Daikin VRV III RXYQ5-54PY1 Service Manual page 136

Si34-601A
5.2.2 In the Case of 1-Outdoor-Unit System (RXYQ8P to 18P)
[Set the system to operation prohibition mode by compressor]
• In order to set an INV compressor to operation
prohibition mode, set No. 42 of Setting mode 2 to
"EMERGENCY OPERATION".
• In order to set STD1 and STD2 compressors to
operation prohibition mode, set No. 19 of Setting
mode 2 to "STD1, 2 OPERATION PROHIBITION".
(RXYQ10P to 18P)
• In order to set the STD 2 compressor to operation
prohibition mode, set No. 19 of Setting mode 2 to "STD2
OPERATION PROHIBITION". (RXYQ14P, 16P, 18P)
• For RXYQ14P, 16P and 18P, if the INV
compressor is set to operation prohibition mode, only a single STD compressor will operate for
the convenience of oil equalization.
• For RXYQ14P, 16P and 18P, only the STD1 compressor cannot be put into operation
prohibition mode for the convenience of oil equalization.
• For the system with a single outdoor unit (RXYQ8P to 18P), automatic backup operation is not
functional.
5.2.3 In The Case of Multi-Outdoor-Unit System (RXYQ20P to 54P)
Function
(Procedure)
(1) Press and hold the MODE button (BS1) for a
period of 5 seconds or more.
(2) Press the SET button (BS2) 42 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) 19 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) 19 times.
(3) Press the RETURN button (BS3) once.
(4) Press the SET button (BS2) twice.
(5) Press the RETURN button (BS3) twice.
(6) Press the MODE button (BS1) once.
[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
LED display (7:ON :OFF
7 7
H1P----H7P
7777777 777777
777 7 77 7 77 7
(Factory set)
77777 77777 7 9
9
7777 7777 7 7 7
7777777 777777
7777777 77 7777
LED display (7:ON :OFF
7 7
H1P----H7P
7777777 777777
77 7 777 7777
(Factory set)
7777777 777777
9
77777 7777 7 7
7777777 777777
7777777 77 7777
LED display (7:ON :OFF
7 7
H1P----H7P
7777777 777777
77 7 777 7777
(Factory set)
7777777 777777
9
77777 7777 7 7
7777777 777777
7777777 77 7777
Other Control
:Blink)
9
:Blink)
9
:Blink)
9
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