Mitsubishi Electric FDF100VNVD Technical Manual Download Page 86

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'11 • PAC-T-160

9.4 Instructions for branching pipe set (DIS-WA1, WB1, TA1, TB1)

INSTRUCTIONS FOR BRANCHING PIPE SET INSTALLATION FOR TWIN/TRIPLE/ W-TWIN CONFIGURATION SYSTEMS

PSB012D865

●

This set is for R410A refrigerant.

●

Select a branching pipe set correctly rated for the combined total capacity of connected indoor units and install it according to this manual.

An improperly installed branching pipe set can cause degraded performance or an abnormal unit stop.

●

Provide good heat insulation to the pipes by following instructions contained in this manual.

Improper heat insulation can result in degraded performance or a water leak accident from condensation.

●

Please make sure that only parts supplied as accessories or the manufacturer's approved parts are used in installing the unit, because a leak of refrigerant can

result in a lack-of-oxygen accident, if it reaches a concentration beyond the tolerable limit.

This manual explains how to use a branching pipe set that is indispensable in connecting pipes for a twin/triple/W-twin configuration installation (system). For the
details of piping work, unit installation work and electrical installation work, please refer to the installation manuals and installation guides supplied with your outdoor
and indoor units.

(1) Please make sure that you have chosen the right branching pipe set and the specifications of the parts contained in it by checking with the table below.
(2) Connect pipes as illustrated in the table below. The pipe from an outdoor unit must be brazed to the pipe connection port “

①

” and the pipes from indoor units to

“

②

,” “

③

” and “

④

.”

(3) To connect pipes for a W-twin installation (involving 4 indoor units), please see 2-7. “W-twin configuration.”
(4) A branching pipe set must always be installed into the posture as illustrated in the drawing below.

In connecting an indoor unit of which capacity is 1.5HP, 2HP or 2.5HP, always use a

9.52 liquid pipe to connect to the branching

pipe (branching pipe – indoor unit).
In connecting to an indoor unit (liquid pipe side:

6.35), use the different diameter pipe joint A supplied with the set and follow the

procedure set out below.

WARNING / CAUTION

Braze the different diameter pipe joint found in the set matching the connected outdoor and indoor unit capacities according to the instructions set out below.

1. Branching pipe set specifications

2. Pipe connecting procedure

＜

Posture to install into

＞

Two-way branching

Three-way branching

ID stands for inner diameter and OD, outer diameter.

Floor surface

Install it to make the part
lie parallel to the floor.

Floor surface

For R410A

Branching pipe set type

DIS-WA1

(Two-way branching set)

DIS-TA1

(Three-way branching set)

Supported outdoor/indoor unit combinations

Outdoor unit model Indoor unit model

3HP

1.5HP

＋

1.5HP

4HP

1.5HP

＋

2.5HP

2HP

＋

2HP

5HP

2.5HP

＋

2.5HP

6HP

3HP

＋

3HP

2HP

＋

3HP

2HP

＋

4HP

8HP

4HP

＋

4HP

3HP

＋

5HP

10HP

5HP

＋

5HP

6HP

2HP

＋

2HP

＋

2HP

Part lists

Branching pipe set for a liquid pipe Branching pipe set for a gas pipe

Different diameter pipe joint

Heat insulation material

ID9.52

ID15.88

ID9.52

ID15.88

ID12.7

One each for liquid and gas

1 piece

2 pieces

3 pieces

1 piece

①

② ③ ④

①

②

③

②

③

④

Joint A

Flare joint

(for indoor unit side connection)

Flare joint

(for indoor unit side connection)

DIS-TB1

(Three-way branching set)

3HP

＋

3HP

＋

3HP

8HP

ID9.52

ID25.4

ID15.88

1 piece

①

② ③ ④

①

②

③

④

ID12.7

OD15.88

Joint B

ID9.52

OD12.7

1 piece

Joint C

DIS-WB1

(Two-way branching set)

ID9.52

ID12.7

ID9.52

ID15.88

ID25.4

1 piece

①

②

③

CAUTION

Brazing

Liquid connecting pipe (

9.52)

Flarenut

6.35

Joint A

To indoor unit liquid pipe connection port

2-1

DIS-WA1

Supported combinations

Outdoor unit model Indoor unit model

6HP

2HP

＋

2HP

＋

2HP

Supported combinations

Outdoor unit model Indoor unit model

10HP

8HP

3HP

＋

5HP

4HP

＋

4HP

5HP

＋

5HP

Joint C

ID9.52

①

③

②

Install it to make the part
lie perpendicular to the floor.

ID9.52

2 pieces

Joint A

Flare joint (for indoor unit side connection)

ID12.7

OD15.88

1 piece

Joint B

OD9.52

ID12.7

1 piece

Joint D

Supported combinations

Outdoor unit model

Indoor unit model

3HP

＋

3HP

＋

3HP

8HP

1.5HP

＋

1.5HP

3HP

6HP

5HP

4HP

3HP

＋

3HP

2.5HP

＋

2.5HP

2HP

＋

2HP

1.5HP

＋

2.5HP

2HP

＋

3HP

2HP

＋

4HP

Connecting pipe

(

9.52)

ID9.52

①

②

③

Flare joint

(

6.35)

Joint A

CAUTION

Reference

Connecting pipe

(

9.52)

ID9.52

①

②

③

Flare joint

(

6.35)

Joint A

Joint B

ID15.88

①

②

③

ID12.7

ID15.88

CAUTION

Reference

2-3

DIS-TA1

Applicable to the difference in length of pipes after the branch being less than 3 m

* Connection is not allowed when the difference in length of pipes is larger than 3 m.

Applicable to the difference in length of pipes after the branch being less than 3 m

* Connection is not allowed when the difference in length of pipes is larger than 3 m.

When the difference in length of pipes after the branch is longer than 3 m and shorter than 10 m

2-5. Triple type for same model/same capacity or different model/same capacity

Outdoor unit

Indoor unit

Branching pipe

Indoor unit model

Outdoor unit model

Branching pipe set type

Liquid branching pipe

Gas branching pipe

ID9.52

①

②
③

Connecting pipe

(

9.52)

Flare joint

(

6.35)

Flare joint

(

6.35)

Joint A

CAUTION

Reference

Connecting pipe

(

9.52)

ID9.52

①

②

③

Flare joint

(

6.35)

Joint A

Joint B

ID15.88

①

②

③

ID12.7

ID15.88

CAUTION

Reference

Joint B

ID15.88

①

②

③

ID12.7

Joint B

2HP

＋

2HP

＋

2HP

DIS-WA1

6HP

3HP

＋

3HP

＋

3HP

DIS-WB1

8HP

DIS-WA1

ID9.52

①

②

③

ID25.4

①

②

③

ID15.88

①

②

ID15.88

③

ID9.52

Connecting pipe

(

9.52)

Joint A

Flare

joint

(

6.35)

Reference

②

③

④

①

CAUTION

2-4

DIS-TB1

Liquid branching pipe

Gas branching pipe

Liquid branching pipe

Gas branching pipe

Liquid branching pipe

Gas branching pipe

2-2

DIS-WB1

ID12.7

ID9.52

①

②

③

ID25.4

①

②

③

ID15.88

ID25.4

①

②

③

ID15.88

③
④

ID9.52

①

②

ID15.88

① ② ③ ④

ID12.7

ID25.4

① ② ③ ④

ID15.88

ID9.52

①

②
③

Connecting pipe

(

9.52)

Flare joint

(

6.35)

Flare joint

(

6.35)

Joint A

Joint B

ID15.88

①

②

③

ID12.7

Joint B

ID15.88

①

②

③

ID12.7

Joint B

ID15.88

①

②

③

ID12.7

Joint B

ID15.88

①

②

③

ID12.7

ID15.88

Joint B

ID15.88

①

②

③

ID12.7

ID15.88

CAUTION

Reference

Gas branching pipe

Supported combinations

Liquid branching pipe

Outdoor unit model Indoor unit model

ID9.52

①

②

③

ID15.88

①

②

ID15.88

③

ID15.88

①

②

ID15.88

③

Joint C

ID9.52

①

③

②

Note When connect the indoor unit of an old model that is shown in the model list,

use the joint supplied with the branch piping set like A

OLD Model list

model name

FDTA251R
FDENA251R
FDKNA251R
FDURA251R
FDUMA252R

A branching pipe set must always be installed into the posture as illustrated in the drawing below.

INSTRUCTIONS FOR BRANCHING PIPE SET INSTALLATION FOR TWIN/TRIPLE/ W-TWIN CONFIGURATION SYSTEMS

PSB012D865

●

This set is for R410A refrigerant.

●

Select a branching pipe set correctly rated for the combined total capacity of connected indoor units and install it according to this manual.

An improperly installed branching pipe set can cause degraded performance or an abnormal unit stop.

●

Provide good heat insulation to the pipes by following instructions contained in this manual.

Improper heat insulation can result in degraded performance or a water leak accident from condensation.

●

Please make sure that only parts supplied as accessories or the manufacturer's approved parts are used in installing the unit, because a leak of refrigerant can

result in a lack-of-oxygen accident, if it reaches a concentration beyond the tolerable limit.

①

” and the pipes from indoor units to

“

②

,” “

③

” and “

④

.”

In connecting an indoor unit of which capacity is 1.5HP, 2HP or 2.5HP, always use a

9.52 liquid pipe to connect to the branching

pipe (branching pipe – indoor unit).
In connecting to an indoor unit (liquid pipe side:

6.35), use the different diameter pipe joint A supplied with the set and follow the

procedure set out below.

WARNING / CAUTION

Braze the different diameter pipe joint found in the set matching the connected outdoor and indoor unit capacities according to the instructions set out below.

1. Branching pipe set specifications

2. Pipe connecting procedure

＜

Posture to install into

＞

Two-way branching

Three-way branching

ID stands for inner diameter and OD, outer diameter.

Floor surface

Install it to make the part
lie parallel to the floor.

Floor surface

For R410A

Branching pipe set type

DIS-WA1

(Two-way branching set)

DIS-TA1

(Three-way branching set)

Supported outdoor/indoor unit combinations

Outdoor unit model Indoor unit model

3HP

1.5HP

＋

1.5HP

4HP

1.5HP

＋

2.5HP

2HP

＋

2HP

5HP

2.5HP

＋

2.5HP

6HP

3HP

＋

3HP

2HP

＋

3HP

2HP

＋

4HP

8HP

4HP

＋

4HP

3HP

＋

5HP

10HP

5HP

＋

5HP

6HP

2HP

＋

2HP

＋

2HP

Part lists

Branching pipe set for a liquid pipe Branching pipe set for a gas pipe

Different diameter pipe joint

Heat insulation material

ID9.52

ID15.88

ID9.52

ID15.88

ID12.7

One each for liquid and gas

1 piece

2 pieces

3 pieces

1 piece

①

② ③ ④

①

②

③

②

③

④

Joint A

Flare joint

(for indoor unit side connection)

Flare joint

(for indoor unit side connection)

DIS-TB1

(Three-way branching set)

3HP

＋

3HP

＋

3HP

8HP

ID9.52

ID25.4

ID15.88

1 piece

①

② ③ ④

①

②

③

④

ID12.7

OD15.88

Joint B

ID9.52

OD12.7

1 piece

Joint C

DIS-WB1

(Two-way branching set)

ID9.52

ID12.7

ID9.52

ID15.88

ID25.4

1 piece

①

②

③

CAUTION

Brazing

Liquid connecting pipe (

9.52)

Flarenut

6.35

Joint A

To indoor unit liquid pipe connection port

2-1

DIS-WA1

Supported combinations

Outdoor unit model Indoor unit model

6HP

2HP

＋

2HP

＋

2HP

Supported combinations

Outdoor unit model Indoor unit model

10HP

8HP

3HP

＋

5HP

4HP

＋

4HP

5HP

＋

5HP

Joint C

ID9.52

①

③

②

Install it to make the part
lie perpendicular to the floor.

ID9.52

2 pieces

Joint A

Flare joint (for indoor unit side connection)

ID12.7

OD15.88

1 piece

Joint B

OD9.52

ID12.7

1 piece

Joint D

Supported combinations

Outdoor unit model

Indoor unit model

3HP

＋

3HP

＋

3HP

8HP

1.5HP

＋

1.5HP

3HP

6HP

5HP

4HP

3HP

＋

3HP

2.5HP

＋

2.5HP

2HP

＋

2HP

1.5HP

＋

2.5HP

2HP

＋

3HP

2HP

＋

4HP

Connecting pipe

(

9.52)

ID9.52

①

②

③

Flare joint

(

6.35)

Joint A

CAUTION

Reference

Connecting pipe

(

9.52)

ID9.52

①

②

③

Flare joint

(

6.35)

Joint A

Joint B

ID15.88

①

②

③

ID12.7

ID15.88

CAUTION

Reference

2-3

DIS-TA1

Applicable to the difference in length of pipes after the branch being less than 3 m

* Connection is not allowed when the difference in length of pipes is larger than 3 m.

