Daikin REYQ8-48PY1B, Service Manual

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Test Operation SiBE37-701_B
181 Test Operation
[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.
„
The LEDs on the A1P shows the operating status of the outdoor unit and the number of
indoor units that are active.
„
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 22 units active:
Note:
Wherever during this procedure, press the BS1 MODE button if something becomes unclear.
You will return to setting mode 1 (H1P=
h
"OFF").
1. Setting mode 1 (default system status)
Press the BS1 MODE button to switch from setting mode 1 to monitor mode.
2. Monitor mode
To check the number of indoor units, press the BS2 SET button 5 times
3. Monitor mode
Pressing the BS3 RETURN button causes the LED display to show the data on the number
of indoor units that are connected.
4. Monitor mode
Calculate the number of connected indoor units by adding the values of all (H2P~H7P)
blinking (
l
) LEDs together.
In this example: 16+4+2= 22 units
Press the BS1 MODE button to return to step 1, setting mode 1 (H1P=
h
"OFF").
h k l
: Blinking
Default status (normal)
Default status display
Selection status of how many
connected indoor units to display.
Displaying the number of connected
indoor units
h h k h h h h
H1P H2P H3P H4P H5P H7P H6P
l h h h h h h
H1P H2P H3P H4P H5P H7P H6P
l h h h k h k
H1P H2P H3P H4P H5P H7P H6P
l h l h l l h
H1P H2P H3P H4P H5P H7P H6P H1P H2P H3P H4P H5P H7P H6P
32 16 8 4 2 1