Panasonic s-07mf2u6, s-09mf2u6, s-12mf2u6, s-15mf2u6, s-18mf2u6 installation

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INSTALLATION INSTRUCTIONS

VRF System Air Conditioner

This air conditioner uses the refrigerant R410A.

Model No.

Indoor Units

Type Indoor Unit Type

Low Silhouette

Ducted

7 9 12 15 18 24 36 48 54

S-07MF2U6 S-09MF2U6 S-12MF2U6 S-15MF2U6 S-18MF2U6 S-24MF2U6 S-36MF2U6 S-48MF2U6 S-54MF2U6

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.

Nominal Capacity

F616469

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.

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 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

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 ﬁre 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 ﬁre 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 ﬁns on the air conditioner can cut your ﬁngers.

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 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 5 feet (1.5 m) away from the unit.

When Connecting Refrigerant Tubing

•Ventilate the room well, in the event that is refrigerant 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.

•Keep all tubing runs as short as possible.

•Use the ﬂare method for connecting tubing.

•Apply refrigerant lubricant to the matching surfaces of

the ﬂare 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 speciﬁed refrigerant (R410A) in refrigeration cycle. It causes capacity down, and risk of explosion and injury due to high tension

inside the refrigerant cycle.

•Check for a leaking refrigerant! Refrigerant gas may produce a toxic gas if it

comes in contact with ﬁre.

•Do not add or replace refrigerant other than speciﬁed 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 ﬁngers and clothing away from any moving parts.

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

CAUTION

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

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

•Conﬁrm 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 poisonous gas.

WARNING

•This product must not be modiﬁed or disassembled under any circumstances. Modiﬁed or disassembled unit may cause ﬁre, 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 ﬂoor 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. 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).

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 ﬁns 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.

ASHRAE and the International Mechanical Code of the ICC as well as CSA provide guidance and deﬁne safeguards related to the use of refrigerants, all of which deﬁne 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

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

■ Low Silhouette Ducted Type (F2 Type) . . . . . . . . . . 7

3-1. Required Minimum Space for Installation and

Service

3-2. Suspending the Indoor Unit

3-3. Installing the Drain Pipe

3-4. Connecting Duct

8. HOW TO INSTALL WIRELESS REMOTE

CONTROLLER RECEIVER . . . . . . . . . . . . . . . . . . 18

N OT E

Refer to the Operating Instructions attached to the optional Wireless Remote Controller Receiver.

9. CHECKING THE DRAINAGE . . . . . . . . . . . . . . . . 18

10. EXTERNAL STATIC PRESSURE SETTING . . . . . 19

10-1. How to Set on PC Board

10-2. Operating the Timer Remote Controller

(CZ-RTC2)

10-3. Operating the High-spec Wired Remote

Controller (CZ-RTC3)

11. APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

■ Care and Cleaning

■ Troubleshooting

■ Tips for Energy Saving

4. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . 11

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 . . . . . . . . . . . . . . . . 15

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. PRECAUTONS ON TEST RUN . . . . . . . . . . . . . . . 18

7. HOW TO INSTALL THE TIMER REMOTE CONTROLLER (CZ-RTC2) OR HIGH-SPEC WIRED REMOTE CONTROLLER (CZ-RTC3)

(OPTIONAL PART) . . . . . . . . . . . . . . . . . . . . . . . . 18

N OT E

Refer to the Operating Instructions attached to the optional Timer Remote Controller or optional Highspec 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 Table 1-1 (Low Silhouette Ducted)

Part Name Figure Q’ty Remarks

Washer 8

Flare insulator

Insulating tape

For suspending indoor unit from ceiling

For gas and liquid

tubes

For gas and liquid

tubes flare nuts

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.

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˝(8 mm).

3. Use insulated copper wire for field wiring. Wire size varies with the total length of wiring. Refer to 4. ELECTRICAL WIRING for details.

CAUTION

Check local electrical codes and regulations before

obtaining wire.

limitations.

