Friedrich Mr24y3j Owner's Manual

Installation Manual

TYPE : WALL MOUNTED

Applied Models : M24YJ M30YJ M36YJ

ENGLISH

FRANÇAIS ESPAÑOL

960-911-02

ENGLISH

• Do not cool excessively indoors. This may be harmful for your health and may consume more electricity.

• Block sunlight with blinds or curtains while you are operating the air conditioner.

• Keep doors or windows closed tightly while you are operating the air conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

• Speed up the fan to cool or warm indoor air quickly, in a short period of time.

• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below:

TIPS FOR SAVING ENERGY

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IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product.

WARNING

It can result in serious injury or death when the directions are ignored.

CAUTION

It can result in minor injury or product damage when the directions are ignored.

WARNING

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• Air conditioner Shall be installed in accordance with national wiring regulations.

• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similary qualified persons in order to avoid a hazard.

• The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.

Installation

• Always perform grounding.

- Otherwise, it may cause electrical shock.

• Don’t use a power cord, a plug or a loose socket which is damaged.

- Otherwise, it may cause a fire or electrical shock.

• For installation of the product, always contact the service center or a professional installation agency.

- Otherwise, it may cause a fire, electrical shock, explosion or injury.

• Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit.

- If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not

attached securely, it could result in a fire or electric shock due to dust, water, etc.

• Always install an air leakage breaker and a dedicated switching board.

- No installation may cause a fire and electrical shock.

• Do not keep or use flammable gases or combustibles near the air conditioner.

- Otherwise, it may cause a fire or the failure of product.

• Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time.

- It may cause injury or an accident.

• Do not disassemble or repair the product randomly.

- It will cause a fire or electrical shock.

• Do not install the product at a place that ther is concern of falling down.

- Otherwise, it may result in personal injury.

• Use caution when unpacking and installing.

- Sharp edges may cause injury.

• Thickness of copper pipes used are as shown “Flaring work” Table.

- Never use copper pipes thinner than that in the table even when it is available on the market

• Do not use copper pipes having a collapsed.

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- Otherwise, the expansion valve or capillary tube may become blocked with contaminants.

• For R410A model, use piping, flare nut and tools which is specified for R410A refrigerant.

- Using of (R22) piping, flare nut and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury.

• It is desirable that the amount of residual oil less than 40 mg/10m.

Operation

• Do not share the outlet with other appliances.

- It will cause an electric shock or a fire due to heat generation.

• Do not use the damaged power cord.

- Otherwise, it may cause a fire or electrical shock.

• Do not modify or extend the power cord randomly.

- Otherwise, it may cause a fire or electrical shock.

• Take care so that the power cord may not be pulled during operation.

- Otherwise, it may cause a fire or electrical shock.

• Unplug the unit if strange sounds, smell, or smoke comes from it.

- Otherwise, it may cause electrical shock or a fire.

• Keep the flames away.

- Otherwise, it may cause a fire.

• Take the power plug out if necessary, holding the head of the plug and do not touch it with wet hands.

- Otherwise, it may cause a fire or electrical shock.

• Do not use the power cord near the heating tools.

- Otherwise, it may cause a fire and electrical shock.

• Do not open the suction inlet of the indoor/outdoor unit during operation.

- Otherwise, it may electrical shock and failure.

• Do not allow water to run into electrical parts.

- Otherwise, it may cause the failure of machine or electrical shock.

• Hold the plug by the head when taking it out.

- It may cause electric shock and damage.

• Never touch the metal parts of the unit when removing the filter.

- They are sharp and may cause injury.

• Do not step on the indoor/outdoor unit and do not put anything on it.

- It may cause an injury through dropping of the unit or falling down.

• Do not place a heavy object on the power cord.

- Otherwise, it may cause a fire or electrical shock.

• When the product is submerged into water, always contact the service center.

- Otherwise, it may cause a fire or electrical shock.

