Toshiba RAS-3M18U2AVG-E, RAS-2M10U2AVG-E, RAS-2M14U2AVG-E, RAS-2M18U2AVG-E User Manual

AIR CONDITIONER (MULTI-SPLIT TYPE)

Installation Manual

Outdoor Unit

Model name:

RAS-2M10U2AVG-E RAS-2M14U2AVG-E RAS-2M18U2AVG-E RAS-3M18U2AVG-E

R32

* NOTE: Descriptions about operations for the 3 indoor units in

this manual are not applicable to RAS-2M10U2AVG-E, RAS-2M14U2AVG-E and RAS-2M18U2AVG-E.

Installation Manual Outdoor Unit

English

Outdoor Unit Installation Manual

Contents

1 Precautions for safety ........................................................................................... 2

2 Installation / service tools ....................................................................................... 9

3 Speciﬁcations ................................................................................................... 9

4 Installation parts, accessories ................................................................................... 9

5 Installation of outdoor unit ..................................................................................... 10

6 Refrigerant piping .............................................................................................. 11

7 Electrical work ................................................................................................. 12

8 Grounding ..................................................................................................... 13

9 Test run ........................................................................................................13

10 Pump-down Operation ......................................................................................... 15

11 Troubleshooting ...............................................................................................15

12 Appendix ...................................................................................................... 16

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 the indoor units.

Outdoor Unit Installation Manual

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.



Warning indications on the air conditioner unit

This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.

WARNING

(Risk of ﬁ re)

In case that refrigerant type is R32, this unit uses a ﬂ ammable refrigerant. If refrigerant leaks and comes in contact with ﬁ re or heating part, it will create harmful gas and there is risk of ﬁ re.

Read the OWNER’S MANUAL carefully before operation.

Service personnel are required to carefully read the OWNER’S MANUAL and INSTALLATION MANUAL before operation.

Further information is available in the OWNER’S MANUAL, INSTALLATION MANUAL, and the like.

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

DANGER

WARNING

It indicates that incorrect use of this unit can result in a high possibility of severe injury(*1) or death.

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.

Outdoor Unit Installation Manual

For general public use

Power supply cord of parts of appliance for outdoor use shall be at least polychloroprene sheathed ﬂ exible cord (design H07RN-F) or cord designation 60245 IEC66 (1.5 mm² 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.

CAUTION

To disconnect the appliance from the main power supply

This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm in all poles.

CAUTION

NEW REFRIGERANT AIR CONDITIONER INSTALLATION

THIS AIR CONDITIONER USES THE NEW HFC REFRIGERANT (R32), WHICH DOES NOT DESTROY THE OZONE LAYER. R32 REFRIGERANT IS APT TO BE AFFECTED BY IMPURITIES SUCH AS WATER, OXIDIZING MEMBRANES, AND OILS BECAUSE THE PRESSURE OF R32 REFRIGERANT IS APPROX. 1.6 TIMES OF REFRIGERANT R22. AS WELL AS THE ADOPTION OF THIS NEW REFRIGERANT, REFRIGERATING MACHINE OIL HAS ALSO BEEN CHANGED. THEREFORE, DURING INSTALLATION WORK, BE SURE THAT WATER, DUST, FORMER REFRIGERANT, OR REFRIGERATING MACHINE OIL DOES NOT ENTER THE REFRIGERATION CYCLE OF A NEWREFRIGERANT AIR CONDITIONER. TO AVOID MIXING REFRIGERANT AND REFRIGERATING MACHINE OIL, THE SIZES OF CHARGING PORT CONNECTING SECTIONS ON THE MAIN UNIT ARE DIFFERENT FROM THOSE FOR THE CONVENTIONAL REFRIGERANT, AND DIFFERENT SIZE TOOLS ARE ALSO REQUIRED. FOR CONNECTING PIPES, USE NEW AND CLEAN PIPING MATERIALS WITH HIGH PRESSURE WITHSTAND CAPABILITIES, DESIGNED FOR R32 ONLY, AND ENSURE THAT WATER OR DUST DOES NOT ENTER. MOREOVER, DO NOT USE ANY EXISTING PIPING AS ITS PRESSURE WITHSTAND MAY BE INSUFFICIENT AND MAY CONTAIN IMPURITIES.

Outdoor Unit Installation Manual

DANGER

• THE MANUFACTURER SHALL NOT ASSUME ANY LIABILITY FOR THE DAMAGE CAUSED BY NOT OBSERVING THE DESCRIPTION OF THIS MANUAL.

• FOR USE BY QUALIFIED PERSONS ONLY.

• MEANS FOR DISCONNECTION FROM THE SUPPLY HAVING A CONTACT SEPARATION OF AT LEAST 3 MM IN ALL POLES 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 NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS. FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.

• TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEATERS, FURNACE, STOVES, ETC.

• WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN, BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT (R32) WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE. IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTANTLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS.

• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK, IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE, IT CAUSES GENERATION OF POISONOUS GAS.

• WHEN INSTALLING OR RE-INSTALLING THE AIR CONDITIONER, DO NOT INJECT AIR OR OTHER SUBSTANCES BESIDES THE DESIGNATED REFRIGERANT “R32” INTO THE REFRIGERATING CYCLE. IF AIR OR OTHER SUBSTANCES ARE MIXED, AN ABNORMAL PRESSURE CAN OCCUR IN THE REFRIGERATING CYCLE, AND THIS CAN CAUSE AN INJURY DUE TO A PIPE RUPTURE.

Outdoor Unit Installation Manual

WARNING

About the refrigerant

• This product contains ﬂ uorinated greenhouse gases.

• Do not vent gases to the atmosphere.

• The appliance shall be stored in a room without continuously operating ignition sources (for example: open ﬂ ames, an operating gas appliance or an operating electric heater).

• Do not pierce or burn refrigerant cycle parts.

• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.

• Be aware that refrigerants may not contain an odour.

• The refrigerant inside the unit is ﬂ ammable. If the refrigerant leaks in the room and comes in contact with ﬁ re from a burner, a heater, or a cooker, it may result in ﬁ re or the formation of a harmful gas.

• Turn off any combustible heating devices, ventilate the room, and contact the dealer from which you purchased the unit.

• Do not use the unit until a service person conﬁ rms that the portion from which the refrigerant leaked is repaired.

• When installing, relocating, or servicing the air conditioner, use only the speciﬁ ed refrigerant (R32) to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines.

• Pipe-work shall be protected from physical damage.

• Compliance with national gas regulations shall be observed.

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