heat source of heat, steam, or flammable gas.

If children under 10 years old may approach the unit,

For positioning the indoor unit

For suspending the indoor unit from ceiling

For indoor side pipe joint (large pipe)

For indoor side pipe joint (small pipe)

take preventive measures so that they cannot reach the unit.

Decide the mounting position together with the customer as follows:

INDOOR UNIT

(1)

Install the indoor unit on a place having a sufficient strength so that it withstands against the weight of the indoor unit.

(2)

The inlet and outlet parts 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 (Fig. 1).

Fig. 1

Left side

300 mm (12”) or more

Install the unit where the drain pipe can be easily installed.

(4)

Providing as much space as possible between the indoor unit and

(5)

the ceiling will make work much easier.

Strong and durable ceiling

Indoor unit

OUTDOOR UNIT

WARNING

Install the unit where it will not be tilted by more than 5°.

When installing the outdoor unit where it may

exposed to strong wind, fasten it securely.

If possible, do not install the unit where it will exposed to direct sun-

For installing the remote controller cord

For installing the remote controller cord clamp

For wiring conduit (gas side) connection

Insulates the drain hose and vinyl hose connection

For opening the refrigerant valve on the outdoor unit

For power supply cord binding

(1)

light. (If necessary, install a blind that does not interfere with the air flow.) Install the outdoor unit in a place where it will be free from being

(2)

dirty or getting wet by rain as much as possible. Install the unit when connection to the indoor unit is easy.

(3)

During heating operation, drain water flows from the outdoor

(4)

unit. Therefore, install the outdoor unit in a place where the drain water flow will not be obstructed. (Heat & Cool model (Reverse cycle) only) Do not place animals and plants in the path of the warm air.

(5)

Take the air conditioner weight into account and select a place

(6)

where noise and vibration are small. Select a place so that the warm air and noise from the air condi-

(7)

tioner do not disturb neighbors. Provide the space shown in Fig. 2 so that the air flow is not blocked.

(8)

Also for efficient operation, leave open three of the four directions front, rear, and both sides.

Fig. 2

300 mm (12”) or more

AIR

For fixing the valve cover

For outdoor unit drain piping work

[Heat & Cool (Reverse cycle) model only]

300 mm

(12”)

or more

600 mm (24”) or more

300 mm

(12”)

or more

WARNING

Right side

150 mm (6”) or more

CONNECTION PIPE REQUIREMENT

CAUTION

The maximum lengths of this product are shown in table 1. If the units are further apart than this, correct operation can not be guaranteed.

Table 1

Small

9.53 mm (3/8”)

Diameter

Maximum length

Large Cooling

15.88 mm (5/8”)

(99 ft)

30 m

Reverse

cycle

25 m

(82 ft)

Maximum height

(between indoor

and outdoor)

(50 ft)

• Use 0.7 mm to 1.2 mm thick pipe.

• Use pipe with water-resistant heat insulation.

• Use pipe that can withstand a pressure of 3,040 kPa.

ELECTRICAL REQUIREMENT

• Electric wire size and fuse/breaker capacity:

Table 2

MAX

Power supply cord (mm2)

Connection cord (mm

Fuse/Breaker capacity (A)

Install the disconnect device with a contact gap of at least 3 mm

•

nearby the units. (Both indoor unit and outdoor unit)

)

MIN

MAX

MIN

4.0

3.5

2.5

1.0

INSTALLATION PROCEDURE

Install the air conditioner as follows:

1. PIPING CONNECTION DIRECTION AND

•

Fig. 3

•

2. DRILLING HOLES FOR BOLTS AND

•

Fig. 4

3. INSTALLING THE HANGERS

Installation method (1)

•

Fig. 5

•

Fig. 6

(Example)

INDOOR UNIT INSTALLATION

WARNING

Install the air conditioner in a location which can with-

•

stand a load of at least five 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.

If the job is done with the panel frame only, there is a risk

•

that the unit will come loose. Please take care.

PREPARATION

Select piping directions.(Fig. 3)

When bending the piping is difficult, use the auxiliary pipe assembly.

