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Test Operation
SiUS30-1301
86
Field Setting
3. When an Indoor Unit or Condensing Unit has been Added, or Indoor or condensing Unit PCB has been
Changed
Be sure to press and hold the RESET button for 5 seconds. If not, the addition cannot be recognized. In this case, the unit
cannot be run for up to 12 minutes to automatically set the address (indoor-condensing unit address, etc.)
Status
1.1.3 Check Operation
Be sure to conduct the check operation. If the check operation is not conducted, the error code “
U3
” will be displayed on the
remote controller, thus disabling the normal operation.
Through the following procedure, the check operation is automatically conducted. A period of approximately 20 minutes
(approximately 30 minutes at maximum) is required to complete the judgement.
<Precautions for check operation>
· If the test operation is started within approximately 12 minutes after turning ON the power supply to the indoor and
Condensing
unit
Test lamp H2P .... Blinks
Can also be set during operation described above.
Indoor unit
If ON button is pressed during operation described above, the “
UH
” or “
U4
” error
indicator blinks. (Returns to normal when automatic setting is complete.)
Caution When the 400 volt power supply is applied to "N" phase by mistake,
replace the Inverter PCB (A2P) and control transformer (T1R) in switch
box together.
Check Setting mode 1
If the LED “H1P” t
u
rns OFF, the system is set to “Setting mode 1”.
If the “H1P” t
u
rns O
N
or
b
links, pressing the MODE
bu
tton (BS1)
w
ill set
the system to “Setting mode 1”.
The follo
w
ing check operation is a
u
tomatically started.
1 Check the
w
rong
w
iring.
2 Check
w
hether or not the stop
v
al
v
e is failed to open.
3 Check the refrigerant for o
v
ercharging.
4 J
u
dge the piping length a
u
tomatically.
*
1. The “H2P”
b
links d
u
ring operation, and “TEST OPERATIO
N
” and
“U
N
DER CE
N
TRALIZED CO
N
TROL” are displayed on the remote
controller.
*
2. There may
b
e cases
w
here a period of approximately 10 min
u
tes are
re
qu
ired for the compressor to start
u
p,
w
hich, ho
w
e
v
er, is not an error
bu
t
u
sed to ens
u
re e
v
en refrigerant conditions.
*
3. The check operation
w
ill
b
e a
u
tomatically cond
u
cted in cooling mode.
*
4. In order to stop the compressor operation, press the RETUR
N
(BS3)
bu
tton. The compressor
w
ill stop after the completion of resid
u
al
operation for a period of approximately 30 seconds. (The compressor
operation cannot
b
e stopped from the remote controller.)
Start the check operation.
Press and hold the TEST
OPERATIO
N
(BS4)
bu
tton on the
condensing
u
nit PCB for a period
of 5 seconds or more.
(
)
Completion of check operation
Check the error code
on the remote
controller and then
rectify the error
according to
information in the
“Tro
ub
leshooting”.
After the completion of check operation, check the operation
res
u
lts thro
u
gh the LED displays.
(For normal completion)
(For a
b
normal completion)