Celestron VMH30SB-1 Installation manual

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Celestron VMH30SB-1 Installation manual | Manualzz

Wall Mounted Inverter Mini-Split System

VMC30SB-1 / VMH30SB-1

Room Air Conditioner Installation Manual

TABLE OF CONTENTS

Installation

Requirements

Required Parts

Safety Precautions............................3

Introduction ........................................6

Symbols used in this manual..........6

Features ...........................................6

Installation ..........................................7

Installation parts...............................7

Installation tools ...............................7

Installation map................................8

Selecting the best location .............9

Piping length and elevation...........10

Fixing installation plate ..................11

Drilling a hole in the wall ...............11

Flaring work ...................................12

Connecting the piping ..................13

Connecting the cables ..................19

Checking the drainage ..................22

Forming the piping.........................23

Air purging......................................24

Test running ...................................26

Installation guide at the seaside ...28

❏ Four type "A" screws & plastic anchors

❏ Connecting cable

❏ Installation guide map

❏ Pipes: Gas side

Liquid side

❏ Insulation materials

❏ Additional drain pipe

[Outer diameter......15.5mm(0.61in)]

❏ Two type "B" screws

Required Tools

❏ Level gauge

❏ Screw driver

❏ Electric drill

❏ Hole core drill [ø70mm(2.76in)]

❏ Horizontal level

❏ Flaring tool set

❏ Specified torque wrenches

1.8kg.m, 4.2kg.m, 5.5kg.m,

6.6kg.m

(different depending on model No.)

❏ Adjustable Wrench .......Half union

❏ A glass of water

❏ Screw driver

❏ Hexagonal wrench(4mm)

❏ Gas-leak detector

❏ Vacuum pump

❏ Gauge manifold

❏ Owner's manual

❏ Thermometer

❏ Remote control holder

2 Room Air Conditioner

Safety Precautions

Safety Precautions

To prevent the injury of the user or other people and property damage, the following instructions must be followed.

■ Be sure to read before installing the air conditioner.

■ Be sure to observe the cautions specified here as they include important items related to safety.

■ Incorrect operation due to ignoring instructions will cause harm or damage. The seriousness is classified by the following indications.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

■ The meanings of the symbols used in this manual are as shown below.

Be sure not to do.

Be sure to follow the instruction.

Installation

Always electrically ground the equipment.

• 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 cover to the indoor unit and the service panel to the outdoor unit.

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

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

• If the electrical 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.

• No installation may cause a fire and electrical shock.

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

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

Do not disassemble or repair the product randomly.

• It may cause injury or an accident.

• It will cause a fire or electrical shock.

Installation Manual 3

Safety Precautions

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

• Otherwise, it may result in personal injury.

Use caution when unpacking and installing.

• Sharp edges may cause injury.

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.

• Otherwise, 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.

4 Room Air Conditioner

Safety Precautions

Installation

Install the drain hose to ensure that drainage can properly occur.

• Otherwise, it may cause water leakage.

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

• Otherwise, it may disturb the neighbors.

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

• Otherwise, it may cause the failure of product.

Keep level parallel when installing the product.

• Otherwise, it may cause vibration or water leakage.

Operation

Avoid excessive cooling and ventilate the area being cooled occasionally.

• 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 inlet or outlet air flow areas.

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

Installation Manual 5

Introduction

Introduction

Symbols used in this Manual

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that may cause harm to the air conditioner.

NOTICE

This symbol indicates special notes.

Features

Air Inlet

Front Panel

Air Filter

Signal Receptor

Air Intake Vents Connecting

Wires

Air Outlet Vents

Drain Hose

Base Plate

6 Room Air Conditioner

Installation

Read carefully, and then follow step by step.

Installation Parts

Installation plate

Type "B" screw

Type "A" screw and plastic anchor

Remote control holder

Installation

Installation Tools

Figure Name

Screw driver

Electric drill

Measuring tape, Knife

Hole core drill

Adjustable Wrench

Torque wrench

Figure Name

Ohmmeter

Hexagonal wrench

Ammeter

Gas-leak detector

Thermometer,

Horizontal level

Flaring tool set

Installation Manual 7

Installation

Installation Map

NOTICE

Installation parts you should purchase.

