Mitsubishi Heavy Industries SC-BIKN-E, Technical Manual, Page: 17 / 20

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15
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Installation
5
Location of installation
Green
E1
E2
E10
6
Indicator display
1. When using the metal box (mounted on the indoor unit / mounted
on the back of the remote control):
(1) Mount the SL E board in the metal box using the locking
supports.
(2) Wiring should go through the provided grommet since then
through the wiring to the hole on the Metal box.
Secure the grommet after inserting the grommet into the
Metal box as shown in below figure, then tie the wiring at the
outlet of the unit using a binding band.
Connect grounding. Connect grounding for the power line to
Ground
1
, and grounding for the signal line to Ground
2
or
to the Ground on the indoor unit control box.
SL E board
Locking supports (4)
Binding band
Ground Ground
Screw for Ground (2)
When installed outside the indoor unit, put the metal cover on.
When installed on the back of the remote control, mount it
directly on the remote control bottom case.
Install the device at the location where there are no electromagnetic waves nor where there is water and dust. The specified
temperature range of the device is 0 to 40˚C. Install the device at the location where the ambient temperature stays within the
range. If it exceeds the specification, make sure to provide solution such as installing a cooling fan. When used outside of the
range, it may cause abnormal operation.
Check the LED 3 (green) and LED 2 (red) on the SL E board for flashing.
SL E board LEDs
Red
Off
Off
One flash
Two
flashes
Three
flashes
Four
flashes
Off
Flashing
Flashing
Flashing
Flashing
Flashing
Flashing
Off
Inspection mode
Normal communication
•
Disconnection in the remote control communication line (X or Y)
•
Short-circuit in the remote control communication line (between X and Y)
•
Faulty indoor unit remote control power
•
Faulty remote control communication circuit
•
Faulty CPU on SL E board
•
Disconnection in the Super Link signal line (A or B)
•
Short-circuit in the Super Link signal line (between A and B)
•
Faulty Super Link signal circuit
•
Faulty address setting for the SL E board
(Set up the address for more than 128)
•
SL E board parent not set up when used without a remote control
•
Faulty remote control communication circuit
•
Address overlapping for the SL E board and the Super Link network connected indoor unit
•
Number of connected devices exceeds the specification for the multiple indoor unit control
Display on the integrated
network control device
No corresponding unit
number