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EN

EN

Outdoor Unit

Installation Manual

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  Precautions for safety

The manufacturer shall not assume any liability for the damage caused by not observing the 
description of this manual.
Be sure to read this installation manual carefully before installing.
The supplied CD-ROM contains the installation manual translated into many languages.
Recommend to the owner to perform maintenance periodically when using over long periods 
of time.
This appliance can be used by children aged from 8 years and above and persons with 
reduced physical, sensory or mental capabilities or lack of experience and knowledge if they 
have been given supervision or instruction concerning use of the appliance in a safe way and 
understand the hazards involved.

Children shall not play with the appliance. Cleaning and user maintenance shall not be made 
by children without supervision.

Be sure to follow the precautions provided here to avoid safety risks. The symbols and their 
meanings are shown below.

 DANGER

It indicates that incorrect use of this unit can result in a high possibility 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-patient treatment.

*2:  Personal injury means a slight accident, burn, or electrical shock which does not 

require admission or repeated hospital treatment.

*3:  Property damage means greater damage which affects assets or resources.

For general public use

Power supply cord of parts of appliance for outdoor use shall be at least polychloroprene 
sheathed flexible cord (design H07RN-F) or cord designation 60245 IEC66 (2.5 mm

2

 or 

more). (Shall be installed in accordance with national wiring regulations.)
This appliance is not intended for use by person (including children) with reduced physical, 
sensory or mental capabilities, or lack of experience and knowledge, unless they have been 
given supervision or instruction concerning use of the appliance by a person responsible for 
their safety.
Children should be supervised to ensure that they do not play with the appliance.

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Summary of Contents for RAS-3M26S3AV-A

Page 1: ... TYPE Installation Manual Outdoor Unit Model name RAS 5M34S3AV A RAS 4M27S3AV A RAS 3M26S3AV A NOTE Descriptions about operations for the E unit in this manual are not applicable to RAS 4M27S3AV A Descriptions about operations for the D unit and the E unit in this manual are not applicable to RAS 3M26S3AV A 1116791101 1116791101_EN indd c1 1116791101_EN indd c1 2 3 58 BE 2 20 PM 2 3 58 BE 2 20 PM ...

Page 2: ...evice and Outdoor Unit 11 10 Test run 14 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 installation manual accompanying t...

Page 3: ...ING 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 patient treatment 2 Personal injury me...

Page 4: ...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 near concentrations of combustible gas...

Page 5: ...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 earthed Do not connect the earth wire t...

Page 6: ... 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 causing water damage to furniture Tigh...

Page 7: ...ditioner 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...

Page 8: ...ioner 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 space as shown in the figure below The cooling heating effect may be reduced by 10 Upper side vi...

Page 9: ... 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 operate the vacuum pump Loosen the flare nut of the at the gas end a little to make sure that air is taken in then tighten the nut If you find air is not taken in make sure that the charg...

Page 10: ...rming Additional Installation of an Indoor Unit 1 Collect refrigerant from the outdoor unit 2 Turn off the circuit breaker 3 Perform additional installation referring to the procedure from Refrigerant Piping Connection on the previous page Pump down Operation Recovering refrigerant CAUTION Since the forcible running for collecting refrigerant stops automatically after 10 minutes finish collecting ...

Page 11: ... terminal numbers on the terminal block of each unit Incorrect connection may cause a failure 1 Detach the front panel from the outdoor unit 2 Remove the cord clamp 3 Connect the wires for the power source and each indoor unit Connect the connecting cable to the terminal as identified by the matching numbers on the terminal block of the indoor and the outdoor unit 4 Fix the wiring connections for ...

Page 12: ... connecting wire is incorrect electric parts may be damaged Ensure that all terminals are securely fixed so preventing any external forces having a negative effect on the terminals Do not connect the DRED mains cable to the terminal block of the outdoor unit Power supply and Indoor Outdoor connecting Improper installation may result in fire Connect the demand connecting wires and relay connector R...

Page 13: ...02 CN100 CN105 Locally procured Power supply Indoor A E unit Connecting WARNING Do not connect the DRED mains cable to the terminal block of the outdoor unit Power supply and Indoor Outdoor connecting Improper installation may result in fire For the power supply of the DRED prepare exclusive power supply separated from that of the outdoor unit WARNING Connect the wire 4 wire with a round terminal ...

Page 14: ...he demand response event i e cooling or heating Wiring procedure 1 Securely fasten the demand connecting wires with the cord clamp located at the upper portion of the terminal block so that no external force is applied to the terminal The demand connecting wires having a relay connector RJ45 should be wired in such a manner as to prevent water intrusion into the relay connector 2 Bundle the demand...

Page 15: ...in units B C and E Trouble in units B D and E Trouble in units C D and E Trouble in units A B C and D Trouble in units A B C and E Trouble in units A B D and E Trouble in units A C D and E Trouble in units B C D and E Trouble in all units Service valve stays closed 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 c...

Page 16: ...Moo 5 Bangkadi Industrial Park Tivanon Road Tambol Bangkadi Amphur Muang Pathumthani 12000 Thailand 1116791001_EN indd 15 01 22 15 10 52 AM 1116791101_EN indd 15 1116791101_EN indd 15 2 3 58 BE 2 20 PM 2 3 58 BE 2 20 PM ...

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