Samsung AM060TXMKKC/EA Installation Guide

Air conditioner

Installation manual

AM***TXMKKC**

࡙ Thank you for purchasing this Samsung air conditioner.

࡙ Before operating this unit, please read this manual carefully and retain it for future reference.

Contents

Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Outdoor unit type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Installation combination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Deciding on where to install the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Installation and base ground work for an outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Refrigerant pipe installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Wiring work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Grounding work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Setting outdoor unit option switch and key function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Inspection and check operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Charging refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Pump Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Checking lists after finishing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Trial operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2

Correct Disposal of This Product

(Waste Electrical & Electronic Equipment)

(Applicable in countries with separate collection systems)

This marking on the product, accessories or literature indicates that the product and its electronic accessories (e.g. charger, headset, USB cable) should not be disposed of with other household waste at the end of their working life.

To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate these items from other types of waste and recycle them responsibly to promote the sustainable reuse of material resources.

Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take these items for environmentally safe recycling.

Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and its electronic accessories should not be mixed with other commercial wastes for disposal.

Safety precautions

Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment.

WARNING

t Always disconnect the air conditioner from the power supply before servicing it or accessing its internal components.

t Verify that installation and testing operations are performed by qualified personnel. t Verify that the air conditioner is not installed in an easily accessible area.

General information

f Carefully read the content of this manual before installing the air conditioner and store the manual in a safe place in order to be able to use it as reference after installation. f For maximum safety, installers should always carefully read the following warnings.

f Store the operation and installation manual in a safe location and remember to hand it over to the new owner if the air conditioner is sold or transferred.

f This manual explains how to install an indoor unit with a split system with two SAMSUNG units. The use of other types of units with different control systems may damage the units and invalidate the warranty. The manufacturer shall not be responsible for damages arising from the use of non compliant units.

f The manufacturer shall not be responsible for damage originating from unauthorized changes or the improper connection of electric and requirements set forth in the “Operating limits” table, included in the manual. Making such changes or improper connections may damage the units and invalidate the warranty.

f The air conditioner should be used only for the applications for which it has been designed: the indoor unit is not suitable to be installed in areas used for laundry.

f Do not use the units if damaged. If problems occur, switch the unit off and disconnect it from the power supply.

f In order to prevent electric shocks, fires or injuries, always stop the unit, disable the protection switch and contact

SAMSUNG’s technical support if the unit produces smoke, if the power cable is hot or damaged or if the unit is very noisy.

f Always remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These operations should be performed by qualified personnel only.

f The unit contains moving parts, which should always be kept out of the reach of children.

f Do not attempt to repair, move, alter or reinstall the unit. If performed by unauthorized personnel, these operations may cause electric shocks or fires.

f Do not place containers with liquids or other objects on the unit.

f All the materials used for the manufacture and packaging of the air conditioner are recyclable.

f The packing material and exhaust batteries of the remote controller(optional) must be disposed of in accordance with current laws.

f The air conditioner contains a refrigerant that has to be disposed of as special waste. At the end of its life cycle, the air conditioner must be disposed of in authorized centers or returned to the retailer so that it can be disposed of correctly and safely.

f This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

f When the product operates in heat mode during winter time, it operates protection mode when the outdoor temperature drops below 0 °C. Therefore, supply the power during winter time. If the power is not supplied, compressor protection mode will not operate and cause product malfunction.

3

4

Safety precautions

Installing the unit

IMPORTANT: When installing the unit, always remember to connect first the refrigerant tubes, then the electrical lines. Always disassemble the electric lines before the refrigerant tubes.

f Upon receipt, inspect the product to verify that it has not been damaged during transport. If the product appears damaged, DO NOT INSTALL it and immediately report the damage to the carrier or retailer (if the installer or the authorized technician has collected the material from the retailer.) f After completing the installation, always carry out a functional test and provide the instructions on how to operate the air conditioner to the user.

f Do not use the air conditioner in environments with hazardous substances or close to equipment that release free flames to avoid the occurrence of fires, explosions or injuries.

f Our units should be installed in compliance with the spaces shown in the installation manual, to ensure accessibility from both sides and allow repairs or maintenance operations to be carried out. The unit’s components should be accessible and easy to disassemble without endangering people and objects.

f For this reason, when provisions of the installation manual are not complied with, the cost required to access and repair the units (in SAFETY CONDITIONS, as set out in prevailing regulations) with harnesses, ladders, scaffolding or any other elevation system will NOT be considered part of the warranty and will be charged to the end customer.

Power supply line, fuse or circuit breaker

f Always make sure that the power supply is compliant with current safety standards. Always install the air conditioner in compliance with current local safety standards.

f Always verify that a suitable grounding connection is available.

f Verify that the voltage and frequency of the power supply comply with the specifications and that the installed power is sufficient to ensure the operation of any other domestic appliance connected to the same electric lines.

f Always verify that the cut-off and protection switches are suitably dimensioned.

f Verify that the air conditioner is connected to the power supply in accordance with the instructions provided in the wiring diagram included in the manual.

f Always verify that electric connections (cable entry, section of leads, protections…) are compliant with the electric specifications and with the instructions provided in the wiring scheme. Always verify that all connections comply with the standards applicable to the installation of air conditioners.

f Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage category.

Outdoor unit type

Shape

Model Cooling 1phase AM060TXMKKC

Installation combination f You must install the indoor unit that uses R-410A only.

f If sum capacity of the combined indoor units exceeds the capacity of an outdoor unit, the capacity of each indoor unit is reduced below the rated capacity. Therefore, keeping the combination of indoor units within the capacity of an outdoor unit is recommended.

Outdoor unit

AM060TXMKKC

Outdoor unit capacity (HP)

6

The maximum number of connectable indoor units

9

Total capacity of the connected indoor units (Bth/h)

26,600~68,900

Accessories

f You must keep the following accessories until the installation is finished.

f Hand over the installation manual to the customer after finishing the installation.

Manual (1) Drain plug (1) Rubber Leg (4) Drain cap (3)

5

6

Deciding on where to install the outdoor unit

Decide the installation location based on the following conditions and obtain the user’s approval. f Avoid a place that may disturb your neighbor. Noise may occur from the outdoor unit and the discharged air may affect your neighbors. (Be careful of the operation time in a residential area) f Install the outdoor unit on a hard and even area that can support its weight.

f Choose a flat place where rainwater does not settle or leak.

f Choose a place that will avoid strong winds.

f Choose a place that is well ventilated and allows enough space for repairs and service. (Discharge duct can be purchased privately.) f Choose a place where the connection of refrigerant pipe between an indoor unit and outdoor unit is within allowed distance.

f Make sure that the condensed water dripping from the drain hose runs out properly and safely.

f Choose a place where flammable gas does not leak.

f Choose a place where the unit could not come into contact with snow and rain.

f When installing the outdoor unit near sea shore, make sure it is not directly exposed to sea breeze.

- When installing the outdoor unit near sea shore, consult the qualified installer since the places above require additional measures for corrosion resistance. (You should remove salt and dust of a heat exchanger at least once a year.)

Installation Guide at the seashore

Make sure to follow below guides when installing at the seashore.

1. Do not install the product in a place where it is directly exposed to sea water and sea breeze.

- Make sure to install the product behind a structure (such as building) that can block see breeze.

- Even when it is inevitable to install the product in seashore, make sure that product is not directly exposed to sea breeze by installing a protection wall.

2. Throughly wash external panels to ensure saline particles are removed.

3. Because the residual water at the bottom of the outdoor unit significantly promotes corrosion, make sure that the slope does not disturb drainage.

- Keep the floor level so that rain does not accumulate.

- Be careful not to block the drain hole due to foreign substance

4. When product is installed in seashore, periodically clean it with water to remove attached salinity.

5. Make sure to install the product in a place that provides smooth water drainage. Especially, ensure that the base part has good drainage.

6. If the product is damaged during the installation or maintenance, make sure to repair it.

7. Check the condition of the product periodically.

- Check the installation site every 3 months and perform anti-corrosion treatment such as R-Pro supplied by SAMSUNG

(Code : MOK-220SA) or commercial water repellent grease and wax, etc., based on the product condition.

- When the product is to be shut down for a long period of time, such as off-peak hours, take appropriate measures like covering the product.

8. If the product installed within 500m of seashore, special anti-corrosion treatment is required.

❋

Please contact your local SAMSUNG representative for further details.

Outdoor unit

Sea breeze

Outdoor unit

Sea

Outdoor unit

Sea breeze

Outdoor unit

Protection wall

Sea breeze

Sea Sea

❋ Protection wall should be constructed with a solid material that can block the sea breeze and the height and width of the wall should be 1.5 times larger than the size of the outdoor unit. (You must secure more than 700mm of space between the protection wall and the outdoor unit for air circulation.)

❋

Corrosion resistance model (AM****XMKKC/EA) can be installed in front of a structure, without a protection wall.

However, it must be installed where the water containing salt does not contact the outdoor unit directly.

❋ As we cannot guarantee that the corrosion resistance model can prevent corrosion completely, we recommend that you install a protection wall, or install the outdoor unit behind a structure (such as a building) that can block sea breeze.

7

8

Deciding on where to install the outdoor unit

CAUTION t Install the indoor unit away from any interfering sources such as radio, computer, stereo equipment and also select a place where the electrical wiring work and an indoor unit installation are possible.

