Specifications

SiBE28-805 Test Operation
Test Operation 71
1.2.5.4 How to Check How Many Units are Connected
It is possible to find out how many indoor units are active and connected by operating the push-
button switch on the printed circuit board (A1P) of the working outdoor unit.
Make sure that all the indoor units connected to the outdoor unit are active.
Follow the 5-step procedure as explained below.
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The LEDs on the A1P shows the operating status of the outdoor unit and the number of
indoor units that are active.
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The number of units that are active can be read from the LED display in the "Monitor Mode"
procedure below.
Example: in the following procedure there are 3 units active:
Note:
Wherever during this procedure, press the button BS1 MODE if something becomes unclear.
You will return to setting mode 1 (H1P=
h
"OFF").
1. Setting mode 1 (default system status)
2. Monitor mode
3. Monitor mode
4. Monitor mode
h
OFF
k
ON
l
Blinking
Default status (normal)
H1P H2P H3P H4P H5P H6P H7P
hhkhhhh
Press the BS1 MODE button to switch from setting mode 1 to monitor mode.
Default status display
H1P H2P H3P H4P H5P H6P H7P
lhhhhhh
To check the number of indoor units, press the BS2 SET button 5 times
H1P H2P H3P H4P H5P H6P H7P
Selection status of how
many connected indoor
units to display
lhhhkhk
Pressing the BS3 RETURN button causes the LED display to show the data
on the number of indoor units that are connected.
H1P H2P H3P H4P H5P H6P H7P
Displaying the number of
connected indoor units
lhhhhll
32168421
Calculate the number of connected indoor units by adding the values of all
(H2P~H7P) blinking (
l
) LEDs together.
In this example: 2+1=3 units
Press the
BS1 MODE
button to return to step 1, setting mode 1 (H1P=
h
"OFF").