Toshiba MMY-MAP0802FT8, MMY-MAP1202FT8, MMY-MAP1002FT8 INSTALLATION MANUAL

FILE NO : A06-009

Quick reference

R410A

01 Refrigerant Piping

Allowable length of refrigerant pipe and height difference

Height difference between outdoor units H3 £ 5 m

Height difference between outdoor and indoor units H1 £ 50 m

Follower unit C

• Cautions concerned with installation/construction

1) The leading outdoor unit connected with the indoor

inter-unit pipe is made “A (Header unit)”.

2)

Set the units in order of the outdoor capacity.

(A (Header unit) > B > C > D)

3)

For the combination of the outdoor units, refer to

Header unit A

Follower unit B

“Combination of outdoor unit” list.

Outdoor unit

Note:

In case of connecting method <Ex.2>, a large amount of

refrigerant and refrigerant oil may return to the head unit.

T-Shape branching

Therefore, set the T-shape joint so that oil does not enter directly.

La

LA

Lb

Lc

main piping

<Ex.1> Header

Follower

Follower

Main connecting piping between outdoor units

unit A

unit B

unit C

Length corresponded to farthest piping

L1

between outdoor units LO £ 25 m

	Branching piping		L2	Branching header
	Connecting piping of							OK
1st
	indoor unit			L9
branching						<Ex.2>	Header	Follower	Follower
section	a	b		c			unit A	unit B	unit C
L3
				FS unit
	g	h	i	j	k
	Indoor unit			<Cooling only>		<Cooling only>
	Equivalent length corresponded to farthest piping L £ 150 m
	Equivalent length corresponded to farthest piping after 1st branching Li £ 50 m

Lj

NO GOOD

L4

L5

L6

L7

L8

Height difference between

indoor units H2 £ 35

d

e

f

FS unit

(Upper outdoor unit)

o

FS unit

Lh

l

m

n

Height difference between

Indoor unit

p

q

indoor units in group control

by one FS unit H4 £ 0.5 m

Indoor unit which FS unit control wiring is connected.

<Group control>

When connecting the plural indoor units to single FS unit.

• Allowable length/height difference of the refrigerant pipe

				Allowable value	Pipe section
		Total extension of pipe (Liquid pipe/real length)		300 m	LA + La + Lb + Lc + L1 + L2 + L3 + L4 + L5 + L6 + L7 + L8 + L9
					+ a + b + c + d + e + f + g + h + i + j + k + l + m + n + o+ p + q
		Farthest piping length L (*1)	Real length	125 m	LA + Lc + L1 + L3 + L4 + L5 + L6 + L7 + L8 + q
			Equivalent length	150 m
		Max. equivalent length of main piping		85 m	L1
	Pipe	Equivalent length of farthest piping from 1 st branching Li (*1)		50 m	L3 + L4 + L5 + L6 + L7 + L8 + q
		Max. real length of indoor unit connecting piping		30 m	a + g, b + h, c + i, d + l, e + m, f + m, f + n, j, k
	length
		Max. real length between FS unit and indoor unit (*2)		15 m	g, h, i, l, m, n, L7 + o
		Max. equivalent length of outdoor unit connecting pipe LO (*1)		25 m	LA + Lc (LA + Lb)
		Max. real length of outdoor unit connecting pipe		10 m	La, Lb, Lc
		Max. equivalent length between FS unit and indoor unit Lj		30 m	L7 + L8 + p, L7 + L8 + q
		Max. real length between FS unit and indoor unit which FS unit		15 m	L7 + o
		control wiring is connected Lh (*2)
			Upper outdoor unit	50 m	——
		Height between
		indoor unit and outdoor unit H1	Lower outdoor unit	30 m	——
	Height	Height between	Upper outdoor unit	35 m	——
	difference	indoor unit H2	Lower outdoor unit	15 m	——
		Height between outdoor units H3		5 m	——
		Height difference between indoor units in group control by one		0.5 m	——
		FS unit H4

*1 : The farthest indoor unit from 1st branch to be named C, and farthest indoor unit from 1st branch to be named (q). *2 : Attached connection cable can be used up to 5 m in pipe length between indoor unit and FS unit.

