An Example Of A System To Which Both Ma Remote Controller And Me Remote Controller Are Connected - Mitsubishi Electric PQHY-P200YLM-A Service Handbook

[ II Restrictions ]

[7] An Example of a System to which both MA Remote Controller and ME Remote Controller are connected

1. PQHY
(1) Sample control wiring
(2) Cautions
1) Be sure to connect a system controller.
2) ME remote controller and MA remote controller cannot
both be connected to the same group of indoor units.
3) Assign to the indoor units connected to the MA remote
controller addresses that are smaller than those of the in-
door units that are connected to the ME remote control-
ler.
4) No more than 2 ME remote controllers can be connected
to a group of indoor units.
5) No more than 2 MA remote controllers can be connected
to a group of indoor units.
6) Do not connect the terminal blocks (TB5) on the indoor
units that are connected to different heat source units
with each other.
7) Replace the power jumper connector of the control board
from CN41 to CN40 on only one of the heat source units
(not required if power to the transmission line for central-
ized control is supplied from a controller with a power
supply function, such as GB-50ADA).
8) Provide an electrical path to ground for the S terminal on
the terminal block for centralized control on only one of
the heat source units.
9) A transmission booster must be connected to a system
in which the total number of connected indoor units ex-
ceeds 20.
10) A transmission booster is required in a system to which
more than 16 indoor including one or more indoor units
HWE15060
L11
Leave the male Leave the male Move the male connector
connector on connector on
from CN41 to CN40.
CN41 as it is. CN41 as it is.
SW5-1 OFF ON
SW5-1 OFF ON SW5-1 OFF ON
OS2 OS1
53 52
TB3 TB3
M1M2 M1M2 M1M2
TB7 TB7
M1M2 S M1M2 S M1M2
To be left
To be left
unconnected
unconnected
L21
Leave the male Leave the male Leave the male
connector on connector on connector on
CN41 as it is. CN41 as it is. CN41 as it is.
SW5-1 OFF ON SW5-1 OFF ON SW5-1 OFF ON
OS2 OS1
56 55
TB3 TB3
M1M2 M1M2 M1M2
TB7 TB7
M1M2 S M1M2 S M1M2
To be left
To be left
unconnected
unconnected
L12
Group
OC
IC
01
51
TB5 TB15
TB3
M1 M2 S 1 2 M1 M2
TB7
S
A B
To be connected
MA
L22
Group Group
OC IC
03
54
TB5 TB5
TB15
TB3
M1 M2 S 1 2 M1 M2
TB7
S
A B
A B
To be left
unconnected
104
MA
RC
Note1 When only the LM adapter is connected,
Note2 LM adapters require the power supply
Note1
System controller
A B S
of the 200 model or above are connected.
Refer to the DATABOOK for further information about
how many booster units are required for a given system.
11) When a power supply unit is connected to the transmis-
sion line for centralized control, leave the power jumper
connector on CN41 as it is (factory setting).
(3) Maximum allowable length
1) Indoor-heat source transmission line
Same as [5] 3.
2) Transmission line for centralized control
Same as [5] 4.
3) MA remote controller wiring
Same as [5] 1.
4) ME remote controller wiring
Same as [5] 1.
5) Maximum line distance via heat source unit
(1.25mm
Same as [5] 4.
- 56 -
Group
IC IC
02 06
TB5 TB15 TB5 TB15
S 1 2 M1 M2 S 1 2
A B
106
RC
IC IC
04 05
TB15 TB5 TB15
S 1 2 1 2
M1 M2 S
leave SW5-1 to OFF (as it is).
capacity of single-phase AC 208/230V.
2
or larger)
GB