Panasonic s-18mk2u6, s-24mk2u6 installation

INSTALLATION INSTRUCTIONS

Air Conditioner

This air conditioner uses the refrigerant R410A.

Model No.

Indoor Units

Type Indoor Unit Type

K2 Wall Mounted S-18MK2U6 S-24MK2U6

Nominal Capacity

18 24

Read through the Installation Instructions before you proceed with the installation. In particular, you will need to read under the “IMPORTANT!” section at the top of the page.

85464369878010

CV6233320519

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 efﬁ ciently.

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.

● This air conditioner shall be installed in accordance with

National Wiring Regulations.

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

This symbol refers to a hazard or

WARNING

CAUTION

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 certiﬁ ed 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

WARNING

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

• Do not supply power to the unit until all wiring and tubing

are completed or reconnected and checked.

• Highly dangerous electrical voltages are used in this system.

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

• Ground the unit following local electrical codes.

• Connect all wiring tightly. Loose wiring may cause over-

heating at connection points and a possible ﬁ re hazard.

• To prevent possible hazards from insulation failure,

the unit must be grounded.

• This equipment is strongly recommended to be installed

with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD). Otherwise, it may cause electrical shock and ﬁ re in case of equipment breakdown or

insulation breakdown.

unsafe practice which can 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.

When Wiring

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 ﬁ ns on the air conditioner can cut your ﬁ ngers.

When Installing…

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 Room

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

Keep the ﬁ re 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 bafﬂ e.

…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 5 feet (1.5 m) away from the unit.

When Connecting Refrigerant Tubing

• Pay particular attention to refrigerant leakages.

• Ventilate the room immediately, in the event that is refrigerant gas leaks during the installation. Be careful not to allow contact of the refrigerant gas with a ﬂ ame as this will cause the generation of toxic gas.

• Keep all tubing runs as short as possible.

• Apply refrigerant lubricant to the matching surfaces of the ﬂ are and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection.

• Check carefully for leaks before starting the test run.

WARNING

• When performing piping work, do not mix air except for speciﬁ ed refrigerant (R410A) in refrigeration cycle. It causes capacity down, and risk of explosion and injury due to high tension

inside the refrigerant cycle.

• If the refrigerant comes in contact with a ﬂ ame, it produces a toxic gas.

• Do not add or replace refrigerant other than speciﬁ ed type. It may cause product damage, burst and injury, etc.

• Do not leak refrigerant while piping work for an installation or re-installation, and while repairing refrigeration parts. Handle liquid refrigerant carefully as it may cause

frostbite.

When Servicing

• Turn the power OFF at the main power box (mains) before opening the unit to check or repair electrical parts and wiring.

• Keep your ﬁ ngers and clothing away from any moving parts.

• Clean up the site after you ﬁ nish, remembering to check that no metal scraps or bits of wiring have been left inside the unit.

CAUTION

• Do not touch the air inlet or the sharp aluminum ﬁ ns of the outdoor unit. You may get injured.

• Ventilate any enclosed areas when installing or testing the refrigeration system. Leaked refrigerant gas, on contact with ﬁ re or heat, can produce dangerously toxic gas.

• Conﬁ rm after installation that no refrigerant gas is leaking. If the gas comes in contact with a burning stove, gas water heater, electric room heater or other heat source, it can cause the generation of toxic gas.

WARNING

• This product must not be modiﬁ ed or disassembled under any circumstances. Modiﬁ ed or disassembled unit may cause ﬁ re, electric shock or injury.

• Do not clean inside the indoor and outdoor units by users. Engage authorized dealer or specialist for cleaning.

• In case of malfunction of this appliance, do not repair by yourself. Contact to the sales dealer or service dealer for a repair.

Check of Density Limit

The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its density will not exceed a set limit.

The refrigerant (R410A), which is used in the air conditioner, is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws imposed to protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its density should rise excessively. Suffocation from leakage of refrigerant is almost non-existent. With the recent increase in the number of high density buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of ﬂ oor space, individual control, energy conservation by curtailing heat and carrying power, etc. Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared to conventional individual air conditioners.

