Toshiba RAV-SM1400UT-E, RAV-SM1100UT-E User Manual

FILE NO. A03-002

SERVICE MANUAL

<OWNER’S MANUAL/INSTALLATION MANUAL>

SPLIT TYPE

RAV-SM1100AT-E/RAV-SM1400AT-E RAV-SM1100UT-E/RAV-SM1400UT-E

R410A

PRINTED IN JAPAN, Aug., 2003 ToMo

RAV-SM1100AT-E RAV-SM1400AT-E

RAV-SM1100AT-E RAV-SM1400AT-E

ACCESSORIES

ADOPTION OF NEW REFRIGERANT

This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer.

WARNING

Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a service person do it. Do not attempt it yourself. The cleaning diagram for the air filter is there for the service person, and not for the customer.

Outdoor Unit –––––––––––––––––––––––– RAV-SM1100AT-E/RAV-SM1400AT-E

INSTALLATION MANUAL

1	PRECAUTIONS FOR SAFETY ....................................	1	5	EVACUATING ...............................................................	9
2	ACCESSORY AND REFRIGERANT ...........................	3	6	ELECTRICAL WORK .................................................	11
3	SELECTION OF INSTALLATION ................................	3	7	FINAL INSTALLATION CHECKS ..............................	12
4	REFRIGERANT PIPING ..............................................	7

RAV-SM1100AT-E RAV-SM1400AT-E

Indoor Unit ––––––––––––––––––––––– RAV-SM1100UT-E/RAV-SM1400UT-E

4-Way Air Discharge Cassette Type

OWNER’S MANUAL

ACCESSORIES (SOLD SEPARATELY) ...........................	14
PRECAUTIONS FOR SAFETY ........................................	14
PARTS NAME ...................................................................	16
PARTS NAME OF REMOTE CONTROLLER ...................	17
CORRECT USAGE ...........................................................	19
AUTOMATIC OPERATION (Auto Changeover) ..............	20

ADJUSTMENT OF WIND DIRECTIONd ..........................	21
TIMER OPERATION .........................................................	22
MAINTENANCE ................................................................	24
AIR CONDITIONER OPERATIONS AND PERFORMANCE . 25
RE-INSTALLATION ..........................................................	26
TROUBLES AND CAUSES ..............................................	26

4-Way Air Discharge Cassette Type

INSTALLATION MANUAL

Accessory parts and Parts to be procured locally ......		28	5
1	PRECAUTIONS FOR SAFETY ..................................	29	6
2	SELECTION OF INSTALLATION PLACE .................	31	7
3	DRAIN PIPING WORK ...............................................	36	8
4	REFRIGERANT PIPING ............................................	38	9

EVACUATING .............................................................	39
ELECTRICAL WORK .................................................	41
TEST RUN .................................................................	44
TROUBLESHOOTING ...............................................	45
MAINTENANCE .........................................................	46

Accessories –––––––––––––––––––––––––––––––––––––––––––––––––––––

OWNER’S MANUAL

RAV-SM1100AT-E RAV-SM1400AT-E

REMOTE CONTROLLER FOR AIR CONDITIONER (SPLIT TYPE)
<Wireless Type>	TCB-AX21U (W)-E ............................................................	48
WEEKLY TIMER FOR AIR CONDITIONER (SPLIT TYPE)
<Program Weekly Timer Type>	RBC-EXW21E ...................................................................	56
REMOTE CONTROLLER FOR AIR CONDITIONER
<Simple Operation Type>	RBC-AS21E ......................................................................	62
INSTALLATION MANUAL
Ceiling Panel	RBC-U21PG (W)-E ............................................................	65
Standard Remote Controller	RBC-AMT21E ....................................................................	67
Simple Remote Controller	RBC-AS21E ......................................................................	68
Program Weekly Timer	RBC-EXW21E ...................................................................	69
Remote sensor	TCB-TC21LE .....................................................................	70
Drain-up Kit for Concealed Duct Type Indoor Unit	TCB-DP11BE ....................................................................	71
Remote Controller Wireless Kit	TCB-AX21U (W)-E ............................................................	72
Network Adapter for Air Conditioner (Use for Indoor Unit Only)
	TCB-PCNT20E ..................................................................	73

ACCESSORIES

RAV-SM1100AT-E RAV-SM1400AT-E

1 PRECAUTIONS FOR SAFETY

•Ensure that all Local, National and International regulations are satisfied.

•Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.

•The precautions described below include the important items regarding safety. Observe them without fail.

•After the installation work, perform a trial operation to check for any problem.

Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.

•Turn off the main power supply switch (or breaker) before the unit maintenance.

•Ask the customer to keep the Installation Manual together with the Owner’s Manual.

CAUTION New Refrigerant Air Conditioner Installation

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

The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle.

To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit and installation tools are charged from those for the conventional refrigerant.

Accordingly the exclusive tools are required for the new refrigerant (R410A).

For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance force and impurity in it.

CAUTION To Disconnect the Appliance from Main Power Supply.

This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.

The installation fuse (25A D type ) must be used for the power supply line of this conditioner.

WARNING

•Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner.

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

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

Make sure all power switches are off. Failure to do so may cause electric shock.

