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6

Installation Manual

Outdoor Unit

2

  Installation / service tools 

Changes in the product and components 

In air conditioners using R410A, in order to prevent any other refrigerant from being accidentally charged, the service port diameter size of the outdoor unit 
service valve has been changed. (1/2 UNF 20 threads per inch) 
•  In order to increase the pressure resisting strength of the refrigerant piping, 

fl

 are processing diameter and opposing 

fl

 are nuts sizes have been changed. (for  

copper pipes with nominal dimensions 1/2 and 5/8) 

Gauge manifold for R410A 

Phillips screwdriver 

Pipe cutter 

Flare tool for R410A 

Charge hose for R410A 

Level 

Torque wrench 

4 mm hexagonal wrench 

Vacuum pump for R410A 

Scale 

Wrench (or spanner) 

Gas leakage detector for R410A 

Utility knife 

Reamer

3

 Speci

fi

 cations

RAS-3M18S3AV-E

RAS-2M18S3AV-E

RAS-2M14S3AV-E

Operating conditions

*1

Cooling operation

–10 to 46 °C

Dry operation

–10 to 46 °C

Heating operation

–20 to 24 °C

Dimension

Height

630 mm

Width

800 mm

Depth

300 mm

Net weight

46 kg

44 kg

Refrigerant R410A

1.5 kg

1.32 kg

Power supply

1 ph, 50 Hz, 220-240 V  1 ph, 60 Hz, 220 V

Maximum running current

13.1 A

12.6 A

Installation fuse rating

20 A breaker or fuse (all types can be used)

Power cord (H07RN-F or 60245IEC66)

3-core 1.5 mm

2

Connecting cable (H07RN-F or 60245IEC66)

4-core 1.0 mm

2

 or more

Pipe length

Minimum for 1 unit

2 m

Maximum for 1 unit

25 m

20 m

Maximum for total unit

50 m

30 m

Height difference

10 m

No additional refrigerant charge

50 m

30 m

The specifications for performance of this air conditioner differs depending on the combination of the indoor units which are operated.
The information in this specifications table applies for the combinations with the catalogue.
For operation, read the owner’s manual packed with the indoor unit.
Equipment complying with IEC 61000-3-12.

*1  If the air conditioner is used in conditions other than the above, the safety protection functions may be activated.

*  Example of indoor unit class: RAS-B10UFV-E1 is abbreviated as “10”.

Indoor unit class

Standard connecting pipe diameter

RAS-3M18S3AV-E

RAS-2M18S3AV-E

RAS-2M14S3AV-E

Unit C

07 or 10 or 13

6.35, 9.52 mm

Unit B

07 or 10 or 13 or 16

6.35, 9.52 mm

*3

6.35, 9.52 mm

*3

6.35, 9.52 mm

Unit A

07 or 10 or 13 or 16

6.35, 12.7 mm

*2

6.35, 9.52 mm

*3

6.35, 9.52 mm

Total

36 (RAS-3M18S3AV-E)

32 (RAS-2M18S3AV-E)
26 (RAS-2M14S3AV-E)

All combinations that do not exceed the “Total” number 
can be installed.
2 or more indoor units must be connected to an outdoor 
unit.
When 2 indoor units are connected to an outdoor unit, 
note that some combinations of indoor units are not 
compatible.
For the further details, refer to the catalogue.
*2 Need the reducer (07, 10, 13 class 12.7 to 9.52 mm). 
*3 Need the expander (16 class 9.52 to 12.7 mm). 
• Locally procured.

4

  Installation parts, accessories

Installation parts  *Locally procured

Parts name

Specifications

Q’ty

*4  Refrigerant piping covered with insulating material (Polyethylene 

foam, 6 mm thick) When duct-type or cassette-type unit is to be 
installed, it shall be covered with thicker insulating material
(Polyethylene foam, 10 mm thick)

Refrigerant piping

*4

Indoor unit

(abbreviation)

Liquid side

(O.D.)

Gas side (O.D.)

1 ea.

07, 10, 13

6.35 mm

9.52 mm

16

6.35 mm

12.7 mm

Putty, PVC tapes

1 ea.

Accessories

Installation 

manual

1

Rubber cap

(Water-proof)

2

CD-ROM

(Installation 

manual)

1

F-GAS label

1

Drain nipple

1

1116691099_(01) EN.indd   6

1116691099_(01) EN.indd   6

9/22/15   5:59 PM

9/22/15   5:59 PM

Summary of Contents for RAS-2M14S3AV-E

Page 1: ... Manual Outdoor Unit Model name RAS 3M18S3AV E RAS 2M18S3AV E RAS 2M14S3AV E NOTE Descriptions about operations for the 3 indoor units in this manual are not applicable to RAS 2M18S3AV E and RAS 2M14S3AV E English Installation Manual Outdoor Unit ...