Air Discharge

Operation Indication Lamps/

Signal Receptor

Forced Operation Button

Saddle

Installation plate

Sleeve

Bushing-Sleeve

Putty(Gum Type Sealer)

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

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.

Air Inlet Vents

Air Outlet Vents

Gas side piping (Optional Parts)

Liquid side piping (Optional Parts)

Additional drain pipe

Vinyl tape (Narrow)

Drain Hose

Connecting cable

(Optional Parts)

Base Plate

NOTE: refrigerant line wall thickness must be at least 0.8 mm(0.031 inch)

8 Room Air Conditioner

Installation

Select the best Location

Indoor unit

1. Do not have any heat or steam near the unit.

2. Select a place where there are no obstacles in front of the unit.

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

4. Do not install near a doorway.

5. Ensure that the interval between a wall and the left (or right) of the unit is more than

10cm(3.9in). The unit should be installed as high as possible on the wall, allowing a minimum of 20cm(7.9in) from ceiling.

6. Use a stud finder to locate studs to prevent unnecessary damage to the wall.

More than

10cm(3.9in)

More than

2.4m(7.9ft)

More than

20cm(7.9in)

More than

10cm(3.9in)

Outdoor unit

1. 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.

2. Ensure that the space around the back and sides is more than 30cm(11.8in). The front of the unit should have more than 70cm(27.6in) of space.

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

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

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

More than

30cm(11.8in)

More than

70cm(27.6in)

More than 60cm(23.6in)

More than

30cm(11.8in)

More than

60cm(23.6in)

Installation Manual 9

Installation

Piping Length and Elevation

Capacity

(Btu/h)

30k

GAS

Pipe Size

LIQUID

5/8" 1/4"

Standard Length m(ft)

Max.

Elevation B m(ft)

7.5(25) 15(49)

Max.

Length A m(ft)

Additional Refrigerant g/m(oz/ft)

30(98) 20(0.22)

Indoor unit

B

A

Outdoor unit Indoor unit

A

Outdoor unit

B

Outdoor unit

Oil trap

Indoor unit

A

B

If piping length is more than 5m(16.4ft)

Capacity is based on standard length and maximum allowance length is on the basis of reliability.

Oil trap should be installed every 5~7 meters(16.4~23.0ft).

10 Room Air Conditioner

Installation

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. If mounting the unit on a concrete wall, use anchor bolts.

• Mount the installation plate horizontally by aligning the centerline using a level.

Chassis

Hook

Installation Plate

Type "A" screw

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.

CHASSIS

(Grade)

SD(30k)

Distance mm(in)

A B C D

120(4 3 /

4

") 110(4 1 /

3

") 43(1 3 /

4

") 43(1 3 /

4

")

C

A

Left rear piping

3. Install after removing one of the indicated cutting phase according to the installation location of the indoor unit's piping.

Installation plate

D

B

Right rear piping

Cutting Phase

Drill a Hole in the Wall

• Drill the piping hole with a ø70mm(2.76in) hole core drill. Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side.

Indoor

WALL

Outdoor

Installation Manual 11

Installation

Flaring Work

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

Cutting Tubes

1. Use pipe cutting/flaring kit 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(59.1in) longer than the pipe length.

Copper pipe

90 ° Slanted Uneven Rough

Burrs removal

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

2. Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

Point down

Pipe

Reamer

Putting nut on

• Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal.

(not possible to put them on after flaring work) Copper tube

Flare nut

Flaring work

1. Firmly hold copper pipe in a Bar in the dimension shown in the table below.

2. Carry out flaring work with the flaring tool.

Outside diameter mm

Ø6.35

Ø9.52

Ø12.7

Ø15.88

Ø19.05

inch

1/4

3/8

1/2

5/8

3/4

A mm inch

1.1~1.3

0.043~0.051

1.5~1.7

0.059~0.067

1.6~1.8

0.063~0.071

1.6~1.8

0.063~0.071

1.9~2.1

0.075~0.083

Bar

Handle

Bar

Yoke

Cone

Copper pipe

Clamp handle

Red arrow mark

12 Room Air Conditioner

Check

1. Compare the flared work with the figure by.

2. If a flared section is defective, cut it off and do flaring work again.

Installation

Smooth all round

Inside is shiny without scratches

= Improper flaring =

Inclined Surface damaged

Cracked Uneven thickness

Even length all round

Connecting the Piping

Indoor

1. Prepare the indoor unit's piping and drain hose for installation through the wall.

2. Remove the plastic tubing retainer(see the illustration below) and pull the tubing and drain hose away from chassis.

3. Replace only the plastic tubing holder 1, not the holder 2 in the original position.

For right rear piping

1. Route the indoor tubing and the drain hose in the direction of rear right.

2. Insert the connecting cable into the indoor unit from the outdoor unit through the piping hole.

• Do not connect the cable to the indoor unit.