Others

CAUTION

• Do not sit or step on the unit, you may fall down accidentally.

• Do not touch the air inlet or the sharp aluminum ﬁ ns of the outdoor unit. You may get injured.

• Do not stick any object into the FAN CASE. You may be injured and the unit may be damaged.

If a single unit of the multi air conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its density does not reach the limit (and in the event of an emergency, measures can be made before injury can occur). ASHRAE and the International Mechanical Code of the ICC as well as CSA provide guidance and deﬁ ne safeguards related to the use of refrigerants, all of which deﬁ ne a Refrigerant Concentration Level (RCL) of 25 pounds (11.3 kg) per 1,000 cubic feet (28.3 m3) for R410A refrigerant. For additional guidance and precautions related to refrigerant safety, please refer to the following documents:

International Mechanical Code 2012 (IMC-2012) (or more recently revised) ASHRAE 15 ASHRAE 34

CONTENTS

Page Page

IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Please Read Before Starting

Check of Density Limit

1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

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

1-2. Accessories Supplied with Unit

1-3. Type of Copper Tube and Insulation Material

1-4. Additional Materials Required for Installation

2. SELECTING THE INSTALLATION SITE . . . . . . . . . . . . . . 6

2-1. Indoor Unit

3. HOW TO INSTALL THE INDOOR UNIT . . . . . . . . . . . . . . 7

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. Removing and Installing the Grille

3-5. Shape the Indoor Side Tubing

3-6. Wiring Instructions

3-7. Mounting

3-8. Drain Hose

7. PRECAUTIONS ON TEST RUN . . . . . . . . . . . . . . . . . . . 21

Checkpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

■

8. HOW TO INSTALL WIRELESS REMOTE CONTROLLER

RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

NOTE

Refer to the Operating Instructions attached to the optional

Wireless Remote Controller Receiver.

9. APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Name of Parts

■

Care and Cleaning

■

When Using Wireless Remote Controller Instead of Wired

■

Remote Controller

Troubleshooting

■

Tips for Energy Saving

■

4. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4-1. General Precautions on Wiring

4-2. Recommended Wire Length and Wire Diameter for

Power Supply System

4-3. Wiring System Diagrams

5. HOW TO PROCESS TUBING . . . . . . . . . . . . . . . . . . . . . 18

5-1. Connecting the Refrigerant Tubing

5-2. Connecting Tubing Between Indoor and Outdoor Units

5-3. Insulating the Refrigerant Tubing

5-4. Taping the Tubes

5-5. Finishing the Installation

6. HOW TO INSTALL THE TIMER REMOTE CONTROLLER OR HIGH-SPEC WIRED

REMOTE CONTROLLER (OPTIONAL PART) . . . . . . . . 19

NOTE

Refer to the Operating Instructions attached to the optional Timer Remote Controller or optional High-spec Wired Remote Controller.

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. Flathead screwdriver

2. Phillips head screwdriver

3. Knife or wire stripper

4. Tape measure

5. Carpenter’s level

6. Sabre saw or keyhole 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)

1-2. Accessories Supplied with Unit

1-3.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. Cut each tube to the appropriate lengths +11-13/16 to 15-6/8

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

3. Use insulated copper wire for field wiring. Wire size varies with the total length of wiring. See the section “4. ELECTRICAL WIRING” for details.

CAUTION

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

(40 cm) to dampen vibration between units.

(8 mm).

(30 cm)

1-4. Additional Materials Required for Installation

1. Refrigeration (armored) tape

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

3. Putty

4. Refrigeration tubing lubricant

5. Clamps or saddles to secure refrigerant tubing

6. Scale for weighing

Table 1-1 (Wall Mounted)

Part Name Figure

Tapping screw 8

Tapping screw

Flare insulation

Drain hose adapter Operating

Instructions Installation

Instructions

Warranty card

Q’ty

Remarks

Truss-head Phillips 5/32" × 13/16"

(4 × 20 mm) Truss-head Phillips

5/32" × 13/32" (4 × 10 mm)

2. SELECTING THE INSTALLATION SITE

Wall Mounted

2-1. Indoor Unit

AVOID:

● areas where leakage of flammable gas may be expected.

