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7

English

<Method of wiring for the wiring between indoor unit 

and outdoor unit, the earth wiring and the power supply 

wiring>
(1)  Remove the front panel (lower).
(2)  Fix the each wire on the control box with the attached 

clamp.

(3) 

For wiring specifications, refer to the [DETAILS OF 

STANDARD DEVICES].

 CAUTION

Apply putty or insulation material (Field supply) without 
any clearance on the wiring intake section to prevent small 
animals from entering the unit. 
(If small animals such as insects enter the inside of the unit, it 
may cause short circuit in the control box.)

Connect the wire securely using designated wire and fix it 

with attached clamp without applying external pressure on 
the terminal parts. 
Make sure the wiring and the control box lid do not stick up 

above the structure, and close the control box lid firmly.

8-1  

REMOVE THE FRONT PANEL (LOWER)

When removing the front panel (lower), there is the control 
box.

Front panel (lower)

Screw

Remove the screw attached 
front panel (lower).

Front panel 

(lower)

8-2  

EXTERNAL WIRING METHOD

<125-250 type>
Wiring from right side

Earth terminal

Control  box

Pass the attached clamp through 

the resin clamp, and bundle each 

wiring in one and fix them.

Terminal block for the 

wiring between indoor 

unit and outdoor unit

Terminal block 

for power 

supply wiring

Earth terminal for shield wire

Wiring from left side

Earth terminal

Control  box

Pass the attached clamp through 

the resin clamp, and bundle each 

wiring in one and fix them.

Terminal block for the 

wiring between indoor 

unit and outdoor unit

Terminal block 

for power 

supply wiring

Earth terminal for 
shield wire

<400 · 500 type>
Wiring from right side

Earth terminal

Control  box

Pass the attached clamp through 

the resin clamp, and bundle each 

wiring in one and fix them.

Terminal block for the 

wiring between indoor 

unit and outdoor unit

Terminal block for 

power supply wiring

Earth terminal for 
shield wire

Wiring from left side

Earth terminal

Control  box

Pass the attached clamp through 

the resin clamp, and bundle each 

wiring in one and fix them.

Terminal block for the 

wiring between indoor 

unit and outdoor unit

Terminal block for 

power supply wiring

Earth terminal 
for shield wire

8-3  EXAMPLE OF WIRING

• 

The control panel is the standard built-in.

Ex1. When using in pairs

Prohibited

Indoor unit A

OUT-OUT

Outdoor unit

F1 F2 F1 F2

IN-OUT

Control box

Control panel

Earth

Power 

supply

Branch switch 

Overcurrent 

circuit breaker

L2L3 N

L1

P1

or

P

P2

or

N

F1F2 T1T2

The wiring between indoor 

unit and outdoor unit

Never to connect 

high-voltage electricity such 

as power supply cables.

Ex2. For multiple indoor units

Prohibited

Final indoor 

unit

Indoor unit B

Outdoor unit

IN-OUT

Control box

OUT-OUT

Indoor unit A

Earth

Control panel

Control panel

Control panel

Power 

supply

Branch switch 

Overcurrent 

circuit breaker

F1

F2 F1

F2

The wiring between indoor 

unit and outdoor unit

The wiring between indoor 

unit and indoor unit

P1

or

P

P2

or

N

F

1

F

2

T

1

T

2

P1

or

P

P2

or

N

F

1

F

2

T

1

T

2

P1

or

P

P2

or

N

F

1

F

2

T

1

T

2

Earth

Earth

Never to connect 

high-voltage 

electricity such as 

power supply cables.

L2 L3 N

L1

L2 L3 N

L1

L2 L3 N

L1

 CAUTION

Do not have low-voltage wires (wiring between units) and other 
high-voltage run through the same locations, and there must 
be min. 50 mm distance between wires outside of the unit. 
Or it may cause a malfunction or a breakdown of the unit by 
receiving electrical noise (external noise).