• Take care so that children may not step on the outdoor unit.

- Otherwise, children may be seriously injured due to falling down.

ENGLISH

CAUTION

Installation

• Install the drain hose to ensure that drain can be securely done.

- Otherwise, it may cause water leakage.

• Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors.

- Otherwise, it may cause dispute with the neighbors.

• Always inspect gas leakage after the installation and repair of product.

- Otherwise, it may cause the failure of product.

• Keep level parallel in installing the product.

- Otherwise, it may cause vibration or water leakage.

Operation

• Avoid excessive cooling and perform ventilation sometimes.

- Otherwise, it may do harm to your health.

• Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent.

- The appearance of the air conditioner may deteriorate, change color, or develop surface flaws.

• Do not use an appliance for special purposes such as preserving animals vegetables, precision machine, or art articles.

- Otherwise, it may damage your properties.

• Do not place obstacles around the flow inlet or outlet.

- Otherwise, it may cause the failure of appliance or an accident.

ENGLISH

TABLE OF CONTENTS

2TIPS FOR SAVING ENERGY 3 IMPORTANT SAFETY INSTRUCTIONS 7 INSTALLATION PARTS 7 INSTALLATION TOOLS 8 INSTALLATION MAP 9 INSTALLATION

9 Select the best Location

10 Fixing Installation Plate

10 Drill a Hole in the Wall

10 Flaring Work

11 Connecting the Piping

15 Connecting the Cables

18 Checking the Drainage

19 Forming of the Piping

19 Air Purging

23 Test Running

24 Installation guide at the seaside

25 Piping Length and Elevation

25 Operation ranges

ENGLISH

INSTALLATION TOOLS

Name

Quantity Shape

Installation plate

1 EA

Type "A" screw

Type "B" screw

8 EA

2 EA

Remote control

holder

1 EA

The feature can be changed according a type of model.

Screws for fixing panels are attached to decoration panel.

INSTALLATION PARTS

Figure FigureName

Screw driver

Electric drill

Measuring tape, Knife

Hole core drill

Spanner

Torque wrench

Name

Multi-meter

Hexagonal wrench

Ammeter

Gas-leak detector

Thermometer,

Level

Flaring tool set

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INSTALLATION MAP

NOTE

• You should purchase the installation parts.

* The feature can be changed according to the type of model.

Air Discharge

Installation plate Sleeve

Bushing-Sleeve Putty(Gum Type Sealant)

Bend the pipe as closely on the wall as possible, but be careful that it doesn't break.

Operation Indication Lamps/

Signal Receptor

Forced Operation Button

Saddle

Air Inlet

Air Outlet

Base Plate

Vinyl tape (Wide)

• Apply after carrying out a drainage test.

• To carry out the drainage test, remove the air ﬁlters and pour water into the heat exchanger.

Gas side piping Liquid side piping Additional drain pipe

Vinyl tape (Narrow) Drain Hose Connecting cable (*)

Tubing Cover

(*)

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Select the best Location

Indoor unit

- There should not be any heat or steam near the unit.

- Select a place where there are no obstacles around the unit.

- Make sure that condensation drainage can be conveniently routed away.

- Do not install near a doorway.

- Ensure that the gap between a wall and the left (or right) of the unit is more than 4in. The unit should be installed as high as possible on the wall, allowing a minimum of 8in from ceiling.

- Use a metal detector to locate studs to prevent unnecessary damage to the wall.

* Recommended height 6.5ft from the floor * The feature can be changed according to the

type of model.

Outdoor unit

- If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.

- Ensure that the space around the back side and other sides is more than 12in. The space in front of the unit should be more than 28in.

- Do not place animals and plants in the path of the warm air.

- Take the weight of the air conditioner into account and select a place where noise and vibration are minimum.

- Select a place where the warm air and noise from the air conditioner do not disturb neighbors.

NOTE

Remove obstructions to prevent blockage of airflow path.

