Si18-525B
Test Operation
Test Operation
163
1.1.7
Check Operation
* During check operation, mount front panel to avoid the misjudging.
* Check operation is mandatory for normal unit operation.
(When the check operation is not executed, alarm code "U3" will be displayed.)
On completion of test operation, LED on outdoor unit PCB displays the following.
H3P ON: Normal completion
H2P and H3P ON: Abnormal completion
→
Check the indoor unit remote controller for
abnormal display and correct it.
Malfunction code
In case of an alarm code displayed on remote controller:
Check on operation
(Q0518)
Press and hold the TEST
OPERATION button (BS4) on
outdoor unit PCB for 5
seconds.
{
The test operation is started automatically.
The following judgements are conducted within 15 minutes(about 30
minutes at the maximum).
2
“Check for wrong wiring”
2
“Check stop valve for not open”
The following indications are conducted while in test operation.
2
LED lamp on outdoor unit PC board H2P Blinks (test operation)
2
Remote controller Indicates “ ” (during centralized control) on
upper right.
Indicates “ ” (test operation) on lower left
(Only for SkyAir)
Malfunction
code
Nonconformity during installation
Remedial action
E3
The stop valves in the outdoor unit remain
closed.
Open the stop valve on both the gas side and liquid side.
E4
F3
The stop valves in the outdoor unit remain
closed.
Open the stop valve on both the gas side and liquid side.
The operation mode on the remote controller
was changed before the check run.
Set the operating mode on all indoor unit remote controllers to
“cooling”.
The refrigerant is insufficient.
•
Check whether additional refrigerant charge has been finished
correctly.
•
Calculate again the required quantity of refrigerant to be
charged based on the piping length, then charge additionally
proper quantity of refrigerant.
U3
The check operation is not performed.
Perform the check operation.
U4
The power is not supplied to the outdoor unit. Connect correctly the power cable of the outdoor unit.
UA
Improper type of indoor units or BP units are
connected.
Check the type of indoor units and BP units currently connected.
If they are not proper, replace them with proper ones.
UF
The stop valves in the outdoor unit remain
closed.
Open the stop valve on both the gas side and liquid side.
The piping and wiring of the specified indoor
unit are not connected correctly to the
outdoor unit.
Confirm that the piping and wiring of the specified indoor unit are
connected correctly to the outdoor unit.
The operation mode on the remote
controller was changed before the check
operation.
Set the operating mode on all indoor unit remote controllers to
“cooling”.
UH
The unit-to-unit wirings are not connected
correctly.
Connect correctly the unit-to-unit wirings to the F1 and F2(TO BP
UNIT) terminals on the PC board (A1P) in the outdoor unit.
Summary of Contents for D-Series
Page 1: ...Si18 525B Applied Models Super Multi Plus Cooling only Super Multi Plus Heat Pump D Series ...
Page 33: ...List of Functions Si18 525B 20 List of Functions ...
Page 71: ...Specifications Si18 525B 58 Specifications ...
Page 117: ...Refrigerant Flow for Each Operation Mode Si18 525B 104 Refrigerant Circuit ...
Page 171: ...Indoor Unit SkyAir Models Si18 525B 158 Function ...
Page 207: ...Test Operation and Field Setting for RA Indoor Unit Si18 525B 194 Test Operation ...
Page 336: ...Si18 525B Service Check Function Troubleshooting 323 ...
Page 469: ...Wiring Diagrams Si18 525B 456 Appendix ...
Page 475: ...Si18 525B vi Index ...