Applicable to the difference in length of pipes after the branch being less than 3 m

* Connection is not allowed when the difference in length of pipes is larger than 3 m.

When the difference in length of pipes after the branch is longer than 3 m and shorter than 10 m

2-5. Triple type for same model/same capacity or different model/same capacity

Outdoor unit

Indoor unit

Branching pipe

Indoor unit model

Outdoor unit model

Branching pipe set type

Liquid branching pipe

Gas branching pipe

ID9.52

①

②
③

Connecting pipe

(

9.52)

Flare joint

(

6.35)

Flare joint

(

6.35)

Joint A

CAUTION

Reference

Connecting pipe

(

9.52)

ID9.52

①

②

③

Flare joint

(

6.35)

Joint A

Joint B

ID15.88

①

②

③

ID12.7

ID15.88

CAUTION

Reference

Joint B

ID15.88

①

②

③

ID12.7

Joint B

2HP

＋

2HP

＋

2HP

DIS-WA1

6HP

3HP

＋

3HP

＋

3HP

DIS-WB1

8HP

DIS-WA1

ID9.52

①

②

③

ID25.4

①

②

③

ID15.88

①

②

ID15.88

③

ID9.52

Connecting pipe

(

9.52)

Joint A

Flare

joint

(

6.35)

Reference

②

③

④

①

CAUTION

2-4

DIS-TB1

Liquid branching pipe

Gas branching pipe

Liquid branching pipe

Gas branching pipe

Liquid branching pipe

Gas branching pipe

2-2

DIS-WB1

ID12.7

ID9.52

①

②

③

ID25.4

①

②

③

ID15.88

ID25.4

①

②

③

ID15.88

③
④

ID9.52

①

②

ID15.88

① ② ③ ④

ID12.7

ID25.4

① ② ③ ④

ID15.88

ID9.52

①

②
③

Connecting pipe

(

9.52)

Flare joint

(

6.35)

Flare joint

(

6.35)

Joint A

Joint B

ID15.88

①

②

③

ID12.7

Joint B

ID15.88

①

②

③

ID12.7

Joint B

ID15.88

①

②

③

ID12.7

Joint B

ID15.88

①

②

③

ID12.7

ID15.88

Joint B

ID15.88

①

②

③

ID12.7

ID15.88

CAUTION

Reference

Gas branching pipe

Supported combinations

Liquid branching pipe

Outdoor unit model Indoor unit model

ID9.52

①

②

③

ID15.88

①

②

ID15.88

③

ID15.88

①

②

ID15.88

③

Joint C

ID9.52

①

③

②

Note When connect the indoor unit of an old model that is shown in the model list,

use the joint supplied with the branch piping set like A

OLD Model list

model name

FDTA251R
FDENA251R
FDKNA251R
FDURA251R
FDUMA252R

PSB012D865

Summary of Contents for FDF100VNVD

Page 1: ...SXVD 125VSXVD 140VSXVD MICRO INVERTER PACKAGED AIR CONDITIONERS Split system Air to air heat pump type Single phase use FDF140VNXPVD 3 phase use FDF140VSXPVD Single type Twin type FLOOR STANDING TYPE Single phase use FDF100VNVD 125VNVD 140VNVD 3 phase use FDF100VSVD 125VSVD 140VSVD Single phase use FDF140VNPVD 3 phase use FDF140VSPVD 200VSPVD 250VSPVD Single type Twin type updated August 01 2013 T...

Page 2: ...ation to air flow rate control fan speed 8 3 Correction of cooling and heating capacity in relation to one way length of refrigerant piping 8 4 Height difference between the indoor unit and outdoor unit 9 APPLICATION DATA 56 56 60 44 54 54 55 35 37 38 41 44 9 1 Installation of indoor unit 9 2 Electric wiring work instruction 9 3 Installation of outdoor unit 64 1 Model FDC71VNX 64 2 Models FDC100 1...

Page 3: ...nit 126 3 Troubleshooting at the indoor unit 123 5 Check of anomalous operation data with the remote controller 139 7 Inverter checker for diagnosis of inverter output 141 6 Power transistor module including the driver PCB inspection procedure 140 11 2 Troubleshooting flow 8 Outdoor unit controller failure diagnosis circuit diagram 142 How to read the model name FDF Floor standing type Example FDF...

Page 4: ...m Electric heater W 20 Crank case heater Remote controller RC E4 Installed wireless RCN KIT3 E option Room temperature control Thermostat by electronics Safety equipment Overload protection for fan motor Internal thermostat for fan motor Frost protection thermostat Abnormal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Flare piping Refrig...

Page 5: ...ote controller RC E4 Installed wireless RCN KIT3 E option Room temperature control Thermostat by electronics Safety equipment Overload protection for fan motor Internal thermostat for fan motor Frost protection thermostat Abnormal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Flare piping Refrigerant line one way length Max 100m Vertical ...

Page 6: ...ess RCN KIT3 E option Room temperature control Thermostat by electronics Safety equipment Overload protection for fan motor Internal thermostat for fan motor Frost protection thermostat Abnormal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Flare piping Refrigerant line one way length Vertical height difference between outdoor unit and in...

Page 7: ...s RCN KIT3 E option Room temperature control Thermostat by electronics Safety equipment Overload protection for fan motor Internal thermostat for fan motor Frost protection thermostat Abnormal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Flare piping Refrigerant line one way length Vertical height difference between outdoor unit and indo...

Page 8: ...stat Abnormal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Flare piping Refrigerant line one way length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 4 5kg Pre charged up to the piping length of 30m Outdoor unit Drain pump Drain Insulation for piping Necessary both Liquid Gas lines Standard Ac...

Page 9: ...load protection for fan motor Internal thermostat for fan motor Frost protection thermostat Abnormal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Flare piping Refrigerant line one way length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 4 5kg in outdoor unit incl the amount for the piping of 3...

Page 10: ...otor Internal thermostat for fan motor Frost protection thermostat Abnormal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Flare piping Refrigerant line one way length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 4 5kg in outdoor unit incl the amount for the piping of 30m Drain pump Drain Insul...

Page 11: ...mal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Flare piping Refrigerant line one way length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 4 5kg in outdoor unit incl the amount for the piping of 30m Drain pump Drain Insulation for piping Necessary both Liquid Gas lines Standard Accessories Mo...

Page 12: ...ay length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 4 5kg Pre charged up to the piping length of 30m Outdoor unit Drain pump Drain Insulation for piping Necessary both Liquid Gas lines Standard Accessories Mounting kit Edging Notes 1 The data are measured at the following conditions 2 This packaged air conditioner is manufactured and tested in confo...

Page 13: ...ecting method Flare piping Flare piping Refrigerant line one way length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 3 8kg in outdoor unit incl the amount for the piping of 30m Drain pump Drain Insulation for piping Necessary both Liquid Gas lines Standard Accessories Mounting kit Edging Notes 1 The data are measured at the following conditions 2 This ...

Page 14: ...nt piping size Connecting method Flare piping Flare piping Refrigerant line one way length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 3 8kg in outdoor unit incl the amount for the piping of 30m Drain pump Drain Insulation for piping Necessary both Liquid Gas lines Standard Accessories Mounting kit Edging Notes 1 The data are measured at the following...

Page 15: ...ne way length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 3 8kg in outdoor unit incl the amount for the piping of 30m Drain pump Drain Insulation for piping Necessary both Liquid Gas lines Standard Accessories Mounting kit Edging Notes 1 The data are measured at the following conditions 2 This packaged air conditioner is manufactured and tested in con...

Page 16: ...ain Insulation for piping Necessary both Liquid Gas lines Standard Accessories Mounting kit Edging Notes 1 The data are measured at the following conditions 2 This packaged air conditioner is manufactured and tested in conformity with the ISO 3 Sound pressure level indicates the value in an anechoic chamber During operation these value are somewhat higher due to ambient temperature 4 The operation...

Page 17: ... between outdoor unit and indoor unit Refrigerant Quantity R410A 3 8kg in outdoor unit incl the amount for the piping of 30m Drain pump Drain Insulation for piping Necessary both Liquid Gas lines Standard Accessories Mounting kit Edging Notes 1 The data are measured at the following conditions 2 This packaged air conditioner is manufactured and tested in conformity with the ISO 3 Sound pressure le...

Page 18: ...igerant Quantity R410A 3 8kg in outdoor unit incl the amount for the piping of 30m Drain pump Drain Insulation for piping Necessary both Liquid Gas lines Standard Accessories Mounting kit Edging Notes 1 The data are measured at the following conditions 2 This packaged air conditioner is manufactured and tested in conformity with the ISO 3 Sound pressure level indicates the value in an anechoic cha...

Page 19: ...ulation for piping Necessary both Liquid Gas lines Standard Accessories Mounting kit Edging Notes 1 The data are measured at the following conditions 2 This packaged air conditioner is manufactured and tested in conformity with the ISO 3 Sound pressure level indicates the value in an anechoic chamber During operation these value are somewhat higher due to ambient temperature 4 The operation data i...

Page 20: ... at the following conditions 2 This packaged air conditioner is manufactured and tested in conformity with the ISO 3 Sound pressure level indicates the value in an anechoic chamber During operation these value are somewhat higher due to ambient temperature 4 The operation data indicates when the air conditioner is operated at 400V50Hz or 380V60Hz 5 Indoor unit specifications for one unit Capacity ...

Page 21: ...d at the following conditions 2 This packaged air conditioner is manufactured and tested in conformity with the ISO 3 Sound pressure level indicates the value in an anechoic chamber During operation these value are somewhat higher due to ambient temperature 4 The operation data indicates when the air conditioner is operated at 400V50Hz or 380V60Hz 5 Indoor unit specifications for one unit Capacity...

Page 22: ...otor Internal thermostat for fan motor Frost protection thermostat Abnormal discharge temperature protection Installation data Refrigerant piping size Connecting method Flare piping Liquid Flare Gas Brazing Refrigerant line one way length Vertical height difference between outdoor unit and indoor unit Refrigerant Quantity R410A 7 2kg Pre charged up to the piping length of 30m Outdoor unit Drain pu...

Page 23: ...ut Hole on wall for rear piping 4 7 25 Slot Hole on wall for side piping M8 2 places φ100 Knock out φ100 Resin cap having φ20 VP20 Fall prevention metal fittings Metal fittings to fix to floor face Hole on wall for bottom piping Drain piping Liquid piping Gas piping H G F E D C B A C o n t e n t Symbol φ9 52 3 8 Flare φ15 88 5 8 Flare 143 82 15 622 5 15 17 5 35 25 50 or more or more or more or mor...

Page 24: ...is attached on the lower right corner of the front φ15 88 5 8 Flare Content C Pipe cable draw out hole D E Anchor bolt hole Drain discharge hole Symbol B A Service valve connection gas side M10 4places φ20 3places Minimum installation space L1 L3 L2 Intake Outlet Intake L2 L3 L4 L1 300 100 250 Open ＩＩＩ Open 250 100 500 ＩＩＩ 380 19 24 103 5 48 5 580 880 418 340 88 150 150 27 32 E A B C Terminal ...

Page 25: ...winds lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction 4 Leave 1m or more space above the unit 5 A wall in front of the blower outlet must not exceed the units height 6 The model name label is attached on the lower right corner of the front panel 7 Connect the Service valve with local pipe by using the pipe of the attachment Gas side only Unit ...

Page 26: ... that the blower outlet faces perpendicularly to the dominant wind direction 4 Leave 1m or more space above the unit 5 A wall in front of the blower outlet must not exceed the units height 6 The model name label is attached on the lower right corner of the front φ15 88 5 8 Flare Content C Pipe cable draw out hole D E Anchor bolt hole Drain discharge hole Symbol B A Service valve connection gas sid...

Page 27: ...2 7 8 Brazing φ30 2places front φ45 side φ50 back Notes 1 It must not be surrounded by walls on the four sides 2 The unit must be fixed with anchor bolts An anchor bolt must not protrude more the 15mm 3 Where the unit is subject to strong winds lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction 4 Leave 1m or more space above the unit 5 A wall in ...