INSTALLATION

More than 4

More than 8

More than 4

(Unit : In)

More than

12in

Fence or

obstacles

Sunroof

More than

28in

More than

24in

(Unit : in)

More than

12in

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Fixing Installation Plate

The wall you select should be strong and solid enough to prevent vibration

1 Mount the installation plate on the wall with

type "A" screws.

- Mount the installation plate horizontally by aligning the centerline using Horizontal meter .

2 Measure the wall and mark the centerline.

It is also important to use caution concerning the location of the installation plate. Routing of the wiring to power outlets is through the walls typically. Drilling the hole through the wall for piping connections must be done safely.

Drill a Hole in the Wall

- Drill the piping hole with a ø65mm hole core drill. Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side.

Flaring Work

Main cause for gas leakage is due to defect of flaring work. Carry out correct flaring work in the following procedure.

1 Use the piping kit accessory or the pipes

purchased locally.

2 Measure the distance between the indoor

and the outdoor unit.

3 Cut the pipes a little longer than measured

distance.

4 Cut the cable 1.5m (4.9 ft) longer than the

pipe length.

CAUTION

Use the sleeve to prevent damage for tube assembly.

Installation Plate

Chassis

Hook

Type "A" Screws

Cut the pipes and the cable

WALL

Indoor

Outdoor

Bushing

Sleeve

5-7mm

(3/16"~5/16")

Ø65 Ø65

120

Left rear piping Right rear piping

Installation plate

110

Copper

pipe

90°

Slanted Uneven Rough

ENGLISH

Pipe

Reamer

Point down

Outside diameter A Thickness

mm inch mm mm

Ø6.35 1/4" 1.1~1.3 0.7

Ø9.52 3/8" 1.5~1.7 0.8

Ø12.7 1/2" 1.6~1.8 0.8

Ø15.88 5/8" 1.6~1.8 1.0

1. Completely remove all burrs from the cut cross section of pipe/tube.

2. While removing burrs put the end of the copper tube/pipe in a downward direction while removing burrs location is also changed in order to avoid dropping burrs into the tubing.

- Remove flare nuts attached to indoor and

outdoor units, then put them on the pipe/tube which have completed its burr removal. (not possible to put them on after finishing flare work)

Flaring work

1 Firmly hold copper pipe in a bar with the di-

mension shown in table below.

2 Carry out flaring work with the flaring tool.

1 Compare the flared work with the figures

given below.

2 If a flared section is defective, cut it off and

do flaring work again.

Connecting the Piping

1 Pull the screw cap at the bottom of the

indoor unit

2 Remove the chassis cover from the unit by

loosing 5 screws (Be careful not to scratch Horizontal Vane Main!)

Burrs removal

Putting nut on

Check

Flare nut

Copper tube

Handle

Bar

"A"

Bar

Yoke

Cone

Copper pipe

Clamp handle

Red arrow mark

Smooth all round

Even length

all round

Inside is shiny without scratches

= Improper ﬂaring =

Surface

damaged

Cracked Uneven

Inclined

thickness

Chassis cover

ENGLISH

3 Pull back the tubing holder. 4 Remove pipe port cover and positioning

the tubing

* The feature can be changed according to

type of model.

Good case

- Press on the tubing cover and unfold the tubing to downward slowly. And then bend to the left side slowly.

Bad case

- Following bending case from right to left directly may cause damage to the tubing.

* The feature can be changed according to

type of model.

1 Hook the indoor unit onto the upper portion

of the installation plate.( engage the three hooks at the top of the indoor unit with the upper edge of the installation plate) Ensure that the hooks are properly seated on the installation plate by moving it left and right

Installation of Indoor Unit

CAUTION

Installation Information. For right piping. Follow the instruction above.

Back side view

Right

Tubing holder

Backwards

Left

Pipe Port

Installation plate

ENGLISH

Unlock the tubing holder from the chassis and mount between the chassis and installation plate in order to separate the bottom side of the indoor unit from the wall.