- Especially keep the unit at least 3 m away from the electrical equipment in an area where weak electromagnetic waves are generated and install the protection tube to protect the main power cable and communication cable.

- Make sure that there is no equipment that genetrates electromagnetic waves. If so, malfunction of the control system may occur due to the effect of the electromagnetic wave. (For example: The remote control sensor of the indoor unit may not have good reception in an area with fluorescent lamp style lighting.) t Make sure the outdoor unit is installed in a safe place where it will not be obstructed by snowfall. The frame should be installed in a place where the air inlet and heat exchanger of the unit are not buried in the snow. t A ventilation system may be required when the outdoor unit is installed in a closed space or room, even though

R-410A is not poisonous or flammable.

t Install railing around the outdoor unit to prevent it falling when the unit is installed on a high place such as the roof of the building.

t Avoid installing the units in places near an exhaust pipe and ventilating opening exposed to corrosive gas, oxides of sulfur, ammonia gas or sulfur gas herbicides. (These places need additional anticorrosive treatments.

Please contact manufacturer to avoid corroding copper pipes or soldered parts.) t There shouldn’t be any inflammable material such as wood and oil around the indoor unit. Otherwise, external fire may spread to the product.

t According to the condition of power supply, electric noise or unstable voltage can occur malfunction of electric parts or control system. (At the ship or places using power supply from electric generator… etc)

Indoor Unit Remote Control

Breaker

Breaker

1.5 m or mor

Stereo

1 m or mor e e

1.5 m or mor e

1.5 m or mor

3 m or mor e

Outdoor Unit f Make sure that the water dripping from the drain hose runs away correctly and safely.

f You should repaint or protect the damaged part so that the paint of the cabinet does not peel off and become rusty during installation. When the cabinet becomes rusty, the life of an outdoor will be reduced.

Installation location f Make a space for ventilation and service as seen in the picture.

f When multiple outdoor units are combined for installation, allow enough space for ventilation against a wall. If the ventilation space is not allowed, product malfunction may occur.

f The side with logo is the front side of the outdoor unit.

❋

Figure Description

Top view

Back side : Air intake

Side view

Front side : Air outlet

Back side : Air intake

Front side : Air outlet t , Air flow direction.

When installing 1 outdoor unit

❋

When the air outlet is opposite the wall

❋

When the air outlet is toward the wall (Unit : mm)

❋

When 3 sides of the outdoor unit are blocked by the wall

❋

The upper part of the outdoor unit is blocked and the air outlet is toward the wall

2000 or more

150 or more 600 or more

❋

The upper part of the outdoor unit is blocked and the air outlet is opposite the wall

❋

When the walls are blocking front and the rear of the outdoor unit

300 or more

9

Installation location

When installing more than 1 outdoor unit

❋

When 3 sides of the outdoor unit are blocked by the wall

300 or more 600 or more 600 or more 600 or more

❋

When the walls are blocking front and the rear of the outdoor units

600 or more 600 or more

❋

When front and rear side of the outdoor unit is toward the wall

1500 or more 600 or more 3000 or more 3000 or more 300 or more

WARNING t Should adopt bar type louver. Don’t use a type of rain resistance louver.

[Bar type louver] [Rain resistance louver]

10

t Louver specifications.

- Angle criteria : less than 20˚

- Opening ratio criteria : greater than 80%

(Unit : mm)

Moving the Outdoor Unit

f Select the moving route in advance.

f Be sure that moving route is safe from the weight of the outdoor unit.

f Do not slant the product more than 30˚ when carrying it. (Do not lay the product down sideways.) f The surface of the heat exchanger is sharp. Be careful not to get injured while moving and installing.

When moving with a crane or wire rope

f When moving an outdoor unit to a higher place such as the rooftop.

- Fasten the wire rope as seen in the picture.

- Move the outdoor unit with the product packed to prevent possible product damage during the transportation.

Wire rope / straps

Wood palette

When moving an outdoor unit with hands

f Moving the outdoor unit by lifting up and carrying for short travel distance.

- Two people should carry the outdoor unit by holding transportation handle.

- Be careful not to damage the heat exchanger of the rear side of the outdoor unit during transportation.

- Be careful not to get hurt by the sharp surface of the heat exchanger.

Installation and base ground work for an outdoor unit f Install the outdoor unit 150 mm higher than the base ground and install the drain hole to connect the pipe to the drainage.

f When the front fan of an outdoor unit is installed in a place where the average snowfall is more than 150 mm, the discharge duct should be attached to the outdoor unit.

f The concrete foundation should be 1.5 times larger than bottom of the outdoor unit.

f It is necessary to install wire mesh or steel bar when outdoor units are installed on a soft foundation.

f When installing multiple outdoor units at the same place, install the

H beam on the base ground. (When installing a number of outdoor units, you can install it on the base ground.)

Outdoor unit

Anchor bolt f Install the H beam(150 mm x 150 mm x t10 : basic specification) or vibration absorption frame to jut out from the base ground.

f After installing the H beam, apply corrosion protection.

Nut, Spring washer

20 mm

Square pad f Install a square pad(t=20 mm or more) to prevent vibration from the outdoor unit onto the base ground. Place the outdoor unit on the

H beam and fix it with the bolt, nut and washer. (Fix with M10 basic anchor bolt, nut and washer.)

75 mm or more

A

H beam

A+10~20 mm or more

11

Installation and base ground work for an outdoor unit

Base ground work

Install the outdoor unit horizontally on the ground

150 mm or more Drain hole 150 mm or more

< When installing on the ground > < When installing on the roof > f The outdoor unit should be supported within the range of measurement below for base ground work.

(Unit : mm)

Anchor bolt position

620

940 f When the outdoor unit needs to be supported, fix it with wire as shown in the picture.

- Slightly unwind the four screws on the cover top of the outdoor unit.

- Wind wires round the four screws and fasten the screws again.

- Fix the wires to the ground.

CAUTION t If the outdoor unit is not fixed securely, product may fall and it might cause loss of life or property damage.

t Do not install the outdoor unit on a wood palette.

t Fix the outdoor unit securely to the base ground with anchor bolts.

t The manufacturer is not responsible for the damage occurred by not adhering to the standard of the installation.

t To protect the outdoor unit from external condition such as rain, install it on the base ground and connect the drain pipe to the drainage.

12

Refrigerant pipe installation

Refrigerant pipe work

f The length of refrigerant pipe should be as short as possible and the height difference between an indoor unit and outdoor unit should be minimized.

f The piping length between the outdoor unit and the indoor unit may not exceed the allowable piping length, height difference, and the allowable length after branching is done.

f The pressure of the R-410A is high. Use only certified refrigerant pipe and follow the installation method.

f After pipe installation, charge the refrigerant according to the length of the pipe and R-410A refrigerant should be used.

f Use clean refrigerant pipe and there shouldn’t be any harmful ion, oxide, dust, iron content or moisture inside pipe.

f Use tools and accessories that fit on R-410A only.

WARNING t When installing, make sure there is no leakage. When collecting the refrigerant, stop the compressor first before removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor works with the service valve open, the pipe inhales the air and it makes the pressure inside of the refrigerant cycle abnormally high. It may cause explosion and injury.

Tool

Pipe cutter

Flaring tool

Refrigerant oil

Torque wrench

Pipe bender

Nitrogen gas

Brazing tool

Manifold gauge

Refrigerant charging hose

Vacuum pump

Work

Refrigerant pipe work

Air tightening test

Air tightening test ~ additional refrigerant charging

Vacuum drying

If compatible with conventional tool

Pipe cutting

Pipe flaring

Apply refrigerant oil on flared part

Connect flare nut with pipe

Compatible

Exclusive ether oil, ester oil, alkali benzene oil or synthetic oil

Pipe bending

Inhibition of oxidization

Compatible

Pipe brazing

Vacuuming, charging and checking operation

Need exclusive one to prevent mixture of R-22 refrigerant oil use and also the measurement is not available due to the high pressure.

Need exclusive one due to the refrigerant leakage or inflow of impurities.

Compatible (Use products which contain the check valve to prevent the oil from flowing backward into the outdoor unit.)

Use the one that can be vacuumed up to 100.7 kpa(5Torr.-755 mmHg).

Scale for refrigerant charging

Gas leak detector

Flare nut

Compatible

Gas leak test

Need exclusive one

( The one for R-134a can be used)

You must use the flare nut equipped with product.

Refrigerant leakage may occur when the conventional flare nut for R-22 is used.

13


Selecting refrigerant pipe

Temper grade and minimum thickness of the refrigerant pipe

Outer diameter [mm]

ø6.35

ø9.52

ø12.70

ø15.88

ø19.05

ø22.23

Minimum thickness [mm]

0.7

0.7

0.8

1.0

0.9

0.9

Temper grade

Annealed

Drawn

CAUTION t For pipes larger than Ø 19.05, drawn type (C1220T-1/2H or C1220T-H) type copper pipe must be used. If a annealed type (C1220T-O) copper pipe is used, pipe may break due to its low pressure resistance and cause personal injury.

Pipe installation between an outdoor unit and the first Y-joint

Outdoor unit capacity

[HP(Btu)]

4(37,500)

5(49,500)

6(54,600)

Liquid pipe [mm]

ø9.52

ø9.52

ø9.52

Gas pipe [mm]

ø15.88

ø15.88

ø19.05

One step upgraded pipe

[mm]

ø19.05

ø19.05

ø22.23

f Install the refrigerant pipe according to main pipe size of each outdoor unit capacity.

f When the pipe length between an outdoor unit and the farthest indoor unit including elbow exceeds 90 m, the gas pipe size should be upgraded one step among the main pipes from the outdoor unit to the first Y-joint. (The liquid pipe size will be maintained.) f If the capacity of the outdoor unit can decline due to the pipe length, upgrade the pipe size one step (gas pipe).