• Make a small loop with the cable for easy connection later.

3. Tape the tubing, drain hose, and the connecting cable. Be sure that the drain hose is located at the lowest side of the bundle.

Locating at the upper side can cause drain pan to overflow inside the unit.

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

*Foamed polyethylene or equivalent is recommended.

Drain hose

Tape

Connecting pipe

Drain hose

Connecting cable

Installation Manual 13

Installation

4. Indoor unit installation

Hook the indoor unit onto the upper portion of the installation plate.(Engage the two hooks of the rear 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.

Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(clicking sound).

Connecting the piping to the indoor unit and drain hose to drain pipe.

1. Align the center of the pipes and sufficiently tighten the flare nut by hand.

2. Tighten the flare nut with a wrench.

Outside diameter mm

Ø6.35

Ø9.52

Ø12.7

Ø15.88

inch

1/4

3/8

1/2

5/8

Torque kg.m

1.8~2.5

lb.ft

13~18

3.4~4.2

24.6~30.4

5.5~6.6

39.8~47.7

6.3~8.2

45.6~59.3

3. When extending the drain hose at the indoor unit, install the drain pipe.

Connecting cable

Drain hose

Indoor unit tubing Flare nut Pipes

Open-end wrench (fixed)

Flare nut

Connection pipe Wrench

Indoor unit tubing

Drain pipe

Wrap the insulation material around the connecting portion.

1. Overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there is no gap.

2. 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 for enough to cover where they fit into the rear piping housing section.

Indoor unit drain hose

Adhesive

Vinyl tape(narrow)

Plastic bands

Insulation material

Connection pipe Indoor unit pipe

Vinyl tape (wide) Wrap with vinyl tape

Connecting cable

Pipe

Vinyl tape(narrow)

Wrap with vinyl tape

Pipe

Vinyl tape(wide)

Drain hose

14 Room Air Conditioner

For left rear piping

1. Route the indoor tubing and the drain hose to the required piping hole position.

2. Insert the piping, drain hose, and the connecting cable into the piping hole.

3. Insert the connecting cable into the indoor unit.

• Don't connect the cable to the indoor unit.

• Make a small loop with the cable for easy connection later.

4. Tape the drain hose and the connecting cables.

Installation

Connecting cable

Drain pipe

5. Indoor unit installation

• Hang the indoor unit from the hooks at the top of the installation plate.

• Insert the spacer etc. between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall.

Indoor unit

Spacer

Installation plate

8cm(3.15in)

Connecting the piping to the indoor unit and the drain hose to drain pipe.

1. Align the center of the pipes and sufficiently tighten the flare nut by hand.

2. Tighten the flare nut with a wrench.

Outside diameter mm

Ø6.35

Ø9.52

Ø12.7

Ø15.88

inch

1/4

3/8

1/2

5/8

Torque kg.m

1.8~2.5

lb.ft

13~18

3.4~4.2

24.6~30.4

5.5~6.6

39.8~47.7

6.3~8.2

45.6~59.3

3. When extending the drain hose at the indoor unit, install the drain pipe.

Indoor unit tubing Flare nut Pipes

Wrench

Indoor unit tubing

Drain hose

Open-end wrench (fixed)

Flare nut

Connection pipe

Indoor unit drain hose

Adhesive

Vinyl tape (narrow)

Installation Manual 15

Installation

Wrap the insulation material around the connecting portion.

1. Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there is no gap.

2. 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 cloth tape over the range within which they fit into the rear piping housing section.

Plastic bands

Insulation material

Connection pipe

Vinyl tape

(wide)

Connecting cable

Indoor unit piping

Wrap with vinyl tape

Pipe

Vinyl tape(narrow)

Drain hose

Pipe

Vinyl tape(narrow)

Wrap with vinyl tape(wide)

Reroute the pipings and the drain hose across the back of the chassis.