•Connect the connecting cable correctly.

If the connecting cable is connected in a wrong way, electric parts may be damaged.

•When moving the air conditioner for the installation into another place, be very careful not to enter any gaseous matter other than the specified refrigerant 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 may resultingly causes pipe burst and injuries on persons.

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

•Exposure of unit to water or other moisture before installation may cause a short-circuit of electrical parts.

Do not store it in a wet basement or expose to rain or water.

1

		SM1100AT-RAV -E	SM1400AT-RAV -E
	• After unpacking the unit, examine it carefully if there are possible damage.
	• Do not install in a place that might increase the vibration of the unit.
	• To avoid personal injury (with sharp edges), be careful when handling parts.
	• Perform installation work properly according to the Installation Manual.
	Inappropriate installation may result in water leakage, electric shock or fire.
	• When the air conditioner is installed in a small room, provide appropriate measures to
	ensure that the concentration of refrigerant leakage occur in the room does not exceed the
	critical level.
	• Install the air conditioner securely in a location where the base can sustain the weight
	adequately.
	• Perform the specified installation work to guard against an earthquake.
	If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.
	• 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 generate.
	• 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
	might generate.
	• Electrical work must be performed by a qualified electrician in accordance with the Installa-
	tion Manual. Make sure the air conditioner uses an exclusive power supply.
	An insufficient power supply capacity or inappropriate installation may cause fire.
	• Use the specified cables for wiring connect the terminals securely fix. To prevent external
	forces applied to the terminals from affecting the terminals.
	• Be sure to provide grounding.
	Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.
	• Conform to the regulations of the local electric company when wiring the power supply.
	Inappropriate grounding may cause electric shock.
	• Do not install the air conditioner in a location subject to a risk of exposure to a combustible
	gas.
	If a combustible gas leaks, and stays around the unit, a fire may occur.

Required tools for installation work

1)	Philips screw driver	9)	Thermometer
2)	Hole core drill (65 mm)	10)	Mega-tester
3)	Spanner	11)	Electro circuit tester
4)	Pipe cutter	12)	Hexagonal wrench
5)	Knife	13)	Flare tool
6)	Reamer	14)	Pipe bender
7)	Gas leak detector	15)	Level vial
8)	Tape measure	16)	Metal saw

R410A (Special requirement)

17)Gauge manifold

(Charge hose : R410A special requirement)

18)Vacuum pump

(Charge hose : R410A special requirement)

19)Torque wrench

1/4 (17 mm) 16 N•m (1.6 kgf•m) 3/8 (22 mm) 42 N•m (4.2 kgf•m) 1/2 (26 mm) 55 N•m (5.5 kgf•m)

5/8 (15.9 mm) 120 N•m (12.0 kgf•m)

20)Copper pipe gauge adjusting projection margin

21)Vacuum pump adapter

2

RAV-SM1100AT-E RAV-SM1400AT-E

2 ACCESSORY AND REFRIGERANT

Accessory and Installation Parts

1	3
Outdoor unit	Protective bush
Installation manual x 1
Drain nipple
2	4
	Guard material for
Waterproof rubber cap	passage part

Refrigerant Piping

•Piping kit used for the conventional refrigerant cannot be used.

•Use copper pipe with 0.8 mm or more thickness for Ø9.5 mm.

Use copper pipe with 1.0 mm or more thickness for Ø15.9 mm.

•Flare nut and flare works are also different from those of the conventional refrigerant. Take out the flare nut attached to the main unit of the air conditioner, and use it.

3 SELECTION OF INSTALLATION

Before installation

Be careful to the following items before installation.

Length of refrigerant pipe

Length of refrigerant pipe

connected to Item indoor/outdoor unit

	20m or shorter	Addition of refrigerant is
		unnecessary at the local site.

<Addition of refrigerant>

*21m to 50m Add 40g of refrigerant for every

1m of pipe which exceeds 20m.

Air purge

•For air purge, use a vacuum pump.

•Do not use refrigerant charged in the outdoor unit for air purge. (The refrigerant for air purge is not contained in the outdoor unit.)

Electrical cabling

•Be sure to fix the power cables and indoor/outdoor connecting cables with clamps so that they do not contact with the cabinet, etc.

*Caution at addition of refrigerant

When the total length of refrigerant pipe exceeds 20m, add 40g/m of refrigerant and the maximum total length of pipe is 50m.

(Max. amount of additional refrigerant is 1200g.)

Charge the refrigerant accurately. Overcharge may cause a serious trouble of compressor.

3

Installation Place

•A place which provides a specified space around the outdoor unit.

•A place where the operation noise and discharged air are not given to your neighbors.

•A place that is not exposed to a strong wind.

•A place that does not block a passage.

•When the outdoor unit is installed in an elevated position, be sure to secure its feet.

•There must be sufficient space for carrying in the unit.

•A place where the drain water does not make any problem.

CAUTION

1.Install the outdoor unit at a place where discharge air is not blocked.

2.When an outdoor unit is installed in a place that is always exposed to a strong wind like a coast or on a high storey of a building, secure a normal fan operation by using a duct or a wind shield.

3.When installing the outdoor unit in a place that is constantly exposed to a strong wind such as the upper stairs or rooftop of a building, apply the windproof measures referring to the following examples.

