FXMQ50-125P7VEB9
VRV System air conditioners
3P468515-4 – 12.2016
Installation and operation manual
6
First perform electric wiring work as instructed in
and how to set the remote controller as explained in
"Wiring example and how to set the remote controller" on page 7
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
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 unit body 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.
■
Attach the earth leakage circuit breaker and fuse to the power
supply line.
■
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.
■
This system consists of multiple indoor units. Mark each indoor
unit as unit A, unit B..., and be sure the terminal block 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.
■
Be sure to ground the air conditioner.
■
Do not connect the ground wire to:
-
gas pipes: might cause explosions or fire if gas leaks.
-
telephone ground wires or lightning rods: might cause
abnormally high electric potential in the ground during
lightning storms.
-
plumbing pipes: no grounding effect if hard vinyl piping is
used.
■
Make sure electrical wires are stripped
equally.
Electrical characteristics
MCA: Min. circuit Amps (A)
MFA: Max. Fuse Amps (A)
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 crosshead screw-
driver
1
Switch box cover
2
Transmission wiring port
3
Power supply 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 1
11
Power supply terminal board
12
Transmission wiring between units
13
Indoor PC board 2
14
Indoor PC board 3 (only for 50~125 units)
1
1
Drain plug
1
2
1
Drain plug
2
Crosshead screwdriver
Model
Hz
Volts
Voltage range
Power supply
MCA
MFA
20
50/60
220-240/220
±10%
0.6
16 A
25
0.6
32
0.6
40
1.6
50
1.4
63
1.4
80
1.7
100
2.3
125
2.9
NOTE
For details, refer to "Electrical data" in the technical
data book.
