Mitsubishi SCM40ZS-S Technical Manual page 300

(C) Exposed installation
Use the following procedure when installing the case with the wiring exposed.
Band (enclosed)
Hole
Lower case
① Cut off the thin section on the side of the upper case with a pair of nippers or a knife,
and remove the burrs with a le, etc. (The wiring is passed through this section.)
② Pass the enclosed band through the wiring outlet hole on the lower case.
③ Use on of the light detection adaptor installation methods (A) or (B) explained in section
3, and x the lower case onto the wall. Do not pass the wiring through the hole on the
lower case.
④ Fix the wiring using the band while leaving the wiring length from the band xing
section to the end of the wiring connector at 100mm or more.
⑤ Connect the wiring with the wiring protruding front the upper case using a connector.
⑥ Pass the connected connector and the excess wiring through the hole on the lower
case.
⑦ Fit the upper case onto the lower case, and tighten the screws.
⑧ Adequately x the wiring with the enclesed cord clamp.
④Remote control
Installation of the control holder
Caution
DO NOT install it on the following places
1) Places exposed to direct sunlight
2) Places near heat devices
3) High humidity places
4) Hot surface or cold surface enough to generate
condensation
5) Places exposed to oil mist or steam directly
6) Uneven surface
Installation tips for the remote control holder
• Adjust and keep the holder upright.
• Tighten the screw to the end to avoid scratching
the remote control.
• DO NOT attach the holder to plaster wall.
How to insert batteries
① Detach the back lid.
② Insert the batteries. (two AAA batteries)
③ Reattach the back lid.
⑤Cooling test run operation
After safety con rmation, turn on the power.
Transmit a cooling operation command with wireless remote control, while the backup
button on the receiver is pressed.
If the backup button on the receiver is pressed during a test run, it will end the test run.
If you cannot operate the unit properly during a test run, please check by consulting with
inspection guides on the wiring diagram of outdoor units.
Back-up button
CHECK MODE
FILTER TIMER RUN/
CHECK
Cord clamp
Wiring
Fix with band
Hole
Upper case
Lower case
Holder for
remote
control
Wood screw
Ensure the
correct polarity
when inserting.
ON/
OFF
CHECK
CHECK
⑥Setting of wireless remote control and receiver
(A) Methods of avoiding the malfunction due to the mixed communication
Do both procedures ① and ②.
This setting is to avoid the mixed communication with other household electric
appliances or the mixed communication when two receivers are located closely.
①Setting change of the wireless remote control
Pressing ACL and AIRFLOW button at the same time or inserting the batteries
with pressing AIRFLOW button will customize the signal.
Note *When the batteries are removed, the setting will return to the default setting.
Make sure to reset it when the batteries are replaced.
②Setting the PCB of the receiver
Turn SW1-1 off.
Wireless remote control
Setting to
avoid mixed
communication.
(B) Control plural indoor units with one remote control
Up to 16 indoor units can be connected.
①Connect the XY terminal with 2-core wire.
As for the size, refer to the following note.
②For Packaged air-conditioner series, set the
indoor unit address with SW2 on the indoor
unit PCB from [0] to [F] so as not to duplicate.
Terminal block
Indoor unit (1)
Address (0)
KIT
Remote control
③For VRF series, set the indoor unit address with SW1, SW2 and SW5-2 on the
indoor unit PCB from [000] to [127] so as not to duplicate.
(C) Master/Slave setting when using plural remote control
Up to two receivers can be installed in one indoor unit group.
Indoor unit
Remote control line
(Non-polarized)
RCN-KIT RCN-KIT
SW1[Master] SW1[Slave]
299
- -
'16 • SCM-T-199
PCB of the receiver
SW1-1
(Customized signal
SW1-4
setting to avoid
(Auto restart)
mixed communication)
SW1-2
(Receiver master/slave
setting)
Customized signal setting to
SW1-1
avoid mixed communication
SW1-2 Receiver master/slave setting
SW1-4 Auto restart
Restrictions on the thickness and length of wire
(Maximun total extension 600m.)
Standard
Indoor unit (2) Indoor unit (16)
Address (1) Address
Switch Setting
ON
SW1-2
OFF
O N : N o r m a l
O F F : R e m o t e
O N : M a s t e r
O F F : S l a ve
O N : Va l i d
O F F : I n va l i d
: Default setting
Within 100m x 0.3 mm 2
Within 200m x 0.5 mm 2
Within 300m x 0.75mm 2
Within 400m x 1.25mm 2
Within 600m x 2.0 mm
2
( F )
Function
Master
Slave