● places where large amounts of oil mist exist.

● direct sunlight.

● locations near heat sources which may affect the

performance of the unit.

● locations where external air may enter the room directly. This may cause “condensation” on the air discharge ports, causing them to spray or drip water.

● locations where the remote controller will be splashed with water or affected by dampness or humidity.

● installing the remote controller behind curtains or furniture.

● locations where high-frequency emissions are generated.

DO:

● select an appropriate position from which every corner of the room can be uniformly cooled.

● select a location where the ceiling is strong enough to support the weight of the unit.

WARNING

● select a location which can support a load that is four times the indoor unit weight.

● select a location where tubing and drain pipe have the shortest run to the outdoor unit.

● allow room for operation and maintenance as well as unrestricted air flow around the unit.

● install the unit within the maximum elevation difference above or below the outdoor unit and within a total tubing length (L) from the outdoor unit as detailed in the Installation I

nstructions packed with the outdoor unit.

●

allow room for mounting the remote controller about 3.3 ft. (1 m) off the floor, in an area that is not in direct sunlight or in the flow of cool air from the indoor unit.

NOTE

Air delivery will be degraded if the distance from the floor to the ceiling is greater than 9.8 ft. (3 m).

The air inlet and outlet of the indoor unit must be free of any obstructions to allow air to spread throughout the room.

1. The indoor unit must be within a maintenance soace.

min. 2

" (5 cm)

min. 3" (7.5 cm)

min. 2

" (5 cm)

Front View

Fig. 2-1

3. HOW TO INSTALL THE INDOOR UNIT

3-1. Remove the Rear Panel from the Unit

(1) Remove and discard the set screw on the rear panel.

(Fig. 3-1)

(2) Press the 2  marks on the frame cover and disengage the

stationary tabs from the frame. (Fig. 3-2)

(3) Remove the rear panel by grasping the sections shown in

Fig. 3-3 and pulling it in the direction shown by the arrow.

NOTE

Tubing can be extended in 6 directions as shown in Fig. 3-5. Select the direction you need providing the shortest run to the outside unit.

● When left tubing is to be done, switch the drain hose and drain cap. (For details, see the section “Switching drain hose and drain cap” on page 12.)

3-2. Make a Hole

(1) Place the rear panel from the indoor unit on the wall at the

location selected. Make sure the panel is horizontal, using a carpenter’s level or tape measure to measure down from the ceiling. Wait until after cutting the hole before attaching the rear panel to the wall.

(2) Determine which side of the unit you should make the hole for

tubing and wiring. (Fig. 3-6)

Set screw only for transportation

Fig. 3-1

Rear panel

 marks

Fig. 3-2

Rear panel

NOTE

In the case of left-rear tubing, use the measurement points 158 mm from the marked position on the rear panel for precise placement of the hose outlet. (Fig. 3-6)

(3) Before making the hole, check carefully that no studs or pipes

are directly run behind the spot to be cut.

Also avoid areas where

CAUTION

electrical wiring or conduits are located.

The above precautions are also applicable if tubing goes through the wall in any other location.

6-7/32" (158 mm)

5-3/16" (132 mm)

Unit: inch (mm)

Fig. 3-6

Fig. 3-3

Rear panel

Fig. 3-4

Left tubing

Left-downward tubing

Left-rear tubing

Right-rear tubing (recommended)

Right tubing

Right-downward tubing

Fig. 3-5

(4) Using a sabre saw, keyhole saw or hole-cutting drill

attachment, cut a hole in the wall. See Table 3-1 and Fig. 3-7.

Table 3-1

Hole Dia.

