Panasonic S-18MK2U6 Installation Instructions Manual Download Page 15 | Manualshive

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15

N OT E

(1) See the section “4-2. Recommended Wire Length

and Wire Diameter for Power Supply System” for the
explanation of “A”, “B” and “C” in the above diagram.

(2) The basic connection diagram of the indoor unit shows

the terminal board, so the terminal boards in your
equipment may differ from the diagram.

(3) Refrigerant Circuit (R.C.) address should be set before

turning the power on.

(4) Regarding R.C. address setting, refer to the installation

instructions supplied with the remote controller
(optional). Auto address setting can be executed by
remote controller automatically. Refer to the installation
instructions supplied with the remote controller (optional).

(5) Ensure that the ground shield cable for inter-unit control

wiring between outdoor and indoor units should be
connected to the outdoor unit.

(6) For the inter-unit control wiring between the indoor units,

be sure to connect between the shield.

Then connect it to the shield of inter-unit control wiring
between outdoor and indoor units.

(7) Ensure that the ground shield cable for a remote

controller should be connected only to the indoor unit.

4-3. Wiring System Diagrams

Fig. 4-1

ALWAYS COMPLY WITH NATIONAL AND
LOCAL CODE REQUIREMENTS.

*

*

*

*

U2

U1

L2

L1

R2

R1

2

U2

1

U1

2

1

2

1

2

1

C

L1

L2

L3

L1

L2

L1

L2

2

1

2

1

L1

L2

L3

U2

U1

L2

L1

R2

R1

U2

U1

L2

L1

R2

R1

L2

L1

L3

L2

L1

L3

A

A

A

A

B

B

*

L1

L2

* NOTE:

Disconnect Switch may be needed by the
National/Local code.

Power supply
208 / 230 V, 60Hz, 3PH

* Disconnect switch

(Field Supply)

Inter-outdoor unit control wiring

Outdoor unit
INV unit

Power supply
208 / 230V, 60Hz, 1PH

Power supply
208 / 230V, 60Hz, 1PH

Power supply
208 / 230V, 60Hz, 1PH

Group control:

Indoor
unit (No. 1)

Indoor
unit (No. 2)

Indoor
unit (No. 3)

Outdoor unit
INV unit

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Remote
Controller

Remote
Controller

WHT
BLK

WHT
BLK

Power supply
208 / 230 V, 60Hz, 3PH

Fig. 4-2

L1

L2

U1

U2

5P terminal board

Power
supply

Type K2

Inter-unit

control

wiring

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2015/09/04 11:57:35

2015/09/04 11:57:35

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Summary of Contents for S-18MK2U6

Page 1: ... No Indoor Units Type Indoor Unit Type Nominal Capacity 18 24 K2 Wall Mounted S 18MK2U6 S 24MK2U6 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 CV6233320519 85464369878010 ...

Page 2: ... be installed with Earth Leakage Circuit Breaker ELCB or Residual Current Device RCD Otherwise it may cause electrical shock and fire in case of equipment breakdown or insulation breakdown 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 ...

Page 3: ... be injured and the unit may be damaged 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 ozo...

Page 4: ...or 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 ...

Page 5: ...tions 1 Installation Instructions 1 Warranty card 1 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 30 cm to 15 6 8 40 cm to dampen vibration between units 2 Foamed polyethylene insulation for copper tubes as...

Page 6: ...NG 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 o...

Page 7: ... 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 NOTE In the case of left rear tubing use the measurement points 158 m...

Page 8: ...all 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 Dou...

Page 9: ...ove 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 th...

Page 10: ...agram 2 Provide a power outlet to be used exclusively for each unit with a power supply disconnect and circuit breaker for overcurrent protection provided in the exclusive line 3 To prevent possible hazards due to insulation failure the unit must be grounded 4 Each wiring connection must be done tightly and in accordance with the wiring system diagram Wrong wiring may cause the unit to misoperate ...

Page 11: ...the wiring refrigerant tubing and drain hose through the hole in the wall Adjust the indoor unit so it is securely seated on the rear panel Fig 3 25 3 Carefully bend the tubing if necessary to run along the wall in the direction of the outdoor unit and then tape as far as the fittings The drain hose should come straight down the wall to a point where water runoff won t stain the wall 4 Connect the...

Page 12: ...ded Check that the screw holes in the drain bracket and the drain pan outlet are aligned and securely in contact then fasten them with the screw After attaching the drain hose check that it is attached securely Fig 3 31 Drain cap Use a Phillips head screwdriver to push the drain cap in firmly If it is difficult to push in wet the cap with water first 3 Install the indoor unit on the rear panel 4 C...

Page 13: ...p is appropriate less than 5 64 2 mm 3 8 Drain Hose a The drain hose should be slanted downward to the outdoors Fig 3 35 b Never form a trap in the course of the hose c If the drain hose will run in the room insulate the hose with insulation so that chilled condensation will not damage furniture or floors Fig 3 36 Foamed polyethylene or its equivalent is recommended WARNING Do not supply power to ...