1)Install the unit so that its

discharge port faces to the 500 wall of the building. Keep a

distance 500 mm or more

between the unit and the

wall surface.

2)Supposing the wind direction during the operation season of the air conditioner, install the unit so that the discharge port is set at right angle to the wind direction.

Strong wind

Strong wind

4.Installation in the following places may result in some troubles. Do not install the unit in such places below.

•A place full of machine oil.

•A place full of sulphuric gas.

•A place where high-frequency radio waves are likely to be generated as from audio quipment, welders, and medical equipment.

Necessary Space for Installation

Obstacle at rear side

<Upper side is free>

1. Single unit installation

150 or more

2. Obstacles at both right and left sides.

200 ormore	obstacle should be
	The height of the
	lower than the height
	of the outdoor unit.
150	300
or more	or more

3. Serial installation of two or more units

200 or more

150	300	300	300
or more	or more	or more	or more

The height of the obstacle should be lower than the height of the outdoor unit.

<Obstacle also at the upper side>

500 ormore	150
	or more

Obstacle at front side

<Upper side is free>

1.	Single unitIn installation								500 moreor
2.	Serial installation of two or more units

1000 or more

RAV-SM1100AT-E RAV-SM1400AT-E

4

SM1100AT-RAV -E SM1400AT-RAV -E	3 SELECTION OF INSTALLATION
		1000 moreor
	<Obstacle also at the upper side>
	1000
	or more

Obstacles at both front and rear sides

Open the upper side and both right and left sides. The height of obstacle at both front and rear side, should be lower than the height of the outdoor unit.

<Standard installation>

1. Single unit installation

1000 150 or more or more

2. Serial installation of two or more units

		200 or more
300	300	1000 moreor
or more	or more

Installation of Outdoor Unit

•Before installation, check strength and horizontality of the base so that abnormal sound does not generate.

•According to the following base diagram, fix the base firmly with the anchor bolts.

(Anchor bolt, nut: M10 x 4 pairs)

		150		600	150
					430
			Drain hole		40
400	365	Knockout hole		Drain nipple mounting hole

Set the out margin of the anchor bolt to 15mm or less.

15 or less

•In case of drainning through the drain hose, attach the following drain nipple and the waterproof rubber cap, and use the drain hose (Inner diam.: 16mm) sold on the market. And also seal the screws securely with silicone material, etc. so that water does not drop down. Some conditions may cause dewing or dripping of water.

Serial installation at front and rear sides

Open the upper side and both right and left sides. The height of obstacle at both front and rear sides should be lower than the height of the outdoor unit.

<Standard installation>

1000	300					1500			2000				200
or more	or more						or more				or more		or more

Drain nipple

Waterproof rubber cap

Knockout hole

Open

Waterproof rubber cap

Drain nipple

•When there is a possibility of freezing of drain at the cold district or a snowfall area, be careful for drainage ability of drain. The drainage ability increases when a knockout hole on the base plate is opened. (Open the knockout hole to outside using a screwdriver, etc.)

5

Optional Installation Parts (Local Procure)				Knockout of Pipe Cover
		Parts name	Q’ty
A	Refrigerant piping		Each one
	Liquid side	: Ø9.5 mm
	Gas side	: Ø15.9 mm
B	Pipe insulating material		1
	(polyethylene foam, 6 mm thick)
				Rear direction
C	Putty, PVC tapes		Each one

Refrigerant Piping Connection

	Pipe cover
	Side direction
Front direction	Down direction

CAUTION

TAKE NOTICE THESE IMPORTANT

4 POINTS BELOW FOR PIPING WORK

1.Keep dust and moisture away from inside the connecting pipes.

2.Tightly connect the connection between pipes and the unit.

3.Evacuate the air in the connecting pipes using VACUUM PUMP.

4.Check gas leak at connected points.

<Piping connection>

Liquid side		Gas side
Outer diameter	Thickness	Outer diameter	Thickness
Ø9.5	0.8	Ø15.9	1.0

For Reference

If a heating operation would be continuously performed for a long time under the condition that the outdoor temperature is 0°C or lower, draining of defrosted water may be difficult due to freezing of the bottom plate, resulting in a trouble of the cabinet or fan.

It is recommended to procure an anti-freeze heater locally for a safety installation of the air conditioner.

For details, contact the dealer.

Knockout procedure

•The indoor/outdoor connecting pipes can be connected to 4 directions.

Take off the knockout part of the pipe cover in which pipes or wires pass through the base plate.

•As shown in the figure, do not remove the pipe cover from the cabinet so that the knockout hole can be easily punched. To knock out, it is easily taken off by hands by punching a position at the lower side of 3 connected parts with screwdriver along the guide line.

•After marking the knockout hole, remove the burr and mount the attached protective bush and guard material for pass-through part in order to protect pipes and wires.

After connecting the pipes, be sure to mount the pipe cover. The pipe cover is easily mounted by cutting off the slit at the lower part of the pipe cover.

6

3 SELECTION OF INSTALLATION

How to remove the front panel

1.Remove screws of the front panel.

2.Pull the front panel downward.

