AirStage ARXB07LALH, Service Manual

Page: 12 / 207

Addresses shall be assigned to all indoor units / Signal amps.
Check for unset or duplicated addresses.
< For the setting, Refer to the page 01-06, 07 >
All the indoor units in the same refrigerant circuit shall enter the coolingtest run
state. The outdoor units corresponding to the operation capacity of the indoor
units shall operate.
< Test operation procedure, Refer to the page 01-09,10 >
Cooling
test run
All of the
indoor units
operation
(after 30 mins)
Automatic address setting
Address read
Outdoor unit circuit breaker ON
Indoor unit circuit breaker ON Check lighting of Main PCB LED101 and 7-segment display.
Check whether or not indoor unit OPERATION and TIMER lamps flash alternately.
Address
setting/
check
There shall be no Error information on the 7-segment display on the Main PCB.
Between L - N AC230V (220-240V)
These shall be no abnormal sound or abnormal vibration.
The outdoor fan shall not make a moaning sound.
There shall be no discharge air leaking from the outdoor duct.
There shall be no pipe chattering sound or flute sound generated.
HPS: 2.7 MPa
LPS: 0.9 MPa
TH1: 81°C
TH4: 15°C
TH21: 27°C
TH22: 11°C
TH24: 13°C
Shall operate corresponding to the operation capacity of the indoor units.
Service tool used, output (CSV Excel)
Outdoor unit push button
SW operation
<On service tool>
High pressure
Low pressure
Discharge pipe temperature (outdoor unit)
Suction pipe temperature (outdoor unit)
Inlet air temperature (indoor unit)
Heat exchange inlet temperature (indoor unit)
Heat exchange outlet temperature (indoor unit)
Compressor operation
Data output
1-2-2 Check Items After Power ON
01-04
Function setting
Are the necessary functions set ?
< For the setting, Refer to the page 01-15 18 >
Outdoor unit Main
PCB push button
SW setting/check
[Note]
Cooling test run for each refrigerant circuit.
If multiple refrigerant circuits are test run at the same time, refrigerant circuit address setting errors cannot
be detected.
Judgement standard Check Check contents Procedure
Power ON
Inlet air temperature and outlet air temperature difference shall be 10°C or
greater.
There shall be no abnormal sound or abnormal vibration.
There shall be no water leakage. There shall be no condensation on the drain,
cabinet, piping, and discharge port.
Shall operate according to the settings. (ON-OFF, set temperature change)
<Indoor unit service tool + actual measurement>
Outlet air temperature
Abnormal sound/abnormal vibration
Water leakage check
Remote controller operation
<Outdoor unit>
Outdoor Main PCB 7-seg. display
Operation voltage
Abnormal sound/
abnormal vibration
[Note] Turn on all indoor units power in the same refrigerant circuit address.
When the system operates with the indoor units remaining no power, it is cause of malfunction.
Indoor unit connection check
Are the number of connecting indoor units correct ?
Is the total capacity of indoor units correct ?
< For the checking, Refer to the page 01-08 >
Indoor unit
connection check
Address record
Address hold check
All the indoor units and outdoor units of the same refrigerant circuit can be
checked on the service tool.
Enter the set addresses in the check sheet.
Check whether or not the address setting is held by the service tool
after indoor/outdoor circuit breakers were turned OFF to ON.
[Note] Before connecting service tool, the address setting has to be completed.
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