Mitsubishi Electric PUHY-HP144TSHMU-A Service Handbook page 37

[ II Restrictions ]
2. An example of a system with one outdoor unit to which 2 or more LOSSNAY units are connected
(manual address setup for both indoor and outdoor units)
(1) Sample control wiring
L1
Leave the male Leave the male
connector on connector on
CN41 as it is. CN41 as it is.
SW2-1 OFF SW2-1 OFF
OS
52
TB3
TB3 TB7
M1 M2 M1 M2 S M1 M2
(2) Cautions
1) M-NET remote controller and MA remote controller can-
not 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.
HWE0716A
L2
Group
IC
OC
01
51
TB5
TB7
M1M2 S
M1 M2 S
Group
IC
03
TB5
S
M1M2
- 28 -
L3
Group
IC
02
TB15 TB5 TB15
1 2 M1 M2 S 1 2
A B A B
MA MA
L12
IC
04
TB15 TB5 TB15
1 2 S 1 2
M1M2
A B
MA
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Same as [5] 1.
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Same as [5] 1.
Interlock operation with
the ventilation unit
L4
LC
05
TB5
M1 M2 S
L13
LC
06
TB5
S
M1M2
GB