Toshiba SMMS-e Quick Reference

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Quick Reference

EU Model

Cooling type

Heat pump type

Q18-001

R410

Refrigerant Piping

Refrigerant Piping Systematic

Address Setup

Test Operation

Troubleshooting

in Test Operation

Monitoring Function

NFC (Wave Tool)

Refrigerant Leakage Detection

Service Support Function

Backup Operation

Outdoor Interface P.C board

Leaking/Clogging

Troubleshooting

Refrigerant Piping

Additional refrigerant

After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant.

Calculation of additional refrigerant charge amount Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site. For refrigerant to be charged in pipes 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 additional refrigerant.

Outdoor unit type MAP080 MAP100 MAP120 MAP140 MAP160 MAP180 MAP200 MAP220

Charged amount (kg) 11.5

Cooling only model

Outdoor unit type MAP080 MAP100 MAP120 MAP140 MAP160 MAP180 MAP200 MAP220

Charged amount (kg) 5.115.01

Additional refrigerant charge amount at site = [1] + [2] + [3] [1]. Compensation by system HP (Table 1) [2]. Additional refrigerant charge amount Indoor unit (Table 2) [3]. (Real length of liquid pipe × Additional refrigerant charge amount per liquid pipe 1 m (Table 3)) × 1.2

For HT8P - E model

Table 1

System

Combination

Charged

refrigerant (kg)

Compensation by

System HP

HP HP kg

Standard model

8 8 – – 11.5 -3.5 10 10 – – 11.5 -3.5 12 12 – – 11.5 -1.5 14 14 – – 11.5 -1.0 16 16 – – 11.5 -0.5 18 18 – – 11.5 1.5 20 20 – – 11.5 1.5 22 22 – – 11.5 1.5 24 12 12 – 23 -3.0 26 14 12 – 23 -2.5 28 16 12 – 23 -2.0 30 16 14 – 23 -1.5 32 16 16 – 23 -1.0 34 18 16 – 23 1.0 36 20 16 – 23 1.0 38 22 16 – 23 1.0 40 20 20 – 23 3.0 42 22 20 – 23 3.0 44 22 22 – 23 3.0 46 16 16 14 34.5 -6.5 48 16 16 16 34.5 -6.5 50 18 16 16 34.5 -0.5 52 20 16 16 34.5 -0.5 54 22 16 1

6 34.5 -0.5 56 20 20 16 34.5 2.5 58 22 20 16 34.5 2.5 60 22 22 16 34.5 2.5

High efficiency

model

20 10 10 – 23 -7.0 22 12 10 – 23 -7.0 36 12 12 12 34.5 -12.5 38 14 12 12 34.5 -10.5 40 14 14 12 34.5 -8.5 42 14 14 14 34.5 -4.5 44 16 14 14 34.5 -4.5 54 20 20 14 34.5 1.5

<Cooling,Heat pump type>

Refrigerant Piping

<Cooling,Heat pump type>

Table 2 (For HT8P-E, T8P-E model)

Additional refrigerant charge amount Indoor unit

Standard Indoor

unit

Fresh Air Intake

Hot water

Modulendoor Unit

Air to Air Heat

exchanger with

DX-coil

Additional refrigerant charge amount kg/HP 0.4 0.2 0 0.2

Table 3 (For HT8P, HT7P, T8P, T7P model)

Pipe dia. at liquid side mm Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0 Ø22.2 Additional refrigerant amount/1m kg/m 0.025 0.055 0.105 0.160 0.250 0.350

Charging of refrigerant

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

liquid side.

• If the specified amount of refrigerant cannot be charged, fully open the valves of the outdoor unit at liquid and

gas sides

, operate the air conditioner in COOL mode, and then charge refrigerant into service port at the gas

side. In this time, choke the refrigerant slightly by operating the valve of the canister to charge liquid refrigerant.

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

Additional refrigerant charge amount

MMY-MAP***6T8P-E

Additional refrigerant charge amount at site = [1] + [2] + [3]

[1]. Compensation by system HP (Table 1)

[2]. Additional refrigerant charge amount Indoor unit (Table 2)

[3]. (Real length of liquid pipe × Additional refrigerant charge amount per liquid pipe 1 m (Table 3) ) × 1.2

Table 1

Space saving model High efficiency / High Diversity model

System Combination

Charged

refrigerant

Compensation

by System

System Combination

Charged

refrigerant by System

HP HP kg kg HP HP kg kg

8 8

10.5 -3.5

20 10 10 21 -7.0

-7.0

12 10 21 12 12 12 31.5

32.5

-12.5 14 12 12 -10.5 14 14 12 33.5 -8.5 14 14 14 34.5

34.5

-4.5

16 14 14 20 20 14 34.5 1.5

10 10

10.5 -3.5

12 12

10.5 -1.5

14 14

11.5 -1.0

16 16

11.5 -0.5

11.5 1.5

20 20

11.5 1.5

22 22

11.5 1.5

24 12 12

21 -3.0

26 14 12

22 -2.5

28 16 12

22 -2.0

30 16 14

23 --1.5

32 16 16

23 1.0

34 18 16

23 1.0

36 20 16

23 1.0

38 22 16

23 1.0

40 20 20

23 3.0

42 22 20

23 3.0

44 22 22

23 3.0

46 16 16 14

34.5 -6

48 16 16 16

34.5 -6.5

50 18 16 16

34.5 -0.5

52 20 16 16

34.5 -0.5

54 22 16 16

34.5 -0.5

56 20 20 16

34.5 2.5

58 22 20 16

34.5 2.5

60 22 22 16

34.5 2.5

Note : 14HP* = MMY-MAP1406T8P , MMY-MAP1406T7P

18HP* =

MMY-MAP1806T8P , MMY-MAP1806T7P

Compensation

When the system is charged with refrigerant at the factory,

the amount of refrigerant need

ed for the pipes at the site

is not included. Therefore, calculat

e the additional amount needed and add the required amount to the system.

(Calculation)

0806

10.5kg 10.5kg 10.5kg 10.5kg 11.5kg 11.5kg 11.5kg 11.5kg 11.5kg 11.5kg

1006

1206 14B6 1406

Cooling only model

Refrigerant amount

charged in factory

18B6 1806 2006 22061606

For T8P,T7P model

Refrigerant Piping

Allowable length of refrigerant pipes and allowable height difference between units

System restriction

a b c d e

(j)

Height difference between outdoor units H3 ≤ 5 m

For HT8P - E

utdoor unit

Header

unit

Follower

unit

C Follower unit

Outdoor unit connecting pipes

Outdoor unit connection piping kit (For linking of outdoor units)

The longest piping between outdoor units: LO ≤ 25 m

Main piping L1

Height difference between outdoor and indoor units: H1 ≤ 70 m

First branching section

Branching header

Y-shaped branching joint

Indoo

r unit connecting

pipe

Indoor unit

The longest piping length: L ≤ 235 m

The longest piping length from the

first branch: Li

≤ 90 m

Y-shaped branching joint

Indoor unit

Height difference between indoor units: H2 ≤ 40 m

stinu 3 ot pUnoitanibmoc tinu roodtuO

Note (*1):(D) is outdoor unit furthest from the 1st branch and (j) is the indoor unit furthest from the 1st branch. (*2) :If the height difference (H1) between indoor and outdoor unit exceeds 3 m, set 65 m or less. (*3) :If the max. combined outdoor unit capacity is 54HP or more, then max. equivalent length is 70 m or less (real length is 50 m or less). (*4) :If the height difference (H2) between indoor units exceeds 3 m, set 50 m or less.

PH 06 ot pUstinu roodtuo fo yticapac latoT

stinu 46 ot pUnoitcennoc tinu roodnI

Total capacity of indoor units (varies depending on the height difference between indoor units.)

H2 ≤ 15m 135% of outdoor units’ capacity

15m < H2 105% of outdoor units’ capacity

<Cooling,Heat pump type>

Refrigerant Piping

a b c d e

(j)

Height difference between outdoor units H3 ≤ 5 m

Outdoor unit A

Header

unit

Follower

unit

C Follower unit

Outdoor unit connecting pipes

Outdoor unit connection piping kit (For linking of outdoor units)

The longest piping between outdoor units: LO ≤ 25 m

Main piping L1

Height difference between outdoor and indoor units: H1 ≤ 70 m

First branching section

Branching header

Y-shaped branching joint

Indoo

r unit connecting

pipe

Indoor unit

The longest piping length: L ≤ 235 m

The longest piping length from the

first branch: Li

≤ 90 m

Y-shaped branching joint

Indoor unit

Height difference between indoor units: H2 ≤ 40 m

stinu 3 ot pUnoitanibmoc tinu roodtuO

PH 06 ot pUstinu roodtuo fo yticapac latoT

stinu 46 ot pUnoitcennoc tinu roodnI

Total capacity of indoor units (varies depending on the height difference between indoor units.)

H2 ≤ 15m 135% of outdoor units’ capacity

15m < H2 105% of outdoor units’ capacity

<Cooling,Heat pump type>

For T8P - E

Allowable length of refrigerant pipes and allowable height difference between units

System restriction

Refrigerant Piping

• Set the outdoor unit first connected to the bridging pipe to the indoor units as the header unit.

• Install the outdoor units in order of their capacity codes: A (header unit) B C

• When connecting gas pipes to indoor units, use Y-shaped branching joints to keep pipes level.

• When piping to outdoor units using Outdoor unit connection piping kits, intersect the pipes to the outdoor unit and those to

indoor units at a right angle as shown in figure 1 on “Installation of the outdoor unit”. Do not connect

them as in figure 2 on “Installation of the outdoor unit”.

(*1) : (C) is outdoor unit furthest from the 1st branch and (j) is the indoor unit furthest from the 1st branch. (*2) : If the height difference (H1) between indoor and outdoor unit exceeds 3m, set 65m or less. (*3) : If the max. combined

outdoor unit capacity is 46HP or more, then max. equivalent length is 70m or less (real length is 50m or less). (*4) : If the height difference (H2) between indoor units exceeds 3m, set 50m or less. (*5) : If the height difference (H2) between indoor units exceeds 3m, set 30m or less. (*6) : Total charging refrigerant is 140kg or less. (*7) : Extension up till 90m is possible with conditions below.

Item

Allowable

value

Piping section

Piping length

Total extension of pipe (Liquid pipe, real length)

Below 34HP 300m

LA + LB + La + Lb + Lc+ L1 + L2 + L3 + L4+ L5 +L6 + L7 + a + b + c + d + e + f + g + h + i + j

34HP or more 1000m (*6)

Farthest piping Length L (*1)

Equivalent

length

235m

LA+ L1 + L3 + L4 + L5 + L6 + j

Real length 190m

Equivalent length of farthest piping from 1st branching Li (*1)

90m (*2) L3 + L4 +

L5 + L6 + j

Equivalent length of farthest piping between outdoor units LO

25m LA + Lc(LA + Lb)

Max. equivalent length of main piping

Equivalent

length

120m (*3)

Real length 100m (*3)

Max. equivalent length of outdoor unit connecting piping

10m Lc(La, Lb)

Max. real length of indoor unit connecting piping 30m a, b, c, d, e, f, g, h, i, j Max. equivalent length between branches 50m L2, L3, L4, L5, L6, L7

Difference i

height

Height between indoor and outdoor units H1

Upper outdoor

unit

–

70m

(*4, *7)

Lower outdoor

unit

–)5*( m04

–m042H stinu roodni neewteb thgieH –m53H stinu roodtuo neewteb thgieH

Liquid piping

▼Figu re 1

Main pipe

Header unitAFollower unitBFollower unit

To the indoor unit

Correct

▼ Figu re 2

Main pipe

Header unitAFollower unitBFollower unit

To the indoor unit

Incorr ect

NO GOOD

- Outdoor Temperature Cooling : 10°C to 46°C (Dry-bulb temp.) Heating : -5°C to 15.5°C (Wet-bulb temp.)

- Equivalent length of farthest piping from 1st branching Li<50m

- Real length of main piping L1<100m

- Height difference between indoor units H2<3m

- Total capacity of combined indoor units : 90%-105%

- Single CDU, and up to 20HP

- Minimum capacity of connectable indoor unit : 4HP or Larger

<Cooling,Heat pump type>

Cautions for installation

Allowable length and allowable height difference of refrigerant piping

Refrigerant Piping

(1)(1)

(8)

(2)

(6)

(4)

(6)

(5) (5) (5) (5)

(4)

(6)

(4)

(5)(5)(5)(5)(5)

He ade r unit A

F ollower unit B

F ollower unit C

Outdoor unit

(2) Balance pipes Ø9.5

(1) Outdoor unit c onnec ting pipes

(3) Main piping

(8) Outdoor unit c onnec tion piping kit (For linking of outdoor units)

(4) Branching pipe

F irst branch

Y-s hape branc hing joint

(7) Branching hea der

(6) Y-shaped branching joint

(5) Indoor unit connecting pipe

Indoor unit

<Cooling,Heat pump type>

Selection of refrigerant piping

Refrigerant Piping

<Cooling,Heat pump type>

skrameRezis epip fo noitceleSemaNstrap gnipiP.oN

(1)

Outdoor unit

↓

Outdoor unit

connection piping

kit

Outdoor unit

connecting pipe

Connectin g pipe size of o utdoor u nit

Type Gas si de Liquid side

MMY-MAP0806* Ø19.1 Ø12.7 MMY-MAP1006* Ø22.2 Ø12.7 MMY-MAP1206* Ø28.6 Ø12.7 MMY-MAP1406* Ø28.6 Ø15.9 MMY-MAP1606* Ø28.6 Ø15.9 MMY-MAP1806* Ø28.6 Ø15.9 MMY-MAP2006* Ø28.6 Ø15.9 MMY-MAP2206* Ø28.6 Ø19.1

Same as connecting pipe size of the o

(

MMY-MAP14B6* use table

MMY-MAP1206*)

(

MMY-MAP18B6* use table

MMY-MAP1606*)

utdoor unit.

(2)

Between Outdoor

unit connection

piping kits

Main connecting

piping between

outdoor units

Piping si ze for connecting pi ping between outdoor units

Total capacity codes of the total

outdo or uni ts at th e downstream

side

Gas

side

Liqui d

side

Balance

pipe

Equivalent

to HP

Equivalent to capac ity

16 to below 22 45.0 to below 61.5 Ø28.6 Ø15.9

Ø9.5

22 to below 24 61.5 to below 67.0 Ø28.6 Ø19.1 24 to below 26 67.0 to below 73.0 Ø34.9 Ø19.1 26 to below 36 73.0 to below 100.0 Ø34.9 Ø19.1

36 or more 100.0 or more Ø41.3 Ø22.2

Pipe size differs based on the total

capacity code value of o

utdoor unit at the

downstream side.

Refrigerant piping (Continued)

<Cooling, Heat pump type >

No. Piping parts Name Selection of pipe size Remarks

(1)

Outdoor unit

↓

Outdoor unit

connection piping

kit

Outdoor unit

connecting pipe

Connecting pipe size of outdoor unit

Type Gas side Liquid side

MMY-MAP0806* Ø19.1 Ø12.7 MMY-MAP1006* Ø22.2 Ø12.7 MMY-MAP1206* Ø28.6 Ø12.7 MMY-MAP1406* Ø28.6 Ø15.9 MMY-MAP1606* Ø28.6 Ø15.9 MMY-MAP1806* Ø28.6 Ø15.9

Same as connecting pipe size of the outdoor unit.

(2)

Between Outdoor

unit connection

piping kits

Main connecting

piping between

outdoor units

Piping size for connecting piping between outdoor units

Total capacity codes of

the total outdoor units at

the downstream side

Gas sid e Liquid side

Equivalent to HP

Equivalent to

capacity

24 to below 32 68.0 to below 91.0 Ø34.9 Ø19.1

Pipe size differ based on the total capacity code value of outdoor unit at the downstream side.

↓

Pipe size differs

(3)

Outdoor unit

connection piping

kit of header unit

First branching

section

Main piping

Size of main piping

Total capacity codes of

all out door u nits

Gas side

Liqui d

side

Equivalent to HP

Equivalent to

capacit y

8 to below 10 22.4 to below 28.0 Ø19.1 Ø12.7 10 to below 12 28.0 to below 33.5 Ø22.2 Ø12.7 12 to below 14 33.5 to below 38.4 Ø28.6 Ø12.7 14 to below 22 38.4 to below 61.5 Ø28.6 Ø15.9 22 to below 24 61.5 to below 67.0 Ø28.6 Ø19.1 24 to below 26 67.0 to below 73.0 Ø34.9 Ø19.1 26 to below 36 73.0 to below 100.0 Ø34.9 Ø19.1

36 or more 1

00.0 or more Ø41.3 Ø22.2

based on all capacity code value of outdoor unit.

For HT7P-K model only

Refrigerant Piping

skrameRezis epip fo noitceleSemaNstrap gnipiP.oN

(5)

Branching section

↓

Indoor unit

connecting pipe

Connectin g pipe size of indoor unit

edis saGknar yticapaC

Liqui d

side

007 to 012 type

15m or less real length Ø9.5 Ø6.4 Real length exceeds 15m Ø12.7 Ø6.4

4.6Ø7.21Øepyt 810 ot 510

5.9Ø9.51Øepyt 650 ot 420

7.21Ø2.22Øepyt 690 ot 270

(6)

Branching section

Y-shaped

branching joint

Selection o f branching section (Y-shaped branch ing joint)

Total capacity code of indoor unit s

Model nam e

Equival ent to HP

Equival ent to

capacit y

Y-shape branching joint

Below 6.4 Below 18.0 RBM-BY55E

6.4 to below 14.2 18.0 to below 40.0 RBM-BY105E

14.2 to below 25.2 40.0 to below 70.5 RBM-BY205E

25.2 or more 70.5 or more RBM-BY305E

(7)

Branching section Branching header

Selection o f branching section (Branching header)

Total capacity code of indoor unit s

Model nam e

Equival ent to HP

Equival ent to

capacit y

*2 Branching header

For 4 branches

Below 14.2 Below 40.0 RBM-HY1043E

14.2 to below 25.2 40.0 to below 70.5 RBM-HY2043E

For 8 branches

Below 14.2 Below 40.0 RBM-HY1083E

14.2 to below 25.2 40.0 to below 70.5 RBM-HY2083E

*2: Up to a total of 6.0 maximum equivalent to HP capacity codes is connectable to one line

after branching of heade

r. When the total capacity codes of all outdoor units are 12 to below 26 (equivalent to HP) and you use a branching header for the first branching section, use a RBM-HY2043E or RBM-HY2083E regardless of the total capacity codes of outdoor units at downstream side. In addition, you cannot use a branching header for the

first branching section when the total capacity codes of all outdoor units are ov

26 (equivalent to HP).

(8)

Branching section

Outdoor unit

connection piping

kit (For linking of

outdoor units)

Outdoor u nit conn ection piping kit (For linking of outdoor units)

Total capacity code of outdo or uni ts

Model nam e

Equival ent to HP

Equival ent to

capacit y

Outdoor unit connection piping kit (For linking of outdoor units)

Below 26.0 Below 73.0 RBM-BT14E

26.0 or more 73.0 or more RBM-BT24E

*3: Downstream side when regarding the main piping as the start point

↓

Pipe size differs

(4)

Branching section

Branching pipe

Pipe size between branching sections

Total capacity codes of

indoo r unit s at downstream side

Gas side

Liqui d

side

Equivalent to HP

Equivalent to

capacit y

below 2.4 below 6.6 Ø12.7 Ø9.5

2.4 to below 6.4 6.6 to below 18.0 Ø15.9 Ø9.5

6.4 to below 12.2 18.0 to below 34.0 Ø22.2 Ø12.7

12.2 to below 20.2 34.0 to below 56.5 Ø28.6 Ø15.9

20.2 to below 22.4 56.5 to below 62.5 Ø28.6 Ø19.1

22.4 to below 25.2 62.5 to below 70.5 Ø34.9 Ø19.1

25.2 to below 35.2 70.5 to below 98.5 Ø34

.9 Ø19.1

35.2 or more 98.5 or more Ø41.3 Ø22.2

based on the total capacity code value of indoor units at the downstream side. If the total capacity code value of indoor units exceeds that of the outdoor units, apply the capacity code of the outdoor units.

<Cooling,Heat pump type>

Refrigerant Piping Systematic

<Cooling,Heat pump type>

Outdoor Unit (8, 10, 12HP) Model: MMY-MAP0806 , MMY-MAP1006 , MMY-MAP1206

(TD2)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TO)

(TL1)

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV3D)

(SV42)(SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

(PMV1)

4-way valve

High-pressure sensor

Low-pressure sensor

Oil separator

Fusible plug

Liquid Tank

Accumulator

Highpressure

switch

High-

pressure switch

Compressor

(Inverter)

Oil Header

Liquid side

Service valve

Gas side

Service valve

Balance pipe Service valve

Sub cool

heat exchanger

(SV52)

Reducer

Compressor

(Inverter)

Solenoid

valve

Capillary

tube

Check

valve

Check

joint

Strainer

Temperature

sensor

Symbol

Distributor

Reducer

Refrigerant Piping Systematic

<Cooling,Heat pump type>

Outdoor Unit (14, 16HP) Model: MMY-MAP1406 , MMY-MAP1606

(TD2)

(TS1)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TE2)

(TO)

(TG2)

(TG1)

(TL3)

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve

High-pressure

sensor

Low-pressure sensor

Oil separator

Accumulator

Liquid Tank

Liquid side

Service valve

Gas side

Service valve

Balance pipe

Service valve

Oil Header

High-

pressure switch

High-

pressure switch

Reducer

Fusible

plug

Sub cool

heat exchanger

Compressor

(Inverter)

Compressor

(Inverter)

Solenoid

valve

Capillary

tube

Check

valve

Check

joint

Strainer

Temperature

sensor

Symbol

Distributor

Refrigerant Piping Systematic

<Cooling,Heat pump type>

Outdoor Unit (18, 20, 22HP)

odel: MMY-MAP1806 ,

MMY-MAP2006 , MMY-MAP220

(TD2)

(TS1)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TE2)

(TO)

(TG2)

(TG1)

(TL3)

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve

High-pressure sensor

Low-pressure

sensor

Oil separator

Liquid Tank

Oil Header

High-

pressure switch

High-

pressure switch

Sub cool

heat exchanger

Fusible

plug

Liquid side

Service valve

Gas side

Service valve

Balance pipe Service valve

Solenoid

valve

Capillary

tube

Check

valve

Check

joint

Strainer

Temperature

sensor

Symbol

Distributor

Reducer

Compressor

(Inverter)

Compressor

(Inverter)

Accumulator

Refrigerant Piping Systematic

E x planation of F unc tional P arts

Functi onal part n ame

Functi onal outline

Solenoid val ve

SV3A

(Connector CN321: White)

1) Supplies oil reserved in the oil header during ON time.