INSTALLING THE BOLTS

Using the installation template, drill holes for bolts (four holes). (Fig. 4)

Installation template

Drilling position for bolts

Fasten the hanging bolts to the ceiling and install special nuts A and B.

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

Hanging bolt

Special nut A

Special nut B

Install the hangers to the unit.

WARNING

When fastening the hangers, make the bolt positions uniform.

15 m

• Hang the unit.

(1) Pass the hanging bolts through the hangers. (Four places)

Fig. 7

(2) Slide the unit in the arrow direction and fasten it.

Fig. 8

WARNING

Fasten the unit securely with special nuts A and B.

Installation method (2)

Install the bolts to the ceiling at a place strong enough to hang the

•

unit. Mark the bolt positions from the installation template.

With a concrete drill for

12.7 mm (1/2”) dia. holes. (Fig. 9)

Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer.

Anchor-Bolt Strength

Fig. 10

Install the hangers to the unit.

•

Fig. 11

When fastening the hangers, make the bolt positions uniform.

(Example)

Install the unit

•

Pass the unit hangers over the bolts installed to the ceiling and install the unit with the special nut B.

Fig. 12

4. LEVELING

Base horizontal direction leveling on top of the unit.

Fig. 13

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

Fig. 14

Fig. 9

12.7 mm (ø1/2”)

9.81 to 14.71 N·m(100 to 150 kgf·cm)

WARNING

60 to 70 mm

(2-3/8” to 2-3/4”)

5. SERVICE HOLE DIMENSIONS

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

Fig. 15

Reference B

200 mm

(8”)

500 mm (20”)

OUTDOOR UNIT INSTALLATION

Service hole

Control box metal

(2”)

50 mm

• Vertical dimension 500 mm from 50 mm below reference A

• Horizontal dimension 500 mm from 200 mm from the left from reference B

1. OUTDOOR UNIT PROCESSING

When the outdor unit will be exposed to strong wind, fasten it with bolts at the places indicated by the arrows. (Fig. 16)

Fig. 16

Bottom

Drain pipe mounting hole

Set the unit on a strong stand, such as one model of concrete blocks to

•

minimize shock and vibration. Do not set the unit directly on the ground because it will cause trouble.

•

Air frow

804 mm (31-21/32”)

Drain pipe

Drain cap

Bottom plate

333 mm

(13-7/64”)

19 mm (3/4”)

CAUTION

If this product is used in an area where the temperature falls below freezing for long periods of time, do not connect the drain pipe. Instead, allow the water to drain into a drain pan.

2. OUTDOOR UNIT CONNECTION CORD AND PIPE CONNECTION PREPARATIONS

(1)

Remove outdoor unit valve cover.

Fig. 17

Connect the piping, connection cord and power supply cord.

(2)

Fig. 18

Power supply cord

Connection cord

CONNECTING THE PIPING

* After removing the screws, remove valve cover

Valve cover take off direction

Valve cover

Valve

Pipe

1. FLARE PROCESSING

Cut the connection pipe with pipe cutters so that the pipe is not

(1)

deformed. Holding the pipe downward so that cuttings cannot enter the pipe

(2)

and remove the burrs. Remove the flare nut from the indoor unit pipe and outdoor unit

(3)

and assemble as shown in (Table 3) and insert the flare nut onto the pipe, and flare with a flaring tool. Check if the flared part “L” (Fig. 19) is spread uniformly and that

(4)

there are no cracks.

Table 3

Flare nut

L dimension Small pipe (9.53 mm dia)

1.8 to 2.0 mm Large pipe (15.88 mm dia)

2.2 to 2.4 mm

Small pipe

Large pipe

Fig. 19

Pipe

Small (width across flats 22 mm)

Large (width across flats 27 mm)

2. BENDING PIPES

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

Fig. 20

Reference A

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

When bending the pipe, do not bend it as is. The pipe will be collapsed. In this case, cut the heat insulating pipe with a sharp cutter as shown in Fig. 21, and bend it after exposing the pipe. After bending the pipe as you want, be sure to put the heat insulating pipe back on the pipe, and secure it with tape.

