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Field Setting from Condensing Unit
SiUS30-1301
106
Field Setting
3.3
Setting by Branch Selector Buttons
The following settings are made by Branch Selector buttons on PCB.
In case of multi condensing unit system, various items should be set with the master unit.
(Setting with the slave unit is disabled.)
The master unit and slave unit can be discriminated with the LED indication as shown below.
k
: ON
h
: OFF
l
: BLINK
(Factory setting)
There are the following 3 setting modes.
(1) Setting mode 1 (H1P OFF)
Initial status (when normal) : Used to select the cool/heat setting. Also indicates during “abnormal” and “demand
control”.
(2) Setting mode 2 (H1P ON)
Used to modify the operating status and to set program addresses, etc. Usually used in servicing the system.
(3) Monitor mode (H1P blinks)
Used to check the program made in Setting mode 2.
Mode changing procedure
Using the MODE button, the modes can be changed as follows.
H1P
H2P
H3P
H4P
H5P
H6P
H7P
H8P
Master unit
h
h
k
h
h
h
h
k
Slave unit 1
h
h
h
h
h
h
h
l
Slave unit 2
h
h
h
h
h
h
h
h
BS1
MODE
BS2
SET
BS3
RETURN
BS4
TEST
BS5
RESET
Setting mode 1
Monitor mode
H1P
Blinking
MODE
MODE
OFF
H1P
Setting mode 2
MODE
ON
H1P
Press the BS1
(MODE) for 5 seconds. (Normal)
Press the BS1
(MODE) once.
Press the BS1 (MODE)
once.
Check item selection (Set)
Contents display
Monitor mode
Setting item selection (Set)
Setting mode 2
(Set): Select mode with BS2 (SET) in each selection step.
Press BS1(MODE) once.
Press BS1 (MODE) for more than 5 sec.
Setting mode 1
(Initial condition)
Press BS3
(RETURN)
once.
Press BS3
(RETURN)
once.
Press BS1
(MODE)
once.
Press BS3
(RETURN)
once.
Press BS3
(RETURN)
once.
Press BS3
(RETURN)
once.
Press BS1
(MODE)
once.
Setting condition
selection (Set)
Setting condition
(Contents) display