Piping for passage through piping hole

Indoor unit installation

1. Remove the spacer.

2. Ensure that the hooks are properly seated on the installation plate by moving it left and right.

3. Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(clicking sound).

Connecting cable

Drain hose

16 Room Air Conditioner

Installation Information. For left piping. Follow the instruction below.

Best Practice

• Press on the upper side of clamp and unfold the tubing to downward slowly.

Installation

Worst Practice

• Following bending type from right to left may cause damage to the tubing.

Installation Manual 17

Installation

Outdoor

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

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.

Outside diameter mm

Ø6.35

Ø9.52

Ø12.7

Ø15.88

Ø19.05

inch

1/4

3/8

1/2

5/8

3/4

Torque kg.m

lb.ft

1.8~2.5

13~18

3.4~4.2

24.6~30.4

5.5~6.6

39.8~47.7

6.3~8.2

45.6~59.3

9.9~12.1 71.6~87.5

Outdoor unit

Liquid side piping

(Smaller diameter)

Gas side piping

(Bigger diameter)

Torque wrench

18 Room Air Conditioner

Installation

Connecting the Cables

Indoor

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.)

The ground wire should be longer than the common wires.

The circuit diagram is not subject to change without notice.

When installing, refer to the electrical diagram behind the front panel of Indoor Unit.

The wiring for the outdoor unit can be found on the inside of the Outdoor Unit control cover.

• Be sure to connect wires according to the wiring diagram.

• Connect the wires firmly, so that they can not be pulled out easily.

• Connect the wires according to color codes by referring to the wiring diagram.

Provide a circuit breaker between power source and the outdoor unit as shown below.

Circuit

Braker

(A)

Grade(Btu/h)

30k

30

Main power source

Air

Conditioner

Circuit Breaker

Use a circuit breaker or time delay fuse.

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

AWG_"A"

10±

3mm

Power supply cable (230/208V)

GN/YL

Power

"A"

Grade(Btu/h)

30k

14

20mm

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

AWG_"B"

10±

3mm

Connecting cable (230/208V)

GN/YL

Power

"B"

Grade(Btu/h)

30k

18

20mm

When using the separate wire as the power cord, please fix the separate wire into the control box panel by using tie wrap as the fixture.

Installation Manual 19

Installation

Outdoor

1. Remove the cover control from the unit by loosening the screw.

Connect the wires to the terminals on the control board individually as the following.

2. Secure the cable onto the control board with the holder (clamper).

3. Refix the cover control to the original position with the screw.

Wiring Diagram

Outdoor unit

Terminal block

Over 5mm

(0.2")

Power supply cord

Cover control

BR BL BR BL RD

Conduit panel

Connecting cable

NOTICE

1. Separately wire power supply cord and connecting cable.

2. Use heat-proof electrical wiring capable of withstanding temperature up to 75°C(167°F).

3. Use outdoor and waterproof connection cable rated more than 300V for the connection between indoor and outdoor unit. (For example, Type SJO-WA)

• Be sure to comply with local and national codes while running the wire from the indoor unit to the outdoor unit(size of wire and wiring method, etc).

• Every wire must be connected firmly.

• No wire should be allowed to touch refrigerant tubing, the compressor or any moving parts.

20 Room Air Conditioner

Installation

How to connect wiring to the terminals

For strand wiring

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

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

(3) Using a round terminal fastener or pliers, securely clamp each stripped wire end with a round terminal.

(4) Position the round terminal wire, and replace and tighten the terminal screw using a screwdriver.

Power supply cable

Strand wire

Loosening the terminal block screw

Connecting cable

Fastening the wire tightly

Round terminal

Connecting cable

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 fastens the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected to during the course of transportation. Check them and make sure that they are all 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. Ensure 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 specified in the power source specification. (Particularly note the relation between cable length and thickness.

7. Always install a ground 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(0.12") in each active(phase) conductors.

Installation Manual 21

Installation

Checking the Drainage

To check 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.

Connecting area drain hose

Leakage checking

Drain pan

Leakage checking

Drain hose

Drain piping

1. The drain hose should point downward for easy drain flow.

2. Do not make drain piping like the following.

Water leakage

Do not raise

Accumulated drain water

Air

Water leakage

Kinking

Water leakage

Tip of drain hose dipped in water

Ditch

Downward slope

Less than

50mm gap

22 Room Air Conditioner

Installation

Forming 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.

