System With A Connection Of System Controller To Indoor-Outdoor Transmission Line - Mitsubishi Electric PURY-M200YNW-A1 Service Handbook

[2-7 Example System with an MA Remote Controller ]
2-7-5 System with a Connection of System Controller to Indoor-Outdoor
Transmission Line
(1) Sample control wiring
CN41 CN40 Replace
SW5-1 OFF ON
OC
51
TB3
M1 M2
TB7
M1 M2 S
Leave the male
connector on
CN41 as it is.
SW5-1 OFF ON
OC
54
TB3
M1 M2
TB7
M1 M2
S
Not
Connect
(2) Cautions
1) ME remote controller and MA remote controller cannot both be con-
nected 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) Do not connect the terminal blocks (TB5) on the indoor units that are
connected to different outdoor units with each other.
4) Replacement of male power jumper connector (CN41) must be per-
formed only on one of the outdoor units.
5) Provide grounding to S terminal on the terminal block for transmis-
sion line for centralized control (TB7) on only one of the outdoor
units.
6) A maximum of three system controllers can be connected to the in-
door-outdoor transmission line. (AE-200, AG-150A, GB-50ADA, or
G(B)-50A are not connectable.)
7) When the total number of indoor units exceeds 20 (12 if one or more
indoor units of the 200 model or above is connected), it may not be
possible to connect a system controller to the indoor-outdoor trans-
mission line.
8) 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 outdoor unit.)
When the W/WP/WL200 and
W/WP/WL250 models are not included in
the connected indoor units
When the W/WP/WL200 and
W/WP/WL250 models are included in the
connected indoor units
BS_02_L
Group
HB
IC
52
01
TB3 TB5 TB15
M1 M2 S
M1 M2 S 1 2
Connect
A B
1 2
MA
L22
Group
HB
IC
55
04
TB3
TB5
TB15
M1 M2 S
M1 M2
S 1 2
A B
Note1
1 2
System controller
MA
A B S
Number of transmission boost-
er (sold separately) required
1 unit 2 units
25 - 50 units -
19 - 37 units 38 - 50 units
Interlock operation with
the ventilation unit
L12
Group Group
IC IC
02 03
TB5 TB15 TB5
M1 M2 S 1 2 M1 M2 S
A B
1 2
MA
Group
IC IC
05 06
TB5 TB15 TB5 TB15
M1 M2
S 1 2 M1 M2 S 1 2
A
1
MA
m3
Note1 LM adapters cannot be connected to the
indoor-outdoor transmission line.
The left table shows the number of transmission boosters that is re-
quired by the system with four HBCs. For each HBC added or sub-
tracted, subtract or add two indoor units.
Refer to the DATABOOK for further information about how many
booster units are required for a given system.
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
L12 200m [656ft]
L22 200m [656ft]
L25 200m [656ft]
The maximum piping length between OC and HB is 150 m.
2) Transmission line for centralized control
L31 200m [656ft]
3) MA remote controller wiring
Same as 2-7-1
4) Maximum line distance via outdoor unit
2
(1.25mm [AWG16] or larger)
L25+L31+L12 1000 m [3280ft] (500 m [1640ft])
L12+L31+L22 1000 m [3280ft] (500 m [1640ft])
*1 If a given system includes one or more unit or remote controller
that does not support the maximum allowable cable distance of
1000 m [3280 ft], the maximum allowable cable distance in the
system will be 500 m [1640 ft]. Refer to the latest catalog for in-
formation on which units and remote controllers support the max-
imum allowable cable distance of 1000 m [3280 ft].
LC
07
TB15 TB5
1 2 M1 M2 S
A B
1 2
MA
LC
08
TB5
M1 M2 S
B
2
2
[AWG16] or larger)
*1
*1
chapter 2 -
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