Daikin VRV II REYQ10MY1B, Service Manual

Page: 97 / 309

Other Control Si39-306
86 Function
5.2 Emergency Operation
If the compressor cannot operate, this control inhibits any applicable compressor or outdoor unit
from operating to perform emergency operation only with the operative compressor or outdoor
unit.
5.2.1 Restrictions for Emergency Operation
• In the case of system with 1 outdoor unit installed and when the inverter compressor is set to
operation prohibit, only when thermostats of indoor units having a capacity of 50% or more of
the outdoor unit capacity turn ON, the emergency operation is functional. (If the total capacity
of indoor units with thermostat ON is small, the outdoor unit cannot operate.)
• If the emergency operation is set while the outdoor unit is in operation, the outdoor unit stops
once after pump-down residual operation (a maximum of 5 minutes elapsed).
5.2.2 In the Case of 1-Outdoor-Unit System (REYQ8 to 16M)
•
Emergency operation with settings in service mode
∗
“Inhibition of operation” is set with each compressor.
• To inhibit INV compressor from operating
→
Set
setting mode 2 from No. 0 to No. 2.
(Procedure)
(1) Press and hold the MODE button (BS1) for 5 sec. or
more.
(2) Press the RETURN button (BS3) once.
(3) Press the SET button (BS2) one.
(4) Press the RETURN button (BS3) twice.
(5) Press the MODE button (BS1) once.
• To inhibit STD1 and STD2 compressors from
operating
→
Set setting mode 2 from No. 19 to No.
2. (REYQ8M to REYQ16M)
(Procedure)
(1) Press and hold the MODE button (BS1) for 5 sec. 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.
• To inhibit STD2 compressor from operating
→
Set
setting mode 2 from No. 19 to No.3.(REYQ14M)
(Procedure)
(1) Press and hold the MODE button (BS1) for 5 sec. 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.
Caution
"For making a compressor unable to operate due to malfunction, etc., be sure to
conduct the work with emergency operation setting.
Never execute work such as disconnection of the power cable from magnet contactor.
(Otherwise, other normal compressors may malfunction.)
∗∗∗∗
Because the units will be operated in the combination with which oil pressure
equalization between compressors cannot be performed.
LED display (
7
:ON
7 7
:OFF
9 9
:Blink)
H1P---H7P
(Factory set)
7 777777 777777
777777 777779 9
77777 77779 97 7
7777777 777777
77 7777777 7777
LED display (
7
:ON
7 7
:OFF
9 9
:Blink)
H1P---H7P
(Factory set)
7 777777 777777
77 7777 7777
777777 777779 9
77777 77779 97 7
7777777 777777
77 7777777 7777
LED display (
7
:ON
7 7
:OFF
9 9
:Blink)
H1P---H7P
(Factory set)
7 777777 777777
77 7777 7777
777777 777779 9
77777 777799 99
7777777 777777
77 7777777 7777