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SiEN18-622
Test Operation
Test Operation
147
1.1.3 Judging and reprogramming in case of redundant BP addresses
The BP unit of this system is provided with specific addresses in its production stage. These
addresses are used to conduct various controls. If by any chance (on 3 out of 260000 units)
these addresses are redundant, the system may get in trouble. When replacing the PCB of the
BP unit too, these addresses may be used repeatedly.
Address redundancy checking flowchart
Reprogramming the PCB addresses of BP unit
Modify the DIP switch (DS2) settings on the BP unit's PCB in the following way.
With the
s
y
s
tem
s
et
u
p, power on
b
oth the
o
u
tdoor
u
nit
a
nd BP
u
nit.
The compre
ss
or i
s
in
a
non-
s
t
a
rt
u
p
condition.
Ex
a
mple: thermo
s
t
a
t control off,
a
l
a
rm
b
eing i
ssu
ed, he
a
ting with
high o
u
tdoor
a
ir temper
a
t
u
re, compre
ss
or
f
a
il
u
re, etc.
BP
a
ddre
ss
e
s
red
u
nd
a
ncy.
Reprogr
a
m the
a
ddre
ss
e
s
.
Norm
a
l
S
et the o
u
tdoor
u
nit PCB in the monitor mode
a
nd check the n
u
m
b
er of indoor
u
nit
s b
eing
connected.
I
s
the n
u
m
b
er of connected indoor
u
nit
s
correct?
Give
a s
t
a
rt comm
a
nd from the indoor
u
nit. Doe
s
the compre
ss
or
s
t
a
rt in 20 min
u
te
s
? (Te
s
t r
u
n
c
a
nnot
b
e m
a
de either.)
No
No
Ye
s
Ye
s
(Q0517)
(Q0444)
H1P (LED A)
H2P (LED 1)
H3P (LED 2)
H4P (LED 3)
H5P (LED 4)
OFF ON
DS2-1
DS2-2
DS2-3
DS2-4
DS2
Summary of Contents for FTKS50BVMB
Page 1: ...SiEN18 622 E Series Service Manual Applied Models zSuper Multi Plus Cooling Only Heat Pump ...
Page 105: ...Refrigerant Flow for Each Operation Mode SiEN18 622 92 Refrigerant Circuit ...
Page 157: ...Indoor Unit SkyAir Models SiEN18 622 144 Function ...
Page 312: ...SiEN18 622 Ceiling Mounted Cassette Type System Configuration 300 ...
Page 424: ...Method of Replacing The Inverter s Power Transistors Modules SiEN18 622 412 Troubleshooting ...
Page 446: ...Wiring Diagrams SiEN18 622 434 Appendix ...
Page 452: ...SiEN18 622 vi Index ...