Main pipe size up

First Y-joint

Pipe installation between Y-joints

Indoor unit total capacity

[kW(Btu/h)]

X≤15.0(51,200)

15.0(51,200)<X≤23.2(79,200)

Liquid pipe (mm)

1JQFEJBNFUFS 0t%tNN

ø9.52

Gas pipe (mm)

ø15.88

ø19.05

14

Selecting Y-joint

f Select the first Y-joint according to main pipe size of each outdoor unit capacity.

f Select the other Y-joints according to the total indoor unit capacity under the selected Y-joint.

Selecting the first Y-joint

Outdoor unit capacity

[HP(Btu)]

4(37,500)

5(49,500)

6(54,600)

Y-joint model

MXJ-YA1509

✴

MXJ-YA1509

✴

MXJ-YA2512

✴

Other Y-joints

Total indoor unit capacity under the selected Y-joint

[kW(Btu/h)]

X≤15.0(51,200)

15.0<X≤40.6(138,500)

Y-joint model

MXJ-YA1509

✴

MXJ-YA2512

✴

Keeping refrigerant pipe

To prevent foreign materials or water from entering the pipe, it is important to keep the refrigerant pipe clean and dry and to seal it during installation.

Apply correct sealing method depending on the environment.

Exposure place

Outside exposure

Inside exposure

Exposure time

Longer than one month

Shorter than one month

-

Sealing type

Pipe pinch

Taping

Taping

Refrigerant pipe brazing and safety information

Important information for refrigerant pipe work

f Make sure that there is no moisture inside the pipe.

f Make sure that there are no foreign materials and impurities in the pipe.

f Make sure that there is no leak.

f Make sure to follow the instruction when brazing and keeping the pipe.

Nitrogen flushing brazing

f Use Nitrogen gas when brazing the pipes as shown in the picture.

f If you do not perform nitrogen flushing when brazing the pipes, oxide may form inside the pipe. It can cause the damage of the important parts such as compressor, valves.

f Adjust the flow rate of the Nitrogen flushing with a pressure regulator to maintain 0.05 m 3 /h or less.

Brazing part

ø6.35(1/4") copper pipe

Shut-off valve

Nitrogen gas

Pressure regulator

Taping

Flow meter

High pressure hose

15


Direction of the pipe when brazing

f Brazing the pipe should be done with the pipe headed downward or horizontally.

f Avoid brazing with the pipe headed upward.

CAUTION t The test liquid used to detect leakage after pipe brazing should be the designated one. The use of the test liquid containing sulfur element may cause pipe corrosion.

Cutting or Flaring the pipes

f Make sure that you prepared the required tools.

- Pipe cutter, reamer, flaring tool and pipe holder, etc.

f If you want to shorten the pipe, cut it using a pipe cutter ensuring that the cut edge remains at 90° with the side of the pipe.

- There are some examples of correctly and incorrectly cut edges below.

Pipe cutter

90° Oblique Rough Burr

Pipe f To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer.

f Carry out flaring work using flaring tool as shown below.

[Flaring tool]

A

Clutch type Wing nut type

Pipe diameter (mm)

ø6.35

ø9.52

ø12.70

ø15.88

Flaring bar

Pipe

Flare tool for R-410A clutch type

0~0.5

0~0.5

0~0.5

0~0.5

f Check that you flared the pipe correctly.

- There are some examples of incorrectly flared pipes below.

Yoke

Flaring bar

Pipe

Flare nut

A(mm)

Conventional flare tool

Clutch type

1.0~1.5

Wing nut type

1.5~2.0

1.0~1.5

1.0~1.5

1.0~1.5

1.5~2.0

1.5~2.0

1.5~2.0

Correct Inclined Damaged Surface Cracked Uneven Thickness

CAUTION t If foreign matters or BURRs are not removed after cutting pipe, refrigerant gas may leak.

t If foreign matters enter inside the pipe, the important interior parts of the unit may get damaged or product efficiency will be reduced. So, the direction of pipe should be downward during pipe cutting or flaring.

16

Tightening flare connection area

f Check that the flaring is properly made.

f Align the center of the piping and sufficiently tighten the flare nut with fingers. 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.

f Make sure to use ester oil to coat the flare connection section.

Pipe

Flare connection section Flare nut

Outer diameter (D, mm)

ø6.35

ø9.52

ø12.70

ø15.88

$POOFDUJPOUPSRVF LHGtDN

145~175

333~407

505~615

630~769

Flare dimension (A, mm)

8.70~9.10

12.80~13.20

16.20~16.60

19.30~19.70

Flare shape (mm)

R 0.4~0.8

D

CAUTION t Blowing Nitrogen gas should be done when brazing the pipe.

t Make sure to use the provided flare nut.

t Make sure that there are no cracks on the bent pipe.

t Do not fasten the flare nut with excessive strength.

t Use ester oil to coat the flare connection area to prevent refrigerant leak. R-410A is a high pressure refrigerant.

Therefore, there is a risk of refrigerant leakage if the flare connection is not coated with ester oil.

17


Pipe installation for an outdoor unit

Pipe direction

The refrigerant pipe can be pulled out from front, flank, rear, and bottom side, so install it depending on the installation site condition.

CAUTION

Caution for using knock-out hole t Make sure not to damage the exterior of the outdoor unit.

t Remove all burrs at the edge of the knock-out hole and apply the paints it to prevent rust.

t Use a cable tube and bushing to prevent a cable from being damaged when passing through a knock-out hole.

t After installing pipes, block the unused knock hole to prevent small animal from entering. However, the radiant heat hole (A) should be able to intake air.

CAUTION

Caution for connecting the pipe t When brazing the pipe, the unit may get damaged by a brazing fire and a flame. Use a flame proofing cloth to protect the unit from a brazing fire or flame. t The O-ring and Teflon packing inside service valve may get damaged by a brazing fire. Wrap the bottom side of the service valve with a wet cloth and braze it as shown above. Make sure not to interrupt the brazing with the drips from the wet cloth.

t The connecting pipes of liquid side and gas side should not contact each other nor should they contact to the product. Vibration may cause damage

High pressure (Liquid side)

Low pressure (Gas side) to the pipes.

Outdoor unit refrigerant pipe connection

Classification

Working process

Front, flank, rear side of pipe connection t First, remove the pipe cover from unit.

t Separate the knock-out hole to use. If the hole is open, small animals such as squirrels and rats may get into the unit through the hole and the unit may be damaged.

Bottom side of pipe connection t Separate the knock-out hole at the bottom side of the unit and install the pipe.

t After installing and insulating the pipe, close up the remaining gap. If the gap remains open, small animals such as rats and squirrels may get inside the unit and cause damage to the unit.

18

Refrigerant pipe installation examples

Using a Y-joint Using a Y-joint/EEV kit

Using a header joint Using a header joint/ Y-joint

Allowable length of the refrigerant pipe and the installation examples

Connection by Y-joint

Outdoor unit

Connection by Y-joint/EEV kit

Outdoor unit

19


Maximum allowable length of pipe

Maximum allowable height

Classification

Outdoor unit

~ Indoor units

Actual Length

Y-joint connection Y-joint / EEV kit connection

The distance between the outdoor unit and the farthest indoor unit ≤ 150 m

Ex) 8 indoor units a+b+c+d+e+f+g+p≤ 150 m

Ex) 6 indoor units a+b+c+d+j ≤ 150 m

Equivalent length

Main pipe length

The distance between an outdoor unit and the farthest indoor unit ≤ 175 m

The main pipe(a) from the outdoor unit to the first Y-joint should be less than

110 m.

Total length The sum of the total length of pipes should be less then 300 m.

Height H1: The difference of height between an outdoor unit and indoor unit < 50 m

Outdoor unit

~ Indoor units

Height H2: The difference of height between indoor units ≤ 15 m

Maximum allowable length after Y-joint

Actual Length

The distance between the first Y-joint and the farthest indoor unit ≤ 40 m

Ex) 8 indoor units b+c+d+e+f+g+p≤ 40 m

Allowable length between EEV kit and an indoor unit ≤ 20 m

Ex) h, l, j ≤ 20 m

EEV Kit ~

Indoor units

EEV Kit

Actual pipe lengh

2 m or less

20 m or less

Model name

MEV-E24SA

1 indoor

MEV-E32SA

MXD-E24K132A

MXD-E24K200A

MXD-E32K200A

MXD-E24K232A

2 indoor

MXD-E24K300A

MXD-E32K224A

MXD-E32K300A

3 indoor

Remarks

Apply to products without EEV (Wall mounted & ceiling)

❋

When the equivalent length between an outdoor unit and the farthest indoor unit exceeds 90 m, upgrade the low pressure pipe of the main pipe one step.

20

Connection by header joint

Outdoor unit

Header joint g

Indoor unit

Connection by Y-joint/header joint

Outdoor unit

Header joint f g

H1

Y-joint c H2

Indoor unit

Maximum allowable length of pipe

Maximum allowable height

Classification

Outdoor unit ~

Indoor units

Actual Length

Header joint connection Y-joint / header joint connection

The distance between an outdoor unit and the farthest indoor unit ≤ 150 m

Ex) 8 indoor units a+g≤ 150 m

Ex) 8 indoor units a+b+c ≤ 150 m

Equivalent length The distance between an outdoor unit and the farthest indoor unit ≤ 175 m

Main pipe length

The main pipe(a) from the outdoor unit to the first Y-joint should be less than

110 m.