Removing the front panel, the electric parts appear at the front side.

•The metal pipes are attachable to the piping holes. If the size of the used power pipe does not match with the hole, adjust the hole size to match with pipe size.

•Be sure to fix the power cable and indoor/outdoor connecting cable with bundling band sold on the market so that they do not make contact with the compressor and discharge pipe.

(Temperature of the compressor and discharge pipe becomes high.)

In order to avoid the force applied to on the connecting section, be sure to fix the cables to the cord clamps provided on the pipe valve fixing plate and the electric parts box.

Electric parts box

Front panel

Pipe valve

fixing plate

Piping

hole

Cord clamp

4 REFRIGERANT PIPING

Pipe Forming/End Positioning

Flaring

1. Cut the pipe with a pipe cutter.

90˚

Obliquity Roughness

Warp

*In case of flaring for R410A with the conventional flare tool, pull it out approx. 0.5 mm more than that of R22 to adjust to the specified flare size. The copper pipe gauge is useful for adjusting projection margin size.

A

2. Insert a flare nut into the pipe, and flare the pipe.
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly manufactured
for R410A are recommended.
However, the conventional tools can be used by
adjusting projection margin								B
of the copper pipe.

• Projection margin in flaring : B (Unit : mm)

Rigid (Clutch type)

	Outer dia.	R410A tool used		Conventional tool used
	of copper
		R410A	R22	R410A	R22
	pipe
	6.4	0 to 0.5	(Same as left)	1.0 to 1.5	0.5 to 1.0
	9.5	0 to 0.5	(Same as left)	1.0 to 1.5	0.5 to 1.0
	12.7	0 to 0.5	(Same as left)	1.0 to 1.5	0.5 to 1.0
	15.9	0 to 0.5	(Same as left)	1.0 to 1.5	0.5 to 1.0

• Flaring size : A (Unit : mm)

		A	+0
	Outer dia. of copper pipe		- 0.4
		R410A	R22
	6.4	9.1	9.0
	9.5	13.2	13.0
	12.7	16.6	16.2
	15.9	19.7	19.4

Imperial (Wing nut type)

Outer dia. of copper pipe	R410A	R22
6.4	1.5 to 2.0	1.0 to 1.5
9.5	1.5 to 2.0	1.0 to 1.5
12.7	2.0 to 2.5	1.5 to 2.0
15.9	2.0 to 2.5	1.5 to 2.0

7

Tightening of Connecting Part

	(Unit: N•m)
Outer dia. of copper pipe	Tightening torque
6.4 mm (diam.)	14 to 18 (1.4 to 1.8 kgf•m)
9.5 mm (diam.)	33 to 42 (3.3 to 4.2 kgf•m)
12.7 mm (diam.)	50 to 62 (5.0 to 6.2 kgf•m)
15.9 mm (diam.)	63 to 77 (6.3 to 7.7 kgf•m)

Flare at

indoor unit side

Flare at

outdoor unit side

•Align the centers of the connecting pipes and tighten the flare nut strong as far as possible with your fingers.

Then fix the nut with a spanner and tighten it with torque wrench as shown in the figure.

REQUIREMENT

1.Do not put the spanner on the cap. The valve may be broken.

2.If applying excessive torque, the nut may be broken according to some installation conditions.

•After the installation work, be sure to check gas leak of connecting part of the pipes with nitrogen.

Cover

Half union or packed valve		Flare nut
Externally		Internally
threaded side		threaded side
Fix with spanner.	Tighten with torque wrench.

•As shown in the figure, be sure to use a double spanner to loosen or tighten the flare nut of the valve at gas side. If using a single spanner, the nut cannot be tightened with necessary tightening torque.

On the contrary, use a single spanner to loosen or tighten the flare nut of the valve at liquid side.

Cover

Cap

Piping valve

Loosened	Tightened
	Flare nut

Valve at gas side

•Pressure of R410A is higher than that of R22 (Approx. 1.6 times). Therefore, using a torque wrench, tighten the flare pipe connecting sections which connect the indoor/outdoor units at the specified tightening torque. Incomplete connections may cause not only a gas leak, but also a trouble of the refrigeration cycle.

Do not apply refrigerating machine oil to the flared surface.

8

5 EVACUATING

Air Purge

This air conditioner can be installed up to the connecting pipe length and height difference in the following table.

	Max. connecting	Height difference (m)		Hexagonal wrench size
	pipe length (m)	Outdoor unit at upper side	Outdoor unit at lower side
	50	30	15	4 mm

With respect to the preservation of terrestrial environment, adopt “Vacuum pump” for air purge (Evacuate air in the connecting pipes) when installing the unit.

•Do not discharge the refrigerant gas to the atmosphere to preserve the terrestrial environment.

•Use a vacuum pump to discharge the air (nitrogen, etc.) remained in the set. If the air remains, the capacity may decrease.

For the vacuum pump, be sure to use one with backflow preventer so that the oil in the pump does not backflow into the pipe of the air conditioner when the pump stops. (If oil in the vacuum pump is put in an air conditioner including R410A, it may cause trouble on the refrigeration cycle.)

Vacuum pump

As shown in the right figure, connect the charge hose after the manifold valve are closed completely.

