Toshiba MMD-AP0181SPH, MMD-AP0071SH-C, MMD-AP0091SPH, MMD-AP0151SPH, MMD-AP0121SPH DATA BOOK

FILE NO. A05-006

SERVICE MANUAL

<Slim Duct Type>

MMD-AP0071SPH (-C, -K), MMD-AP0091SPH (-C, -K), MMD-AP0121SPH (-C, -K), MMD-AP0151SPH (-C, -K), MMD-AP0181SPH (-C, -K),

MMD-AP0071SH-C,

MMD-AP0091SH-C,

MMD-AP0121SH-C,

MMD-AP0151SH-C,

MMD-AP0181SH-C,

•This Service Manual describes contents of the new Slim Duct indoor unit.

For the outdoor unit, refer to the Manual with FILE NO. A03-009.

PRINTED IN JAPAN, Jul.,2005 ToMo

	CONTENTS
SAFETY CAUTION ............................................................................................		3
1.	CONSTRUCTION VIEWS (EXTERNAL VIEWS) ........................................	8
2.	WIRING DIAGRAM .....................................................................................	9
3.	PARTS RATING ........................................................................................	10
4.	FAN CHARACTERISTICS ........................................................................	50
5.	REFRIGERANTING CYCLE DIAGRAM ...................................................	52
6.	CONTROL OUTLINE ................................................................................	53
7.	APPLIED CONTROL ................................................................................	57
8.	TROUBLESHOOTING ..............................................................................	62
9.	CONFIGURATION OF CONTROL CIRCUIT ..........................................	113
10.	DETACHMENTS .....................................................................................	118
11.	P.C. BOARD EXCHANGE PROCEDURES ............................................	123
12.	EXPLODED VIEWS AND PARTS LIST ..................................................	128

2

SAFETY CAUTION

The important contents concerned to the safety are described on the product itself and on this Service Manual.

Please read this Service Manual after understanding the described items thoroughly in the following contents, and keep them.

WARNING

		Before troubleshooting or repair work, check the earth wire is connected to the earth
		terminals of the main unit, otherwise an electric shock is caused when a leak occurs.
	Check earth wires.	If the earth wire is not correctly connected, contact an electric engineer for rework.
		Do not modify the products.
		Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.
	Prohibition of modification.
		For spare parts, use those specified ( ).
		If unspecified parts are used, a fire or electric shock may be caused.
	Use specified parts.	: For details, refer to the parts list.
		Before troubleshooting or repair work, do not bring a third party (a child, etc.) except
		the repair engineers close to the equipment.
	Do not bring a child	It causes an injury with tools or disassembled parts.
		Please inform the users so that the third party (a child, etc.) does not approach the equipment.
	close to the equipment.
		Connect the cut-off lead cables with crimp contact, etc, put the closed end side
		upward and then apply a water-cut method, otherwise a leak or production of fire is
	Insulating measures	caused at the users’ side.

When repairing the refrigerating cycle, take the following measures.

1)Be attentive to fire around the cycle. When using a gas stove, etc, be sure to put out fire before work; otherwise the oil mixed with refrigerant gas may catch fire.

	2) Do not use a welder in the closed room. When using it without ventilation, carbon
No fire	monoxide poisoning may be caused.

3)Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the inflammables.

Check the used refrigerant name and use tools and materials of the parts which match with it.

For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the outdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changed from one of the former R22.

For an air conditioner which uses R410A, never use other refrigerant than R410A. For an air conditioner which uses other refrigerant (R22, etc.), never use R410A.

If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle and an injury due to breakage may be caused.

Do not charge refrigerant additionally.

If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.

Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute Refrigerant vacuuming, and then newly recharge the specified amount of liquid refrigerant. In this time,

never charge the refrigerant over the specified amount.

When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than R410A into the specified refrigerant.

If air or others is mixed with the refrigerant, abnormal high pressure generates in the refrigerating cycle resulted in cause of injury due to breakage.

After installation work, check the refrigerant gas does not leak.

If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.

Never recover the refrigerant into the outdoor unit.

When the equipment is moved or repaired, be sure to recover the refrigerant with recovering device. The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakage or injury is caused.

3

WARNING

		After repair work, surely assemble the disassembled parts, and connect and lead the
		removed cables as before. Perform the work so that the cabinet or panel does not
		catch the inner cables.
	Assembly/Cabling	If incorrect assembly or incorrect cable connection was done, a disaster such as a leak or
		fire is caused at user’s side.

		After the work has finished, be sure to use an insulation tester set (500V mugger) to
		check the resistance is 2MW or more between the charge section and the non-charge
		metal section (Earth position).
	Insulator check	If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s
		side.

	When the refrigerant gas leaks during work, execute ventilation.
	If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the
	refrigerant and the closed room full with gas is dangerous because a shortage of oxygen
Ventilation	occurs. Be sure to execute ventilation.

		When checking the circuit inevitably under condition of the power-ON, use rubber
		gloves and others not to touch to the charging section.
	Be attentive to	If touching to the charging section, an electric shock may be caused.
	electric shock
		When the refrigerant gas leaks, find up the leaked position and repair it surely.
		If the leaked position cannot be found up and the repair work is interrupted, pump-down
		and tighten the service valve, otherwise the refrigerant gas may leak into the room.
		The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking
		stove though the refrigerant gas itself is innocuous.
		When installing equipment which includes a large amount of charged refrigerant such
		as a multi air conditioner in a sub-room, it is necessary that the density does not the
	Compulsion	limit even if the refrigerant leaks.
		If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is
		caused.
		For the installation/moving/reinstallation work, follow to the Installation Manual.
		If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric
		shock or fire is caused.
		After repair work has finished, check there is no trouble.
		If check is not executed, a fire, electric shock or injury may be caused. For a check, turn off
		the power breaker.
	Check after rerair	After repair work (installation of front panel and cabinet) has finished, execute a test
		run to check there is no generation of smoke or abnormal sound.
		If check is not executed, a fire or an electric shock is caused. Before test run, install the
		front panel and cabinet.
		Check the following items after reinstallation.
		1) The earth wire is correctly connected.
		2) The power cord is not caught in the product.
	Check after reinstallation	3) There is no inclination or unsteadiness and the installation is stable.
		If check is not executed, a fire, an electric shock or an injury is caused.

CAUTION

	Be sure to put on gloves ( ) during repair work.
	If not putting on gloves, an injury may be caused with the parts, etc.
Put on gloves	( ) Heavy gloves such as work gloves
	When the power was turned on, start to work after the equipment has been
	sufficiently cooled.
Cooling check	As temperature of the compressor pipes and others became high due to cooling/heating
	operation, a burn may be caused.

4

• New Refrigerant (R410A)

This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.

1. Safety Caution Concerned to New Refrigerant

The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refrigerant during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident. Use the tools and materials exclusive to R410A to purpose a safe work.

2. Cautions on Installation/Service

(1)Do not mix the other refrigerant or refrigerating oil.

For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them.

(2)As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which are specified for R410A.

(3)In the installation time, use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean pipes.

Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)

(4)For the earth protection, use a vacuum pump for air purge.

(5)R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant. (If using gas for charging, composition of the refrigerant changes and then characteristics of the air conditioner change.)

3. Pipe Materials

For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a minimum.

(1) Copper pipe

<Piping>

The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.

When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe without seam” and one with bonded oil amount 40mg/10m or less. Also do not use crushed, deformed, discolored (especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)

<Flare nut>

Use the flare nuts which are attached to the air conditioner unit.

(2)Joint

The flare joint and socket joint are used for joints of the copper pipe.

The joints are rarely used for installation of the air conditioner. However clear impurities when using them.

5

4. Tools

(1)Required Tools for R410A

Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.

1)Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))

2)Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)

3)Tools commonly used for R410A and for conventional refrigerant (R22)

The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)

Tools whose specifications are changed for R410A and their interchangeability

				R410A		Conventional air
			air conditioner installation			conditioner installation
No.	Used tool	Usage
			Existence of		Whether conven-	Whether new equipment
			new equipment		tional equipment can	can be used with
			for R410A		be used	conventional refrigerant
Q	Flare tool	Pipe flaring	Yes		*(Note 1)	Yes
	Copper pipe gauge for	Flaring by conventional	Yes		*(Note 1)	*(Note 1)
R	adjusting projection
		flare tool
	margin
S	Torque wrench	Connection of flare nut	Yes		No	No
T	Gauge manifold	Evacuating, refrigerant	Yes		No	No
		charge, run check, etc.
U	Charge hose
V	Vacuum pump adapter	Vacuum evacuating	Yes		No	Yes
W	Electronic balance for	Refrigerant charge	Yes		Yes	Yes
	refrigerant charging
X	Refrigerant cylinder	Refrigerant charge	Yes		No	No
Y	Leakage detector	Gas leakage check	Yes		No	Yes
Y	Charging cylinder	Refrigerant charge	(Note 2)		No	No

(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

(Note 2) Charging cylinder for R410A is being currently developed.