Fig. 21

CAUTION

To prevent breaking of the pipe, avoid sharp bends.

Bend the pipe with a radius of curvature of 150 mm or over.

If the pipe is bent repeatedly at the same place, it will

break.

3. CONNECTION PIPES

(1)

Indoor unit side

Detach the caps and plugs from the pipes.

CAUTION

Be sure to apply the pipe against the port on the in-

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

Do not remove the flare nut from the indoor unit pipe

until immediately before connecting the connection pipe.

Centering the pipe against port on the indoor unit, turn the flare nut with your hand.

CAUTION

Hold the torque wrench at its grip, keeping it in the right angle with the pipe as shown in Fig. 23, in order to tighten the flare nut correctly.

When the flare nut is tightened properly by your hand, use a torque wrench to finally tighten it.

Fig. 22

Holding spanner

Pipe

Small pipe

Large pipe

Torque wrench

Table 4 : Flare nut tightening torque

30.4 to 34.3 N

73.5 to 78.4 N

Fig. 23

Unit side

Tightening torque

m (310 to 350 kgf·cm)

m (750 to 800 kgf·cm)

90°

CAUTION

Be sure to connect the large pipe after connecting the small pipe completely.

(2) Outdoor unit side

Tighten the flare nut of the connection pipe at the outdoor unit valve connector. The tightening method is the same as that as at the indoor side.

Fig. 24

(Small pipe)

Cnnection pipe

(Large pipe)

2-way valve

Flare nut

3-way valve

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

Stick coupler heat insulation (large and small) to the place where

•

connecting pipes. When using auxiliary piping with large pipe, stick coupler heat insu-

•

lation (large) to the pipe at the two places shown below.

Fig. 25

Reference A

Coupler heat insulation (large) on the pipe.

Front outlet

Coupler heat insulation (small) on the pipe

Small pipe

Cover this portion with heat insulating material also without fail.

Large pipe

Heat insulating pipe

CAUTION

No gap should remain.

VACUUM PROCESS

CAUTION

Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation! There is no extra refrigerant in the outdoor unit for air purging!

VACUUM

(1)

Remove the cap, and connect the gauge manifold and the vacuum pump to the charging valve by the service hoses.

(2)

Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 0.2 kPa (1.5 mmHg.)

(3)

Disconnect the service hoses and fit the cap to the charging valve (Tightening torque : 6.87 to 8.83 N

(4)

Remove the blank caps, and fully open the spindles of the 2-way and 3-way valves with a hexagon wrench (Torque : 2-way valve: 6.87 to

8.83 N

·m (70 to 90 kgf·cm), 3-way valve: 9.81 to 11.77 N·m (100 to

120 kgf

·cm)).

(5)

Tighten the blank caps of the 2-way valve and 3-way valve to the specified torque (19.62 to 24.53 N

Fig. 26

Outdoor unit

Service hose with valve core

Fig. 27

·m (70 to 90 kgf·cm).

·m (200 to 250 kgf·cm)).

Refrigerant pipe

3-way valve

Blank cap

Charging valve

Cap

Gauge manifold

Vacuum pump

Service hose

2. ADDITIONAL CHARGE

Refrigerant suitable for a piping length of 7.5 m is charged in the outdoor unit at the factory. When the piping is longer than 7.5 m, additional charging is necessary. For the additional amount, see the table below.

Table 5

Pipe length

Heat & Cool

Additional refrigerant

Between 7.5 m and 25 m or 30 m, when using a connection pipe other than that in the table, charge additional refrigerant with 50 g (1.8 oz)/1 m (3.3 ft) (Reverse cycle model), 20 g (0.7 oz)/1 m (3.3 ft) (Cooling model) as the criteria.

(Reverse cycle)

Cooling

model

7.5 m (25 ft)

None

10 m

(33 ft)

125 g

(4.4 oz)

50 g

(1.8 oz)

15 m

(49 ft)

375 g

(13.2oz)

150 g

(5.3 oz)

20 m

(66 ft)

625 g

(22.0 oz)

250 g

(8.9 oz)

25 m

(82 ft)

875 g

(30.9 oz)

350 g

(12.3 oz)

CAUTION

When moving and installing the air conditioner, do not

mix gas other than the specified refrigerant (R22) inside the refrigerant cycle.