Page 28: ...ng the pipe of the attachment Gas side only 8 Mark shows the connecting posotion of the local pipe Gas side only φ19 05 3 4 Flare Content C Pipe cable draw out hole D E Anchor bolt hole Drain discharge hole Symbol B A Service valve connection of the M10 4places φ20 3places Service valve connection liquid side φ12 7 1 2 Flare L2 L3 L4 L1 300 150 5 Open ＩＩＩ Open 5 150 500 ＩＩＩ Open 5 300 5 F Cabl...

Page 29: ...nput volt free contact CNWR RD L RD Orange OR BR Brown BK Black Blue Color Marks BL Mark Color Red RD Y WH Yellow White GR Gray Y GN Yellow Green Mark Color Mark Color Notes 1 indicates wiring on site 2 See the wiring diagram of outside unit about the line between 3 Use twin core cable 0 3mm X2 at remote controller line See spec sheet of remote controller in case that the total length is more than...

Page 30: ...mp Heat exchanger temp Suction pipe temp 63H1 BK BK BL BL 20S CNS RD BR BR CNR WH CH CNA2 WH CNA1 WH BL RD BL RD C1 RD BL CNH PK CNI3 WH CNI1 WH CNG1 BK BL BL BK CNG2 BK CNI4 WH CNI2 WH MS 3 CM U U V W RD WH BK V W T27 T26 T30 T28 T29 IPM PWB2 INV CN01 WH T22 T21 T24 T25 L1 YE BK RD WH YE GN YE GN T4 T5 T6 F 20A RD WH T2 F6 5A T1 T8 T9 T10 T11 T13 1 3 WH RD F3 4A CNO2 WH N F PWB3 CNW WH PWB1 N L1 ...

Page 31: ...able size mm 2 A Power cable length m indoor outdoor wire size x number Earth wire size mm 125 29 31 Ø1 6mm x 3 Ø1 6 The specifications shown in the above table are for units without heaters For units with heaters refer to the installation instructions or the construction instructions of the indoor unit Switchgear of Circuit breaker capacity which is calculated from MAX over current should be chos...

Page 32: ...r current Power cable size mm 2 A Power cable length m indoor outdoor wire size x number Earth wire size 125 18 23 Ø1 6mm x 3 The specifications shown in the above table are for units without heaters For units with heaters refer to the installation instructions or the construction instructions of the indoor unit Switchgear of Circuit breaker capacity which is calculated from MAX over current shoul...

Page 33: ...r will be in the operation when Trial operation can be performed by using SW3 3 4 in a very snowy country set this switch to ON the compressor is not runnning when the unit is used when outdoor temperature falls to 3 or lower and fan will run for 30 seconds in every 10 minutes When this switch is turned ON the outdoor unit turned ON in the area where outside temperature by turning ON this switch T...

Page 34: ...ng operation interval becomes shorter 100 Model Power cable indoor outdoor connecting wires MAX over current Power cable size mm 2 A Power cable length m indoor outdoor wire size x number mm 2 Earth wire size mm 2 125 15 3 5 27 Ø1 6mm x 3 Ø1 6mm 100 Model At the connection with the duct type indoor unit MAX over current Power cable size mm 2 A Power cable length m indoor outdoor wire size x number...

Page 35: ...3 is finished 4 SW3 4 is ON SW3 3 is ON Method of trial operation Be sure to turn OFF SW3 3 after the trial operation SW3 4 is OFF and heating trial operation when Cooling trial operation will be performed when Compressor will be in the operation when Trial operation can be performed by using SW3 3 4 in a very snowy country set this switch to ON the compressor is not runnning when the unit is used...

Page 36: ... side 1m Height 1m 63 125 250 500 Mid Octave Band Frequency Hz Souud Pressure Level standard 2 10 5 Pa 1000 2000 4000 8000 20 30 40 50 60 70 20 30 40 50 60 70 N30 N40 N20 N50 N60 N70 Models FDC125VNX 125VSX Models FDC125VNX 125VSX Heating noise level 50 dB A 63 125 250 500 Mid Octave Band Frequency Hz Souud Pressure Level standard 2 10 5 Pa 1000 2000 4000 8000 20 30 40 50 60 70 20 30 40 50 60 70 N...

Page 37: ...3 125 250 500 Mid Octave Band Frequency Hz Souud Pressure Level standard 2 10 5 Pa 1000 2000 4000 8000 20 30 40 50 60 70 20 30 40 50 60 70 N30 N40 N20 N50 N60 N70 N30 N40 N20 N50 N60 N70 N30 N40 N20 N50 N60 N70 N30 N40 N20 N50 N60 N70 N30 N40 N20 N50 N60 N70 N30 N40 N20 N50 N60 N70 N30 N40 N20 N50 N60 N70 b Micro inverter Models FDC100VN 100VS Noise level 49 dB A Models FDC125VN 125VS Models FDC12...

Page 38: ...uver position Horizontal 2 Heating Air flow Hi Louver position Horizontal Indoor temperature Cooling 27 CDB 19 CWB Heating 20 CDB Note These figures represent the typical main range of temperature and velocity distribution at the center of air outlet within the published conditions In the actual installation they may differ from the typical figures under the influence of air temperature conditions...

Page 39: ... Outdoor unit Thermistor ThO S Thermistor ThO H Thermistor ThO D Thermistor ThO A Cooling cycle Heating cycle Thermistor ThO R2 Thermistor ThO R1 Receiver Receiver Electronic expansion valve heating EEVH Electronic expansion valve cooling EEVC Heat exchanger High pressure switch 63H Lower pressure sensor LPT Strainer Strainer Strainer Strainer Strainer Oil separator Capillaly tube Sub cooling coil...

Page 40: ... Liquid branch pipe Electronic expansion valve Electronic expansion valve EEVC Strainer Strainer Receiver ø6 35 ø9 52 ø9 52 Models 200 250 Thermistor Return air ThI A Thermistor Heat exchanger ThI R3 Thermistor Heat exchanger ThI R2 Thermistor Heat exchanger ThI R1 Heat exchanger Indoor unit Indoor unit Flare connecting Flare connecting Gas branch pipe Liquid branch pipe ø9 52 Gas line ø15 88 Liqu...

Page 41: ...6 C Thermistor for frost prevention OFF 1 0 C ON 10 C Thermistor for protection high pressure in cooling Tho R TH1 Outdoor unit OFF 51 C ON 65 C Thermistor for detecting dis charge pipe temp Tho D TH3 Outdoor unit OFF 115 C ON 85 C OFF 135 C ON 90 C High pressure switch for protection 63H1 Outdoor unit OFF 4 15MPa ON 3 15MPa Low pressure sensor for protection LPT Outdoor unit OFF 0 227MPa ON 0 079...

Page 42: ... Flammable gas may leak 2 Carbon fiber metal particles powder etc are floating 3 Cosmetic or special sprays are used frequently 4 Exposed to oil splashes or steam e g kitchen and machine plant 5 Exposed to sea breeze e g coastal area or calcium chloride e g snow melting agent 6 Exposed to ammonia substance e g organic fertilizer 7 Matters affecting devices such as sulfuric gas chlorine gas acid al...

Page 43: ...of operable temperature range mentioned above and cooling capacity may not be established under certain conditions Precaution In case of severely low temperature condition 1 Install the outdoor unit at the place where strong wind cannot blow directly into the outdoor unit 2 If there is no installation place where can prevent strong wind from directly blowing into the outdoor unit mount the flex fl...

Page 44: ... way pipe length Gas piping FDC200VS FDC250VS Gas piping FDC100 125 140VNX FDC100 125 140VSX FDC200VS Liquid piping L H L L1 L L2 70m L1 L2 L2 L1 70m 30m Dimensional limitations Models for outdoor unit s n o i t p i r c s e D Marks appearing in the drawing Difference of pipe length after first branching point L1 L2 FDC100 125 140VNX FDC100 125 140VSX One way pipe length after first branching point...

Page 45: ...30 5 33 7 52 5 26 7 74 5 19 8 18 5 42 29 6 34 5 10 6 75 4 93 7 19 5 29 7 41 5 22 7 64 5 16 8 09 5 40 31 6 23 5 05 6 64 4 88 7 08 5 25 7 31 5 19 7 54 5 13 7 99 5 37 33 5 77 4 70 6 05 4 98 6 53 4 84 6 97 5 21 7 20 5 15 7 44 5 10 7 90 5 34 35 5 67 4 65 5 95 4 94 6 42 4 80 6 86 5 17 7 10 5 12 7 34 5 06 7 81 5 32 37 5 58 4 61 5 85 4 90 6 31 4 76 6 72 5 12 6 95 5 07 7 18 5 02 7 64 5 27 39 5 49 4 57 5 76...

Page 46: ...B 26 CDB 27 CDB 28 CDB 31 CDB 33 CDB 12 CWB 14 CWB 16 CWB 18 CWB 19 CWB 20 CWB 22 CWB 24 CWB CDB TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 11 10 41 8 00 11 05 8 58 11 37 8 52 11 72 8 46 12 42 8 88 13 12 8 72 13 10 79 8 17 11 46 8 75 11 79 8 68 12 16 8 63 12 91 9 06 13 65 8 89 15 11 16 8 34 11 87 8 92 12 22 8 86 12 61 8 80 13 39 9 23 14 17 9 06 17 11 54 8 51 12 27 9 09 12 64 9 03 13 0...

Page 47: ...ure 18 CDB 21 CDB 23 CDB 26 CDB 27 CDB 28 CDB 31 CDB 33 CDB 12 CWB 14 CWB 16 CWB 18 CWB 19 CWB 20 CWB 22 CWB 24 CWB CDB TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 11 11 66 9 16 12 38 9 89 12 73 9 77 13 13 9 66 13 91 10 17 14 70 9 89 13 12 08 9 31 12 83 10 04 13 21 9 92 13 62 9 80 14 45 10 32 15 28 10 03 15 12 50 9 47 13 29 10 20 13 68 10 07 14 12 9 96 14 99 10 46 15 87 10 17 17 12 92 ...

Page 48: ... 9 62 29 11 05 8 80 11 88 8 66 12 70 9 27 13 10 9 21 13 51 9 15 14 31 9 56 31 10 95 8 75 11 71 8 59 12 49 9 18 12 90 9 13 13 31 9 07 14 13 9 49 33 10 26 8 22 10 73 8 64 11 53 8 50 12 29 9 10 12 70 9 05 13 11 8 99 13 94 9 42 35 9 71 7 93 10 39 8 48 11 36 8 43 12 08 9 01 12 50 8 97 12 92 8 92 13 76 9 36 37 9 60 7 88 10 22 8 40 11 15 8 33 11 86 8 92 12 26 8 87 12 67 8 82 13 47 9 25 39 9 48 7 82 10 05...

Page 49: ...0 60 14 90 10 48 15 34 10 34 16 23 10 81 29 12 37 10 07 13 31 9 78 14 23 10 52 14 68 10 40 15 13 10 27 16 03 10 75 31 12 26 10 02 13 11 9 70 13 99 10 44 14 45 10 33 14 91 10 20 15 82 10 69 33 11 49 9 37 12 02 9 92 12 92 9 63 13 76 10 36 14 23 10 25 14 69 10 13 15 61 10 64 35 10 88 9 10 11 63 9 76 12 72 9 55 13 53 10 28 14 00 10 18 14 47 10 06 15 41 10 58 37 10 75 9 04 11 45 9 69 12 49 9 47 13 29 1...

Page 50: ...0 8 05 8 01 7 97 7 92 1 0 2 8 27 8 22 8 18 8 13 8 08 1 0 0 8 44 8 39 8 34 8 29 8 24 2 0 1 8 52 8 47 8 42 8 37 8 32 3 0 2 9 08 9 03 8 98 8 94 8 90 5 0 4 10 21 10 15 10 09 10 08 10 07 7 0 6 11 33 11 27 11 20 11 22 11 23 9 0 8 11 78 11 71 11 64 11 62 11 59 11 5 10 12 23 12 16 12 09 12 02 11 94 13 5 12 12 91 12 83 12 75 12 65 12 60 15 5 14 13 59 13 50 13 42 13 29 13 26 16 5 16 13 93 13 84 13 75 13 61 ...

Page 51: ...81 11 75 11 68 11 61 11 54 1 0 0 12 05 11 99 11 92 11 84 11 77 2 0 1 12 18 12 11 12 04 11 96 11 89 3 0 2 12 98 12 90 12 83 12 77 12 72 5 0 4 14 58 14 50 14 41 14 40 14 38 7 0 6 16 19 16 09 16 00 16 02 16 05 9 0 8 16 83 16 73 16 63 16 59 16 55 11 5 10 17 46 17 37 17 27 17 17 17 06 13 5 12 18 44 18 33 18 22 18 08 18 00 15 5 14 19 41 19 29 19 17 18 99 18 95 16 5 16 19 90 19 77 19 64 19 45 19 42 Outdo...