When the pipe length between indoor and FS unit exceeds 5 m, be sure to use the connection cable kit (RBC-CBK15FE).

• Restriction to the system

	Max. No. of combined outdoor units	3 units
	Max. capacity of combined outdoor units	84.0 kW
	Max. No. of connected indoor units	48 units
	Max. capacity of connected indoor units	H2 < 15 m	135% (*3)
		H2 > 15 m	105%
	Min. capacity of connected indoor units	Outdoor capacity : 70%

*3 : MMY-MAP1202FT8 up to 120%.

Note 1) Combination of outdoor unit : Header unit (1 unit) + Follow unit (0 to 2 units). Header unit is outdoor unit nearest to the connected indoor units.

Note 2) Install the outdoor units in order of capacity. (Header unit > Follow unit 1 > Follow unit 2)

Note 3) Refer to outdoor unit combination table in page 5.

Note 4) Piping to indoor units shall be perpendicular to piping to the head outdoor unit as <Ex. 1>. Do not connect piping to indoor units in the same direction of head outdoor unit as <Ex. 2>.

02

Addition of refrigerant

After vacuuming work, exchange the vacuum pump with the refrigerant bomb and then start the additional charging work of refrigerant.

Calculation of additional refrigerant charge amount

Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipe at the local site. For refrigerant to be charged in pipe at the local site, calculate the amount and charge it additionally.

Note) If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without addition of refrigerant.

		Outdoor unit Model							MMY-MAP0802FT8					MMY-MAP1002FT8				MMY-MAP1202FT8
		Charging amount (kg)													11.5
		Additional refrigerant		=	(	Real length				Additional refrigerant charge								Compensation by
		charge amount at local site				of liquid pipe ×				amount per 1m liquid pipe (Table 1) )							× 1.3 system HP (Table 2)
Example : Additional charge amount R (kg) = {(L1 × 0.025kg/m) + (L2 × 0.055kg/m) + (L3 × 0.105kg/m)} × 1.3
									L1 : Real total length of liquid pipe Ø6.4 (m)
									L2 : Real total length of liquid pipe Ø9.5 (m)
									L3 : Real total length of liquid pipe Ø12.7 (m)
									System : 10HP
Table-1								Table-2
Liquid			Additional refrigerant						Combined			Combined outdoor unit				C (Corrected refrigerant amount)
									(HP)					(HP)				(kg)
pipe dia.
			amount/1m liquid pipe (kg/m)
(mm)									8			8					2.0
									10			10					2.5
6.4			0.025
									12			12					3.0
9.5			0.055
									16			8		8				–1.5
12.7			0.105						18			10		8			0.0
									20			10		10			2.0
15.9			0.160
									24			8		8	8			–4.5
19.1			0.250						26			10		8	8			–3.0
									28			10		10	8			–1.5
22.2			0.350
									30			10		10	10		0.0

Charging of refrigerant

•Keeping valve of the outdoor unit closed, be sure to charge the liquid refrigerant into service port at liquid side.

•If the specified amount of refrigerant cannot be charged, open fully valves of outdoor unit at liquid and discharge/ suction gas sides, balance side operate the air conditioner in COOL mode under condition that valve at suction gas side is a little returned to close side, and then charge refrigerant into service port at suction gas side. In this time, choke the refrigerant slightly by operating valve of the bomb to charge liquid refrigerant.

The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.

•When refrigerant leaks and refrigerant shortage occurs in the system, recover the refrigerant in the system and recharge refrigerant newly up to the correct level.

REQUIREMENT

<Entry of refrigerant charge amount>

•Fill the additional refrigerant record column of the wiring diagram indication plate with the additional refrigerant amount at installation work, total refrigerant amount and the name of the service man who charged refrigerant at installation time.