When adding refrigerant, add the refrigerant from the

charging valve at the completion of work.

If the units are further apart than the maximum pipe

length, correct operation can not be guaranteed.

GAS LEAKAGE INSPECTION

CAUTION

After connecting the piping, check the joints for gas leakage with gas leak detector.

INSTALLING DRAIN HOSE

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.

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.

•

Fig. 28

Outlet air flow

Arrange the drain hose lower than this portion.

The outside diameter of the drain port is 38 mm. Use a suitable

•

drain hose. There is a drain port on both the left and right sides. Select the drain

•

port to match the local conditions.

Drain hose

Rise

Supporter

1.5 to 2 m (5 to 6.5 ft)

Air bleeding

30 m

(99 ft)

450 g

(15.9 oz)

Trap

- Continued on back -

Fig. 29

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.

Fig. 30

CAUTION

1. INDOOR UNIT SIDE

(1)

Remove the control box metal-B from the control box metal assy.

Fig. 34

(2) Connection cord and remote controller cord connections.

Clamp the connection cord with the cable clamp and the remote

•

controller cord with the nylon clamp. Connect the connection cord to the terminals with the white

•

characters on the terminal nameplate. Connect the remote controller cord to the terminals with the

•

black characters on the terminal nameplate.

Fig. 35

Remote controller Power supply

Black

White Red

(N)

3 2 1

Power line

Indoor unit side terminal

Fig. 38

Control line

EARTH

L N 3

(N)

EARTH

Outdoor unit side terminal

Cable clip

Fig. 42

Remote controller cord

Tapping screw (flush heads)

(2) When remote controller cord embedded

Embed the remote controller cord and box.

Pass the remote controller cord through the hole at the remote controller case bottom and install the cord to the box. (Fig. 43)

Connect the remote controller cord to the remote controller terminal board specified in (Fig. 41).

Fig. 43 [Example]

Remote controller case top

Remote controller cord clamp

Remote controller cord

When EE : EE blinks at the current time display, there is an error

•

inside the air conditioner. If the SET TIME button ( ) and TEMP./DAY button ( ) are pressed simultaneously for more than three seconds, the self diagnosis check will start and the error contents will be displayed at the current time display (Fig. 45). When the operation lamp lights, press the START/STOP button and after operation lamp goes off, perform the same operation (Fig. 45). Process the error contents by referring to (Table 6).

Fig. 45

CLOCK

NON STOP

TIMER MODE

CLOCK ADJUST

Stop Operation.

TEMP

SET TIME TEMP./DAY FAN

ZONE

SET

AUTO

°C

HIGH

COOL

DEFROST

CONTROL

MASTER

CONTROL

START/STOP

ENERGY SAVE ENERGY SAVE

DAY OFF

TIMER

SET TIME TEMP./DAY FAN

MODE

CLOCK ADJUST

CONTROL

SET

DAY OFF

AUTO

START/STOP

Table 6

Error code

Error contents

Communication error (indoor unit remote controller)

Communication error (indoor unit outdoor unit)

Room temperature sensor open

MASTER

CONTROL

OUTLET DUCT CONNECTION

1. DUCT INSTALLATION PATTERN (■CUT PART)

Fig. 47

(1) Square duct

(2) Round duct outlet × 4 (This is the factory setting.)

2. WHEN USING AS A SQUARE DUCT

Cut the slit seam with a cutter.

(1)

Fig. 48

1312

INTAKE PORT REAR COVER

DIMENSIONS

Fig. 52

1,078 mm (42-7/16”)

102 mm

10 mm

(13/32”)

10 mm

(13/32”)

348 mm

(13-11/16”)

1,063 mm (41-27/32”)

348 mm

(13-11/16”)

INTAKE PORT

The square flange (rear side) and panel (intake panel) are instal-

(1)

led at the factory at the places shown in Fig. 53. When taking in air from the bottom side, reinstall the square

(2)

flange (rear side) and panel (intake panel).