Attach the connecting port of the charge hose with a projection to push the valve core (setting pin) to the charge port of the set.

Open handle Low fully.

Turn ON the vacuum pump (*1)

Loosen the flare nut of the packed valve (Gas side) a little to check the air passes through. (*2)

Tighten the flare nut again.

Execute vacuuming until the compound pressure gauge indicates –101kPa (–76cmHg). (*1)

Close handle Low completely.

Turn OFF the vacuum pump.

Leave the vacuum pump as it is for 1 or 2 minutes, and check the indicator of the compound pressure gauge does not return.

Open fully the valve stem or the valve handle. (First, at liquid side, then gas side)

Disconnect the charge hose from the charge port.

Tighten valve and caps of the charge port surely.

9

Compound pressure gauge	Pressure gauge
–101kPa
(–76cmHg)	Manifold valve

Handle Lo

Charge hose (For R410A only)

Service port

(Valve core (Setting pin))

Handle Hi

(Keep fully closed)

Charge hose

(For R410A only)

Vacuum pump adapter

for counter-flow prevention (For R410A only)

Vacuum

pump

Packed valve at gas side

How to open the valve

Valve unit

Handle position

Handle

Closed completely

Opened fully

*1. Use the vacuum pump, vacuum pump adapters, and gauge manifold referring to the manuals attached to each tool before using them. For the vacuum pump, check oil is filled up to the specified line of the oil gauge.

*2. While the air is purged, check again that the connecting port of charge hose, which has a projection to push the valve core, is firmly connected to the charge port.

Valve handling precautions

	Handle
	Pull out the handle and
	using cutting pliers, etc.
	turn it counterclockwise
Charge port	by 90˚. (Open fully)
	Flare nut

How to close the valve

Valve unit

Push in handle and turn clockwise by 90˚.

(Close fully)

Charge port

Flare nut

•Open the valve stem or the handle until it strikes the stopper. It is unnecessary to apply further force.

•Securely tighten the cap with a torque wrench.

•Cap tightening torque

Ø6.4 14 to 18N•m (1.4 to 1.8kgf•m)

Ø9.5 33 to 42N•m (3.3 to 4.2kgf•m)

Valve size

Ø12.7 33 to 42N•m (3.3 to 4.2kgf•m)

Ø15.9 20 to 25N•m (2.0 to 2.5kgf•m)

Charge port

14 to 18N•m (1.4 to 1.8kgf•m)

10

6 ELECTRICAL WORK

For the air conditioner that has no power cable, connect a power cable as mentioned below.

Model	RAV-	SM1100AT-E	SM1400AT-E
Power supply		220 – 240 V
		Single phase 50 Hz
Maximum running current		22.0 A		22.8 A
Installation fuse rating		25 A (D type		)
Power cable		H07 RN-F or 245 IEC 66
		(2.5 mm2 or more)

CAUTION

•Wrong wiring may cause a burn-out to some electrical parts.

•Be sure to use the cord clamps attached to the product.

•Do not damage or scratch the conductive core and inner insulator of power and inter-connecting cables when peeling them.

•Be sure to comply with local regulations of the cable from outdoor unit to indoor unit.

(wire size and cabling method etc.)

•Use the power and Inter-connecting cables with specified thickness, specified type and protective devices required.

How to wire

1.Connect the connecting cable to the terminal as identified with their respective numbers on the terminal block of indoor and outdoor unit.

H07 RN-F or 245 IEC 66 (1.0 mm2 or more)

2.When connecting the connecting cable to the outdoor unit terminal, prevent water coming in the outdoor unit.

3.Insulate the unsheathed cords (conductors) with electrical insulation tape. Process them so that they do not touch any electrical or metal parts.

4.For inter connecting cable, do not use a wire jointed to another on the way.

Use wires long enough to cover the entire length.

Power supply	To Indoor unit
terminal block	terminal block
L N	1	2	3
	Earth screw
Power cable	Connecting cable

Stripping length power cord and connecting cable

L N	10	10	1 2 3
10			10

50	40
40	30

Earth line	Earth line	(mm)
Power cable	Connecting
	cable

CAUTION

•The installation fuse (25A D type ) must be used for the power supply line of this air conditioner.

•Incorrect/incomplete wiring might cause an electrical fire or smoke.

•Prepare the exclusive power supply for the air conditioner.

•This product can be connected to the mains. Connection to the fixed wiring :

A switch which disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring.

11

7 FINAL INSTALLATION CHECKS

Check and Test Operation

For R410A, use the leak detector exclusively manufactured for HFC refrigerant (R410A, R134a, etc.).

*The conventional leak detector for HCFC refrigerant (R22, etc.) cannot be used because its sensitivity for HFC refrigerant lowers to approx. 1/40.

•Pressure of R410A is approx. 1.6 times higher than that of R22.

If installation work is incompletely finished, a gas leakage may occur when pressure rises during operation. Therefore, be sure to test the piping connections for leakage.

•Check gas leakage at the flare nut connections, valve stem cap connections and service port cap fittings with a leak detector or soap water.

CAUTION

When the remote controller is used for the first time, it accepts an operation approx. 5 minutes after the power supply has been turned on.