Page 52: ... 0 2 8 27 8 22 8 18 8 13 8 08 1 0 0 8 44 8 39 8 34 8 29 8 24 2 0 1 8 52 8 47 8 42 8 37 8 32 3 0 2 9 08 9 03 8 98 8 94 8 90 5 0 4 10 21 10 15 10 09 10 08 10 07 7 0 6 11 33 11 27 11 20 11 22 11 23 9 0 8 11 78 11 71 11 64 11 62 11 59 11 5 10 12 23 12 16 12 09 12 02 11 94 13 5 12 12 91 12 83 12 75 12 65 12 60 15 5 14 13 59 13 50 13 42 13 29 13 26 16 5 16 13 93 13 84 13 75 13 61 13 59 Outdoor air temp ...

Page 53: ...1 1 0 2 11 81 11 75 11 68 11 61 11 54 1 0 0 12 05 11 99 11 92 11 84 11 77 2 0 1 12 18 12 11 12 04 11 96 11 89 3 0 2 12 98 12 90 12 83 12 77 12 72 5 0 4 14 58 14 50 14 41 14 40 14 38 7 0 6 16 19 16 09 16 00 16 02 16 05 9 0 8 16 83 16 73 16 63 16 59 16 55 11 5 10 17 46 17 37 17 27 17 17 17 06 13 5 12 18 44 18 33 18 22 18 08 18 00 15 5 14 19 41 19 29 19 17 18 99 18 95 16 5 16 19 90 19 77 19 64 19 45 ...

Page 54: ...door air temperature 18 CDB 21 CDB 23 CDB 26 CDB 27 CDB 28 CDB 31 CDB 33 CDB 12 CWB 14 CWB 16 CWB 18 CWB 19 CWB 20 CWB 22 CWB 24 CWB CDB TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 11 21 71 16 40 23 02 17 54 23 67 17 40 24 38 17 28 25 79 18 10 27 21 17 76 13 22 38 16 70 23 74 17 84 24 42 17 70 25 16 17 58 26 63 18 40 28 11 18 05 15 23 04 17 00 24 46 18 14 25 17 18 01 25 94 17 88 27 48 ...

Page 55: ...09 1 011 1 0 982 0 964 0 950 0 946 1 1 002 1 001 1 002 1 0 975 0 951 0 932 0 927 0 997 0 996 0 992 0 992 7 5 10 1 1 1 1 1 1 008 1 016 1 022 1 026 1 0 996 0 991 0 986 0 985 1 006 1 013 1 018 1 021 Equivalent piping length m Cooling Heating 71 model 100 model 125 model 140 model 71 model 100 model 125 model 140 model φ15 88 φ19 05 φ25 4 φ22 22 φ28 58 Equivalent piping length 1 m Cooling Heating 7 5 ...

Page 56: ...e or when the outdoor unit is located above indoor units in heating mode the correction coefficient mentioned in the below table should be subtracted from the value in the above table Height difference between the indoor unit and outdoor unit in the vertical height difference 8 4 Height difference between the indoor unit and outdoor unit Adjustment coefficient Example The net cooling capacity of t...

Page 57: ...rth leakage breaker must be installed Unless the earth leakage circuit breaker is provided if could cause a fire or electric shock Use the circuit breaker of correct capacity Circuit breaker should be the one that disconnect all poles under over current Using the incorrect one could cause the system failure and fire Do not use any materials other than a fuse of correct capacity where a fuse should...

Page 58: ...osition L fitting 622 5 17 5 35 15 2 φ8 Fixing position Fall prevention fitting Since the unit is tall secure the unit no sooner than setting it in place Pipes wires and small parts Accessory 1 Open the air inlet grill and Nos 1 will be found in the unit 2 Nos 2 2 4 will be found at the same place as 1 3 Fall prevention fitting is mounting on the top panel of the unit 4 L fittings are mounted on t...

Page 59: ...nner in order to avoid unexpected stress to the copper pipe and then remove them When fastening the flare nut align the refrigeration pipe with the center of flare nut screw the nut for 3 4 times by hand and then tighten it with a spanner within the specified torque mentioned in the table below Make sure to hold the flared male fitting on the indoor unit side with another spanner when tightening t...

Page 60: ...d at left Remove the cover and make connections PGA012D404 WARNING CAUTION Drain socket Procedure Control box position and power cable connection Control box Control box Clamp for fixing Grounding line Power cable Clam For guide Terminal block for signal wire Terminal block for power cable Clamp For fixing Do not insert the drain pipe directly in the drain ditch where toxic gases such as sulffuric...

Page 61: ...Indoor Unit Outdoor Unit Indoor Unit Outdoor Unit Earth Earth Earth Earth Earth Earth Earth Earth leakage breaker Power source Use three core cable as wiring between indoor and outdoor unit As for detail refer to INSTALLATION MANUAL of outdoor Unit Set earth of D type Keep remote controller line and power source line away from each other on constructing of unit outside Run the lines power source r...

Page 62: ...uring heating operation Possible to set in the range of 20 to 30ûC 68 to 86ûF Lower limit setting valid except heating automatic cooling fan dry Possible to set in the range of 18 to 26ûC 62 to 79ûF When you set upper and lower limit by this function control as below 1 When TEMP RANGE SET remote controller function of function setting mode is INDN CHANGE factory setting During heating you cannot s...

Page 63: ...d or heating thermostat is off the fan perform extra operation for six hours During heating is stopped or heating thermostat is off the fan perform intermittent operation for five minutes after twenty minutes off with low airflow During heating is stopped or heating thermostat is off the fan perform intermittent operation for five minutes after five minutes off with low airflow Items marked with a...

Page 64: ...king outdoor circuit board LED checking red checking green normal Content Display on remote controller LED on indoor circuit board Error Code of indoor unit Function of CNT connector of indoor printed circuit board CNT connector local vendor model Connector Made by molex 5264 06 Terminals Made by molex 5263T Function Output 1 Output 2 Output 3 Output 4 Input 5 Operation output there is output when...

Page 65: ...ssor is operated in state of opening service valves before completed connection of refrigerant piping work you may incur frost bite or injury from an abrupt refrigerant outflow and air can be sucked into refrigerant circuit which can cause burst or personal injury due to anomalously high pressure in the refrigerant Only use prescribed optional parts The installation must be carried out by the qual...

Page 66: ...p the indoor unit in its packing or cover it Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them Insufficient insulation can cause condensation which can lead to moisture damage on the ceiling floor furniture and any other valuables Be sure to perform air tightness test by pressurizing with nitrogen gas after completed refrigerant piping work If the den...

Page 67: ...d by heat radiation from other heat source 〇 A place where snow will not accumulate 〇 A place where the unit can be kept away 5m or more from TV set and or radio receiver in order to avoid any radio or TV interference 〇 A place where good air circulation can be secured and enough service space can be secured for maintenance and service of the unit safely 〇 A place where the unit will not be affect...

Page 68: ...s pipe When the outdoor unit is positioned higher When the outdoor unit is positioned lower In the case of a twin type Take care so that installed pipes may not touch components within a unit If touching with an internal component it will generate abnormal sounds and or vibrations Carry out the on site piping work with the operation valve fully closed Give sufficient protection to a pipe end compr...

Page 69: ...JOTVMBUJOH NBUFSJBM UIBU DBO XJUITUBOE PS B IJHIFS UFNQFSBUVSF 1PPS IFBU JOTVMBUJOH DBQBDJUZ DBO DBVTF IFBU JOTVMBUJPO QSPCMFNT PS DBCMF EFUFSJPSBUJPO MM HBT QJQFT NVTU CF TFDVSFMZ IFBU JOTVMBUFE JO PSEFS UP QSFWFOU EBNBHF GSPN ESJQQJOH XBUFS UIBU DPNFT GSPN UIF DPOEFOTBUJPO GPSNFE PO UIFN EVSJOH B DPPMJOH PQFSBUJPO PS QFSTPOBM JOKVSZ GSPN CVSOT CFDBVTF UIFJS TVSGBDF DBO SFBDI RVJUF B IJHI UFNQFSB...

Page 70: ...O TFSWJDF QSPWJEFS RVBMJmFE CZ B QPXFS QSPWJEFS PG UIF DPVOUSZ MFDUSJDBM JOTUBMMBUJPO XPSL NVTU CF FYFDVUFE BDDPSEJOH UP UIF UFDIOJDBM TUBOEBSET BOE PUIFS SFHVMBUJPOT BQQMJDBCMF UP FMFDUSJDBM JOTUBMMBUJPOT JO UIF DPVOUSZ P OPU VTF BOZ TVQQMZ DPSE MJHIUFS UIBO POF TQFDJmFE JO QBSFOUIFTFT GPS FBDI UZQF CFMPX CSBJEFE DPSE DPEF EFTJHOBUJPO PSEJOBSZ UPVHI SVCCFS TIFBUIFE DPSE DPEF EFTJHOBUJPO nBU UXJO ...

Page 71: ...U SVO QSPDFEVSF UFN P VTFE JO UIF JOTUBMMBUJPO NBOVBM UFNT UP DIFDLCFGPSF B UFTU SVO PPMJOH PQFSBUJPO FBUJOH PQFSBUJPO 4VDUJPO QSFTTVSF PX QSFTTVSF JTDIBSHF QSFTTVSF JHI QSFTTVSF IFDL KPJOU PG UIF QJQF IBSHF QPSU PG UIF HBT PQFSBUJPO WBMWF 4FUUJOH 48 48 1MFBTF SFNPWF B TFSWJDF QBOFM FGSPTU DPOUSPM TXJUDIJOH 48 8IFO UIJT TXJUDI JT UVSOFE 0 UIF VOJU XJMM SVO JO UIF EFGSPTU NPEF NPSF GSFRVFOUMZ 4FU U...

Page 72: ...P XBTI UIF QJQF TZTUFN DPOUBDU PVS EJTUSJCVUPS JO UIF BSFB SFO U UIFSF BOZ MPPTF QJQF TVQQPSUT SF UIFSF BOZ CSBODI QJQFT XJUI OP JOEPPS VOJU DPOOFDUFE G BO FSSPS DPEF PUIFS UIBO UIPTF MJTUFE BCPWF JT JOEJDBUFE SFGFS UP UIF XJSJOH EJBHSBN PG UIF PVUEPPS VOJU BOE UIF JOEPPS VOJU BDUVBUJPO PS PQFSBUJPO XJUI PQFSBUJPO WBMWFT TIVU PDDVST NBJOMZ EVSJOH B IFBUJOH PQFSBUJPO PX QSFTTVSF FSSPS PS PQFSBUJPO ...

Page 73: ...utdoor unit You may incur injury from a drop or fall CAUTION Heavy J PSB012D955F INSTALLATION MANUAL FOR OUTDOOR UNIT SAFETY PRECAUTIONS PSB012D955F 2 REFRIGE 1 HAULAGE AND INSTALLATION Take particular care in carrying in or moving the unit and always perform such an operation with two or more persons Inverter driven single split PAC 100VN 140VN 100VS 140VS 100VNX 140VNX 100VSX 140VSX Designed for...

Page 74: ...VSX Twin type Triple type 140VNX 140VSX 140VN 140VS 140VNX 140VSX 100VNX 125VNX 100VSX 125VSX 100VN 125VN 100VS 125VS 50m 100m 140VN 140VS 140VNX 140VSX 100VNX 125VNX 100VSX 125VSX H L H L L1 L2 L3 La L1 1 L L L L La L1 L2 L3 L L1 L2 L3 L La L1 L2 L3 L2 L3 L La L2 L1 La L3 1 La L2 La L3 1 L1 L2 L3 h1 h2 h3 H h1 h2 h3 L1 L2 L2 L3 L3 L1 L L1 L2 L1 L2 L1 L2 L H h Indoor unit connected Capacity of ind...

Page 75: ...4 Failure dia Power cable indoor outdoor connecting wires E34 E40 E49 Model 100V 140V M4 Screw Do not connect to the grounding wire from another unit but install a dedicated wire up to the grounding wire from the distribution board Fasten cables and protect the terminal connection from external force It is attached on the back side of the service panel As like the refrigerant pipe it can be let ou...