(4-1/32”)

204 mm

(8-1/32”)

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 sufficiently fastened by the nylon fastener, water may drip during the cooling operation.

Cut the drain hose insulation at a position approximately 30 mm

•

from the end with cutters, etc. (Fig. 31-(1)) Stick the large drain hose insulation at the drain hose installation

•

side. (Fig. 31-(2)) Stick the small drain hose insulation at the drain cap side (Fig. 31-(3))

•

Fig. 31-(1)

450 mm (17-23/32”)

170 mm

(6-11/16”)

Fig. 31-(2)

Drain hose insulation (large)

Unit

Drain hose

Cut line

30 mm (1-3/16”)

420 mm (16-17/32”)

170 mm

(6-11/16”)

Unit

Drain hose insulation (large)

0 mm (0”)

170 mm ( 6-11/16”)

Drain hose

30 mm (1-3/16”)

CAUTION

Tighten the indoor unit connection cord (to the outdoor unit) indoor and outdoor unit terminal board connections firmly with the terminal board screws. Faulty connection may cause a fire.

If the indoor unit connection cord (to the outdoor unit) are wired incorrectly, the air conditioner may be damaged.

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 (Fig. 35).

Ground both the indoor and outdoor units by attaching a ground wire.

(3)

Install the valve cover.

Fig. 39

Valve cover

Attach the four fasteners.

Reinstall the removed screws.

Accessory part

Remote controller case bottom

After wiring work is complete, return the remote controller case

•

top to its original state.

CAUTION

Do not bundle the remote controller cord, or wire

the remote controller cord in parallel, with the indoor unit connection wire (to the outdoor unit) and the power supply cord. It may cause erroneous operation.

When installing the remote controller and cord near

a source of electromagnetic waves, separate the remote controller from the source of the electromagnetic waves and use shielded cord.

Do not touch the remote controller PC board and PC

board parts directly with your hands.

Room temperature sensor shortcircuited

Indoor heat exchanger temperature sensor open

Indoor heat exchanger temperature sensor shortcircuited

Outdoor heat exchanger temperature sensor open

Outdoor heat exchanger temperature sensor shortcircuited

Power source connection error

Float switch operated

Outdoor temperature sensor open

Outdoor temperature sensor shortcircuited

Discharge pipe temperature sensor open

Discharge pipe temperature sensor shortcircuited

Outdoor high pressure abnormal

Discharge pipe temperature abnormal

Model abnormal

Indoor fan abnormal

Outdoor signal abnormal

Outdoor EEPROM abnormal

(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.

Fig. 49

Cut with nippers and remove the sheet metal.

(3)

Since there is a slit in the insulation, use radio pliers, tweezers, etc.

(4)

to stretch tight the screw hole part used when installing the round flange and square flange when connecting the duct.

Fig. 50

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.

Fig. 53

FRESH AIR IN TAKE

(Processing before use)

When taking in fresh air, cut a slit shaped cabinet in the left side

(1)

of the outer case as shown in Fig. 54 with nippers.

Fig. 31-(3)

Drain hose insulation (small)

0 mm (0”)

Unit

Drain hose insulation (small)

Unit

Drain cap

ELECTRICAL WIRING

HOW TO CONNECT WIRING TO THE TERMINALS A. For solid core wiring (or F-cable)

Cut the wire end with a wire cutter or wire-cutting pliers,

(1)

then strip the insulation to about 25 mm (15/16”) to expose the solid wire. Using a screwdriver, remove the terminal screw(s) on the

(2)

terminal board. Using pliers, bend the solid wire to form a loop suitable

(3)

for the terminal screw. Shape the loop wire properly, place it on the terminal

(4)

board and tighten securely with the terminal screw using a screwdriver.

B. For strand wiring

(1)

Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation to about 10 mm (3/8”) to expose the strand wiring.

(2)

Using a screwdriver, remove the terminal screw(s) on the terminal board.