Total length

Height

The sum of total length of pipes should be less then 300 m.

H1: The difference in height between an outdoor unit and indoor unit < 50 m Outdoor unit ~

Indoor units

Height H2: The difference in height between indoor units ≤ 15 m

Maximum allowable length after Y-joint

Actual Length

The distance between the header joint and the indoor unit ≤ 40 m

Ex) b, c ~ f, g ≤ 40 m

The distance between the first Y-joint and the farthest indoor unit ≤ 40 m

Ex) 8 indoor units b+c, d+g ≤ 40 m

❋

When the equivalent length between an outdoor unit and the farthest indoor unit exceeds 90 m, upgrade the low pressure pipe of the main pipe one step.

21



Refrigerant Y-joint installation

Install the Y-joint ‘horizontally’ or ‘vertically’.

f Install horizontally f Install vertically

NOTE t When using A~J type of Y-joint, connect the Y-joint to the pipe with the provided reducer.

t When using K~Z type of Y-joint, connect the Y-joint to the pipe by cutting the inlet of the Y-joint or provided reducer properly.

10~15 mm or more

CAUTION t Install the Y-joint within ±15° on the horizontal or on the vertical.

t Make sure that the pipe does not break at Y-joint and pipe connection.

t Keep a minimum straight line distance of 500 mm or more before connecting Y- joint.

Rear

Connect to other branch joint or indoor unit

Reducer

Pipe

Front

Gas/liquid side Y-joint

Connect to outdoor unit

Rear

Reducer

Pipe connection

Main pipe

❋

Install the Y-joint within ±15° on the horizontal or on the vertical.

Minimum straight line distance

(500 mm or more)

22

Correct use

(The insertion depth of connecting pipe)

Incorrect use

(The insertion depth of connecting pipe)

Basic specification

Connecting pipe Connecting pipe

When cutting connection part

Connecting pipe Connecting pipe

CAUTION t When inserting connecting pipe into the Y-joint, please comply with the installation regulation.

Refrigerant header joint installation

f Select the reducer fitted on the diameter of the pipe.

Liquid side

Pipe (Purchased privately)

Supplied

Reducer



Gas side

Reducer


To indoor unit

To outdoor unit

To indoor unit To outdoor unit

Reducer Reducer f Block the unused pipes end with caps if the number of connected indoor unit is fewer than header joint ports.

Gas side

Connection in order

Liquid side

Brazing part

Supplied

Connection in order

Block the port of header joint

Reducer

Block the port of header joint

23


CAUTION t When using A~J type of header joint, connect the header joint to the pipe with provided reducer. t When using K~Z type of header joint, connect the header joint to the pipe by cutting the provided reducer properly.

t Connect the header joint in order respecting the number of the indoor unit.

t Connect the indoor unit as the highest capacity comes first.

10~15 mm or more f Install the header joint horizontally.

- Install the header joint horizontally so that it is not facing down.

Reducer Header joint

Should be horizontal

Pipe

Liquid side


±15° or less

Gas side



±15° or less

±10° or less


±10° or less

24

Performing air tightening test

f Use tools for R-410A only to prevent the inflow of foreign substances and to resist the internal pressure.

f Use dry Nitrogen gas to do an airtight test as below.

Apply pressure to the liquid side pipe, gas side pipe with Nitrogen gas of 4.1 MPa (gauge pressure).

If you apply pressure more than 4.1 MPa (gauge pressure), the pipes may be damaged. Apply pressure using pressure regulator.

Continue to apply pressure for minimum

24 hours to check if the pressure drops.

After applying Nitrogen gas, check the change of pressure using pressure regulator.

If the pressure drops, check if there is a gas leak.

If the pressure is changed, apply soapy water to check the leak. Check the pressure of the gas again.

Maintain 1.0 MPa (gauge pressure) of the pressure before performing vacuum drying and check for further gas leak.

After checking first gas leak, maintain 1.0 MPa (gauge pressure) to check for further gas leaks.

Nitrogen gas

CAUTION t If the joint of high pressure side is disconnected and the nitrogen gas come into contact with human body, injury may occur. Tighten the joint connection firmly to prevent dangerous situation.

25


Vacuuming a pipe and an indoor unit

f Use the tools for R-410A only to prevent the inflow of foreign substances and resist against the internal pressure. f Use the vacuum pump with the check valve to prevent pump oil from flowing backward while the vacuum pump is stopped suddenly. f Use the vacuum pump that can be vacuumed up to 666.6 Pa(5 mmHg).

f Close the service valve of the liquid side pipe, gas side pipe completely when performing air tightening test or vacuum drying.

Connect the manifold gauge to the liquid pipe and gas pipe.

Vacuum the liquid pipe and gas pipe using the vacuum pump.

Make sure to install check valve to prevent pump oil from flowing into the pipe.

Vacuum those pipes for more than 2 hours and 30 minutes.

The time of vacuum drying may differ depending on the length of the pipe or outdoor temperature.

Perform vacuum drying for at least 2 hours and 30 minutes.

Close the valve after checking the vacuum gauge pressure has reached at -100.7 kPa

(gauge pressure).

Check the vacuum pressure using the vacuum gauge.

Check whether the pressure is maintained as -100.7 kPa (gauge pressure), 5 torr. for an hour.

Check the gas leak.

Pressure Increase

No

Yes

Vacuum destruction due to the moisture inside the pipe t Apply pressure with Nitrogen gas of

0.05 MPa (gauge pressure).

Perform vacuum drying again up to

-100.7 kPa (gauge pressure), 5 torr (for

2 hours or longer) and evaluate the vacuum

Charging additional refrigerant according to piping length

No

Pressure Increase

Yes

Vacuum pump

26

CAUTION t If the pressure rises in an hour, either water remains inside the pipe, or there will be a leak.

Selecting additional refrigerant charging

f Basic refrigerant

The basic amount of additional refrigerant charged at a factory

Model

AM060TXMKKC f Charging additional refrigerant

Refrigerant

R-410A

Factory charge(kg)

2.8

The amount of additional refrigerant charging =

The amount of refrigerant charging for pipe + the amount of refrigerant correction charging for an indoor unit.

1. The amount of additional refrigerant depending on the pipe size.

- Amount of additional refrigerant has to be calculated based on the sum of all liquid pipe length.

Size of liquid pipe (mm)

Additional amount (kg/m)

6,35

0,02

9,52

0,06

12,7

0,125

15,88

0,18

Additional refrigerant charging calculation = The sum of total length of Ø 9.52 liquid pipe(m) x 60 g + the sum of total length of Ø 6.35 liquid pipe(m) x 20 g

Ex) a(Ø 9.52)=40 m, b+c+d(Ø 9.52)=15 m, e+f+g(Ø 6.35)=15 m

The amount of additional refrigerant = 55 m x 60g + 15 m x 20 g = 3600 g

2. The amount of additional refrigerant for each indoor unit.

Product

(Unit : kg)

Capacity (kW)

1.5

1.7

2.2

2.8

3.2

3.6

4.5

5.6

6 7.1

8.2

9 9.3 11.2 12.8 14 16

1Way CST

(Fluid/Wind-Free)

1Way CST

(Fluid/Wind-Free)

2Way CST

4Way CST

(AM***NN4DE**)

360 CST

4Way CST

(600X600)

Duct S

Slim Duct

MSP Duct

HSP Duct

Home Duct

(AM***NN1PE**)

(AM***FN2DE**)

(AM***FN4DE**)

(AM***NN4DEH**)

(AM***KN4DE**)

(AM***FNNDE**)

(AM***NNNDE**)

(AM***HNMPK**)

(AM***FNLDE**)

(AM***KNLDEH**)

(AM****NMDE**)

(AM***FNHDE**)

(AM***KNLDE**)

(AM***MNLDE**)

Ceiling

(AM***JNCDK**)

Console

(AM***FN1DE**)

(AM***NN1DE**)

(AM***JN1DE**)

(AM***FNCDE**)

(AM****NJDE**)

0.25

0.25

0.15

0.15

0.29

0.29

0.17

0.17

0.17

0.24

0.24

0.13

0.13

0.13

0.16

0.27

0.25

0.17

0.32

0.31

0.45

0.45

0.32

0.47

0.45

0.45

0.45

0.29

0.37

0.37

0.37

0.45

0.26

0.35

0.35

0.24

0.28

0.28

0.26

0.26

0.39

0.27

0.27

0.27

0.22

0.45

0.28

0.33

0.39

0.45

0.45

0.31

0.42

0.32

0.57

0.69

0.69

0.69

0.69

0.69

0.38

0.38

0.38

0.42

0.62

0.62

0.54

0.68

0.68

0.91

0.68

0.68

0.68

0.56

0.95

27


Product

Capacity (kW)

1.5

1.7

2.2

2.8

3.2

3.6

4.5

5.6

6 7.1

8.2

9 9.3 11.2 12.8 14 16

Concealed Floor

Standing

Neo Forte

(AM***FNFDE**)

(AM***FNTDE**)

Neo Forte

(with EEV)

(AM***FNQDE**)

Boracay (AM***KNTDE**) 0.24

Boracay (with EEV) (AM***KNQDE**) 0.24

Max (with EEV) (AM***MNQDE**)

AR5000 (AM***JNADK**) 0.16

AR5000 (with EEV) (AM***JNVDK**) 0.22

Wind-Free RAC (AM***TN*D*H**) 0.23

0.24

0.34

0.24

0.24

0.16

0.22

0.23

0.24

0.34

0.32

0.32

0.19

0.25

0.32

0.22

0.24

0.34

0.32

0.32

0.25

0.34

0.32

0.51

0.49

0.49

0.25

0.34

0.48

0.32

0.36

0.51

0.49

0.49

0.52

0.71

0.48

0.32

0.36

0.51

0.49

0.49

0.52

0.71

0.48

0.52

0.71

0.64

0.49

Ex) When the indoor unit AM022FN1DEH and AM056FN4DEH are combinated

Additional refrigerant charging = 250g + 450g = 700g

3. The total amount of additional refrigerant charging = the amount of refrigerant charging for pipe + the amount of refrigerant for each indoor unit.