•The total refrigerant amount means the total value of the refrigerant amount at shipment and the additional refrigerant amount at installation time. The refrigerant amount at the shipment is one described on the “Unit nameplate”.

03 Refrigerant Piping Diagram (Outdoor)

Inverter unit (8, 10, 12HP)

Model: MMY-MAP0802FT8, MAP1002FT8, MAP1202FT8

		Propeller fan
		FM Fan motor
	Sensor	(Right side)
	(TE1)
			Sensor
Strainer		Main heat exchanger	(TO)
Pulse motor valve		(Left side)
Solenoid valve
(SV12)		Main heat exchanger

(PMV1) (PMV2)	Strainer	Sub heat exchanger (Right side)
Check valve	(PMV3)	Sub heat exchanger (Left side)
	Check valve	Solenoid valve (SV11)				4-Way valve
Strainer
						Capillary
	Solenoid valve
						tube
	(SV5)
	Capillary	High-pressure		Check valve
	tube
		sensor
	Solenoid valve	Check joint			Solenoid valve
	(SV6)	Strainer			(SV2)
Sensor	Capillary tube					Capillary tube
			Oil
(TL)	Solenoid valve		separator
	(SV3D)		Strainer
	Capillary tube
	Solenoid valve	Check valve			Check valve Solenoid valve
	(SV41)					(SV42)
	High-pressure				Strainer	High-pressure
Liquid
tank	switch	Capillary			Solenoid valve	switch
	Sensor	tube			(SV3C)	Sensor
	(TD1)		Sensor			(TD2)
			(TK3)
Check	Compressor 1		Strainer		Strainer Compressor 2
	(Inverter)				(Inverter)
joint
			Check		Check
			valve		valve
		Capillary tube			Capillary tube
			Sensor		Sensor
			(TK1)		(TK2)
	Solenoid valve				Oil tank
		Sensor (TK4)
	(SV3E)
	Capillary tube					Capillary tube
Strainer	Strainer	Solenoid valve			Solenoid valve
		(SV3A)
	Strainer	Check valve			(SV3B)
					Check valve

Sensor

(TS1) Low-pressure

sensor

Sensor

(TS2)

Check

joint

Accumulator

Service valve		Service valve at
of balance pipe		discharge gas side
	Service	valve	Service	valve at
	at liquid side		suction gas side

