Mitsubishi Electric PQRY-P200YEM-A Service Handbook page 43

System diagram
5 PAC-SC30GR connection
Change
Where a group remote controller is
connected to a transfer line for indoor units.
CN41 CN40
51
TB7
TB3
Heat
source
unit
52
BC
controller
Heat source
unit
54
TB7
TB3
56
BC
controller
GR
201
201
Electrical GR
supply
Connect to one or the other
device
6 MJ-103 MTR connection
Heat
source
Indoor unit
unit
51
TB7
01
TB3
52
BC
controller
Heat
source
unit
Fresh
55
Master
TB7
08
TB3
56
BC
controller
000
Electrical
MJ-103MTR
supply
device
Indoor unit Indoor unit
01 02
101
Remote
controller
Indoor unit Indoor unit
04 05
104 105
Remote Remote
controller controller
In series with ventilation
Indoor unit Indoor unit
02
03
101 103
Remote Remote
controller controller
Indoor unit Indoor unit
07 06
107
Remote
controller
In series with ventilation
[Switch settings]
Address switch settings are the same as 1 Individual
operation.
This turns on the central manager switch (SW2-1) of
the outdoor unit.
Indoor unit
[Managing electrical supply connector CN40]
03
When a group remote controller (GR) is connected to
a transfer line for indoor units, this changes the single
electrical supply connector in an outdoor unit group
103
from CN41 to CN 40.
Remote
When connected to a transfer line for central manag-
controller
ers, leave it as is (on CN41).
(receiving electrical power from an electrical supply
Indoor unit
device)
[Registration using a group remote controller]
1 After power is turned on, this changes indoor units
06
to group setting with a group remote controller
2 This sets the relations between indoor units and
remote controllers using a group remote controller.
Indoor unit
101
103
104
107
[Switch settings]
Address switch settings are the same as 1 Individual
operation
Indoor unit This turns on the central manager switch (SW2-1) of
the outdoor unit.
[Registration using a central controller]
1 Group setting
04
• After turning on the power, this activates group
setting for indoor units using a central controller.
• This activates settings for indoor units and
remote controllers using a central controller.
Indoor unit
2 Settings for Lossnay and indoor units are made
05
using a central controller.
Indoor unit
–42–
Description
Remote controllers for groups
using different refrigerants
connect to transfer line of the
latest indoor unit in the group.
Remote controller
← →
01, 02
← →
03
04
← →
05, 06
Group remote controllers can be
connected to both indoor/outdoor
unit transfer lines and central
manager transfer lines.
Remote controller
← →
101
← →
103
← →
107
Fresh Master
← →
01~07 08
Indoor unit
01, 02
03, 04
05, 06
07