SV3B

(Connector CN321: White)

1) Returns oil supplied in the balance pipe to the compressor.

SV3C

(Connector CN321: White)

1) Pressurizes oil reserved in the oil header during ON time.

SV3D

(Connector CN322: White)

1) Reserves oil in the oil separator during OFF time.

Returns oil reserved in the oil separator to the compressor during ON time.

SV2

(Hot gas bypass) (Connector CN311: White)

1) Low pressure release function

2) High pressure release function

3) Gas balance function during stop time

SV41 SV42

(Start assure valve of compressor) (SV41 Connector CN312: Blue, SV42 Connector CN312: Blue.

1) For gas balance start

2) High pressure release function

3) Low pressure rele

ase function

SV52

(Connector CN314: White)

1) Gas injection function during hot gas defrost in heating operation

4-way valve

(Connector CN317:Blue)

1) Cooling/heating exchange

2) Reverse defrost

Oil separator

1) Prevention for rapid decreasing of oil (Decreases oil flowing to the cycle)

2) Reserve function of surplus oil

Pressur e sens or

High pressure sensor

(Connector CN501: Red)

1) Detects high pressure and con

trols compressor capacity

2) Detects high pressure in cooling operation, and controls the fan in low ambient cooling operation

3) Detects subcool in indoor unit in heating operation

Low pressure sensor

(Connector CN500: White)

1) Detects low pressure in cooling operation and controls compressor capacity

2) Detects low pressure in heating operation, and controls the super heat

Heater

Balance pipe

1) Oil bala

ncing in each outdoor unit

Comp ressor case h eater

(Compressor 1 Connector CN331: White, Compressor 2 Connector CN332: Blue.

1) Prevents liquid accumulation to compressor

Accumulator case heater

(Connector CN334: Red)

1) Prevents liquid accumulation to accumulator

(PMV1 Connector CN300: White, PMV3 Connector CN302: Blue)

1) Super heat control function in heating operation

2) Liquid line shut-down function while follower unit stops

3) Subcool adjustment function in cooling operation

4) Exchange function between main and sub exchangers in cooling operation

PMV1, 3

Pulese mo tor valve

(Connector CN303: Red)

1) Subcool adjustment function in cooling operation

2) Liquid b

ypass function for discharge temperature release (cooling bypass function)

PMV4

TD1

TD2

(TD1 Connector CN502: White, TD2 Connector CN503: Pink )

1) Protection of compressor discharge temp.

2) Used for dischage temperature release

TS1

(Connector CN505: White)

1) Controls PMV1 super heat in heating operation

2) Protection of compressor

TS3

(Connector CN903: Purple)

1) Controls PMV4 super heat in heating operation

TG1

TG2

(TG1 Connector CN525: Blue, TG2 Connector CN526: White )

1) Controls PMV

1 super heat in heating operation

Temp. Sens or

TE1

TE2

(TE1 Connector CN520: Green, TE2 Connector CN521: Red )

1) Controls defrost in heating operation

2) Controls outdoor fan in heating operation

TK1,TK2 TK4,TK5

(TK1 Connector CN531: Black, TK2 Connector CN532: Green, TK4 Connector CN534: Yellow, TK5 Connector CN535: Red)

1) Judges oil level of the compressor

TL1,TL2 TL3

(TL1 Connector CN523: White, TL2 Connector CN524: Gray, TL3 Connector CN902: Pink)

1) Detects subcool in cooling operation

(Connector CN507: Yellow)

1) Detects outside temperature

(Connector CN314: White)

1) Preventive function for high-pressure rising in heating operation

2) Gas injection function during hot gas defrost in heating operation

SV51

(High pressure SW 1,2 Connector CN251: BLK)

1) Piping resisting pressure protection

)High pressu re swit ch

(4.15MPa)

High pressu re SW 1 High pressu re SW 2

Address Setup

After turning on the main power of the indoor units and outdoor unit in the refrigerant line to conduct a test operation, check the following items in each outdoor and indoor unit. (After turning on the main power, be sure to check in order: indoor unit outdoor unit.)

(1) Check that all the rotary switches, SW01, SW02, and SW03, on the interface PC board of the header unit are

set to “1.”

(2) If another check code is displayed on the 7-segment display [B], remove the cause of the problem referring to

Section, “TROUBLESHOOTING”.

(3) Check that “L08” is displayed on the 7-segment display [B] on the interface PC board of the header unit.

(L08: Indoor address not set up) (If the address setup operation has already been completed during servicing, etc., the above check code

is not

displayed, and “U1” is displayed on the 7-segment display [A].)

(1) Display check on the remote controller (in the case of a wired remote controller)

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

If no frame is displayed, as shown in the above figure at right, the remote controller does not

have a normal

supply of power; check the following items.

• Check the power supply of the indoor unit.

• Check the cabling between the indoor unit and the remote controller.

• Check whether there is a cutoff of wire around the indoor control PC board or not, and check for connection failures of the connectors.

• Check for failure of the transformer for the indoor electrical control box.

• Check for failure of

the indoor control PC board.

Interface PC board

SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

Push switches

Rotary switches

7-segment display

[A]

7-segment display

[B]

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

Normal status (power supplied and operation stopped)

Correct

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

When power is not supplied normally

Incorrect

Chack at Main Power-on

Address Setup

This product requires address setup before operation. Follow this procedure for address setup.

(1) Address setup is not performed simply by turning on the power supply. (2) For indoor units, address setup can be done either by “manual address setup” or “by automatic address setup”

Automatic address setup: Setup from SW15 on the interface PC board of the header unit Manual address setup: Setup from the

wired remote controller. (For details, refer to “Address Setup Procedure.”) (3) Automatic setup usually takes about 5 minutes per line. In some cases, however, it may take up to 10 minutes. (4) It is unnecessary to operate the air conditioner to achieve address setup.

Procedure

1 Indoor unit power-on Turn on the power of the indoor unit for the refrigerant line for which the address is to be set up. 2 Outdoor unit power-on Turn on the power of all the outdoor units for the refrigerant line for which the address is to be set up .

7-segment display check

Check that “L08” is displayed on the 7-segment display [B] on the interface PC board of the header unit in the system where the address is to be set up.

Address setup start Confirm the items in “Address Setup Procedure,” and then set up the address according to the

operation procedure. (Be careful to note that the setup operation may differ in group control and central control s

ystems.)

Note: The address c annot be set up if switches are not operated .

stnetnoc kcehc dna noitarepOmetI

Display check after setup

• After address setup, “U1” “ ” is displayed on the 7-segment display.

• For follower outdoor units, “U2” to “U3” are displayed on the 7-segment display [A].

• If an error code is displayed on the 7-segment display [B], remove the cause of the problem referring to “TROUBLESHOOTING”.

System information check after setup

Using the 7-segment display function, check the system information of the scheduled system. (This check is executed on the interface PC board of the header unit.)

System capacity

[Number of

horsepower]

[Ton]1 2 3

SW01 SW02 SW03

[A] [B]

Rotary switch setup 7-segment display

Number of connected outdoor units

[Number of units]

[ P]1 3 3

Number of connected indoor units

[Number of

connected units]

1 4 3

After the above checks, return rotary switches SW01, SW02, and SW03 to 1/1/1.

Interface PC board

SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

Push switches

Rotary switches

7-segment display

[A]

7-segment display

[B]

Address Setup

Address Setup and Check Procedure

Precautions

Address Setup

1 erudecorp gnittes sserddA ot og:lortnoc lartnec oN

Central control of 2 or more refrigerant lines: go to Address setting procedure 2

Address setting procedure 1

1 Turn on indoor units first, and then turn on outdoor units. 2 About one minute after turning the power on, confirm that the 7-segment display on the interface P.C.

board of the header outdoor unit indicates U. 1. L08 (U. 1. flash) .

3 Push SW 15 to start the automatic address setting.

(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)

4 The 7-segment display indicates Auto 1 Auto 2 Auto 3 .

After the indication, U. 1. - - - (U. 1. flash) starts flashing on the display. When the flashing stops and U. 1. - - - (U. 1.

light) remain lit on the display, the setting is complete.

Interface P.C. board on the header outdoor unit

5 When using a central control, connect a relay connector between [U1, U2] and [U3, U4] terminals.

REQUIREMENT

• When 2 or more refrigerant lines are controlled as a group, be sure to turn on all the indoor units in the group before setting addresses.

• If you set the unit addresses of each line separately, each line’s header indoor unit is set separately. In that case, the CODE No. “L03” (Indoor header unit overlap) is indicated as running starts. Change the group address to make one unit the header unit using

wired remote controller.

(Example)

When controlling a single refrigerant line

centrally

When controlling 2 or more refrigerant lines

centrally

Address setting procedure

2 erudecorp oT1 erudecorp oT

System wiring diagram

Outdoor

Indoor

Outdoor

Central remote

controller

Central

remote

controller

Remote

controller

Remote

controller

Remote

controller

Outdoor

Indoor

Outdoor

Central remote

controller

Remote

controller

Remote

controller

Remote

controller

SW04

SW05 SW15

SW01

SW02 SW03

D600 D601 D602 D603

D604

Cautions for installation

Address Setup

Address setting procedure 2

1 Set a system address for each system using SW 13 and 14 on the interface P.C. board on the header

outdoor unit of each system. (Factory default: Address 1)

NOTE

Be sure to set a unique address on each system. Do not use a same address as another system (refrigerant line) or “Digital Inverter” side.

Interface P.C. board on the header outdoor unit

(Example) Controlling 2 or more refr ig erant lines as a group

System wiring diagram

Outdoor

Indoor

Outdoor

Remote

controller

(Group control)

SW06 SW07 SW09 SW10

SW11 SW12 SW13 SW14

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

Line address switches on the outdoor interface PC board (O : switch on, × : switch off)

SW13 SW14

1 1 2 3 4 5 6 7 8 9

10 11 12 13 14

× × × × × × × × × × × × × ×

× ×

O O

× ×

O O

× ×

O O

× ×

× × × ×

O O O O

× × × ×

O O

× × × × × × × ×

O O O O O O

2 3 4 1 2 3 4

SW13 SW14

1 15 16 17 18 19 20 21 22 23 24 25 26 27 28

× ×

O O O O O O O O O O O O

O O

× ×

O O

× ×

O O

× ×

O O

× × × ×

O O O O

× × × ×

O O

× × × × × × × ×

O O O O

2 3 4 1 2 3 4

Not used for setup of line address (do not change setup.)

Line address

Address Setup

2 Be sure to disconnect the relay connectors between the [U1U2] and [U3U4] terminals on all the header

outdoor units that will be connected to the central control. (Factory default: disconnected)

3 Turn on indoor units first, and then turn on outdoor units. 4 About 1 minute after turning the power on, confirm that the 7-segment display on the interface P.C.

board of the header outdoor unit indicates U. 1. L08 (U. 1. flash) .

5 Push SW 15 to start the automatic address setting.

(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)

6 The 7-segment display indicates Auto 1 Auto 2 Auto 3 .

After the indication, U. 1. - - - (U. 1. flash) starts flashing on the display. When the flashing stops and U. 1. - - - (U. 1. light) , remains lit on the display, the setting is complete.

7 Repeat steps 4 to 6 for other refrigerant lines.

Be sure to implement a test operation prior to the actual operation in each system.

Address Setup

10 Set the central control address.

(For the setting of the central control address, refer to the installation manuals of the central control devices or “Manual address setup from the remote controller” in the next to the following page and after.

SW15

SW04

1 2

SW13

SW30

SW14

SW01 SW02

SW03

D600 D601 D602 D603 D604

SW05

7-segment

display

Header unit interface P.C. board

SW30 bit 2 switch OFF * Except the smallest line address of

header unit

1 2

SW30

SW30 bit switch ON * The smallest line adress of header unit

4, 6

8 After completing address setting of all systems, turn off DIP switch 2 of SW30 on the interface P.C.

boards of all the header outdoor units connected to the same central control, except the unit that has the lowest address.

(For unifying the termination of the wiring for the central control of indoor and outdoor units)

9 Connect the relay connectors between the [U1, U2] and [U3, U4] terminals of the header outdoor unit of

each refrigerant line.

U1 U2 S U3 U4 U5 U6 S

DLEIHSDLEIHS

TO CENTRAL CONTROLLER TO OUTDOOR UNITTO INDOOR UNIT

Address Setup

*The items in bold font must be set manually.

Outdoor un it’s inter face

P.C. board

Header unit Follow er unit Header unit Follower unit Head er unit Fac tory default

SW13, 14 (Line (system) address)

(No setting

required)

(No setting

required)

3 1

Bit switch 2 of SW30 (Terminator of indoor/ outdoor communication line and central control line)

(No setting

required)

Set to OFF

after setting

addresses.

(No setting

requi

red)

Set to OFF

after set ting

addresses.

Relay connector

Connect after

setting

addresses.

Open

Connect after

setting

addresses.

Open

Connect after

setting

addresses.

Open

Line (system) address 1 1 2 2 3

Indoor unit address 1 2 1 2 1

Group address 0 0 1 2 0

U1 U2

U3 U4 U3U4 U3 U4 U3 U4 U3 U4

U5 U6 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2

2U1U2U1U2U1U2U1U2U1U

U5 U6

BABABABAB

Central remote

controller

Relay

connector

Relay

connector

Relay

connector

Header unit

Follower unit

Remote

controller

Remote

controller

Remote

controller

Remote

controller

Individual

Group

Indoor units (automatic setting)

Switch setting (setting example when controlling 2 or more refrigerant lines centrally) Outdoor units (setting manually)

CAUTION

Relay connector connection

Never connect relay connectors between the [U1, U2] and [U3, U4] terminals before completing address setting of all the refrigerant lines. Otherwise, the addresses cannot be set correctly.

Address Setup

With indoor wiring work completed and outdoor wiring work not done—in cases where indoor unit addresses are decided in advance from the wired remote controller, or in cases where addresses are change after address setup.

1 Arrange one indoor unit and one remote controller set to

1 by 1.

2 Turn on the power. 3 Push the

SET

+ CL +

TEST

buttons simultaneously for 4

seconds or more.

LCD begins blinking.

(Refrigerant line address)

4 Using the

TEMP

buttons, set the DN code to

5 Using the

TIME

buttons, set up the line address (match it with the line address on the interface PC board of the header unit on the same refrigerant line).

6 Push the

SET

button (OK when the display goes on).

(Indoor address)

7 Using the

TEMP

buttons, set the DN code to

8 Using the

TIME

buttons, set up the indoor address. ( ~

)

9 Push the

SET

button (OK when the display goes on).

(Group address)

10 Using the

TEMP

buttons, set the DN code

11 Using the

TIME

buttons, set Individual =

Header unit = , Follower unit = .

12 Push the

SET

button (OK when the display goes on).

(Central control address)

13 Using the

TEMP

buttons, set DN code to .

14 Using the

TIME

buttons, set up the central control

address. (

)

15 Push

SET

button. (OK when display goes on).

16 Push the

TEST

button.

Setup is finished (“Setting up” blinks; when “Setting up” goes off, operation is possible).

17 Return to the original wiring over remote controllers.

Group address

Individual: 0000 Header unit: 0001 Follower unit: 0002

(Wiring example for 2 refrigerant lines)

Line 1 Line 2

Outdoor

Indoor 1 Indoor 2Indoor 1

(Remote controller group control)

Indoor 2 Indoor 3

Indoor 1 Indoor 2Indoor 1 Indoor 2 Indoor 3

Line address Indoor address

1 1 1

Header

1 2 2

Follower Follower Follower Follower

1 3 2

2 1 2

2 2 2

Outdoor

OutdoorOutdoor

(Wiring during manual address setup)

Remote controller

Group address

In the above example, where remote controllers are not yet wired, set the address manually after individually connecting the wired remote controller.

After address setup, return to the original wiring over remote controllers.

In cases of remote controller group control

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

DN code (CODE No.)

Set data

5, 8, 11, 14

6, 9, 12, 15

7 10 13

Manuai address setup from the remote controller

Address Setup

NOTE

(1) When setting the line address from the remote controller, do not use addresses 29 and 30.

Addresses 29 and 30 cannot be set up on the outdoor unit. If they are incorrectly used, the code “E04” (indoor/outdoor communication circuit error) is output.

(2) When manual address setup has been done from a remote controller, and central control over refrigerant

lines is to be done, setup the header unit of

each line as follows:

• Using SW13 and SW14 on the interface PC board of the header unit of each line, setup the line address for each line.

• Except for the line with the smallest line address number, set SW03-bit 2 to “off” for the interface PC board of the header unit of lines connected to the same central control (put the resistance of the end terminals of the central control line, indoors and outdo

ors, into one).

• Connect the relay connector between U1/U2 and U3/U4 of the header unit for each refrigerant line.

• After that, set up the central control address. (For central control address setup, refer to the installation manual of the central control devices.)

Confirming the indoor unit addresses and the position of an indoor unit using the remote controller

Confirming the numbers and positions of indoor units

To see the indoor unit address of an indoor unit which you know the position of

When the unit is individual (the indoor unit is paired with a wired remote controller one-toone), or it is a group-controlled one.

(Execute it while the units are running.)

1 Push the button if the units stop. 2 Push the

UNIT LOUVER

button (left side of the button).

A unit numbers is indicated on the LCD (it will disappear after a few seconds). The indicated number shows the system address and indoor unit address of the unit. When 2 or more indoor units are connected to the remote controller (group-controlled units), a number of other connected units appears each time you push the

UNIT LOUVER

button (left side of the button).

ON / OFF

TEMP.

TIME

SET CL

FILTER RESET

TEST

TIMER SET

CODE No.

UNIT No.

Starts running

Address Setup

To find an indoor unit’s position from its address

When checking unit numbers controlled as a group

(Execute it while the units are stopped.)

The indoor unit numbers in a group are indicated one after another. The fan and louvers of the indicated units are activated.

1 Push and hold the and

TEST

buttons at the same time for more than 4 seconds.

• appears on UNIT No. on the LCD display.

• The fans and louvers of all the indoor units in the group are activated.

2 Push the

UNIT LOUVER

button (left side of the button). Each time you push the button, the indoor unit numbers

are indicated one after another.

• The first-indicated unit number is the address of the header unit.

• Only the fan and louvers of the indicated indoor unit are activated.

3 Push the

TEST

button to finish the procedure.

All the indoor units in the group stop.

ON / OFF

TEMP.

TIME

SET CL

FILTER RESET

TEST

TIMER SET

CODE No.

UNIT No.

SETTING

DATA

SET

R.C. No.

Stop

Address Setup

To check all the indoor unit addresses using an arbitrary wired remote controller. (When communication wirings of 2 or more refrigerant lines are interconnected for central control)

(Execute it while the units are stopped.)

You can check indoor unit addresses and positions of the indoor units in a single refrigerant line. When an outdoor unit is selected, the indoor unit numbers of the refrigerant line

of the selected unit are indicated

one after another and the fan and louvers of the indicated indoor units are activated.

ON / OF F

TE MP.

TIM E

S ET C L

FILT ER R ES E T

TE S T

TIME R S ET

CODE No.

UNIT No.

SE T TIN G

DATA

SE T

R. C. N o.

1 Push and hold the TIME / and

TEST

buttons at the same time for more than 4 seconds.

At first, the line 1 and CODE No.

(

Address Change) are indicated on the LCD display.

(Select an outdoor unit.)

2 Push

UNIT LOUVER

the (left side of the button) and

SWING/FIX

buttons repeatedly to select a system address.

3 Push the

SET

button to confirm the system address selection.

• The address of an indoor unit connected to the selected refrigerant line is indicated on the LCD display and its fan and louvers are activated.

4 Push the

UNIT LOUVER

button (left side of the button). Each time you push the button, the indoor unit numbers

of the selected refrigerant line are indicated one after another.

• Only the fan and louvers of the indicated indoor unit are activated.

To select another system address

5 Push the

button to return to step 2.

• After returning to step

2, select another system address and check the indoor unit addresses of the line.

6 Push

TEST

the button to finish the procedure.

Address Setup

To change an indoor unit address using a wired remote controller.

The method to change the address of an individual indoor unit (the indoor unit is paired with a

wired remote controller one-to-one), or an indoor unit in a group. (The method is available when the addresses have already been set automatically.)

(Execute it while the units are stopped.)

1 Push and hold the

SET

, CL , and

TEST

buttons at the same time for more than 4 seconds.

(If 2 or more indoor units are controlled in a group, the first indicated UNIT No. is that of the head unit.)

2 Push the

UNIT LOUVER

button (left side of the button) repeatedly to select an indoor unit number to change if 2

or more units are controlled in a group. (The fan and louvers of the selected indoor unit are activated.)

(The fan of the selected indoor unit is turned on.)

3 Push the TEMP. / buttons repeatedly to select for CODE No.. 4 Push the TIME / buttons repeatedly to change the value indicated in the SET DATA section to that

you want.

5 Push the

SET

button.

6 Push the

UNIT LOUVER

button (left side of the button) repeatedly to select another indoor UNIT No. to change.

Repeat steps

4 to 6 to change the indoor unit addresses so as to make each of them unique.

7 Push the

UNIT LOUVER

button (left side of the button) to check the changed addresses.

8 If the addresses have been changed correctly, push the

TEST

button to finish the procedure.

3 5

2, 6, 7

ON / OFF

TEMP.

TIME

SET CL

FILTER RESET

TEST

TIMER SET

CODE No.

UNIT No.

SETTING

DATA

SET

R.C. No.

Finish

Change the indoor unit address using a remote controller

Address Setup

To change all the indoor unit addresses using an arbitrary wired remote controller.

(The method is available when the addresses have already been set automatically.)

(When communication wirings of 2 or more refrigerant lines are interconnected for central control)

NOTE

You can change the addresses of indoor units in each refrigerant line using an arbitrary wired remote controller.

* Enter the address check/change mode and change the addresses.

If no number appears on UNIT No., no outdoor unit exists on the line. Push

button and select another line

following step

(Execute it while the units are stopped.)

Push and hold th e TIME / and

TEST

buttons at the same time for more than 4 seconds.

At first, the line 1 and CODE No.

(Address Change) are indicated on the LCD display.

Push

UNIT LOUVER

(left side of the button) and

SWING/FIX

buttons repeatedly to select a system address.

Push the

SET

button.

• The address of one of the indoor units connected to the selected refrigerant line is indicated on the LCD display and the fan and louvers of the unit are activated. At first, the current indoor unit address is displayed in SET DATA. (No system address is indicated.)