3-5/32" (80 mm)

(5) Measure the thickness of the wall from the inside edge to the

outside edge and cut PVC pipe at a slight angle 1/4" (6 mm) shorter than the thickness of the wall. (Fig. 3-8)

(6) Place the plastic cover over the end of the pipe (for indoor side

only) and insert the pipe in the wall. (Fig. 3-9)

3-3. Install the Rear Panel on the Wall

Be sure to confirm that the wall is strong enough to suspend the unit.

There are a number of screw holes on the rear panel. Using the 8 screw holes with  mark is recommended to attach

the rear panel securely to the wall.

NOTE

Hole should be made at a slight downward slant to the outdoor side.

Indoor side

Outdoor side

Fig. 3-7

PVC pipe (Locally purchased)

Cut at slight angle

Fig. 3-8

NOTE

Be sure to install the unit within the range of the wall.

If Wooden Wall

(1) Attach the rear panel to the wall with the 8 screws provided.

(Fig. 3-10)

If you are not able to line up the holes in the rear panel with

the beam locations marked on the wall, use rawl plugs or toggle bolts to go through the holes on the panel or drill 3/16" (5 mm) dia. holes in the panel over the stud locations and then mount the rear panel.

(2) Double check with a carpenter’s level or tape measure that the

panel is level. This is important to install the unit properly. (Fig. 3-11)

(3) Make sure the panel is flush against the wall. Any space

between the wall and unit will cause noise and vibration.

INSIDE OUTSIDE

Plastic cover

(Locally purchased)

Wall

PVC pipe

Slight angle

Fig. 3-9

Fig. 3-10

Fig. 3-11

3-4. Removing and Installing the Grille

Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below.

How to remove the grille

(1) Open the front panel until it is nearly horizontal, grasp the

sections near the front panel arms on both sides, and then remove the panel by pushing the arms towards the outside while pulling the panel towards you. If the front panel is difficult to remove, grasp both ends of it and lift it up slightly. Move it to the left and disengage the left arm, then move it to the right and disengage the right arm. (Fig. 3-12)

(2) Lift the anti-mold filter up slightly to disengage it from the

protrusions on the unit, and then pull downward to remove the filter from the unit. (Fig. 3-12)

(3) Remove the 3 screws from the front of the unit and remove

the screw covers on the bottom surface. Then remove the 2 screws. (Fig. 3-13)

(4) Remove the screw on the right side cover plate and remove

the cover. (Fig. 3-13)

(5) Remove the lower flap by disengaging 4 pins of the lower flap

in order. (Figs. 3-14 and 3-15) (The flap is so flexible that it can be easily removed.)

(6) Lift up the grille in the direction shown by the arrow and pull

the grille towards you to remove it. (Fig. 3-16)

How to replace the grille

(1) While aligning the top edge of the grille with the frame, move

the grille horizontally and insert the top and bottom into the frame.

(2) Press the grille firmly with your hand to ensure no gap exists

between the frame and grille.

(3) Tighten the 6 screws. And fix the removed covers in place.

(4) Grasp the sections near the front panel arms on both sides,

and hold the front panel so that it is nearly horizontal. Push the arm shafts towards the outside so that they come into contact with the top of the indentations on the right and left sides of the air conditioner. Then push firmly until the arm shafts click into place. (Fig. 3-17)

(5) Remount the lower flap.

(In remounting the flap, it cannot be turned end for end because the right and left pins of the flap differ in form. (Fig. 3-15))

(6) Insert the top of the anti-mold filter, and then secure the

bottom of the filter with the protrusions on the unit.

(7) When closing the front panel, push the central part of the front

panel first and then press the bottom right and left corners in place until you feel a click. (Fig. 3-18)

NOTE

Check that no gap exists between the frame and the grille.

Screw (on the bottom)

Grille

Fig. 3-14

Front panel

Anti-mold filter

Screw (on the front)

Screw cover

Upper flap

Lower flap

Front panel

Grille

Arm

Protrusions

Screw (on the cover)

Screw Bottom surface

Fig. 3-15

Indentation

Fig. 3-12

Fig. 3-13

Lower flap

Fig. 3-16

Arm

Fig. 3-17

Fig. 3-18

+ 19 hidden pages