Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 49

[2-7 Example System with an MA Remote Controller ]
(4) Wiring method
1) Indoor/outdoor transmission line
Daisy-chain terminals M1 and M2 of the terminal block
for indoor-outdoor transmission line (TB3) on the outdoor
unit (OC), of the terminal block for indoor-outdoor trans-
mission line (TB3) on the main and sub HBCs (HB and
HS), and of the terminal block for indoor-outdoor trans-
mission line (TB5) on each indoor unit (IC). (Non-polar-
ized two-wire)
Only use shielded cables.
Shielded cable connection
Daisy-chain the ground terminal (
(OC), the S terminal of the terminal block (TB3) on HB
(5) Address setting method
Proce-
Unit or controller
dures
1 Indoor Main unit
unit
Sub unit
2 MA Main
remote remote
controller controller
Sub
remote
controller
3 Outdoor unit
4 Auxiliary HBC
outdoor (Main)
unit
HBC
(Sub)
14
- chapter 2
) on the outdoor unit
Address
setting
range
IC 01 to 50
Assign the smallest address to the main
unit in the group.
In a system with two or more HBCs make
the settings for the indoor units in the fol-
lowing order.
(i) Indoor unit to be connected to the main
HBC
(ii) Indoor unit to be connected to the sub
HBC 1
(iii) Indoor unit to be connected to the sub
HBC 2
(iv) Indoor unit to be connected to the sub
HBC 3
Make the settings for the indoor units in
the way that the formula "(i) < (ii) < (iii) <
(iv)" is true.
Assign sequential numbers starting with
the address of the main unit in the same
group +1. (Main unit address +1, main unit
address +2, main unit address +3, etc.)
MA No set-
tings re-
quired.
MA Sub Settings to be made with the Sub/
remote Main switch
controller
OC 51 to 100
 Set the address to "the smallest indoor
unit address in the same refrigerant cir-
cuit system + 50."
HB 51 to 100 OC +1
HS Assign an address that equals the sum of
the smallest address of the indoor units
that are connected to the sub HBC and 50.
and HS, and the S terminal of the terminal block (TB5) on
the indoor unit (IC) with the shield of the shielded cable.
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
4) Switch setting
Address setting is required as follows.
Setting method
Port number setting is
To perform a group op-
-
To set the address to 100,
If the addresses that is as-
The use of a sub HBC re-
Fac-
tory
Notes
set-
ting
00
required
eration of indoor units
that feature different
functions, designate
the indoor unit in the
group with the greatest
number of functions as
the main unit.
Main
00
set the rotary switches to 50.
signed to the main HBC
overlaps any of the address-
es that are assigned to the
outdoor units or to the sub
HBC, use a different, un-
used address within the set-
ting range.
quires the connection of a
main HBC.
BS_02_L