Push the TIME / buttons repeatedly to chang e the value of the indoor unit address in SET DATA. Change the value in SET DATA to that of a new address.

Push the

SET

button t o confirm the new address on SET DATA.

Push the

UNIT LOUVER

button (l eft side of the button) repeatedly to select another address to chan ge. Each time you push the button, the indoor unit numbers in a refrigerant line are indicated one after another. Only the fan and louvers of the selected indoor un it are activated.

Repeat steps

4 to 6 to change the indoor unit addresses so as to make each of them unique.

Push the

SET

button.

(All the segments on the LCD display light up.)

Push the

TEST

button to finish the procedure.

3 2

ON / OFF

TEMP.

TIME

SET CL

FILTER RESET

TEST

TIMER SET

CODE No.

UNIT No.

SETTING

DATA

SET

R.C. No.

Cancels t he line selection

- - --

4 8

5, 7

ON / OFF

TEMP.

TIME

SET CL

FILTER RESET

TEST

TIMER SET

CODE No.

UNIT No.

SETTING

DATA

SET

R.C. No.

Push to finish

settin g.

Finish

Address Setup

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2

U1U3U2

U5 U6

U1 U2

A B

Central remote controller

Header unit

Follower unit

Remote controller

Indoor units to have their addresses initialized

Header unit

Method 1

Clearing each address separately using a wired remote controller. Set the system address, indoor unit address and group address to “ ” using a wired remote controller. (For the setting procedure, refer to the address setting procedures using the wired remote controller on the previous pages.)

Method 2

Clearing all the indoor unit addresses on a refrigerate line at once from the outdoor unit.

Turn off the refrigerant line to reset to the factory default and set the header outdoor unit of the line as below.

2 Turn on the indoor and outdoor units of the refrigerant line for which you want to initialize the ad-

dresses. About one minute after turning on the power, confirm that the 7-segment display on the header outdoor unit indicates “ U.1. - - -” and operate the interface P.C. board on the header outdoor unit of the refrigerant line as follows.

3 Confirm that the 7-segment display indicates “ A.d. c.L.” and set SW01, SW02 and SW03 to 1, 1, 1 respec-

tively.

4 After a time “ U.1.L08” appears on the 7-segment display if the address clearing has been completed

successfully. If the 7-segment display indicates “ A.d. n.G.” , the outdoor unit may still connected with other refrigerant lines. Check the connection of the relay connectors between [U1, U2] and [U3, U4].

NOTE

Take care to carry out the procedure above correctly; otherwise, addresses in other refrigerate lines may also be cleared.

5 Set the addresses again after finishing the clearance.

1) Disconnect the relay connectors between the [U1, U2] and [U3, U4] terminals. (Leave them as they are if they have already been disconnected.)

2) Turn on dip switch 2 of SW30 on the interface P.C. board of the header outdo

or unit if the switch is OFF. (Leave it as it is if it has already been set to ON.)

sesserdda elbaraelC40WS30WS20WS10WS

2 1 2

Confirm that the 7-segment display indicates “A.d.buS” and turn SW04 ON for more than five seconds.

System/indoor unit/group address

2 2 2

Confirm that the 7-segment display indicates “A.d.nEt” and turn SW04 ON for more than five seconds.

Central control address

Resetting the address (Resetting to he factory default (address undecided)

Address Setup

To set up the indoor address of a unit with an address that is undefined due to the extension of indoor units or replacement of PC board, etc., follow the methods below.

Method 1

Set up an address individually from a wired remote controller. (Line address, Indoor address, Group address, Central address) For the setup method, refer to “Manual address setup from the remote controller.” above.

Method 2

Set up an address from the outdoor unit. * Leave the addresses of the units for which addresses have already been set up as they are. Set up an address

only for the unit where the address is undefined. Addresses are allocated from lower numbers.

Setup procedure

Set up the outdoor header units in the refrigerant line to which indoor units have been added, as follows.

1 Remove the relay connector between U1/U2 and U3/U4. 2 If it is off, turn on SW30-bit 2 on the interface PC board at outdoor header unit side.

* Turn off the power, and then execute the operation.

3 Turn on the indoor/outdoor power for the refrigerant line for which an address is to be set up.

After approximately 1 minute, check that “ U.1. - - -” is displayed on the 7-segment display.

4 Execute the following operation on the interface PC board of the header unit.

“

”

“ ”

“

” ...

“

”

... is counted and displayed on the 7-segment display.

5 When “

” is displayed on the 7-segment display, the setup operation finished.

Turn off the indoor/outdoor power.

6 Return to the following setup as before.

• Relay connector

• SW30-bit 2

• SW01, SW02, SW03

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2

U1U3U2

U5 U6

U1 U2

A B

Central remote controller

Header unit

Follower unit

Remote controller

Added indoor unit

Header unit

40WS30WS20WS10WS

2 14 2 After checking that “In.At” is displayed on the 7-segment display, push SW04 for 5 seconds or more.

→ → →

→

In the case of an increase in address-undefined indoor units (extension, etc.)

.---

Address Setup

When the central control system is connected, check that the following setup has finished after address setup.

NOTE

The figure above does not show all the electric wires. For details, refer to the installation manuals for the outdoor unit, indoor unit, remote controller, or optional devices.

U1 U2

U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

U3 U4

)A( tinu redaeH)A( tinu redaeH

U1 U2 U5 U6

U3 U4

U1 U2 U5 U6

A B A B A B A B

(5)(4)

(5)

)2()1( (3)

Other refrigerant line

U1 U2

U3 U4

U1 U2 U5 U6

To other refrigerant line

U3 U4

Line address = 1Line address = 2

Central remote controller

Follower unit (B) Follower unit (C)

Outdoor unit

Indoor unit

Remote controller

kcehCsmeti kcehc niaM

Relay connector

(1) Is the relay connector of the header unit connected after address setup?

(2) Is the relay connector of the follower unit disconnect?

Terminator (3) Is the terminator (SW30-bit 2) of the header unit with the smallest line address

number in the central control turned on? (Setup is unnecessary for follower units.)

(4) Is the terminator (SW30-bit 2) of the heade

r units, except for the line with the

smallest central control line address, turned off? (Setup is unnecessary for follower units.)

Line address (5) Are addresses in the line address (SW13, SW14) not duplicated in each refrigerant line?

Check after Address Setup when Central Control System is connected

Address Setup

U1 U2

U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

U3 U4

U1 U2 U5 U6

U3 U4

U1 U2 U5 U6

U3 U4

A B A B A B A B

(1) (2) (4) (3)

(5)

(6)

Outdoor unit

Indoor unit

Remote controller

Header unit (A) Follower unit (B) Follower unit (C)

kcehCsmetikcehcniaM

(1) Are the indoor and outdoor communication lines of the header unit connected to the U1/U2 terminals?

(2) Is the relay connector between the U1/U2 terminal and the U3/U4 terminal disconnect? (Set up at shipment from the factory)

(3) Is the communication line between outdoor units connected to the U5/U6 terminal?

(4) Is the terminator (SW30-bit 2) on the interface PC board of the header unit turned on? (Set up at shipment from the factory)

(5) Is the

terminator

of the shield wire open?

(6) Is the

terminator

of the shield wire earthed at the header unit side?

Prior to the test operation, check the following items to verify there are no problems with the installation work.

Main check items for electric wiring

The communication system differs from that of R22 or R407 refrigerant “Modular Multi System” air conditioners. Check wiring points again carefully.

(1) In the case that a central control system is not connected:

NOTE

The figure above does not show all the electric wires. For details, refer to the installation manuals for the outdoor unit, indoor unit, remote controller, or optional devices.

Chaeck items before Test Operation ( before powering - on)

Test Operation

Checklist 1

Using Checklist 1, check that there are no problems with the installation work.

Is the capacity of the Outdoor total capacity circuit breaker (Earth leakage breaker) appropriate?

A Indoor unit A A A

Is the gauge of the power cable correct?

mm²

mm² mm²

mm²

Indoor unit

Header unit (A)

Follower unit (B)

Follower unit (C)

Header unit (A) Follower unit (B) Follower unit (C)

Is the control communication l

ine

correct?

Indoor-outdoor connection terminals (U1, U2)

Outdoor-outdoor connection terminals (U5, U6)

Central control system connection terminals (U3, U4)

Is the power of indoor units supplied collectively? Is it grounded to earth? Is the resistance sufficient? (10MΩ or higher) Is the main power voltage sufficient? (within 380-415 V ± 10%) Is the diameter of connecting pipe correct? Is the branch kit corr

ect? Is the water drain of the indoor unit arranged so that it flows without accumulation? Is the heat insulation of pipes sufficient? (connecting pipes, branch kit) Is there no short circuit of discharge air in the indoor/outdoor units? After an airtightness test of the pipes, are vacuuming and adding of refrigerant executed? Are the valves of all the outdoor units fully opened?

Gas side Liquid side Bala

nce side

Header unit (A) Follower unit (B) Follower unit (C)

10MΩ or higher

Test Operation

Cooling, Heat pump type

Calculate the additional amount of refrigerant from the additional amount of refrigerant (A) by the pipe diameter on the liquid side, the pipe length to be connected, and the corrective amount of refrigerant (B) according to Indoor unit horsepower, and the corrective amount of refrigerant (C) according to sys

tem horsepower.

(A)

First, enter the total length for each liquid pipe

diameter in the following table, and then calculate the additional amount of refrigerant by

pipe length.

Next, refer to the following table for the corrective amount of refrigerant (B) according to indoor unit horsepower.

kg/HP

Lastly, add the additional amount of refrigerant by pipe length (A) and the correcti

ve amount of refrigerant by indoor unit horsepower (B) to the corrective amount of refrigerant by combined horsepower (C). This is the final additional amount of refrigerant. If a minus sign is indicated as the result, do not reduce or add the refrigerant (= 0 kg).

Additional amount

of refrigerant

Actual liquid pipe length x Additional amount

of refrigerant per 1 m of l

iquid pipe

Corrective amount of refrigerant

according to

system horsepower

Corrective amount of refrigerant

according to indoor unit horsepower

+ +

0.025 x 1.2 x

0.055 x 1.2 x

0.105 x 1.2 x

0.160 x 1.2 x

0.250 x 1.2 x

0.350 x 1.2 x

Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0 Ø22.2

= kg

kg kg kg kg kg

kg kg kg kg

(B)

Pipe diam eter on t he

liqui d side

Standard amount of

refrig erant

Standard Indoor

uni

Fresh Air intake

Indoor unit

Air to Air Heat Exchanger

with DX-coil

Total

pipe len gth on each

liqui d side

Addit ional am ount o f refri gerant p ipe

diameter on each l iquid side

= =

HP kg

Additional refrigerant charge amount Indoor unit

Additional refrigerant charge amount Capacity of Indoor unit Corrective amount of refrigerant

0.4

0.2 0.2

Additional amount of refrigerant by pipe length (A) kg Corrective amount of refrigerant according to indoor unit horsepower (B) kg Corrective amount of refrigerant according to combined horsepower (C) kg Additional amount of refrigerant kg

(C)

Next, refer to the Table 1-1~1-5 on P. 20 "A dding refrig erant" for th e correc tive amo unt of refrig erant (C) acc ording to system horsep ower.

Checklist 2

Check the additional amount of refrigerant.

Test Operation

The cooling/heating test operation check can be performed on both the indoor remote control and the outdoor header unit interface PC board.

(1) Test operation start/stop operation Test operation from the indoor remote control

• Wired remote control: Refer to the items below in “Test operation” of the wired remote control.

• Wireless remote control: Refer to the items below in “Test operation” of the wireless remote control.

Wired remote control Wireless remote control (Except the 4-way

Cassette type and the Ceiling type)

Test run (Forced cooling operation) Requirement:

• Finish the forced cooling operation in a short time because it applies excessive strength to the air conditioner.

How to perform forced cooling operation

1. When TEMPORARY button is pushed for 10 sec-

onds or more, “Pi!” sound is heard and the operation changes to a forced cooling operation. After approx. 3 minutes, a cooling operation starts forcedly. Check cool air starts blowing. If the operation does not start, check wiring again.

2. To stop a test operation, push TEMPORARY button

once again (Approx. 1 second).

• Check wiring / piping of the indoor and outdoor units after forced cooling operation.

1, 5

2, 4

Operation contentProcedure

When the Test button is pushed for 4 seconds or more, “TEST” is displayed in the display section, and the unit enters test operating mode.

Push the Test button to clear the test operating mode. (“TEST” disappears from the display section, and the status returns to the normal stopped status.)

Using the Select Mode button, select the “ COOL” or “ HEAT” operating mode.

• Do not use an operating mode other than “ COOL” or “ HEAT”.

• Temperature adjustment is unavailable during test operation.

• Error is detected as usual.

Push the button.

When the test operation has finished, push the button to stop the operation. (The same display as in procedure 1 appears in the display section.)

TEMPORARY- Button

Cooling / heating test operation check

Test Operation

Wireless remote controller (4-way Cassette type)

Test run (Forced cooling operation) Requirement:

• Finish the forced cooling operation in a short time because it applies excessive strength to the air conditioner.

How to perform forced cooling operation

1. When TEMPORARY button is pushed for 10 seconds or more, “Pi!” sound is heard and the operation changes to a forced cooling operation. After approx. 3 minutes, a cooling operation starts forcedly. Check cool air

starts blowing. If the operation does

not start, check wiring again.

2. To stop a test operation, push TEMPORARY button once again (Approx. 1 second).

• Check wiring / piping of the indoor and outdoor

units in forced cooling operation.

Wireless remote controller (Ceiling type)

Test run (Forced cooling operation) Requirement:

• Finish the forced cooling operation in a short time because it applies excessive strength to the air conditioner.

How to perform forced cooling operation

2. To stop a test operation, push TEMPORARY button once again (Approx. 1 second).

• Check wiring / piping of the indoor and outdoor

units in forced cooling operation.

Test operation from the outdoor unit

• Refer to “Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit” in “Service Support Function.”

NOTE : The test operation returns to normal operating mode after 60 minutes.

TEMPORARY

button

TEMPORARY button

Troubleshooting in Test Operation

If there are phenomena such as the output of a check code or the remote controller is not accepted when powered on after wiring work or during address setup operation, the following causes are considered.

A Check Code is displayed on the remote controller

* “L05”: Displayed on the indoor unit set up with priority

“L06”: Displayed on the indoor units except the one set up with priority

Check code

displayed on the

indoor remote

controller

Header

unit 7-

segment

display

serusaemretnuoCesuaC

E04

no si rewop tinu roodtuo redaeh eht taht kcehCffo si rewop roodtuo nehW–

L08

Address setup error

• Only line addresses of the connected indoor units are undefined.

• The outdoor line address and the line addresses of all the indoor units do not match.

• The indoor addresses are duplicated. (Units except t

hose displaying E04 are duplicated.)

• A header unit is not set up in group control (except groups displaying E04).

Set up the address again.

E08 -XX

Alternate

blinking

Duplication of indoor addresses (address number in the subcode of the check code are duplicated).

Set up the address again.

E07

There is no outdoor terminator or there are two or more terminator resistor. (After address setup, when terminator setup is changed after power on)

Check SW30 bit 2 of the header unit. No connection between multiple refrigerant lines: SW30 bit 2 is on. Connection between multiple refrigerant lines: SW30 bit 2 of the connected header unit is turned on only for one line.

Transmission circuit error at the interface side (PC board failure)

Replace the interface PC board.

E06

After address setup, communication from all

he indoor units is interrupted under the condition that a normal operation can be performed.

Check and correct disconnection of the indoor/ outdoor communication line (the communication line between the header unit and the leading indoor unit). Check for the influence of communication noise.

E16

E16 -XX

Alternate

blinking

Exceeded the number or capacity of connected indoor units

Adjust the number or capaci

ty of connected indoor

units.

E23 E23

Communication between outdoor units has stopped. Check the number of connected outdoor units.

Check that outdoor unit power is on.

E25 E25

Duplication of outdoor addresses (only when an outdoor address was manually set up)

Do not use manual setup for outdoor addresses.

E26

E26 -XX

Alternate

blinking

Number of connected outdoor units has decreased.

• When installing an outdoor

backup

• The power of a follower unit is not turned on.

Correction of the cause of error occurrence

• If it occurs when installing a backup, clear the error after setup finishes.

• If the power of a follower unit is not turned on, turn on the power.

L04 L04

Duplication of outdoor line addresses

• Line address setup error (occurred after connection between U1/U2 and U3/U4 connectors)

Modify the line address se

tup of the header unit between lines. (Set up SW13 and SW14 on the interface PC board.)

L05(*) L06 Duplication of indoor units with priority Set up priority only for one indoor unit.

L06(*)

There are two or more indoor units set up with priority.

Among indoor units indicating “L05,” set one u nit with priority.

L08 L08

Address setup error

• Only indoor addresses of all the connected indoor units are undefined.

Set up the addresses again. Modify the setup.

1 2

SW30

<Cooling, Heat pump type>

Troubleshooting in Test Operation

<Cooling, Heat pump type>

Operation from the indoor remote controller is not accepted, and a Check Code is displayed on the 7 - seqment display of the interface PC board of header unit.

There is no display of a Check Code on the 7 - segment display on the interface PC boardof the header unit, although there is indoor unit that is not accepting operation from the indoor remote controller.

Indoor remote

controller

status

Header unit

7-segment

display

serusaemretnuoCesuaC

No response

L08

Line addresses and indoor addresses of all the connected indoor units are not set.

Set up addresses.

There is no header unit of group control. Set up a group address.

E19 -00

Alternate

blinking

:redro eht nI( .niaga rewop eht no nruT.no denrut ton si rewop tinu roodnI

indoor → outdoor)

Indoor/outdoor communication

line is not correctly connected to the U1/U2 terminal of the header unit. (Fig 1) (Indoor / outdoor cannot communicate before address setup.)

Correct wiring

There is no of outdoor terminal resistance, or there are two or more resistances (before address setup).

E19 -02

Alternate

blinking

When connecting an indoor/outdoor communication line between outdoor units under the condition of a connected communication line between outdoor units. (Fig 2)

Correct wiring

E20 -01

Alternate

blinking

Address setup is performed with connecting an indoor/ outdoor communication line between outdoor units.

(Fig 3)

Correct wiring

Address setup is performed under the condition of connecting multiple refrigerant lines. (Fig 3)

Correct wiring

1 2

SW30

Indoor remote

controller

status

Header unit

7-segment

display

serusaemretnuoCesuaC

No response None

The communication line is not connected between indoor and outdoor (the unit that does not respond to the indoor remote controller).

Modify the wiring.

Line address and indoor address are not set (the unit that does not respond to the indoor remote controller).

Set up the address.

The power of the header unit

of the group is not turned on in indoor group control (the unit that does not respond to the indoor remote controller).

Turn on the power.

Group address is set to the follower unit for individual control (the unit that does not respond to the indoor remote controller).

Set the group address to “0” in the case of individual control.

No display on the

indoor remote

controller (no line

is output.)

None

e power is not turned on (the unit that is not displayed on

the indoor remote controller).

Turn on the power.

The indoor remote controller is not connected with a wire (the unit that is not displayed on the indoor remote controller).

Modify the wiring.

Miswiring of the indoor remote controller (the unit that is not displayed on the indoor remote controller)

Modify the wiring.

Indoor remote controller co

mmunication circuit trouble (the unit that is not displayed on the indoor remote controller) If 220-240 V is incorrectly applied to the indoor remote controller terminal, the remote controller communication circuit fails.

Remove the Faston connect terminal connected to indoor remote controller terminals A/B, and check the voltage. If voltage is not applied (normally 15 to 18 V), replace the PC board.

Troubleshooting in Test Operation

In checking the number of connected outdoor units and connected indoor unit after address setup, a lower number of connected units is displayed.

(There are outdoor/indoor units that do not operate in a test operation.)

serusaemretnuoCesuaCsutatS

The number of

connected

outdoor units is

too few.

Miswiring of communication lines between outdoor units or an unconnected wire ( Fig. 4). (Address setup operation finished without recognizing a miswired follower unit.)

After modification of wiring, set up the addresses again and check the number of connected outdoor units.

The number of

connected indoor

units is too few.

Miswi

ring of communication lines between indoor units or an unconnected wire. (Fig 5) (Address setup operation finished without recognizing a miswired indoor unit.)

After modification of wiring, set up the addresses again and check the number of connected indoor units.

The number of

outdoor units

connected to a

group is too few in

group operation

from an indoor

remote controller.

The indoor remote controller

is not connected with wire.

Miswiring of the indoor remote controller

Using the main indoor remote controller connected to a group, start a test operation, specify the unit that is not operating (the unit not connected to the group), and then check the wiring.

Indoor remote controller communication circuit trouble If 220-240 V is incorrectly applied to the remote controller terminal, the remote contr

oller communication

circuit fails.

Using the main indoor remote controller connected to a group, start a test operation and then specify the unit that is not operating (the unit not connected to the group). Remove the Faston connect terminal connected to remote controller terminals A/B, and check the voltage. If voltage is not applied (normally 15 to18 V), replace the PC board.

<Cooling, Heat pump type>

Troubleshooting in Test Operation

Miswiring example

F igure

R emote

controller

s tatus

He ad er unit

7-s eg ment

dis play

Mis wiring exa mple

F ig. 1

res ponse

E 19-00

F ig. 2

res ponse

E 19-02

F ig. 3

res ponse

E 20-01

elpmaxegniriwsiMsutatSerugiF

F ig. 4

T he number of conne cted outdoor units is too few.

F ig. 5

T he number of conne cted indoor units is too few.

U3 U 4 U5 U 6

U1 U 2 U 1 U 2 U1 U 2 U1 U 2

He ader unit He ader unit

U1 U 2

He ader unit

U1 U 2 U 1 U2

U5 U6 U1 U2 U 5 U 6

Follower unit

U1 U 2

U1 U 2 U1 U2

U1 U 2 U1 U 2

U5 U 6

U1 U 2

U1 U 2 U 1 U2

[Line 1]

U1 U 2

He ader unit F ollower unit He ader unit F ollower unit

He ader unit F ollower unit

[Line 2]

U1 U 2

U1 U2 U1 U2

U3 U 4U1 U2

U1 U2 U1 U 2

U3 U 4 U1 U2

U1 U2 U 1 U 2

U5 U6

U5 U 6

U3 U4

U1 U2

U3 U4

U1 U2

He ader unit F ollower unit Hea der unit F ollower uni t Hea der unit F ollower unit

Wiring forgotten

U1 U 2

A B

U1 U2

U1 U2 U1 U 2

tinurewolloFtinuredaeH

Troubles hooting in Tes t Operation (C ontinued)

Monitor Function

When using a remote controller with the model name RBC-AMT32E the following monitor functions can be used.

