Daikin VRV II RXYQ5MY1B Service Manual page 112

SiE39-404
• With RXYQ14M and 16M, if INV compressor is inhibited from operating, only 1 STD
compressor can operate for reasons of oil equalization.
• With RXYQ14M and 16M, STD1 compressor cannot be inhibited from operating for reasons of
oil equalization.
• When 1 outdoor unit is installed (with RXYQ8M to 16M), automatic backup operation cannot
be performed.
5.2.3 In The Case of Multi-Outdoor-Unit System (RXYQ18 to 48M)
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.
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.)
• To inhibit the master unit from operating → Set
setting mode 2 from No. 38 to No. 2.
• To inhibit the slave unit 1 from operating → Set
setting mode 2 from No. 39 to No. 2.
Function
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.
(Procedure)
(1) Press and hold the MODE button (BS1) for 5 sec. 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 5 sec. 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.
Other Control
LED display (7:ON 7:OFF 9:Blink)
H1P---H7P
7777777
7777 77777
7777779
(Factory set)
7777797
7777777
7777777 77
LED display (7:ON 7:OFF 9:Blink)
H1P---H7P
7777777
7777 77777
7777779
(Factory set)
7777797
7777777
7777777 77
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