Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook page 51

[2-7 Example System with an MA Remote Controller ]
(4) Wiring method
1) Indoor/outdoor transmission line
Same as 2-7-1
Shielded cable connection
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
When 2 remote controllers are connected to the sys-
tem
Same as 2-7-1
Group operation of indoor units
Same as 2-7-1
(5) Address setting method
Proce-
Unit or controller
dures
1 Indoor unit
2 LOSSNAY
3 MA
remote con-
troller
4 Outdoor unit
5 Auxiliary
outdoor unit
14
- chapter 2
Address
setting
range
Main IC 01 to 50
unit
Sub unit
LC 01 to 50
Main MA No
remote settings re-
control- quired.
ler
Sub MA Sub
remote remote
control- controller
ler
OC 51 to 99
Hydro HU 52 to 100
unit
4) LOSSNAY connection
Connect terminals M1 and M2 on the terminal block
(TB5) on the indoor unit (IC) to the appropriate terminals
on the terminal block (TB5) on LOSSNAY (LC). (Non-po-
larized two-wire)
Interlock setting between the indoor units and LOSS-
NAY units must be entered on the remote controller. For
information about how to interlock the operation of indoor
and LOSSNAY units, refer to the remote controller instal-
lation manual.
5) Switch setting
Address setting is required as follows.
Setting method
Assign the smallest ad-
dress to the main unit in the
group.
Assign sequential numbers
starting with the address of
the main unit in the same
group +1. (Main unit ad-
dress +1, main unit ad-
dress +2, main unit
address +3, etc.)
Assign an arbitrary but
unique address to each of
these units after assigning
an address to all indoor
units.
-
Settings to be made ac-
cording to the remote con-
troller function selection
Assign the smallest ad-
dress to the outdoor unit
(OC) in the same refriger-
ant circuit.
Assign an address that
equals the "address of the
outdoor unit in the same re-
frigerant circuit plus 1" to
the unit.
Notes
To perform a group opera-
tion of indoor units that
have different functions,
designate the indoor unit
in the group with the great-
est number of functions as
the main unit.
None of these addresses
may overlap any of the in-
door unit addresses.
To set the address to 100,
set the rotary switches to
50.
If the address assigned to
the hydro unit overlaps
any of the addresses as-
signed to the outdoor
units, use a different, un-
used address in the speci-
fied setting range.
Factory
setting
00
00
Main
00
00
BS_02_E