Daikin RTSQ20PY1 Service Manual page 200

Field Setting
3.2.10 Emergency Operation
If any of the compressors causes a failure, the relevant compressor or the relevant outdoor unit
will be prohibited from running, and emergency operation will be conducted only with an
operable compressor or outdoor unit.
The emergency operation can be conducted by resetting the remote controller or making
outdoor unit PCB setting.
(1) Emergency operation by resetting the remote controller (Automatic backup operation)
[Emergency operation procedure]
· If the outdoor unit or the function unit stops running due to a malfunction, reset the remote
[Detail]
· The outdoor unit or the function unit in which malfunction
· Malfunction codes that enable the emergency operation are as listed on the left.
(2) Emergency operation by making outdoor unit PCB setting (Manual backup operation)
Applicable model
Detail of setting
Setting of INV
compressor to
operation prohibited
with outdoor unit
(master unit)
Setting of STD
compressor 1 and 2 to
operation prohibited
with outdoor unit
(master unit)
Setting of STD
compressor 2 to
operation prohibited with
outdoor unit (master unit)
Setting of master unit to
operation prohibited
with outdoor unit
(master unit)
Setting of slave unit to
operation prohibited
with outdoor unit
(master unit)
Setting to operation
prohibited with function
unit
189
If a certain outdoor unit circuit causes a failure (i.e., the system stops operation or the indoor
unit remote controller displays malfunction), the faulty outdoor unit or function unit will be
prohibited from running for a period of eight hours through the indoor unit remote controller
setting for a period of eight hours, and emergency operation will be conducted only with an
operable outdoor unit.
controller (i.e., press and hold the ON/OFF button of the remote controller for a period of not
less than 4 seconds.
occurs will be prohibited from running, and other outdoor
units will run.
*1: While in heating operation, if E7 or H7 malfunction occurs, the emergency operation will be disabled.
If any of the compressors stops running due to malfunction, emergency operation will be
conducted only with an operable compressor or outdoor unit by setting the relevant
compressor, outdoor unit or function unit into "operation prohibited" according to the outdoor
unit PCB setting.
RTSYP280A
Set the setting item Set the setting item
No. 42 to "INV No. 42 to "INV
compressor operation compressor operation
prohibited". prohibited".
(Applicable to ) (Applicable to
Set the setting item Set the setting item No.
No. 19 to "STD 19 to "STD compressor
compressor 1, 2 1, 2 operation
operation prohibited". prohibited". (Applicable
(Applicable to ) to
Set the setting item No.
19 to "STD compressor
—
2 operation prohibited".
(Applicable to )
—
—
Set the setting item No. Set the setting item No.
42 to "INV compressor 42 to "INV compressor
operation prohibited". operation prohibited".
(Applicable to ) (Applicable to )
INV STD1 INV
(1) (2) (3)
RTSYP400 · 450A
)
and )
Set the setting item
No. 38 to "Master unit
—
operation prohibited".
(Applicable to
Set the setting item
No. 39 to "Slave unit
—
operation prohibited".
(Applicable to
Set the setting item No.
42 to "INV compressor
operation prohibited".
(Applicable to )
INV STD1 STD2 INV INV STD1
(4) (5) (6) (7) (8)
E3, E4, E5, E7 (*1), F3
H7 (*1), H9
J2, J3, J5, J6, J7, J9, JA, JC
L3, L4, L5, L8, L9, LC, U2, UJ
RTSYP560A
— Set with outdoor unit.
— Set with outdoor unit.
— Set with outdoor unit.
Set with master unit.
(CAUTION) Setting
with slave unit will be
) invalidated.
Set with master unit.
(CAUTION) Setting
with slave unit will be
) invalidated.
Set with function unit.
(CAUTION) Setting with
outdoor unit will prohibit the
operation of the outdoor unit
INV compressor.
INV INV
(9) (10)
SiBE31-801_C
Remark
Test Operation