Mitsubishi Electric PURY-HP144, Service Handbook

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[2-7 Example System with an MA Remote Controller ]
HWE18220_GB
chapter 2 -
13
2 Restrictions
2-7 Example System with an MA Remote Controller
2-7-1 Single Refrigerant System (Automatic Indoor/Outdoor Address Startup)
(1) Sample control wiring
(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) 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 par-
allel. (Observe the maximum number of connectable indoor
units that are listed in the specifications for each outdoor
unit.)
Œ
The table above shows the number of transmission boost-
ers that is required by the system with three BC controllers.
For each BC controller added or subtracted, subtract or add
two indoor units.
4) Automatic address setup is not available if start-stop input
(CN32, CN51, CN41) is used for a group operation of indoor
units or when multiple indoor units with different functions
are grouped in the same group. Refer to the following
page(s). [2-7-2 Single Refrigerant System with Two or More
LOSSNAY Units]
5) For information about connecting two or more LOSSNAY
units to a system, refer to the following page(s). [2-7-2 Sin-
gle Refrigerant System with Two or More LOSSNAY Units]
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
2
[AWG16] or larger)
L1 +L2+L3+L4+L5 200m[656ft]
L1 +L2+L3+L11+L12+L13 200m[656ft]
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Maximum overall line length
(0.3 to 1.25mm
2
[AWG22 to 16])
m1 200m [656ft]
m2+m3 200m [656ft]
m4+m5 200m [656ft]
*When connecting PAR-31MAA or MA Simple remote
controller, use sheathed cables with a minimum thick-
ness of 0.3 mm
2
.
IC
TB5
M1M2 M1M2 M1M2
M1M2 M1M2 M1M2
S
TB15
1 2
00
IC
TB5
S
TB15
1 2
00
A1 B2
MA
A1 B2
MA
A1 B2
RC
LC
TB5
S
00
IC
TB5
S 1 2
TB15
IC
TB5
S
TB15
1 2
00 00
IC
TB5
S
TB15
1 2
00
A1 B2
MA
A1 B2
MA
A1 B2
MA
Group Group
Group Group
A1 B2
MA
m1
L11
m2
L4 L5
L12 L13
m3
m5
m4
Interlock operation with
the ventilation unit
*1. When BS is connected to the system,
automatic address setup is not available.
BC
00
OC
00
TB7
M1 M2 S
TB3
OS
00
TB7
M1 M2 M1 M2 M1 M2 S
TB3
TB02
M1 M2 S
*1
BS
TB02
00
S M1M2
L3 L1 L2
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
Number of transmission booster
(sold separately) required
1 unit 2 units
When the P72 and P96 models are
not included in the connected indoor
units
27 - 50 units -
When the P72 and P96 models are
included in the connected indoor
units
21 - 39 units 40 - 50 units