Page 76: ... 50 25 25 Length covered without additional charge 30 30 15 15 Usability 1 1 Maximum one way pipe length 50 50 25 25 Length covered without additional charge 30 30 15 15 100VN 100VS 125VN 125VS 0 06kg m 0 08kg m 140VN 140VS NO Are the existing units our products Check whether an existing pipe system is reusable or not by using the following flow chart NO NO NO Is the existing pipe system to reuse ...

Page 77: ...ry Do not install the unit in the locations listed below Locations where carbon fiber metal powder or any powder is floating Locations where any substances that can affect the unit such as sulphide gas chloride gas acid and alkaline can occur Vehicles and ships CAUTION PSB012D923L L Page 56 INSTALLATION MANUAL FOR OUTDOOR UNIT PSB012D923L 2 REFRIGE Inverter driven single split PAC 200V 250V Design...

Page 78: ...olts M10 12 Use a thicker block to anchor deeper Use a long block to extend the width 5 Installation space Walls surrounding the unit in the four sides are not acceptable There must be a 1 meter or larger space in the above Where a danger of short circuiting exists install guide louvers When more than one unit are installed provide sufficient intake space consciously so that short circuiting may n...

Page 79: ...or unit Branching pipe set Branching pipe set Refrigerant piping branch pipe La L1 Refrigerant piping branch pipe La Lb Refrigerant piping branch pipe L2 L3 Indoor unit connected Refrigerant piping branch pipe L1 L2 L3 L4 In the case of asingle type In the case of atwin type In the case of a triple type A In the case of a triple type B In the case of a W twin type DIS WB1 DIS TB1 DIS WB1 DIS WB1 D...

Page 80: ...ess mm Pipe material 6 35 0 8 O type pipe 9 52 0 8 O type pipe 12 7 0 8 O type pipe 15 88 1 0 O type pipe 22 22 1 0 1 2H type pipe 25 4 1 0 1 2H type pipe 28 58 1 0 1 2H type pipe NOTE Phosphorus deoxidized seamless copper pipe C1220T JIS H3300 Heavy Only use nitrogen gas N2 Taping N2 Nitrogen Brazing Hand Relief valve Nitrogen gas Select pipes having a wall thickness larger than the specified min...

Page 81: ... 80 80 11 PAC T 160 ...

Page 82: ... 81 81 11 PAC T 160 ...

Page 83: ... 82 82 11 PAC T 160 ...

Page 84: ...irection 4 Elbow 1 or 0 Procured in the field Not required for downward direction Be sure to use pipes of 1 2H material and wall thickness above 1mm Pressure resistance of O type pipe is not enough Switch ON SW5 1 on the control PCB if O type pipe must be used and bent with the bender During heating operation the high pressure protection may be actuated under the condition lower than the normal pr...

Page 85: ...ured in the field Braze the field pipe here Construction example Forward Accessory pipe A Straight pipe Procured in the field 185 235mm Straight pipe Procured in the field above 125mm Elbow procured in the field Braze the field pipe here Construction example Rightward Accessory pipe A Straight pipe Procured in the field 185 235mm Straight pipe Procured in the field above 405mm Elbow procured in th...

Page 86: ...2 7 1 piece Joint D 3HP 6HP 5HP 4HP F Wh 2 5 Tri Outdo Supp Outdoor unit Note Wh use A branching pipe set must always be installed into the posture as illustrated in the drawing below INSTRUCTIONSFORBRANCHINGPIPESETINSTALLATIONFORTWIN TRIPLE W TWINCONFIGURATIONSYSTEMS PSB012D865 This set is for R410A refrigerant Select a branching pipe set correctly rated for the combined total capacity of connect...

Page 87: ... model Outdoor unit model Branching pipe set type Liquid branching pipe Gas branching pipe ID9 52 Connecting pipe φ9 52 Flare joint φ6 35 Flare joint φ6 35 Joint A Joint A CAUTION Reference Connecting pipe φ9 52 ID9 52 ID9 52 Flare joint φ6 35 Joint A Joint B ID15 88 ID12 7 ID15 88 CAUTION Reference Joint B ID15 88 ID12 7 ID12 7 Joint B 2HP 2HP 2HP a DIS WA1 6HP b 3HP 3HP 3HP a DIS WB1 8HP b DIS W...

Page 88: ...tton is pressed Invalid Operation is displayed but it does not mean a failure Cover AIR CON No button Display the indoor unit number connected to this remote controller CHECK button This button is used at servicing TEST button This button is used during test operation Weekly timer display Displays the settings of the weekly timer Operation setting display area Displays setting temperature airflow ...

Page 89: ... the state of stop is memorized Although the timer mode is cancelled at the recovery from power failure the setting of weekly timer is changed to the holiday setting for all weekdays Operation mode Airflow volume mode Room temperature setting Louver auto swing stop However the stop position 4 position is cancelled so that it returns to Position 1 Remote controller function items which have been se...

Page 90: ...functional items during cooling heating Cooling Heating Dehumidify Fan Operation Functional item Thermostat ON Thermostat ON Thermostat OFF Thermostat OFF Hot start Defrost Compressor 4 way valve Outdoor unit fan Indoor unit fan Louver motor Drain pump 3 2 2 Thermostat ON Thermostat OFF 2 2 Note 1 Operation Stop Turned ON OFF by the control other than the room temperature control 2 ON during the d...

Page 91: ...ower ON This is not displayed under the Remote mode 2 If this display is not shown under the Center Remote mode check if the indoor unit power switch is turned on or not f Hot start Cold draft prevention at heating At the startup of heating operation at resetting of the thermostat during defrost operation and at returning to heating the indoor fan is controlled by the indoor heat exchanger tempera...

Page 92: ...elected the fan is operated with the indoor unit fan tap at ULo 3 If Set fan speed is selected the fan is operated with the set fan speed even if the thermostat is turned OFF 4 If Intermittent is selected following controls take place a The indoor unit on which the thermostat is turned OFF during heating operation changes to the hot control and if the heat exchanger temperature sensors both ThI R1...

Page 93: ...ON OFF switch or by when the thermister turned OFF the change of operation mode If the thermostat is turned OFF during the forced operation control of heating compressor the louver position with the auto swing is returned to the level position Note 1 The compressor stops when it has entered the protective control k Indoor heat exchanger anti frost Frost protection 1 Forced compressor OFF 1 If the ...

Page 94: ... invalid of fan control can be selected with the frost protection control of the wired remote controller indoor function l Heating overload protection 1 If the indoor heat exchanger temperature detected with ThI R2 R2 at 63 C or higher is detected for 2 seconds the heating overload protection control starts and is released if temperatures at 56 C or lower are detected 2 First detection of heating ...

Page 95: ...y to the remote controller a Center or each remote controller basis heating preparation the youngest unit No among the operating units in the remote mode or the center mode unless the remote mode is available is displayed b Inspection display filter sign Any of unit that starts initially is displayed c Confirmation of connected units Pressing AIR CON No button on the remote controller displays the...

Page 96: ...tion Unit stops 1 Only the LEVEL INPUT is acceptable for external input however when the indoor function setting of Level input Factory default or Pulse input is selected by the function for External input of the wired remote controller operation status will be changed as follows In case of Level input setting In case of Pulse input setting Unit operation from the wired remote controller becomes a...

Page 97: ...ation input connector CnT 6 is provided on the indoor control PCB However remote operation by CnT 6 is not effective when Center mode is selected by center controller In case of plural unit twin triple double twin remote operation input to CnT 6 on the slave indoor unit is invalid Only the LEVEL INPUT is acceptable for external input however when the indoor function setting of Level input Factory ...

Page 98: ...nit 䇭 slave Indoor unit 䇭 slave Indoor unit 䇭 slave Cn External input Ⓝ Individual operation Factory default All units operation Local setting CnT 6 ON OFF ON OFF Only the unit directly connected to the remote controller can be operated Only the unit directly connected to the remote controller can be stopped opeartion All units in one remote controller system can be operated All units in one remot...

Page 99: ...wever has the upper limit of 30 C Compressor Compressor Standard Operation Stop Setting temperature 1 1 Room temperature deg Operation Stop Setting temperature 2 4 Room temperature deg When it is set at 3 C t Return air temperature compensation This is the function to compensate the deviation between the detection temperature by the return air temperature thermistor and the measured temperature af...

Page 100: ...60 80 85 70 80 Outdoor air temperature is 10 C or higher 90 105 110 100 120 6 Selection of max required frequency by heat exchanger temperature 1 Maximum required frequency is selected according to the outdoor unit heat exchanger temperature Tho R during cooling dehumidifying or according to the indoor unit heat exchanger temperature ThI R during heating mode 2 When there are 3 indoor unit heat ex...

Page 101: ...frequency operation control is performed during cooling dehumidifying Control contents Starts with the compressor s target frequency at A rps When the outdoor air temperature Tho A is 35 C or higher it starts at C rps At 30 seconds after the compressor start the compressor s target frequency is changed to B rps and the compressor s operation frequency is fixed for 10 minutes Model Operation mode A...

Page 102: ...7 zone 46 48 zone Outdoor unit heat exchanger temp C 20 30 zone 33 40 zone 43 53 zone 3 Fan tap control during heating operation Fan taps are selected depending on the outdoor unit heat exchanger temperature Tho R1 R2 and the outdoor air temperature Tho A Note 1 It is detected by Tho R1 or R2 whichever the lower Model 100 140 Model 200 250 zone zone zone zone zone zone zone Tap 3 Tap 3 Tap 4 zone ...

Page 103: ...ency B rps Power transistor radiator fin temperature C C c Control contents i Raises the outdoor unit fan tap by 1 tap ii When the sampling is for 60 minutes and the value of power transistor radiator fin temperature Tho P is as follows When the power transistor radiator fin temperature Tho P C C the outdoor unit fan tap is raised by 1 speed further When C C power transistor radiator fin temperatu...

Page 104: ...pressor and the outdoor air temperature is as shown by the lower figure LPT detection Outdoor air temp C 2 4 LPT invalid b Defrosting conditions B i When previous defrosting end condition is the time out of defrosting operation and it is in the heating operation after the cumulative compressor operation time after the end of defrosting has become 30 minutes ii After 5 minutes from the start of com...

Page 105: ...compressor stops ii When it is detected 2 times within 60 minutes or after continuous 60 minutes including the stop of compressor E36 is displayed on the remote controller and it enters the anomalous stop mode Compressor stop Compressor operation Discharge pipe temperature C 85 90 115 135 Note 1 Value in are for the model 200 250 c Reset of anomalous stop mode As it drops to the reset value of 85 ...

Page 106: ...control i When a value detected by the low pressure sensor LPT satisfies any of the following conditions the compressor stops to run for its protection When the low pressure drops to 0 079MPa or under for 15 seconds continuously At 10 minutes after the start of compressor the suction overheat becomes 30 C and the low pressure becomes 0 15MPa or under for 60 seconds continuously ii E49 is displayed...

Page 107: ...nt value in the power transistor exceeds the setting value the compressor stops b If the current value in the power transistor exceeds the specified value and the compressor stops 4 times within 30 minutes E42 is displayed on the remote controller and it enters the anomalous stop mode 10 Anomalous inverter PCB If the power transistor detects any anomaly for 15 minutes including the stop of compres...

Page 108: ...ng and for 3 minutes after the end of defrosting it is not detected Outdoor unit heat exchanger thermistor 50 C or lower Outdoor air temperature thermistor 45 or lower Low pressure sensor 0V or under or 3 49V or over b Discharge pipe temperature thermistor suction pipe temperature thermistor and underneath temperature thermistor model 200 250 only If the following is detected for 5 second continuo...

Page 109: ...er supply is turned OFF 1 Control contents a Close the operation valve at the liquid side It is left open at the gas side b Compressor is started with the target speed frequency at 55 rps in the cooling mode c Red and green lamps LED flash continuously on the outdoor unit control PCB d Each of protection and error detection controls excluding the low pressure control anti frost control and dewing ...

Page 110: ...3ºC or lower In the heating mode When the compressor is turned ON 2 Base heater OFF conditions When either one of following conditions is met the base heater is turned OFF Outdoor air temperature detected with Tho A is 5ºC or higher When the compressor stop has been detected for 30 minutes continuously In the cooling or dehumidifying mode Base heater ON Base heater OFF Outdoor air temperature ºC T...

Page 111: ...ature in heating mode Maximum required frequency is selected according to the outdoor air temperature Tho A Unit rps Model 71 100 125 140 Max required frequency Outdoor air temperature is 18 C or higher 76 75 80 85 Outdoor air temperature is 10 C or higher 100 100 100 100 Outdoor air temperature is 5 C or higher 100 f Selection of max required frequency by heat exchanger temperature 1 Maximum requ...