Calling of display screen <Content>

The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can be known by calling up the service monitor mode from the remote controller.

[Procedure]

1 Push

TEST+CL

buttons simultaneously for 4 seconds or more to call up the service monitor mode.

The service monitor goes on, and temperature of the CODE No. is firstly displayed.

2 Push the temperature setup

TEMP

buttons to select the CODE No. to be monitored.

For displayed codes, refer to the table next page.

3 Push

SET

button to determine the item to be monitored.

Then monitor the sensor temperature or operation status of indoor unit and the outdoor unit in the corresponding refrigerant line.

4 Pushing

TEST

button returns the display to the normal display.

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

Monitor Function

.oNEDOC

Indoor unit data *

00 Room temperature (Use to

C1×Indoor suction air temperature (TA)20

1×)JCT(erutarepmetliocroodnI30

1×

)2CT(erutarepmetliocroodnI40

1×)1CT(erutarepmetliocroodnI50

06 Indoor discharge air temperature (TF)

slp0051=]0510[slp01/1×gninepoVMPrhodnI

Filter sign time

System data

stinu84=]8400[tinu1×stinuroodnidetcennocfo.oNA0

0B Total horsepower of connected indoor units ×10 HP [

[2500} = 2500h

0415]=41.5HP

[0003]=3 unitstinu1×stinuroodtuodetcennocfo.oNC0

PH24=]0240[PH01×stinuroodtuoforewopesrohlatoTD0

Suction temperature of air to air heat exchanger (TSA)

×1

[0024] = 24

FF3A

Outside air temperature (TOA)

×1

U1 U2 U3 10 20 30 MPa 11 21 31 MPa 12 22 32 13 23 33 15 25 35 16 26 36 17 27 37 18 28 38 19 29 39 1A 2A 3A 1C 2C 3C 1D 2D 3D 1E 2E 3E 1F 2F 3F

U1 U2 U3 50 60 70 pls 51 61 71 pls 52 62 72 pls 53

63 73 A

64 74 A

56 66 76 rps 57 67 77 rps 59 69 79 mode 5A 6A 7A 5B 6B 7B 5D 6D 7D 5E 6E 7E 5F 6F 7F HP

Outdoor unit

individual data 3

90 Heating/cooling recovery controlled

0: Normal 1: Recovery controlled

[0010]=Heating recovery controlled [0001]=Cooling recovery controlled

91 Pressure release

0: Normal 1: Release controll ed

[0010]=Pressure release controlled

Data nam e Disp lay for mat

Unit

Remot e contr oller dis play exam ple

Data nam e Disp lay for mat

Unit

Remot e contr oller dis play exam ple

Data nam e Disp lay for mat

Unit

Remot e contr

oll er disp lay examp le

Data nam e Disp lay for mat

Unit

Remot e contr oller dis play exam ple

.oNEDOC

dellortnocesaelererutarepmetegrahcsiD=]1000[esaelererutarepmetegrahcsiD

Follower unit release (U2/U3 outdoor units)

[0100]=U2 outdoor unit release controlled [0010]=U3 outdoor unit release controlled [0001]=U4 outdoor unit release controlled

1×erutarepmetknistaeh2UDPIrosserpmoC 1×erutarepmetknistaeh1UDPInafroodtuO 1×erutarepmetknist

aeh2UDPInafroodtuO

PH61=]6100[1×rewopesrohtinuroodtuO

[0135] = 13.5A

1 fan model : Compressor 2 and Outdoor fan 1 current (I2) 2 fan model : Compressor 2 and Outdoor fan 2 current (I2)

×10

01×snoitulover1rosserpmoC

[0642] = 64.2rps

01×snoitulover2rosserpmoC

Outdoor unit individual data 2

1×gninepo1VMP

[0500] = 500pls1×gninepo3VMP

1×gninepo4VMP 1 fan model : Compressor 1 curent (I1) 2 fan model : Compressor 1 and Outdoor fan 1 current (I1)

×10

edom85=]8500[1×ed

omnafroodtuO

1×erutarepmetknistaeh1UDPIrosserpmoC

[0024] = 24

CODE No.

1×)1LT(edisdiuqiltaerutarepmeT

1×)2LT(edisdiuqiltaerutarepmeT

1×)3LT(edisdiuqiltaerutarepmeT

Outdoor unit individual data 1

001×)dP(erusserpnoitnetedrosneserusserp-hgiH

[0123] = 1.23MPa

001×)sP(erusserpnoitnetedrosneserusserp-woL

1×)1DT(erutarepmetegrahcsid1rosserpmoC

×1

1×)OT(erutarepmettneibmaedistuO

1×)1ST(erutarepmetnoitcuS

1×)3ST(erutarepmetnoitcuS

[0024] = 24

1×)2DT(erutarepmetegrahcsid2rosserpmoC

1×)1ET(erutarepmetliocroodtuO

1×)2ET(erutarepmetliocroodtuO

1×)1GT(erutarepmetliocroodtuO Outdoor coil temperature (TG2)

CODE No.

*1 Only a part of indoor unit types is installed with the discharge air temperature sensor.This temperature is not

displayed for other types. *2 When the units are connected to a group, data of the header indoor unit only can be displayed. *3 The first digit of an CODE No. indicates the outdoor unit number. *4 The upper digit of an CODE No. -4 indicates the outdoor unit number.

1 , 5 ... U1 outdoor unit (Header unit)

2*, 6 ... U2 outdoor unit (Follower unit 1)

3 , 7 ... U3 outdoor unit (Follower unit 2) *5 Only the CODE No. 9* of U1 outdoor unit (Header unit) is displayed.

***

* *

Monitor Function

7- segment display on outdoor unit ( interface P.C. board )

The interface control P.C. board features a 7-segment LED display designed to check operational status. Display items can be changed by changing the combination of the number settings of rotary switches provided on the P.C. board (SW01, SW02 and SW03).

Checking Procedure to Be Followed in Event of Abnormal Shutdown

If the system is shut down due to trouble in the outdoor unit, perform checks in the following steps:

1 Open the panel of the outdoor unit and inspection window of the electric parts box, and check the 7-

segment display.

The check code is displayed in the right-hand section of the 7-segment display [B]. [U1] [OOO] ([OOO]: Check code)

* To c

heck the check code, set the rotary switches SW01/SW02/SW03 to [1/1/1]. If there is a sub-code, the display alternates between the check code [OOO] (3 seconds) and the subcode [OOO] (1 second).

2 Check the check code and follow the applicable diagnostic procedure. 3 If the 7-segment display shows [ ] [ ], there is a check code in a follower unit.

Push the push-switch SW04 on the header unit a

nd hold for several seconds. As the fan of the outdoor unit in which the trouble has occurred comes on, open the panel of the unit, and check the check code shown on the 7-segment display.

4 Perform checks in accordance with the diagnostic procedure applicable to the check code.

Interface P.C. board

SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

7-segment display

[A]

Push switch

7-segment display

[B]

Rotary switches

Monitor Function

(1) Display of system Information (Displayed on Header Outdoor Unit Only)

liatedyalpsiD30WS20WS10WS

Unused A B

System capacity A […8]~[64]:8 to 64 HP

B [HP]

No. of outdoor units A […1]~[…3]:1 to

B […P]

No. of indoor units connected / No. of units with cooling

thermostat

A […0.]~[64.]:0 to 64 (No. of units connected)

B [C…0]~[C64]:0 to 64 (No. of units with cooling

thermostat

ON)

No. of indoor units connected / No. of units with heating

thermostat

A […0.]~[64.]:0 to 64 (No. of

units connected)

B [H…0]~[H64]:0 to 64 (No. of units with heating

thermostat

ON)

Amount of compressor command correction

A Value displayed in hexadecimal format

Release control A Normal: [r. …], During release control: [r.1]

B –

Oil equalization control Normal: [oiL-0]

During oil equalization control: [oiL-1]

Oil equalization request A Displayed through LED segment lighting pattern

Refrigerant/oil recove

ry operation A Oil recovery in cooling: [C1], Normal: [C …]

B Refrigerant recovery in heating: [H1], Normal: [H …]

Automatic addressing A [Ad]

B During automatic addressing: [… FF], Normal: [… … …]

Power peak-cut A [dU]

B Normal: [… … …], During 50-90% capacity operation: [_50-_90]

While control is based on BUS line input: [E50-E90]

BAsutatslortnoclanoitposyalpsiD)tupnidraob.C.P(lortnoclanoitpO

Operation mode

selection: During priority heating (normal) h.

. . . .

.cgniloocytiroirP

. . . .

.HylnognitaeH

. . . .

.CylnognilooC

. . . .

Priority given to No. of indoor units in operati on n.

. . . .

.UtinuroodnicificepsotnevigytiroirP

. . .

External master ON/OFF: Normal

.…. . . .

Start input

.1. . . .

Stop input

.0. . . .

Night operation: Normal

. . …. . .

Start input

. . 1. . .

Snowfall operation: Normal

. . .…. .

Start input

. . .1. .

Optional control

(BUS line input)

Same as above

Unused

–A–

B –

F G

U2U1 U3 U4

E C

Display section A Display section B

Outdoor unit No.

If element F shown on sketch at left turned on: Header unit oil equalization request If element C shown on sketch at left turned on: Follower unit oil equalization request

Monitor Function

(2) Display of Outdoor Unit Information (Displayed on each Outdoor Unit)

liatedyalpsiD30WS20WS10WS

Outdoor unit No.: [U1] to [U3]A

Check code

B Check code (only latest one displayed)

If there is no check code, [– – –] is displayed. If there is sub-code, check code [

] and sub-code [– ] are displayed

alternately, for 3 s econds and 1 second, respectively.

<SW04> push SW function: Fan operation at outdoor unit with check code. 7-segment display section A: [E.1]

<SW04 + SW05> push SW function: Fan operation at outdoor unit without check code. 7-segment display section A: [E.0] <SW05> push SW function: Fan operation function check mode is cancelled.

–A–

B –

peration mode A Stop [… …]

Normal cooling: [… C], Normal heating: [… H], Normal defrosting: [… J]

B –

Outdoor unit HP capacity A

8HP: [… 8], 10HP: [… 10], 12HP: [… 12], 14HP: [14], 16HP: [16], 18HP: [18], 20HP: [20], 22HP: [22]

B […HP]

Compressor operation command * Operation data of each compressor is displayed in turn in 2 second intervals.

Normal: Compressor speed (rps) is displayed in decimal format.

7-segment display (A/B): [C1. ... ... ... ] [ ... , ] [C2. ... ... ... ] [... , ]

<SW04> push SW function: Switches to display of operating current (decimal value). 7-segment display (A/B): [i1. ] [i2. ] Pressing of <SW05> restores normal display.

Outdoor fan mode A [FP]

B Mode 0 to 63: [… 0] to [63]

Compressor backup A [C.b.]

Displays compressor backup setting status Normal: [… … …] Compressor No. 1 backup: [1 … …] Compressor No. 2 backup: [… 1 …]

–A–

B –

Control valve output data Displays co

ntrol output status of solenoid valve A B

………1.HFFO:2evlavyaw-4/NO:evlavyaw-4 ………0.HNO:2evlavyaw-4/FFO:evlavyaw-4

001….2

SV2: ON / SV51: OFF / SV52: OFF

010….2SV2: OFF / SV51: ON / SV52: ON 100….2SV2: OFF / SV51: OFF / SV52: ON

SV3A: ON / SV3B: OFF / SV3C: OFF / SV3D: OFF 3. 1 0 0 0 SV3A: OFF / SV3B: ON / SV3C: OFF / SV3D: OFF 3. 0 1 0 0 SV3A: OFF / SV3B: OFF / SV3C: ON / SV3D: OFF 3. 0 0 1 0 SV3A: OFF / SV3B: OFF

/ SV3C: OFF / SV3D: ON 3. 0 0 0 1

001….4

SV41: ON / SV42: OFF

010….4SV41: OFF / SV42: ON 100….4

SV41: OFF / SV42: OFF

13 PMV1/PMV3 opening Displays opening data in decimal format

. P

…tamroflamicedniatadgnineposyalpsiDgninepo4VMP

. P

Oil level judgment status

].Lo[AlamroN

Initial display: [… … …], Oil level judgment result: [#. .$] Displayed letters #, and $ represent judgment results for compressor Nos. 1 and 2, respectively (“0” for normal and “1” or “2” for low level).

<SW04> push SW function: Displays low lev el confirmed judgment result of each compressor. * Pressing of <SW05> restores

normal display.

A [L d.] B

Compressor No. 1 low level being confirmed: [L … …] Compr

essor No. 2 low level being confirmed: [… L …]

SV2, SV51, SV52

PMV4

PMV1/PMV3 ,

Monitor Function

SW01 SW02 SW03

Pd pressure data A BPd pressure (MPaG) is displayed in decimal format.

(MPaG: Approx. 10 times magnitude of kg/cm2G) P d. 2 Ps pressure data Ps pressure (MPaG) is displayed in decimal format. P s. 3 PL pressure conversion data Converted PL pressure (MPaG) is displayed in decimal format. P L.

... ... 1d tlobmys retteLatad rosnes 1DT Temperature sensor reading (°C) is displayed

ataD.tamrof lamiced ni

* **

TD2 sensor data • Letter symbol and data are displayed Letter symbol t d 2 ... ...

Data

TS1 sensor data

alternately, for 1 second and display for 3

... ... 1S tlobmys retteL.ylevitcepser ,sdnoces

• Data is displayed in [ ].

Data

TS3 sensor data

• Data with negative value is displayed as [– ].

Letter symbol t S 3 ... ...

Data

... ... 1E tlobmys retteLatad rosnes 1ET

Data

... ... 2E tlobmys retteLatad

rosnes 2ET

Data

... ... 1L tlobmys retteLatad rosnes 1LT

Data

... ... 2L tlobmys retteLatad rosnes 2LT

Data

... ... 3L tlobmys retteLatad rosnes 3LT

Data

... ... ...o tlobmys retteLatad rosnes OT

Data

SW01 SW02 SW03

... ... ...1 Flobmys retteLatad rosnes 1KT Temperature sensor reading (°C) is displayed

ataD.tamrof lamiced ni

... ... ...2 Flobmys retteLatad rosnes 2KT

Data

... ... ...4 Flobmys retteLatad rosnes 4KT

Data

... ... ...5 Flobmys retteLatad rosnes 5KT

Data

... ... 1G tlobmys retteLatad rosnes 1GT

Data

... ... 2G tlobmys retteLatad rosnes 2GT

Data

Display detail

1 2

Display detail

(3) Display of Outdoor Cycle Data (Display at each Outdoor Unit)

* **

Monitor Function

liatedyalpsiD30WS20WS10WS

1~3

AError data

[U.

], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

B Check code is displayed (latest one only).

If there is no check code: [– – –].

Type of compressor installed A

[U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

Outdoor unit HP capacity A

[U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

8HP: [… 8], 10HP: [… 10], 12HP: [… 12], 14HP: [14], 16HP: [16], 18HP: [18], 20HP: [20], 22HP: [22]

Compressor operation command A

[U.

], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

B Indicates which compressor is ON.

Any unconnected compressors is represented by “–”. B

1 0 NOsi1.oNrosserpmocnehW

0 1NOsi2.oNrosserpmocnehW

Fan operation mode A

[U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

B At rest: [F … 0], In mode 63: [F 6 3]

Release signal A

[U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

B Normal: [r … …], Upon receiving release signal: [r … 1]

Oil level judgment A

[U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

B Normal: [… … …], Low level: [… … L]

Compressor 1 operating current A

[U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

B [

. ], . is value of operating current in decimal format.

Compressor 2 operating current A

[U.

], : SW03 setting No. + 1 (Outdoor unit No. U2 to U 3)

B [

. ], . is value of operating current in decimal format.

SW03 7-segment display section A

1 U2

2 U3

* This method is used when displaying follower unit information on the 7-segment display of the header unit.

Note: Follower unit is selected by setting SW03.

(4) Display of Outdoor Cycle Data (Display at Header Unit)

Monitor Function

* The latest check code written in the EEPROM of each outdoor unit is displayed. (This function is used to check the check code after the resetting of the power supply.) To display the check code, push SW04 and hold for at least 5 seconds after setting SW01 to 03 as shown in the table below.

• 7-Segment Display

Set SW01/SW02/SW03 to [1/1/16] and push SW04 and hold for at least 5 seconds. The latest che

ck code of the header unit (U1) will be displayed. If the setting of SW02 is changed, the latest check code of a follow unit (U2-U3) will be displayed.

Anoitcesyalpsidtnemges-7sserddaroodnI30WS20WS10WS

1 E. 1

*** *** ***

Latest

check code

of header unit (U1)

Latest

check code

of follower unit No. 1 (U2)

Latest

check code

of follower unit No. 2 (U3)

E. 2.

3 E. 3.

Section A

Section B

D600 D601 D602 D603 D604

(5) Display of Indoor Unit information (Display on Header Unit only)

(6) Display of Outdoor EEPROM Writing Check Code (Display at each Outdoor Unit)

Indoor BUS communication signal receiving status

Upon receiving signal: [... ... 1], Other times: [... ... ...]

B5 Indoor check code No check code: [– – –]

Indoor HP capacity 0. 2, 0. 5, 0. 8, ... 1, 1. 2, 1. 7, ... 2, 2. 5,

...3, 3. 2, ...4, ...5, ...6, ...8, 1 0, 1 6, 2 0

8 Indoor PMV opening data Displayed in decimal format

1~4

1~16

Indoor TA / TRA opening data Displayed in decimal format

11~1 Indoor TSA opening data

Displayed in decimal format

10 Displayed in decimal format

1~ Indoor TF / TFA opening data

11~1

Indoor TOA opening data

Displayed in decimal format

B11 Indoor TCJ opening data Displayed in decimal format

B12 Displayed in decimal format

B13

1~ Indoor TC1 opening data

Indoor TC2 opening data

Displayed in decimal format

Indoor request command (S code, operation mode)

[ #. ... ]

# represents mode:

COOL: [C. ...

], HEAT: [H. ... ]

FAN: [F. ... ], OFF: [S. ... ]

represents S code: [#. ... 0] to [#. ... F]

SW01 SW02 SW03 Display detail

Note: Indoor address No. is selected by setting SW02 and SW03 and displayed on 7-segment display, section A.

SW02

1~16

SW03

Indoor address

SW02 setting number

SW02 setting number +16

SW02 setting number +32

7-segment display section A

[01]~[16]

[17]~[32]

[33]~[48]

SW02 setting number +48

[49]~[64]

Service Support Function

Check Function for Connecting of Refrigerant and Control Lines

This function is provided to check misconnection of the refrigerant pipes and the control transmission line (Wiring over lines) between indoor unit and outdoor unit by using the switch on the interface P.C. board of the header unit. However, be sure to check the following items prior to executing this check function.

1 This check function does not work when a group operation by remote controller is performed and it is

used over outdoor units.

2 When using this check system, be sure to check for each 1 line in the unit of outdoor unit. If checking

the multiple lines at the same time, misjudgment may be caused.

(Check procedure)

Power ON

-10

10 43

(7-segment display)

[A]

[ .]

System horsepower

[B]

[ HP]

(7-segment display)

[A]

[ .]

[B]

[ P]

(7-segment display)

[A]

[ .]

[B]

[C ]

(7-segment display)

[A]

[ .]

[B]

[H ]

(7-segment display)

[A] [ J .C ] [ J .H ]

Cooling Heating

[B] [ ] [ ]

Be sure to turn on the power at indoor side before power-ON of outdoor unit.

System capacity check Set the

rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/2/3]. Then the system capacity is displayed on 7-segment display [A]. Check that this display surely matches with the expected system capacity.

Check No. of outdoor units Set the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/3/3]. Then No. of outdoor units connected to the system

is displayed on 7-segment display [A]. Check that this display surely matches with the expected No. of outdoor units.

Check No. of indoor units/No. of units with cooling thermostat ON Set the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/4/3]. Then No. of indoor units connected to the system is displayed on 7-segment display [A]. Check that this display surely m

atches with the

expected No. of indoor units.

Check No. of indoor units/No. of units with heating thermostat ON Set the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/5/3]. Then No. of indoor units connected to the system is displayed on 7-segment display [A]. Check that this display surely matches with the expected No. of indoor units.

Check incorrect wiring Accor

ding to the indoor temperature, select one of the following items for setup of the rotary switches on the interface P.C. board of the header unit. Cooling: SW01/SW02/SW03 to [2/1/1] Heating: SW01/SW02/SW03 to [2/2/1]

No. of

connected

outdoor units

No. of

connected

outdoor

units

No. of units

with cooling

thermostat ON

No. of

connected

outdoor

units

No. of units

with heating

thermostat ON

SW02 to

[2]

(Heating)

SW02 to

[1]

(Cooling)

Service Support Function

Note 1: Criteria for the difference between suction and discharge temperatures

(1) Cooling operation

After operating for a minimum of 30 minutes in “COOL” mode, if the T dry bulb temperature difference between suction and discharge air of the indoor unit is 8°C deg or more, it is normal.

(2) Heating operation

After operating for a minimum of 30 minutes in “HEAT” mode, if the T dry bulb temperature difference between suction and discharge air of the indoor unit is 15°C deg or more, it is normal.

* If demand from the indoor unit on the outdoor unit is low because the difference between the temperature set

by the remote controller and the temperature of the room is small, then the T temperature difference is small.

* Consider that T temperature difference may diminish in cases of a system in which the co

nnected indoor unit capacity exceeds the outdoor unit capacity, the pipe length is long, or a large difference exists among outdoor units.

Note 2: Criteria for operating power current

The table below shows the maximum current for each outdoor unit. Under standard conditions, operating current is about 80% of the value shown in the table below.

Note 3: Criteria for cycle status

(1) These data are based on operating a 4-way Air Discharge Cassette type air conditioner of 100% connection

with standard piping length. Data may vary depending on temperature conditions, installed pipe length, and room shape combinations, or indoor unit connection capacity. For pressure criteria in different temperature conditions, refer to (2).

