Daikin VRV II RXYQ8MY1K Service Manual page 87

Other Control
5.2.3 In the Case of Multi-Outdoor-Unit System (RXYQ16M to 30M)
Note : In order to forcedly clear the automatic backup operation, reset the power
supply with the outdoor unit in the stopped state.
[Emergency operation with settings in service mode]
∗ "Inhibition of operation" is set with each outdoor unit.
Make the following settings with the master unit. (Setting with the slave unit becomes disabled.)
• In order to set the MASTER unit to operation
prohibition mode, set No. 38 of Setting mode 2 to
"MASTER OPERATION PROHIBITION".
• In order to set the SLAVE unit 1 to operation
prohibition mode, set No. 39 of Setting mode 2 to
"SLAVE UNIT 1 OPERATION PROHIBITION".
76
[Automatic backup operation]
With multi-outdoor-unit system, if a certain outdoor unit system malfunctions (i.e., the system
stops and indoor unit remote controller displays the malfunction), by resetting the system with
the indoor unit remote controller, the applicable outdoor unit is inhibited from operating for 8
hours, thus making it possible to perform emergency operation automatically.
However, in the event any of the following malfunctions occurs, automatic backup operation
can be performed.
Malfunctions under which automatic backup operation can be performed:
• E3, E4, E5, E7
• F3
• H7, H9
• J2, J3, J5, J6, J7, J9, JA, JC
• L3, L4, L5, L8, L9, LC
• U2, UJ
∗ Discriminate the operating status of the master unit / slave units through the following LED
display.
LED display (7:ON
H1P----H7P H8P
Master :
77 7777777 7777 7
Slave 1:
7777777 7777777
Slave 2: 7777777 7777777 7 7
(Factory set)
(Procedure)
(1) Press and hold the MODE button (BS1) for a period
of 5 seconds or more.
(2) Press the SET button (BS2) 38 times.
(3) Press the RETURN button (BS3) once.
(4) Press the SET button (BS2) once.
(5) Press the RETURN button (BS3) twice.
(6) Press the MODE button (BS1) once.
(Procedure)
(1) Press and hold the MODE button (BS1) for a period
of 5 seconds or more.
(2) Press the SET button (BS2) 39 times.
(3) Press the RETURN button (BS3) once.
(4) Press the SET button (BS2) once.
(5) Press the RETURN button (BS3) twice.
(6) Press the MODE button (BS1) once.
:OFF :Blink)
7 7 9
9
LED display (7:ON
H1P----H7P
7777777 777777
7777
777777 77777
7777 7777 7
7777777 777777
77 7777777
LED display (7:ON
H1P----H7P
7777777 777777
7777
777777 77777
7777 7777 7
7777777 777777
7777777 77
Si39-502A
:OFF
9
7 7
77777 7
(Factory set)
9
9
7 7
7777
:OFF
7 7 9
77777
(Factory set)
9
9
7 7
7777
Function
:Blink)
:Blink)