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Types Of Switch Settings And Setting Methods - Mitsubishi Electric PFD-P250VM-E Service Manual

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2 Remote control wiring
Wiring specifications
Total Length
1: "MA remote controller" includes MA remote controller, Simple MA controller, and wireless remote controller.
2: Cables with a diameter of 0.75mm
3: When connecting to Simple MA controller terminal, use a cable with a diameter within the range shown in
the parenthesis.

7-3.Types of switch settings and setting methods

Whether a particular system requires switch settings depends on its components. Refer to the section
"7-4 Sample System Connection" before conducting electrical work.
Keep the power turned off while setting the switches. If settings are changed while being powered, the
changed settings will not register, and the unit may malfunction.
Outdoor unit
Indoor unit
10HP has only the main controller
(1) Address setting
The need for address settings and the range of address setting depend on the configuration of the sys-
tem. Refer to "Sample System Connection".
Unit or controller
Indoor unit
Main · Sub
MA remote controller
Outdoor unit
(Note1) If a given address overlaps any of the addresses that are assigned to other outdoor units, use a different, unused address
within the setting range.
Cable type
No. of cable
Diameter
2
or smaller recommended for easier handling.
Unit
Main/sub controllers
Address
Symbol
setting range
In case of 10HP system or 20 HP system with one
refrigerant circuit, assign an odd number starting with "01".
In case of 20HP system with two refrigerant circuits, assign
a sequential odd number starting with "01" to the upper
01~50
IC
(Note 1)
indoor controller, and assign "the address of the upper
indoor controller + 1" to the lower indoor controller.
(For the system with one refrigerant circuit, the lower circuit
board is not used.)
MA
No address setting required.
Add 50 to the address assigned to the indoor unit connected
OC
51~100
the system with one outdoor unit.
21
MA remote controller
VCTF · VCTFK · CVV · CVS · VVR · VVF · VCT
2-core cable
2
0.3~1.25mm
2
2
(0.75~1.25mm
)
3
Maximum length: 200 m
Symbol
OC
Outdoor unit
IC
Indoor and outdoor units
Address setting method
(The main/sub switch must be configured if
two remote controllers are connected to the
system or if the indoor units are connected
to different outdoor units.)
1
Turn off the power to
Factory setting
Model
00
Main
00

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