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools.

	(1)	Vacuum pump	(7)	Screwdriver (+, –)
		Use vacuum pump by	(8)	Spanner or Monkey wrench
		attaching vacuum pump adapter.
			(9)	Hole core drill
	(2)	Torque wrench
			(10)		Hexagon wrench (Opposite side 4mm)
	(3)	Pipe cutter
			(11)		Tape measure
	(4)	Reamer
			(12)		Metal saw

(5)Pipe bender

(6)Level vial

Also prepare the following equipments for other installation method and run check.

(1)	Clamp meter	(3)	IInsulation resistance tester
(2)	Thermometer	(4)	Electroscope

6

5. Recharge of Refrigerant

When recharge of the refrigerant is required, charge the new refrigerant with the specified amount in the procedure as described below.

Recover the refrigerant and check there is no refrigerant in the equipment.

Connect the charge hose to the packed valve service ports at gas side, liquid side, and balance side of the outdoor unit.

Connect the charge hose to vacuum pump adaptor.

Open the packed valves of the balance pipe fully at liquid and gas sides, and then return the valve at gas side a little to the closed side.

Open fully PMV of the outdoor unit.

•Turn on power of the outdoor unit.

•Short CN30 on I/F P.C. board of the outdoor unit.

•Turn off power of the outdoor unit within 2 minutes after short-circuiting.

Open fully the handle Low of the gauge manifold, and then turn on the power of vacuum pump for vacuuming.

When the pressure has lowered until indication of the compound gauge pointed -0.1MPa (-76cmHg), open fully the handle Low and turn off the power of vacuum pump.

Q Never charge the refrigerant over the specified amount.

RDo not charge the additional refrigerant.

If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.

Leave it as it is for 1 to 2 minutes and check the indicator of the compound gauge does not return.

Set the refrigerant cylinder on the electron balance, connect the charge hose to connecting ports of the cylinder and the electron gauge, and then charge the liquid refrigerant from the service port at liquid side. (Shield with the gauge manifold so that refrigerant does not flow to gas side.)

(Charge the refrigerant as below.)

				Low-	High-
			pressure gauge		pressure gauge
	Connected to	Valve fully closed
	indoor unit			VL	VH Gauge
		(gas side)
	Main				manifold
			Center unit
	pipe
	Brazed		Service		Reducing
			port	Ø6.4	valve
	Fully		Copper pipe
	tightened
			Service port
			Valve fully closed
	Fully		(liquid side)		Nitrogen
	tightened
					gas
				Ø6.4
				Copper pipe
			Valve fully closed
			(balance)
	Connected to other
	terminal units

4mm-hexagonal wrench is required.

Q R

Set the equipment so that liquid refrigerant can be charged.

When using a cylinder with siphon pipe, liquid can be charged without inversing the cylinder.

[ Cylinder with siphon ]

Gauge manifold

OUTDOOR unit

Refrigerant

cylinder

[ Cylinder without siphon ]

Gauge manifold	Siphon
	OUTDOOR unit

cylinder Refrigerant

Electronic	Electronic
balance	balance

6. Environment

R410A refrigerant is consisted with HFC mixed refrigerant. Therefore if the refrigerant gas is charged, the composition of the charged refrigerant changes and characteristics of the equipment changes.

Use “Vacuum pump method” for an air purge (Discharge of air in the connecting pipe) in installation time.

•Do not discharge flon gas into the air to protect the earth environment.

•Using the vacuum pump method, clear the remained air (Nitrogen, etc.) in the unit. If the air remains, the pressure in the refrigerating cycle becomes abnormally high and an injury and others are caused due to burst.

7

1. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

MMD-AP0071SPH(-K), AP0091SPH(-K), AP0121SPH(-K), AP0151SPH(-K), AP0181SPH(-K)

Ø92

80 59

Fresh air inlet (knock-out hole)

21
168 (inside)
21	21
20

Ø4-4	19
80	168
	120

845 57 210

803 (inside)	21	Refrigerant piping
Air filter		103
		67

511	645
	31
	359	372	422	502
67	40

805

910	33
	163

Drain-up port

Hung-up plate

MMD-AP0071SPH-C, AP0091SPH-C, AP0121SPH-C, AP0151SPH-C, AP0181SPH-C, MMD-AP0071SH-C, AP0091SH-C, AP0121SH-C, AP0151SH-C, AP0181SH-C

	Ø4-4
Ø92	80
	146
80	59

Fresh air inlet (knock-out hole)

20 21 168(inside) 21

120 168 19

21

845
	57
	210
803 (inside)	21		Refrigerant
	Natural drain port
		103	piping
	67

511	645
	31
	359	372	422	502
67	40

805

910 33

163

Drain-up port (SPH model only)

Hang-up plate

8

9

																																							Non Drain pump type
					Non Drain pump type																	PMV																	("SH" Type)
																																													Drain pump type
					("SH" Type)
														FM																															("SPH" Type)
					CN68																																			1		3		CN34
					(BLU)															6	4	3	1	2	5		(External static pressure setup)													1	2	3		(RED)				FS
					1
		Color																		6	4	3	1	2	5
	indication				3								1 CN334				5 CN333								6 CN82																CN33								CN34
	RED : RED								5	4					1	3				1	2	3	4	5					1	2																	1	3
	WHI	: WHITE							5	4	3	2	1 (WHI)		1	3	5 (WHI)			1	2	3	4	5	6 (BLU)				1	2		1 2		1		2		1	2 3 4	5 (WHI)							1	2 3	(RED)
	YEL	: YELLOW			Drain pump type
	BLU	: BLUE
					("SPH" Type)																							CN112			CN111			CN110																	TA
	BLK	: BLACK																																														CN104	1	1
	GRY : GRAY				CN68																								(WHI)			(WHI)		(WHI)
																																																(YEL)	2	2
	PNK : PINK				(BLU)
	ORN : ORANGE					1	1																																CN71		(CHK)										TCJ
	BRN : BRWN				DM			RY302																																								CN102	1	1
	GRN : GREEN
						3	3								Motor drive																																	(RED)	2	2
																																							CN72		(DISP)
																circuit
																																																CN101	1	1	TC2
							1
								CN304																																								(BLK)	2	2
							3	(GRY)
								Fuse										Fuse																														CN100	1	1		TC1
								T6.3A										T3.15A															Control P.C. board															(BRW)	3	3
					RED 1			250V~										250V~
							1															Power			DC20V									for undoor unit
																						supply			DC15V									MCC-1402															1
					WHI																				DC12V																							CN80
						3	3															circuit																											2	PNL
								CN67																	DC7V																							(GRN)
																																																	3
								(BLK)
						BLK		P301																																								CN73	1	EXCT
																																																(RED)	2
							1	CN66																																								CN70	1
							2	(WHI)
																																																(WHI)	2
			WHI		CN44		1	CN40			CN41					CN309		CN50								CN61					CN32			CN60						CN81					CN20
					(BRW)		2	(BLU)			(BLU)					(YEL)		(WHI)								(YEL)					(WHI)			(WHI)						(BLK)					(BLU)
	Closed-end
	connector		RED					1	2		1	2	3	1		3	1	2	3	4	5			1	2	3	4	5	6		1	2	1	2	3	4	5	6	1	2	3	4	5	1	2	3	4	5
								1	2	BLK	1		3	BLK																	Fan drive			Option
Flow								BLU	BLU
Selector unit	Indoor unit			R(L)	S(N)

	Power supply				Symbol	Parts name
Earth screw Earth screw			1.	indicates the terminal bolock.	FM	Fan motor
	220-240V~, 50Hz				TA	Indoor temp sensor
				Letter at inside indicates the terminal number.
	220V~, 60Hz	U1 U2 A B			TC1,TC2,TCJ	Temp sensor
			2. A dotted line and broken line indicate the
					RY302	Drain control relay
				wiring at side	PMV	Pulse motor valve
			3.	indicate a control P.C. board.	DM	Drain pump motor
					FS	Float switch

U1 U2

Outdoor unit

A	B
Wired remote
controller

AP0091SPH(SH), AP0071SPH(SH),-MMD	DIAGRAM WIRING .2
AP0181SPH(SH) AP0151SPH(SH), AP0121SPH(SH),

3. PARTS RATING

3-1. Parts Rating

Model	MMD-	AP0071SPH	AP0091SPH	AP0121SPH	AP0151SPH	AP0181SPH
Fan motor				SWF-280-60-1
Pulse motor				EDM-MD12TF-3
Pulse motor valve			EDM-B25YGTF		EDM-B40YGTF
Drain pump motor				ADP-1409
Float switch				FS-0218-102
TA sensor			Lead wire length : 1558mm Vinyl tube
TC1 sensor			Ø 4 size lead wire length : 1200mm Vinyl tube (Blue)
TC2 sensor			Ø 6 size lead wire length : 1200mm Vinyl tube (Black)
TCJ sensor			Ø 6 size lead wire length : 1200mm Vinyl tube (Red)

“SPH” series only

3-2. Name of Each Part

Air inlet				Earth screw
Suction duct is connected.				It is included in the electric parts box.