Page 112: ...of following start patterns according to the operation mode and the outdoor air temperature Tho A 1 Low frequency operation control during cooling dehumidifying Control condition Upon establishing the conditions of compressor protection start III the low frequency operation control is performed during cooling dehumidifying Control contents a Starts with the compressor s target frequency at A rps W...

Page 113: ...ne Outdoor unit heat exchanger temp C 20 30 zone 33 40 zone 43 53 zone c Fan tap control during heating operation Fan taps are selected depending on the outdoor unit heat exchanger temperature Tho R1 R2 and the outdoor air temperature Tho A Note 1 It is detected by Tho R1 or R2 whichever the lower zone zone zone zone Tap 3 Tap 3 Tap 4 zone Tap 3 Tap 4 5 Tap 5 zone Tap 4 Tap 5 Tap 6 Note 1 Value in...

Page 114: ...equency B rps c Power transistor radiator fin temperature C C 3 Control contents a Raises the outdoor unit fan tap by 1 tap b When the sampling is for 60 minutes and the value of power transistor radiator fin temperature Tho P is as follows When the power transistor radiator fin temperature Tho P C C the outdoor unit fan tap is raised by 1 speed further When C C power transistor radiator fin tempe...

Page 115: ...odel 71 2 Defrosting conditions B a When previous defrosting end condition is the time out of defrosting operation and it is in the heating operation after the cumulative compressor operation time after the end of defrosting has become 30 minutes b After 5 minutes from the start of compressor c After 5 minutes from the start of outdoor unit fan b Defrosting end conditions When any of the following...

Page 116: ...d with Tho D exceeds the setting value the compressor stops b When it is detected 2 times within 60 minutes or after continuous 60 minutes including the stop of compressor E36 is displayed on the remote controller and it enters the anomalous stop mode Compressor stop Compressor operation Discharge pipe temperature C 85 115 3 Reset of anomalous stop mode As it drops to the reset value of 85 C or lo...

Page 117: ...op control a When a value detected by the low pressure sensor LPT satisfies any of the following conditions the compressor stops to run for its protection When the low pressure drops to 0 079MPa or under for 15 seconds continuously At 10 minutes after the start of compressor the suction overheat becomes 30 C and the low pressure becomes 0 15MPa or under for 60 seconds continuously b E49 is display...

Page 118: ...malous stop mode j Anomalous inverter PCB If the power transistor detects any anomaly for 15 minutes including the stop of compressor E51 is displayed on the remote controller and it enters the anomalous stop mode k Anti frost control by the compressor frequency control 1 If the indoor unit heat exchanger temperature detected with ThI R exceeds the setting value at 4 minutes after the start of com...

Page 119: ...compressor ON the compressor stops After a delay of 3 minutes it restarts but if the same is detected repeatedly 3 times within 40 minutes the compressor stops with the anomalous stop Note 1 During defrosting and for 3 minutes after the end of defrosting it is not detected Outdoor unit heat exchanger thermistor 50 C or lower Outdoor air temperature thermistor 45 or lower Low pressure sensor 0V or ...

Page 120: ...3ºC or lower In the heating mode When the compressor is turned ON 2 Base heater OFF conditions When either one of following conditions is met the base heater is turned OFF Outdoor air temperature detected with Tho A is 5ºC or higher When the compressor stop has been detected for 30 minutes continuously In the cooling or dehumidifying mode Base heater ON Base heater OFF Outdoor air temperature ºC T...

Page 121: ...eps flashing Indoor heat exchanger tempera ture thermistor Defective indoor heat exchanger temperature thermistor defective element bro ken wire short circuit Poor contact of temperature thermistor connector Replacement repair of temperature thermistor 165 Indoor control PCB Defective indoor control PCB Defective temperature thermistor input circuit Replacement of PCB 1 time flash Keeps flashing S...

Page 122: ...PCB Anomalous inverter PCB communication Replacement of PCB Stays OFF Keeps flashing 1 time flash Keeps flashing 7 times flash Inverter PCB activefilter Defective outdoor inverter PCB Model FDC 71 Defective active filter of control Replacement 185 Stays OFF Keeps flashing 1 time flash Keeps flashing Keeps flashing Outdoor fan motor Anomalous outdoor fan motor Replacement repair 186 Outdoor control...

Page 123: ...s after initial detection of this anomalous temperature Indoor heat exchanger temperature thermistor anomaly 50 C or lower is detected for 5 seconds continuously within 60 minutes after initial detection of this anomalous temperature Or 70 C or higher is detected for 5 seconds continuously Outdoor Outdoor air temperature thermistor anomaly 45 C or lower is detected for 5 seconds continuously 3 tim...

Page 124: ...tails of respective inspection method will be described on later pages Trouble Confirmation of power supply Indoor outdoor unit Confirmation of remote controller and LEDs on the PCB of indoor unit and outdoor unit Indoor outdoor unit remote controller Check of the anomalous operation data on the remote controller Inspection of the unit controller Replacement repair of faulty part test run adjustme...

Page 125: ... 124 11 PAC T 160 4GRNCEG VJG 2 TGHGT VQ PGZV RCIG SAFETY PRECAUTIONS Part number b INSTRUCTION OF HOW TO REPLACE INDOOR UNIT POWER PCB PSB012D953C B ...

Page 126: ...valid Normal See table 2 Model selection As per model See table 1 Remarks Address No setting at plural indoor units control by 1 R C 0 F Switches Description Default setting Master Slave setting Master Slave Table 1 Indoor unit model selection with SW6 1 SW6 4 0 OFF 1 ON 71VD 100VD 125VD 140VD 1 1 0 1 0 1 0 0 0 0 1 1 1 1 1 1 SW6 4 SW6 1 SW6 2 SW6 3 Table 2 Indoor unit Master Slave setting with SW5...

Page 127: ...econfirming that voltage has been discharged sufficiently by measuring the voltage DC between both terminals of electrolytic capacitor C58 Measurment of voltage may be disturbed by the moisture proof coating In such case remove the coating and measure it by taking care of avoiding electrical shock a Module of part to be replaced for outdoor unit controller Outdoor control PCB Inverter PCB Temperat...

Page 128: ...NFAN CNEEV2 CNPS CNA2 1 Model FDC71VNX a Replace the PCB after elapsing 3 minutes from power OFF Be sure to measure voltage DC between T26 and T27 on inverter PCB and check that the voltage is discharged sufficiently 10V or less Refer to Fig 1 b Disconnect the connectors from the control PCB c Match the switches setting SW4 with the former PCB d Connect the connectors to the control PCB Confirm th...

Page 129: ...h CT1 on the PCB before replacing the PCB e Match the setting switches SW3 5 JSW SW J5 7 with the former PCB f Tighten up a screw after passing white or blue wiring through CT1 of the changed g Please connect the connectors with the same place Confirm the connectors are not half inserted PCA012D024F H after elapsing 3 minutes from power OFF connectors are not half inserted Parts Arrangement View C...

Page 130: ...iring passing through CT1 on the PCB before replacing the PCB d Match the setting switches SW3 5 JSW with the former PCB e Tighten up a screw after passing white wiring through CT1 of the changed f Connect the connectors to the control PCB Confirm the connectors are not half inserted after elapsing 3 minutes from power OFF connectors are not half inserted Parts No Parts arrangement view CNA2 CNIP ...

Page 131: ...through CT1 on the PCB before replacing the PCB d Match the setting switches SW3 5 JSW with the former PCB e Tighten up a screw after passing white wiring through CT1 of the changed f Connect the connectors to the control PCB Confirm the connectors are not half inserted after elapsing 3 minutes from power OFF connectors are not half inserted Parts No Parts arrangement view CNA2 CNIP CNTH CNPS CNI1...

Page 132: ...he connectors from the control PCB c Disconnect the blue wiring passing through CT1 on the substrate before replacing the PCB d Match the setting switches SW3 5 JSW with the former PCB e Tighten up a screw after passing blue wiring through CT1 of the changed f Connect the connectors to the control PCB Confirm the connectors are not half inserted Parts No Parts Arrangement View Fig 1 Position of ca...

Page 133: ...ACTIVE FILTER IC2 after elapsing 3 minutes from power OFF Connectors are not half inserted PCA012D022G B c Outdoor inverter PCB replacement procedure Precautions for Safety Since the following precaution is the important contents for safety be sure to observe them WARNING and CAUTION are described as follows WARNING Indicates an imminently hazardous situation which will result in death or serious ...

Page 134: ...uniformly a bundled of silicon grease first on the surface of power transistor Make sure it is applied to prevent damage on power transistor e Tighten the screw of power transistor on inverter PCB and connect the terminal block Confirm the connection and don t use soldering in the connection Tighten properly the power transistor with a screw and make sure there is no slack Power transistor can be ...

Page 135: ...3 OFF SW5 4 OFF J5 With J7 With Default setting Outdoor fan control when ducting Normal Hi tap Valid Normal Valid Invalid Keep OFF Keep OFF Keep OFF Keep OFF Keep OFF Keep ON Reserved Overseas See table 1 Model selection 3 phase Single phase As per model Model selection Domestic Overseas Normal Test run mode Cooling Heating Cooling Test run SW Normal Test run Normal Snow protection control Normal ...

Page 136: ...ply uniformly a bundled of silicon grease first on the surface of power transistor Make sure it is applied to prevent damage on power transistor e Tighten the screw of power transistor on inverter PCB and connect the terminal block Confirm the connection and don t use soldering in the connection Tighten properly the power transistor with a screw and make sure there is no clearance gap Power transi...

Page 137: ... PCB Apply uniformly a bundled of silicon grease first on the surface of power transistor Make sure it is applied to prevent damage on power transistor e Tighten the screw of power transistor on inverter PCB and connect the terminal block Confirm the connection and don t use soldering in the connection Tighten properly the power transistor with a screw and make sure there is no clearance gap Power...

Page 138: ...he connector CNR of replace the PCB c Make set switch SW1 2 as shown in Table 1 d Connect the terminal of terminal block and the connector to the inverter PCB Remove the short bar form the PCB before the replacement Connect it with P2 P3 pins of PCB after the replacement Connector CNR Terminal block TB2 Parts Arrangement View the inverter PCB Parts No R S T Noise filter substrate SW1 2 Fig 1 The f...

Page 139: ...s per model See table 1 Switches Description Remarks Pump down operation Antifrost control Reserved Reserved Reserved Reserved Reserved 3 phase OFF Single phase ON Table 1 Outdoor unit model selection with JSW1 1 JSW1 4 and SW4 1 SW4 2 0 OFF 1 ON 100VN 100VS 125VN 125VS 140VN 140VS 200VS 250VS JSW1 1 0 0 1 1 0 0 1 0 JSW1 2 0 0 0 0 1 1 1 0 JSW1 3 0 0 0 0 0 0 0 1 JSW1 4 0 0 0 0 0 0 0 0 SW4 1 1 1 1 1...

Page 140: ...ture anomaly P104 ｆ 1 b 3 Current safe control of inverter primary current P106 ｆ 7 4 High pressure protection control P104 ｆ 2 a P 105 ｆ 3 a 5 High pressure anomaly P104 ｆ 2 b 6 Low pressure protection control P105 ｆ 5 a 7 Low pressure anomaly P105 ｆ 5 b 8 Anti frost prevention control P106 ｆ 11 9 Current cut P106 ｆ 7 10 Power transistor protection control P106 ｆ 8 11 Power transistor anomaly Ove...

Page 141: ... of red harness to compressor V End of white harness to compressor W End of black or blue harness to compressor Check for a power transistor short circuit When you do not have a diagnostic checker for judging if the inverter is defective measure between the terminals of the power transistor parts judge whether the power transistor is defective or not Disconnect the compressor then measure with the...

Page 142: ...move the terminal cover of compressor and disconnect the wires U V W from compressor 3 Connect the wires U Red V White and W Black of checker to the terminal of disconnected wires U V W from compressor respectively b Operation for judgment 1 Power ON after JSW10 4 on outdoor inverter PCB was turned ON 2 After 15 seconds since power has turned ON LED start ON OFF for 5 seconds cyclically and it rep...

Page 143: ... with the mark when the power is ON LED1 Green LED2 Red Power supply check Measure the power supply at L N It is normal if it is AC 220 240V Noise filter check There should be continuity There should be no shorts between phase Must be conductive When fuse is blown replace it or check wiring LED2 Red check 1 5 time flash Refer to page 121 No anomaly like breakage swell etc allowed Voltage between t...