04

Explanation of functional parts

	Functional part name					Functional outline
			(Connector CN324: Red)
		SV3A	Closed : Allows oil to collect/remain in the oil tank.
			Open		: Allows oil to exit the oil tank.
		SV3B	(Connector CN313: Blue)
			Open		: Allows oil to return to the outdoor unit via the balance pipe.
		SV3C	(Connector CN314: Black)
			Open		: Pressurizes the oil tank.
		SV3D	(Connector CN323: White)
			Open		: Supplies oil to the compressor from the oil separator.
		SV3E	(Connector CN323: White)
			Open		: Turns on during operation and balances oil between compressors.
			(Hot gas bypass) (Connector CN312: White)
		ASV2	1)	Low pressure release function
			2)	High pressure release function
	Solenoid valve		3) Gas balance function during stop time
			(Gas balance control for compressor start-up) (Connector CN311: Blue)
		SV41	1) For gas balance start
		SV42	2) High pressure release function
			3)	Low pressure release function
			(Connector CN310: White)
		SV5	1) Increase of No. of heating indoor units, Gas balance function in defrost time
			2)	Low-pressure balance function of discharge gas pipe during all cooling operation
		SV6	(Connector CN309: White)
			1)	Liquid bypass function for discharge temp. release (Cooling bypass circuit)
		SV11	(Connector CN322: White)
			1)	For shutdown discharge gas (During all cooling operation and defrost operation)
			(Connector CN319: White)
		SV12	1) Flow-rate control function of refrigerant to sub heat exchanger during simultaneous operation
			2)	Flow-rate control function of refrigerant to sub heat exchanger during defrost operation
			(Connector CN317: Blue)
	4-way valve		1)	Cooling/Heating selection
			2)	Reverse defrost
			3)	Main-/Sub-heat exchanger selection
			(Connector CN300, 301: White)
		PMV1, 2	1)	Super heat control function during all heating operation and mainly heating, partly cooling operation
			2)	Under-cool adjustment function during all cooling operation
	Pulse motor valve		3)	Divided flow control function during mainly cooling, partly heating operation
			(Connector CN302: Red)
		PMV3	1)	For flow-rate control of sub heat exchanger during simultaneous operation
				(Control function of heating divided flow)
			2)	A function preventive high pressure up during all cooling or all heating operation
	Oil separator		1)	Prevention for early drop of oil level (Decrease of flow-out of discharge oil to cycle)
			2)	Reserve function of surplus oil
			(TD1: Connector CN502: White, TD2: Connector CN503: Pink)
		TD1, TD2	1) Protection of compressor discharge temp.
			2)	Releasing of discharge temp.
		TS1	(Connector CN504: White)
			1)	Controls super heat of PMV1 and 2 during all heating operation and simultaneous operation
			(Connector CN522: Black)
		TS2	1) Controls indoor oil recovery during all cooling operation and mainly cooling, partly heating operation
			2)	Detects overheat of cycle.
	Temp. sensor		(Connector CN505: Green)
		TE	1) Controls defrost during all heating operation and simultaneous operation.
			2)	Controls outdoor fan during all heating operation and simultaneous operation.
		TK1, TK2,	æ	TK1: Connector CN514: Black,		TK2: Connector CN515: Green,	ö
			è	TK3: Connector CN516: Red,		TK4: Connector CN523: Yellow	ø
		TK3, TK4
			1)	Judges oil level of compressor.
		TL	(Connector CN521: White)
			1)	Detects under-cool during all cooling operation and simultaneous operation.
		TO	(Connector CN507: Yellow)
			1)	Detects external ambient temperature.

05 Continued

Functional part name			Functional outline
		(Connector CN501: Red)
		1)	Detects high pressure and uses it to control capacity of compressor.
		2)	Detects high pressure during all cooling operation and uses it to control fan when
	High pressure sensor		cooling with low outside air.
		3)	Detects under-cool of the indoor unit of which heating thermo.-ON during all heating
Pressure sensor			operation and simultaneous operation.
		4)	Controls outdoor fan rpm during mainly cooling, part heating operation.
		(Connector CN500: White)
		1)	Detects low pressure and uses it to control capacity of compressor during all cooling
	Low pressure sensor		operation and simultaneous operation
		2)	Detects low pressure and uses it to controls super heat during all heating operation
			and simultaneous operation
	Compressor case heater	(Compressor 1 Connector CN316: White, Compressor 2 Connector CN315: Blue)
		1)	Prevents liquid accumulation in the compressor
Heater
	Accumulator case heater	(Connector CN321: Red)
		1)	Prevents liquid accumulation to accumulator
Balance pipe		1) Oil balancing pipe between outdoor unit (This unit does not use this Balance pipe.)

<Operation mode>

			Operation mode	Outline
	1.	All Indoor Unit(s) Operating for Cooling		Only cooling operation without heating operation
				Outdoor heat exchanger (Main heat exchanger) is used as condenser.
	2.	All Indoor Unit(s) Operating for Heating		Only heating operation without cooling operation
				Outdoor heat exchanger (Main heat exchanger) is used as evaporator.
	3.	Simultaneous operation		MIU for simultaneous operation
			3-1. Mainly cooling, partly heating operation	Cooling/heating simultaneous operation with subjective cooling operation
				Outdoor heat exchanger (Sub heat exchanger) is used as condenser.
			3-2. Mainly heating, partly cooling operation	Cooling/heating simultaneous operation with subjective heating operation
				Outdoor heat exchanger (Main heat exchanger) is used as evaporator.
	4.	Defrost		Using reversing operation of 4-way valve, ice of the outdoor heat
				exchanger is dissolved with single cooling cycle.

