Installation and operation manual
5
FXSQ20~125M8V3B
VRV System air conditioners
4PW25083-1C
When electric wiring work is finished
Check drainage flow during COOL running, explained in
When electric wiring work is not finished
Remove the switch box cover and connect the single-phase power
supply and the remote controller to the terminals. (Refer to
for switch box attachment/detachment.)
(Refer to
and
Next, press the inspection/test operation button
on the remote
controller. The unit will engage the test operation mode. Press the
operation mode selector button
until selecting fan operation
. Then, press the on/off button
. The indoor unit fan and drain
pump will start up. Check that the water has drained from the unit.
Press
to go back to the first mode.
E
LECTRIC
WIRING
WORK
General instructions
■
All field supplied parts and materials and electric works must
conform to local codes.
■
Use copper wire only.
■
Follow the "Wiring diagram" attached to the switch box cover to
wire the outdoor unit, indoor units and the remote controller. For
details on hooking up the remote controller, refer to the
"Installation manual of the remote controller".
■
All wiring must be performed by an authorized electrician.
■
A circuit breaker capable of shutting down power supply to the
entire system must be installed.
■
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.
Electrical characteristics
MCA: Min. circuit Amps (A)
MFA: Max. Fuse Amps (A)
KW: Fan Motor Rated Output (kW)
FLA: Full Load Amps (A)
Specifications for field supplied fuses and wire
Allowable length of transmission wiring between indoor and outdoor
units, and between the indoor unit and the remote controller is as
follows:
1.
Outdoor unit - indoor unit: max. 1000 m (total wiring length: 2000 m)
2.
Indoor unit - remote controller: max 500 m
Caution for drain socket
Do not remove the drain pipe plug. Water might leak out.
The drain outlet is only used to discharge water if the drain
pump is not used or before maintenance. Gently put in and
out the drain plug. Excessive force may deform the drain
socket of the drain pan.
■
Pulling out the plug
Do not wiggle the plug up and down
■
Pushing in the plug
Set the plug and push it by using a Philips screwdriver
1
Switch box cover
2
Power supply wiring port
3
Transmission wiring port
4
Wiring diagram
5
Switch box
6
Plastic clamp
7
Remote controller wiring
8
Terminal board for unit transmission wiring
9
Power supply wiring
10
Indoor PC board
11
Power supply terminal board
12
Earth screw
13
Transmission wiring between units
14
Adaptor for PC board
1
1
Drain plug
1
2
1
Drain plug
2
Philips screwdriver
TEST
TEST
Model
Hz
Volts
Voltage range
FXSQ20~125
50
230
min. 198-max. 264
power supply
Fan motor
Model
MCA
MFA
KW
FLA
FXSQ20~32
0.5
16 A
0.05
0.4
FXSQ40
0.6
16 A
0.065
0.5
FXSQ50
0.9
16 A
0.085
0.7
FXSQ63
1.1
16 A
0.125
0.9
FXSQ80
1.3
16 A
0.135
1.0
FXSQ100
1.5
16 A
0.135
1.2
FXSQ125
2.0
16 A
0.225
1.6
NOTE
For details, refer to "Electrical data".
Power supply wiring
Model
Field fuses
Wire
Size
FXSQ20~125
16 A
H05VV-U3G
Local codes
Model
Wire
Size
FXSQ20~125
Sheathed wire (2)
0.75-1.25 mm
2
NOTE
For details, refer to
