Mitsubishi Electric PUHY-P250YJM-A, Руководство по обслуживанию

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[
II
Restrictions ]
27 - 27 -
HWE10190 GB
(4) Wiring method
1) Indoor-outdoor transmission cable
Daisy-chain terminals M1 and M2 of the terminal block
for indoor-outdoor transmission cable (TB3) on the out-
door unit (OC) and of the terminal block for indoor-out-
door transmission cable (TB5) on the indoor unit (IC).
(Non-polarized two-wire)
ΠOnly use shielded cables.
Shielded cable connection
Connect the ground terminal ( ) of OC to the S terminal
of TB5 on IC with the shielded cable.
2) Transmission cable for the centralized control system
No connection is required.
3) MA remote controller wiring
ΠRequired when operation with two remote controllers or
group operation is performed.
When two remote controllers are connected to the
system
When two remote controllers are connected to the sys-
tem, connect terminals 1 and 2 on the terminal block for
MA remote controller cable (TB15) on the indoor unit (IC)
to the terminal block on the MA remote controller (sold
separately). (Non-polarized two-wire)
ΠSet the Main/Sub setting of the MA remote controller
(sold separately) connected to the indoor unit to Sub.
Refer to the Instruction Manual for the MA remote con-
troller for the setting method. The main MA remote con-
troller is built in on the indoor unit.
4) Switch setting
Address setting is required as follows.
(5) Address setting method
The outdoor units in the same refrigerant circuit are automatically designated as OC and OS.
Units are designated as OC and OS in the descending order of capacity (ascending order of address if the capacities are the
same).
Unit or controller
Address
setting
range
Setting method Notes
Factory
setting
1 Indoor unit Main con-
troller
IC 01 to 50 Assign the lowest address
to the main indoor unit in
the group.
To perform a group op-
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.
00
Sub con-
troller
Assign sequential num-
bers starting with the ad-
dress of the main unit in
the same group.
[main unit +1, +2, +3…]
2 MA remote
controller
Main re-
mote con-
troller
MA No settings
required
- Main
Sub remote
controller
MA Sub re-
mote con-
troller
Settings to be made in the
remote controller function
selection mode
3 Outdoor unit OC
OS
51 to 100 Assign an address that
equals the address of the
indoor unit in the same re-
frigerant circuit plus 50.
Assign sequential ad-
dresses to the outdoor
units in the same refriger-
ant circuit.
The outdoor units are au-
tomatically designated as
OC and OS. (Note)
To set the address to
"100," set the switch to
"50."
00
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