Page 144: ... CNB CNIP CNW CNW2 CNE CNH CNR CNS CNEEV1 CNEEV2 CNFAN1 CNA1 CNI3 CNI1 18V 15V FMO1 M M M SM2 SM1 20S CNF OPTION DH CH1 THo R2 THo P THo A THo S THo D THo R1 Power supply check Measure the power supply L1 N It is normal if it is AC220 240V Noise filter check There should be continuity There should be no shorts between phases DC Reactor continuity Check Max 25mΩ Capacitor check Check for anomaly in...

Page 145: ... CNW CNW2 CNE CNH CNR CNS DH CNF OPTION CNEEV1 CNEEV2 CNI2 CNW1 CNO1 CNE Power supply check Measure the power supply L1 L2 L3 It is normal if it is AC380 415V FDC100 125 140VSX Outdoor unit check points Check items with the mark when the power is ON Noise filter check There should be continuity There should be no shorts between phases Resistance check Resistance is measured 15Ω DC Reactor contiuit...

Page 146: ... 2 CNE CNH CNR CNS CNEEV1 CNEEV2 CNFAN1 CNA1 CNI3 CNI1 18V 15V FMO1 SM2 SM1 20S CH1 THo R2 THo IPM THo A THo S THo D THo R1 Power supply check Measure the power supply L1 N It is normal if it is AC220 240V Noise filter check There should be continuity There should be no shorts between phases DC Reactor continuity Check Max 25mΩ Capacitor check Check for anomaly in appearance such as damage swellin...

Page 147: ...ply check Measure the power supply L1 L2 L3 It is normal if it is AC380 415V FDC100 125 140VS Outdoor unit check points Check items with the mark when the power is ON Noise filter check There should be continuity There should be no shorts between phases Resistance check Resistance is measured 15Ω DC Reactor contiuity check 55mΩ or less Capacitor check Check for anomaly in appearance such as damage...

Page 148: ... check points Cheek items with the mark when the power is ON LED2 Red LED1 Green LED2 Red LED1 Green F1 250V 3A Power supply check Measure the power supply L1 L2 L3 It is normal if it is AC380 415V Noise filter check There should be continuity There should be no shorts between phases Resistance check Resistance is measured 15Ω DC Reactor contiuity check 55mΩ or less Capacitor check Check for anoma...

Page 149: ...e controller 168 E14 Communication error of indoor units 169 E11 Address setting error between master and slave indoor units 168 1 E16 Indoor fan motor anomaly 170 E19 Indoor unit operation check 171 E20 Indoor fan motor rotation speed anomaly 172 E28 Remote controller temperature thermistor anomaly 173 E35 Cooling overload operation 174 E36 Discharge pipe temperature error 175 E37 Outdoor heat ex...

Page 150: ... NO NO Is the compressor operating NO YES NO Note 1 Outdoor 35 C Indoor 27 C 1 WAIT It is normal This unit is designed to start in the soft start mode by detecting the under dome temperature of compressor when it restart after power reset It is necessary to replace to higher capacity one or to install additional unit Compressor refrigerant oil protection control at starting is activated For the co...

Page 151: ...or operating NO YES NO Note 1 Outdoor 7 C Indoor 20 C 1 WAIT It is normal This unit is designed to start in the soft start mode by detecting the under dome temperature of compressor when it restart after power reset It is necessary to replace to higher capacity one or to install additional unit Compressor refrigerant oil protection control at starting is activated For the contents of control refer...

Page 152: ...frigerant migrated in the compressor When the earth breaker is activated at lower insulation resistance check the following points 6 hours after power ON check if the insulation resistance recovers to normal When power ON crankcase heater heat up compressor and evaporate the refrigerant migrated in the compressor Check if the earth leakage breaker is conformed to higher harmonic regulation or not ...

Page 153: ...d etc by fixing pipes on the wall or wrapping rubber cushion around the pipe which goes through the hole in the wall or applying other appropriate means Strength of ceiling wall floor etc may be insufficient Review the installing position or reinforce it Check for leaning of installed unit or anomalous mounting of fan louver or motor and specify the contacting point and correct it When the heat ex...

Page 154: ...uring cooling or defrosting in the heating mode It is normal The noise vibration occurs when the refrigerant starts or stops flowing It is normal When the defrosting starts or stops during heating the refrigerant flow is reversed due to switching 4 way valve This causes a large change in pressure which produces a blowing sound It may accompany also the hissing sounds as mentioned above They are no...

Page 155: ...rant vacuum dry and recharge refrigerant Since there could be many causes of noise vibration the above do not cover all In such case check the conditions when where how the noise vibration occurs according to following check point Indoor outdoor unit Cooling heating fan mode Startup stop during operation Operating condition Indoor outdoor temperatures pressure Time it occurred Operation data retai...

Page 156: ...r isAC220 240V for 1 phase unit detected between 1 and 2 on the terminal block of outdoor unit YES YES YES YES Is JX1 open Defective outdoor control PCB Noise filter Misconnection or breakage of connecting wires Defective indoor control or power PCB Replace Replace FM LM etc Replace fuse Defective indoor power PCB Replace Open JX1 Defective indoor control PCB Replace 2 Error detection method 3 Con...

Page 157: ... controller wires NO Is DC15V or higher detected between X Y of indoor unit terminal block YES YES YES YES NO NO NO Correct Replace wires Replace remote controller Defective indoor power PCB Replace Defective indoor control PCB Replace 2 Error detection method 3 Condition of Error displayed 4 Presumable cause Remote controller wire breakage short circuit Defective remote controller Malfunction by ...

Page 158: ...eset NO YES YES NO NO NO NO NO YES YES YES Set one remote controller for Master and the other for Slave Set SW1 on remote controller PCB at Master Set address again SW2 on indoor control PCB Separate remote controller wires from high voltage wires Defective indoor control PCB Replace Defective remote controller Change 2 Error detection method Communication between indoor unit and remote controller...

Page 159: ...ve 4 Presumable cause Improper setting Surrounding environment Defective remote controller communication circuit Faulty indoor control or power PCB Faulty outdoor control PCB Note If any error is detected 30 minutes after displaying WAIT on the remote controller the display changes to INSPECT I U NO NO NO NO NO Are more than 3 units of remote controller connected Does remote controller display Sla...

Page 160: ...or unit terminal block Is approx DC20V detected between on the indoor unit terminal block WAIT Defective indoor control PCB Replace Defective indoor control PCB Replace Defective remote controller Replace Broken remote controller wire Y Replace Correct connection wires between indoor and outdoor units Defective outdoor control PCB Replace Defective connection wire Broken Noise Defective indoor con...

Page 161: ...the outdoor control PCB blown NO YES Is DC5V detected on the outdoor control PCB Between of CNI1 NO YES Is DC5V detected if the connector of outdoor unit fan motor is disconnected NO Model 71 140 Is DC255 310V detected at CNA2 Model 200 250 Is 220 240 detected at CNW2 1 Note 2 Value in are for the model 200 250 2 Normal Malfunction by noise Replace noise filter Check connection of diode stack and ...

Page 162: ...itor NO Replace the power supply fuse YES Isn t there a short circuit between phases of the noise filter Isn t there a short circuit between phases of inverter PCB input terminals Isn t there any crack burning on the power transistor module Is the reactor OK Is the electrolytic capacitor OK Note 1 For model 200 250 replace also the power transistor module 2 Error detection method 3 Condition of Er...

Page 163: ...roller wires if the remote controller is removed Are wires connected properly between the indoor outdoor units NO Defective remote controller Defective remote controller Defective connecting wire Defective remote controller wire Short circuit etc Defective indoor control PCB Replace 2 Error detection method 3 Condition of Error displayed 4 Presumable cause Faulty indoor control PCB Defective remot...

Page 164: ...ipheral environment Defective indoor control PCB Replace Defective remote controller Replace 2 Error detection method When normal communication between the remote controller and the indoor unit is interrupted for more than 2 minutes Detectable only with the remote controller 3 Condition of Error displayed Same as above 4 Presumable cause Defective communication circuit between remote controller in...

Page 165: ...In case that the outdoor unit red LED flashes 2 times Repair signal wires Repair signal wires To the diagnosis of WAIT Unit is normal Malfunction by temporary noise etc Defective outdoor control PCB Defective network communication circuit Replace Unit is normal Malfunction by temporary noise etc 2 Error detection method When normal communication between indoor and outdoor unit is interrupted for m...

Page 166: ... control PCB Replace Defective indoor unit heat exchanger temperature thermistor input circuit 2 Error detection method Anomalously low temperature or high temperature resistance is detected on the indoor heat exchanger thermistor ThI R1 R2 or R3 3 Condition of Error displayed When the temperature thermistor detects 50 C or lower for 5 seconds continuously the compressor stops After 3 minutes dela...

Page 167: ...place Defective indoor control PCB Replace Defective return air temperature thermistor input circuit 2 Error detection method Anomalously low temperature or high temperature resistance is detected by indoor return air temperature thermistor Thi A 3 Condition of Error displayed When the temperature thermistor detects 50 C or lower for 5 seconds continuously the compressor stops After 3 minute delay...

Page 168: ...tor see the error display E6 YES NO YES NO Error stop Reset Indoor heat exchanger temperature C 56 63 Wash Defective indoor heat exchanger temperature thermistor connector Correct Defective indoor heat exchanger temperature thermistor Check refrigerant system Adjust 2 Error detection method Indoor heat exchanger temperature thermistor ThI R1 R2 R3 3 Condition of Error displayed When it is detected...

Page 169: ...han 17 indoor units connected to one remote controller NO YES Defective remote controller Replace Reduce to 16 or less units 2 Error detection method When it detects more than 17 of indoor units connected to one remote contorller 3 Condition of Error displayed Same as above 4 Presumable cause Excessive number of indoor units connected Defective remote controller Note Error code Remote controller L...

Page 170: ... settings Select IU 2 Error detection method IU address has been set using the Master IU address set function of remote control 3 Condition of Error displayed Same as above 4 Presumable cause Same as above Note Is Master IU address set function of remote control used E11 occurs YES Error code Remote control LED Green Red Indoor Content IU IU IU R C In case the wiring is below and Mastar IU address...

Page 171: ...wer supply Note 1 Set dip switches SW5 1 and SW5 2 as shown in the following table Factory default setting Master Master Slave a Slave b Slave c SW5 1 OFF OFF ON SW5 2 OFF ON OFF ON ON Dip switch Indoor unit YES NO NO YES Correct unit address setting Correct wiring Defective indoor control PCB Replace Malfunction by noise Check surrounding environment 2 Error detection method When communication er...

Page 172: ...or persists after replacing the fan motor replace the indoor control PCB Malfunction by temporary noise 2 Error detection method Detected by rotation speed of indoor fan motor 3 Condition of Error displayed When actual rotation speed of indoor fan motor drops to lower than 200rpm for 30 seconds continuously the compressor and the indoor fan motor stop After 2 seconds it starts again automatically ...

Page 173: ...ective SW7 Replace Turn SW7 1 on the indoor control PCB OFF and reset the power 2 Error detection method After indoor operation check when the communication between indoor and outdoor unit is established and SW7 1 is still kept ON 3 Condition of Error displayed Same as above 4 Presumable cause Mistake in SW7 1 setting Due to forgetting to turn OFF SW7 1 after indoor operation check Note Error code...

Page 174: ...e fan motor If the anomaly persists after replacing the fan motor replace the indoor control PCB Malfunction by temporary noise 2 Error detection method Detected by rotation speed of indoor fan motor 3 Condition of error displayed When the actual fan rotation speed does not reach to the speed of required speed 50rpm after 2 minutes have been elapsed since the fan motor rotation speed command was o...

Page 175: ...s error occurs again within 60 minutes after the initial detection 4 Presumable cause Faulty connection of remote controller temperature thermistor Defective remote controller temperature thermistor Defective remote controller PCB Note After 10 seconds has passed since remote controller thermistor was switched from valid to invalid E28 will not be displayed even if the thermistor harness is discon...

Page 176: ... temperature thermistor Check unit side Isn t the air circulation of outdoor unit short circuited Are installation spaces adequate Isn t there any fouling or clogging on heat exchanger Control operation check Defective outdoor control PCB Replace Excessive refrigerant amount Recharge refrigerant by weighing proper amount on a scale 2 Error detection method For the error detection method refer to t...

Page 177: ...mount on a scale Control operation check Defective outdoor control PCB Replace Check unit side Isn t filter clogged Are adequate indoor outdoor unit installation spaces Isn t there any short circuit of air Isn t there any fouling clogging on indoor heat exchanger 2 Error detection method For the error detection method refer to the protective control by controlling compressor rotation speed and coo...