* This compressor is driven with a 4-pole motor. The value of the compressor frequency (rps) measured with a clamp meter at the compressor lead line is two times the rotation count (rps) of the compressor. * Each compressor may have a different frequency as a measure against resonance. * The temperature of the indoor heat exchanger (TC) indicates TCJ sensor temperature when cooling, and TC2 sensor temperature when heat

ing, respectively

(2) Criteria for operating pressure

* Criteria after 15 minutes or more has passed since operating started

Indoor temperature (°C)

Outdoor temperature (°C)

Operating mode Cooling Heating

15~25

5~10

2.5~3.3

0.5~0.7

18~32

25~35

2.0~3.7

0.5~0.9

Pressure

High pressure (MPa)

Low pressure (MPa)

Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating

2.9

2.6

3.1

2.6

3.2

2.6

3.1

2.6

3.2

2.6

3.2

2.8

3.1

2.6

3.1

2.6

3.1

2.8

3.2

2.7

3.1

2.8

0.9

0.7

0.9

0.7

0.9

0.7

0.9

0.7

0.9

0.7

0.9

0.7

0.9

0.7

0.9

0.7

0.9

0.6

0.9

0.6

0.9

0.7

80 75 85 80 90 85 85 80 90 80 90 85 75 65 80 70 85 75 95 75 80 70

10 35 11 35 11 35 10 35 10 35 10 30 11 30 11 30 11 30 11 30 11 30

30 30 30 30 30 25 30 30 35 30 35 25 35 30 35 25 35 25 35 20 35 25

50 50 60 65 70 75 50 55 60 65 70 70 60 65 70 75 80 85

100

85 70 75

50 50 60 65 70 75 50 55 60 65 70 70 60 65 70 75 80 85

100

85 70 7

High High High High High High High High High High High High High High High High High High High High High High

27/19

20/-

27/19

20/-

27/19

20/-

27/19

20/-

27/19

20/-

27/19

20/-

27/19

20/-

27/19

20/-

27/19

20/-

27/19

20/-

27/19

20/-

35/-

7/6

35/-

7/6

35/-

7/6

35/-

7/6

35/-

7/6

35/-

7/6

35/-

7/6

35/-

7/6

35/-

7/6

35/-

7/6

Outdoor

unit

MMY-

MAP

Operating

mode

Pressure

(MPa)

Indoor

fan

Indoor

Outdoor

Compressor

Compress

Pipe surface temperature

(°C)

Air temperature

condition

(DB/WB) (°C)

Number of compressor

rotations

(rps)

Discharge

(TD)

Suction

(TS)

Outdoor

heat

exchanger

(TE)

Liquid

temperature

(TL3)

Indoor heat

exchanger

(TC)

0806*

1006*

1206*

1406*

1606*

14A6*

16A6*

1806*

2006*

2206*

10A6*

2206* : Heat Recovery type Not use

Outdoor unit MMY-MAP 0806* 1006*

1206*

14B6*

1406*

1606* 18B6* 1806* 2006* 2206*

Current value (A)

20.5 21.5 26.1 29.4

31.0

35.8 39.9 40.6 44.9 49.3

Service Support Function

Operation

(7-segment display)

[A] [ C ] [ H ]

Cooling Heating

[B] [ CC ] [ HH ]

(7-segment display)

[A]

[ ]

C or H

[B]

[ # # P]

(7-segment display)

[A]

[ ]

C or H

[B]

[ # # ]

(7-segment display)

[A]

[U1]

[B]

[ ]

Operation start Press the push-switch SW04 on the interface P.C. board of the header unit for 2 seconds or more. The operation starts. Check that 7-segment display [B] shows [ CC] for cooling and [ HH] for heating.

Confirmation of check results (1) Check that No. of misconnected indoor u

nits is displayed on 7-segment display [B] after 15 minutes. (If there is no misconnection, [00P] is displayed.)

Confirmation of check results (2) Push the push-switch SW05 on the interface P.C. board of the header unit for 2 seconds or more. The indoor address in which error is being detected is displayed on 7-segment display [B]. If there are multiple indoor address in which check code is being detected, they are succe

ssively exchanged and displayed. (When SW05 is turned on again, the display returns to display of No. of units.

After check, return the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1].

No. of misconnected

indoor units

This check operation requires 15 minutes even if there is no misconnection or there is any misconnection.

Address display of misconnected

indoor unit

7-segment display [A] 7-segment display [B]

SW04 SW05

SW02 SW03SW01

Service Support Function

Function to Start / Stop ( On / Off ) Indoor Unit from Outdoor Unit

The following functions of the indoor unit can start or stop by the switches on the interface P.C. board of the header unit.

NOTE 1) This start/stop function only sends the signals from the outdoor unit to the indoor unit, such as start,

stop, operation mode, etc. It does not resend the signals even if the indoor unit does not follow the sent signals.

NOTE 2) The above controls are not used during abnormal stop.

yalpsid tnemges-7esaeleR/puteSeniltuOnoitcnuF.oN

Straight

cooling test operation

Changes the mode of all the connected indoor units collectively to cooling test operation. Note)

Control operation same as usual test operation from remote control is performed.

[Setup] Set SW01/SW02/SW03 to [2/5/1], and push SW04 for 2 seconds or more. [Release] Return SW01/SW02/SW03 to [1/1/1].

Section A

[C. ]

[ 00] is dis

played on Section B for 5

seconds.

Section B

[ – C]

heating test operation

Changes the mode of all the connected indoor units collectively to heating test operation. Note)

Control operation same as usual test operation from remote control is performed.

[Setup] Set SW01/SW02/SW03 to [2/6/1], and push SW04 for 2 seconds or more. [Release] Return SW01/SW02/SW03 to [1/1/1].

Section A

[H. ]

Section B

[ – H]

3 Fan test

operation

Changes operation mode of all the connected indoor units collectively to test operation mode. Note) Control operation same as

usual test operation from remote control is performed.

[Setup] Set SW01/SW02/SW03 to [2/9/1], and push SW04 for 2 seconds or more. [Release] Return SW01/SW02/SW03 to [1/1/1].

Section A

[F. ]

Section B

[ – F]

4 Batch start Starts all the connected indoor

units collectively. Note)

The contents follow to the setup of remote controller.

[Setup] Set SW01/SW02/SW03 to [2/7/1], and push SW04 for 2 seconds or more. [Release] Return SW01/SW02/SW03 to [1].

Section A

[C.H]

Section B

[ 11]

Section A: Displays the corresponding indoor address. Section B: Displays [ 11] for 5 seconds from operation-ON.

5 Individual

start

Starts the specified indoor unit. Notes)

• The contents follow to the setup of remote controller.

• The other indoor units keep the status as they are.

[Setup] Set SW01 to [16], set SW02 and SW03 to address No. (1 to 40) to be started, and push SW04 for 2 seconds or more. [Release] Return SW01/SW02/SW03 to [1/1/1].

Section A

[ ]

Section B

[ ]

Section A: Displays the corresponding indoor address. Section B: Displays [ 00] for 5 seconds from operation-OFF.

Individual stop

Stops the specified indoor unit. Note)

The other indoor units keep the status as they are.

[Setup] Set SW01 to [16], set SW02 and SW03 to address No. (1 to 40) to be stopped, and push SW05 for 2 seconds or more. [Release] Return SW01/SW02/SW03 to [1/1/1].

Section A

[ ]

Section B

[

]

Section A: Displays the corresponding indoor address. Section B: Displays [ FF] for 5 seconds from test operation-ON.

Individual test operation

Operates the specified indoor unit. Note)

The other indoor units keep the status as they are.

[Setup] Set SW01 to [16], set SW02 and SW03 to address No. to be operated, and push SW04 for 10 seconds or more. [Release] Return SW01/SW02/SW03 to [1/1/1].

Section A

[ ]

Secti

on B

[ ]

[ 00] is displayed on Section B for 5 seconds.

Batch stop Stops all the connected indoor

units collectively.

[Setup] Set SW01/SW02/SW03 to [2/7/1], and push SW05 for 2 seconds or more. [Release] Return SW01/SW02/SW03 to [1].

Section A

[C.H]

Section B

[ 00]

SW04 SW05

7-segment display [A] 7-segment display [B]

SW02 SW03SW01

Service Support Function

(1) All cooling test operation function

This function is provided to change collectively the mode of all the indoor units connected to the same system for the cooling test operation mode, by using switches on the interface P.C. board of the header unit.

NOTE)The test operation returns to the normal operation after 60 minutes.

Power ON

Start

Operation check

[A]

[C. ]

[B]

[ – C]

Stop/End

Be sure to turn on power at the indoor side before power-ON of outdoor unit.

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/5/1]. ([C. ] is displayed on 7-segment display [A].)

[Test run] is displayed on the remote controller of the indoor unit to be operated. Check that [ – C] is displayed on 7-segment display [B] on the interface P.C. board of the header unit.

Push S

W04 on the same board for 2 seconds or more.

Return SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1], or push the push switch SW05 for 2 seconds or more.

SW04 SW05

SW02 SW03SW01

7-segment display [A] 7-segment display [B]

Service Support Function

(2) All heating test operation function

This function is provided to change collectively the mode of all the indoor units connected to the same system for the heating test operation mode, by using switches on the interface P.C. board of the header unit.

NOTE)The test operation returns to the normal operation after 60 minutes.

[A]

[H. ]

[B]

[

–

Power ON

Start

Operation check

Stop/End

Push SW04 on the same board for 2 seconds or more.

[Test run] is displayed on the remote controller of the indoor unit to be operated. Check that [ – H] is displayed on 7-segment display [B] on the interface P.C. board of the header unit.

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/6/1]. ([H ] is displayed on 7-segment display [A].)

Be sure to turn on power at the i

ndoor side

before power-ON of outdoor unit.

Return SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1], or push the push switch SW05 for 2 seconds or more.

SW04 SW05

7-segment display [A] 7-segment display [B]

SW02 SW03SW01

Service Support Function

(3) Single fan test operation function

This function is provided to change collectively the mode of all the indoor units connected to the same system for the fan test operation mode by using switches on the interface P.C. board of the header unit.

NOTE)The test operation ends after 60 minutes and the operation returns to normal status.

[A]

[F. ]

[B]

[

–

Power ON

Operation

Operation check

Stop/End

Push the push switch SW4 for 2 seconds or more on the P.C. board.

[Test run] is displayed on the remote controller of the indoor unit to be operated. Check that 7-segment display [B] on the interface P.C. board of the header unit changed to [– C]

Match [SW01/SW02/SW03] on the interface P.C.board of the header unit to [2/5/1]. (7-segment display [A] changes to [F. ].)

Be sure to turn on power of t

he indoor unit

and then turn on power supplies at outdoor unit side.

Return [SW01/SW02/Sw03] on the interface P.C. board of the header unit to [1/1/1]. or push the push switch [SW05] for 2 seconds or more.

SW04 SW05

7-segment display [A] 7-segment display [B]

SW02 SW03SW01

Service Support Function

(4) Batch start/stop (ON/OFF) function

This function is provided to start/stop collectively all the indoor units connected to the same system by using switches on the interface P.C. board of the header unit.

Power ON

Start

Stop

End

Operation check

Be sure to turn on power at the indoor side before power-ON of outdoor unit.

If check code is already displayed with SW01/SW02/SW03 being [1/1/1], return the status to normal one according to troubleshooting and then execute a test operation.

The unit which is not given with priority by heating priority control, cooling priority control, and selection of cooling or heating mode is not operated. In th

is case, " operation ready" or " operation

mode controlled" is displayed on the remote controller.

If the discharge temperature does not change though COOL or HEAT has been set up from the remote controller, misconnection is considered.

Push SW04 on the same board for 2 seconds or more.

The indoor unit to be started operates.

Push the push switch SW05 on the interface P .C. board of the header

unit for 2 seconds or more.

After test operation, return the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1].

Set up the operation mode of the remote controller. (If it is not set up, the operation continues with the current mode.) (FAN/COOL/HEAT)

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/7/1]. ([C.H ] is displayed on 7-segment disp

lay [A].)

SW04 SW05

7-segment display [A] 7-segment display [B]

SW02 SW03SW01

Service Support Function

(1) Clearing from the main remote controller

Check code clearing in outdoor unit

Check code of the outdoor unit currently detected is cleared by the unit of one refrigerant circuit system to which the indoor units operated by the remote controller is connected. (Check code of the indoor unit is not cleared.) For clearing check codes, the service monitor function of the remote controller is used.

1 Change the mode to service monitor mode by pushing

TEST

buttons simultaneously for 4 seconds or

more.

2 Using

TEMP

buttons, set CODE No. to “ ”.

3 The display in Section A in the following figure is counted with interval of 5 seconds as

“

“ ” ”

”

“ “ ” “ ” “ ” . When the count arrives “ ”,the check code is cleared. * However, counting from “ ” is repeated on the display.

4 When

TEST

button is pushed, the status returns to the normal status.

Check code clearing in indoor

Check code in the indoor unit is cleared by button on the remote controller. (Only check code of the indoor unit connected with operating remote controller is cleared.)

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

Section A

→

→→

→

Service Support Function

(2) Clearing check code by using switches on the interface board of the header unit

Using the switches on the interface P.C. board of the header unit, this function is to clear the currently detected check code for each refrigerant circuit system without resetting the power supply. Check codes in both outdoor and indoor units are once cleared, and check code detection is performed again.

(3) Clearing check code by resetting power

This function is provided to clear check code in a system by resetting the power of all the outdoor and the indoor units. As same as the clearing method by the interface P.C. board, check codes of both the outdoor and the indoor units are once cleared, and check code detection is performed again.

(1) Be sure to reset power of both the outdoor and the indoor units. (2) Turn on the power of the indoor unit prior to the power of the outdoor unit. (If the power is turned on in reverse order, a check code [

] (No. of header unit check code ) is output.)

NOTE)After power reset, it requires usually 3 minutes to power-on due to the initial communication of the system.

In some cases, it requires max. 10 minutes.

7-segment display

[A] [B]

[ E r ] [ ]

7-segment display

[A] [B]

[ E r ] [ C L ]

Set the rotary switches on the interface P.C. board of the header unit as follows. Set SW01/SW02/SW03 to [2/16/1]

Push the push switch SW04 on the same board for 5 seconds or more.

[ C L] is displayed in 7-segment display [B] on the board (for 5 seconds), and the error is completely cleared.

Interface P.C. board

SW04 SW05

SW02 SW03SW01

7-segment display [A] 7-segment display [B]

Service Support Function

Remote Controller Distinction Function

This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit for a refrigerant circuit system by using switches on the interface P.C. board of the header unit.

Power ON

End

Check the connected remote controller

Operation

7-segment display

[A] [B]

[

A 1

] [ ]

7-segment display

[A] [B]

[

A 1

] [

]

Be sure to turn on the power of the indoor unit prior to the power of the outdoor unit.

Set the display select switches on the interface P.C. board of the header unit as follows: Set SW01/SW02/SW03 to [2/4/1]

Push the push switch SW04 on the same board for 2 seconds or more.

"Checking" display of the connected remote controller flashes.

Push the push switch SW05 on the interface P.C. board of the heade

unit for 2 seconds or more.

Other end conditions:

1. 10 minutes has passed

2. SW01, SW02, or SW03 changed to other position.

Interface P.C. board

SW04 SW05

SW02 SW03SW01

7-segment display [A] 7-segment display [B]

Service Support Function

Pulse Motor Valve (PMV) Forced Open / Close Function in Indoor Unit

ulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit

This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch operation on the interface P.C. board of the header unit. This function is also used to open PMV fully when turning off the power and executing an operation.

[Open fully]

Set the switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/3/1], and push SW04 for 2 seconds or more. (Display appears on 7-segment display for 2 minutes as follows.) [ ] [ ]

[Close fully]

Set the switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/3/1], and push SW05 for 2 seconds or more. (Display appears on 7-segment display for one minute as follows.) [ ] [ ]

[Clear]

After 2 minutes (1 minutes for “Close fully”) after setting up, the opening automatically returns to the normal opening.

This function is provided to forcedly open or close fully P.M.V. (PMV1/PMV3, PMV4) used in the outdoor unit for 2 minutes.

[PMV1 Open fully]

On the interface board of the outdoor unit, set the DIP switch [SW12·bit1] to [OFF], [SW12·bit2] to [OFF], and shortcircuit CN30.

[PMV1 Close fully]

On the interface board of the outdoor unit, set the DIP switch [SW12·bit1] to [OFF], [SW12·bit2] to [OFF], and shortcircuit CN31.

< Heat Recovery type Not use >

On the interface P.C. board of the outdoor unit, set the DIP switch [SW12·bit1] to [ON], [SW12·bit2] to [OFF], and shortcircuit CN30.

[PMV3 Close fully]

On the interface P.C. board of the outdoor unit, set the DIP switch [SW12·bit1] to [ON], [SW12·bit2] to [OFF], and shortcircuit CN31.

[PMV4 Open fully]

On the interface board of the outdoor unit, set the DIP switch [SW12·bit1] to [OFF], [SW12·bit2] to [ON], and shortcircuit CN30.

[PMV4 Close fully]

On the interface board of the outdoor unit, set the DIP switch [SW12·bit1] to [OFF], [SW12·bit2] to [ON], and shortcircuit CN31.

[Clear]

For both open fully and close fully, after 2 minutes, the opening returns to the normal opening. Be sure to remove the cord used for short-circ

uit after confirmation, and set the DIP switch [SW12·bit1] to [OFF]

and [SW12·bit2] to [OFF].

Pulse Motor Valve (PMV) Forced Open fully / Close fully Function in Outdoor Unit

Service Support Function

Solenoid Valve Forced Open / Close Function in Outdoor Unit

This function is provided to forcedly open each solenoid valve mounted in the outdoor unit by the switch operation on the interface P.C. board in the outdoor unit. Use this function to check there is no refrigerant clogging with ON/ OFF operation of the solenoid valve.

[Operation]

(1) Set the switches SW01/SW02/SW03 on the interface P.C. board of the outdoor unit to [2/1/3]. (2) When [H. r] is displayed

in 7-segment display [A], keep pushing the switch SW04 for 2 seconds or more. (3) From when [ 2 ] is displayed in 7-segment display [B], SV2 is turned on. (4) After then, ON and OFF of each solenoid valve are exchanged by changing the setup number of the switch

SW02. (ON/OFF output pattern of each solenoid valve is as shown below.)

NOTE 1) Display in 7-segment display [B] is exchanged just when the number of SW02 has been changed; on the

other hand, the solenoid valve output is exchanged when SW02 has been kept with the same number for 5 seconds or more.

NOTE 2) The mark [O] in the table indicates that the corresponding solenoid valve is forcedly turned on. NOTE 3) The mark [-] in the table indicates that ON/OFF of the solenoid valve is controlled based upon the specifi-

cations of the air conditioner.

NOTE 4) The mark [×] in the table indicates that the corresponding solenoid valve is forcedly turned off with this

operation.

NOTE 5) The case heater output is for both the compressor and accumulator heaters.

[Clear]

Return switches SW01/SW02/SW03 on the interface P.C. board to [1/1/1].

NOTE)As this function is not based on the specified general control, be sure to release this mode after checking.

SV2 SV52 SV41 SV42 SV3A SV3B SV3C SV3D

1 [ 2 ]

- - - - - - 3 [ 52] - - - - - - 4 [ 41] - - - - - - 5 [ 42] - - - - - - 7 [ 3A] - - - - - - 8 [ 3b] - - - - - - 9 [ 3C] - - - - - - -

10 [ 3d] - - - - - - 11 [ 3-] - - - -

12 15

- - - - - - - -

16 [ALL]

SW02

7-segment

display [B]

Operation pattern of solenoid valve

Case heater output relay

SV2 SV 5 SV41 SV42 SV3A SV3B SV3 C SV3D SV3E SV6 SV52 SV11 SV12 SV14

1 2 3 4 6 7 8

9 10 11 12 13 14 15 16

[2]

[5] [41] [42]

[3A]

[3b]

[3C]

[3d]

[3-]

[6] [52] [11] [12] [14]

[ALL]

○

○ ○

○

○ ○

○

○ ○

○

○ ○

○

○ ○

○

○ ○

○

○ ○

○

○ ○

○

SW02

7-segment display [B]

Case heater output relay

Operation pattern of solenoid valve

¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯

¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯

¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯

¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯

¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯

¯ ¯ ¯ ¯ ¯ ¯

¯ ¯ ¯ ¯

¯ ¯ ¯ ¯ ¯

¯ ¯

¯¯ ¯

Cooling, Heat Pump type

Heat Recovery type

Service Support Function

Fan Operation Check in Outdoor Unit

This function is provided to check the fan operation of the outdoor unit by using switches on the interface P.C. board in the outdoor unit. The frequency of the fan speed can be controlled by setting of the switches. Use this function to check the operation or abnormal sound in the fan system. And, use this function while the system is stopped.

NOTE)Do not use this function during operation of the compressor. It may damage the compressor.

[Operation]

(1) Set the switches SW01/SW02/SW03 on the interface P.C. board of the outdoor unit to [2/1/4]. (2) When [F. d] is displayed in 7-segment display [A], keep pushing the switch SW04 for 2 seconds or more. (3) When [ 63 ] is displayed in 7-segment display [B], the fan starts operation. (Max. mode operation) (4) After that, by changing the setup number of the switches SW02 and SW03, 7-segment display [B] and the fan

mode are changed. (Mode output pattern of the fan is as follows.)

[Clear]

This function is cleared by one of the following operations. (1) When SW01 setting number was changed to other number. (2) Push-switch SW05 was push for 2 seconds or more.

SW02 SW03 7-segm ent displ ay [B] Fan mo de

[ 63 ] 63

2 [ 62 ] 62

3 [ 61 ] 61

4 [ 60 ] 60

5 [ 59 ] 59

6 [ 58 ] 58

7 [ 57 ] 57

8 [ 56 ] 56

9 [ 55 ] 55

10 [ 54 ] 54

11 [ 53 ] 53

12 [ 52 ] 52

13 [ 51 ] 51

14 [ 50 ] 50

15 [ 49 ] 49

16 [ 48 ] 48

[ 47 ] 47

2 [ 46 ] 46

3 [ 45 ] 45

4 [ 44 ] 44

5 [ 43 ] 43

6 [ 42 ] 42

7 [ 41 ] 41

8 [ 40 ] 40

9 [ 39 ] 39

10 [ 38 ] 38

11 [ 37 ] 37

12 [ 36 ] 36

13 [ 35 ] 35

14 [ 34 ] 34

15 [ 33 ] 33

16 [ 3

2 ] 32

SW02 SW03 7-segm ent displ ay [B] Fan mo de

[ 31 ] 31

2 [ 30 ] 30

3 [ 29 ] 29

4 [ 28 ] 28

5 [ 27 ] 27

6 [ 26 ] 26

7 [ 25 ] 25

8 [ 24 ] 24

9 [ 23 ] 23

10 [ 22 ] 22

11 [ 21 ] 21

12 [ 20 ] 20

13 [ 19 ] 19

14 [ 18 ] 18

15 [ 17 ] 17

16 [ 16 ] 16

[ 15 ] 15

2 [ 14 ] 14

3 [ 13 ] 13

4 [ 12 ] 12

5 [ 11 ] 11

6 [ 10 ] 10

7 [ 9 ] 9

8 [ 8 ] 8

9 [ 7 ] 7

10 [ 6 ] 6

11 [ 5 ] 5

12 [ 4 ] 4

13 [ 3 ] 3

14 [ 2 ] 2

15 [ 1 ] 1

16 [

0 ] 0

Service Support Function

Abnormal Outdoor Unit Discrimination Method by Fan Operation Function

This function is provided to forcedly operate the fan of the outdoor unit in which a check code occurred or the fan of the normal outdoor unit by the switch operation on the interface P.C. board in the header unit. To specify which one of the follower units connected to the system had problem, use this function for the system stop due to a follower unit failure (Check code [ ]).