		06
Configuration of outdoor unit heat exchanger	Flow Selector Unit (FS Unit)
	RBM-Y1122FE
	Liquid pipe Discharge gas pipe	Suction gas pipe

Propeller fan		Strainer		Strainer
	Capillary			Capillary
				tube
	tube			SVS
Fan motor	Check	SVD		Capillary
				tube
	valve
			SVDD	SVSS
				Strainer

Main heat exchanger	To indoor	To indoor
	liquid side	gas side

		RBM-Y1802FE
Wind	Wind	* RBM-Y1801FE has two “SVS” valves.

		Liquid pipe	Discharge gas pipe		Suction gas pipe
Sub heat	Sub heat		Strainer		Strainer
exchanger	exchanger	Capillary		Capillary
					tube
		tube		Capillary
		Check	SVD
					tube
		valve			SVS SVS
			SVDD		SVSS
					Strainer
Front side	Rear side
(Right)	(Left)	To indoor			To indoor
		liquid side			gas side

RBM-Y2802FE

* RBM-Y2802FE has three “SVS” valves and two “SVD”.

Liquid pipe

Discharge gas pipe

Suction gas pipe

	Strainer	Strainer
Capillary		Capillary
		tube
tube		Capillary
Check
		tube
valve	SVD	SVS SVS SVS
	SVDD	SVSS
		Strainer

To indoor	To indoor
liquid side	gas side

Functional part name			Functional outline
	SVD	(Discharge gas block valve)
		1)	High pressure gas circuit during heating operation
	SVS	(Suction gas block valve)
		1)	Low pressure gas circuit during cooling operation
Solenoid valve		(Pressure valve)
	SVDD	1)	For pressurizing when No. of heating indoor units increases.

(Reducing valve)

SVSS 1) For recovery of refrigerant of the stopped indoor unit of which cooling thermo-OFF 2) For reducing pressure when No. of heating indoor units decreases.

07 System Refrigerant Cycle Drawing

Refrigerant piping systematic diagram in system

<Selection of operation mode>

For the selection of each operation mode, see the table below:

“Stop Once” means the system does not operate for 3 minutes after operation before update has stopped.

			After update
		All cooling operation	Mainly cooling, partly	Mainly heating, partly	All heating operation
			heating cooperation	cooling operation
		(OFF)	(ON)	(ON)	(ON)
	All cooling operation		Operation continues	Operation continues	Stop once
	(OFF)		(OFF → ON)	(OFF → ON)	(OFF → ON)
	Mainly cooling, partly	Operation continues		Operation continues	Operation continues
Before	heating cooperation (ON)	(ON → OFF)		(As ON)	(As ON)
update	Mainly heating, partly	Stop Once	Operation continues		Operation continues
	cooling operation (ON)	(ON → OFF)	(As ON)		(As ON)
	All heating operation	Stop Once	Operation continues	Operation continues
	(ON)	(ON → OFF)	(As ON)	(As ON)

Note) Phrases in parentheses in the table indicate status of 4-way valve.

<ON-OFF list of Flow Selector Unit (FS Unit) valve>

Outline of control valve output of FS unit (Basic operation)

Indoor operation mode	SVD	SVDD
	(High pressure	(Pressure valve
	circuit valve)	<For delay>)

SVS	SVSS
(Low pressure	(Reducing valve
circuit valve)	<For delay>)

	1.	Stop (Remote controller OFF)	OFF	OFF	OFF	ON
		<All system stop>	<OFF>	<OFF>	<OFF>	<OFF>
	2.	Cooling thermo-OFF	OFF	OFF	OFF	ON
	3.	Cooling thermo-ON	OFF	OFF	ON	ON
	4.	Heating thermo-OFF
			ON	OFF	OFF	OFF
	5.	Heating thermo-ON
	6.	“E04” error is being detected	OFF	ON	OFF	OFF