* The feature can be changed according to the

type of model.

Raise the cover of terminal block.

Insert the connecting cable through the bottom side of indoor unit and connect the cable. (You can see detail contents in ‘Connecting the cables’ section.)

Piping

Connecting pipe

Connecting cable

Ta p e

Drain hose

3 Tape the tubing pipe, drain hose and the

connection cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side can cause overflow from the drain pan through the inside of the unit.

* The feature can be changed according to

the type of model.

CAUTION

If the extension drain hose is routed inside the room, insulate the hose with an insulation material* so that dripping from sweating (condensation) could not damage furniture or floors.

• Foamed polyethylene or equivalent is

recommended.

NOTE

Insert the drain hose at left side when you use left side piping type.

Tubing Holder

Control Cover

1(L1)

2(L2)

1(L) 2(N)

Power connecting cable

Tape

Connecting cable

Drain hose

Connecting pipe

ENGLISH

1 Align the center of the pipes and sufficiently

tighten the flare nut by hand

2 Tighten the flare nut with a wrench

3. When needed to extend the drain hose of indoor unit, assembly the drain pipe as shown on the drawing.

Outside Diameter Torque

mm inch kgf·cm N·m

Ø6.35 1/4 180~250 17.6~24.5

Ø9.52 3/8 340~420 33.3~41.2

Ø12.7 1/2 550~660 53.9~64.7

Ø15.88 5/8 630~820 61.7~80.4

Connecting the installation pipe

and drain hose to the indoor unit.

Wrap the insulation material around the connecting portion.

1 Overlap the connection pipe insulation ma-

terial and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there may be no gap.

2 Set the tubing cutting line upward. Wrap

the area which accommodates the rear piping housing section with vinyl tape.

3 Bundle the piping and drain hose together

by wrapping them with vinyl tape sufficient enough to cover where they fit into the rear piping housing section.

* Tubing cutting line have to be upward.

Indoor Outdoor

Indoor Unit Drain hose

Insulation

(More than 100~300mm

length and 7mm thickness)

Extension drain hose

Insulation material

Indoor unit tubing Flare nut Pipes

Open-end wrench (ﬁxed)

Flare nut

Wrench

Indoor unit tubing

Connection pipe

Cutting Line

Gas Pipe

Liquid Pipe

Cutting Line

Good Case Bad Case

Connection pipe Vinyl tape (wide)

Wrap with vinyl tape

Indoor unit pipe

Connecting cable

Pipe

Vinyl tape(narrow)

Wrap with vinyl tape

Drain pipe

Adhesive

Indoor unit drain hose

Vinyl tape(narrow)

Pipe

Vinyl tape(wide)

Drain hose

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Connecting the Cables

Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No. are the same as those of the indoor unit.)

CAUTION

- The circuit diagram is a subject to change without notice.

- The earth wire should be longer than the common wires.

- When installing, refer to the circuit diagram on the chassis cover.

- Connect the wires firmly so that they may not be pulled out easily.

- Connect the wires according to color codes, referring to the wiring diagram.

- Finally, tighten the flare nut with torque wrench until the wrench clicks. When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench.

Outdoor unit

Torque wrench

Liquid side piping

(Smaller diameter)

Gas side piping

(Bigger diameter)

Outside Diameter Torque

mm inch kgf·cm N·m

Ø6.35 1/4 180~250 17.6~24.5

Ø9.52 3/8 340~420 33.3~41.2

Ø12.7 1/2 550~660 53.9~64.7

Ø15.88 5/8 630~820 61.7~80.4

Connecting the Piping

- Remove the tubing cover from the unit by loosening the screw.

- Align the center of the pipings and sufficiently tighten the flare nut by hand.

Tubing Cover

Cover control

Terminal Block

Outdoor unit

ENGLISH

CAUTION

The power cord connected to the outdoor unit should be complied with the following specifications (UL recognized or CSA certified).