It is not a trouble, but is because the setup of the remote controller is being checked.

For the second power-ON time and after, approx. 1 munute is required to start the operation by the remote controller.

Useful Functions

Self-Diagnosis by LED Indication

In addition to the code checking by remote controller of the indoor unit, troubles of the outdoor unit can be diagnosed by LED indications on the cycle control P.C. board of the outdoor unit. Utilize them for various checks. For the check by remote controller of the indoor unit, refer to the Installation Manual of the indoor unit.

Before a check, confirm each bit of the DIP switch is set to OFF position.

LED indication and code checking

		Cycle control P.C. board
	LED indication		LED indication			Cause
		D800	D801	D802	D803
		¡	l	l	l	Heat exchanger sensor (TE) error
		l	l	¡	l	Suction sensor (TS) error
		¡	¡	l	l	Discharge sensor (TD) error
		l	¡	l	¡	High-pressure protection error
	D800 ¡ : Red	l	¡	l	l	Outdoor temperature sensor (TO) error
		¡	¡	¡	l	DC outside fan error
	D801 ¡ : Yellow
	D802 ¡ : Yellow	¡	l	l	¡	Communication error between IPDU (Abnormal stop)
	D803 ¡ : Yellow
		l	¡	l	¡	High-pressure release operation
	¥ : Rapid flash	l	¡	¡	l	Discharge temp. error
	l : Go off	¡	¡	l	¡	EEPROM error
	¡ : Go on
		l	l	¡	¡	Communication error between IPDU (No abnormal stop)
		¥	l	l	l	G-Tr short-circuit protection
		l	¥	l	l	Detect circuit error
		¥	¥	l	l	Current sensor error
		l	l	¥	l	Comp. lock error
		¥	l	¥	l	Comp. break down

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7 FINAL INSTALLATION CHECKS

Installation/Servicing Tools

Changes in the product and components

In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged accidentally, service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)

•In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)

New tools for R410A

New tools for R410A	Applicable to R22 model		Changes
	×		As pressure is high, it is impossible to measure by means of conventional
Gauge manifold			gauge. In order to prevent any other refrigerant from being charged, each
			port diameter is changed.
	×		In order to increase pressure resisting strength, hose materials and port
Charge hose			size are changed (to 1/2 UNF 20 threads per inch).
			When purchasing a charge hose, be sure to check the port size.
Electronic balance	¡		As pressure is high and gasification speed is fast, it is difficult to read the
for refrigerant charging			indicated value by means of charging cylinder, as air bubbles occur.
Torque wrench	×		The size of opposite sides of flare nuts have been increased. Incidentally,
(nominal diam. 1/2, 5/8)			a common wrench is used for nominal diameters 1/4 and 3/8.
Flare tool	¡		By increasing the clamp bar’s receiving hole, strength of spring in the tool
(clutch type)			has been improved.
Gauge for projection adjustment	—	—	Used when flare is made with using conventional flare tool.
			Connected to the conventional vacuum pump. It is necessary to use an
			adapter to prevent vacuum pump oil from flowing back to the charge hose.
Vacuum pump adapter	¡		The charge hose connecting part has two ports-one for conventional
			refrigerant (7/16 UNF 20 threads per inch) and one for R410A.
			If the vacuum pump oil (mineral) mixes with R410A a sludge may occur
			and damage the equipment.
Gas leakage detector	×		Exclusive for HFC refrigerant.

•Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R410A) and protector coating in the U,S.’s ARI specified rose color (ARI color code: PMS 507).

•Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to the charge hose’s port size.

13

ACCESSORIES (SOLD SEPARATELY)

Remote controller		Standard 4-way cassette panel optional parts

PRECAUTIONS FOR SAFETY

WARNING

WARNINGS ABOUT INSTALLATION

• Make sure to ask the qualified installation professional in electric work to install the air conditioner.

If the air conditioner is inappropriate installed by yourself, it may cause water leak, electric shock, fire, and so on.

•Be sure to provide grounding.

Do not connect ground wires to gas pipes, water pipes, lightning rods or ground

wires for telephone cables.

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAINS SUPPLY

This appliance must be connected to the mains by means of a switch with a contact separation of at least 3 mm.

The installation fuse (25A D type ) must be used for the power supply line of this conditioner.

WARNINGS ABOUR OPERATION

• Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a service person do it. Do not attempt it yourself. The cleaning diagram for the air filter is there for the service person, and not for the customer.

•Avoid cooling the room too strong or exposing the human body to cool breeze for a long time as it is bad for the health.

•When you notice something abnormal with the air conditioner (smells like some-

thing scorching, poor cooling, etc.), immediately turn off the main switch, the circuit breaker, from the mains to stop the air conditioner, and contact the dealer.

If the air conditioner is continuously operated with something abnormal, it may cause machine failure, electric shock, fire, and so on.

WARNINGS ABOUT MOVEMENT AND REPAIR

• Do not move or repair any unit by yourself.

Since there is high voltage inside the unit, you may get electric shock when removing the cover and main unit.

• Whenever the air conditioner needs repair, make sure to ask the dealer to do it. If it is repaired imperfectly, it may cause electric shock or fire.

