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[ II Restrictions ]
39- 39 -
HWE09080 GB
7. An example of a system with one heat source unit to which 2 or more LOSSNAY units are connected
(manual address setup for both indoor and heat source units) <PQRY>
(1) Sample control wiring
(2) Cautions
1) ME remote controller and MA remote controller cannot
both be connected to the same group of indoor units.
2) No more than 2 MA remote controllers can be connected
to a group of indoor units.
3) When the number of the connected indoor units is as
shown in the table below, one or more transmission
boosters (sold separately) are required.
To connect two transmission boosters, connect them in
parallel. (Observe the maximum number of connectable
indoor units that are listed in the specifications for each
heat source unit.)
The table above shows the number of transmission
boosters that is required by the system with three BC
controllers. For each BC controller that is subtracted
from the above-mentioned system, two additional indoor
units can be connected.
(3) Maximum allowable length
1) Indoor-heat source transmission line
Same as [5] 6.
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Same as [5] 6.
L3
BC
53
OC
51
TB7
S
TB3
TB02
S
IC
TB5
S
TB
15
12
01
IC
TB5
S
TB
15
12
02
A1 B2
MA
A1 B2
MA
LC
TB5
S
05
IC
TB5
S
12
TB
15
IC
TB5
S
TB
15
12
0403
LC
TB5
S
06
A1 B2
MA
* If the BC address overlaps any of the addresses that are assigned to either the OC, OS, or BS, use a different, unused address.
OC, OS, and BS addresses (lowest indoor unit address in the group plus +50) have higher priority than the BS address.
IC
TB5
S
12
TB
15
IC
TB5
S
TB
15
12
0807
A1 B2
MA
A1 B2
MA
M1M2M1M2
L11
L4 L5
L12 L13
OS
52
TB7
M1 M2
M1 M2
M1 M2
M1 M2
M1 M2
M1M2 M1M2 M1M2
M1M2M1M2M1M2
S
TB3
M1 M2
TB02
S
57
BS
L1 L2
GroupGroup
Group
Interlock operation with the ventilation unit
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
Number of transmission
booster (sold separately)
required
1 unit 2 units
When the P72 and P96 models are not in-
cluded in the connected indoor units
27 - 50
units
-
When the P72 or P96 model is included in
the connected indoor units
21 - 39
units
40 - 50
units