Daewoo DTA-240LH User Manual

CONTENTS
RUN AND CHECK UP ....................................................................................................................................................	2
WHERE TO INSTALL.....................................................................................................................................................	3
INSTALLATION ..............................................................................................................................................................	3
INDOOR UNIT
DIMENSIONS OF INDOOR UNIT [DTA-240LH] .........................................................................................	4
INDOOR UNIT INSTALLATION ....................................................................................................................	5
REFRIGERANT PIPE CONNECTION..........................................................................................................	6
AIR PURGE ...................................................................................................................................................	6
REFRIGERANT SUPPLEMENT ...................................................................................................................	7
LEAK CHECKUP ...........................................................................................................................................	7
PIPE INSULATION AND ISOLATION...........................................................................................................	7
DRAIN HOSE INSTALLATION .....................................................................................................................	8
DRAINAGE TEST..........................................................................................................................................	9
INDOOR UNIT WIRE CONNECTION.........................................................................................................	10
OUTDOOR UNIT
OUTDOOR UNIT WIRE CONNECTION.....................................................................................................	11
CHECKUP GROUNDING ...........................................................................................................................	12
FRONT PANEL
FRONT PANEL INSTALLATION ................................................................................................................	13
OWNER’S MANUAL.....................................................................................................................................................	14

1

RUN AND CHECK UP

Before the installation is carried out completely, check these out.

•Pipe connection and gas leaks

•Electric wiring and isolation treatment of drain pipes

•Drainage system and insulation treatment of drain pipes

•Grounding wire connection

Wire Remote Controller

1.Turn on the air conditioner. (If you can see the present temperature on the LCD of the wire remote controller, it means the power supply is correctly connected.)

2.Set the mode 'Auto' and check if the outdoor unit is working properly.

(The outdoor unit runs 30 seconds after the first operation.)

3.Press the Fan Dir. button and check if regulating the angle of Flap is normal.

4.Complete the operation.

If any error occurs, ERR is shown on the wire remote controller.

Wireless Remote Controller

1.Turn on the air conditioner.(If you can see the present temperature on the LCD of the wire remote controller, it means the power supply is correctly connected.)

2.Set the mode 'Auto' and check if the outdoor unit is working properly.(The outdoor unit runs 30 seconds after the first operation.)

3.Complete the operation.

2

WHERE TO INSTALL

Cautions before installation

•Read this manual thoroughly before you attempt to install the air conditioner.

•Drilling work through the ceiling must be done before installation.

•After installation, be sure to take a dry run and check if the machine is working properly.

•To avoid possible personal injury or property damage, be sure that installation will be done by instructed employees.

•In case that installation in those places as below is inevitable, contact an authorized company.

-Where the oily vapor or wheat flour is around

-Where the lubricating oil(such as cutting oil) is around

-Where inflammable gas flows in and remains.

-Where corrosive gas is produced or flows in and remains

-Where ducts are restricted to be installed

-Where surroundings of installation is not ordinary

Indoor Unit

•Where the unit can be sufficiently held up and no vibration is felt.(must receive the weight of more than 150kg)

•Where around the air inlet and outlet is clear.

•Where condenser water can be easily let out, and connecting pipes to the outdoor unit is easy.

•Where heat or vapor around the unit is clear(must be far away from kitchen or other heat sources)

•Where ceiling and floor is at a distance of lower than 3m.

•Where the unit can stand level with floor.

Outdoor Unit

•Out of rain or direct rays of the sun and well-ventilated

•Where not to bar the way

•Where the noise and heated air wouldn't disturb neighbourhood or animals and plants.

•Not to be installed on the outside railings of window or outside wall. (to avoid possible personal injury and no after service available)

•Where pipes or wires can be easily connected to the unit.

•Where grounding is easy.

•Where installation distance is maintained long enough.

3

INDOOR UNIT

DIMENSIONS OF INDOOR UNIT [DTA-240LH]

940

940

	DRAIN OUTLET
250	250
98	70

50 61.5

POWER CORD

CONNECTING HOLE

664 840 880 CEILING DRILLING SIZE

DRAINAGE CHECKUP HOLE

48

34.7

4

INDOOR UNIT INSTALLATION

1.Drill a hole with a depth of 880mm where the indoor unit will be installed.

•Before carrying out installation, be cautious of the direction of drainage pipes and refrigerant pipes.

880

880

2.Drill a hole through the ceiling or ceiling rest and insert the base bolt.

•In case that the bolt for supporting ceiling is over 1.5M, vibration isolation is needed.

Vibration isolating device is not included in product.

Concrete

Anchor Bolt

for fixing product Suspension Bolt

3.Bring the product fixing bolt together with nut and washer as the figure shows.

•But the space for a hanger bracket to be inserted must be secured.