Page 14: ...r any damage or misoperation that occurs as a result of such unauthorized changes 7 Regulations on wire diameters differ from locality to locality For field wiring rules please refer to your LOCAL ELECTRICAL CODES before beginning You must ensure that installation complies with all relevant rules and regulations 8 To prevent malfunction of the air conditioner caused by electrical noise care must b...

Page 15: ...shield Then connect it to the shield of inter unit control wiring between outdoor and indoor units 7 Ensure that the ground shield cable for a remote controller should be connected only to the indoor unit 4 3 Wiring System Diagrams Fig 4 1 ALWAYS COMPLY WITH NATIONAL AND LOCAL CODE REQUIREMENTS U2 U1 L2 L1 R2 R1 2 U2 1 U1 2 1 2 1 2 1 C L1 L2 L3 L1 L2 L1 L2 2 1 2 1 L1 L2 L3 U2 U1 L2 L1 R2 R1 U2 U1 ...

Page 16: ...r unit Outdoor unit Indoor unit Indoor unit Indoor unit Indoor unit Prohibited Prohibited Indoor unit Fig 4 3 3 Do not install the inter unit control wiring such as star branch wiring Star branch wiring causes misaddress setting Fig 4 4 Fig 4 4 4 If branching the inter unit control wiring the number of branch points should be 16 or fewer Central Controller Outdoor unit Outdoor unit Indoor unit Ind...

Page 17: ...zard may also occur Therefore ensure that all wiring is tightly connected When connecting each power wire to the terminal follow the instructions on How to connect wiring to the terminal and fasten the wire securely with the fixing screw of the terminal board Wiring sample Type K2 L1 R1 R2 L2 N U1 U2 Functional ground screw External Electronic Expansion Valve Kit Protective ground screw Fixture sc...

Page 18: ... 3 Remove the flare nut from the unit and be sure to mount it on the copper tube 4 Make a flare at the end of the copper tube with a flare tool Fig 5 3 NOTE A good flare should have the following characteristics inside surface is glossy and smooth edge is smooth tapered sides are of uniform length Caution Before Connecting Tubes Tightly 1 Apply a sealing cap or water proof tape to prevent dust or ...

Page 19: ... with the unit or else flare nuts for R410A type 2 The refrigerant tubing that is used must be of the correct wall thickness as shown in the table at right Because the pressure is approximately 1 6 times higher than conventional refrigerant pressure the use of ordinary flare nuts type 1 or thin walled tubes may result in tube rupture injury or asphyxiation caused by refrigerant leakage Tube diamet...

Page 20: ...en the insulator at both ends with the supplied vinyl clamps Fig 5 8 Insulation material The material used for insulation must have good insulation characteristics be easy to use be age resistant and must not easily absorb moisture WARNING After a tube has been insulated never try to bend it into a narrow curve because it can cause the tube to break or crack Never grasp the drain or refrigerant co...

Page 21: ... operation is still not possible with the brown connectors connected cut the JP003 Be sure to turn OFF the power before performing this work JP003 CN044 CN040 Checkpoint Checkpoint Symptom Check Remark 1 Make sure whether indoor and outdoor units are correctly installed Fall vibration noise 2 Make sure whether gas leakage is tested No cooling no heating 3 Make sure whether insulation is completed ...

Page 22: ...er gets blocked the efficiency of the air conditioner drops greatly Type K2 Period 2 weeks NOTE The frequency with which the filter should be cleaned depends on the environment in which the unit is used How to clean the filter 1 Remove the air filter from the air intake grille 2 Use a vacuum cleaner to remove light dust If there is sticky dust on the filter wash the filter in lukewarm soapy water ...

Page 23: ...ecial care should be taken when you clean these parts The internal coil and other components must also be cleaned periodically Consult your dealer or service center Care After a prolonged idle period Check the indoor and outdoor unit air intakes and outlets for blockage if there is a blockage remove it Care Before a prolonged idle period Operate the fan for half a day to dry out the inside Disconn...

Page 24: ...ugh operation stops Fan rotating makes operation smoothly Fan may sometimes rotates because of drying heat exchanger due to settings Wind direction changes while operating Wind direction setting cannot be made Wind direction cannot be changed When air discharge temperature is low or during defrost operation horizontal wind flow is made automatically Flap position is occasionally set up individuall...

Page 25: ... conditioner still does not work properly although you checked the points as described above first stop the operation and turn off the power switch Then contact your dealer and report the serial number and symptom Never repair your air conditioner by yourself since it is very dangerous for you to do so You also report if the inspection mark and the letters E F H L P in combination with the numbers...

Page 26: ...26 NOTE ...

Page 27: ...27 NOTE ...

Page 28: ...85464369878010 DC0915 0 Printed in Japan ...

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