Also, check any speciﬁed instructions or

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

Drain insulator

Hose band

Packing

Drain hose

Operating Instructions

Installation Instructions

Warranty card

Band

Short-circuit connection

1 For drain hose joint

1 For securing drain hose

For drain hose joint

(hard material)

For drain hose joint

(soft material)

For inter-unit control

wiring

For high static pressure (Located on the

back of the electrical component box lid. )

● Use 3/8˝(M10) for suspension bolts.

● Suspension bolts and nuts are field supply.

2. SELECTING THE INSTALLATION SITE

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.

● 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 manual 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.

● If the indoor unit is installed on the ceiling where the temperature or humidity inside is high (over 86°F(30°C)/RH: 70%), add insulating material to the surface of the unit to avoid dew condensation.

9-27/32”

(250 mm)

25-19/32” (650 mm)

Fig. 2-1

3. HOW TO INSTALL THE INDOOR UNIT

■Low Silhouette Ducted Type (F2 Type)

Unit: inch (mm)

3-1. Required Minimum Space for Installation and

Service

● The minimum space for installation and service is shown in Fig. 3-1 and Table 3-1.

● Space between the unit and the ceiling should be more than 3/4”(19.05 mm). (Fig. 3-1)

Table 3-1 Unit: inch (mm)

Type 7, 9, 12, 15, 18 24 36, 48, 54

A (Length) 34-9/64 (867) 42-1/64 (1,067) 57-3/4 (1,467)

● It is recommended that space be provided (23-5/8” × 23-5/8”) (600 × 600 mm) for checking and servicing the electrical system.

● The detailed dimensions of the indoor unit is shown in Fig. 3-2 and Table 3-2.

Table 3-2

Type A B C D E F

7, 9, 12, 15, 18

36, 48, 54

inch 34-9/64 31-1/2 17-23/32 (Pitch 5-29/32 × 3) 2-51/64 23-5/16

mm 867 800 450 (Pitch 150 × 3) 71 592

inch 42-1/64 39-3/8 29-17/32 (Pitch 5-29/32 × 5) 53/64 31-3/16

mm 1,067 1,000 750 (Pitch 150 × 5) 21 792

inch 57-3/4 55-1/8 41-11/32 (Pitch 5-29/32 × 7) 2-51/64 46-59/64

mm 1,467 1,400 1,050 (Pitch 150 × 7) 71 1,192

Unit: inch (mm)

Air intake port side

(Suspension bolt pitch)

6-49/64

(172)

(Suspension bolt pitch)

Indoor unit

Min. 9-27/32 (250)

Ceiling

25-3/64

(636)

Electrical component box

Inspection

access

23-5/8 × 23-5/8

(600 × 600)

Refrigerant tubing

Min. 25-19/32 (650)

Min. 3/4”

(Min. 19.05)

Fig. 3-1

a) Refrigerant tubing joint (liquid tube) b) Refrigerant tubing joint (gas tube) c) Upper drain port VP25 (O.D. 1-17/64” (O.D. 32 mm))

7-7/8” (200 mm) flexible hose supplied

d) Bottom drain port VP25 (O.D. 1-17/64” (O.D. 32 mm)) e) Suspension lug (4 – 15/32” × 1-3/16” (4 – 12 × 30 mm)) f

) Inter-unit control wiring port g) Fresh air intake port (ø5-29/32” (ø150 mm)) h) Flange for flexible air outlet duct i

) Electrical component box j

) Power supply wiring port

11-7/16

(290)

10-3/64

(255)

f j

11-13/16

3-35/64

(90)

2-3/4 (70)

c d

1-1/32 (26.1)

(300)

(280)

11-1/32

holes

-ø1/8 (ø3)

1-5/16

(33.4)

D D

2-1/8

(54)

(Flange O.D.)

6-1/16

(154)

Air outlet duct side

Inspection

access

23-5/8 × 23-5/8

(600 × 600 mm)

25-3/64 (636)

(Field supply)

5-29/32

(150)

1-5/16 (33.4)

(27)

1-1/16

(186)

7-21/64

(65)

(700)

2-9/16

27-9/16

(256)

10-5/64

(30)

1-3/16

(113)

4-29/64

29/32 29/32

(23) (23)

5-33/64

(140)

Fig. 3-2

3-2. Suspending the Indoor Unit

Depending on the ceiling type:  •Insertsuspensionbolts(Fig.3-3)

 •Useexistingceilingsupportsorconstructasuitable

support (Fig. 3-4).