Ex) The amount of additional refrigerant charging = 3600g + 700g = 4300g

Connecting the drain hose to the outdoor unit

When using the air conditioner in the heating mode, ice may accumulate . During de-icing (defrost operation), the condensed water must be drained off safely. Consequently, you must install a drain hose on the outdoor unit, following the instructions below.

f Leave space of more than 50 mm between the bottom of the outdoor unit and the ground for installation of the drain hose, as shown in figure.

f Insert the drain plug into the hole on the underside of the outdoor unit.

f Connect the drain hose to the drain plug.

f Ensure that the drained water runs off correctly and safely.

13 mm

50 mm f Be sure to plug the rest of drain holes not connected with drain plugs using drain caps.

Drain cap

Drain plug

28

Insulating refrigerant pipe or Y-joint

f You must check if there is a gas leak before completing all the installation process. After you check that the gas does not leak, you must insulate the pipe and hose.

f Use EPDM insulation which meets the following condition.

Item

Density

Dimension change route by heat

Water absorption rate

Thermal conductivity

Moisture transpiration factor

Moisture transpiration grade

Formaldehyde dispersion

Oxygen rate

Unit g/cm 3

% g/cm 3 kcal/m·h·˚C ng/(m 2 ·s·Pa) g/(m 2 ·24h) mg/L

%

Standard

0.048~0.096

-5 or less

0.005 or less

0.032 or less

15 or less

15 or less

-

25 or more

Selecting the insulation of refrigerant pipe

f Insulate the gas pipe and liquid pipe by referring to the thickness of insulator for each pipe size.

f The standard condition is 30 °C, with humidity less than 85 %. In the conditions of high humidity, use one grade thicker.

Pipe

Liquid pipe

Gas pipe

Pipe size (mm)

Ø6.35~Ø9.52

Ø12.70~Ø50.80

Ø6.35

Ø9.52

Ø12.70

Ø15.88

Ø19.05

Ø22.23

Insulation(Cooling, Heating)

Standard

[30 °C, 85 %]

High humidity

[30 °C, 85 % or more]

EPDM, NBR

9t

13t

13t

I

I

19t

Remarks

Heat resisting temperature is more than 120 °C

19t 25t

29


Insulating refrigerant pipe

f You must insulate refrigerant pipe, Y-joint, header joint, and pipe connection area.

f If you insulate the pipes, the condensed water does not fall from the pipes.

f Check if there are any insulation cracks on the bent pipe.

Insulation

Clamp

Insulation

Indoor unit

Gas side pipe

Liquid side pipe

Indoor unit

Install the insulation to be overlapped

Fix securely without any gap.

Pipe insulation Pipe insulation after insulating EEV kit t The insulation of the gas and liquid pipes can be in contact with each other but they should not press excessively against each other.

t When contacting the gas side and liquid side pipe, use thicker insulation.

t When installing the gas side and liquid side pipes, leave

10 mm of space. t When contacting the gas side and liquid side pipe, use thicker insulation.

10 mm 10 mm 10 mm

Insulation

Insulation

Liquid pipe

Gas pipe

Gas pipe Liquid pipe

CAUTION t Install the insulation not to be get wider and use adhesive on the connection part of it to prevent moisture entering.

t Bind the refrigerant pipe with insulation tape if it is exposed to outside sunlight. (When binding the pipe with finishing tape, be careful not to reduce the thickness of the insulation.) t Install the refrigerant pipe respecting that the insulation does not get thinner on the bent part or hanger of pipe.

t When the thickness of insulation is reduced, supplement the reduced thickness with additional insulation.

Hanger

Additional insulation a a x 3

Insulation for refrigerant pipe

30

Insulating the header joint

f Fasten the header joint using a cable tie and cover the connected part.

f Insulate the header joint and the brazing part and wrap the connected part with an adhesive insulation tape to prevent dew formation.

Adhesive insulation tape Insulation after brazing a stopper

Insulation

Insulation for the header joint

Insulation for the refrigerant pipe f Fix the header joint with a hanger after insulating it.

Adhesive insulation tape

Insulating the Y-joint, liquid & gas side connecting pipe

f Attach the insulation provided with the Y-joint to the insulation purchased privately without a gap. Wrap the connected part with insulation (Purchased privately) of a thickness of at least 10 mm.

f Use insulation that should be able to handle an interior temperature of over 120 °C. Wrap the Y- joint with insulation of a thickness of at least 10 mm.

Pipe insulation

(Purchased privately) Provided insulation



Insulation tape (Purchased privately)

Pipe

150 mm

Y-joint

Thickness of the insulation (Purchased privately) should be at least thicker than 10 mm.

Pipe insulation (Purchased privately)

Pipe insulation (Purchased privately)

❋

Attach the adhesive insulation tape to the pipe as shown in the picture after insulating the pipe.

31

Wiring work f Wiring work should be performed in accordance with related laws such as ‘Technical specification on electric installation’,

‘Wiring regulations’ or ‘Installation manual’.

f Copper cable should be used for wiring work and all the wires or parts should be rated products.

f Wiring work should be performed by a company certified by an electric power company.

f Refer to the circuit diagram attached to the outdoor unit for detailed wiring work.

f Wiring work should be performed after disconnecting main circuit breaker and Y-joint switch.

f You must perform grounding work .

(Grounding resistance value should be less than 100 Ω.)

When ELCB is installed, protective grounding resistance value can be applied.

(When the ELCB is 100 mA, 0.1sec, protective grounding resistance value should be less than 250 Ω at a place where electric danger is high and should be less than 500 Ω at other places. ) f Electric wiring circuit diagram displays outline only.

f Do not connect a heater to an outdoor unit and do not install a duct which you arbitrarily remodeled.

- Failure to do so may result in reduced capacity of an air conditioner, electric shock, and fire.

f Do not connect the grounding wire to that of gas pipe, water pipe, lightning rod, or telephone.

- Gas pipe: If the gas leaks, explosion or ignition may occur.

- Water pipe: If rigid vinyl pipe is used, grounding effect will not work.

- Grounding wire and lightning rod of telephone: The electric potential of grounding wire may rise abnormally in the falling of a thunderbolt.

f The ELB for ground-fault protection only should be combined with MCCB or fuse equipped load breaker switch. In this case, you should use the one that has at least the same or more capcity as fuse capacity or the rated current of MCCB. f Use the wires that comply with regulated specification and firmly connect to the terminal board. Then tighten it with the screws provided so that the terminal board cannot be moved by external force. (The connecting cable and the grounding terminal should be locally procured). When wiring, the connection cable shouldn’t be too tight.

f Apply silicon at the end of CD pipe so that rainwater does not enter.

Conduit leading into an outdoor unit

Silicone

32

Overall System Configuration

Connection of the power cable (1 phase 2 wires)

Distribution board

ELCB

1 phase

2 wires

220-240V~

Or

MCCB +

ELB

Outdoor unit

1 phase

2 wires

220-240V~

Or

MCCB +

ELB

ELCB

220V

Earth

Communication cable

Wired remote controller

Connection of the power cable (1 phase 2 wires using EEV kit)

Distribution board Outdoor unit

ELCB

1 phase

2 wires

220-240V~

Or

MCCB +

ELB

1 phase

2 wires

220-240V~

Or

MCCB +

ELB

ELCB

Indoor unit

Indoor unit

Earth

Wired remote controller

Earth

Communication cable

EEV kit

CAUTION t You must install an earth leakage breaker.

- ELCB(Earth Leakage Circuit Breaker)

- MCCB(Molded Case Circuit Breaker)

- ELB(Earth Leakage fuse breaker) t Manufacturers are not responsible for fire caused by not installing ELCB or MCCB.

t Install the cabinet panel near the outdoor unit for service convenience and emergency operation switch off.

t You must install a circuit breaker that can prevent excess current and shut off the electric leakage on the outdoor unit.

33

Wiring work

Specification for circuit breaker and power supply cord

f Power supply cord is not supplied with air conditioner.

f Select the power supply cord in accordance with relevant local and national regulations.

f Wire size must comply with the applicable local and national code.

f The appliance shall be provided with a certified power supply cord and interconnection cord complying with the national regulations of the countries in which the appliance is to be sold.

f Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord. (Code designation IEC : 60245 IEC 57 / CENELEC : H05RN-F)

Model

AM060TXMKKC

Voltage

1phase, 220~240 V, 50/60 Hz

(Note1) Equipment complying with IEC 61000-3-12.