• When moving the air conditioner for re-installing at another place, ask the dealer to do it. If it is imperfectly installed, it may cause electric shock or fire.

RAV-SM1100AT-E RAV-SM1400AT-E

14

RAV-SM1100AT-E RAV-SM1400AT-E

CAUTION

CAUTIONS ABOUT INSTALLATION

•Be sure to confirm the following cautions.

•Certainly lay the drain hose for perfect draining.

Bad drainage may cause flooding in the house and getting furniture wet.

•Make sure to connect the air conditioner to an exclusive power supply of the rated voltage, otherwise the unit may break down or cause a fire.

•Do not install the unit in a place where inflammable gas may leak. If inflammable gas accumulates around the unit, it may cause a fire.

CAUTIONS ABOUT OPERATION

•Carefully read this manual before starting the air conditioner.

There are many important things to keep in mind for daily operation.

•Do not use this air conditioner for special purpose such as preserving food, precision instruments, art objects, breeding animals, growing potted plants, etc.

•Avoid exposing potted plants and animals to the wind of the air conditioner, since it badly affects the health and growth of them.

•When the air conditioner is operated with a combustion appliance in the same place, be careful of ventilation to let fresh air enter the room.

Poor ventilation causes oxygen shortage.

•Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwise it may cause imperfect combustion.

•When the air conditioner is used in a closed room, be careful of sufficient ventilation of the room. Poor ventilation causes oxygen shortage.

•Do not touch any switches with wet finger, otherwise you may get an electric shock.

•If the air conditioner won’t be used for a considerably long time, turn off the main switch or the circuit breaker, for safety.

•Check the concrete blocks, etc. of the base of the outdoor unit occasionally.

If the base is left damaged or deteriorated, the unit may topple over and inflict an injury to a person as the worst case.

•Do not put anything on the outdoor unit nor step onto it. If you do so, it may not only topple over the unit but also injure yourself.

•To make the air conditioner operate in its original performance, operate it within the range of the operating temperature specified in the instructions.

Otherwise it may cause a malfunction, or water leak from the unit.

•Prevent any liquid from falling into the remote controller. Do not spill juice, water or any kind of liquid.

15

PARTS NAME

Indoor unit

Button

Button to open/close the

suction port

Earth screw

Provided in the electric parts box

Discharge flap of discharge port

	Change the direction of the air
	to be discharged according to
Air filter	cool/heat mode.
Removes dust or trash.	Suction air port
(Provided on the suction port.)
	The air in the room is sucked
	in from this port.

Projection of air filter

Outdoor unit

Remote controller

Air inlet (Side and rear)

REMOTE CONTROLLER

Air outlet

Pipes and electric wires

RAV-SM1100AT-E RAV-SM1400AT-E

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PARTS NAME OF REMOTE CONTROLLER

Display section

In the display example, all indicators are displayed for the explanation.

In reality only, the selected contents are indicated.

• When turning on the leak breaker at the first time, [SET DATA] flashes on the display part of the remote controller. While this display is flashing, the model is being automatically confirmed. Accordingly, wait for a while after [SET DATA] display has disappeared, and then use the remote controller.

				1 8
		2	3
SM1100AT-RAV-E	SM1400AT-RAV-E	4		SET DATA
					UNIT No.
			5	SETTINGTEST	R.C. No.
			6
		7

1	SET DATA display	9
	Displayed during setup of the timer.
2	Operation mode select display	10
3	The selected operation mode is displayed.
	CHECK display	11
	Displayed while the protective device works or a
	trouble occurs.
4	Timer time display	12
	Time of the timer is displayed.

(When a trouble occurs, the check code is displayed.)

5 Timer SETIN setup display

When pushing the Timer SETIN button, the display of the timer is selected in order of [OFF]

→ [OFF] repeat OFF timer → [ON] 13

→ No display.

6 Filter display

If “FILTER ” is displayed, clean the air filter.

14

7 TEST run display

Displayed during a test run.

8 Flap position display

Displays flap position.

	CODE No.
SET DATA	Display
UNIT No.
SETTINGTEST R.C. No.	section
	Operation
UNIT	section
SET CL

9

CODE No.

10

11

12 13

14

SWING display

Displayed during up/down movement of the flap.

Set up temperature display

The selected set up temp. is displayed.

Remote controller sensor display

Displayed while the sensor of the remote controller is used.

PRE-HEAT display

Displayed when the heating operation starts or defrost operation is carried out.

While this indication is displayed, the indoor fan stops or the mode enters in LOW.

No function display

Displayed if there is no function even if the button is pushed.

Air volume select display

The selected air volume mode is displayed.

(AUTO) (HIGH) (MED.)

(LOW)

17

Operation section

Push each button to select a desired operation.

•The details of the operation needs to be set up once, afterward, the air conditioner can be used by pushing button only.

		1	7
2			8
			9
3
4			UNIT
5	SET	CL	10
		6

1 Air volume select button

Selects the desired air volume mode.

2 Timer set button

TIMER SET button is used when the timer is set up.

3 Check button

The CHECK button is used for the check operation. During normal operation, do not use this button.

4 Fan button

FAN button is used when a fan which is sold on the market or etc. is connected.

•If “No function” is displayed on the remote controller when pushing the FAN button, a fan is not connected.