Check Code List

08

Main

remote Check code name controller

display

	E01	Communication error between indoor and remote controller
		(Detected at remote controller side)
	E02	Sending error of remote controller
	E03	Communication error between indoor and remote controller
		(Detected at indoor side)
	E04	Communication circuit error between indoor and outdoor
		(Detected at indoor side)
	E06	Decrease of No. of indoor units
	E07	Communication circuit error of indoor and outdoor
		(Detected at outdoor side)
	E08	Duplicated indoor addresses
	E09	Duplicated master remote controllers
	E10	Communication error in indoor P.C. B ass’y
	E12	Automatic address start error
	E15	No indoor automatic address
	E16	No. of connected indoor units / Capacity over
	E18	Communication error between indoor header and follower units
	E19	Outdoor header units quantity error
	E20	Other line connected during automatic address
	E23	Sending error in communication between outdoor units
	E25	Duplicated follower outdoor addresses
	E26	Decrease of No. of connected outdoor units
	E28	Follower outdoor error
	E31	IPDU communication error
	F01	Indoor TCJ sensor error
	F02	Indoor TC2 sensor error
	F03	Indoor TC1 sensor error
	F04	TD1 sensor error
	F05	TD2 sensor error
	F06	TE1 sensor error
	F07	TL sensor error
	F08	TO sensor error
	F10	Indoor TA sensor error
	F12	TS1, TS2 sensor error
	F13	TH sensor error
	F15	Outdoor temp sensor misconnecting (TE, TL)
	F16	Outdoor pressure sensor misconnecting (Pd, Ps)
	F23	Ps sensor error
	F24	Pd sensor error
	F29	Indoor other error
	F31	Outdoor EEPROM error
	H01	Compressor break down
		Magnet switch error
	H02	Overcurrent relay operation
		Compressor error (lock)
	H03	Current detect circuit system error

Main

remote Check code name controller

display

	H04	Comp 1 case thermo operation
	H06	Low pressure protective operation
	H07	Oil level down detective protection
	H08	Oil level detective temp sensor error
	H14	Comp 2 case thermo operation
		Oil level detective circuit error
	H16	Magnet switch error
		Overcurrent relay operation
	L03	Duplicated indoor header units
	L04	Duplicated outdoor line addresses
	L05	Duplicated indoor units with priority
		(Displayed on indoor unit with priority)
	L06	Duplicated indoor units with priority
		(Displayed in unit other than indoor unit with priority)
	L07	Group line in individual indoor unit
	L08	Indoor group/Address unset
	L09	Indoor capacity unset
	L10	Outdoor capacity unset
	L17	Inconsistency error of outdoor units
	L18	FS unit error
	L20	Duplicated central control addresses
	L28	Over No. of connected outdoor units
	L29	No. of IPDU error
	L30	Auxiliary interlock in indoor unit
	L31	IC error
	P01	Indoor fan motor error
	P03	Discharge temp TD1 error
	P04	High-pressure SW detection error
	P05	Phase-missing detection / Phase order error
	P07	Heat sink overheat error
	P10	Indoor overflow error
	P12	Indoor fan motor error
	P13	Outdoor liquid back detection error
	P15	Gas leak detection
	P17	Discharge temp TD2 error
	P19	4-way valve inverse error
	P20	High-pressure protective operation
	P22	Outdoor fan IPDU error
	P26	G-TR short protection error
	P29	Comp position detective circuit system error
	P31	Other indoor unit error (Group follower unit error)

—Error in indoor group

—AI-NET communication system error

—Duplicated network adaptors

09 Address Setup

Pre-check for address setup

<Check on outdoor unit>

1.Check that all the rotary switches, SW01, SW02, and SW03 on the interface P.C. board of the outdoor unit are set up to “1”.