Air filter				Air outlet
(Air filter is not provided to some models in the series.)				Discharge duct is connected.

10

3-3. 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.

7 8 9

CODE No.

SET DATA SETTING TEST

UNIT No.

R.C. No.

H

TEMP.		ON / OFF
TIMER SET	FAN	MODE
TIME	SWING/FIX	VENT
FILTER
RESET TEST SET CL	UNIT

Display section

Operation section

	1	2
		3
	4		SET DATA SETTING TEST
		5	H
	6
1		15
	SET DATA display
2	Displayed during setup of the timer.
	Operation mode select display
3	The selected operation mode is displayed.
	CHECK display

Displayed while the protective device works or a trouble occurs.

4 Timer time display

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]
→	No display.

6 Filter display

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

7 TEST run display

Displayed during a test run.

8 Flap position display

(for 4-Way Air Discharge Cassette Type and Under Ceiling Type model only)

Displays flap position.

9 SWING display

Displayed during up/down movement of the flap.

10 Set up temperature display

The selected set up temp. is displayed.

11 Remote controller sensor display

Displayed while the sensor of the remote controller is used.

	CODE No.	17
UNIT No.	10	16
R.C. No.
	11	13
	12	14

12 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.

13 Operation ready display

Displayed when cooling or heating operation is impossible because the outdoor temperature goes out of the operable range.

14 No function display

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

15 Air volume select display

The selected air volume mode is displayed.

(AUTO)	(HIGH)
(MED.)	(LOW)

In the Concealed Duct High Static Pressure type models, [HIGH] only is displayed for the air speed.

16 Mode select control display

Displayed when pushing “Operation mode select

” button while the operation mode is fixed to heating or cooling by the system manager of the air conditioner.

17 Central control display

Displayed when using the remote controller together with the central control remote controller, etc.

If Remote controller is prohibited at the centralcontrol side, flashes when operating

ON / OFF , MODE ,

/

buttons and

the change is not accepted.

(The contents available to be set up on the remote controller differ according to the central control mode. For details, refer to Owner’s Manual of the central control remote controller.)

11

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

ON / OFF button only.

		1	7
	TEMP.			ON / OFF	8
	10
		TIMER SET	FAN	MODE
	2				9
		TIME	SWING/FIX	VENT
					4
	FILTER
	RESET TEST	SET CL	UNIT		6
	5
	3

1 Air volume select button

Selects the desired air volume mode.

The Concealed Duct High Static Pressure type models cannot be operated.

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 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	Wind direction and Swing
	UNIT :

If the multiple indoor units are operated by only one remote controller, select the units when the air direction is adjusted.

SWING/FIX :

Set up the auto swing and angle of the flap.

•This function is not provided to Concealed Duct Standard Type, High Static Pressure Type, Floor standing Cabinet Type, Floor Standing Concealed Type, or Slim Duct Type.

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	ON / OFF	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

UUsually 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.

•In case that one remote controller controls the multiple indoor units, the setup operation is unavailable in group control.

12

3-4. 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

ON / OFF 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	ON / OFF	button without turning off the main power
switch and the leak breaker.
TEMP.		ON / OFF		1
4			3
				2
TIMER SET	FAN	MODE
TIME	SWING/FIX	VENT
FILTER
RESET TEST SET CL	UNIT

1

2

ON / OFF

Push button.

The operation lamp goes on, and the operation starts.

Select an operation mode with the “MODE” button.

Cooling only model

DRY

COOL

FAN

One push of the button, and the display

Heat-pump model

changes in the order shown on the right.

• In HEAT

mode, if the room temperature reaches to

HEAT

DRY

COOL

FAN

the set temperature, the outdoor unit stops and the air

(Dehumidity)

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 “ ” button.

One push of the button, and the display

AUTO

HIGH

MED.

LOW

changes in the order shown on the right.

•When air volume is “AUTO ”, air volume differs according to the temperature difference between set temp. and room temp.

•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. TEMP. ” or “TEMP. ” button.

Stop

Push ON / OFF button.

The operation lamp goes off, and the operation stops.

13

3-5. Automatic Operation (Super Heat Recovery Type Only)

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.

TEMP. ON / OFF

3	TIMER SET	FAN	MODE
	TIME	SWING/FIX	VENT
FILTER
RESET TEST	SET CL	UNIT

Start

1	ON / OFF	button

Push this button to start the air conditioner.

2 Mode select button (MODE)

Select Auto.

3 Temperature button

Set the desired temperature.

1

2

•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 super 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 ON / OFF button.

Push this button again to stop the air conditioner.

14

3-6. TIMER Operation

A type of timer operation can be selected from the following three types.

OFF timer	: The operation stops when the time of timer has reached the set time.
Repeat OFF timer : Every time, the operation stops after the set time has passed.
ON timer	: The operation starts when the time of timer has reached the set time.

Timer operation

		TEMP.		ON / OFF
	1	TIMER SET	FAN	MODE
		TIME	SWING/FIX	VENT
		FILTER		2
		RESET TEST SET CL	UNIT

3 4

1 Push TIMER SET button.

•The timer display (type) changes for every push of the button.

•SET TIME and timer time displays flash.

2 Push	TIME	to select “SET TIME”.

	OFF					OFF				ON
(OFF timer)			(Repeat OFF timer)						(ON timer)
				No display

For every push of button, the set time increases in the unit of 0.5 hr (30 minutes). The maximum set time is 72.0 hr.

For every push of button, the set time decreases in the unit of 0.5 hr (30 minutes). The minimum set time is 0.5 hr.

3 Push SET button.

•SETTING display disappears and timer time display goes on.

(When ON timer is activated, timer time, ON timer are displayed and other displays disappear.)

Cancel of timer operation

4 Push CL button.

• TIMER display disappears.

NOTICE

• When the operation stops after the timer reached the preset time, the Repeat OFF timer resumes the operation by pushing ON / OFF button and stops the operation after the time of the timer has reached the set time.

15

3-7. Information

Confirmation before operation

•Turn on the power switch 12 hours before starting the operation.

•Make sure whether earth wire is connected.

•Make sure the air filter is connected to the indoor unit.

Heating capacity

•A heat pump system which absorbs heat from outside of the room and then discharges heat into the room is adopted for heating. If the outside temperature falls, the heating capacity decreases.

•When the outside temperature is too low, it is recommended to use this air conditioner together with other heating equipment.

Defrost during heating operation

•In heating operation, if there is frost on the outdoor unit, the operation changes automatically to the defrost operation (Approx. 2 to 10 minutes) to increase the heating efficiency.

•During defrost operation, the fan of the indoor unit stops.

3-minutes protection

•When restarting the operation just after the operation has been stopped or the main power switch has turned on, the outdoor unit does not work for approx. 3 minutes in order to protect the air conditioner.

Power failure

•If a power failure occurred during operation, all operations stop.

•When the power is returned after a power failure, the operation lamp notifies the power-ON by flashing operation lamp on the remote controller.

ON / OFF

• When restarting the operation, push button again.

Fan rotation in stopped unit

•In heating operation even in the stopped indoor unit, the fan rotates once for several minutes per approx. an hour when the other indoor unit is operating to protect the air conditioner.

Protective device (High pressure switch)

This device stops automatically an operation when excessive force is applied on the air conditioner.

If the protective device works, the operation stops and the operation lamp flashes.

When the protective device works, the indication TEST and the check code are displayed on the display section of the remote controller. In the following cases, the protective device may work.

In cooling operation

•The suction port or discharge port of the outdoor unit is closed.

•A strong wind continuously blows to the discharge port of the outdoor unit.

In heating operation

•Dust or waste adheres excessively to air filter of the indoor unit.

•The discharge port of the indoor unit is closed.

If the protective device works, turn off the main power switch, solve the cause, and then start the operation again.

Cooling/Heating operation of Super Modular Multi system air conditioner

•Although each indoor unit can be individually controlled in the Super Modular Multi system air conditioner, the cooling operation and the heating operation cannot be simultaneously performed in the multiple indoor units which are connected to an outdoor unit.

•If the cooling operation and the heating operation are simultaneously performed, the indoor unit

which executes cooling operation stops, and on the operation section lights up. On the other hand, the indoor unit which executes heating operation continues running. In a case that the manager of the air conditioner has fixed the operation to cooling or heating, an operation other than that set up is unavailable. If an operation other than that

set up is executed, on the operation section lights up and the operation stops.

