Toshiba RAV-SP240AT2-UL User Manual

AIR CONDITIONER (SPLIT TYPE)

Installation manual

Outdoor Unit

Model name:

RAV-SP240AT2-UL

For OUTDOOR USE only

Not accessible to the general public

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Installation manual Air conditioner

Manuel d'installation Climatiseur

(Split type)

(Type split)

English

Français

Outdoor Unit

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.

Installation Manual

ADOPTION OF NEW REFRIGERANT

This Air Conditioner uses R410A an environmentally friendly refrigerant.

Contents

1 DIMENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 ACCESSORY PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 SYSTEM REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4 PRECAUTIONS FOR SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER. . . . . . . . . . . . . . . . . . 7

6 REFRIGERANT PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7 ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

8 EVACUATE AND DEHYDRATE THE SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

9 FINISHING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

10 TEST RUN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

11 PERIODIC MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

12 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

13 UNIT PUMP DOWN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

14 POWER SAVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1-EN

–1–

Outdoor Unit

Refrigerant piping hole

3.7"(95)2.2"(55)

0.5"(12) 2.5"(64)

1 DIMENSION

Installation Manual

0.7"(17.5)14.4"(365)0.7"(17.5)

Air inlet port

4.7"(118)

2.9"(74) 5.0"(128)

5-drain hole

0.8"(20) ~ 3.5"(88) burring hole

22.9"(581)5.8"(148)

21.0"(534)

15.0"(380)

Air inlet port

3.0"(75)

Air outlet port

15.1"(383)

21.7"(550)2.0"(52)

Drain hole

1.3"(34)

6.7"(170)

( 1.0"(25) burring hole)

B legs

1.9"(48)

2.1"(54)

1.6"(40)

2.4"(60)7.9"(200)

1.8"(46)

A legs

2.8"(70)

23.6"(600)5.9"(150)

35.4"(900) 12.6"(320)

1.5"(39)

3.8"(96)

Refrigerant pipe connecting port

0.4"(9.5) flare

at liquid side

Refrigerant pipe connecting port

0.6"(15.9) flare at gas side

1.6"(40)

Conduit hole

( 0.9"(22) hole)

Refrigerant piping hole

0.5"(12)

Mounting bolt hole ( 0.5"(12) ~ 0.7"(17) U-shape hole)

Details of B legs

Mounting bolt hole ( 0.5"(12) ~ 0.7"(17) long hole)

Details of A legs

1.2"(30)

35.0"(890)

6.5"(165)

7"(178)

2.7"(68) 20.4"(518)

Mounting hole sold separately

(12 - 0.1"(3) emboss)

12.9"(327)

7"(178) 7"(178)2.4"(60)

Knockout for downward piping

Z views

0.3"(7)3.3"(83)

9.7"(247)

10.0"(255)

2.6"(65) 0.3"(7)

3.4"(85) 2.0"(50)

2.2"(56) 5.1"(130)

0.7"(18) 2.3"(58)

3.9"(99)

15.7"(400)

1.0"(24)

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2-EN

Outdoor Unit

2 ACCESSORY PARTS

Part name Q’ty Shape Usage

Installation manual 1 This manual (Hand this directly to the customer.)

Drain nipple 1

Waterproof rubber cap 5

Edge Guard 1 Protects piping against sharp edges

NOTE

Use drain nipple and waterproof rubber cap as necessary.

Installation Manual

3-EN

–3–

Outdoor Unit

3 SYSTEM REQUIREMENTS

Installation Manual

 Piping (Field supplied)

• Minimum refrigerant line length between the outdoor unit and indoor unit is 16.5” (5 m)

• Maximum pipe lengths

Allowable

pipe length

(ft (m))

Total length LIndoor unit:

164’1” (50) 98’5” (30) 98’5” (30)

Figure of Single

Outdoor Unit

Height difference

(Indoor-outdoor H)

(ft (m))

Upper

Indoor Unit

Outdoor unit:

Lower

Number of

bent portions

10 or less

Refrigerant charge

Length of refrigerant

pipe connected to

indoor/outdoor unit

16’5” - 98’5”

(5 - 30 m)

*98’5” - 164’1”

(30 - 50 m)

Additional refrigerant

None

Add 0.43 oz/ft (40 g/m) of refrigerant for piping that exceeds 98’5” (30 m) up to 164’1” (50 m).

* Caution during addition of refrigerant

Max. amount of additional refrigerant is 1.8 lbs (800 g). Charge the refrigerant accurately. Overcharging may cause serious trouble with the compressor.

* Minimum refrigerant pipe is 16’5”(5 m).

This may cause a malfunction of the compressor or other devices.

Metering Device is an electronic EXV (PMV) in outdoor unit.



Connecting power and control cables (Field supplied)

Refrigerant sizes

Liquid side Gas side

Outer

diameter

Ø3/8”

(9.5 mm)

Thickness

0.03”

(0.8 mm)

Outer

diameter

Ø5/8”

(15.9 mm)

Thickness

0.04”

(1.0 mm)

Flare nuts and flaring

• The flare nuts and flaring are different from those for the conventional refrigerant. Use the flare nuts supplied with the air conditioner or those for R410A.

• Before performing flaring, carefully read “REFRIGERANT PIPING”

Insulation

Both lines need to be insulated. Use a minimum 0.4” (10 mm) wall thickness.

• The main power is supplied to the outdoor unit. The field supplied connecting cables from the outdoor unit to the indoor unit consist for 4 wires and provides the power for the indoor unit as well as the communication signal between the outdoor and indoor unit.

• System interconnection wire size must be AWG12.

• Breaker must have a capacity specified in the following table.

