Installing The Duct; Electric Wiring Work; Electrical Characteristics - Daikin FXDQ20NVE Installation Manual

8.

INSTALLING THE DUCT

Connect the duct supplied in the field.
Air inlet side
• Attach the duct and intake-side flange (field supply).
• Connect the flange to the main unit with accessory screws (in
20 or 24 positions).
• Wrap the intake-side flange and duct connection area with
aluminum tape or something similar to prevent air escaping.
CAUTION
When attaching a duct to the intake side, be sure to attach an air filter
inside the air passage on the intake side. (Use an air filter whose dust
collecting efficiency is at least 50% in a gravimetric technique.)
The included filter is not used when the intake duct is attached.
Flange
(Field supply)
Connection screw (7)
(accessory)
Aluminum tape
(Field supply)
Air inlet side
Air outlet side
• Connect the duct according to the air inside of the outlet-side
flange.
• Wrap the outlet-side flange and the duct connection area
with aluminum tape or something similar to prevent air
escaping.
CAUTION
• Be sure to insulate the duct to prevent condensation from
forming. (Material: glass wool or polyethylene foam, 25 mm
thick)
• Use electric insulation between the duct and the wall when
using metal ducts to pass metal laths of the net or fence
shape or metal plating into wooden buildings.
9.

ELECTRIC WIRING WORK

9-1 GENERAL INSTRUCTIONS
• Shut off the power before doing any work.
• All field supplied parts and materials, electric works must
conform to local codes.
• Use copper wire only.
• See also the "Wiring Diagram plate" attached to the control
box lid when laying electrical wiring.
• For details on hooking up the remote controller, refer to the
"REMOTE CONTROLLER INSTALLATION MANUAL"
• All wiring must be performed by an authorized electrician.
• This system consists of multiple indoor units. Mark each
indoor unit as unit A, unit B . . . , and be sure the terminal board
wiring to the outdoor unit and BS unit are properly matched. If
wiring and piping between the outdoor unit and an indoor unit
are mismatched, the system may cause a malfunction.
• Install a wiring interrupter or ground-fault circuit interrupter
for the power wiring.
• Make sure the earth resistance is no greater than 100Ù.
8
Insulation
material
Flange
Main unit
(Field supply)
Aluminum tape
(Field supply)
Air outlet side
• Do not the earth wire should come in contact with gas pipes,
water pipes, lightning rods, or telephone earth 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 lightning gets extremely high.
• To avoid short circuiting the power supply wire, be sure to
use insulated terminals.
• Do not turn on the power supply (wiring interrupter or ground-
fault circuit interrupter) until all other work is done.
9-2 LIST OF STANDARD WIRING EQUIPMENT
Power-related
Power supply wiring (including earth wire)
Model
Number
of units
20 · 25 · 32 · 40 type
50 type 1
63 type
Model
20 · 25 · 32 · 40 type
Sheathed vinyl cord
50 type
or cable
63 type
NOTES
1. If the wiring is in a place where people it can be easily
touched by people, install a ground-fault circuit interrupter to
prevent electric shock.
2. When using a ground-fault circuit interrupter, make sure to
select one useful also to protection against overcurrent and
short-circuit.
When using a ground-fault circuit interrupter only for earth
device, make sure to use a wiring interrupter together.
• The length of the transmission wiring and remote controller
wiring are as follows.
Length of the transmission wiring and remote controller wiring
Outdoor unit – Indoor unit
Indoor unit – Remote controller

9-3 ELECTRICAL CHARACTERISTICS

Units
Voltage
Model
Hz Volts
range
20 · 25 · 32 type
Min.
40 type
220- 198
50
240 Max.
50 type
264
63 type
20 · 25 · 32 type
Min.
40 type
198
60 220
Max.
50 type
242
63 type
MCA: Minimum Circuit Amps (A) MFA:Max. Fuse Amps (A)
KW: Fan motor output (kW)
Field
fuses
Wire Size
Follow local
15A H05VV-U3G
standards.
Transmission wiring
Remote controller wiring
Wire Size (mm
0.75 - 1.25
Max. 1000m
(Total wiring length: 2000m)
Max. 500m
Power supply Fan motor
MCA MFA KW FLA
0.9 0.062 0.7
1.0 0.062 0.8
15
1.0 0.13 0.8
1.1 0.13 0.9
1.0 0.062 0.8
1.1 0.062 0.9
15
1.3 0.13 1.0
1.4 0.13 1.1
FLA:Full Load Amps (A)
English
2 )