Table of Contents
10.4. Field setting
10.4.1 Address setting
• For the basic setting method, refer to "8.2. Address setting".
• When merging 2 or 4 branches and then manually setting the address, set only the
rotary switch where the transmission cable is connected.
2-branches merging
Branches that
PC board
can be merged
Branches A and B *1
For
Branches C and D *2
branches
Branches A and B
A-D
Branches C and D
Branches E and F *1
For
Branches G and H *2
branches
Branches E and F
E-H
Branches G and H
Branches I and J *1
For
Branches K and L *2
branches
I-L
Branches I and J
Branches K and L
*1) For detailed description about the connection, refer to "Connection type 1" above.
*2) For detailed description about the connection, refer to "Connection type 2" above.
*3) For detailed description about the connection, refer to "Connection type 3" above.
4-branches merging
Branches that
PC board
can be merged
For
branches
Branches A to D
A-D
For
branches
Branches E to H
E-H
For
branches
Branches I to L
I-L
10.4.2 Function setting
• For the basic setting method, refer to "8.3. Function setting".
• To merge 2 or 4 branches with a function setting, use the same "DIP switch SET2"
setting on all the branches being merged.
2-branches merging
Branches that
PC board
can be merged
Branches A and B *1
For
Branches C and D *2
branches
A-D
Branches A and B
Branches C and D
Branches E and F *1
For
Branches G and H *2
branches
E-H
Branches E and F
Branches G and H
Branches I and J *1
For
Branches K and L *2
branches
I-L
Branches I and J
Branches K and L
*1) For detailed description about the connection, refer to "Connection type 1" above.
*2) For detailed description about the connection, refer to "Connection type 2" above.
*3) For detailed description about the connection, refer to "Connection type 3" above.
En-15
Rotary switch setting
Set the branch B switch only
Set the branch D switch only
Set the branch B and D switches only
*3
Set the branch F switch only
Set the branch H switch only
*3
Set the branch F and H switches only
Set the branch J switch only
Set the branch L switch only
*3
Set the branch J and L switches only
Rotary switch setting
Use branch D setting only
Use branch H setting only
Use branch L setting only
DIP switch SET2 setting
Use the same switch setting on branches
A and B
Use the same switch setting on branches
C and D
Use the same switch setting on branches
A and B
*3
Use the same switch setting on branches
C and D
Use the same switch setting on branches
E and F
Use the same switch setting on branches
G and H
Use the same switch setting on branches
E and F
*3
Use the same switch setting on branches
G and H
Use the same switch setting on branches
I and J
Use the same switch setting on branches
K and L
Use the same switch setting on branches
I and J
*3
Use the same switch setting on branches
K and L
4-branches merging
Branches that
PC board
can be merged
For
branches
Branches A to D
A-D
For
branches
Branches E to H
E-H
For
branches
Branches I to L
I-L
11. TEST RUN
11.1. Test run using outdoor unit (PC board)
• Refer to the Installation Manual for the outdoor unit to perform the test run using the
outdoor unit.
11.2. Test run using remote controller
• Refer to the Installation Manual for the remote controller to perform the test run
using the remote controller.
12. CHECK LIST
Pay special attention to the check items below when installing the RB unit(s). After
installation is complete, be sure to check the following check items again.
CHECK ITEMS
Has the RB unit been installed
correctly?
Has there been a check for gas
leaks (refrigerant pipes)?
Has heat insulation work been
completed?
Is the voltage of the power source
the same as that indicated on the
label on the RB unit?
Is the address setting correctly
configured?
Is DIP switch S300 correctly set?
Are the wires and pipes all
connected completely?
Is the RB unit earthed (grounded)?
Is the connection cable the specified
thickness?
13. INDICATOR LAMP STATUS
Power indi-
Error
cator lamp
indicator lamp
(Green)
(Red)
Lit when the power is turned on.
(Lit)
The wiring is incorrect. The "IN/U" terminal of RB
unit and outdoor unit transmission terminal are
connected with the transmission cable. Correctly
(Lit)
(Lit)
connect the wiring. When re-wiring, you must turn
off the power.
●
There is a fault with the communication board or
(Flashing)
the main board.
(Lit)
●
: 0.1s ON / 0.1s OFF
DIP switch SET2 setting
Use the same setting value on branches
A, B, C and D
Use the same setting value on branches
E, F, G and H
Use the same setting value on branches I,
J, K and L
CHECK
If not performed correctly
BOX
Vibration, noise, RB unit may
drop
No cooling, No heating
Water leakage
No operation, heat or burn
damage
No operation
No cooling. No heating.
Abnormal noise heard.
No operation, heat or burn
damage
Short circuit
No operation, heat or burn
damage
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