Daikin REYQ96MTJU, Design, Installation & Testing Instruction, Page: 173 / 236

Si39-406 Refrigerant Piping
Installation Manual REYQ96MTJU 167
8.2 Test Run
CAUTION After completing installation, be sure to open the valve. (Operating the unit with the valve shut will
break the compressor.)
Power supply
connection When running the unit for the first time after installation, be sure to perform a test run following
these steps. (Not performing a test run when the unit is first installed may prevent the unit from
operating properly.)
„
During the operation, monitor the outdoor unit operation status and check for any incorrect
wiring.
1. Turn ON the power to the outdoor
units and indoor units.
3.
.
As necessary, configure the system
settings onsite by using the dipswitch
(DS1) on the outdoor unit PC-board
(A1P) and push button switches
(BS1 to 5).
Always perform configuration after turning ON the
power. To learn the setting method, refer to the
[Service Precautions] label attached at the
position shown in the figure on the right
(Electric box lid in outdoor unit).
(Remember, the actual settings you have made
must be recorded on the [Service Precautions]
label.)
2. Check the LED on the PC-board (A1P) in the outdoor unit to see if the data transmission
is performed normally.
Make sure to turn ON the power 6 hours before
starting the operation. This is necessary to warm
the crankcase preliminarily by the electric heater.
LED display
(Default status
before delivery)
One outdoor unit installed
Microcomputer
operation
monitor
Page
HAP H1P H2P H3P H4P H5P H6P H7P H8P
Ready/
Error Cooler/heater changeover
Individual
Bulk
(parent) Bulk
(child)
Low
noise
Demand Multi
LED display: OFF ON Blinking
4. Check if the shutoff valves are in
appropriate status and correct any
wrong status. (Refer to the table in
“
6-6 Additional Refrigerant Charge ”.)
5. Perform the check operation
following the instructions printed
on the [Service Precaution] label.
Do not leave any shutoff valve closed.
Otherwise the compressor will fail.
The system operates for about 15 minutes
(30 minutes at maximum) and automatically
stops the test operation. The system can start a
normal operation about 15 minutes after the test
operation, only if the remote controller displays
no error codes.
Caution
1
2
3
1. Electric box lid
2. Service lid
3. [Service precautions] Label location