131
P
OWER
D
ISTRIBUTION
S
YSTEM
Pulse signal
AC Power
F1/F2
F1/F2
0
1
2
0
1
2
EM1
EM2
EM3
EM4
CM1
OFF
Pulse signal
AC Power
F1/F2
F1/F2
0
1
2
0
1
2
EM1
EM2
EM3
EM4
CM1
OFF
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
Main circuit breaker
for entire air-conditioning system
Main power breaker
for air-conditioning
6) Installation
MIM-B16N must not be installed in a way that power to MIM-B16N is off when one of the over-current circuit breakers
is switched off. Power supply to MIM-B16N must be off only when all the power supplies to refrigerant systems whose
power consumptions are monitored by the MIM-B16N are cut off. This is because every pulse from electricity meters of
some alive refrigerant systems must be sensed normally even if power supplies to
other refrigerant systems have troubles.
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meters, EM1, EM2 and EM3 are not calculated by MIM-B16N, whose power is off by the CM1. This installation could
lead to errors in electricity billing function when power interruption in local areas occurs.
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EM2 and EM3 are still calculated by MIM-B16N, whose power is not interrupted by CM1.
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