[Operation] <In case to operate the fan in the failed outdoor unit only>

(1) Check that the switches SW01/SW02/SW03 on the interface P.C. board in the header unit are set to [1/1/1].

(2) Press the push-switch SW04 for 2 seconds or more. (3) [E 1] is displayed on 7-segment display [A]. (4) The fan of the outdoor unit in which check code occurred starts operation within approx. 10 seconds after [ ] was displayed.

(1) Check that the switches SW01/SW02/SW03 on the interface P.C. board in the header unit are set to [1/1/1]. (2) Push the push switches SW04 and SW05 at the same time for 2 seconds or more. (3) [ ] is displayed on 7-segment display [A]. (4) The fans of all the normal outdoor units start operation with the Max. fan speed within approx. 10 seconds after

[

] was displayed.

[Release]

Push the push switch SW05 on the interface P.C. board in the header unit for 2 seconds or more. The outdoor fan which was operated stops.

* Check that [ ]is displayed on 7-segment display [A], and then finish the work.

[A] [B]

7-segment display

Outdoor unit No.

Check code display

Service Support Function

Manual Adjustment

)OT( erutarepmeT edistuO fo noitcnuF tnemtsujdA launaM .01-7-7

Sensor

This function is provided to fix TO sensor value manually by the switch operation on the interface P.C. board in the

outdoor unit. When the unit stops abnormally due to TO sensor failure, etc, an emergent operation is available by setting up the value manually to position near the current outside temperature.

[Operation]

(1) Set the rotary switches on the interface P.C. board to numbers as follows:

• SW01/SW02/SW03 to [2/1/15]

• 7-segment display: [ t o ]

(2) Keep pressing the push-switch SW04 on the interface P.C. board for 1 second or more. The mode changes to

the TO sensor value fix manual mode.

(3) As shown in the following table, TO sensor value can be fixed by setting the rotary switch SW02 on the interface

P.C. board.

[Clear]

Return SW01/SW02/SW03 on the interface P.C. board in the outdoor unit to [1/1/1].

NOTE) If operated with TO sensor fixed by t

his function, the system control operation of the air conditioner may not be based on the specification of the product. Therefore an emergent operation should be restricted to a day or so.

SW02 7-segment display [B] T O sensor value

1 [ 10 ] 10°C

2 [ 15 ] 15°C

3 [ 20 ] 20°C

4 [ 25 ] 25°C

5 [ 30 ] 30°C

6 [ 35 ] 35°C

7 [ 40 ] 40°C

8 [ 43 ] 43°C

9 [ 45 ] 45°C

10 [ –15 ] -15°C

11 [ –10 ] -10°C

12 [ – 5 ] -5°C

13 [ 0 ] 0°C

14 [ 2 ] 2°C

15 [ 5 ] 5°C

16 [ 7 ] 7°C

When the outside temperature is 45ºC or more, set to 45ºC (SW02="9")

Service Support Function

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)noitarepo gnilooC( noitcnuf kcehc enil noitacinummoc lortnoc dna tiucric tnaregirfeR]C . J[1

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noitcnuf nepo lluf decrof VMP roodnI] . P[3

noitcnuf gnitanimircsid rellortnoc etomer roodnI]1 . A[4

5 1 noitcnuf noitarepo tset gnilooC] . C[2

3 noitcnuf esolc/nepo decrof evlav dioneloS]r . H[2

1~16 4~7 noitcnuf noitarepo decrof naF]d . F[2

15 noitcnuf tnemtsujda launam rosnes erutarepmet edistuO]o . t[2

noitcnuf noitarepo tset gnitaeH] . H[6

noitcnuf )FFO/NO( pots/trats evitcelloc roodnI]H . C[7

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Check code clear function

]r . E[61

SW01 SW02 SW03

7-segment display [A/B]

Function contents

1 1 Follower unit check code / Corresponding unit fan operation function] 82E [ ]1 U[1

1 [0 1]~[1 6] Indoor No. 1 to 16 unit

1~16

[1 7]~[3 2] Indoor No. 17 to 32 unit

3 [3 3]~[4 8] Indoor No. 33 to 48 unit

4 [4 9]~[6 4] Indoor No. 49 to 64 unit

Indoor individual start/stop (ON/OFF) function

Refrigerant Leakage Detection

The refrigerant leakage and be confirmed by using the switches on interface PCB of the outdoor unit. If there is a leak, the location must be found in order to recover the refrigerant. After that, implement appropriate countermeasure and refill the refrigerant to its standard volume.

Refrigerant leaks can be detected by comparing the Actual opening of PMV with the calculated opening of PMV* during the Operation. * Calculated opening of PMV : calculated from the initial value (C.i / H.i ), the pressure sensor value, the compressor’s rotation speed, and the opening of PMV. The initial values are automatically saved when the specified conditions are met. (A leak can be detected only when C.i / H.i = 1)

[Operation] (1) Confirming the refrigerant leakage

(2) Clearing the initial valve

(3) Checking the record of the initial value

[ Clear ]

Note (a) During the operation, the slow leaks can be detected.

(b) Poor refrigerant circulation may be detected as a refrigerant leaks.

(d) The initial value can not be saved until the accumulated operating time has reached at least 20 hours. (e) The initial value can not be saved if the indoor unit’s operating ratio is low.

(f) If the following indoor units are connected, leakage determination is not possible.

(c) Due to the outside temperature, the initial value may not be recorded, or it may be impossible to determine the leakage.

SW01 SW02 SW03 Display detail

2 13 14 Refrigerant leakage detection

AB[ L. d ]

SW01 SW02 SW03 Display detail

2 14 14 Colling initial value

A [ C. i ]

Incomplete : [... ... 0]

Completed : [... ... 1]

2 15 14 Heating initial value

A [ H. i ]

Incomplete : [... ... 0]

Completed : [... ... 1]

Clear the data : [... C.L] (Only display for 5 seconds)

Set SW01 to 03 as show in the following table to confrim whether the leaks are being detected. (It also can be confirmed by remote control monitor function. Refer to monitor function of remote controller switch)

If the system is changed (e.g. indoor units are increased / replaced, outdoor units are moved, of refrigerant is refilled / increased) it is necessary to clear the initial value that had been saved. Make sure that the compressor has stopped, and then press and hold SW04 for at least 5 seconds.

Set SW01 to 03 as shown in the following table to confirm the record of the initial value.

Return SW01 / SW02 / SW03 on the interface PCB in the Outdoor Unit to [1 / 1 / 1].

However, if the air-conditioner can not cooling down / can not warming up / make an unusual stop, the slow leaks might not be detectable. The fast leaks always can not be detected.

(e.g. plugged strainers / capillaries, malfunction / clogging of the PMV / 2-way valve / 4-way valve)

Air to air heat exchanger with DX coil unit.

Outdoor Interface P.C board

Swithch / Function Setting Exchange

SW06 DIP SW 4 bit

bit 1 Compressor 1 backup OFF: Normal, ON: Backup when compressor 1

was in trouble

Part typ e

Exchang e conten ts

Initial setting

at shipment

OFF

SW07 DIP SW 4 bit

bit 1 Demand control 1

(Standard specifications) Exchange of upper limit regulation

OFF: 0 to 100% ON

: Middle to 100%

OFF

SW09 DIP SW 4 bit

In case of header outdoor unit

bit 2 Demand control 2 (Expansion function)

Exchange of 2 steps to 4 steps of upper limit

OFF: 2 steps (Standard) ON

: 4 steps

OFF

bit 2 Compressor 2 backup OFF: Normal, ON: Backup when compressor 2

was in trouble

OFF

In case of terminal outdoor unit

bit 2 Indoor connection capacity over

Judgment of error

OFF: Check code judgment ON

: None (when backup setting for outdoor unit)

OFF

bit 4 Judgment of error for No. of connected

indoor units

OFF: No check code judgment ON

: Check code judgment

OFF

SW10 DIP SW 4 bit

bit 2 Outdoor fan high static pressure

operation

OFF: Normal ON

: High static pressure operation

OFF

SW12 DIP SW 4 bit

bit 1 Selection of PMV open/close or

manual operation

(According to the following setting contents) OFF

bit 1 bit 2

OFF OFF

OFF ON

PMV1 opens/closes by operation of CN30/CN31 (*1)

PMV3 opens/closes by operation of CN30/CN31 (*1)

PMV4 opens/closes by operation of CN30/CN31 (*1)

bit 2 OFF

SW11 DIP SW 4 bit

bit 4 Operation switching when indoor water

overflow error detected

OFF: Entire system stops ON

: System operation continues

(Room which trouble occurred only stops.)

OFF

SW16 DIP SW 4 bit

bit 1 Option function

Output exchange of external output P.C. boa

(According to the following setting contents) OFF

SW14 DIP SW 4 bit

bit 1 Line address setup OFF

bit 1 bit 2 OFF OFF Compressor operation output

ON OFF

bit 2 OFF

bit 3 OFF bit 4 OFF

SW13 DIP SW 4 bit bit 4 Line address setup

(Used by combining with SW14)

OFF

Display of system operation ratio

CN30 Check connector

Manual full opening operation for PMV opening operation

When released: Normal, When short-circuited: Open fully (2 minutes)

Released

SW30 DIP SW 2 bit

bit 1 Communication termination resistance

between outdoor units

OFF: No termination resistance ON

: With termination resistance

CN31 Check connector

Manual full closing operation for PMV opening operation

When released: Normal, When short-circuited: Closed fully (2 minutes)

Released

bit 2 Communication termination resistance

between indoor and outdoor units

OFF: No termination resistance ON

: With termination resistance

bit 3 For low noise operation OFF: Normal

: INV frequency upper limit restriction

OFF

bit 4 OFF: Normal

: Fan rpm upper limit restriction

OFF

bit 4 Exchange of Outdoor unit No. / Start

order No.

OFF: Outdoor unit No. [U. #] (#: 1 to 3) ON

: Outdoor start order No. [y. #] (#: 1 to 3)

OFF

All bit1 and 2 are ON: Setup of outdoor unit backup

OFF

*1 PMV full open/full close operation by short-circuited CN30/CN31 is for PMV which was selected by setting of SW12.

Heat Recovery Not use

N OFF

Outdoor Interface P.C. board Function Setting

Outdoor Interface P.C board

O : With jumper, X : Without jumper (Cut)

Setup Function switching setup

Jumper

Part typ e Exchang e conten ts

Initial sett ing

at shipment

J01

Optional function Operation mode selection operation switching

Indoor unit at not selected side is kept with waiting status.

J16

Demand control 1 (Standard specification) Corresponds to 2-core wire

Normal (3-core wire <Successive MAKE signal> or 4-core wire <Successive M

AKE or Pulse signal>)

2-core wire <Successive MAKE signal>

Approx. 75% (Normal)

The mode is changed a mode which selected the operation mode of the indoor unit at not selected side.

Approx. 60%

J04

Upper limit setup of demand capacity command in corresponding indoor during saving operation in indoor

*4 When you replace the board with a service board, be sure to cut the jumper wire matching with the outdoor unit model to be installed. (The jumper wires J09 to J12 which were mounted at shipment from the factory are provided to all the boards regardless of model type.)

Switching of Jumper Wire/Function

Cooling, Heat pump type

Leaking/Clogging

Li t of Check Codess Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MAP0806 , 1006 , 1206 )

Note: “XX” represents sub-code

Clogging

Leakage

Part

Locati on of

probl em

(see next p age)

Unit gen erating

check c ode

Detected failure and check code Symp tom

Outdoor PMV1

Corresponding unit Activation of high-pressure protection

Activation of low-pressure protection Discharge temp. trouble (TD1) Discharge temp. trouble (TD2

P20 H06 P03 P17

Rise of pressure Fall of pressure Rise of discharge temp. (compressor 1) Rise of discharge temp. (compressor 2)

Check valve in discharge pipe convergent section

Corresponding unit High-pressure protection trouble

High-pressure SW system trouble

P20 P04-XX

Abnormal rise of pressure

Check valve in discharge pipe C Corresponding unit High-pressure SW system trouble P04-XX Abnormal rise of pressure

Check valve in oil-equalization circuit Capillary Strainer

Corresponding unit Oil level detection circuit trouble

Oil level low de

tection and protection

H16-XX H07

Oil circuit trouble or oil level low

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinudetcennocrehtOEevlavA3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCFevlavB3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinudetcennocrehtOGevlavC3VS

3D valve SV3D valve circuit capillary Strainer

Corresponding unit Oil level low detection and protection H07 Oil

level low

Reducer

Corresponding unit Oil level detection circuit trouble

Oil level low detection and protection

H16-05 H07

Oil circuit trouble Oil level low Oil level low

wol

levelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCJrotubirtsidnruterliO

Oil circuit trouble40-61HOil level detection circuit troubletinugnidnopserroCKyrallipacssapybC3VS

Part

Unit gen erating

check c ode

Detected failure and check code Symp tom

Outdoor PMV1

Corresponding unit Outdoor liquid backflow trouble

Oil level low detection and protection

P13 H07

Refrigerant entrapment

Other connected unit Discharge temp. trouble (TD1)

Discharge temp. trouble (TD2)

P03 P17

Rise of discharge temp. (compressor 1) Rise of discharge temp. (compressor 2)

Check valve in discharge pipe

Bnoitcestnegrevnoc

Corresponding unit Oil level low detection and prote

ction Compressor breakdown Compressor error (lockup)

H07 H01-XX H02-XX

Refrigerant entrapment

Check valve in discharge pipe

Corresponding unit Oil level low detection and protection

Compressor breakdown Compressor trouble (lockup)

H07 H01-XX H02-XX

Refrigerant entrapment

Check valve in oil-equalization circuit

Corresponding unit Oil level low detection and protection H07 Excessive amount of oil

(Leaking side) Insuffi

cient amount of oil

(Normal side)

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCEevlavA3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCGevlavC3VS

Locati on of

probl em

(see next p age)

Leaking/Clogging

<Cooling, Heat pump type>

(TD2)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TO)

(SV3D)

(TL1)

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

(PMV1)

4-way valve

High-pressure sensor

Low-pressure sensor

Oil separator

Fusible

plug

Liquid Tank

Accumulator

Highpressure switch

Check valve

Compressor

(Inverter)

Oil Header

Liquid side

Service valve

Gas side

Service valve

Balance pipe

Service valve

Sub cool heat exchanger

(SV52)

Reducer

Compressor

(Inverter)

Solenoid

valve

Capillary

tube

Check

valve

Check

joint

Strainer

Temperature

sensor

Symbol

Distributor

Reducer

Refrigerant Cycle Circuit

Leaking/Clogging

<MMY-MAP0806 , MAP1006 and MAP1206 >

Check items and procedures to follow when checking oil circuit with compressor(s) disconnected

erudecorPnoitacoLmetikcehC

Leakage of outdoor PMV Leakage of check valve in discharge pipe convergent section

A,C

1) With PMV1 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe. If the pressure at the check joint of discharge pipe increases, there is a leak from PMV1 (A) and check valve of discharge pipe (C). Replace the faulty par ts.

2) If the pressure does not increase, fully open outdoo

r PMV 1 and check the pressure at the check joint of discharge pipe again. If the pressure increases, there is a leak from the check valve of discharge pipe (C). Replace the part.

Leakage of check valve in discharge pipe

3) With pressure applied to the check joint of discharge pipe with nitrogen, if gas escapes from the discharge pipe section of the disconnected compressor, there is a leak from the check valve of discharge pipe (E). Replace the part.

Leakage of check valve in oil e

qualization circuit

4) With pressure applied to the check joint of discharge pipe with nitrogen, if gas escapes from the oil equalization pipe section of the disconnected compressor, there is a leak from the oil equalization pipe check valve (F). Replace the part.

Leakage of SV3A valve G

5) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3B valve. If gas escapes from the suction pipe section of the disconnected compressor, ther

e is a leak from the SV3A valve.

Replace the part.

Leakage of SV3B valve H

6) Then manually open the SV3A valve. If gas escapes from the suction pipe section of the disconnected compressor, there is a leak from the SV3B valve. Replace the part.

Clogging of SV3D valve Clogging of oil-return capillary Clogging of oil-return distributor

7) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3D valve. If gas does not escape from the suction

pipe section of the disconnected compressor, the SV3D valve, oil-return

capillary or oil-return distributor is clogged. Replace the part.

(TD2)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TO)

(SV3D)

(TL1)

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

(PMV1)

4-way valve

High-pressure sensor

Low-pressure sensor

Oil separator

Fusible

plug

Liquid Tank

Accumulator

Highpressure switch

Check

valve

Check

valve

Compressor

(Inverter)

Oil Header

Liquid side

Service valve

Gas side

Service valve

Balance pipe Service valve

Sub cool heat exchanger

(SV52)

Reducer

Compressor

(Inverter)

Reducer

<Cooling, Heat pump type>

Leaking/Clogging

<Cooling, Heat pump type>

List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MAP1406 , 1606 )

Note: “XX” represents sub-code

Clogging

Leakage

Part

Unit gen erating

check c ode

Detected f ailure and ch eck c ode

Symptom

Outdoor PMV1, 3

Corresponding unit

Activation of high-pressure protection Activation of low-pressure protection Discharge temp.

trouble

(TD1)

Discharge temp.

trouble

(TD2)

P20 H06 P03 P17

Rise of pressure Fall of pressure Rise of discharge temp. (compressor 1) Rise of discharge temp. (compressor 2)

Check valve in discharge pipe convergent section

Corresponding unit High-pressure protection

trouble

High-pressure SW system

trouble

P20 P04-XX

Abnormal rise of pressure

Check valve in discharge pipe C Corresponding unit High-pressure SW system

trouble

P04-XX Abnormal rise of pressure

Check valve in oil-equalization circuit Capillary Strainer

Corresponding unit Oil level detection circuit

trouble

Oil level low detection and protection

H16-

H07

Oil circuit

trouble

or oil level

low

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinudetcennocrehtOEevlavA3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCFevlavB3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinudetcennocrehtOGevlavC3VS

3D valve SV3D valve circuit capillary Strainer

Corresponding unit Oil level low detection and protection H07 Oil level low

Reducer

Correspo

nding unit Oil level detection circuit

trouble

Oil level low detection and protection

H16-05 H07

Oil circuit

trouble

Oil level low Oil level low

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCKrotubirtsidnruterliO

Oil circuit

trouble

40-61HOil level detection circuit

trouble

tinugnidnopserroCLyrallipacssapybC3VS

Part

Unit gen erating

check c ode

Detected f ailure and ch eck c ode

Symptom

Outdoor PMV1

Corresponding unit Outdoor liquid backflow

trouble

Oil level low detection and protection

P13 H07

Refrigerant entrapment

Other connected unit Discharge temp.

trouble

(TD1)

Discharge temp.

trouble

(TD2)

P03 P17

Rise of discharge temp. (compressor 1) Rise of discharge temp. (compressor 2)

Check valve in discharge pipe

Bnoitcestnegrevnoc

Corresponding unit Oil level low detection and protection

Compressor breakd

own

Compressor error (lockup)

H07 H01-XX H02-XX

Refrigerant entrapment

Check valve in discharge pipe

Corresponding unit Oil level low detection and protection

Compressor breakdown Compressor

trouble (lockup)

H07 H01-XX H02-XX

Refrigerant entrapment

Check valve in oil-equalization circuit

Corresponding unit Oil level low detection and protection H07 Excessive amount of oil

(Leaking side) Insufficient amount of oil (No

rmal side)

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCEevlavA3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCGevlavC3VS

Locati on of

probl em

(see next page)

Locati on of

probl em

(see next page)

Leaking/Clogging

Outdoor Unit (14, 16HP) Model : MMY-MAP1406

, CMMY-MAP1606

(TD2)

(TS1)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TE2)

(TO)

(TG2)

(TG1)

(TL3)

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve

High-pressure sensor

Low-pressure

sensor

Oil separator

Accumulator

Liquid Tan k

Liquid side

Service valve

Gas side

Service valve

Balance pipe Service valve

Oil Header

Highpressure switch

High-

pressure switch

Reducer

Fusible

plug

Sub cool

heat

exchange

Compressor

(Inverter)

Compressor

(Inverter)

Solenoid

valve

Capillary

tube

Check

valve

Check

joint

Strainer

Temperature

sensor

Symbol

Distributor

<Cooling, Heat pump type>

Leaking/Clogging

<Cooling, Heat pump type>

<MMY-MAP1406 and MAP1606 >

Check items and procedures to follow when checking oil circuit with compressor(s) disconnected

erudecorPnoitacoLmetikcehC

Leakage of outdoor PMV Leakage of check valve in discharge pipe convergent section

A,B

With PMV1 and 3 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe. If the pressure at the check joint of discharge pipe increases, there is a leak PMV1(A) or 3(B) and check valve of dischage pipe (C). Replace the faulty parts.

2) If the pressure does not increase, fully open

outdoor PMV1 and 3 and check the pressure at the check joint of discharge pipe again. If the pressure increases, there is a leak from the check valve of discharge pipe (C). Replace the part.

Leakage of check valve in discharge pipe

With pressure applied to the check joint of discharge pipe with nitrogen, if gas escapes from the discharge pipe section of the disconnected compressor, there is a leak fromthe check valve of discharge pipe (E).Replace the part.

Leakage of check valve in oil equalization circuit

Leakage of SV3A valve G

5) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3B valve. If gas escapes from the suction pipe section of the disconnected compr

essor, there is a leak from the SV3A valve.

Replace the part.

Leakage of SV3B valve H

6) Then manually open the SV3A valve. If gas escapes from the suction pipe section of the disconnected compressor, there is a leak from the SV3B valve. Replace the part.

Clogging of SV3D valve Clogging of oil-return capillary Clogging of oil-return distributor

7) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3D valve. If gas does not escape from

the suction pipe section of the disconnected compressor, the SV3D valve, oil-return

capillary or oil-return distributor is clogged. Replace the part.

