Emergency Operation - Daikin VRV III REYQ8PY1 Service Manual

Field Setting

3.2.9 Emergency Operation

If any of the compressors goes wrong, disable the relevant compressor or the relevant outdoor
unit from operating, and then conduct emergency operation only with operational compressors
or outdoor units.
There are two ways of conducting the Emergency operation :
Applicable model
REYQ8 to 16PY1
REYQ18 to 48PY1
[Emergency operation method]
•
[Details of operation]
•
•
<REYQ8 to 16PY1>
8
Set No. 38 of setting mode 2 to "Disable-compressor-1 operation".
204
by setting outdoor unit PC board.
Operating method
Emergency operation with remote controller reset
On the multi outdoor unit system, if any of the outdoor unit line causes a malfunction (in this
case, the system will stop and the relevant malfunction code will be displayed on the indoor
remote controller), disable only the relevant outdoor unit from operating for a 8 hours using
the indoor remote controller, and then conduct emergency operation with operational
outdoor units.
Reset the remote controller (i.e., press the RUN/STOP button on the remote controller for 4
seconds or more) when the outdoor unit stops because of malfunction state.
Automatically disable the defective outdoor unit from operating, and then operate other
outdoor units.
The following section shows malfunction codes on which this emergency operation is
possible.
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
Emergency operation by setting outdoor unit PC board
In malfunction stop state of the outdoor unit due to defective compressor, by setting the
relevant compressor or relevant outdoor unit to "Disabling operation setting", the emergency
operation is conducted with operational compressors or outdoor units.
Disabling the compressor 1 (on the right side) from operating:
(Step)
(1) Press and hold the PAGE button (BS1)
for 5 sec. or more.
(2) Press the OPERATE button (BS2) 38
times.
(3) Press the CHECK button (BS3) once.
(4) Press the OPERATE button (BS2) once.
(5) Press the CHECK button (BS3) twice.
(6) Press the PAGE button (BS1) once.
Emergency operation with
remote controller reset
(Auto backup operation)
–
Backup operation by the
indoor unit
*1: When malfunction codes E7 and H7 are shown, the
possibility of emergency operation is decided as
follows.
While in heating or cooling-heating concurrent
operation
• One out of three connected outdoor units
malfunctions. → Emergency operation is
• Two out of three connected outdoor units
malfunction. → Emergency operation is not
• One out of two connected outdoor units
malfunctions. → Emergency operation is not
LED display (
H1P-----------H7P
8111111
8811881
8111119
8111191
8111111
1181111
with remote controller reset and
Emergency operation with
outdoor unit PC board setting
(Manual backup operation)
Backup operation by the
compressor
Backup operation by the
outdoor unit
possible.
possible.
possible.
8 : ON, 1 : OFF, 9 : Blink)
(Factory setting)
Test Operation
Si37-701