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Installation Manual

Outdoor Unit

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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 (1.5 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.

1116691099_(01) EN.indd   2

1116691099_(01) EN.indd   2

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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