(TD2)

(TS1)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TE2)

(TO)

(TG2)

(TG1)

(TL3)

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve

High-pressure sensor

Low-pressure

sensor

Oil separator

Accumulator

Liquid Tank

Liquid side

Service valve

Gas side

Service valve

Balance pipe Service valve

Oil Header

Highpressure switch

High-

pressure switch

Reducer

Fusible

plug

Sub cool

heat

exchange

Compressor

(Inverter)

Compressor

(Inverter)

Leaking/Clogging

List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MAP1406 , 1606 )

Note: “XX” represents sub-code

Clogging

Leakage

Part

Unit gen erating

check c ode

Detected f ailure and ch eck c ode

Symptom

Outdoor PMV1, 3

Corresponding unit

Activation of high-pressure protection Activation of low-pressure protection Discharge temp.

trouble

(TD1)

Discharge temp.

trouble

(TD2)

P20 H06 P03 P17

Rise of pressure Fall of pressure Rise of discharge temp. (compressor 1) Rise of discharge temp. (compressor 2)

Check valve in discharge pipe convergent section

Corresponding unit High-pressure protection

trouble

High-pressure SW system

trouble

P20 P04-XX

Abnormal rise of pressure

Check valve in discharge pipe C Corresponding unit High-pressure SW system

trouble

P04-XX Abnormal rise of pressure

Check valve in oil-equalization circuit Capillary Strainer

Corresponding unit Oil level detection circuit

trouble

Oil level low detection and protection

H16-

H07

Oil circuit

trouble

or oil level

low

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinudetcennocrehtOEevlavA3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCFevlavB3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinudetcennocrehtOGevlavC3VS

3D valve SV3D valve circuit capillary Strainer

Corresponding unit Oil level low detection and protection H07 Oil level low

Reducer

Correspo

nding unit Oil level detection circuit

trouble

Oil level low detection and protection

H16-05 H07

Oil circuit

trouble

Oil level low Oil level low

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCKrotubirtsidnruterliO

Oil circuit

trouble

40-61HOil level detection circuit

trouble

tinugnidnopserroCLyrallipacssapybC3VS

Part

Unit gen erating

check c ode

Detected f ailure and ch eck c ode

Symptom

Outdoor PMV1

Corresponding unit Outdoor liquid backflow

trouble

Oil level low detection and protection

P13 H07

Refrigerant entrapment

Other connected unit Discharge temp.

trouble

(TD1)

Discharge temp.

trouble

(TD2)

P03 P17

Rise of discharge temp. (compressor 1) Rise of discharge temp. (compressor 2)

Check valve in discharge pipe

Bnoitcestnegrevnoc

Corresponding unit Oil level low detection and protection

Compressor breakd

own

Compressor error (lockup)

H07 H01-XX H02-XX

Refrigerant entrapment

Check valve in discharge pipe

Corresponding unit Oil level low detection and protection

Compressor breakdown Compressor

trouble (lockup)

H07 H01-XX H02-XX

Refrigerant entrapment

Check valve in oil-equalization circuit

Corresponding unit Oil level low detection and protection H07 Excessive amount of oil

(Leaking side) Insufficient amount of oil (No

rmal side)

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCEevlavA3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCGevlavC3VS

Locati on of

probl em

(see next page)

Locati on of

probl em

(see next page)

<Cooling, Heat pump type>

Leaking/Clogging

<Cooling, Heat pump type>

Outdoor Unit (14, 16HP) Model : MMY-MAP1406

, CMMY-MAP1606

(TD2)

(TS1)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TE2)

(TO)

(TG2)

(TG1)

(TL3)

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve

High-pressure sensor

Low-pressure

sensor

Oil separator

Accumulator

Liquid Tan k

Liquid side

Service valve

Gas side

Service valve

Balance pipe

Service valve

Oil Header

Highpressure switch

High-

pressure switch

Reducer

Fusible

plug

Sub cool

heat

exchange

Compressor

(Inverter)

Compressor

(Inverter)

Solenoid

valve

Capillary

tube

Check

valve

Check

joint

Strainer

Temperature

sensor

Symbol

Distributor

Leaking/Clogging

<MMY-MAP1406 and MAP1606 >

Check items and procedures to follow when checking oil circuit with compressor(s) disconnected

erudecorPnoitacoLmetikcehC

Leakage of outdoor PMV Leakage of check valve in discharge pipe convergent section

A,B C

2) If the pressure does not increase, fully open

outdoor PMV1 and 3 and check the pressure at the check joint of discharge pipe again. If the pressure increases, there is a leak from the check valve of discharge pipe (C). Replace the part.

Leakage of check valve in discharge pipe

Leakage of check valve in oil equalization circuit

Leakage of SV3A valve G

5) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3B valve. If gas escapes from the suction pipe section of the disconnected compr

essor, there is a leak from the SV3A valve.

Replace the part.

Leakage of SV3B valve H

6) Then manually open the SV3A valve. If gas escapes from the suction pipe section of the disconnected compressor, there is a leak from the SV3B valve. Replace the part.

Clogging of SV3D valve Clogging of oil-return capillary Clogging of oil-return distributor

7) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3D valve. If gas does not escape from

the suction pipe section of the disconnected compressor, the SV3D valve, oil-return

capillary or oil-return distributor is clogged. Replace the part.

(TD2)

(TS1)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TE2)

(TO)

(TG2)

(TG1)

(TL3)

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve

High-pressure sensor

Low-pressure

sensor

Oil separator

Accumulator

Liquid Tank

Liquid side

Service valve

Gas side

Service valve

Balance pipe Service valve

Oil Header

Highpressure switch

High-

pressure switch

Reducer

Fusible

plug

Sub cool

heat

exchange

Compressor

(Inverter)

Compressor

(Inverter)

<Cooling, Heat pump type>

Leaking/Clogging

List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MAP1806 , MAP2006

and MAP2206 )

Note: “XX” represents sub-code

Clogging

Leakage

Part

Unit gen erating

check c ode

Detected f ailure and ch eck c ode Sympto m

Outdoor PMV1, 3

Corresponding unit Activation of high-pressure protection

Activation of low-pressure protection Discharge temp. trouble (TD1) Discharge temp. trouble (TD2)

P20 H06 P03 P17

Rise of pressure Fall of pressure Rise of discharge temp. (compressor 1) Rise of discharge temp. (compressor 2)

Check valve in discharge pipe convergent section

Corres

ponding unit High-pressure protection trouble

High-pressure SW system trouble

P20 P04-XX

Abnormal rise of pressure

Check valve in discharge pipe C Corresponding unit High-pressure SW system trouble P04-XX Abnormal rise of pressure

Check valve in oil-equalization circuit Capillary Strainer

Corresponding unit Oil level detection circuit trouble

Oil level low detection and protection

H16-XX H07

Oil circuit trouble or oil level low

ollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinudetcennocrehtOEevlavA3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCFevlavB3VS

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinudetcennocrehtOGevlavC3VS

3D valve SV3D valve circuit capillary Strainer

Corresponding unit Oil level low detection and protection H07 Oil level low

Reducer

Corresponding unit Oil level detection circuit trouble

Oil level

low detection and prote

H16-05 H07

Oil circuit trouble Oil level low Oil level low

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCKrotubirtsidnruterliO

Oil circuit trouble 40-61HOil level detection circuit trouble tinugnidnopserroCLyrallipacssapybC3VS

Part

Unit gen erating

check c ode

Detected f ailure and ch eck c ode Sympto m

Outdoor PMV1

Corresponding unit Outdoor liquid backflow trouble

Oil level l

ow detection and prote

P13 H07

Refrigerant entrapment

Other connected unit Discharge temp. trouble (TD1)

Discharge temp. trouble (TD2)

P03 P17

Rise of discharge temp. (compressor 1) Rise of discharge temp. (compressor 2)

Check valve in discharge pipe

Bnoitcestnegrevnoc

Corresponding unit Oil level low detection and protection

Compressor breakdown Compressor error (lockup)

H07 H01-XX H02-XX

Refrigerant entrapment

Check valve in discharge pipe

Corr

esponding unit Oil level low detection and protection

Compressor breakdown Compressor

trouble (lockup)

H07 H01-XX H02-XX

Refrigerant entrapment

Check valve in oil-equalization circuit

Corresponding unit Oil level low detection and protection H07 Excessive amount of oil

(Leaking side) Insufficient amount of oil (Normal side)

wollevelliO70HnoitcetorpdnanoitcetedwollevelliOtinugnidnopserroCEevlavA3VS

wollevelliO70Hnoitcetorpdnanoitcetedwollev

elliOtinugnidnopserroCGevlavC3VS

Locati on of

probl em

(see next page)

Location of

probl em

(see next page)

<Cooling, Heat pump type>

Leaking/Clogging

Outdoor Unit (18, 20, 22HP) Model : MMY-MAP1806 , MMY-MAP2006 , MMY-MAP2206

(TD2)

(TS1)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TE2)

(TO)

(TG2)

(TG1)

(TL3)

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve

High-pressure

sensor

Low-pressure

sensor

Oil separator

Accumulator

Liquid Tank

Oil Header

Highpressure switch

High-

pressure

switch

Sub cool heat exchanger

Fusible plug

Liquid side

Service valve

Gas side

Service valve

Balance pipe

Service valve

Solenoid

valve

Capillary

tube

Check

valve

Check

joint

Strainer

Temperature

sensor

Symbol

Distributor

Reducer

Compressor

(Inverter)

Compressor

(Inverter)

<Cooling, Heat pump type>

Leaking/Clogging

<Cooling, Heat pump type>

<MMY-MAP1806 , MAP2006 and MAP2206 >

Check items and procedures to follow when checking oil circuit with compressor(s) disconnected

erudecorPnoitacoLmetikcehC

Leakage of outdoor PMV Leakage of check valve in discharge pipe convergent section

A,B

1) With PMV1 and 3 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe. If the pressure at the check joint of discharge pipe increases, there is a leak from PMV1(A) or 3(B) and check valve of discharge pipe (C). Replace the faulty parts.

2) If the pressure does not increase, fully

open outdoor PMV1 and 3 and check the pressure at the check joint of discharge pipe again. If the pressure increases, there is a leak from the check valve of discharge pipe (C). Replace the part.

Leakage of check valve in discharge pipe

Leakage of ch

eck valve in oil

equalization circuit

Leakage of SV3A valve G

5) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3B valve. If gas escapes from the suction pipe section of the disconnected c

ompressor, there is a leak from the SV3A valve.

Replace the part.

Leakage of SV3B valve H

6) Then manually open the SV3A valve. If gas escapes from the suction pipe section of the disconnected compressor, there is a leak from the SV3B valve. Replace the part.

Clogging of SV3D valve Clogging of oil-return capillary Clogging of oil-return distributor

7) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3D valve. If gas does not escape

from the suction pipe section of the disconnected compressor, the SV3D valve, oil-return

capillary or oil-return distributor is clogged. Replace the par t.

(TD2)

(TS1)

(TE1)

(TK2)

(TK1)

(TD1)

(TK4)

(TE2)

(TO)

(TG2)

(TG1)

(TL3)

(

TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D

)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan

Fan motor

Right side

Main heat exchanger

Left side

Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve

High-pressure

sensor

Low-pressure

sensor

Oil separator

Accumulator

Liquid Tank

Oil Header

Highpressure switch

High-

pressure

switch

Sub cool heat exchanger

Fusible plug

Liquid side

Service valve

Gas side

Service valve

Balance pipe Service valve

Reducer

Compressor

(Inverter)

Compressor

(Inverter)

Backup Operation

This product offers backup modes of operation to tide over certain emergency situations. If a failure occurs in one of the compressors, it is possible to operate the system on an emergency basis by operating only the remaining compressor, (compressor backup operation). If one of the outdoor units fails in a combined outdoor unit system, the system can be operated on an emergency basis by keeping only the remaining outdoor unit(s), (outdoor unit backup operation). Perform backup operation setting in accordance with the procedure described below.

Note for Backup Operation

The method of backup operation differs according to the contents of fault as shown in the table below.

ukcabfodohteMtluaffostnetno erudecorp gnitteS noitarepo pC

Go to SVM-15067-4, 9-2

Go to SVM-15067-4, 9-3, 9-4

)2etoNees(pukcabrosserpmoC)1etoNees(sliaftinuemasehtnisrosserpmocehtfoenO

-gniloocropukcabtinuroodtuOliaftinuemasehtnisrosserpmocehtllA season outdoor unit backup (see Notes 1, 3, 4 and 5)

A fault occurs in a compressor motor coil (e.g. a layer short-circ uit)

A fault occurs in a refrigerating cycle

part, fan or related part, or electrical part

A fault occurs in a temperature sensor or pressure sensor

Failure

Prohibited

Example

Backed-up compressor

Prohibited

Example

Backed-up outdoor unit

Prohibited

Example

Backed-up outdoor unit

Backed-up compressor

Prohibited

Example

Backed-up outdoor unit

MMY-MAP1806 (MMY-MAP2006)

MMY-MAP1606

Prohibited

Example

Backed-up outdoor unit

MMY-MAP1406

MMY-MAP1206

Note 1: If the compressor has failed due to a fault in its motor coil (e.g. a layer short-circuit), do not perform com-

pressor backup operation because of severe oil degradation. It could damage other outdoor units.

Note 2: Keep the number of backed-up outdoor units under compressor backup operation to one in the system

(single refrigerant line). As for MMY-MAP1806 , MMY-MAP2006 and MMY-MAP2206 , the ba

ckup opera-

tion of compressor cannot be done.

Note 3: Keep the number of backed-up outdoor units under outdoor unit backup operation to one in the system

(single refrigerant line).

Note 4: It is prohibited to combine compressor backup operation and outdoor unit backup operation.

Note 5: With a two-outdoor unit system, do not perform outdoor unit backup operation to back up the MMY-

MAP1406 (or MAP1606 ). It

could lead to compressor failure due to the abnormal operation.



Failure Failure

Failure

Backup Operation

Compressor Backup Operation Setting

If a fault occurs to one of the compressors installed in outdoor unit, follow the procedure described below to back up the faulty compressor by using the remaining, normal compressor.

(1) Turn off the power supply to all the outdoor units connected to the system. (2) Set the DIP switches of SW06, provided on the interface P.C. board of the outdoor unit with the faulty

compressor, as shown in the table below.

SW06

Bit 1 Bit 2 Bit 3 Bit 4

When compressor No.1 (front left) is faulty ON OFF OFF OFF

When compressor No.2 (front right) is faulty OFF ON OFF OFF

Factory default setting OFF OFF OFF OFF

123 4 123 4 123 4 123 4

SW06 SW07 SW09 SW10

SW11 SW12

123 4 123 4

SW16 SW17

SW13 SW14

Backup Operation

(3) Change the connection of wiring between Comp-IPDU and Fan-IPDU, as shown in the below.

Outdoor Unit (8, 10, 12, 14, 16, 18HP)

Model: MMY-MAP0806 , MAP1006 , MAP1206 , MAP1406 , MAP1606 ,

1.When compressor No.1 (front left) is faulty：No change the connection of wiring

2.When compressor No.2 (front right) is faulty：

Change the connection of wiring between Como-IPDU and Fan-IPDU as shown in the below.

CN21

CN23

CN21

CN23

CN21

CN23

CN21

CN23

Change the connection of wiring which is connected to the CN21, 23 of Comp-IPDU2

・Change to CN21 of Comp-IPDU1 from CN21 of Comp-IPDU2 ・Change to CN23 of Comp-IPDU2 from CN23 of Comp-IPDU2

Change the connection of wiring which is connected to the CN21, 23 of Comp-IPDU2

・Change to CN21 of Comp-IPDU1 from CN21 of Comp-IPDU2 ・Change to CN23 of Comp-IPDU2 from CN23 of Comp-IPDU2

Ex. MMY-MAP0806*, MAP1006*, MAP1206* , MAP14B6*

Ex. MMY- MAP1406 , MAP1606 , MAP18B6

Backup Operation

Outdoor Unit (18, 20, 22HP)

Model: MMY-MAP 1806 , MAP2006 , MAP2206

1.When compressor No.1 (front left) is faulty：

Change the connection of wiring between Comp-IPDU and Fan-IPDU as shown in the below.

2.When compressor No.2 (front right) is faulty：

Change the connection of wiring between Comp-IPDU and Fan-IPDU as shown in the below.

CN22

CN23

CN21

CN23

Change the connection of wiring which is connected to the CN21, 23 of Comp-IPDU1

・Change to CN22 of Comp-IPDU2 from CN21 of Comp-IPDU1 ・Change to CN23 of Comp-IPDU2 from CN23 of Comp-IPDU1

(Tighten two wirings together with screw terminal)

Change the connection of wiring which is connected to the CN21, 23 of Comp-IPDU2

・Change to CN22 of Comp-IPDU1 from CN21 of Comp-IPDU2 ・Change to CN23 of Comp-IPDU1 from CN23 of Comp-IPDU2

(Tighten two wirings together with screw terminal)

CN22

CN23

CN21

CN23

(4) Turn on the power supply to all the units connected to the system.

This is the end of compressor backup operation setting.

Backup Operation

This product allows outdoor unit backup operation setting to be performed either at the header unit or a follower unit. If any of the fault modes specified below occurs to one of the outdoor units in a multi-outdoor unit system, proceed with outdoor unit backup operation.

• A compressor failure (e.g. a layer short-circuit or a compressor failure in which no compressor is available to back up the faulty compressor)

•

A failure of a pressure sensor (Pd or Ps) or a temperature sensor (

Note: Keep the number of backed-up outdoor units to one in the system (single refrigerant line).

(1) Turn off the power supply to all the indoor and outdoor units connected to the system. [Setup of failed follower outdoor unit] (2) Fully close the gas pipe service valve of the failed outdoor unit. (3) Leave the service valves of the liquid and balance pipe fully open (to prevent refrigerant stagnation in the unit).

However, if there is a leakage from an outdoor PMV (unable to close), fully close the liquid pipe service valve.

(4) <In case of fault in compressor, electrical part, I/F P.C. board, or IPDU P.C. board>

From this point on, keep the power supply to the failed unit off. <In case of fault in refrigerating circuit or related part (pressure sensor, temperature sensor, refrigerating cycle part, or fan system part)> Disconnect the connector [CN03] for outdoor-outdoor communication (BUS2) provided on the interface P.C

board.

[Setup of header unit] (5) Turn on Bit 2 of SW09 on the interface P.C. board of the header unit.

(Setting to prevent connected indoor units capacity over error. (E16))

Setup of failed follower outdoor unit

(4)

CN03

BUS2

In case of fault in refrigerating circuit or related part, disconnect BUS2 communication connector [CN03] on interface P.C. board.

123 4 123 4 123 4 123 4

SW06 SW07 SW09 SW10

SW11 SW12

123 4 123 4

SW16 SW17

SW13 SW14

Interface P.C. board of header unit

(5)

Turn on Bit 2 of SW09.

Outdoor Unit Backup Operation Setting

Follower outdoor unit backup operation setting (failure of follower outdoor unit)

(2)

Fully close gas pipe service valve.

(3)

Leave service valves of liquid and balance pipes fully open. (if there is leakage from outdoor PMV, fully close liquid pipe.)

Backup Operation

(6) Turn on the power supply to all the units connected to the system other than the failed follower unit.

Determine what to do with the power supply to the failed follower unit in the following manner. <In case of fault in compressor, electrical part, I/F P.C. board, or IPDU P.C. board> Leave the power supply off. <In case of fault in refrigerating circuit or related part (pressure sensor, temperature sensor, refrigerating cycle part, or fan system part)> Turn on the power supply to protect the compressor (by turning on the case heater). (When the power supply to the unit is turned on, [E19] (error in the number of outdoor header units) will be displayed on the 7-segment display. However, this will not cause any problems.)

(7) Perform settings needed to gain permission for backup operation from the header unit (error clearance).

1) Set SW01/02/03 on the interface P.C. board to 1/1/1 and confirm that [U1] [E26] (dropping out of an outdoor unit) is displayed on the 7-segment display.

2) Set SW01/02/03 on the interface P.C. board to 2/16/1. Upon co

nfirming that [Er] [… … …] is displayed on

the 7-segment display, press SW04 and hold for 5 seconds or more.

3) [Er] [… CL] (error clearance completed) will be displayed on the 7-segment display.

4) Set SW01/02/03 back to 1/1/1. (The display should change to [U1] [– – –].)

This is the end of follower outdoor unit backup operation setting. Check the operation.

Push switch

7-segment display

Rotary switches

Interface P.C. board of header unit

(7) Set SW01/02/03 to 1/1/1 [U1] [E26] will be displayed.

Set SW01/02/03 to [2/16/1]. [Er] [… … …] will be displayed.

Press SW04 and hold for 5 seconds or more [Er] [… CL] will be displayed.

Set SW01/02/03 back to 1/1/1. [U1] [– – –] will be displayed.

Backup Operation

Header outdoor unit backup operation setting

(failure of header outdoor unit)

(1) Turn off the power supply to all the units connected to the system at the source. [Setup of failed header outdoor unit] (2) Fully close the gas pipe service valve of the failed outdoor unit. (3) Leave the service valves of the liquid and balance pipes fully open (to prevent refrigerant stagnation in the failed

outdoor unit). However, if there is a leakage from an outdoor PMV (unable to close), fully close the liquid pipe service valve.

(4) <In case of fault in compressor, electrical part, I/F P.C. board, or IPDU P.C. board>

[Selection

of new header unit]

(5) Select a new header unit from the follower units on the basis of the following criteria:

• If only one follower unit is connected, select it as the header unit.

•

If two follower units are connected, select the follower unit that is nearest to the failed header unit.

[Setup of new header unit] (6) Set SW13 and SW14 on the interface P.C. board same as the setting of failed header unit (refrigerant line

address setting).

(7) Turn on Bit 2 of SW09 on the interface P.C. board. (Setting to prevent connected indoor unit capacity over error.

(E16))

Setup of failed follower outdoor unit

(4)

CN03

BUS2

In case of fault in refrigerating circuit or related part, disconnect BUS2 communication connector [CN03] on interface P.C. board.

(2)

Fully close gas pipe service valve.

(3)

Leave service valves of liquid and balance pipes fully open. (if there is leakage from outdoor PMV, fully close liquid pipe.)

Backup Operation

(8) Set Bits 1 and 2 SW30 on the interface P.C. board same as that of the failed header unit (terminator

resistance setting)

[Wiring changes to communication line] (9) Redirect the indoor-outdoor communication line connected to the failed header unit [U1/U2] to the unit selected

as the header unit [U1/U2].

