Panasonic cs-ks18nku, cs-ks24nku installation

APPENDIX B

CS-KS18NKU + CU-KS18NKU

CS-KS24NKU + CU-KS24NKU

INSTALLATION INSTRCTIONS

+ CU-KS18NKUA

+ CU-KS24NKUA

(852-6-4190-576-00-0)

A-2

INSTALLATION INSTRUCTIONS Split System Air Conditioner

This air conditioner uses the refrigerant R410A.

NOTE

External diameter of service port R410A: 5/16"

Model Combinations

Combine indoor and outdoor units only as listed below.

Model No.

Indoor Unit Outdoor Unit

CS-KS18NKU CU-KS18NKU

CU-KS18NKUA

CS-KS24NKU CU-KS24NKU

CU-KS24NKUA

Power Source: 60 Hz, single-phase, 230/208 V

Contents

Page

IMPORTANT!

Please Read Before Starting .................................. 2

1. GENERAL .......................................................... 4

1-1. Tools Required for Installation (not supplied) 1-2. Accessories Supplied with Unit 1-3. Optional Copper Tubing Kit 1-4. Type of Copper Tube and Insulation Material 1-5. Additional Materials Required for Installation

2. INSTALLATION SITE SELECTION ................... 5

2-1. Indoor Unit 2-2. Outdoor Unit 2-3. Baffle Plate for the Outdoor Unit

3. HOW TO INSTALL THE INDOOR UNIT ........... 10

3-1. Remove the Rear Panel from the Unit 3-2. Make a Hole 3-3. Install the Rear Panel on the Wall 3-4. Remove the Grille to Install the Indoor Unit 3-5. Shape the Indoor Side Tubing 3-6. Wiring Instructions 3-7. Recommended Wire Length and Diameter 3-8. Wiring Instructions for Inter-unit Connections 3-9. Mounting 3-10. Drain Hose

4. HOW TO INSTALL THE OUTDOOR UNIT ....... 20

4-1. Wiring Instructions for the Outdoor Unit

5. REFRIGERANT TUBING .................................. 21

5-1. Use of the Flaring Method 5-2. Flaring Procedure with a Flare Tool 5-3. Caution before Connecting Tubes Tightly 5-4. Connecting Tubing between Indoor and

Outdoor Units 5-5. Insulation of Refrigerant Tubing 5-6. Taping the Tubes 5-7. Finishing the Installation

6. AIR PURGING................................................... 23

 Air Purging with a Vacuum Pump (for Test Run)  Basic Functions of the Service Valves  Pump Down  Service Valve Connections

7. REMOTE CONTROLLER INSTALLATION

POSITION ......................................................... 27

7-1. Mounting on a Wall

8. ADDRESS SWITCH .......................................... 28

8-1. Address Setting of the Remote Controller

85264190576000 2011

CV6233187204

IMPORTANT! Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

When Transporting

Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers.

When Installing…

For safe installation and trouble-free operation, you must:



Carefully read this instruction booklet before beginning.



Follow each installation or repair step exactly as shown.



Observe all local, state, and national electrical codes.



Pay close attention to all warning and caution notices given in this manual.

This symbol refers to a hazard or unsafe practice which can

WARNING

CAUTION

result in severe personal injury or death.

This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage.

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

Select an installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.

…In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support.

…In a Room

Properly insulate any tubing run inside a room to prevent “sweating” that can cause dripping and water damage to walls and floors.

Keep the fire alarm and the air

CAUTION

…In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

…In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

…In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

outlet at least 1.5 m away from the unit.

WARNING

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are completed or reconnected and checked.

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system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or

death.

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heating at connection points and a possible fire hazard.

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the unit must be grounded.

When Wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

When Connecting Refrigerant Tubing

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do not mix air except for specified refrigerant (R410A) in refrigeration cycle. It causes capacity down, and risk of explosion and injury due to high tension inside the refrige-

WARNING

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gas leaks during the installation. Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas.

rant cycle.

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cause fire.

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other than specified type. It may cause product damage, burst and injury etc.

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the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leakfree connection.

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or re-installation, and while repairing refrigeration parts. Handle liquid refrigerant carefully as it may cause frostbite.

When Servicing

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before opening the unit to check or repair electrical parts and wiring.

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parts.