			SPRING WASHER
	NUT

PLANE WASHER

BOLT

4.Insert the hanger bracket between the fixed nuts on the ceiling Suspension Bolt and hang the indoor unit.

Suspension Bolt

nuts

Product fixing bracket

5. Tighten the nuts and fix the indoor unit completely.

6.Select where to put the indoor unit, considering the enough space the front panel can be fit in.

Product's level surface must be considered and adjust the level, and then fix the product.

0~5mm

overhead side

20

5

REFRIGERANT PIPE CONNECTION

• Refrigerant pipe connection

After finishing connecting the refrigerant piping, check any refrigerant leak and wrap it with insulation material, and cover it again with vinyl tape.

Tighten the flare nuts with torque rule.

Warning

•Use two spanners in connecting the union to the flare nut.

•Do not bend the pipes more than twice and work on the longer radius.

•Do not remove the cap on the flare until the clamping is done.

AIR PURGE

If there is air or nitrogen gas which isn't to be condensed in the pipes, outflow pressure rise, power loss, condenser heating, and air conditioner deterioration might occur, and therefore air purge is essential.

Air purge is supposed to use the pulsometer pump, and can also use additional refrigerant in the unit.

1. Connect the pipes of indoor/outdoor units.

In carrying out this work, tighten the flare nut 4 rather loosely.(screwable with hand)

3.Press the nut 6 2~3 times(1 time/3 sec.) and vacuum the air in the service valve completely.

2.Remove the cap nuts 8, 9, 10, and tighten the cap nut 7 1~2 seconds after screwing it with a angle of 90 counterclockwise with hexagon wrench. In doing this work, tight the flare nut 4 completely.

4.Open the gas/liquid side service valves fully with use of hexagon wrench.

INDOOR

OUTDOOR

6

REFRIGERANT SUPPLEMENT

In case that the length of the refrigerant pipe is over 5m, refrigerant must be supplemented.(max.20m)

But the amount of the supplementary refrigerant is variable according to installing condition, so check the condition before supplementing refrigerant.

This work must be carried out by qualified employees.

• In case that vertical length is over 10m, install an oil trap on the gas pipes.

LEAK CHECKUP

Indoor Unit	Outdoor Unit
To check up gas leak, the end of flare nut	valve on C, D part
on A, B part.

PIPE INSULATION AND ISOLATION

To prevent vapor from forming inside the pipes, insulate each pipe with heat-resisting polyethylrne resin. Following figure shows how to insulate and isolate the refrigerant pipes correctly.

ELECTRIC WIRE	FINISHING TAPE	ELECTRIC WIRE	FINISHING TAPE
PIPE LIQUID	PIPE GAS	PIPE LIQUID	PIPE GAS
	PIPE INSULATION
			PIPE INSULATION
	(X)		(O)

7

DRAIN HOSE INSTALLATION

1. Drain hose connection

In case that the drain hose is connected, bonding work is necessary for preventing leaks, and then make it immovable with fixing stuff such as adhesive band.(adhesive band is not included in product)

•outside diameter of drain hose connecting hole is 32mm

outside diameter of drain hose connecting hole is 32mm

2. Insulating treatment

Insulating treatment must be carried out for the condenser water not to leak out from drain pipes.

Be sure there is no gap between the product and hose.

•Inside diameter of flexible hose connecting hole is 32mm.

•In case that outside temperature and humidity is high, make the insulating material by 10~30mm.

Drain hose	Insulation
connecting hole	Flexible	drain
		pipe
	hose
main
body
	bonding	adhesive band
	work	(not included in

product)

3. Supporting and connecting pipes

To let out the condenser water, drain pipes must be at down-slope.

In case that drain pipes are not at down-slope, problems such as reverse flow of condenser water might occur.

If the pipe is long, a rest that can support the pipe needs to be installed.(to be worked within 1~1.5M)

pipe rest

Main body

pipe rest down-slope(over 1/100)

overhead side

4. Horizontal extension of pipe is impossible.

In case that drain hose is above the connecting hole, it must be connected up to the hole at a right angle within 30cm crossways from the product. Height of the drain hose is at a right angle within 600mm from the drain hose connecting hole.

	within 60cm	elbow	flexible hose
			drain pipe
		25A VP	(with down-slope)
	drain hose	horizontal extension within
		30cm is not impossible
	connecting
	hole

Warning!

After connecting the flexible hose to the drain hose connecting hole, connecting the hose up at a right angle is restricted.

8

DRAINAGE TEST

1. Remove the two bolts from checkup unit on the side of drain pipe and detach the checkup cover.

3. Check if the draining is normal. pumping/draining

--->Checking drainage is available during turn-off, cooling and heating.

2.Pour the prepared water inside the checkup unit.

•In case of failing to pour the water inside the checkup unit, water might overflow the product.

4. Reinstall the checkup cover.

9

INDOOR UNIT WIRE CONNECTION

DTA-240LH

3113544330

10