Characteristics of heating operation

•The wind is not out just after starting an operation. The hot wind starts to blow 3 to 5 minutes after (Time differs according to indoor/outdoor temperature.) the indoor heat exchanger has warmed up.

•During operation, the outdoor unit may stop if the outside temperature rises.

16

3-8. Air Conditioner Operations and Performance

3 minutes protection function

3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main power switch/circuit breaker is turned on for re-starting the air conditioner.

Power failure

Power failure during operation will stop the unit completely.

•To restart the operation, push the START/STOP button on the remote controller.

•Lightning or a wireless car telephone operating nearby may cause the unit to malfunction. Turn off the main power switch or circuit breaker and then turn them on again. Push the START/STOP button on the remote controller to restart.

Heating characteristics

Preheating operation

The air conditioner will not deliver warm air immediately after it is turned on. Warm air will start to flow out after approximately 5 minutes when the indoor heat exchanger warmed up.

Warm air control (In heating operation)

When the room temperature reaches the set temperature, the fan speed is automatically reduced to prevent to blow cold draft. At this time, the outdoor unit will stop.

Defrosting operation

If the outdoor unit is frosted during the heating operation, defrosting starts automatically (for approximately 2 to 10 minutes) to maintain the heating capacity.

•The fans in both indoor and outdoor units will stop during the defrosting operation.

•During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor unit.

Heating capacity

In the heating operation, the heat is absorbed from the outside and brought into the room. This way of heating is called heat pump system. When the outside temperature is too low, it is recommended to use another heating apparatus in combination with the air conditioner.

Attention to snowfall and freeze on the outdoor unit

•In snowy areas, the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up. If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.

•In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside for freeze prevention. If water freezes in the drain hose or inside the outdoor unit, it may cause machine failure or poor warming.

Air conditioner operating conditions

For proper performance, operate the air conditioner under the following temperature conditions:

Cooling operation	Outdoor temperature		: –5°C to 43°C (Dry valve temp.)
	Room temperature		: 21°C to 32°C (Dry valve temp.), 15°C to 24°C (Wet valve temp.)
	CAUTION	Room relative humidity – less than 80 %. If the air conditioner operates
		in excess of this figure, the surface of the air conditioner may cause dewing.
Dry operation	Outdoor temperature : 15°C to 21°C (Dry valve temp.), –15°C to 15.5°C (Wet valve temp.)
	Room temperature		: 15°C to 28°C (Dry valve temp.)

If air conditioner is used outside of the above conditions, safety protection may work.

17

3-9. When the Following Symptoms are Found

Check the points described below before asking repair servicing.

Symptom

Outdoor unit • White misty cold air or water is out.

•Sometimes, noise “Pushu !” is heard.

	Indoor unit	• “Swish” sound is
			heard sometimes.
		•	Slight “Pishi!” sound
			is heard.
again.		•	Discharge air smells.
		• The operation lamp
Check			flashes
		• “STANDBY”
			indication is lit.
		•	Sound or cool air is
			output from the
			stand by indoor unit.
		• When power of the
			air conditioner is
			turned on, “Ticktock”
			sound is heard.
	Operates or stops automatically.
	Does not operate.
failure.a		Silent
It is not	Air is not cooled		or warmed sufficiently.
			It’s strange.

Cause

•Fan of the outdoor unit stops automatically and performs defrost operation.

•Solenoid valve works when defrost operation starts or finishes.

•When the operation has started, during the operation, or immediately after the operation has stopped, a sound such as water flows may be heard, and the operation sound may become larger for 2 or 3 minutes immediately after the operation has started. They are flowing sound of refrigerant or draining sound of dehumidifier.

•This is sound generated when heat exchanger, etc. expand and contract slightly due to change of temperature.

•Various smell such as one of wall, carpet, clothes, cigarette, or cosmetics adhere to the air conditioner.

•Flashes when power is turned on again after power failure, or when power switch is turned on.

•When cooling operation cannot be performed because another indoor unit performs heating operation.

•When the manager of the air conditioner has fixed the operation to COOL or HEAT, and an operation contrary to the setup operation is performed.

•When fan operation stopped to prevent discharge of hot air.

•Since refrigerant is flowed temporarily to prevent stay of oil or refrigerant in the stand by indoor unit, sound of flowing refrigerant, “Kyururu” or “Shaa” may be heard or white steam when other indoor unit operates in HEAT mode, and cold air in COOL mode may be blow-out.

•Sound is generated when the expansion valve operates when power has been turned on.

•Is the timer “ON” or “OFF”?

•Is it a power failure?

•Is the power switch turned off?

•Is the power fuse or breaker blown?

•Has the protective device operated? (The operation lamp goes on.)

•Is the timer “ON”? (The operation lamp goes on.)

•Are COOL and HEAT selected simultaneously? (“STANDBY” indication is lit on the display column of the remote controller.)

•Is the suction port or discharge port of the outdoor unit obstructed?

•Are any door or window open?

•Is the air filter clogged with dust?

•Is discharge louver of the indoor unit set at appropriate position?

•Is air selection set to “LOW” “MED”, and is the operation mode set to “FAN”?

•Is the setup temp. the appropriate temperature?

•Are COOL and HEAT selected simultaneously? (“STANDBY” indication is lit on the display column of the remote controller.)

When the following symptoms are found, stop the operation immediately, turn off the power switch, and contact the dealer which you have purchased the air conditioner.

•Activation of switch is unstable.

•Fuse or breaker is blown periodically.

•Foreign matters or water entered by mistake.

•When if activation cause of the protective device has been removed, the operation is not performed.

•Other unusual status occurred.

18

Accessory parts

H Accessory parts

Part name	Q’ty	Shape	Usage
Installation Manual	1	This manual	(Be sure to hand over to customers)
Insulating pipe	2		For insulating pipe connecting section
Washer	8	M10 × Ø34	For hanging down the unit
Hose band	1		For connecting drain pipe
Flexible hose	1	——	For adjustment of drain pipe centering
Heat insulator	1		For insulating drain connecting section

19

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 pressureresistance 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.

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 wire correctly.

If the connecting wire 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 as a result 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.

•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 Installation 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 wires for wiring connect the terminals securely fix. To prevent external forces applied to the terminals from affecting the terminals.

•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.

Manual Installation .10-3

series “SPH”

2 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER

This air conditioner adopts the new HFC refrigerant (R410A) which does not deplete the ozone layer.

•R410A refrigerant is apt to be affected by impurity such as water, oxidizing membrane, or oils because the pressure of R410A refrigerant is higher than that of the former refrigerant by approx. 1.6 times. Accompanied with adoption of the new refrigerant, refrigerating oil has been also changed. Therefore pay attention so that water, dust, former refrigerant, or refrigerating oil does not enter into the refrigerating cycle of the new refrigerant air conditioner during installation work.

•To prevent from mixing of refrigerant or refrigerating oil, the size of charge port of the main unit or connecting section of installation tool differs from that of the air conditioner for the former refrigerant. Accordingly the exclusive tools are required for the new refrigerant (R410A) as shown below.

•For connecting pipes, use the new and clean piping materials so that water or dust does not enter.

Required tools and cautions on handling

It is necessary to prepare the tools and parts as described below for the installation work.

The tools and parts which will be newly prepared in the following items should be restricted to the exclusive use.

Explanation of symbols

l: Newly prepared (It is necessary to use it properly exclusive to R410A separated from those for R22 or R407C.) ¡: Former tool is available.

		Used tools	Usage	Proper use of tools/parts
		Gauge manifold	Vacuuming or charging of	l Newly prepared, Exclusive to R410A
			refrigerant and operation check
	20	Charging hose		l Newly prepared, Exclusive to R410A
		Charging cylinder	Charges refrigerant	Unusable (Use the Refrigerant charging balance.)
		Gas leak detector	Checks gas leak	l Newly prepared
		Vacuum pump	Vacuum drying	Usable if a counter-flow preventive adapter is attached
		Vacuum pump with counter-	Vacuum drying	¡ : R22 (Existing article)
		flow preventive adapter
		Flare tool	Flare processing of pipes	¡ : Usable by adjusting size
		Bender	Bending processing of pipes	¡ : R22 (Existing article)
		Refrigerant recovery device	Recovers refrigerant	l Exclusive to R410A
		Torque wrench	Tightens flare nut	l Ø12.7mm, Exclusive for Ø15.9mm
		Pipe cutter	Cuts pipes	¡ : R22 (Existing article)
		Refrigerant cylinder	Charges refrigerant	l Exclusive to R410A
				ID : Refrigerant name entered
		Welding machine/	Welding of pipes	¡ : R22 (Existing article)
		Nitrogen gas cylinder
		Refrigerant charging balance	Charges refrigerant	¡ : R22 (Existing article)

3 SELECTION OF INSTALLATION PLACE

WARNING

•Install the air conditioner where there is sufficient strength to weight of the unit.

