Test Operation Procedure - Daikin RZQ18PVJU Installation Manual

5. Piping size and heat insulation:
Refer to "6-1 Selection of piping material", "6-5 Heat
insulation of the piping".
6. Check of stop valve:
Confi rm that the stop valve is open on both the liquid line
and gas line.
7. Record of amount of additional refrigerant:
Record the amount on the label sticked on the back of the
front panel.
8. Measurement of insulation in main power circuit:
• Use the megatester for 500 V.
• Do not use any megatester for low voltage electric circuits
except 230 V.
(Wiring between the outdoor unit and the indoor unit)
CAUTION
<To piping technician>
• Make sure to open the stop valve after fi nishing the piping
work.
(Operating the air conditioner with the stop valve shut may
damage the compressor.)
9.

TEST OPERATION PROCEDURE

A crankcase heater is mounted for smooth startup. Make
sure to turn on the power 6 hours before starting opera-
tion for supplying the power to the crankcase heater.
WARNING
• Make sure to close the outer panel before leaving the
outdoor unit in the power ON status.
• To avoid injury, always make sure that the circuit breaker on
the power supply panel of the installation is switched off
before doing any work.
Cautions before turning on the power
• Put the insulating cover securely onto the electric parts box.
• After turning on the power, check the settings and LED
indicators on the PC board (A1P) in the outdoor unit
through the opening of the insulating cover.
9-1 Power on and check operation
• Make sure to perform the check operation after installation.
(If the air conditioner is operated using the indoor remote
controller without performing the check operation, the mal-
function code "U3" is displayed in the indoor remote control-
ler, and normal operation is disabled.)
15
• In the check operation, the status of the outdoor unit is
checked, and incorrect wiring is checked for.
(1) • Close the outer panel
of the outdoor unit.
• Turn ON the power to
the outdoor unit and
indoor units.
(2) • Open the outer panel of the outdoor unit.
• Check the LED on the PC board (A1P
and A2P) in the outdoor unit to see if the
data transmission is performed normally.
A1P A2P
LED display
(Default
status
before
delivery)
One outdoor
unit installed
LED display:
OFF
(3) • When performing the •
low-noise operation
(L.N.O.P.) or demand
(DEMAND) operation •
upon request from the
customer, perform the
setting using the
pushbutton switches (BS1 •
to BS5) on the PC board
(A2P) in the outdoor unit.
• Press each pushbut-
ton switch from the
opening of the
insulation cover.
(Do not remove the
insulation cover.)
(4) Confi rm that the shutoff
valves are open on both
the liquid and gas lines. If
they are closed, open them.
(5) Press and hold the test •
run button (BS4) for
5 seconds or more to start
the check operation.
For the details, refer to the
•
Check operation method
on the [Service Precau-
tions] label.
•
(6) After the check operation, make sure to close the outside panel
of the outdoor unit.
Make sure to turn on the
power 6 hours before
starting operation for
Caution
supplying the power to
the crankcase heater.
The power is
supplied to the
outdoor unit.
Take due care
during the work to
prevent electric
shock.
Blinking
ON
The power is supplied to the
outdoor unit. Take due care during
the work to prevent electric shock.
Before using the pushbutton
switches (BS1 to BS5) for setting,
confi rm that the microcomputer
(SERVICE) monitor is lit.
For the setting method, refer to the
[Service Precautions] label
attached on the back of the front
panel of the outdoor unit. (Make
sure to write the contents of setting
on the [Service Precautions] label.)
Do not leave any
shutoff valve closed.
Caution
Otherwise the
compressor will fail.
When leaving the outdoor unit during
the check operation for unavoidable
reasons, ask another installation
worker to watch the outdoor unit, or
close the outside panel.
The system operates the check
operation for about 15 minutes
(30 minutes maximum), then stops
automatically.
The system can start normal operation
about 5 minutes after the check
operation if the remote controller does
not display any malfunction code.
During the check operation, the
status under execution is indicated
on the remote controller.
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