Hole-in-anchor Hole-in-plug

Concrete

Suspension bolt (3/8” or M10) (field supply)

Insert

Fig. 3-3

Nuts and washers (use for upper and lower)

Double nuts

Suspension bolt

Suspension lug

Notch

Fig. 3-5

Ceiling tiles

Ceiling support

Fig. 3-4

WARNING

It is important that you use extreme care in supporting the indoor unit inside the ceiling. Ensure that the ceiling is strong enough to support the weight of the unit. Before hanging the unit, test the strength of each attached suspension bolt.

(1) When placing the unit inside the ceiling, determine

the pitch of the suspension bolts referring to the dimensional data as shown in Fig. 3-1 and Table 3-2. Tubing must be laid and connected inside the ceiling when suspending the unit. If the ceiling is already constructed, lay the tubing into position for connection to the unit before placing the unit inside the ceiling.

(2) Screw in the suspension bolts allowing them to

protrude from the ceiling (Fig. 3-3). (Cut the ceiling material, if necessary.)

(3) Thread the 3 hexagonal nuts and 2 washers (field

supply) onto each of the 4 suspension bolts (Figs. 3-5 and 3-6). Use 1 nut and 1 washer for the upper part, and 2 nuts and 1 washer for the lower part, so that the unit will not fall off the suspension lugs.

Suspension bolt

Hexagonal nut

Double nuts

Fig. 3-6

● This shows an example of installation.

Air outlet duct

Air outlet grille

Suspension bolt

Indoor unit

Bolt anchor

Air intake duct

Air intake grille

Ceiling material

Fig. 3-7

3-3. Installing the Drain Pipe

(1) Prepare standard hard PVC pipe (O.D. 1-17/64" (O.D.

32 mm)) for the drain and use the supplied hose band to prevent water leaks. The PVC pipe must be purchased separately. The transparent drain part on the unit allows you to check drainage. (Fig. 3-8)

CAUTION

● Do not use adhesive tape at the drain connection port on the indoor unit.

● Insert the drain pipe until it contacts the socket, and then secure it tightly with the hose band.

● Do not use the supplied drain hose bent at a 90° angle. (The maximum permissible bend is 45°.)

● Tighten the hose clamps so their locking nuts face upward. (Fig. 3-8)

Align the wire of hose band without separating from the drain hose and tighten so that it does not contact the bead.

Drainage check section on drain port (transparent)

Drain hose (supplied)

Bead

Hard PVC socket VP-25 (not supplied)

Packing (supplied)

Hard PVC pipe VP-25 (not supplied)

PVC adhesive

Fig. 3-8

(2) After connecting the drain pipe securely, wrap the

supplied packing and drain pipe insulator around the pipe, then secure it with the vinyl clamps. (Fig. 3-9)

Drain insulator (supplied)

● Do not install the pipe with an upward slant from the connection port. This will cause the drain water to ﬂow backward and leak when the unit is not operating. (Fig. 3-12)

Upward slant

Prohibited

Fig. 3-12

● Do not apply force to the piping on the unit side when connecting the drain pipe. The pipe should not be allowed to hang unsupported from its connection to the unit. Fasten the pipe to a wall, frame, or other support

as close to the unit as possible. (Fig. 3-13)

Support pieces

Fig. 3-13

Vinyl clamps

Fig. 3-9

N OT E

(field supply)

Make sure the drain pipe has a downward slant (1/100 or more) and that there are no water traps.

CAUTION

● Do not install an air bleeder as this may cause water to spray from the drain pipe outlet. (Fig. 3-10)

Air bleeder

Prohibited

Fig. 3-10

● If it is necessary to increase the height of the drain pipe, the section directly after the connection port can be raised a maximum of 1.64 ft. (500 mm). Do not raise it any higher than 1.64 ft. (500 mm), as this could result in water leaks. (Fig. 3-11)

Good

11-13/16" (300 mm) or less

19-11/16" (500 mm) or less

Fig. 3-11

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