Mitsubishi PUHY-P250YJM-A - An Example of a System to Which an MA Remote Controller Is Connected

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[ II Restrictions ]
GBHWE1018A
[4] An Example of a System to which an MA Remote Controller is connected
1. System with one refrigerant
(1) Sample control wiring
(2) Notes
1) Leave the male connector on the female power supply
switch connector (CN41) on the outdoor unit as it is.
2) It is not necessary to provide grounding to S terminal on
the terminal block for transmission line for centralized
control (TB7).
3) Although two indoor controllers (controller circuit boards)
are equipped inside the P500 models of indoor units, the
board on No.2 side (lower side) is not used. Do not con-
nect wiring to the lower controller circuit board.
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
2
[AWG16] or larger)
L1+L2 200m [656ft]
*Two indoor controllers (controller circuit boards)
are equipped in the indoor unit (P500).
OC
TB3
TB7
M1M2
M1M2
S
51
IC
TB5-1
A1
B1
S
01
TB5-2
A2 B2 S
02
AB
TB15
1
2
MA
L2L1
Leave the male
connector on
CN41 as it is.
Leave the male
connector on
CN41 as it is.
OS
TB3
TB7
M1M2
M1M2
S
52