(3)

Using a round terminal fastener or pliers, securely clamp a round terminal to each stripped wire end.

(4)

Position the round terminal wire, and replace and tighten the terminal screw with a screwdriver.

Fig. 32

A. Solid wire B. Strand wire

Loop

Insulation

Strip 25 mm (15/16”)

Wire

Screw with special washer

Round terminal

Wire

HOW TO FIXED CONNECTION CORD AND POWER SUPPLY CORD AT THE CORD CLAMP

After passing the connection cord and power supply cord through the insulation tube, fasten it with the cord clamp.

Fig.33

Use VW-1, 12 mm diameter, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.

Strip 10 mm (3/8”)

Screw with special washer

Round terminal

Unit shall be grounded in compliance with the applicable local and national codes.

(3)

Control box matel-B installation Fasten control box metal-B with the two screws. For the connection cord outlet port see Fig. 36.

Fig. 36

2. OUTDOOR UNIT SIDE

WARNING

Before starting work, check that power is not being

supplied to the indoor unit and outdoor unit.

Match the terminal board numbers and connection

cord colors with those of the indoor unit side. Erroneous wiring may cause burning of the electric parts.

Connect the connection cord and the power supply

cord firmly to the terminal board. Imperfect installation may cause a fire.

Always fasten the outside covering of the connec-

tion cord and the power supply cord with the cord clamp. (If the insulator is chafed, electric leakage may occur.)

Always connect the ground wire.

(1)

Remove outdoor unit valve cover and connect the power supply cord and the outdoor unit connection cord wired at the indoor unit.

(2)

Fasten the power supply cord and connection cord with cable clip and binders as shown in (Fig. 38).

Fig. 37

Control box

Cord clamp

Power cord

Terminal board

LN3

Power cord

Ground

Connection cord (indoor unit and outdoor unit connection cord)

(N)

Make longer than the other wires.

REMOTE CONTROLLER

INSTALLATION

When mounting the remote controller, refer to the enclosed REMOTE CONTROLLER INSTALLATION INSTRUCTION SHEET. Then, make the necessary settings on both the remote controller and the main unit.

Insert the end of a flat blade screwdriver at the arrow parts of the

•

groove at the side of the remote controller case and remove the remote controller case top by turning the screwdriver. Disconnect the remote controller cord from the remote controller

•

terminal board.

Fig. 40

CLOCK

TEMP

NON STOP

TIMER

SET TIME TEMP./DAY FAN

MODE

CLOCK ADJUST

When remote controller exposed

(1)

Make a notch in the thin part ( part of Fig. 40) at the remote

1) controller case top and bottom with nippers, file, etc. Connect the remote controller cord to the remote controller

2) terminal board specified in (Fig. 41). Clamp the remote controller cord sheath with the binder

3) (small) as shown in Fig. 41. Cut off the excess binder.

4) Clamp the remote controller cord to a wall, etc. with the re-

5) mote controller cord clamp furnished (Fig. 42).

Fig. 41

Remote controller cord

Binder (small)

Red

ZONE

SET

AUTO

°C

HIGH

CONTROL

ENERGY SAVE

DAY OFF

White

COOL

DEFROST

MASTER

CONTROL

START/STOP

Black

Remote controller terminal board

POWER

WARNING

The rated voltage of this product is 1ø 220-240 V 50 Hz.

Before turning on the verify that the voltage is within the 198 V to 264 V range.

Always use a special branch circuit and install a special receptacle to supply power to the air conditioner.

Use a circuit breaker and receptacle matched to the capacity of the air conditioner. (Install in accordance with standard.) When connecting the power supply to the outdoor unit, always install a circuit breaker between the outdoor unit and the power supply. Use the circuit breaker has an isolation distance of at least 3 mm between the contacts of each pole.

Perform wiring work in accordance with standards so that the air conditioner can be operated safely and positively.

Install a leakage circuit breaker in accordance with the related laws and regulations and electric company standards.

CAUTION

The power source capacity must be the sum of the

air conditioner current and the current of other electrical appliances. When the current contracted capacity is insufficient, change the contracted capacity.