MCA

32 A

MFA

40 A

S sc

value (MVA)

(Note1)

Tightening power terminal

f Connect the cables to the terminal board using the compressed ring terminal.

f Use rated cables only.

f Connect the cables with driver and wrench that can apply the rated torque to the screws.

f Make sure that appropriate tightening torque is applied for cable connection. If the terminal is loose, arc heat may occur and cause fire and if the terminal is connected too firmly, terminal may get damaged.

M4

M5

12.0~18.0

20.0~30.0

5JHIUFOJOHUPSRVF LHGtDN

Communication : F1, F2

3 phase AC power: 1(L), 2(N), L, N, L1(R), L2(S), L3(T), N

1 phase AC power : 1(L), 2(N), L, N

34

Selecting compressed ring terminal

f Select a compressed ring terminal of a connecting power cable based on a nominal dimensions for cable.

f Cover a compressed ring terminal and a connector part of the power cable and then connect it.

Silver solder

E

F

L

Nominal dimensions for cable (mm 2 )

B

Nominal dimensions for screw (mm)

Standard dimension (mm)

Allowance (mm)


D

Allowance (mm) d1


Allowance (mm)

Min.

Min.

Max.

Standard dimension (mm) d2

Allowance (mm) t Min.

4/6

4

9.5

±0.2

5.6

+0.3

-0.2

3.4

8

15

4.3

+ 0.2

0

0.9

8.4

+0.4

0

10

8

16

8

15 16

±0.2

±0.2

7.1

+0.3

-0.2

4.5

±0.2

6

±0.2

±0.2

7.9

9.5

5 9 9

20 28.5

30

13

33

8.4

+0.4

0

8.4

+0.4

0

1.15

1.45

9

+0.3

-0.2

5.8

25

8 8 8

12 16.5

16

±0.3

35

±0.3

8

22

13.3

+0.5

-0.2

9.4

15

11.5

+0.5

-0.2

7.7

±0.2

11

13

±0.2

12.5

13

34

8.4

+0.4

0

1.7

38

8.4

+0.4

0

1.8

43

50

8

70

8

22 24

±0.3

±0.4

13.5

17.5

+0.5

-0.2

+0.5

-0.4

11.4

13.3

±0.3

±0.4

17.5

18.5

14

50

20

51

8.4

+0.4

0

1.8

8.4

+0.4

0

2.0

35

Wiring work

Installing grounding wire

f Grounding must be done by a qualified installer for your safety.

f Use the grounding wire by referring to the specification of the electric cable of the outdoor unit.

Grounding the power cable

f The standard of grounding may vary according to the rated voltage and installation place of the air conditioner.

f Ground the power cable according to the following.

Installation place

Power condition

High humidity Average humidity Low humidity

Voltage of lower than 150V

Voltage of higher than 150V

Perform the grounding work

3. Note 1)

Perform the grounding work 3 if possible for your safety. Note 2)

Must perform the grounding work 3. Note 1)

(In case of installing circuit breaker as well)

NOTE

1. Grounding work 3 t Grounding must be done by your installation specialist.

t Check if the grounding resistance is lower than 100 Ω. When installing a circuit breaker that can cut the electric circuit within 0.5 second in case of a short circuit, the allowable grounding resistance should be 30~500 Ω.

2. Grounding at dry place t The grounding resistance is should be lower than 100 Ω. (It should not be higher than 250 Ω)

- Use the rated grounding wire by referring to the specification of the electric cable of the outdoor unit.

Performing the grounding work

f Use the grounding wire by referring to the specification of the electric cable for the outdoor unit.

When using the terminal for grounding only When using grounding of the switch board

Switch Board Earth terminal

36

Grounding work

If the power distribution circuit does not have a grounding or the grounding does not comply with specifications, a ground rod must be installed.

The corresponding accessories are not supplied with the air conditioner.

1. Select a grounding rod that complies with the specifications given in the illustration.

Copper wire

Carbon rod

Compressed ring terminal (Terminal M4)

PVC-insulated green/yellow wire

2. Select a proper place for the grounding rod installation.

- In damp hard soil rather than loose sandy or gravel soil that has a higher grounding resistance.

- Away from underground structures or facilities, such as gas pipes, water pipes, telephone lines and underground cables.

- At least two meters away from lightening(as in a storm) conductor.

50 cm

30 cm

CAUTION t The grounding wire for the telephone line cannot be used to ground the air conditioner.

3. Install a green/yellow coloured grounding wire :

- Refer to the ‘Wiring work’ for the specification of grounding wire.

- When the grounding wire is too short, extend the grounding wire but bind the connection part with insulation tape.

(Do not bury the connection).

- Secure the grounding wire in position with staples.

CAUTION t When the grounding rod is installed in a place where many people pass by, you must fix it firmly.

4. Carefully check the installation, by measuring the grounding resistance with a ground resistance tester.

- If the resistance is above required level, drive the grounding rod deeper into the ground or increase the number of grounding rods.

5. Connect the grounding wire to the electrical component box inside of the outdoor unit.

37

Setting outdoor unit option switch and key function

Setting outdoor unit option switches : A TYPE

Terminal blocks (R1, R2) for connection with the Upper Controller

(DMS, Touch, On/Off Controller, etc.)

Do not connect the power and communication wires to these terminal blocks

38

f Setting outdoor install option

Step

Step1

Step2

Step3

Button Display Description

Quantity of indoor units

Note

Setting required

Press (K1+K2) for 2 seconds

Ready to set -

K2 x n times

K4 x n times

X

X

Tens digit (0 ~ 6)

Ones digit (0 ~ 9)

Ex) 03 : 3 units

10 : 10 units

* K4 : Press for 2 seconds - automatic detection of indoor units' quantity

If it is heat recovery model, go to step 4.

Otherwise, press K2 button for 2 seconds to save & exit.

(system will be reset)

Start (Step 1)

Quantity of indoor units

(Step 2 ~ 3)

Heat Recovery?

No

Yes

Quantity of HR Changer/

MCUs

(Step 4 ~ 5)

The setting of heat recovery system

(Step 6 ~7)

Save (Step 8)

39


Installing and setting the option with tact switch and explanation of the functions

Setting the option

1. Press and hold K2 to enter the option setting. (Only available when the operation is stopped)

If you enter the option setting, display will show the following. (If you have set the 'Emergency operation for compressor malfunction', 1 or 2 will be displayed on Seg 4.)

Seg 1 and Seg 2 will display the number for selected option.

-

Seg 3 and Seg 4 will display the number for set value of the selected option.

2. If you have entered option setting, you can shortly press the K1 switch to adjust the value of the Seg 1, Seg 2 and select the desired option.

Example)

॰

3. If you have selected desired option, you can shortly press the K2 switch to adjust the value of the Seg 3, Seg 4 and change the function for the selected option.

॰

4. After selecting the function for options, press and hold the K2 switch for 2 seconds. Edited value of the option will be saved when entire segments blinks and tracking mode begins.

CAUTION t Edited option will not be saved if you do not end the option setting as explained in above instruction.

❋

While you are setting the option, you may press and hold the K1 button to reset the value to previous setting.

❋

If you want to restore the setting to factory default, press and hold the K4 button while you are in the option setting mode.

If you press and hold the K4 button, setting will be restored to factory default but it doesn't mean that restored setting is saved. Press and hold the K2 button. When the segments shows that tracking mode is in progress, setting will be saved.

40

Optional item Input unit SEG1 SEG2 SEG3 SEG4

Unused option

Main 0 0 0 0

0 0

Cooling capacity correction

Main 0 1

0

0

0

0

1

2

3

4

0

0

0

0

0

1

5

6

Capacity correction for heating

Main 0 2

0

0

0

0

0

0

0

6

7

8

4

5

2

3

Current restriction rate

Oil collection interval

Main

Main

0

0

3

4

0

0

0

0

0

0

0

0

0

0

1

0

0

1

0

0

7

8

5

6

9

3

4

1

2

0

1

0

1

0

Temperature to trigger defrost operation

Main 0 5

0 1

Function of the option

Unused option

7-9

5-7 (Factory default)

9-11

10-12

11-13

12-14

13-15

3.0 (Factory default)

2.9

3.1

3.2

3.3

2.5

2.6

2.7

2.8

100% (Factory default)

95 %

90 %

85 %

80 %

75 %

70 %

65 %

60 %

55 %

50 %

No restriction

Factory default

Shorten the interval by 1/2

Factory default

Apply setting when the product is being installed in humid area such as near river or lake

Remarks

Unused option by this model

Targeted evaporation temperature [°C].

(When low temperature value is set, discharged air temperature of the indoor unit will decrease)

Targeted high pressure [MPa].

(When low pressure value is set, discharged air temperature of the indoor unit will decrease)

࢜ Unused by the cooling only models

When restriction option is set, cooling and heating performance may decrease.

The defrost option shortens the starting time of the defrost operation


41



Fan speed correction for outdoor unit

Main 0 6

0

0

0

1

Silent mode for night-time

Main 0 7

0

0

0

0

0

0

0

1

2

3

4

5

High-head condition setting

Long-pipng condition setting

(Setting is unnecessary if high-head condition is set)

Main

Main

0

0

8

9

0

0

0

0

0

0

0

0

6

0

1

2

3

0

1

2


Factory default

Increase fan speed

Disabled (Factory default)

LEVEL 1 / Auto

LEVEL 2 / Auto

LEVEL 3 / Auto

LEVEL 1/ External contact



LEVEL 1

Remarks

Increase the outdoor unit's fan speed to maximum value

Enables the silent mode for night-time in cooling mode.