2. If other error code is displayed on 7-segment [B], remove the cause of trouble referring to “9. Troubleshooting”.

3.Check that [L08] is displayed on 7-segment display [B] on the interface P.C. board of the outdoor unit. (L08: Indoor address unset up)

(If the address setup operation has already finished in service time, etc, the above check code is not displayed, and only [U1] is displayed on 7-segment display [A].)

7-segment display [A]

7-segment display [B]

Interface P.C. board

SW01 SW02 SW03

<Check on indoor unit>

1.Display check on remote controller (In case of wired remote controller)

Check that a frame as shown in the following left figure is displayed on LC display section of the remote controller.

GOOD			NO
			GOOD
TEMP.		ON / OFF	TEMP.		ON / OFF
TIMER SET	FAN	MODE	TIMER SET	FAN	MODE
TIME	SWING/FIX	VENT	TIME	SWING/FIX	VENT
FILTER			FILTER
RESET TEST SET CL	UNIT		RESET TEST SET CL	UNIT
Normal status			Abnormal status
(Power and operation stop)			(Power is not normally turned on.)

If a frame is not displayed as shown in the above right figure, the power of the remote controller is not normally turned on. Therefore check the following items.

•Check power supply of indoor unit.

•Check wiring between indoor unit and remote controller.

•Check whether there is cutoff of cable around the indoor control P.C. board or not, and check connection failure of connectors.

•Check failure of transformer for the indoor microcomputer.

10

Automatic Address Setup

Without central control : To the address setup procedure 1 With central control : To the address setup procedure 2

(However, go to the procedure 1 when the central control is performed in a single refrigerant line.)

(Example)	In case of central control in a single refrigerant line	In case of central control over refrigerant lines
Address setup procedure	To procedure 1	To procedure 2
Cable systematic diagram

Outdoor	Central	Outdoor	Central	Outdoor		Outdoor	Central
	remote controller		remote controller				remote controller
Indoor	Indoor	Indoor	Indoor	Indoor	Indoor	Indoor	Indoor

Remote	Remote	Remote	Remote	Remote	Remote	Remote	Remote
controller	controller	controller	controller	controller	controller	controller	controller

Address setup procedure 1

1.Turn on power of indoor/outdoor units.

(In order of indoor → Outdoor)

2. After approx. 1 minute, check that U. 1. L08 (U. 1. flash) is displayed in 7-segment display section on the interface P.C. board of the outdoor unit.

3.Push SW15 to start the setup of the automatic addressing. (Max. 10 minutes for 1 line (Usually, approx. 5 minutes))

4. When the count Auto 1 → Auto 2 → Auto 3 is displayed in 7-segment display section, and it changes from U. 1. - - - (U. 1. flash) to

U.1. - - - (U. 1. light) , the setup finished.

5.When performing an automatic address setup on a single refrigerant line with central control, connect relay connected between [U1, U2] and [U3, U4] terminals in the header unit.

REQUIREMENT

•When a group control is performed over the multiple refrigerant lines, be sure to turn on the power supplies of all the indoor units connected in a group at the time of address setup.

Header unit interface P.C. board

3

SW04 SW05 SW15

2, 4

D600 D601 D602 D603 D604

SW01 SW02 SW03

1

1

1

5

		U3 U4	U5 U6
	For internal	For wiring of	For internal
	wiring between	central control	wiring between
	indoor and	system	outdoor units
	outdoor

•If turning on the power for each refrigerant line to set up address, a header indoor unit is set for each line. Therefore, an alarm code “L03” (Duplicated header indoor units) is output in operation after address setup. In this case, change the group address from the wired remote controller for only one header unit is set up.