If strength is insufficient, the unit may fall down resulting in human injury.

•Perform a specified installation work to guard against an earth quake.

An incomplete installation can cause accidents by the units failing and dropping.

•Install the air conditioner at a height 2.5m or more from the floor.

If you insert your hands or others directly into the unit while the air conditioner operates, it is dangerous because you may contact with revolving fan or active electricity.

CAUTION

•Do not install the air conditioner in a location subject to a risk of exposure to combustible gas.

Should the combustible gas leak and collect near the unit, fire may occur.

Upon approval of the customer, install the air conditioner in a place that satisfies the following conditions.

•Place where the unit can be installed horizontally.

•Place where a sufficient servicing space can be ensured for safe maintenance and check.

•Place where drained water will not cause any problem.

Avoid installing in the following places.

•Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas (hot spring). (Should the unit be used in these places, special protective measures are needed.)

•Place exposed to oil, vapor, oil smoke or corrosive gas.

•Place where organic solvent is used nearby.

•Place close to a machine generating high frequency.

•Place near door or window where may come to contact with the fresh air of high humidity. (Dewing may be caused.)

•Place where special spray is frequently used.

•Place with poor ventilation.

Installation under high-humidity atmosphere

In some cases including the rainy season, especially inside of the ceiling may become high-humidity atmosphere (dew-point temperature: 23°C or higher).

1.	Installation to inside of the ceiling with tiles on the roof
2.	Installation to inside of the ceiling with slated roof
3.	Installation to a place where inside of the ceiling is used for pathway to intake the fresh air
	•	In the above cases, additionally attach the heat insulator to all positions of the air conditioner, which come to
					“SPH”
		contact with the high-humidity atmosphere. In this case, arrange the side plate (Check port) so that it is easily
		removed.
	•	Apply also a sufficient heat
		insulation to the duct and	[Reference]	Dewing test conditions	series
		connecting part of the duct.		Air volume: Low air volume, operation time 4 hours
				Indoor side: 27°C dry bulb temperature
				24°C wet bulb temperature

21

3 SELECTION OF INSTALLATION PLACE

Installation space

Reserve space required for maintenance the indoor unit and service work.

5 or more

235 or more

Air outlet

210

100 or more

250

or more

(Unit : mm)

	<Under air inlet>
	5 or more
	210	235
		or more
Ceiling	Air inlet
	50 or more
	2500 or more
	Floor surface

<Back air inlet>

Air inlet

Ceiling

300 or more

Floor surface

	5 or more		235
	210
			or more
	2500 or more

Service space
	Air outlet
Ceiling	50	50
	945	645
		Service door (Ceiling opening)

	645
945	645
	Service door (Ceiling opening)
	Air filter
	745
945	745

Arranging the to back air inlet type

<Back air inlet>

Air filter	Main unit	Air filter
		Main unit
	Force	(after remover)

Remove the filter from the main unit while pushing down on the tabs.

Remove the cover plate and then fix it to the bottom surface.

Do surely hooking to the main unit.

Notification of filter cleaning term setup

The lighting term setup of the filter sign (Notification of filter cleaning) of the remote controller can be changed according to the condition of installation.

For setup method, refer to “Change of lighting term of filter sign” and “To secure better effect of heating” in the Applicable controls of this Manual.

In case of wireless type

The sensor of indoor unit with wireless remote
controller can receive a signal 8m or less.
Based upon it, determine a place where the remote				“SPH”
controller is operated and the installation place of the		8m
indoor unit.			or
•	To prevent a malfunction, select a place where is not		less
				series
	influenced by a florescent light or direct sunlight.
•	Two or more (Up to 6 units) indoor units with
	wireless remote controller can be installed in the
	same room.

22

4 INSTALLATION OF INDOOR UNIT

WARNING

Install the air conditioner certainly to sufficiently withstand the weight.

If the strength is insufficient, the unit may fall down resulting in human injury.

Perform a specified installation work to guard against strong wind or earthquake.

An incomplete installation can cause accidents by the units falling and dropping.

REQUIREMENT

Strictly comply with the following rules to prevent damage of the indoor units and human injury.

•Do not put a heavy article on the indoor unit. (Even units are packaged)

•Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc. to not damage the unit.

•To move the indoor unit, hold the hooking metals (4 positions) only.

Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.).

•Carry the package by two or more persons, and do not bundle it with PP band at positions other than specified.

External view

21

168 (inside)
21	21
20

	Ø4-4	19
Ø92	80	168
		120

80 59

Fresh air inlet (knock-out hole)

845

803 (inside)

Air filter

805

910

57

210

21

Refrigerant piping

103

67

511	645
	31
	359	372	422	502
67	40

33

163

Drain-up port

Hung-up plate

Opening hole on ceiling and placing of hanging bolt

•Considering the indoor unit and the hanged-up piping/wiring work, determine the installation position and direction.

•After installation position of the indoor unit has been determined, open a hole on the wiring and place the hanging bolt.

•For opening size of the ceiling and the hanging bolt pitch, see the external view.

•When the ceiling has already boarded, draw the drain pipe, refrigerant pipe, inter-unit wire between indoor and outdoor units, central control system wire, and remote controller wire up to the position where pipes and wires are connected before hanged-up the indoor unit.

The hanging bolts and nuts will be procured locally.

Hanging bolt	M10 or W3/8	4 pieces
Nut	M10 or W3/8	12 pieces

Installation of hanging bolt

Use M10 hanging bolts (4 pcs, to be local procure).

Matching to the existing structure, set pitch according to size in the unit external view as shown below.

	New concrete slab		Steel flame structure		Existing concrete slab
Install the bolts with insert brackets or anchor			Use existing angles or install new		Use a hole-in anchors, hole-in
bolts.			support angles.		plugs, or a hole-in bolts.
			Hanging bolt
		Reinforcing
		steel
		Anchor bolt
(Blade type	(Slide type	(Pipe hanging
bracket)	bracket)	anchor bolt)	Hanging bolt	Support angle

Installation of indoor unit

•Attach the nuts (M10 or W3/8: Procured locally) and the attached washers (Ø34) to the hanging bolt.

•Put washers at up and down of T-groove of the hanging bracket of the indoor unit to hang down the indoor unit.

•Using a level vial, check that four sides are horizontal. (Horizontal degree: Within 5mm)

Hanging bolt	(1)
	M10 flat washer
(W3/8 or M10)	(Accessory)
Nut	(2)
(W3/8 or M10)
	M10 flat washer
Nut	(Accessory)
(W3/8 or M10)

(1)Required those other than M10 flat washer at site.

(2)To prevent falling-off of bolt (safety), be sure to set it just under the hanging bracket as shown in the figure.

series “SPH”

23

5 DRAIN PIPING WORK

CAUTION

•Following the Installation Manual, perform the drain piping work so that water is properly drained, and apply a heat insulation so as not to cause a dew. Inappropriate piping work may result in water leakage in the room and wet of furniture.

Pipe material/Insulator and size

The following materials for piping work and insulating process are procured locally.

Hard vinyl chloride pipe socket for VP25

Pipe material Hard vinyl chloride pipe VP25 (Nominal outer diameter Ø32mm)

Insulator

Foamed polyethylene foam, thickness: 10mm or more

REQUIREMENT

•Be sure to perform heat insulation of the drain pipes of the indoor unit.

•Never forget to perform heat insulation of the connecting part with the indoor unit. An incomplete heat insulation causes dewing.

•Set the drain pipe with downward slope (1/100 or more), and do not make swelling or trap on the piping. It may cause an abnormal sound.

•For length of the traversing drain pipe, restrict to 20m or less. In case of a long pipe, provide support brackets with interval of 1.5 to 2m in order to prevent waving.

1.5m to 2m Support bracket

	Heat	1/100 or more
	insulator
		downward

Arched

shape NO

GOOD

Trap

•	Set the collective piping as shown in the right figure.				As long as possible (100mm or more)
•	Do not mount an air purge pipe,				VP25			VP25			VP25
	otherwise drain water spouts	(Collective pipes)
	out resulted in water leak.

•The hard vinyl-chloride pipe cannot be directly connected to the drain pipe connecting port of the indoor unit. For connection with the drain pipe connecting port, be sure to fix the attached flexible hose.

•Adhesive agent cannot be used for the pipe connecting port (hard socket) of the indoor unit. Be sure to use the attached hose band for fixing, otherwise damage or water leakage of the drain pipe connecting port is caused.

VP30 or more

Downward slope

1/100 or more

Drain pipe connecting port

Ø25 vinyl chloride pipe

(Hard socket)

(Local supply)

Align the attached hose band to the

end of hose, set the tightening

position upward, and then tighten it.