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 by saddle or equivalent.

Seal small openings around pipings with a gum type sealant.

Drain hose

Pipings

Connecting cable

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

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

Trap

Trap

Installation Manual 23

Installation

Air Purging

Air purging

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

1. Pressure in the system rises.

2. Operating current rises.

3. Cooling(or heating) efficiency drops.

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

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

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

Air purging with vacuum pump

1. Preparation

• Check that each tube(both liquid and gas side) 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.

2. Leak test

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

Be sure to use a manifold valve for air purging. If it is not available, use a stop valve for this purpose.

The "Hi" knob of the manifold valve must always be kept close.

• Pressurize the system to no more than 150 P.S.I.G. with dry nitrogen gas and close the cylinder valve when the gauge reading reached 150 P.S.I.G. Next, test for leaks with liquid soap.

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.

1. 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.

Indoor unit

Outdoor unit

Charge hose

Manifold valve

Lo Hi

2. 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.

Nitrogen gas cylinder(in vertical standing position)

24 Room Air Conditioner

Installation

Soap water method

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

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

3. To open the 2-way valve turn the valve stem counterclockwise approximately 90°, wait for about

2~3 sec, and close it.

4. 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.

5. If bubbles come out, the pipes have leakages.

Evacuation

1. Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit.

Confirm the "Lo" and "Hi" knobs of the manifold valve 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.

Required time for evacuation when 30 gal/h vacuum pump is used

If tubing length is less than 10m (33 ft)

10 min. or more

If tubing length is longer than 10m (33 ft)

15 min. or more

2. When the desired vacuum is reached, close the

"Lo" and "Hi" knobs of the manifold valve and stop the vacuum pump.

Finishing the job

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

2. Turn the valve stem of gas side valve counterclockwise to fully open the valve.

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

4. 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.

5. Replace the valve caps at both gas and liquid side service valves and fasten them tight.

This completes air purging with a vacuum pump.

The air conditioner is now ready to test run.

2-way valve

(Open)

3-way valve

(Close)

Open

Manifold valve

Lo Hi

Liquid side

Hexagonal wrench

Outdoor unit

Vacuum pump

Close

Gas side

Indoor unit

Cap

Installation Manual 25

Installation

Test Running

1. Check that all tubing and wiring are properly connected.

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

Prepare remote controller

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 into position.

NOTICE

• 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.

Settlement of outdoor unit

1. Anchor the outdoor unit with a bolt and nut[ø10mm(0.39in)] tightly and horizontally on a concrete or rigid mount.

2. 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.

3. If the vibration of the unit is transmitted to the hose, secure the unit with an anti-vibration rubber.

Evaluation of the performance

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

1. Measure the pressure of the gas side service valve.

2. Measure the temperature of the intake and discharge of air.

3. Ensure the difference between the intake temperature and the discharge is more than

8°C

4. For reference; the gas side pressure of optimum condition is as below.(Cooling)

The air conditioner is now ready for use.

Bolt

Discharge air

Tubing connection

Intake temperature

Discharge temperature

Refrigerant

Outside ambient

TEMP.

The pressure of the gas side service valve.

R410A 35°C (95°F) 8.5~9.5kg/cm 2 G(120~135 P.S.I.G.)

26 Room Air Conditioner

Installation

NOTICE

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

PUMP DOWN

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.

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

Pump Down Procedure

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

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

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

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

5. When the low-pressure gauge reading becomes 1 to 0.5kg/cm 2 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.

Installation Manual 27

Installation

Installation guide at the seaside

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

2. 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.

3. 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.

Selecting the location(Outdoor Unit)

1) 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.

Sea wind Sea wind

2) In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind.

Windbreak

Sea wind

• It should be strong enough (like concrete) to prevent the sea wind from the sea.

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

• It should be keep more than 70cm(27.6 in) of space between outdoor unit and the windbreak for easy air flow.

3) Select a well-drained place.

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

28 Room Air Conditioner

Jan. 2008

Specifications and performance data subject to change without notice.

HEAT CONTROLLER, INC.

1900 WELLWORTH AVENUE • JACKSON, MICHIGAN 49203

THE QUALITY LEADER IN CONDITIONING AIR

P/No.: MFL39817306

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