Page 2: ...ng 10 9 Test run 10 10 Pump down Operation 12 11 Troubleshooting 12 Please read this Installation Manual carefully before installing the Air Conditioner This Manual describes the installation method of the outdoor unit For installation of the indoor unit refer to the Installation Manual attached to the indoor unit IMPORTANT NOTICE For details on how to install the indoor units refer to the install...

Page 3: ...ity of severe injury 1 or death WARNING It indicates that incorrect use of this unit may cause severe injury or death CAUTION It indicates that incorrect use of this unit may cause personal injury 2 or property damage 3 1 A severe injury refers to blindness injury burns hot or cold electrical shock bone fracture or poisoning that leaves after effects and requires hospitalization or extended out pa...

Page 4: ...oles must be incorporated in the fixed wiring Turn off main power supply before attempting any electrical work Make sure all power switches are off Failure to do so may cause electric shock Connect the connecting cables correctly If the connecting cables are connected wrongly electric parts may be damaged Check the earth wire that it is not broken or disconnected before installation Do not install...

Page 5: ...s or the specified parts Failure to do so may cause the unit to fall water leakage fire or electrical shock After the installation work ensure that there is no leakage of refrigerant gas If the refrigerant gas leaks out of the pipe into the room and is heated by fire or something else from a fan heater stove or gas range it causes generation of poisonous gas Make sure the equipment is properly ear...

Page 6: ... disturb neighbours This appliance must be connected to the main power supply by means of a circuit breaker depending on the place where the unit is installed Failure to do so may cause electrical shock Follow the instructions in this installation manual to arrange the drain pipe for proper drainage from the unit Ensure that drained water is discharged Improper drainage can result in water leakage...

Page 7: ... combination of the indoor units which are operated The information in this specifications table applies for the combinations with the catalogue For operation read the owner s manual packed with the indoor unit Equipment complying with IEC 61000 3 12 1 If the air conditioner is used in conditions other than the above the safety protection functions may be activated Example of indoor unit class RAS...

Page 8: ... to the wiring and piping lengths on the inside rather than the outside When using an air conditioner under low outside temperature conditions Outside temp 5 C or lower In COOL mode prepare a duct or wind shield so that it is not affected by the wind Necessary Space for Installation If you need to install the outdoor unit in a location where there are some obstructions or a wall secure sufficient ...

Page 9: ...hexagon wrench 1 Connect a charge hose Make sure that the Handle Hi of the gauge manifold valve is closed fully Connect the port of the gauge manifold valve and the service port Valve core Setting Pin using the charge hose NOTE If a control valve or charge valve is attached to the charge hose leak of R410A refrigerant can be avoided 2 Open the Handle Low of the gauge manifold valve fully then oper...

Page 10: ...r refrigerant leaks may be required depending on European or local legislation Insulation of the Refrigerant Pipes Insulate the refrigerant pipes for liquid and gas separately Heat proof bubble polyethylene Gas Leak Inspection Perform a gas leak inspection for the flare nut connections valve stem connection and service port cap without fail Use a leak detector exclusively manufactured for R410A Fl...

Page 11: ...it Connect the connecting cable to the terminal as identified by the matching numbers on the terminal block of the indoor and the outdoor unit 5 Fix the wiring connections for the power source and each indoor unit securely using a cord clamp 6 Attach the terminal cover and the valve cover Stripping Length of connecting cable for outdoor unit 55 5 5 30 1 2 3 5 5 30 55 L N Earth wire Earth wire Powe...

Page 12: ... or less Also there is a possibility to misjudge if the indoor temperature becomes too low by cooling operation In that case execute the cooling operation for per room and check if the connection is normal Gas Leak Inspection Refer to the Gas Leak Inspection on page 9 Test run 1 If you perform the test run in summer start running in the cooling mode first to decrease the temperature of the room th...

Page 13: ...lve at the liquid end 9 Make sure that the compound pressure gauge reading is 101 kPa 76 cmHg 10 Close the valve stem of the service valve at the gas end 11 The refrigerants collection operation is finished in maximum 10 minutes After the collection is finished promptly stop the operation of all the indoor unit There are cases that the compressor restarts 12 When you want to start over the operati...

Page 14: ...144 9 Moo 5 Bangkadi Industrial Park Tivanon Road Tambol Bangkadi Amphur Muang Pathumthani 12000 Thailand 1116691099 ...

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