Indoorunit

Socket for VP25

Soft socket

Hard socket

(Local supply)

Adhesive agent prohibited

Connection of flexible hose

•Insert the soft socket of the attached flexible hose into the connecting port of the drain pipe until it strikes against the end.

•Align the attached hose band to the end of the pipe connecting port, and then tighten it surely.

REQUIREMENT

•Be sure to fix the soft socket with the attached hose band and set the tightening position at upper side.

•Use the attached flexible hose by bending it with 45° or less so that no breakage or clogging occurs.

Top view OK		NO GOOD
		Side view
		Air outlet
	max	Riser (Trap)
	45˚
Side view		Side view
Air outlet	max	Air outlet
	45˚	90˚ Bend

Connection of drain pipe

•Connect the hard socket (local supply) to the hard socket side of the attached flexible hose which has been installed.

•Connect the drain pipes (local supply) successively to the connected the hard socket.

REQUIREMENT

•Using adhesive agent for vinyl chloride, connect the hard vinyl chloride pipes certainly so that water does not leak.

•It requires several times to dry and harden the adhesive agent.

(Refer to Guide Manual of the adhesive agent.) In this time, be sure not to apply force to the connecting section with the drain pipes.

Drain up

When a downward grading cannot be secured on the drain pipe, a drain-up work is possible.

•Set the height of the drain pipe within 850mm from the bottom surface of the indoor unit.

•Draw out the drain pipe within 300mm from the end of the drain pipe connecting port of the indoor unit, and then raise it vertically.

•After the drain pipe has been raised, set a grading so that it is immediately bent downward.

Rising up 687mm or less	850mm or less
	up
300mm	Rising
or less

Indoor unit

Underneath of ceiling

Check the draining

After drain piping work, check that water drain is properly performed and water does not leak from the connecting part of the pipes. In this time, check also there is no abnormal sound of the motor of the drain pump. Be sure to check draining when installed in the heating period.

When the electric work has finished:

•Pour water as shown in the following figure, check water is drained from the drain pipe connecting port in COOL mode, and then check there is no water leak from the drain pipes.

When the electric work has not finished:

•Pull out the float switch connector (3P: Red) from P.C. board connector (CN34: Red) of the electric parts box. (In this time, be sure to check the power is turned off.)

•Connect the single-phase 220-240V 50Hz (or 220V 60Hz) power to the terminal blocks R (L) and S (N). (Never apply 220-240V to (A), (B), (U1),and (U2), otherwise a trouble of P.C. board occurs.)

•Pour water referring to the figure. (Amount: 1500cc to 2000cc)

•When the power is turned on, the drain pump motor drives automatically.

Check water is drained from the drain pipe connecting port, and then check there is no water leak from the drain pipes.

•After check of draining and water leak, turn off the power supply, attach the float switch connector to the original position (CN34) of P.C. board, and then set the electric parts box as before.

				220–240V ~, 50Hz
				220V ~, 60Hz
		R(L) S(N)			White
CN34			Red
(RED)	Black
	Pull out connector CN34 (Red) from P.C. board.
	Black

series “SPH”

24

5 DRAIN PIPING WORK

Insert the edge of hose into the

drain pan and bend it downward.

Cover plate

	CAUTION
	Pour water slowly.
Pump	If it is poured urgently, water is spread inside
	of the indoor unit resulted in a trouble.
Vessel	Water
	(1500cc~2000cc)

Heat insulating process

•After drain check, using the attached heat insulator for drain connecting section, wrap the flexible hose without clearance from the end of the drain pipe connecting port of the indoor unit.

•Covering the attached heat insulator for drain connecting section, wrap the drain pipe with heat insulator (local supply) without clearance.

Flexible hose		Hose band
Attached heat insulator	Heat insulator to be
	procured locally

Hard vinyl chloride pipe

6 AIR DUCTING

6-1. Arrangement

Referring to the following dimensions, manufacture duct at the local site.

		<Under air inlet>												<Back air inlet>
			805							or less					805
									41.5	8.2
																					44.3
266									100 100	286.8	170										100	188
100	100	100	100	100	100	100	100		45.3		12.5				825					12.5	44.3
12.5								12.5				100	100	100	100	100	100	100	100
			825

Be sure to mount an air filter to the air inlet side; otherwise decrease of capacity and etc. may be caused.

<Under air inlet>

<Back air inlet>

Air filter						Main unit

Force

Remove the filter from the main unit while pushing down on the tabs.

CAUTION

Take out this cover plate.

Remove the cover plate and then fix it to the bottom surface.

6-2. Connecting method of the duct
Heat insulator with sticking material (100mm-width Local supply)
Aluminum tape (Local supply) Flange	Connect a duct to the	Flange (Local supply)
	inside of the flange	Aluminum tape (Local supply)
Duct:Insulation material
(Local supply)
Air outlet side	Indoor unit	Air inlet side
Aluminum tape		Aluminum tape (Local supply)
(Local supply)

	Cover a screw	Under surface	“SPH”
	Heat insulator with sticking material (100mm-width Local supply)

	CAUTION	series
	Incomplete heat insulation of the supply air flange and sealing may occur dewing resulted in falling of water
	drop.

7 REFRIGERANT PIPING

WARNING

•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 may generate.

REQUIREMENT

When the refrigerant pipe is long, set the support brackets to fix the pipe with 2.5 to 3m intervals. If the pipe is not fixed, abnormal sound may generate.

Be sure to use the flare nuts attached to the indoor unit or those fro R410A.

Permissible pipe length and permissible height difference

They are different according to the used outdoor unit. For details, refer to the Installation Manual attached to the outdoor unit.

Piping material and dimensions

25	Piping material		Phosphor deoxidization joint-less pipe for air conditioner
	Model MMD-		AP007 to AP012	AP015 to AP018
	Pipe size (mm)	Gas side	Ø9.5	Ø12.7
		Liquid side	Ø6.4	Ø6.4

• Use a clean and new pipe, and check that impurity such as dust, oil, moisture, etc. does not adhere in the pipe.

Pipe forming/End positioning

Flaring

1. Cut the pipe with a pipe cutter.

OK	NO GOOD
90˚	Obliquity Roughness Warp

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 of the copper pipe.

• Flaring diam. meter size :				A
A (Unit : mm)
Outer diam. of		A -+00.4
copper pipe		R410A
6.4		9.1
9.5		13.2
12.7		16.6

*In case of flaring for R410A with the conventional flare tool, pull it out approx. 0.5 mm more than that for R22 to adjust to the specified flare size.

The copper pipe gauge is useful for adjusting projection margin size.

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

Rigid (Clutch type)

Outer diam. of	R410A tool used		Conventional tool used
copper pipe	R410A	R22	R410A	R22
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

•Tightening torque of flare pipe connections

Pressure of R410A is higher than that of R22 by approx. 1.6 times. Therefore, using a torque wrench, tighten the flare pipe connecting sections which connect the indoor and outdoor units of the specified tightening torque. Incorrect connections may cause not only a gas leak, but also a trouble of the refrigerating cycle.

REQUIREMENT

If an excessive torque is applied, the nut may crack depending on the installation conditions.

Imperial (Wing nut type)

Outer diam. 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

Connection of refrigerant pipe

Connect all the refrigerant pipes with flare connecting work.

•Since the atmospheric pressure only is sealed as the sealing gas, it is not abnormal that “Pushu…” sound is not heard when the flare nut is removed.

•Be sure to use a double spanner for pipe connecting work of the indoor unit.

Work using double spanner

• Refer to the following table for tightening torque.

Connecting pipe	Tightening torque	Re-tightening
outer dia. (mm)	(N•m)	torque (N•m)
Ø6.4	14 to18 (1.4 to 1.8 kgf•m)	18 (1.8 kgf•m)
Ø9.5	33 to 42 (3.3 to 4.2 kgf•m)	42 (4.2 kgf•m)
Ø12.7	50 to 62 (5.0 to 6.2 kgf•m)	62 (6.2 kgf•m)

Airtight test/Air purge, etc.

For airtight test, air purge, addition of refrigerant, and gas leak check, follow the Installation Manual attached to the outdoor unit.

REQUIREMENT

Be sure to use the tool such as charge hose exclusive to R410A.

Do not turn on the power until the airtight test and the vacuuming have finished. (If turning on the power, the incorporated PMV is closed fully and the period until the vacuuming finishes elongates.

Open fully valves of the outdoor unit

Gas leak check

Check with a leak detector or soap water whether gas leaks or not, from the pipe connecting section or cap of the valve.

REQUIREMENT

Use a leak detector manufactured exclusively for HFC refrigerant (R410A, R134a, etc.).

series “SPH”

26

7 REFRIGERANT PIPING

Heat insulating process

Perform heat insulating for pipes at liquid side and gas side separately.

In cooling time, temperature at both liquid and gas sides becomes lower.

Therefore, perform heat insulating process sufficiently to avoid dewing.