(10) If a cental control device is connected, connect the central control communication line [U3/U4] to the

communication line terminal of the unit selected as the new header unit [U3/U4], and connect up the tie connector between the [U1/U2} and [U3/U4] terminal.

(11) Turn on the power supply to all the units connected to the system other than the failed unit.

Determine what to do with the power supply to the failed unit in the following manner. <In case of fault in compressor, electrical part, I/F P.C. board, or IPDU P.C. board> Leave the power supply off. <In case of fault in refrigerating circuit or related part (pressure sensor, temperature sensor, refrigerating cycle part, or fan system part)>

Turn on the power supply to protect the compressor (by turning on the case heater). (When the power supply to the unit is turned on, [E19] (error in the number of outdoor header units) will be displayed on the 7-segment display. However, this will not cause any problems.

This is the end of header outdoor unit backup operation setting. Check the operation.

123 4 123 4 123 4 123 4

123 4 123 4

SW06 SW07 SW09 SW10

SW11 SW12

1 2 3 4 123 4

SW16 SW17

SW13 SW14

(6)

Outdoor interface P.C. board of unit selected as new header unit

(7)

Turn on Bit 2 of SW09.

Set SW13 and SW14 identically to failed header unit.

(10)

Failed header unit

Outdoor-outdoor communication line (U5/U6)

(9) Redirect the indoor-outdoor communication line from failed header unit to unit selected as header unit [U1/U2].

If central control device is connected, redirect central control communication line from failed header unit to unit selected as new header unit [U3/U4].

Unit selected as new header unit (previously follower unit No. 1)

Central control communication line (U3/U4 terminal)

Indoor-outdoor communication line (U1/U2 terminal)

Follower unit No. 2

(8)

Set Bits 1 and 2 of SW30 identically to failed header unit.

Backup Operation

Cooling-Season Outdoor Unit Backup Operation Setting

Limited to summer and other situations where there is no need for heating operation, this function makes it possible to get backup operation up and running quickly without going through the normal setup procedure, regardless of which type of outdoor unit has failed, the header unit or a follower unit. In this backup operation, the system behaves in exactly the same way as described in the “Outdoor Unit Backup Operation Setting” section, except that it cannot perform heating operation. Note 1: When the system is set up for this function, heating operation is not available.

( )

Note 2: If the unit failure has been caused by a fault in the interface P.C. board or electric circuit, this function is

not available. In that case, follow the procedure specified in the “Outdoor Unit Backup Operation Setting” section.

(1) Turn off the power supply to all the units connected to the system. [Setup of failed outdoor unit] Regardless of whether the failed outdoor unit is the header unit or a follower unit, there is no difference in the setup procedure. (2) Turn on Bits 1 and 2 of SW06 provided on the interface P.C. board. (3) If there is a leakage from an outdoor PMV (unable to close), fully close the liquid pipe service valve. (4) Turn on the power supply to all the units connected

to the system.

If the fault involves poor insulation of a compressor motor, remove the compressor leads before the power is turned on.

This is the end of cooling-season outdoor unit backup operation setting.

123 4 123 4 123 4 123 4

SW06 SW07 SW09 SW10

SW11 SW12

123 4 123 4

SW16 SW17

SW13 SW14

Turn on Bits 1 and 2 of SW06.

NFC (Comminication)

SMMS WAVE TOOL FOR SMARTPHONE

The NFC TAG DEVICE of the Outdoor unit communicates with SMARTPHONE that simplifies the install, the test operation and the maintenance of the SMMS-e. *NFC (Near Field Communication)

As for the details, refer to the Operation Manual of “SMMS WAVE TOOL FOR SMARTPHONE”

• You can download the Application and the Operating Manual from the below URL or QR code.

Prohibition/Permission of the NFC Setting

• This Application enables the functions of the auto-address setup and the test operation of the outdoor unit with Smartphone within 48 hours from the power input to the outdoor unit.

• You should decide whether to make use of the functions of the auto-address setup and test operation at its own responsibility and also be sure to confirm notices in the Operating

Manual before performing the test operation.

• If you want to disable the functions of the auto-address setup and the test operation, perform the following operations.

Switch setting of some functions prohibition

How to set the NFC operation all time prohibition Follow the below procedure.

QR code

URL http://www.toshiba-carrier.co.jp/global/appli/smms_wave_tool/

NFC TAG DEVICE

SMART PHONE

Push switch 7-segment display

SW01 SW02 SW03 SW04 [ A ] [ B ]

(1) 2 1 14 - [ nF] [ c.00 ]

(Default setting) After the power input, :below 48 hours [NFC operation permit] :more than 48 hours [NFC operation prohibit]

(2) 2 1 14

Press for more than 5 secs

[ nF] [ c.01 ]

NFC operation all time prohibition

(3) 1 1 1 - [ U.1. ] [ - - - ] Return the switch

Step

Rotaly switch

NFC operation

setting

NFC (Comminication)

How to set the NFC operation all time permission Follow the below procedure.

Push switch 7-segment display

SW01 SW02 SW03 SW04 [ A ] [ B ]

2 1 14 - [ nF] [ c.00 ]

(Default setting) After the power input, :below 48 hours [NFC operation permit] :more than 48 hours [NFC operation prohibit]

2 1 14 (Press 5 secs) [ nF] [ c.01 ]

NFC operation all time prohibition

(2) 2 1 14

Press for more

than 10 secs

[ nF] [ c.02 ]

NFC operation all time permission

(3) 1 1 1 - [ U.1. ] [ - - - ] Return the switch

(1)

Step

Rotaly switch

NFC operation

setting

Push switch 7-segment display

SW01 SW02 SW03 SW04 [ A ] [ B ]

[ nF] [ c.Er ] Abnormal [ nF] [ c.00 ] Normal

(2) 1 1 1 - [ U.1. ] [ - - - ] Return the switch

Step

Rotaly switch

NFC-I/F board

communication

(1) 2 16 14 -

* Do it again if the 7-segment display is different from the above. * The functions other than the auto-address setup and test operation of this Application can work normally even if

the functions of the auto-address setup and the test operation are disabled.

Confirmation for the generation of the trouble of the NFC

When you can not read out the information of the NFC Tag Device with your Smartphone, perform the following operations after restarting the power supply of the outdoor unit.

If there is no problem, refer to the Operation Manual of “SMMS WAVE TOOL FOR SMARTPHONE”.

Trademark Android is a trademark or registered trademark of Google Inc. QR code is a trademark or registered trademark of DENSO WAVE Inc.

Troubleshooting

P.C. board or other indoor error

Troubleshooting Method

The remote controllers (main remote controller and central control remote controller) and the interface P.C. board of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the

site/ part may be

identified in the event of a

by following the method described below.

The list below summarizes check codes detected by various devices. Analyze the check code according to where it is displayed and work out the nature of the

in consultation with the list.

• When investigating a on the basis of a display provided on the indoor remote controller or TCC-LINK central control remote controller - See the “TCC-LINK remote control or main remote controller display” section of the list.

•

When investigating a on the basis of a display provided on an outdoor unit - See the “Outdoor 7-segment display” section of the list.

• When investigating a on the basis of a wireless remote controller-controlled indoor unit - See the “Light sensor indicator light block” section of the list.

List of Check Codes (Indoor Unit)

( detected by indoor unit)

Check code

Display of receiving unit

Typical problem site Description of Check code

Outdoor 7-segment display Indicator light block

Sub-code

Flash

E03

Indoor-remote controller periodic communication error

Communication from remote controller or network adaptor has been lost (so has central control communication).

E04

– –

Indoor-outdoor periodic communication error

Signals are not being received from outdoor unit.

E08 E08

E10

Indoor inter-MCU communication error

Duplicated indoor address Duplicated indoor address Indoor unit detects address identical to its own.

MCU communication between main controller and motor microcontroller is faulty.

E18

F01

F02

F03

F10

F11

Error in periodic communication between indoor header and follower unit

Periodic communication between indoor header and follower units cannot be maintained.

––

Indoor heat exchanger temperature

sensor (TCJ) error

Heat exchanger temperature sensor (TCJ) has been open/short-circuited.

––

Indoor heat exchanger temperature sensor (TC2) error

Heat exchanger temperature sensor (TC2) has been open/short-circuited.

––

Indoor heat exchanger temperature sensor (TC1) error

Heat exchanger temperature sensor (TC1) has been open/short-circuited.

––

temperature sensor

(TA

) error

temperature sensor (TA) has been

open/short-circuited.

––

Discharge temperature sensor (TF

) error

Discharge

temperature sensor (TF) has been

open/short-circuited.

––

Duplicated indoor group header unit

There is more than one header unit in group.

––

Connection of group control cable to stand-alone indoor unit

There is at least one stand-alone indoor unit to which group control cable is connected.

–

Indoor group address not set

Address setting has not been performed for one or more indoor units (also detected at outdoor unit end).

––

Indoor capacity not set

Capacity setting has not been performed for indoor unit.

––

Duplicated central control address

There is duplication in central control address setting.

L30

Detected indoor unit No.

SIM

Indoor external error input (interlock)

Unit shutdown has been caused by external error input (CN80).

––

Indoor AC fan error

Indoor AC fan error is detec

ted (activation of fan

motor thermal relay).

P10

P01

P12

P13

– –

L30

P10

Detected indoor unit No.

ALT

Indoor overflow error Float switch has been activated.

––

Indoor DC fan error

Indoor DC fan error (e.g. overcurrent or lock-up) is detected.

––

Other indoor unit error

Follower unit cannot be operated due to header unit alarm (E03/L03/L07/L08).

IPDU: Intelligent Power Drive Unit (Inverter P.C. board)

: Lighting, : Flashing, : Goes off ALT.: Flashing is alternately when there are two flashing LED SIM: Simultaneous flashing when there are two flashing LED

Operation

Timer Read

TCC-LINK central

control or main

remote controller

display

ALT

Discharge temperature sensor (TF) has been open/short-circuited.

––F17

––F1

F29

L03

L07

L08 L08

L09

L20

Troubleshooting

(Check code detected bymain remote controller)

(Check code detected bycentral control device)

Note: The same error, e.g. a communication error, may result in the display of different check codes depending on the device that detects it.

Moreover, check codes detected by the main remote controller/central control device do not necessarily have a direct impact on air conditioner operation.

Check code

Display of receiving unit

Typical problem site Description of problem

Main remote

controller

Outdoor 7-segment display Indicator light block

Sub-code

Flash

E01 – –

No master remote controller, faulty remote controller communication (reception)

Signals cannot be received from indoor unit; master remote controller has not been set (including two remote controller control).

E02 – –

Faulty remote controller communication (transmission)

ignals cannot be transmitted to indoor unit.

E09 – –

Duplicated master remote controller

Both remote controllers have been set as master remote controller in two remote controller control (alarm and shutdown for header unit and continued operation for follower unit)

Check code

Display of receiving unit

Typical problem site Description of problem

TCC-LINK central

control

Outdoor 7-segment display Indicator light block

Sub-code

Flash

C05 – –

No indication (when main remote controller also in use)

Faulty central control communication (transmission)

Central control device is unable to transmit signal due to duplication of central control device.

C06 – –

Faulty central control communication (reception)

Central control device is unable to receive signal.

–––

Multiple network adapters are connected to remote controller communication line.

–––2 1 C

Blanket alarm for generalpurpose device control interface

Device connected to general-purpose device control interface for TCC-LINK is faulty.

P30 – –

As per alarm unit (see above)

Group control follower unit

Multiple network adapters

error

Group follower unit is faulty (unit No. and above detail [

] displayed on main remote

controller)

Operation

Timer Read

Operation

Timer Read

Troubleshooting

List of Check Codes (Outdoor Unit)

( detected by SMMS- outdoor interface - typical examples)

Check code

Display of receiving unit

Typical problem site Description of problem

Outdoor 7-segment display

TCC-LINK

central control

or main remote

controller

display

Indicator light block

Sub-code

Flash

E06

Number of indoor units from which signal is received normally

of indoor unit

Indoor unit initially communicating normally fails to return signal (reduction in number of indoor units connected).

E07 – (E04)

E06

Indoor-outdoor communication circuit error

Signal cannot be transmitted to indoor units (

indoor units left without communication from

outdoor unit).

E08 Duplicated indoor address

(E08)

Duplicated indoor address

More than one indoor unit

assigned same

address (also detected at indoor unit end).

E12

01: Indoor-outdoor communication 02: Outdoor-outdoor communication

E12

Automatic address starting error

• Indoor automatic address setting is started while automatic address setting for equipment in other refrigerant line is in progress.

• Outdoor automatic address setting is started while automatic address setting for indoor units is in progress.

E15 – E15

Indoor unit not found during automatic address setting

Indoor unit fails to communi

cate while automatic

address setting for indoor units is in progress.

E16

00: Overloading 01: Number of units connected

E16

Too many indoor units connected/overloading

E19

00: No header unit 02: Two or more header units

E19

Error in number of outdoor header units

There is no or more than one outdoor header unit in one refrigerant line.

E20

01: Connection of outdoor unit from other refrigerant line 02: Connection of indoor unit from other refrigerant line

E20

Connection to other refrigerant line found during automatic address setting

Indoor unit from other refrigerant line is detected while indoor automatic address

setting is in

progress.

E23 – E23

Outdoor-outdoor communication transmission error

Signal cannot be transmitted to other outdoor units.

E25 – E25

Duplicated follower outdoor address

There is duplication in outdoor addresses set manually.

E26

Address of outdoor unit from which signal is not received normally

E26

E28

of outdoor unit

Follower outdoor unit initially communicating normally fails to do so (reduction in number of follower outdoor units connected).

utdoor header unit detects fault relating to follower outdoor unit (detail displayed on follower outdoor unit).

Outdoor follower unit error

1 3 E

There is no communication between IPDUs (P.C. boards) in inverter box.

–

Outdoor discharge temperature sensor (TD1) error

Outdoor discharge temperature sensor (TD1) has been open/short-circuit

ed.

F05

F04

–

F05

F04

E31

F06

F07

F08

ALT

Outdoor discharge temperature sensor (TD2) error

Outdoor discharge temperature sensor (TD2) has been open/short-circuited.

F06

F07

F08

01: TE1 02: TE2

Outdoor heat exchanger

temperature

sensor (TE1, TE2) error

Outdoor heat exchanger

temperature sensors (TE1, TE2) have been open/shortcircuited.

–

Outdoor liquid temperature sensor (TL1

) error

Outdoor liquid temperature sensor (TL

)

has been open/short-circuited.

–

Outdoor outside air temperature sensor (TO) error

Outdoor outside air temperature sensor (TO) has been open/short-circuited.

Outdoor heat exchanger gas side temperature sensor (TG1, TG2) error

Outdoor heat exchanger gas side temperature sensors (TG1, TG2) have been open/shortcircuited.

IPDU: Intelligent Power Drive Unit (Inverter P.C. board)

: Lighting, : Flashing, : Goes off ALT.: Flashing is alternately when there are two flashing LED SIM: Simultaneous flashing when there are two flashing LED

Operation

Timer Ready

Circle (O): Faulty IPDU

01: T 1 02: T

03: T

F09

01: T

02: T

IPDU communication error

1 2 1 2 1 2 1 2 01 ○ 10 ○ 02 ○ 11 ○ ○ 03 ○ ○ 12 ○ ○

08 ○ 13 ○ ○ ○

09 ○ ○ 18 ○ ○ 0A ○ ○ 19 ○ ○ ○ 0B ○ ○ ○ 1A ○ ○ ○

1B ○ ○ ○ ○

A3-IPDU A3-IPDU Fan-IPDUFan-IPDU

Troubleshooting

–

Outdoor pressure sensor (Pd, Ps) wiring error

Wiring error in outdoor pressure sensors (Pd, Ps) has been detected.

–

Low pressure sensor (Ps) error

Output voltage of low pressure sensor (Ps) is zero.

–

High pressure sensor (Pd) error

Outdoor EEPROM error

Output voltage of high pressure sensor (Pd) is zero or provides abnormal readings when compressors have been turned off.

–

Outd

oor EEPROM is faulty (alarm and shutdown

for header unit and continued operation for followe

unit)

H05

F12

F15

F16

F23

F24

F31

– H05

F31

F24

F23

F16

F15

F12

Outdoor discharge temperature sensor (TD1) wiring error

Wiring/installation error or detachment of outdoor discharge temperature sensor (TD1) has been detected.

H06 – H06

H07

Activation of low-pressure protection

Low oil level protection

Low pressure (Ps) sensor detects abnormally low operating pressure.

–

Temperature sensor for oil level detection (TK1,TK2,TK4,TK5) detects abnormally low oil level.

H08

H07

01: TK1 sensor error 02: TK2 sen

sor error 04: TK4 sensor error 05: TK5 sensor error

H08

Error in temperature sensor for oil level detection (TK1

T )

Temperature sensor for oil level detection (TK1

) has been open/short-

circuited.

H15 – H15

Outdoor discharge temperature sensor (TD2) wiring error

Wiring/installation error or detachment of outdoor discharge temperature sensor (TD2) has been detected.

H16

01: TK1 oil circuit error 02: TK2 oil circuit error 04: TK4 oil circuit error 05: TK5 oil circuit error

H16

Oil level detection circuit error

No temperature change is detected by temperature sensor for oil level detection (TK1

) despite compressor having

been started.

–

Dup

licated outdoor

refrigerant line address

Identical refrigerant line address has been assigned to outdoor units belonging to different refrigerant piping systems.

L06

L04 L04

L05

L06

(L08)

L10L10

L08

L17L17

L28L28

Number of priority indoor units (check code L05 or L06 depending on individual unit)

Duplicated priority indoor unit (as displayed on priority indoor unit)

More than one indoor unit have been set up as priority indoor unit.

Duplicated priority indoor unit

(as displayed on indoor unit other than priority indoor unit)

More than one indoor unit

been set up

as priority indoor unit.

–

Indoor group address not set

Outdoor capacity net set

Address setting

not been performed for one

or more indoor units (also detected at indoor end).

–

Outdoor unit capacity has not been set (after P.C. board replacement).

–

Outd

oor model

incompatibility error

Old model outdoor unit (prior to 6 series) has been connected.

–

Too many outdoor units connected

More than

outdoor units have been

connected.

Check code

Display of receiving unit

Typical problem site Description of problem

Outdoor 7-segment display

TCC-LINK

central control

or main remote

controller

display

Indicator light block

Sub-code

Flash

Operation

Timer Read

01: T 1 03: T

SIM

ALT

SIM

L23–L23

Troubleshooting

MG-CTT: Magnet contactor

There are insufficient number of IPDUs (P.C. boards) in inverter box.

Indoor external error input (interlock)

Indoor unit has been shut down for external error input in one refrigerant line (detected by indoor unit).

–

Outdoor discharge (TD1) temperature error

Outdoor discharge temperature sensor (TD1) has detected abnormally high temperature.

P05

00: Open phase detected

Detected indoor unit No.

Open phase/power failure

Open phase is detected when power is turned on. Inverter DC voltage is too high (overvoltage) or too low (undervoltage).

01: Compressor 1 02: Compre

ssor 2

Inverter DC voltage (Vdc) error MG-CTT error

P07

01: Compressor 1 02: Compressor 2

Indoor unit No. detected

Heat sink overheating error

Temperature sensor built into

(TH) detects

overheating.

Indoor unit has been shutdown in one refrigerant line due to detection of overflow (detected by indoor unit).

–

Outdoor liquid backflow detection error

State of refrigerant cycle circuit indicates liquid backflow operation.

P15

P13

P10 (P10)

P07

P05

P03 P03

L30

L29

L29 SIM

SIM

ALT

ALT Gas leak detection

Indoor unit overflow

ALT

Error in number of IPDUs

(L30)

P17

P19

P20

01: TS condition 02: TD condition

Outdoor suction temperature sensor (TS1) detects sustained and repeated high temperatures that exceed standard value.

–

Outdoor disc

harge (TD2)

temperature error

Outdoor discharge temperature sensor (TD2) detects abnormally high temperature.

4-way valve reversing error

Abnormality in

refrigerating cycle is detected

during heating operation.

–

Activation of high-pressure protection

High pressure (Pd) sensor detects high pressure that exceeds standard value.

Check code

Display of receiving unit

Typical problem site Description of problem

Outdoor 7-segment display

TCC-LINK

central control

or main remote

controller

isplay

Indicator light block

Sub-code

Flash

Operation

Timer Ready

Circle (O): Faulty IPDU

1 2 1 2 1 2 1 2 01 ○ 10 ○ 02 ○ 11 ○ ○ 03 ○ ○ 12 ○ ○ 08 ○ 13 ○ ○ ○ 09 ○ ○ 18 ○ ○ 0A ○ ○ 19 ○ ○ ○ 0B ○ ○ ○ 1A ○ ○ ○

1B ○ ○ ○ ○

A3-IPDU A3-IPDU Fan-IPDUFan-IPDU

Troubleshooting

( detected by IPDU featuring in SMMS- standard outdoor unit - typical examples)

Note: The above check codes are examples only, and different check codes may be displayed depending on the outdoor unit configuration

Check code

Display of receiving unit

Typical problem site Description of proplem

Outdoor 7-segment display

TCC-LINK

central control

or main remote

controller

display

Indicator light block

Sub-code

Flash

F13

01: Compressor 1 02: Compressor 2

Error in temperature sensor built into indoor

(TH)

Temperature sensor built into indoor

(TH)

has been open/short-circuited.

H01

01: Compressor 1 02: Compressor 2

Inverter current (Idc) detection circuit detects overcurrent.

H02

01: Compressor 1 02: Compressor 2

H02

H01

F13

Compressor error (lockup) Compressor lockup is detected

H03

01: Compressor 1 02: Compressor 2

H03

P04

P07

P22

P26

P29

Current detection circuit error

Compressor breakdown

Abnormal current is detected while inverter compressor is turned off.

P04

01: Compressor 1 02: Compressor 2

Activation of high-pressure SW

High-pressure SW is activated.

P07

01: Compressor 1 02: Compressor 2

Heat sink overheating error

Temperature sensor built into

(TH) detects

overheating

P22

P26

01: Compressor 1 02: Compressor 2

Activation of short-circuit protection

Short-circuit protection for compressor motor driver circuit components is activated (momentary overcurrent).

P29 ALT

ALT

Outdoor fan IPDU error Outdoor fan IPDU detects error.

01: Compressor 1 02: Compressor 2

Compressor position detection circuit error

Compressor motor position detection error is detected.

Operation

Timer Read

Quick Reference

Toshiba SMMS-e Quick Reference

Specifications and Main Features

Frequently Asked Questions

User Manual