When the voltage is low and the air conditioner is

difficult to start, contact the power company the voltage raised.

TEST RUNNING

1. REMOTE CONTROLLER

Supply power to the crankcase heater 12 hours before the start

•

of operation in the winter. For test running, when the remote controller FAN CONTROL

•

button and MASTER CONTROL button are pressed simultaneously for more than three seconds when the air conditioner is not running, the air conditioner starts and TEST is displayed on the remote controller display. However, the TEMP./DAY setting button does not function, but all other buttons, displays, and protection functions operate (Fig. 44).

Fig. 44

CLOCK

NON STOP

TIMER

SET TIME TEMP./DAY FAN

MODE

CLOCK ADJUST

TEMP

ZONE

SET

°C

AUTO

HIGH

CONTROL

DAY OFF

COOL

DEFROST TEST

MASTER

CONTROL

START/STOP

To stop test running, press the START/STOP button.

•

For the operation method, refer to the operating manual and per-

•

form operation check. Check that there are no abnormal sounds or vibration sounds

•

during the test running.

2. OUTDOOR UNIT

When the outdoor temperature drops, the outdoor unit's fans may switch to low speed, or one of the fans may stop intermittently.

ERROR: HEAT & COOL (REVERSE CYCLE) MODEL ONLY

The LED lamps operate as follows (Table 7) according to the error contents. The LED lamps are on the outdoor unit board.

OFF

4 quick flash repeated

5 quick flash repeated

6 quick flash repeated

7 quick flash repeated

8 quick flash repeated

When the fault is cleared, the LED lamp goes off. However, for discharge pipe temperature abnormal and high pressure abnormal, the LED lamp lights continuously for 24 hours, as long as the power is not turned off.

Fig. 46 FAN PERFORMANCE AND AIR FLOW

EXTERNAL STATIC PRESSURE (mmAq)

Table 7

Error display

Error contentsLED2LED1

0.1 sec.

0.5 sec.

2 sec.

0.5 sec.

2 sec.

0.5 sec.

2 sec.

0.1 sec.

OFF

Quick flash continuedQuick flash continued

OFF

Lighting continued1 quick flash repeated

OFF

Lighting continued2 quick flash repeated

OFF

Lighting continued3 quick flash repeated

Lighting continued

Model abnormal or EEPROM abnormal

Power source connection error

Discharge temperature sensor error

Outdoor heat exchanger temperature sensor error

Outdoor temperature sensor error

Communication signal error

Indoor unit error

Discharge temperature abnormal

High pressure abnormal

STATIC PRESSURE

CHARACTERISTIC

EXTERNAL STATIC PRESSURE

RECOMMENDED RANGE

20 196

10 98

0 0

400 600 800 1,000 1,200 1,400 1,600 1,800 2,000 2,200 2,400

LOW

HIGH

AIR FLOW (m

/H)

(Pa)

3. SPECIAL ITEMS

When connecting the square duct and round duct, use the optional square flange or round flange and flexible duct.

Fig. 51

Square flange

Model name : UTD-SF045 (P/N 9054229009) (P/N 9098180007)

• Square flange dimensions

40 mm

(1-19/32”)

204 mm

(8-5/16”)

1,065 mm (41-15/16”)

Round flange

Model name : UTD-RF204 (P/M 9093160004)

• Round flange dimensions

ø225 mm

(8-7/8

”)

ø205

ø195

Flexible duct

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

ø235 mm

”)

(9-1/4

ø200 mm (7-7/8”) L 2 m (78-3/4”)

Fig. 54

CAUTION

When removing the cabinet (iron plate), be careful not

to damage the indoor unit internal parts and surrounding area (outer case).

When processing the cabinet (iron plate), be careful

not to injure yourself with burrs, etc.

(2)

Install the round flange (optional parts) to the fresh air intake.

Fig. 55

(3)

Connect the duct to the round flange.

(4)

Seal with a band and vinyl tape, etc. so that air does not leak from the connection.

Fig. 56

Duct

PART NO. 9361795037