•For heat insulator of pipe at gas side, be sure to use one with

heat-resisting temp.120°C or more.

•Using the attached heat insulating pipe, perform heat insulating process

securely for pipe connecting part of the indoor units without clearance.

REQUIREMENT

Apply the heat insulation to the pipe connecting section of the indoor unit securely up to the root without exposure of the pipe.

(The pipe exposed to the outside causes water leak.)

Using tape,
fix the heat insulator.	Set notching upward.

Pipe side

(Required at the site)

Attached heat insulating pipe

8 ELECTRIC WORK

WARNING

1.Using the specified wires, ensure to connect the wires, and fix wires securely so that the external strength of the wires do not transmit to the connecting part of the terminals.

Incomplete connection or fixation may cause a fire, etc.

2.Be sure to connect earth wire. (Grounding work)

Do not connect the earth wire to gas pipe, city water pipe, lightning rod, or the earth wire of telephone. Incomplete grounding causes an electric shock.

3.For electric work, strictly follow to the Local Regulation in each country and the Installation Manual, and use an exclusive circuit.

Capacity shortage of power circuit or incomplete installation may cause an electric shock or a fire.

CAUTION

Be sure to install an earth leakage breaker.

If an earth leakage breaker is not installed, an electric shock may be caused.

REQUIREMENT

•For power supply wiring, strictly conform to the Local Regulation in each country.

•For wiring of power supply of the outdoor units, follow to the Installation Manual of each outdoor unit.

•Never connect 220–240V power to the terminal blocks (A, B, U1, U2, X, Y, etc.) for control wiring. (Otherwise, the system will be failed.)

•Perform the electric wiring so that it does not come to contact with the high-temperature part of the pipe. The coating may melt resulted in an accident.

•After connecting wires to the terminal blocks, provide a trap and fix wires with the wire clamp.

•Store the refrigerant piping line and control wiring line in the same line.

•Do not turn on the power of the indoor unit until vacuuming of the refrigerant pipes completes.

Power supply cord and communication wires specifications

Power supply cord and communication wires are procured locally.

For the power supply specifications, follow to the table below. If capacity is little, it is dangerous because overheat or seizure may be caused.

For specifications of the power capacity of the outdoor unit and the power supply wires, refer to the Installation Manual attached to the outdoor unit.

Indoor unit power supply

•For the power supply of the indoor unit, prepare the exclusive power supply separated from that of the outdoor unit.

•Arrange the power supply, earth leakage breaker, and main switch of the indoor unit connected to the same outdoor unit so that they are commonly used.

•Power supply cord specification : Cable 3-core 2.5mm², in conformity with Design 60245 IEC 57.

	Power supply		220–240V ~ 50Hz
			220V ~ 60Hz
Power supply	Power supply switch/Earth leakage breaker or power supply wiring/fuse rating for
	indoor units should be selected by the accummulated total current values of the indoor units.
	Power supply wiring	Below 20m	Twist wire : 2.0 mm²
		Below 50m	Twist wire : 3.5 mm²

Control wiring, Central controller wiring

•2-core with polarity wires are used for the Control wiring between indoor unit and outdoor unit and Central controller wiring.

•To prevent noise trouble, use 2-core shield wire.

•The length of the communication line means the total length of the inter-unit wire length between indoor and outdoor units added with the central control system wire length.

		Control wiring between indoor unit and	Wire size	(Up to 1000m) Twist wire : 1.25 mm²
		outdoor unit (2-core shield wire)		(Up to 2000m) Twist wire : 2.00 mm²
	Communication line
		Central control line wiring	Wire size	(Up to 1000m) Twist wire : 1.25 mm²
		(2-core shield wire)		(Up to 2000m) Twist wire : 2.00 mm²

Remote controller wiring

• 2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring.

	Remote controller wiring, remote	Twist wire: 0.5mm2	to 2.0mm2 × 2
	controller inter-unit wiring

	Total wire length of remote controller	In case of wired type only	Up to 500m
	wiring and remote controller inter-unit
		In case of wireless type included	Up to 400m
	wiring = L + L1 + L2 + … Ln
	Total wire length of remote controller inter-unit wiring = L1 + L2 + … Ln		Up to 200m

CAUTION

The remote controller wire (Communication line) and AC220–240V wires cannot be parallel to contact each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise, etc.

									“SPH”
	Indoor unit		Indoor unit		Indoor unit		Indoor unit
Remote									series
	controller
controller		L1		L2		Ln
wiring
	Remote	Remote controller inter-unit wiring				(Max. 8 units)

8 ELECTRIC WORK

Cable connection

REQUIREMENT

•Be sure to pass the wire through the wire connection port of the indoor unit.

•Keep a margin (Approx. 100mm) on a wire to hang down the electric parts box at servicing, etc.

•The low-voltage circuit is provided for the remote controller.

•Before remove the electric parts cover, remove the cover plate and air filter.

•Remove the cover of the electric parts box by taking off the mounting screws (2 positions) and pushing the hooking section. (The cover of the electric parts box remains hanged to the hinge.)

•Tighten the screws of the terminal block, and fix the wires with cord clamp attached to the electric parts box. (Do not apply tension to the connecting section of the terminal block.)

•Be sure to set a loop for the connecting wire of the storing part of the indoor unit electric parts; otherwise the electric parts box cannot be drawn out in service time.

•Mount the cover of the electric parts box without pinching wires.

Control wire

27

R

(L )

S

(N )

		Electric
		parts box
Power supply cord		Electric parts
Cable cramp	Remote controller wire	box cover
		Screw
		(2 positions)

Cover plate

Air filter

R S
(L)(N)	10

10
30	70

Earth line

Power supply cord

Remote controller wiring

•As the remote controller wire has no polarity, there is no problem if connections to indoor unit terminal blocks A and B are reversed.

<Wiring diagram>	Terminal block for
	remote controller
	wiring of indoor unit
	A
	B

Remote controller wire (Field supply)

Terminal block

ARemote

Bcontroller unit

Wiring between indoor and outdoor units

<Wiring example>

Outdoor Power supply	Outdoor Power supply
380V-415V ~ 50Hz	380V-415V ~ 50Hz
380V ~ 60Hz	380V ~ 60Hz

NOTE

An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header unit.

	Earth leakage			Earth leakage
	breaker			breaker
	Header outdoor unit			Header outdoor unit
Earth		Earth
terminal L1 L2 L3 N	U1 U2 U3 U4 U5 U6	terminal	L1 L2 L3 N	U1 U2 U3 U4 U5 U6
		Control wiring between outdoor units
	Control wiring between indoor and outdoor units
	Control wiring between indoor units
Indoor unit	Indoor unit			Indoor unit		Indoor unit
Earth	Earth			Earth		Earth
L N	U1 U2 A B	L N	U1 U2 A B	L N	U1 U2 A B	L N	U1 U2 A B

Indoor power supply

A

B

A

B

A

B

220-240V, ~50Hz

Remote controller

Remote controller

Remote controller

220V~60Hz

Earth leakage breaker	Pull box	Pull box	Pull box	“SPH”
power switch
Address setup				series

Set up the addresses according to the Installation Manual attached to the outdoor unit.

28

9 APPLICABLE CONTROLS

NOTIFICATION

When using the equipment at the first time, it will take a lot of time that the remote controller accepts an operation after power was on. However, it is not a trouble.

•Automatic address

•While automatic addressing, the operation cannot be performed on the remote controller.

•For automatic addressing, Max. 10 minutes (generally, approx. 5 minutes) are required.

•When power will be turned on after finish of automatic addressing;

•It will require Max. 10 minutes (generally, approx. 3 minutes) that outdoor unit starts operation after power was on.

As all have been set to [Standard] at the shipment, change the setup of the indoor unit if necessary.

To change the setup, use the main remote controller (wired remote controller).

*The setup change for wireless remote controller, sub remote controller, or remote controller-less system (Central control remote controller only is provided.) is impossible. In these cases, prepare and mount a separate main remote controller.

Exchange of applicable control setup

Basic operation procedure for setup exchange

Change the setup while operation of the equipment stops. (Be sure to stop the operation of a set.)

CODE No.

UNIT No.

R.C.

No.

4	TEMP.			ON / OFF	3
		TIMER SET	FAN	MODE
1		TIME	SWING/FIX	VENT	2
	FILTER
	RESET TEST	SET CL	UNIT
6					5

Procedure

Description

When pushing SET , CL , and TEST buttons simultaneously for 4 seconds or more, after a while, the display part

flashes as shown in the figure.

Check that the displayed item code is [10].

CODE No.

1

• If the item code indicates other than [10], push

TEST

button to erase

SETTING

UNIT

No.

the display, and then retry the operation from the first step.

R.C.

No.

(For some time after TEST button has been pushed, the operation of

the remote controller cannot be accepted.)