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that no metal scraps or bits of wiring have been left inside the unit being serviced.

Others

CAUTION

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the refrigeration system. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas.

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gas is leaking. If escaped gas comes in contact with a stove, gas water heater, electric room heater or other heat source, it can produce dangerously toxic gas.

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fins of the outdoor unit. You may get injured.

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accidentally.

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You may be injured and the unit may be damaged.

NOTE

The illustrations are based on the typical appearance of a standard model. Consequently, the shape may differ from that of the air conditioner that you are installing.

1. General

This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning.

1-1. Tools Required for Installation (not supplied)

1. Standard screwdriver

2. Phillips head screwdriver

3. Knife or wire stripper

4. Tape measure

5. Carpenter’s level

1-2. Accessories Supplied with Unit

Table 1

Parts Figure Q’ty Parts Figure Q’ty

Remote controller

Remote control holder

Tapping screw

Rawl plug

Truss-head Phillips

/32 x5/8" (4x16 mm)

6. Sabre saw or key hole saw

7. Hacksaw

8. Core bits

9. Hammer

10. Drill

11. Tube cutter

12. Tube flaring tool

13. Torque wrench

14. Adjustable wrench

15. Reamer (for deburring)

Parts Figure Q’ty

Clamp

Cushion rubber*

AAA alkaline battery

Drain hose

adapter

1-3. Optional Copper Tubing Kit

Copper tubing for connecting the outdoor unit to the indoor unit is available in kits which contain the narrow and wide tubing, fittings and insulation. Consult your nearest sales outlet or air conditioning workshop.

1-4. Type of Copper Tube and Insulation Material

If you wish to purchase these materials separately from a local source, you will need:

1. Deoxidized annealed copper tube for refrigerant tubing as detailed in Table 2.

Cut each tube to the appropriate lengths 1' to 1'4" (30 cm to 40 cm) to dampen vibration between units.

Table 2

*Packed in the outdoor unit.

2. Foamed polyethylene insulation for the specified copper tubes as required to precise length of tubing. Wall thickness of the insulation should be not less than 5/16" (8 mm).

3. Use insulated copper wire for field wiring. Wire size varies with the total length of wiring. Refer to 3-6. Wiring Instructions for details.

CAUTION

Check local electrical codes and regulations before obtaining wire. Also, check any specified instructions or limitations.

Model

CS-KS18NKU 1/4" (6.35 mm) 0.0314" (0.8 mm) 1/2" (12.70 mm) 0.0314" (0.8 mm)

CS-KS24NKU 1/4" (6.35 mm) 0.0314" (0.8 mm) 5/8" (15.88 mm) 0.0393" (1.0 mm)

Outer Dia. Thickness Outer Dia. Thickness

Narrow Tube Wide Tube

1-5. Additional Materials Required for Installation

1. Refrigeration (armored) tape

2. Insulated staples or clamps for connecting wire (See local codes.)

3. Putty

4. Refrigeration lubricant

5. Clamps or saddles to secure refrigerant tubing

Indoor unit

Drain hose

2. Installation Site Selection

2-1. Indoor Unit

WARNING

AVOID:

 direct sunlight.

 nearby heat sources that may affect performance of the unit.

 areas where leakage of flammable gas may be expected.

 places where large amounts of oil mist exist.

DO:

 select an appropriate position from which every corner of

the room can be uniformly cooled. (High on a wall is best.)

 select a location that will hold the weight of the unit.

 select a location where tubing and drain hose have the

shortest run to the outside. (Fig. 1)

To prevent abnormal heat generation and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air conditioner in a way that may block air flow.

2" (5 cm)

min.

Elevation difference (H)

Outside drainage

INDOOR UNIT

Fig. 1

6" (15 cm) min.

Front View

Fig. 2

Tubing length (L)

Fig. 3a

2" (5 cm)

min.

OUTDOOR UNIT

 allow room for operation and maintenance as well as unre-

stricted air flow around the unit. (Fig. 2)

 install the unit within the maximum elevation difference (H)

above or below the outdoor unit and within a total tubing length (L) from the outdoor unit as detailed in Table 3 and Fig. 3a.

 install the indoor unit more than 3.3' (1 m) away from any

antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom. Electrical noise

For stable operation of the air conditioner, do not install wall-mounted type indoor units less than 5' (1.5 m) from floor level.