01_EN_3P345056-4F.indd   7

9/3/2015   15:00:26

Summary of Contents for FXVQ125MY1

Page 1: ...S Floor standing duct type FXVQ125MY1 FXVQ200MY1 FXVQ250MY1 FXVQ400MY1 FXVQ500MY1 FXVQ500MY16 SYSTEM Air Conditioners CAREFULLY READ THESE INSTRUCTIONS BEFORE INSTALLATION KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE ...

Page 2: ...out the specified installation work in consideration of strong winds typhoons or earthquakes Improper installation may result in an accident such as air conditioner falling Make certain that all electrical work is carried out by qualified personnel according to the applicable legislation note 1 and this installation manual using a separate circuit In addition even if the wiring is short make sure ...

Page 3: ...ap Insulation for Drain plug Clamp Hanging bolt for fan motor Quantity 1 pc 125 250 type For each 1 pc 400 500 type 1 pc 1 pc 3 pcs 1 pc Shape Gas piping Liquid piping only 500MY16 Gas piping Location Partition plate Name Bolts for flanges Quantity 14 pcs 125 200 type 30 pcs 250 type 18 pcs 400 type 36 pcs 500 type Shape M8 20 Location Partition plate However 2 bolts and 2 nuts are used for flange...

Page 4: ... control panel part Make sure to sling over the hanger 4 INSTALLATION SITE Note Do not apply force on the resin parts in case of carrying the indoor unit when and after unpacking 1 Select an installation site where the following conditions are satisfied and obtain the customer s approval before installation The foundation is strong enough to support the weight of the unit and the floor is flat to ...

Page 5: ... 3 mm displacement per 1 m 5 3 TENSION OF V BELT Tension of a V belt must meet the deflection load W as shown Calculate the required deflection length L by the equation 1 its tolerance must be within the range as below C L 1 Deflection load L 0 016 C mm C Distance between the shafts of the pulley mm W Types of V belt Deflection load W N A type 13 7 20 6 B type 22 6 34 3 Note It is recommended to ch...

Page 6: ...ION PIPING See the following table for the Processing connection piping For right side piping replace the partition bush fixed on the right side panel with the bush for hole fixed on the left side panel Left side piping connection Right side piping connection Piping on liquid side 125 250 type Pass the piping from the hole on the left side into the unit conduct sleeve flare process and brazed conn...

Page 7: ...t Drain plug Indoor unit Downward inclination 1 100 or more 50 mm or more Drain plug cap accessories 100 mm or more Drain piping for Left side connection CAUTION The connection of the drain piping Do not directly connect the drain piping to sewerage which odor may smell like ammonia Sewerage may contain it which may pass through the drain piping and result in corrosion of the indoor unit heat exch...

Page 8: ... type Wiring from right side Earth terminal Control box Pass the attached clamp through the resin clamp and bundle each wiring in one and fix them Terminal block for the wiring between indoor unit and outdoor unit Terminal block for power supply wiring Earth terminal for shield wire Wiring from left side Earth terminal Control box Pass the attached clamp through the resin clamp and bundle each wiri...

Page 9: ...al heat radiation Fig 2 Use wires the same in size if the air conditioner is in simultaneous multi operation Abnormal heating may occur if the wirings are not tightened securely Use the required wirings connect them securely and fix these wirings securely so that external force may not apply to the terminals Use a proper screw driver for tightening the terminal screws If an improper screw driver i...

Page 10: ... when setting by group 4 Press the upper button and select FIRST CODE NO 5 Press the lower button and select the SECOND CODE NO 6 Press the button once and the present settings are SET 7 Press the TEST button to return to the NORMAL MODE SETTING TEST UNIT NO 3 4 5 6 7 1 2 UNIT NO MODE NO SECOND CODE NO FIRST CODE NO FIELD SET MODE Note 1 Setting is carried out in the group mode however set the mod...

Page 11: ...OPERATION 1 Confirm that the control box lid of the indoor units and the outdoor unit are closed 2 Perform the test run according to the installation manual attached to the outdoor unit If the operation lamp on the control panel is flashing it indicates malfunction Check the error code of the liquid crystal display and the malfunction source For the error code and the details refer to the operatio...

Page 12: ...3P345056 4F EM13A004B 1511 HT ...

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