An Example Of A System To Which An Ma Remote Controller Is Connected - Mitsubishi Electric PQHY-P72ZLMU-A Service Handbook

[ II Restrictions ]

[5] An Example of a System to which an MA Remote Controller is connected

1. System with one heat source unit (automatic address setup for both indoor and heat source units) <PQHY>
(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
00 00
TB3 TB7 TB3
M1 M2 M1 M2 S 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 72 model or above is connected) are con-
nected.
4) Automatic address setup is not available if start-stop in-
put (CN32, CN51, CN41) is used for a group operation of
indoor units. Refer to "[5] 2. Manual address setup for
both indoor and heat source units".
5) To connect more than 2 LOSSNAY units to indoor units
in the same system, refer to the next section "[5] 2. An
example of a system with one heat source unit to which
2 or more LOSSNAY units are connected".
HWE15150
L2
Leave the male
Group
connector on
CN41 as it is.
SW5-1 OFF
OC
00
TB3
TB7 TB7
M1 M2 S M1 M2 M1 M2
S
Group
A B
MA
L3
Group
IC IC
00 00
TB5 TB15 TB5
M1 M2 S 1 2 M1 M2 S
A B A B
MA RC
L12
Group
IC IC
00 00
TB5 TB15 TB5
M1 M2 S 1 2 M1 M2 S
A B A B
MA MA
(3) Maximum allowable length
1) Indoor-heat source transmission line
Maximum distance (1.25mm
L1 +L2+L3+L4 200m[656ft]
L1 +L2+L11+L12+L13 200m[656ft]
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Maximum overall line length
2
(0.3 to 1.25mm [AWG22 to 16])
m1 200m [656ft]
m2+m3 200m [656ft]
m4+m5 200m [656ft]
- 28 -
Interlock operation with
the ventilation unit
L4
LC
00
TB15 TB5
1 2 M1 M2 S
A B
MA
L13
IC
00
TB15 TB5 TB15
1 2 M1 M2 S 1 2
A B
MA
m3
2
[AWG16] or larger)
GB