Mitsubishi Electric PURY-RP200 Service Handbook page 50

[ II Restrictions ]
(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 units (OC), of the ter-
minal block for indoor-outdoor transmission line (TB02) on the main
and sub BC controllers (BC and BS), and of the terminal block for
indoor-outdoor transmission line (TB5) on each indoor unit (IC).
(Non-polarized two-wire)
Only use shielded cables.
Shielded cable connection
Daisy-chain the ground terminal (
S terminal of the terminal block (TB02) on the BC and BS, 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
Daisy-chain terminals A and B of the system controller, M1 and M2
terminals of TB7 (terminal block for centralized control system con-
nection) on the outdoor units (OC) in different refrigerant systems,
and M1 and M2 terminals of TB7 (terminal block for centralized con-
trol system connection) on the outdoor units (OC) in the same refrig-
erant circuit.
If a power supply unit is not connected to the transmission line for
centralized control, replace the power jumper connector on the con-
trol board from CN41 to CN40 on only one of the outdoor units.
When connecting a system controller, set the centralized control
switch (SW2-1) on the control board of all indoor units to "ON."
Only use shielded cables.
(5) Address setting method
Pro
ce-
Unit or controller
du-
res
1 Indoor Main unit IC
unit
Sub unit
2 LOSSNAY
3 MA Main re-
mote
remote
controller
control-
ler
Sub re-
mote con-
troller
4 Outdoor unit
5 Auxilia-
BC
controller
ry out-
(Sub)
door
unit
BC con-
troller
(Main)
HWE10020
) on the outdoor units (OC), the
Ad-
dress
setting
range
01 to 50 Assign the smallest address to the main unit in the
group.
In a system with a sub BC controller, make the set-
tings for the indoor units in the following order.
(i) Indoor unit to be connected to the main BC control-
ler
(ii) Indoor unit to be connected to sub BC controller 1
(iii) Indoor unit to be connected to sub BC controller 2
Make the settings for the indoor units in the way that
the formula "(i) < (ii) < (iii)" 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.)
LC 01 to 50
Assign an arbitrary but unique address to each of these
units after assigning an address to all indoor units.
MA No set-
tings re-
quired.
MA
Sub re- Settings to be made with the Sub/Main switch
mote
controller
OC
51 to 100 The sum of the smallest address of the indoor units in
the same system and 50.
BS
51 to 100 Assign an address that equals the sum of the smallest
address of the indoor units that are connected to the
sub BC controller and 50.
BC 51 to OC+1
100
Shielded cable connection
Daisy-chain the S terminal of the terminal block (TB7) on the system
controller, OC with the shield of the shielded cable. Short-circuit the
earth terminal (
on the outdoor unit whose power jumper connector is mated with
CN40.
3) MA remote controller wiring
Same as [5] 1.
When 2 remote controllers are connected to the system
Same as [5] 1.
Group operation of indoor units
Same as [5] 1.
4) LOSSNAY connection
Connect terminals M1 and M2 on the terminal block (TB5) on the in-
door unit (IC) to the appropriate terminals on the terminal block for
indoor-outdoor transmission line (TB5) on LOSSNAY (LC). (Non-po-
larized two-wire)
Indoor units must be interlocked with the LOSSNAY unit us-
ing the system controller. (Refer to the operation manual for
the system controller for the setting method.) Interlock set-
ting from the remote controller is required if the ON/OFF re-
mote controller alone or the LM adapter alone is connected.
5) Switch setting
Address setting is required as follows.
Setting method
-
- 41 - 41
) and the S terminal on the terminal block (TB7)
Notes
Port number setting is re-
quired
To perform a group opera-
tion of indoor units that
feature different functions,
designate the indoor unit
in the group with the
greatest number of func-
tions as the main unit.
None of these addresses may
overlap any of the indoor unit ad-
dresses.
Make the same indoor unit group
settings with the system controller
as the ones that were made with
the MA remote controller.
To set the address to 100, set
the rotary switches to 50.
To set the address to 100, set
the rotary switches to 50.
If the addresses that is assigned
to the main BC controller over-
laps any of the addresses that
are assigned to the outdoor
units or to the sub BC control-
ler, use a different, unused ad-
dress within the setting range.
The use of a sub BC controller
requires the connection of a
main BC controller.
Fact
ory
set-
ting
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Mai
n
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