CAUTION

- Assemble it with conduit.

Power

Capacity(Btu/h)

24k,30k,36k

"A" 12

Power supply cable

The power connecting cable connected to the indoor and outdoor unit should be complied with the following specifications (UL recognized or CSA certified).

Connecting

Cable

Capacity(Btu/h)

24k,30k,36k

"B" 18

Connecting cable

Indoor unit

1 Insert the connecting cable through the

bottom side of indoor unit and connect the cable (You can see detail contents in 'Connecting the cables' section)

2 Secure the cable onto the control board

with the cable retainer.

3 Tape the tubing pipe, drain hose and the

connection cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side can cause overflow from the drain pan through the inside of the unit.

AWG_“B”

10±3mm

GN/YL

20mm

AWG_“A”

10±3mm

GN/YL

20mm

Control Cover

1(L1)

2(L2)

1(L) 2(N)

Power connecting cable

ENGLISH

CAUTION

According to the confirmation of the above conditions, prepare the wiring as follows.

1 Never fail to have an individual power circuit

specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover.

2 The screw which fasten the wiring in the

casing of electrical fittings are liable to become loose from vibrations to which the unit is subjected during the transportation. Check them and make sure that They all are tightly fastened. (If they are loose, it could cause burn-out of the wires.)

3 Specification of power source. 4 Confirm that electrical capacity is sufficient. 5 See that the starting voltage is maintained

at more than 90 percent of the rated voltage marked on the name plate.

6 Confirm that the cable thickness is as speci-

fied in the power source specification. (Particularly note the relation between cable length and thickness.

7 Always install an earth leakage circuit

breaker in a wet or moist area.

8 The following would be caused by voltage

drop.

- Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the normal function of the overload.

9 The means for disconnection from a power

supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active(phase) conductors.

CAUTION

Provide the circuit breaker between power source and the unit as shown by

Outdoor unit

- Connect the wires to the terminals on the control board individually.

- Secure the cable onto the control board with the cord clamp.

- Use a recognized circuit breaker between the power source and the unit. A disconnecting device to adequately disconnect all supply lines must be fitted.

*The feature can be changed according a type

of model.

Circuit Breaker(A)

Capacity(Btu/h)

24k,30k,36k

Outdoor unit

Terminal block

Over 5mm

(0.2")

Cover control

Conduit panel

Connecting

cable

Power supply

cord

1(L1) 2(L2) 1(L1) 2(L2)

Main power source

Air

Conditioner

Circuit Breaker Use a circuit breake or time delay fuse.

ENGLISH

* The feature can be changed according to the

type of model.

Checking the Drainage

1 Pour a glass of water on the evaporator. 2 Ensure the water flows through the drain

hose of the indoor unit without any leakage and goes out the drain exit.

To check the drainage.

2 Do not set the drain hose like the

following.

*The feature can be changed according a type

of model.

1 The drain hose should point downward for

easy drain flow.

Do not raise

Water leakage

Accumulated drain water

Air

Waving

Water leakage

Tip of drain hose dipped in water

Water leakage

Ditch

Less than 50mm gap

Drain piping

Downward slope

Leakage checking

Connecting area

drain hose

Drain pan

Drain hose

Leakage

checking

ENGLISH

In cases where the outdoor unit is installed above the Indoor unit perform the following.

1 Tape the piping and connecting cable from

down to up.

2 Secure the taped piping along the exterior

wall. Form a trap to prevent water entering the room.

3 Fix the piping onto the wall using saddle or

equivalent

Air Purging

The air and moisture remaining in the refrigerant system have undesirable effects as indicated below.

- Pressure in the system rises.

- Operating current rises.

- Cooling(or heating) efficiency drops.

- Moisture in the refrigerant circuit may freeze and block capillary tubing.

- Water may lead to corrosion of parts in the refrigeration system.