(It operates automatically depending on the temperature.)

However, if the external contact interface module

(MIM-B14) is used, entering the silent mode is available with contact signal in cooling and heating mode.

Disabled (Factory default)

Level 1 of height difference type 1 (indoor unit is lower than outdoor unit)

Not applicable

Height difference type 2

(outdoor unit is lower than indoor unit)

Disabled (Factory Default)

When outdoor unit is located

40~80m above the indoor unit

When indoor unit is over 30m above the outdoor unit

When equivalent length of farthest indoor unit from the outdoor unit is over 100m

Not applicable

0 0 Disabled (Factory default)

Energy saving setting

Unused option

Unused option

Main

Main

Main

1

1

1

0

1

2

0

0

0

0

1

2

0

0

Energy saving mode

Rapid cooling

Unused option

Unused option

Energy saving mode triggers when the room temperature reaches desired temperature while operating in heating mode.

This function increases cooling speed.



42


Channel address

Main 1 3

A

0 - 15

U


Automatic setting

(factory default)

Manual setting for channel

0 – 15

Enabled

Remarks

Address for classifying the product from upper level controller(DMS,S-NET 3,etc.)

Snow accumulation prevention control

Unused option

Unused option

Unused option

Main

Main

Main

Main

1

1

1

1

4

5

6

7

0

0

0

0

0

0

1

0

0

0

Disabled

(Factory default)

Unused option

Unused option

Unused option

During snow accumulation , the fan may spin even when the unit is not in operation




Max. capacity restriction

Gas leak pump down

Main

Main

1

1

8

9

0

0

0

0

0

1

0

1

Enabled (Factory default) Restrict excessive capacity

Disabled increase when operating indoor units with small capacity

Disabled (Factory default) If the gas leak occurred it

Enabled should be entered in the pump down operation.

Unused option

Unused option

Main

Main

2

2

0

1

0

0

0

0

Unused option

Unused option



0 0 Disabled (Factory default)

Emergency operation for indoor unit communication error

Base Heater

Main

Main

2

2

2

3

0

0

0

0

1

2

0

1

Indoor high humidity condition

(operating for up to 12hours)

Indoor low humidity condition

(operating for up to 24hours)

Disabled

Enabled

When set, emergency operation is possible even if an indoor communication error occurs.

Set when Base Heater is installed.

Unused option

Main 2 4 0 0 Unused option Unused option for the model

Aux Heater’s interworking control for cycle heating

(cooling priority control)

Main 2 5

0

0

0

0

0

0

1

2

3

4

Not applied

Switching delay to heating

(30 mins.)


(15 mins.)


(10 mins.)


(5 mins.)

No switching delay

When using the Aux Heater, set the delay time for switching from cooling to heating.


0 5

Auto Change

Over

Main 2 6

0

0

0

1

Not applied

Applied

With Thermo off for all running indoor units, change the operation mode.


❋

There is a risk of water leakage during emergency operation for indoor unit communication error. Please be careful when using it.

43


Setting key operation and checking the view mode with tact switch

K1 Control

Press and hold 1 time

KEY operation

Auto trial operation

Display on segment

“K” ”K” “BLANK” “BLANK”

K1(Number of press)

1 time

2 times

3 times

4 times

5 times

KEY operation

Unused option

Unused option

Unused option

Vacuuming

End Key operation


—

—

—

“K” ”4” “BLANK” “1”

—


1 time

2 times

3 times

4 times

5 times

6 times

7 times

8 times

9 times

10 times

KEY operation

Refrigerant charging in Cooling mode

Trial operation in Cooling mode

Pump down in Cooling mode

Automatic setting of operation mode

(Cooling/Heating) for trial operation

Checking the amount of refrigerant

Discharge mode of DC link voltage

Unused option

Forced oil collection

Inverter compressor check

End Key operation


“K” ”5” “BLANK” “BLANK”




“K” “9” “X” “X”

(Display of last two digits may differ depending on the progress)

“K” ”A” “BLANK” “BLANK”

—

“K” ”C” “BLANK” “BLANK”

“K” ”D” “BLANK” “BLANK”

—

❋

Even when the outdoor unit power is off, it is dangerous when you come in contact with inverter PCB since it is charged with high DC voltage.

❋

When replacing/repairing the PCB, cut-off the power and wait until the DC voltage is discharged before replacing/ repairing them. (Wait for more than 15 minutes to allow it to discharge naturally.)

❋ When there were error, 'Discharge mode of DC link voltage' may not have been effective. Especially if error E464 has been occurred, power element might be damaged by fire and therefore, do not use the 'Discharge mode of DC link voltage'.

❋

During "Discharge mode of DC link voltage", voltage of INV will be displayed.

44


1 time

KEY operation

Initialize (Reset) setting


Same as initial state


1 time

2 times

3 times

4 times

12 times

13 times

14 times

15 times

16 times

17 times

18 times

5 times

6 times

7 times

8 times

9 times

10 times

11 times

19 times

20 times

KEY operation

Outdoor unit model

Order frequency of compressor

High pressure

Low pressure

Discharge temperature of compressor

IPM temperature of compressor

CT sensor value of compressor

Suction temperature

COND OUT temperature

Liquid pipe temperature

TOP temperature of compressor

Outdoor temperature

EVI inlet temperature

EVI outlet temperature

Main EEV step

EVI EEV step

Fan step

Current frequency of compressor

Master indoor unit address

(Master indoor unit can be selected by wired remote-controller)

MCU Bypass EEV Step

SEG 1

1

2

3

4

G

H

I

E

F

C

D

A

B

8

9

5

6

7

J

K

K4 (Press and hold for 2 seconds to enter the setting) ९ K4 press (Number of press)

1 time

2 times

3 times

4 times

5 times

Displayed content

Main version

Inverter version

EEP version

Assigned address of the units

Manually assigned address of the units

Page 1

MAIN

INV1

EEP

AUTO

MANU


SEG2, 3, 4

6HP (AM060*XM*) ९ 0, 0, 6

120 Hz ९ 1,2,0

1.52 MPa ९ 1, 5, 2

0.43 MPa ९ 0, 4, 3

188.6 °F(87 °C) ९ 0, 8, 7

188.6 °F(87 °C) ९ 0, 8, 7

2 A ९ 0, 2, 0

-43.6 °F(-42 °C) ९ -, 4, 2

-43.6 °F(-42 °C) ९ -, 4, 2

-43.6 °F(-42 °C) ९ -, 4, 2

188.6 °F(87 °C) ९ 0, 8, 7

-43.6 °F(-42 °C) ९ -, 4, 2

-43.6 °F(-42 °C) ९ -, 4, 2

-43.6 °F(-42 °C) ९ -, 4, 2

2000 steps ९ 2, 0, 0

300 steps ९ 3, 0, 0

13 steps ९ 0, 1, 3

120 Hz ९ 1,2,0

Master indoor unit not selected ९ BLANK , N , D

If indoor unit No.1 is selected as the master unit ९ 0 , 0 , 1

300 steps ९ 3, 0, 0


Page 2

Ver. (ex) 1412)

Ver. (ex) 1412)

Ver. (ex) 1412)

SEG 1,2

Indoor unit: “A” , “0”

HR Changer/MCU Unit

: “C” , “1”

SEG 1,2

Indoor unit: “A” , “0”

SEG 3,4

Address (ex) 07)

SEG 3,4

Address (ex) 15)

45

Inspection and check operation

CAUTION

Precautions before check operation t When the outdoor temperature is low, turn on the main power 3 hours before beginning the operation.

- If you start the operation immediately after turning on the main power, it may cause serious damage to the part within the product.

t Do not touch the refrigerant pipe during or right after the operation.

- Refrigerant pipe may be hot or cold during or right after the operation depending on the status of the refrigerant which flows through the refrigerant pipe, compressor and other parts of the refrigerant cycle. If you touch the refrigerant during or right after the operation, you may get burns or frostbite.

t Do not operate the product with its panel or protection nets off.

- There is risk of personal injury from the parts that rotates, heated or with the high voltage.

t Do not turn off the main power immediately after stopping the operation.

- Wait for at least 5 minutes before turning off the main power. If not, water leakage or other problems may occur.

t Connect all the indoor units and the power supply for the outdoor unit and run auto or manual address setting.

Run auto or manual address setting after changing the indoor unit PCB.

Inspection before check operation

1. Check the power cable and communication cable of the indoor and outdoor unit.

2. Supply power to the outdoor unit 3 hours before check operation to pre-heat the crank case heater.

3. Before supplying the power, use a voltmeter and phase tester to check the voltage and the phase.

- R,S,T terminal: check the 380 V ~ 415 V between wires (R-S, S-T, T-R) / 220V~240V between wires (L-N).

4. When the power is supplied, outdoor unit will execute tracking to check the indoor unit connection and other options.

5. Write down the installation report on the service history report paper attached on the front part of the control box.

CAUTION t Supply power to the outdoor unit 3 hours before check operation to pre-heat the crank case heater.

6. Guaranteed range of check operation

For correct judgment, you must perform check operation in below indoor/outdoor temperature condition.

30

20

50

40

10

0

-10

-20

5 10 15 20 25 30 35 40 45

Indoor temperature (°C)

Cooling

Heating

- Check operation selects and operates cooling/heating mode automatically.

