Engineering Manual

233
Simple MA Remote Controller
PAC-YT53CRAU
The wiring is different when the remote controller is connected to a CITY MULTI control system (“-A”
type and later) and when it is connected to a M-Series and P-Series air conditioner (A control type).
The wiring also differs with the system configuration. Check the system used.
1. Connecting to CITY MULTI control system
The numbers (1) to (4) in the figure correspond to items (1) to (4) in the following description.
(1) Wiring from the remote controller
• Connect to the MA remote controller terminal block (TB15) on the indoor unit.
• The terminal block has no polarity. Connect to the terminal block at the rear bottom of the remote
controller.
(2) Operating in a group (Groups 03, and 04 above)
• Interconnect the MA remote controller terminal block (TB15) of the indoor units you want to
operate as a group, and connect the MA remote controller to that point.
• When the remote controller is used in combination with the system controller as shown in the
figure above, group setting at the system controller (central controller in the figure above) is
necessary.
(3) Number of connectable remote controllers (groups 02 and 04)
• A main remote controller and one sub remote controller, a total of two, can be connected to a
group made up of indoor units.
NOTE: When using this Simple MA remote controller in combination with other MA remote
controllers, be sure to follow the compatibility rules below.
3 How To Wire Transmission Line
Connect to TB15
on the indoor unit.
a Outdoor unit
b Indoor unit
c LOSSNAY or
OA processing unit
d Main Remote Controller
e Sub Remote Controller
f Central controller
g Power supply unit for
transmission line
Indoor unit function Main remote
controller
Sub remote
controller
Compatibility
Models applicable for
AUTO (dual set point) and
SETBACK mode
This Simple MA
remote controller
This Simple MA
remote controller
Compatible, and AUTO (dual set
point) and SETBACK mode can be
used depending on the indoor units
to be connected.
Other MA remo
te
controllers
This Simple MA
remote controller
Compatible, but AUTO (dual set
point) and SETBACK mode cannot
be used.
This Simple MA
remote controller
Other MA remote
controllers
Incompatible
Models not applicable for
AUTO (dual set point) and
SETBACK mode
Combination with all of the above Compatible
TB5 TB15
TB5 TB15
bb
TB5 TB15
c
TB5 TB15
b
TB5 TB15
b
TB5 TB15
b
TB5 TB15
b
TB7 TB3
TB5 TB15
TB5 TB15
TB7 TB3
(1)
(1)
(3)
(3)
(1)
(3)
(3)
(2)
(2)
(2)
(4)
(1)
(1)
a
a
d d e d
ed
bb
g
f
Address = 51
Address = 01 Address = 02
Address = 55
Address = 08
Address = 07
Address = 03
Address = 04 Address = 09
Address = 06
Address = 05
Group 01 Group 02 Group 03
Group 04