Therefore, after evacuating the system, take a leak test for the piping and tubing between the indoor and outdoor unit.

Forming of the Piping

Form the piping by wrapping the connecting portion of the indoor unit with insulation material and secure it with two kinds of vinyl tapes.

- If you want to connect an additional drain hose, the end of the drain outlet should be routed above the ground. Secure the drain hose appropriately.

In cases, where the outdoor unit is installed below the Indoor unit, perform the following.

1 Tape the piping, drain hose and connecting

cable from down to up.

2 Secure the tapped piping along the exterior

wall using saddle or equivalent.

In cases, where the outdoor unit is installed above the Indoor unit, perform the following.

Drain hose

Seal small openings around pipings with a gum type sealant.

Saddle

Pipe

Vinyl tape(narrow)

Wrap with vinyl tape(wide)

Connecting cable

Pipings

Taping

Drain hose

Seal a small opening around the pipings with gum type sealant.

Trap

Trap is required to prevent water from entering into electrical parts.

ENGLISH

- Preparation

Check that each tube(both liquid and gas side tubes) between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed. Remove the service valve caps from both the gas and the liquid side on the outdoor unit. Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage.

- Leak test

Connect the manifold valve(with pressure gauges) and dry nitrogen gas cylinder to this service port with charge hoses.

Air purging with vacuum pump

CAUTION

Be sure to use a manifold valve for air purging. If it is not available, use a stop valve for this purpose. The knob of the 3-way valve must always be kept close.

- Pressurize the system to maximum 250 P.S.I.G. (17.6 kgf/cm

G) (R-22 model) or 400 P.S.I.G. (28.1 kgf/cm2G) (R-410A model) with dry nitrogen gas and close the cylinder valve when the gauge reading reaches 250 P.S.I.G. (17.6 kgf/cm

G) (R-22 model) or 400 P.S.I.G. (28.1 kgf/cm2G) (R-410A model). Next step is leak test with liquid soap.

CAUTION

To avoid nitrogen entering the refrigerant system in a liquid state, the top of the cylinder must be higher than its bottom when you pressurize the system. Usually, the cylinder is used in a vertical standing position.

WARNING

There is a risk of fire and explosion.

Inert gas (nitrogen) should be used when you check plumbing leaks, cleaning or repairs of pipes etc. If you are using combustible gases including oxygen, product may have the risk of fires and explosions.

- Do a leak test of all joints of the tubing(both indoor and outdoor) and both gas and liquid side service valves. Bubbles indicate a leak. Be sure to wipe off the soap with a clean cloth.

- After the system is found to be free of leaks, relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder. When the system pressure is reduced to normal, disconnect the hose from the cylinder.

*The feature can be changed according a type

of model.

- Remove the caps from the 2-way and 3-way valves.

- Remove the service-port cap from the 3-way valve.

- Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping.

- If bubbles come out, the pipes have leakage

Soap water method

Indoor unit

Outdoor unit

Charge hose

Nitrogen gas cylinder(in vertical standing position)

Manifold valve

Pressure gauge

Lo Hi

ENGLISH

- With a service valve wrench, turn the valve of liquid side counter-clockwise to fully open the valve

- Turn the valve of gas side counter clockwise to fully open the valve

- Loosen the charge hose connected to the gas side service port slightly to release the pressure, then remove the hose.

- Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench. This process is very important to prevent leakage from the system.

Finishing the Job

- Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo" knob of the pressure Gauge is open. Then, run the vacuum pump. The operation time for evacuation varies with tubing length and capacity of the pump. The following table shows the time required for Evacuation.

- When the desired vacuum is reached, close the knob of the 3-way valve and stop the vacuum pump.

