Single Refrigerant System With Two Or More Lossnay Units - Mitsubishi Electric PUHY-HP200YNW-A Service Handbook

[2-7 Example System with an MA Remote Controller ]
2-7-2

Single Refrigerant System with Two or More LOSSNAY Units

(1) Sample control wiring
L1
Leave the male Leave the male
connector on connector on
CN41 as it is. CN41 as it is.
SW5-1 OFF SW5-1 OFF
OS2 OS1
53 52
TB3 TB7
TB3 TB7
M1 M2 M1 M2 S M1 M2 M1 M2
(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) A transmission booster is required in a system to which
more than 32 indoor units (26 units if one or more indoor
units of the 200 model or above is connected) are con-
nected.
Refer to the DATABOOK for further information about
how many booster units are required for a given system.
14
- chapter 2
L2
Leave the male
Group
connector on
CN41 as it is.
SW5-1 OFF
OC
51
TB3 TB7
S
M1 M2 M1 M2 S
L3
Group
IC
01
TB5 TB15 TB5
S 1 2 S
M1 M2 M1 M2
A B
MA
L12
Group
IC IC
03 04
TB5 TB15 TB5
M1 M2 S 1 2 M1 M2 S
A B
MA
m3
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Same as 2-7-1
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Same as 2-7-1
Interlock operation with
the ventilation unit
L4
LC
IC
02 05
TB15 TB5
1 2 S
M1 M2
A B
MA
L13
LC
06
TB15 TB5
1 2 M1 M2 S
BS_02_M