background image

English

9

11. WIRING EXAMPLE

11-1 HOW TO CONNECT WIRINGS 

Wire only after removing the control box lid as shown in 

the picture below, referring to view A or B depending on the 

type of unit.

CAUTION

Be sure to attach power supply wiring and earth wire to the 
control box with the clamp.

When doing the wiring, make sure the wiring is neat and 

does not cause the control box lid to stick up, then close the 

cover firmly. When attaching the control box lid, make sure 

you do not pinch any wires.

Outside the air conditioners, separate the weak wiring (remote 
controller and transmission wiring) and strong wiring (earth 
wire and power supply wiring) at least 50 mm so that they do 
not pass through the same place together. Proximity may 
cause electrical interference, malfunctions, and breakage.

A main switch or other means for disconnection, having a 

contact separation in all poles, must be incorporated in the 

fixed wiring in accordance with relevant local and national 

legislation.

Note that the operation will restart automatically if the main 

power supply is turned off and then turned back on again.

[ PRECAUTIONS ] 

Refer to the “REMOTE CONTROLLER INSTALLATION 

MANUAL” on how to install and lay the wiring for the remote 

controller.

See also the “Wiring Diagram plate” attached to the control 

box lid when laying electrical wiring.

Connect the remote controller and transmission wiring their 

respective terminal blocks.

CAUTION

• Do not, under any circumstances, connect the power sup-

ply wiring to the remote controller or transmission wiring 

terminal block. Doing so can destroy the entire system.

[ Connecting electrical wiring, remote controller wiring, 
and transmission wiring ] (Refer to the following picture)

• Power supply and Earth wiring

Remove the control box lid.

Next, pull the wires into the unit through the wiring through 

hole and connect to the terminal block (3P).

Be sure to put the part of the sheathed vinyl into the control 

box.

• Remote controller and transmission wiring

Pull the wires into the unit through the wiring through hole 
and connect to the terminal block (6P).
Be sure to put the part of the sheathed vinyl into the control 
box.

(Rear)

Wiring Diagram

Control box lid

Power supply wiring
Earth wire

*Remote controller wiring 

• Make sure to let a wire go through a wire penetration area.
• After wiring, seal the wire and wire penetration area to 

prevent moisture and small creatures from the outside.

• Wrap the strong and weak electric lines with the sealing 

material as shown in the figure below.
(Otherwise, moisture or small creatures such as insects from 
the outside may cause short-circuit inside the control box.)
Attach securely so that there are no gaps.

Wiring through 
hole

Sealing material

(accessory)

Wire

[How to adhere it]

Outside 

unit

Inside 

unit

Power supply 
wiring
Earth wire

Indoor PCboard 

(ASSY)

Clamps
(for preventing 
slippage)

*Transmission wiring
*Remote controller wiring

* Do not connect power 

supply wiring here.
That may cause malfunction

Control box

Control box

Transmission wiring / Remote contr. wiring

Indoor PCboard 

(ASSY)

Terminal block (6P)

Terminal block (3P)

Remote controller wiring
Transmission wiring

Wiring through hole

Power supply wiring
Earth wire

Clamps
(for preventing 
slippage)

OFF

WIRING

FORCED

REMOTE

CONTRL

TRANSMISSION

P

1

P

2

F

1

F

2

T

1

T

2

Wiring through
 hole

Summary of Contents for VRV SYSTEM FXNQ20A2VEB

Page 1: ...INSTALLATION MANUAL FXNQ20A2VEB FXNQ25A2VEB FXNQ32A2VEB FXNQ40A2VEB FXNQ50A2VEB FXNQ63A2VEB System Inverter Air Conditioners...

Page 2: ...A y es valorado positivamente por B de acuerdo con el Certificado C 06 Nota delineato nel A e giudicato positivamente da B secondo il Certificato C 07 A B C 08 Nota tal como estabelecido em A e com o...

Page 3: ...after taking into account strong winds typhoons or earthquakes Failure to do so during installation work may result in the unit falling and causing accidents Make sure that a separate power supply ci...

Page 4: ...by the hanger brackets Do not apply force to the refrigerant piping drain piping or flange parts Be sure to check the type of R410A refrigerant to be used before installing the unit Using an incorrect...

Page 5: ...with ducting and grill which can only be removed with the aid of tooling It shall be installed so that it gives adequate protection against touching the fan If a maintenance panel exists in the ducti...

Page 6: ...ust the unit to fit between the walls 3 Check the unit is horizontally level CAUTION Make sure the unit is installed level using a level or a plastic tube filled with water In using a plastic tube ins...

Page 7: ...to the outdoor unit Execute heat insulation work completely on both sides of the gas piping and the liquid piping Otherwise a water leakage can result sometimes Use insulation that can withstand tempe...

Page 8: ...id sealing pad 6 over the insulation for fitting 4 flare nut part CAUTION Be sure to insulate any field piping all the way to the piping connection inside the unit Any exposed piping may cause condens...

Page 9: ...ia in the sewage might enter the indoor unit through the drain piping and corrode the heat exchanger Do not twist or bend the drain hose 2 so that excessive force is not applied to it This type of tre...

Page 10: ...rth wires Gas pipes gas leaks can cause explosions and fire Water pipes they cannot be grounded if hard vinyl pipes are used Telephone earth wire and lightning rods the ground potential when struck by...

Page 11: ...ck Doing so can destroy the entire system Connecting electrical wiring remote controller wiring and transmission wiring Refer to the following picture Power supply and Earth wiring Remove the control...

Page 12: ...ntroller and working from the 2 positions pry off the upper part 2 loca tions Terminal block Tightening torque N m Remote controller transmission wiring terminal block 6P 0 79 0 97 Power supply wiring...

Page 13: ...E NO and SECOND CODE NO The Field Settings included with the remote controller lists the order of the settings and method of operation Lastly make sure the customer keeps the Field Settings manual alo...

Page 14: ...rouble An explanation of malfunction codes and the correspond ing trouble is provided in CAUTION FOR SERVICING of the outdoor unit If the display shows any of the following there is a possi bility tha...

Page 15: ...L PARTS X24A CONNECTOR WIRELESS REMOTE CONTROLLER X33A CONNECTOR ADAPTOR FOR WIRING X35A CONNECTOR POWER SUPPLY CONNECTOR X38A CONNECTOR MULTI TENANT WIRED REMOTE CONTROLLER R1T THERMISTOR AIR SS1 SEL...

Page 16: ...4P393318 1B 2015 03 Copyright 2014 Daikin...

Reviews: