Airwell DLF 18 DCI, Техническое руководство

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12-3
CONTROL SYSTEM
SM DL
F 1
-A.1 GB
12.8.4.3 Pump Down Test procedure
Pump Down is used to evacuate the refrigerant back to the ODU in case of need to dis-connect the
indoor unit or the inter-connecting piping for repair.
1.
Start the operation by navigating the HMI.
2.
A/C will start operate.
3.
After about
1
@<%"¡
At this stage - close the Liquid valve.
4.
[@+ % +;!%
theLPS - Low pressure status will blink:
5.
Close the suction valve
6.
Shut the unit power OFF
7.
The test will end after about
2
minutes. This is for percussion reasons in case the unit
will not be shut OFF (or not closes the valves).
12.8.4.4 OFAN Test procedure
1. Start the operation by navigating the HMI.
.
2
Both OFANs will start operation.
.
3
After about 30 sec the fans will be shut off.
.
4
'@ "@W[ž !%W[ž @
faulty.
12.8.4.5 EEV Test procedure
1. Start the operation by navigating the HMI.
.
2
Press up or down to move the EEV by 10 steps each push.
.
3
Replace if faulty.
12.8.4.6 Compressor Test procedure
1. Start the operation by navigating the HMI.
.
2
A/C will start operate.
.
3
| %^
measurements to assure the operation.
.
4
After about 30 sec the A/C will be shut off.
.
5
'@ !% @@"
12.8.4.7 RV Test procedure
1. Start the operation by navigating the HMI.
.
2
Listen to RV “clicks” (2 cycles) to assure operation.
.
3
Replace if faulty.
12.8.4.8 Temperature Sensor Test procedure
1. Start the operation by navigating the HMI.
.
2
[`& !% "
.
3
'@ %@"
4. The display will show the faulty thermistor name following by “FLT” display:
%%
This message should be displayed blinking for 30 sec.
5. Replace the faulty sensor.
6. Note š the fault is NOT send diagnostics as “Short” or “Disconnected”.