CAUTION

Indoor unit

Minimum height from floor level

5' (1.5 m)

from any of these sources may affect operation.

Floor level

Table 3

Max. Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of

Model Length at Shipment Length (L) Difference (H) Additional Refrigerant

(ft.) (ft.) (ft.) (oz./ft.)*

CS-KS18NKU 25 100 50 0.27

CS-KS24NKU 33

* If total tubing length becomes 25 to 100 ft. (Max.) or 33 to 132 or 100 ft. (Max.), charge additional refrigerant (R410A) by 0.27 oz./ft.

No additional charge of compressor oil is necessary. For more detailed charging information, refer to the Technical & Service Manual.

CU-KS24NKU CU-KS24NKUA

132 100

50 0.27

Fig. 3b

Wall

2-2. Outdoor Unit

)

AVOID:

 heat sources, exhaust fans, etc. (Fig. 4)  damp, humid or uneven locations.

Hot air

Exhaust fan

Heat source

DO:

 choose a place as cool as possible.  choose a place that is well ventilated.  allow enough room around the unit for air intake/

exhaust and possible maintenance. (Fig. 5a or 5b)

 provide a solid base (level concrete pad, concrete block,

4"  1'4" (10  40 cm) or 6"  1'4" (15  40 cm) beams or equal), a minimum of 4" (10 cm) or 6" (15 cm) above ground level to reduce humidity and protect the unit against possible water damage and decreased service life. (Fig. 5c or 5d)

 install cushion rubber under unit’s feet to reduce

vibration and noise. (Fig. 5e)

 use lug bolts or equal to bolt down unit, reducing

vibration and noise.

 install in a location where no antenna of a television

or radio exists within 10' (3 m).

(CU-KS18NKU) (CU-KS18NKUA)

Anchor bolts (4 pcs.)

Outdoor unit

(CU-KS18NKU) (CU-KS18NKUA)

Air intake Min. 4" (10 cm)

Min.

2" (5 cm)

Air discharge

Min. 1'4" (40 cm)

(CU-KS24NKU) (CU-KS24NKUA)

Fig. 4

Valve side Min. 10" (25 cm)

Fig. 5a

Obstacle above

Min.

7' (2 m)

Air discharge

Ground

Obstacle above

Min. 4" (10 cm

Air intake

Min.

7' (2 m)

Obstacle

Air intake

Concrete or equal

About 1'4" (40 cm)

(CU-KS24NKU) (CU-KS24NKUA)

Air intake

Concrete or equal

Fig. 5c

Min. 4" (10 cm)

About 4" (10 cm)

Anchor bolts (4 pcs.)

Min. 6" (15 cm)

Air intake Min. 6" (15 cm)

Min.

4" (10 cm)

Air discharge

Valve side Min. 10" (25 cm)

Min. 1'8" (50 cm)

Fig. 5b

Min.

7' (2 m)

Air discharge

Ground

Cushion rubber

Min. 6" (15 cm)

Air intake

Min.

7' (2 m)

Obstacle

About 1'4" (40 cm)

Fig. 5d

About 6" (15 cm)

Fig. 5e

2-3. Baffle Plate for the Outdoor Unit

(CU-KSxxNKUA models only)

Air intake baffle

NOTE

It is recommended to use baffle plates for models CU-KS18NKUA and CU-KS24NKUA. The baffle plates are not normally required for the other models.

When the outdoor unit is installed in a position exposed to strong wind (such as seasonal winds with low air temperature in winter), baffle plates must be installed on the outdoor unit. (Fig. 5f)

This unit is designed so that the fan of the outdoor unit runs at low speed when the air conditioner is operated at low outdoor air temperatures. When the outdoor unit is exposed to strong wind, the system pressure drops because of the freeze protector.

Install a pair of windbaffle plates at the front and back of the outdoor unit if it will be subject to strong wind during the winter. (Figs. 5f, 5g, 5h, 5i, and 5j)

Wind

Back

No air intake baffle required on this side.

