Daikin Super Multi Plus E-Series, Service Manual

Page: 160 / 456

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