- 25 -
[
II
Restrictions ]
Wiring method/address setting method
1) Indoor/outdoor transmission line
Daisy-chain terminals M1 and M2 on the terminal block for indoor-outdoor transmission line (TB3) on the outdoor
unit (OC), terminals M1 and M2 of the terminal block for indoor-outdoor transmission line (TB02) on the BC con-
troller (BC), and terminals M1 and M2 on the terminal block for indoor-outdoor transmission line (TB5) on each
indoor unit (IC). (Non-polarized 2-core cable)
Only use shielded cables.
[Shielded cable connection]
To ground the shielded cable, daisy-chain the ground terminal on the outdoor unit (OC), S terminals on the terminal
block (TB3) on the terminal block (TB1) on the BC controller (BC), and the S terminal on the terminal block (TB5)
on the indoor unit (IC).
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Connect terminals 1 and 2 on the terminal block for MA remote controller line (TB15) on the indoor unit (IC) to the
terminal block on the MA remote controller (MA). (Non-polarized 2-core cable)
MA remote controllers can be connected to the indoor units of type C or later.
[When 2 remote controllers are connected to the system]
When 2 remote controllers are connected to the system, connect terminals 1 and 2 of the terminal block (TB15) on
the indoor unit (IC) to the terminal block on the two MA remote controllers.
Set one of the MA remote controllers to sub. (Refer to MA remote controller function selection (4 [3]2.) or the in-
stallation manual for the MA remote controller for the setting method.)
[Group operation of indoor units]
To perform a group operation of indoor units (IC), daisy-chain terminals 1 and 2 on the terminal block (TB15) on all
indoor units (IC) in the same group, and then connect terminals 1 and 2 on the terminal block (TB15) on the indoor
unit on one end to the terminal block on the MA remote controller. (Non-polarized 2-core cable)
To perform a group operation of indoor units that have different functions, refer to [4] 2.
4) LOSSNAY connection
Connect terminals M1 and M2 on the terminal block (TB5) on the indoor unit (IC) to the appropriate terminals on
the terminal block (TB5) on LOSSNAY (LC). (Non-polarized 2-core cable)
Interlock operation setting with all the indoor units in the same system will automatically be made.
Refer to "[4] 2. Manual address setup for both indoor and outdoor units" in the following cases: performing an in-
terlock operation of part of the indoor units in the system with a LOSSNAY unit, using LOSSNAY alone without
interlocking it with any units, performing an interlock operation of more than 16 indoor units with a LOSSNAY unit,
or connecting two or more LOSSNAY units to indoor units in the same system.
5) Switch setting
No address settings required.
Pro
ce-
du-
res
Unit or controller
Address
setting
range
Setting method
Notes
Facto-
ry set-
ting
1
Indoor
unit
Main unit
IC
No settings
required.
-
Port number setting is re-
quired by an R2 system.
To perform a group opera-
tion of indoor units that
have different functions,
refer to [4] 2.
00
Sub unit
IC
2
LOSSNAY
LC
No settings
required.
-
00
3
MA
remote
controller
Main
remote
controller
MA
No settings
required.
-
Main
Sub
remote
controller
MA
Sub
remote
controller
Settings to be made ac-
cording to the remote con-
troller function selection
4
Outdoor unit
OC
No settings
required.
-
00
5
Auxiliary
unit
BC
controller
BC
Содержание PUHY-P168
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Страница 99: ... 90 III Outdoor Unit BC Controller Components 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...
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Страница 126: ... 117 VI Refrigerant Circuit 1 Refrigerant Circuit Figure 119 2 Principal Parts and Functions 126 ...
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Страница 134: ... 125 VI Refrigerant Circuit 3 CMB P104 and P108NU GB sub TH25 TH22 LEV3a CP Solenoid valves Block Check valves Block ...
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Страница 366: ... 357 IX Troubleshooting ...
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Страница 368: ... 359 X LED monitor display on the outdoor unit board 1 How to read the LED on the service monitor 361 ...
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