- In the temperature range marked with slashed pattern, system protection control may trigger during operation.(It may be hard to judge the check operation correctly due to protection control operation.)

- When the temperature is outside of guaranteed range, accuracy of judgment on check operation may decrease near boarder line area.

46

Check operation

1. Use KEY MODE to run check operation.

- When the check operation is not completed, UP (unprepared) will appear on the LED after the communication check and restrict compressor from operating. (UP Mode will be cleared automatically when check operation is completed.)

- Check operation may proceed from 30 minutes maximum 50 minutes depending on the operation status.

- During check operation, noise can be generated due to valve inspection. (Check the product if abnormal noise occurs continuously)

2. When error occurs during check operation, check the error code and take appropriate measures.

- Refer to service manual if you need inspection or when other errors occur.

3. When check operation ends, use S-NET pro or S-CHECKER to issue a result report.

- Refer to service manual for further actions if you have any items with “inspection required” sign on the result report.

- After taking appropriate measure for the items with “inspection needed” sign, run the check operation again.

4. Check the following items by running (cooling/heating) trial operation.

- Check if cooling/heating operation performs normally.

- Individual indoor unit control: Check for air flow direction and fan speed.

- Check for abnormal operation noise from the indoor and outdoor unit.

- Check for proper draining from the indoor unit during cooling operation.

- Use S-NET pro to check the detail operation status.

5. Explain to the user how to use the air conditioner according to the user’s manual.

6. Hand over the installation manual to the customer so they can keep it with them.

47

Charging refrigerant

f The R-410A refrigerant is blended refrigerant. Add only liquid refrigerant. f Measure the quantity of the refrigerant according to the length of the liquid side pipe. Add quantity of the refrigerant using a scale.

Charging refrigerant

f Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant.

f If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side and liquid side service valve. Then, add remaining refrigerant by pressing the refrigerant adding button of the outdoor PCB.

Outdoor unit

Gas side Liquid side

R-410A (Inject liquid refrigerant)

Manifold gage

Scale

Service valve

Vacuum port

CAUTION t Open the gas side and liquid side service valve completely after charging the refrigerant. (If you operate the air conditioner with the service valve closed, the important parts may be damaged.) t Put on safety equipment when charging refrigerant.

t Do not charge the refrigerant when you adjust or control other product such as indoor units or EEV kits.

t When the ambient temperature is low in winter time, do not heat the refrigerant container to speed up the charging process. There is risk of explosion.

t Beware for possibility of refrigerant leakage when you connect the manifold gauge to the charging port for heating. t Close the valve of the refrigerant container immediately after charging the refrigerant. If not, there might be a change in entire amount of refrigerant.

48

Pump Down

WARNING t After installing the product, be sure to perform leak tests on the piping connections. After pumping down refrigerant to inspect or relocate the outdoor unit, be sure to stop the compressor and then remove the connected pipes.

-

Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected or incorrectly connected pipe. Failure to do so may cause air to flow into the compressor and too a high pressure to develop inside the refrigerant circuit, leading to an explosion or product malfunction.

The object of pump down

f You can reduce as much refrigerant leakage as possible during product movement or repair by collecting the refrigerant to the outdoor unit.

Caution for pump down procedure

f The amount of refrigerant that can be put into an outdoor unit is limited due to the slim shape of the outdoor unit.

f Before performing pump down, most of the refrigerant should be put into an empty container at first. The maximum amount of refrigerant that can be put into the outdoor unit is 5kg.

f When the amount of system refrigerant exceeds the amount of maximum receptive capacity, compressor trip or damage by fire might be caused.

Pump down procedure

f Before performing pump down, collect the refrigerant into the empty container.

f Turn off the manifold gage.

f Turn off the service valve of liquid pipe side.

f Press K2 button on the outdoor unit PCB three times. (‘ ’ is displayed on outdoor PCB LED.) f When the compressor starts operating, observe low pressure using manifold gage.

f When the low pressure goes below 0kg/cm²,g, turn off the service valve at gas side and finish the pump down operation.

(To finish pump down operation, press K2 button one more time or press K3 button one time to be initiated.)

CAUTION t When putting refrigerant into the refrigerant container, you must use the exclusive container that can be recharged. When remodeling normal refrigerant container illegally, explosion might occur.

49

Pump Down

How to put the refrigerant into the refrigerant container before pump down operation

❋

When the amount of refrigerant charged in the system exceeds maximum receptive capacity, collect the refrigerant into the refrigerant container at first and then perform the pump down.

f Prepare the exclusive refrigerant container that can be recharged, scale, and manifold gage that can be recharged.

f Check the current amount of refrigerant within the system.

f After connecting the refrigerant container to an outdoor unit, operate 50 % of all indoor units as cooling mode.

f Check the pressure of high pressure side for manifold gage after 10 minutes from cooling operation. When the pressure of high pressure side is above 30 kg/cm²,g decrease the number of operating indoor unit and make the pressure below

30 kg/cm²,g.

f After checking that the pressure of high pressure side went below 30 kg/cm²,g, open the manifold gage side valve(2) that is connected to the liquid pipe and refrigerant container valve. Then run the refrigerant from liquid pipe to refrigerant container. f Check whether the proper amount of refrigerant are put into the container using a scale, turn off the valve and remove the manifold gage.

f The amount of refrigerant that can be put into the refrigerant container should be about 50 % of all refrigerant of the whole system.

f Do not collect too much refrigerant in one refrigerant container.

Outdoor unit

R-410A Refrigerant container valve

Valve(1)

Gas side

Liquid side

Valve(2)

Manifold gage

Service valve

Scale

50

Checking lists after finishing installation

f Before supplying power, measure the power terminal (L, N) and outdoor unit grounding using insulation-resistance tester.

- The measured value should be above 30 MΩ.

CAUTION t You must not measure the communication terminal since the communication circuit may get damaged.

t Check the short circuit using a circuit tester.

Installation

Option

Outdoor unit

Indoor unit


Installing the drain pipe

Wiring work

Setting ADDRESS t Have you secured air discharge profile at the bottom of service cover?

t Have you checked the external surface and the inside of the outdoor unit?

t Is there any possibility of short circuit due to the heat of an outdoor unit?

t Is the place well-ventilated and ensures space for service?

t Is the outdoor unit fixed securely?

t Have you checked the external surface and the inside of the indoor unit?

t Is the place well-ventilated and has enough space been allowed for service?

t Have you checked if the center of the indoor unit is ensured and it is installed horizontally?

t Have you selected correct pipes?

t Are the liquid and gas valve open?

t Is the total number of connecting indoor units within the allowable range?

t Are the length and the height difference between the refrigerant pipes within the allowable range?

t Is the refrigerant Y-joint properly installed?

t Has the connection of liquid and gas pipes been correctly performed?

t Have you chosen correct insulation for pipes and have you insulated them correctly?

t Is the pipe or connection part properly insulated?

t Is the quantity of the additional refrigerant correctly weighed in? (You must record the amount of additional refrigerant charging on the service record paper placed outside the outdoor unit.) t Have you checked whether the drain pipes of the indoor unit and outdoor unit are connected together?

t Have you completed the drain test?

t Is the drain pipe properly insulated?

t Are the power cable and communication cable tightened firmly on the terminal board within the range of rated tightening torque?

t Have you performed the earthing work 3 to the outdoor unit?

t Is 2-core cable used for the communication cable?

t Is the length of the wire is in the limited range?

t Is the wiring route correct?

t Are the ADDRESSES of the indoor and outdoor units properly set?

t Are the ADDRESSES of the remote controller properly set?

(When using multiple remote controllers) t Have you checked whether the vibration-resistance frame is correctly installed if there is a possible vibration of the outdoor unit.

51

Trial operation

f Check the power supply between the outdoor unit and the cabinet panel.

- 1 phase power supply : L, N

- 3 phase power supply : R,S,T,N f Check the indoor unit.

- Check whether you have connected the power and communication cables correctly. (The communication cables between an indoor unit and outdoor unit are F1, F2.)

- Check the thermistor sensor, drain pump/hose, and display are connected correctly.

f Check with Key mode or S-Net Pro.

- At first, operate all the indoor units with Key mode and operate the indoor units individually with S-Net Pro.

- In the beginning of operation, check the compressor operation sound. If there is a boom sound, stop the trial operation.

f Check the operation status of indoor and outdoor unit.

- Check whether the cooling operation is done correctly.

- Check the individual indoor unit control, wind velocity, and wind flow direction.

- Check whether you can hear abnormal sound from indoor unit and outdoor unit.

- Check whether the drainage is done correctly in cooling.

- Check S-net Pro for detailed operation.

f Explain to the user the usage of the air conditioner by referring to the users manual.

CAUTION t Turn on the outdoor unit 3 hours before the test operation to preheat the compressor. t If the compressor is not preheated, ‘CH’ may appear on the outdoor unit PCB depending on the outdoor temperature.

Writing and keeping installation checking card

f Installation checking card is enclosed with the installation manual.

- Installer should fill out the front side of the card meticulously.

- Write basic information such as date of installation, name of an installer, contact information, supervision company etc.

- Write additional information such as the name of outdoor unit models, unusual, calculation of the additional amount of refrigerant etc.

- Write indoor unit related information such as indoor unit installation location, indoor unit model name etc.

f Keep the installation checking card in a designated place and do not lose it.

Installation checking card

52

Memo

53

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