Header unit interface P.C. board

	ON		3	4	ON		3	4		ON			3	4	ON		3	4
	1	2			1	2				1		2			1	2
		SW11				SW12						SW13				SW14
ON		3	4	ON		3	4		ON			ON		3	4	ON		3	4
1	2			1	2				1			1	2			1	2
	SW06				SW07				SW08				SW09				SW10

	(Example)	Group control over
		multiple refrigerant lines

Cabling systematic
diagram	Outdoor		Outdoor
	Indoor	Indoor	Indoor	Indoor

Remote	Remote	Remote	Remote
controller	controller	controller	controller

11 Continued

Address setup procedure 2

1.Using SW13 and 14 on the interface P.C. board of the outdoor unit in each system, set up the address for each system. (At shipment from factory: Set to Address 1)

Note) Be careful not to duplicate addresses with the other refrigerant line.

Line address switch on outdoor interface P.C. board

(¡: Switch ON, × : Switch OFF)

Line		SW13				SW14
address	1	2	3	4	1	2	3	4
1				×	×	×	×	×
2				×	¡	×	×	×
3				×	×	¡	×	×
4				×	¡	¡	×	×
5				×	×	×	¡	×
6				×	¡	×	¡	×
7				×	×	¡	¡	×
8				×	¡	¡	¡	×
9				×	×	×	×	¡
10				×	¡	×	×	¡
11				×	×	¡	×	¡
12				×	¡	¡	×	¡
13				×	×	×	¡	¡
14				×	¡	×	¡	¡

Line		SW13				SW14
address	1	2	3	4	1	2	3	4
15				×	×	¡	¡	¡
16				×	¡	¡	¡	¡
17				¡	×	×	×	×
18				¡	¡	×	×	×
19				¡	×	¡	×	×
20				¡	¡	¡	×	×
21				¡	×	×	¡	×
22				¡	¡	×	¡	×
23				¡	×	¡	¡	×
24				¡	¡	¡	¡	×
25				¡	×	×	×	¡
26				¡	¡	×	×	¡
27				¡	×	¡	×	¡
28				¡	¡	¡	×	¡

: Is not used for setup of system address. (Do not change setup.)

2.Check that the relay connectors between [U1, U2] and [U3, U4] terminals are not connected in all the outdoor units to which the

central control is connected.

(At shipment from factory: Connector not connected)

3.Turn on power of indoor/outdoor. (In order of indoor → outdoor)

4.After approx. 1 minute, check that 7-segment display is

	U.1.L08 (U.1. flash)	on the interface P.C. board of the outdoor unit.
5.	Push SW15 to start the setup of automatic addressing.
	(Max. 10 minutes for 1 line (Usually, approx. 5 minutes))		2
6.	When the count Auto 1 → Auto 2 → Auto 3 is displayed in			U1 U2	U3 U4	U5 U6
	7-segment display section, and it changes from			For internal	For wiring of	For internal
	U. 1. - - - (U. 1. flash)	to U. 1. - - - (U. 1. light) , the setup finished.		wiring between	central control wiring between
				indoor and	system	outdoor units
				outdoor

7.Procedure 4. to 6. are repeated in other refrigerant lines.

8.How to set up the terminal resistance

When all the address setups have finished in the same refrigerant circuit system, put the terminal resistance in the same central

control line into one.	Header unit interface P.C. board
• Remain only SW30-2 of the header outdoor unit with address 1 as		ON
		1 2
ON. (With end terminal resistance)			SW30
• Set up SW30-2 of the other header outdoor units to OFF.		SW30
(Without terminal resistance)

9.Connect the relay connector between [U1, U2] and [U3, U4] of the header unit for each refrigerant line.

10.Then set up the central control address.

(For the central control address setup, refer to the Installation manual of the central control devices.)

	ON		3	4	ON		3	4		ON			3	4	ON		3	4
	1	2			1	2				1		2			1	2
		SW11				SW12						SW13				SW14
ON		3	4	ON		3	4		ON			ON		3	4	ON		3	4
1	2			1	2				1			1	2			1	2
	SW06				SW07				SW08				SW09				SW10