• All wiring must comply with local electric codes and NEC (National Electric Code) or CEC (Canadian Electric Code).

Model RAV- SP240 Power supply 208/230 V, 60 Hz MCA 24 A MOCP (MAX Fuse/CB) 40 A Breaker 25 A System interconnection wires AWG12

MCA = Minimum Circuit Amps MOCP =Maximum Over Protection Device Amps.

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4-EN

Outdoor Unit

Installation Manual

4 PRECAUTIONS FOR SAFETY

Installing, starting up, and servicing air--conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.).

Only trained, qualified installers and service mechanics should install, start--up, and service this equipment. Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should be performed by trained service personnel. When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment. Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher nearby when brazing. Use care in handling, rigging, and setting bulky equipment. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements. Recognize safety information. This is the safety--alert symbol . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

WARNING

•

Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner. Perform installation work properly according to the Installation Manual.

Inappropriate installation may result in water leakage, electric shock or fire.

• Be sure to ground the equipment

Improper grounding may cause an electric shock. Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone wires.

• Turn off the main power supply switch or breaker before attempting any electrical work and maintenance.

Make sure all power switches are off. Failure to do so may cause electric shock. Use an exclusive power circuit for the air conditioner. Use the rated voltage.

• When moving the air conditioner for installation to another place, be very careful not to allow the specified

refrigerant (R410A) to become mixed with any other gaseous body into the refrigeration cycle.

If air or any other gas mixes with the refrigerant, the gas pressure in the refrigeration cycle will become abnormally high and it may result in the pipe bursting or personal injuries.

• Do not modify this unit by removing any of the safety guards or by by-passing any of the safety interlock

switches.

• Do not touch the intake or aluminium fins of the outdoor unit.

Doing so may result in injury.

• Tighten the flare nut with a torque wrench in the specified manner.

Excessive tightening of the flare nut may cause a crack in the flare nut after a long period, which may result in refrigerant leakage.

• Install the air conditioner securely in a location where the base can sustain the weight of the unit adequately.

• If refrigerant gas has leaked during the installation work, ventilate the room immediately.

If the leaked refrigerant gas comes in contact with fire, noxious gas may be generated.

• After the installation work, confirm that refrigerant gas does not leak.

If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may be generated.

• Electrical work must be performed by a qualified electrician in accordance with the NEC or local code. Make

sure the air conditioner uses an exclusive power supply.

An insufficient power supply capacity or inappropriate installation may cause fire.

• Use only the specified wiring during the unit installation. Ensure that all terminals are securely fixed, so

preventing any external forces having a negative effect on the terminals.

5-EN

–5–

Outdoor Unit

Installation Manual

WARNING

• When the air conditioner cannot cool or heat a room well, contact the dealer from whom you purchased the air conditioner as refrigerant leakage is considered as the cause. In the case of repair that requires refill of refrigerant, ask service personnel about details of the repair.

The refrigerant used in the air conditioner is harmless. Generally, the refrigerant does not leak. However, if the refrigerant leaks in a room and a heater or stove burner in the room catches fire, it may generate toxic gas. When you ask service personnel for repairing refrigerant leakage, confirm that the leakage portion has been completely repaired.

• Do not install the air conditioner in a location that may be subjected to a risk of exposure to a combustible

gas.

If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.

• Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the compressor is operated with the valve open and without the refrigerant pipe, the compressor sucks air and the refrigeration cycle is over pressurized, which may cause a burst or injury.

• When carrying out the pump-down work, shut down the compressor before disconnecting the refrigerant

pipe.

Disconnecting the refrigerant pipe with the service valve left open and with the compressor still operating will cause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in rupturing, injury, etc.

CAUTION

• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoor unit and result in injury.

• Wear heavy gloves during the installation work to avoid injury.

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation. Do not bury more than 36 in. (914 mm) of refrigerant pipe in the ground. If any section of pipe is buried, there must be a 6 in. (152 mm) vertical rise to the valve connections on the outdoor units. If more than the recommended length is buried, refrigerant may migrate to the cooler buried section during extended periods of system shutdown. This causes refrigerant slugging and could possibly damage the compressor at start-up.

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6-EN

Outdoor Unit

Installation Manual

5 INSTALLATION OF NEW REFRIGERANT

AIR CONDITIONER

CAUTION

New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER.

R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of R410A refrigerant is approx. 1.6 times as that of refrigerant R22. Accompanied with the adoption of the new refrigerant, the refrigerant oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerant oil does not enter the new type refrigerant R410A air conditioner cycle. To prevent mixing of refrigerant or refrigerant oil, the sizes of connecting sections of charging port on main unit and installation tools are different from those of the conventional refrigerant units. Accordingly, special tools are required for the new refrigerant (R410A) units. For connecting pipes, use new and clean piping materials with high pressure fittings made for R410A only, so that water and/or dust does not enter.

 Required Tools/Equipment and Precautions for Use

Prepare the tools and equipment listed in the following table before starting the installation work.

: R410A exclusive : Generic

Tools/equipment Use

Manifold gauge* Charging hose Gas leak detector Gas leak check Vacuum pump with backflow

prevention function Flare tool Flare machining of pipes Usable if dimensions are adjusted. Bender Bending pipes Refrigerant recovery equipment Refrigerant recovery Torque wrench Tightening flare nuts Ø1/2” (12.7 mm) and 5/8” (Ø15.9 mm) Pipe cutter Cutting pipes Brazing torch and nitrogen

cylinder Refrigerant charging scales Charging refrigerant 4 mm hexagon wrench Opening liquid valve

Vacuuming/charging refrigerant and operation check

Vacuum drying

Braze pipes

7-EN

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