(In a group control, the firstly displayed

(* The display changes according

indoor unit No. becomes the header unit.)

to the indoor unit model.)

Every pushing

UNIT

button, the indoor unit No. in the group control is displayed successively.

2

Select an indoor unit of which setup to be changed.

In this time, the position of the indoor unit of which setup to be changed can

be confirmed because the fan and the flap of the selected indoor unit work.

3

Using

,

buttons of set temperature, specify the item

CODE No.

code [**].

Using ,

buttons of timer time, select set data [****].

No.

4

R.C.

Push SET button. In this time, if the display changes from flashing to lighting, the setup completes.

5

• To change the setup of an indoor unit other than the selected one, start operation from Procedure 2.

• To change the setup of another setup in the selected indoor unit, start operation from Procedure 3.

Pushing CL button clears the set up contents which have been already set. In this case, retry from Procedure 2.

When the setup finished, push TEST button. (The setup is determined.)

6	Pushing TEST button deletes the display and returns the status to
	normal stop status.
	(For some time after TEST button has been pushed, the operation of the
	remote controller cannot be accepted.)

Setup of external static pressure

Be sure to set up a tap change based upon the resistance (external static pressure) of the duct to be connected.

To set up a tap change, follow to the basic operation procedure (1 → 2 → 3 → 4 → 5 → 6 ).

•Specify [5d] to the item code in procedure 3 .

•For the setup data of procedure 4 , select a setup data of the external static pressure to be set up from the following table.

<Change on wired remote controller>

Setup data	External static pressure
0000	10 Pa	Standard (At shipment)
0001	20 Pa	High static pressure 1
0003	35 Pa	High static pressure 2
0006	50 Pa	High static pressure 3

In case of remote controller-less (Group control)

For setup to the high ceiling, there is selecting method by exchanging the short plugs on the indoor microcomputer P.C. board as shown in the following table other than selecting method by standard wired remote controller (sold separately). Utilize this method for remote controller-less (Group control) case.

However, when the setup to high ceiling has been once exchanged, it is required for returning it to 0000 to change the short plug to the standard (at shipment) position and rewrite data to the setup data 0000 from the wired remote controller sold separately though setup to 0001, 0003 or 0006 are freely available.

• Select by exchange of short plugs on the indoor											• Short plug position
P.C. board.											(CN112, CN111, CN110 from the left)
Short plug position
									Set data	External static pressure
Short Open
CN112 CN111						CN110
									0000	10 Pa (At shipment)
CN112 CN111						CN110
									0001	20 Pa
CN112 CN111						CN110
									0003	35 Pa
CN112 CN111						CN110
									0006	50Pa

series “SPH”

29

9 APPLICABLE CONTROLS

Change of lighting term of filter sign

Group control

According to the installation condition, the lighting term of the filter sign (Notification of filter cleaning) can be changed.

Follow to the basic operation procedure

(1 → 2 → 3 → 4 → 5 → 6 ).

•For the item code in Procedure 3 , specify [01].

•For the [Set data] in Procedure 4 , select the setup data of filter sign lighting terme from the following table.

Setup data	Filter sign lighting term
0000		None
0001	150H
0002	2500H	(At shipment from factory)
0003	5000H
0004	10000H

In a group control, a remote controller can control up to maximum 8 units.

•For cabling procedure and cables of the individual line (Identical refrigerant line) system, refer to “Electric work” in this Manual.

•Cabling between indoor units in a group is performed in the following procedure.

Connect the indoor units by connecting the remote controller inter-unit cables from the remote controller terminal blocks (A, B) of the indoor unit connected with a remote controller to the remote controller terminal blocks (A, B) of the other indoor unit.

(No polarity)

•For address setup, refer to the Installation Manual attached to the outdoor unit.

To secure better effect of heating

When it is difficult to obtain satisfactory heating due to installation place of the indoor unit or structure of the room, the detection temperature of heating can be raised. Also use a circulator, etc. to circulate heat air near the ceiling.

Follow to the basic operation procedure

(1 → 2 → 3 → 4 → 5 → 6 ).

•For the item code in Procedure 3 , specify [06].

•For the set data in Procedure 4 , select the setup data of shift value of detection temperature to be set up from the table below.

Setup data	Detection temp shift value
0000	No shift
0001	+1°C
0002	+2°C (At shipment from factory)
0003	+3°C
0004	+4°C
0005	+5°C
0006	+6°C

10 TEST RUN

	Before test operation	WARNING
	• Before turning on the power supply, carry out the following items.	To protect the compressor at
	1) Using 500V-megger, check there is 1MΩ or more between the
		starting time, keep power-ON
	terminal block of the power supply and the earth. If 1MΩ or less	condition before 12 hours or more.
	is detected, do not run the unit.

2)Check that all the valves of the outdoor unit are fully opened.

•Never push the electromagnetic contactor to carry out a forced test operation. (It is very dangerous because a protective device does not work.)

How to execute test operation

•To carry out a fan operation in a single indoor unit, turn off the power once, short CN72 on P.C. board, and then turn on the power again. (Start the unit in FAN mode.) In this case, do not forget to clear short-circuit of CN72 after test operation.

•Using the remote controller, check the operation in the usual operation. For the operation procedure, refer to the attached Owner’s Manual.

A forced test operation can be executed in the following procedure under condition of thermo-OFF of room temperature.

In order to prevent a serial operation, the forced test operation is released after 60 minutes and returns to the usual operation.

NOTE

Do not use a forced operation in cases other than test operation because it applies an excessive load to the air conditioner.

In case of wired remote controller

1, 5

TEMP.		ON / OFF
TIMER SET	FAN	MODE
TIME	SWING/FIX	VENT
FILTER
RESET TEST SET CL	UNIT

2, 4

3

Procedure

Description

Keep TEST button pushed for 4 seconds or more.

TEST

1 [TEST] is displayed on the display part and the selection of mode in the test mode is permitted.

2

Push

ON / OFF button.

MODE

Using

button, select the operation mode, [COOL] or [HEAT].

3

• Do not run the air conditioner in a mode other than [COOL] or [HEAT].

• The temperature controlling function does not work during test

operation.

• The detection of error is performed as usual.

4

After the test operation, push

ON / OFF button to stop the operation.

“SPH”

(Display part is same as procedure 1 )

5

Push TEST button to cancel (release from) the test operation mode.

([TEST] disappears on the display part and the status returns to a

series

normal stop status.)

30

10 TEST RUN

In case of wireless remote controller

Procedure

Description

Remove a small screw which fixes the nameplate of the receiver unit.

1 Remove the nameplate of the sensor section by inserting a minus screwdriver, etc into the notch at the bottom of the plate, and set the Dip switch to [TEST RUN ON].

Execute a test operation with button on the wireless remote controller.

2	•		, , and	LED flash during test operation.
	•	Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is invalid.

Do not use this method in the operation other than test operation because the equipment is damaged.

3	Use either COOL or HEAT operation mode for a test operation.
	* The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.
4	After the test operation finished, stop the air conditioner from the wireless remote controller, and return Dip
	switch of the receiver section as before.
	(A 60-minutes timer clearing function is attached to the receiver section in order to prevent a continuous test
	operation.)

Receiver unit

Spacer

M4 × 25 screw (2 pieces)

Notch Nameplate

Small screw

11 TROUBLESHOOTING

Confirmation and check

	When a trouble occurred in the air conditioner, the				CODE No.
	check code and the indoor unit No. appear on the		UNIT	No.
	display part of the remote controller.
	The check code is only displayed during the operation.		R.C.	No.
	If the display disappears, operate the air conditioner
	according to the following “Confirmation of error	Check code	Indoor unit No. in which
	history” for confirmation.
			an error occurred

Confirmation of error history

When a trouble occurred on the air conditioner, the	TEMP.		ON / OFF
error history can be confirmed with the following	2
procedure.	TIMER SET	FAN	MODE
(The error history is stored in memory up to 4 errors.)	TIME	SWING/FIX	VENT
This history can be confirmed from either operating	FILTER
status or stop status.	RESET TEST SET CL	UNIT
	3		1

Procedure	Description
	When pushing SET and TEST buttons simultaneously for 4 seconds or
	more, the right display appears.
	If [Service Check] is displayed, the mode enters in the error history			CODE No.
1	mode.		UNIT No.
	• [01: Order of error history] is displayed in CODE No. window.		R.C. No.
	• [Check Code] is displayed in CHECK window.

•[Indoor unit address in which an error occurred] is displayed in UNIT No.

	Every pushing	,	buttons, the error history stored in the memory is displayed in order.
2	The numbers in CODE No. indicates CODE No. [01] (Latest) → [04] (Oldest).
	CAUTION
	Do not push CL	button because all the error history of the indoor unit will be deleted.
3	After confirmation, push TEST button to return to the usual display.

series “SPH”