5 Filter reset button

Resets (Erases) “FILTER ” display.

6 UNIT and AUTO flap button

UNIT (No function)

7 Operation lamp

Lamp is lit during the operation. Lamp is off when stopped.

Although it flashes when operating the protection device or abnormal time.

8 button

When the button is pushed, the operation starts, and it stops by pushing the button again.

When the operation has stopped, the operation lamp and all the displays disappear.

9 Operation select button

Selects desired operation mode.

10 Set up temperature button

Adjusts the room temperature.

Set the desired set temperature by pushing or .

OPTION :

Remote controller sensor

Usually the TEMP. sensor of the indoor unit senses the temperature. The temperature on the surrounding of the remote controller can also be sensed.

For details, contact the dealer from which you have purchased the air conditioner.

RAV-SM1100AT-E RAV-SM1400AT-E

18

CORRECT USAGE

When you use the air conditioner for the first time or when you change the SET DATA value, follow the procedure below. From the next time, the operation displayed on the remote controller will start by pushing the button only.

Preparation

Turn on the main power switch and/or the leakage breaker.

• When the power supply is turned on, a partition line is displayed on the display part of the remote controller.

*After the power supply is turned on, the remote controller does not accept an operation for approx. 1 minute, but it is not a failure.

REQUIREMENT

•While using the air conditioner, operate it only with button without turning off the main power switch and the leak breaker.

3

UNIT

SET CL

1 Push

button.

1

2

4

The operation lamp goes on, and the operation starts.

2 Select an operation mode with the “MODE” button.

One push of the button, and the display changes in the order shown on the right.

AUTO HEAT DRY COOL FAN

•In HEAT mode, if the room temperature reaches to the set temperature, the outdoor unit stops and the air flow becomes LOW and the air volume decreases.

•In the defrost mode, the fan stops so that cool air is not discharged and PRE-DEF is displayed.

3 Select air volume with “FAN ” button.

One push of the button, and the display changes in the order shown on the right.

AUTO HIGH MED. LOW

•When air volume is “AUTO ”, air volume differs according to the room temperature.

•In DRY mode, “AUTO ” is displayed and the air volume is LOW.

•In heating operation, if the room temperature is not heated sufficiently with VOLUME “LOW” operation, select “MED.” or “HIGH ” operation.

4 Determine the set up temperature by pushing the “TEMP. ” or “TEMP. ” button.

Stop

Push button.

The operation lamp goes off, and the operation stops.

19

AUTOMATIC OPERATION (Auto Changeover)

When you set the air conditioner in mode or switch over from AUTO operation because of some settings change, it will automatically select either cooling, heating, or fan only operation depending on the indoor temperature.

Start

1

2

button

Push this button to start the air conditioner.

Mode select button (MODE)

Select Auto.

3 Temperature button

Set the desired temperature.

•In case of cooling, start the operation after approx. 1 minute.

•In case of heating, the operation mode is selected in accordance with the room temperature and operation starts after approximately 3 to 5 minutes.

•When you select the Auto mode, it is unnecessary to set the fan speed. The FAN speed display will show AUTO and the fan speed will be automatically controlled.

•After the heating operation has stopped, FAN operation may continue for approx. 30 seconds.

•When the room temperature reaches the set temperature and the outdoor unit stops, the supper low wind is discharged and the air volume decreases excessively. During defrost operation, the fan stops so that cool air is not discharged and “HEAT READY” is displayed.

•If the Auto mode is uncomfortable, you can select the desired conditions manually.

NOTE

When restarting the operation after stop

•When restarting the operation immediately after stop, the air conditioner does not operate for approx. 3 minutes to protect the machine.

Stop

Push button.

Push this button again to stop the air conditioner.

20

ADJUSTMENT OF WIND DIRECTIONd

•When the air conditioner stops, the flap (adjustment plate of up/down wind direction) directs downward automatically.

•When the heating operation is in READY states, the flap (adjustment plate of up/down wind direction) directs upward. The swinging starts after HEAT READY status cleared, SWING is displayed on the remote controller even if the heating operation is in READY status.

How to set up the wind direction

1 Push during operation.

The wind direction changes for every push of the button.

In HEAT operation

Direct the flap (adjustment plate of up/down wind direction) downward. If directing at upward, hot air may not come to the foot.

Initial setup

In COOL/DRY operation

Direct the flap (adjustment plate of up/down wind direction) upward. If directing it downward, the dew may from on the surface of the air discharge port and may

drop down.

Initial setup

How to start swinging

1 Push , set the flap (adjustment plate of up/down wind direction) direction to the lowest position, and then push again.

SWING is displayed and the up/down wind direction is automatically selected.

How to stop swinging

1 Push SWING/WIND again while the flap is swinging.

•The flap stops at a position when you push.

After then, if pushing , the wind direction descends from the highest position.

•In COOL/DRY operation, the flap does not stop as it directs downward. If stopping the flap as it directs downward during swing operation, it stops after moving to the 3rd position from the highest position.

UNIT

SET CL

In FAN operation

In all modes

Series of operation

Initial setup

Display when stopping the swing

Fan/Heat	Cool/Dry
operation	operation

21