Evacuation

Outdoor unit

Gas side

Liquid side

Cap

2-way valve(Close)

3-way valve(Close)3-way valve(Close)

2-way valve(Close)

3-way valve(Close)

Required time for Evacuation when 30 gal/h

vacuum pump is used

If tubing length is

less than 10m (33 ft)

If tubing length is

longer than 10m

(33 ft)

10 min. or more 15 min. or more

Indoor unit

Outdoor unit

Manifold valve

Pressure gauge

Lo Hi

Open

Vacuum pump

ENGLISH

- Replace the valve caps at both gas and liquid

side service valves and fasten them tight. This completes air purging with a vacuum pump.

- Replace the pipe cover to the outdoor unit by

one screw Now the air conditioner is ready for test run.

- Fix the outdoor unit with a bolt and

nut(ø10mm).

- When installing on the wall, roof or rooftop,

anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake.

- If the vibration of the unit is transmitted to the

pipe, secure the unit with an anti-vibration rubber.

Settlement of outdoor unit

Operate the unit for 15~20 minutes, then check the system refrigerant charge:

- Measure the pressure of the gas side service valve.

- Measure the air temperature from inlet and outlet of air conditiioner.

- Ensure the difference between the inlet and outlet temperature is more than 8°C.

- For reference; the gas side pressure at optimum condition is shown on table (cooling)

The air conditioner is now ready to use.

*The feature can be changed according a type of

model.

NOTE

If the actual pressure is higher than shown, the system is most likely overcharged, and charge should be removed. If the actual pressure are lower than shown, the system is most likely undercharged, and charge should be added.

Evaluation of the performance

Refrigerant

Outside ambient

TEMP.

The pressure of

the gas

side service valve.

R-22 35°C (95°F)

4~5kg/cm2G

(56.8~71.0

P.S.I.G.)

R-410A 35°C (95°F)

8.5~9.5kg/cm2G

(120~135 P.S.I.G.)

Bolt

Tubing connection

Inlet temperature

Discharge air

Discharge temperature

ENGLISH

Prepare remote controller

Test Running

- Check that all tubing and wiring are properly connected.

- Check that the gas and liquid side service valves are fully open.

Insert batteries before using the remote control. The battery type used is AAA (1.5 V).

1 Remove the battery cover by pulling it

according to the arrow direction.

2 Insert new batteries making sure that the

(+) and (–) of battery are installed correctly.

3 Reattach the cover by pushing it back in

position.

NOTE

• Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries.

• Remove the batteries from the remote controller if the system is not used for a long time.

This is performed when the unit is relocated or the refrigerant circuit is serviced. Pump Down means collecting all refrigerant into the outdoor unit without the loss of refrigerant.

- Connect a low-pressure gauge manifold hose to the charge port on the gas side service valve.

- Open the gas side service valve halfway and purge the air in the manifold hose using the refrigerant.

- Close the liquid side service valve(all the way).

- Turn on the unit's operating switch and start the cooling operation.

- When the low-pressure gauge reading becomes 1 to 0.5kg/cm

G(14.2 to 7.1 P.S.I.G.), fully close the gas side valve and then quickly turn off the unit. Now Pump Down procedure is completed, and all refrigerant is collected into the outdoor unit.

CAUTION

Be sure to perform Pump Down procedure in the cooling mode.

Pump Down Procedure

Pump down

ENGLISH

If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided. Install the outdoor unit on the opposite side of the sea wind direction.

In case, to install the outdoor unit on the seaside, To protect equipment from excessive wind.

Select an area with adequate drainage.

- Wind break should be able to withstand heavy sustained wind gusts.

- The height and width should be more than 150% of the outdoor unit.

- Keep more than 70 cm of space between outdoor unit and the windbreak for easy air flow.

Installation guide at the seaside

CAUTION

- Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.

- Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance.

- If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind. Otherwise it needs additional anticorrosion treatment on the heat exchanger.

Sea wind

Windbreak

Selecting the location(Outdoor Unit)

NOTE

- Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the Condenser by using water.

* Do not use salt water to clean equip-

ment, doing so could result in equipment failure.

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