Page 178: ...ective outdoor control PCB Replace Defective outdoor heat exchanger temperature thermistor input circuit 2 Error detection method Detection of anomalously low temperature resistance on the outdoor heat exchanger temperature thermistor 3 Condition of Error displayed When the temperature thermistor detects 50 C or lower for 20 seconds continuously within 2 minutes to 2 minutes 20 seconds after the c...

Page 179: ...trol PCB Replace Defective outdoor air temperature thermistor input circuit 2 Error detection method Detection of anomalously low temperature resistance on outdoor air temperature thermistor 3 Condition of Error displayed When the temperature thermistor detects 45 C or lower for 5 seconds continuously within 2 minutes to 2 minutes 20 seconds after the compressor ON the compressor stops After 3 min...

Page 180: ...ce characteristics Temperature thermistor resistance kΩ Temperature C Broken wire Shot circuit Correct connector Defective discharge pipe temperature thermistor Replace Defective outdoor control PCB Replace Defective temperature thermistor input circuit 2 Error detection method Detection of anomalously low temperature resistance on the discharge pipe temperature thermistor 3 Condition of Error dis...

Page 181: ...on OK YES YES If the power supply breaker is turned OFF and ON too quickly E40 may be displayed This is normal NO YES If any anomaly exists on the electronic expansion valve connector connection the power supply must be reset NO Open service valve Correct 63H1 connector Correct electronic expansion valve connector Defective outdoor control PCB Replace Defective 63H1 input circuit 2 Error detection...

Page 182: ... only When less than 14VDC of the output voltage is detected between and on CNI3 E41 is displayed See Note mentioned below When less than 14VDC of the output voltage is detected between and on CNI3 E41 is displayed See Note mentioned below Inverter PCB anomaly Outdoor fan motor anomaly Control PCB anomaly Noise filter PCB anomaly Note 2 How to check the voltage between and of CNI3 㹢See E51 㩷 Is DC...

Page 183: ...istor temperture thermistor anomaly Inadequate installation space of outdoor unit Is it possible to reset the error for 10 minuted after compressor stopped Can error be reset NO NO YES Is the installation space of outdoor unit enough Is the outdoor fan running Replace inverter PCB Are the characteristics of power transitor temperature thermistor OK Is the fixing of power transistor to radiator fin...

Page 184: ...4Ω or more at 20 C Models FDC200 250 NO NO NO Check power supply Open the valves Check refrigerant amount and refregerant circuit In case of transitional increase of high pressure and or test run several times restarting may recover it because liquid refrigerant migrated in the compresser is discharged from the compressor Replace compressor 2 Error detection method In order to prevent from overcur...

Page 185: ...rom previous page YES FDC71 250 Defective inverter PCB Replace For model 200 250 replace also the power transistor module FDC71 250 Defective inverter PCB Replace For model 200 250 replace also the power transistor module 2 Error detection method In order to prevent from overcurrent of inverter if the current exceeds the specifications it makes the compressor stopping 3 Condition of Error displaye...

Page 186: ...een inverter PCB and outdoor control PCB Outdoor control PCB anomaly Outdoor fan motor anomaly YES NO NO YES Are both switches of JSW10 11 SW1 2 on the inverter PCB set correctly NO YES Is the connection of connectors between the inverter PCB and the outdoor control PCB OK NO YES Is the communication wire between the inverter PCB and the outdoor control PCB connected properly Replace the outdoor c...

Page 187: ...detection method In order to prevent from overcurrent of A F if the current exceeds the specifications it makes the compressor stopping 3 Condition of error displayed If the output current of A F exceeds the specifications it makes the compressor stopping 4 Presumable cause Defective inverter PCB Note Error code Remote controller LED Green Red Outdoor control PCB Outdoor Inverter PCB 1 time flash ...

Page 188: ...tor 3 Condition of Error displayed When actual rotation speed of outdoor fan motor FMo1 drops to 100min 1 or lower for 30 minutes continuously the compressor and the outdoor fan motor stop After 3 minutes delay it starts again automatically but if this anomaly occurs 5 times within 60 minutes after the initial detection 4 Presumable cause Defective outdoor control PCB Foreign material at rotationa...

Page 189: ...ontrol PCB Replace Replace low pressure sensor 2 Error detection method Detected by low pressure drop and suction superheat 3 Condition of Error displayed When the low pressure sensor detects 0 079MPa or lower for 15 seconds continuously compressor stops and it restarts automatically after 3 minutes delay And if this anomaly occurs 3 times within 60 minutes 10 minutes after the compressor starts i...

Page 190: ...essure sensor and suction pipe temprerature thermister connector OK NO YES NO YES Are the characteristics of low pressure sensor suction pipe temperature thermistor OK Is the low pressure normal during operation Continued from previous page Open fully Correct Defective low pressure sensor suction pipe temperature thermistor Replace Charge refrigerant Defective outdoor control PCB Replace Defective...

Page 191: ...r PCB 1 time flash Keeps flashing Yellow or Red LED Green Indoor control PCB Stays OFF Keeps flashing Keeps flashing Content 6 times flash or 2 times flash Inverter and fan motor anomaly Outdoor fan motor anomaly Inverter PCB anomaly Outdoor control PCB anomaly Note 2 How to check the voltage between and of CNI3 For FDC71 㧦 15V 㧦 G ND For FDC100 140 and FDC200 250 Model FDC71 140VN Model FDC100 14...

Page 192: ...tdoor control PCB Replace Defective suction pipe temperature thermistor input circuit 2 Error detection method When the suction pipe temperature thermistor detects anomalously low temperature 3 Condition of Error displayed If the temperature thermistor detects 50 C or lower for 5 seconds continuously within 10 minutes to 10 minutes 20 seconds after compressor ON the compressor stops When the compr...

Page 193: ...Is refrigerant amount charged properly Is there any anomaly on the refrigeration circuit Defective outdoor control PCB Replace Defective low pressure sensor input circuit OK 2 Error detection method When anomalous voltage pressure is detected 3 Condition of Error displayed If the pressure sensor detects 0V or lower and 3 49V or higher for 5 seconds continuously within 2 minutes to 2 minutes 20 sec...

Page 194: ...tion of underneath temperature thermistor connector Defective underneath temperature thermistor Replace Replace outdoor control PCB Defective underneath temperature thermistor input circuit 2 Error detection method When anoumalous low temperature resistance is detected by the underneath temperature thermistor 3 Condition of Error displayed If the temperature thermistor detcts 50 C or lower for 5 s...

Page 195: ...rror detection method Judge insufficient refrigerant amount by detecting the temperature differnce between indoor heat exchanger ThI R and indoor return air ThI A It detects at initial startup in cooling or dehumidifying mode after power ON In case of model 71 it cannot detect 3 Condition of Error displayed When the insufficient refrigerant amount is detected 3 times within 30 minutes In case of M...

Page 196: ...rigerant oil in compressor can be evaporated Check whether the electric leakage breaker conforms to high harmonic specifications As INV PAC units has inverter in order to prevent from improper operation be sure to use the breaker of high harmonic type Error code Remote controller LED Green Red Outdoor control PCB Outdoor inverter PCB 1 time flash Keeps flashing Yellow or Red LED Green Indoor contr...

Page 197: ...ime flash Keeps flashing Yellow or Red LED Green Indoor control PCB Stays OFF Keeps flashing Keeps flashing Content Stays off or 4 times flash Compressor startup failure 2 2 Is it model 200 or 250 Is the power transistor module OK YES From previous page Try to restart several times Does it start Note Several times restarting may recover it because liquid refrigerant migrated in the compressor coul...

Page 198: ...tection operation the compressor stops When it is restart automatically after 3 minutes it is detected 4 times within 15 minutes 4 Presumable cause Defective outdoor fan motor Defective outdoor control PCB Defective inverter PCB Anomalous power supply voltage Improper refrigerant amount and refrigerant circuit Defective compressor motor bearing Note Insulation resistance The unit is left for long ...

Page 199: ... Hole Opening Installation hole Installation hole Put through the wiring from the back side to the hole of the lower case Fit the lower case into the ceiling opening Make sure that the clearance between the convex part of the back of the lower case and the ceiling opening must be as equal as possible on both sides Using the two installation holes shown above fix the lower case onto the ceiling wit...

Page 200: ...ioner series set the indoor unit address with SW2 on the indoor unit PCB from 0 to F so as not to duplicate For VRF series set the indoor unit address with SW1 SW2 and SW5 2 on the indoor unit PCB from 000 to 127 so as not to duplicate KIT Restrictions on the thickness and length of wire Maximun total extension 600m Within 100m x 0 3 mm2 Within 200m x 0 5 mm2 Within 300m x 0 75mm2 Within 400m x 1 ...

Page 201: ...urface Operation Inspection lamp During operation Green failure Red Remote controller sensor ON OFF button Button to start stop the air conditioner FAN SPEED button Button to set the fan speed AIR CON No button Indicates the No of air conditioner which is connected MODE button Use to select the mode TEMP button Use to raise the setting temperature TEMP button Use to lower the setting temperature O...

Page 202: ...2 core wires or cables on site configuration 2 Maximum prolongation of remote controller wiring is 600m If the prolongation is over 100m change to the size below But the wiring in the remote controller case should be 0 3mm2 recommended to 0 5mm2 Change the wire size outside of the case according to wire connecting Waterproof treatment is necessary at the wire connecting section Be careful about co...

Page 203: ...portion of the bottom surface of the remote control and slightly twist it and the case is removed The remote controller cord can be extracted from the upper center After the thin part in the upper side of the remote controller upper case is scraped with a nipper or knife remove burr with a file The lower case of the remote controller is mounted to a flat wall with two accessory wood screws Connect...

Page 204: ...perature Return air temperature can be confirmed by the remote controller operation Press AIR CON NO button for over 5 seconds 88 blinks on the temperature setting indicator 88 blinks for approximately 2 seconds while data is read Then the return air temperature is displayed Example return air temperature 27 C blinking Note For the return air temperature in the normal case the return air temperatu...

Page 205: ...tor enabled offset temperature at 1 0 C 06 Remote controller thermistor 2 0 C At the time of heating in the case of remote controller thermistor enabled offset temperature at 2 0 C 07 Remote controller thermistor 3 0 C At the time of heating in the case of remote controller thermistor enabled offset temperature at 3 0 C 05 Ventilation setting 01 No ventilator connection 02 Ventilator links air con...

Page 206: ...e same procedures If the setting is finished proceed to Stop air conditioning and simultaneously press AIR CON NO and MODE buttons at the same time for over three seconds The function number 01 blinks in the upper right Press TEMP or TEMP button Select the function number Press MODE button Decide the function number In the case of selecting the remote controller function 01 06 The current setting ...

Page 207: ...egarded as installation failure and warranty may not be given 1 Remove the top panel of the outdoor unit 11 pcs of tapping screws Follow the law or regulation of the country where it is installed Do not alter the heater Lay down the heater so that the edge of the sheet metal does not damage the heater Bending radius must be bigger than 25mm Do not use the heater near flammable substances Be sure t...

Page 208: ... heat exchanger and align the end of heater with the end plate of heat exchanger Step 6 3 Remove the front panel 11 pcs of tapping screws Pull the panel straightforward so that the panel doesn t touch the fan blade Step 3 4 Remove the fan blade if necessary Note Do not rotate the axis of fan motor when removing the fan blade It may cause malfunction of the fan motor Step 4 ...

Page 209: ...ed by aluminum fin when fixing the heater with screw Step 7 9 Lay down the wiring on the same route of fan motor wiring and fix the wire with attached plastic band 2 places at the same place where the fan motor wiring is banded Step 9 12 Reasse Use Use Note This heat disconne Be sure t Especially Step 12 Note Be sure to cut the excess part of plastic band It may cause abnormal noise when hit by fa...

Page 210: ...he wiring route such as suction pipe check valve and check joint Step 12 3 Top panel Note 1 When reassembling the service panel take care not to damage the front panel with the edge 2 There are two different length of screws Be sure to use correct screw Long screw A used for Top panel other than fixing fan bracket Short screw B other place than A op right xcess Step 11 he cable lly A B 2 Service p...

Page 211: ...cy of continuous improvement we reserve the right to make changes in all specifications without notice C Because of our policy of continuous improvement we reserve the right to make changes in all specifications without notice C Copyright MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS LTD MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS LTD 16 5 Konan 2 chome Minato ku Tokyo 108 8215 Japan http www mhi mt...

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