Front

Wind

Air discharge baffle

Fig. 5f

(1) Recommended dimensions of the baffle plates

Air Intake Baffle

3- 1/4"

(3- 6.5 mm)

2- 15/64"

(2- 6 mm)

Air Discharge Baffle

4- 1/4"

(4- 6.5 mm)

Fig. 5g Fig. 5h

For Air Intake

Dimensions

Model

CU-KS18NKUA

CU-KS24NKUA

(inch)

(mm) 620 20 45 565 235 235 10 20 15 587 7.5 10 150 20 20

(inch)

(mm) 640 20 50 635 270 270 10 20 15 657 7.5 10 150 20 20

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24-13/32

25-3/16 25/32 1-31/32 25 10-5/8 10-5/8 25/64 25/32 19/32 25-7/8 19/64 25/64 5-29/32 25/32 25/32

25/32 1-25/32 22-1/4 9-1/4 9-1/4 25/64 25/32 19/32 23-1/8 19/64 25/64 5-29/32 25/32 25/32

For Air Discharge

Dimensions

Model

CU-KS18NKUA

CU-KS24NKUA

(inch)

(mm) 530 560 350 150 460 35 55 440 60 85 25

(inch)

(mm) 560 585 350 150 490 35 55 465 60 85 25

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20-7/8 22-1/16

22-1/16 23-1/32

13-25/32

5-29/32 18-1/8 1-3/8 2-5/32 17-5/16 2-3/8 3-11/32 31/32

13-25/32

5-29/32 19-9/32 1-3/8 2-5/32 18-5/16 2-3/8 3-11/32 31/32

Material to be used: Metal plate with corrosion protection treatment Plate thickness: 0.0394 to 0.0472" (1.0 to 1.2 mm)

(2) Parts required (field supply except for screws)

Air Intake Baffle

Item Q’ty Remarks

Baffle plate 1

Screw 5/32  15/32" (4  12 mm) tapping 2 Attached to outdoor unit

Bolt 15/64  19/32 – 25/32" (M6  15 – 20 mm) 3

Nut 15/64" (M6) 3

Washer 3

Spring washer 3

Air Discharge Baffle

Item Q’ty Remarks

Baffle plate 1

Bolt 15/64  13/32 – 19/32" (M6  10 – 15 mm) 4

Nut 15/64" (M6) 4

Washer 4

Spring washer 4

(3) Installation procedure

1. Air Intake Baffle

(1) Left side

1. Remove the top panel from the unit.

2. Remove the panel side L, and drill 3 holes of ø1/4 inch (6.5 mm) at the prescribed positions.

3. Install the windbaffle on the unit using field supply bolts and nuts.

4. Recommended bolts to be used are 15/64" (M6 ISO standard), and the recommended length of the bolts is between 19/32 – 25/32 inch (15 – 20 mm).

5. Use washers and spring washers to tightly fasten the windbaffle to the unit.

(2) Right side

1. Remove the top panel from the unit.

2. Use 2 preholes on the panel side R to install the baffle plate.

3. Remove the panel side R from the unit by removing the screws. These screws are used in step 4 below.

4. Put (sandwich) the windbaffle between the unit and the panel side R, then install the windbaffle on the unit using the above screws. Be careful not to damage the screw holes.

Panel top

Panel front

2. Air Discharge Baffle

1. Remove the panels front, top, side L and R from the unit and drill 4 holes of ø1/4 inch (6.5 mm) at the prescribed positions.

2. Install the windbaffle on the unit using field supply bolts and nuts.

3. Recommended bolts to be used are 15/64" (M6 ISO standard), and the recommended length of the bolts is between 13/32 – 19/32 inch (10 – 15 mm).

4. Use washers and spring washers to tightly fasten the windbaffle to the unit.

Panel side R

Panel top

Panel side R

Panel front

Panel side L

Fig. 5i

Fig. 5j

NOTE

 In order to prevent contact of the bolts and heat exchanger and other parts inside the unit, install the windbaffle using

bolts from inside the unit and fasten the bolts with nuts from outside the unit.

 When the windbaffle is installed on the unit, the unit has higher wind resistance. In order to prevent the unit from

falling over, anchor the legs of the unit using anchor bolts (or similar method).

(4) Precautions for installation

1. Be sure not to damage painted surfaces.

2. Finish the edges of the windbaffle to avoid cuts or injury.

3. Drilling of holes must be carefully done so that no damage is caused to external or internal parts of the unit. Particular care must be taken that drill chips do not drop into the unit.

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