Vaillant aroTHERM VWL 55/3 A 230 V, Руководство по установке

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Troubleshooting 8
0020217827_03 aroTHERM Installation instructions
23
1. Disconnect the product from the power supply.
2. Close the isolation valves on the back of the heat pump.
3. To drain the heating circuit, connect a hose to the drain
cock or place a vessel underneath the drain cock.
–
Working materials: SW10 open-end spanner
4. Open the drain cock with an open-ended spanner.
Note
If necessary, you can drain the heating in-
stallation using this drain cock by opening
the isolation valves on the back of the heat
pump.
7.7 Checking the product's status codes
Menu
→
Live Monitor
You can check the product's status codes at any time to see
which mode the heat pump is in. You can read these codes
on the display of the heat pump control interface module or
hydraulic station.
Status codes (
→
Page 28)
7.8 Checking the electrical installation
▶
Check the electrical installation and take all relevant dir-
ectives into account.
Checking the cable
If the product's power supply cable is damaged, then, in or-
der to avoid danger, only the manufacturer, the Customer
Service team or a similarly qualified person should replace
the power supply cable.
▶
To replace the power supply cable, see Carrying out the
electrical installation (
→
Page 15).
7.9 Start-up following maintenance
▶
After the maintenance work has been completed, start up
the product
–
see Start-up (
→
Page 16).
▶
If you have carried out work on load-bearing parts, check
that they are securely fitted.
▶
When you have completed work on the product, carry out
an operational and safety test.
8 Troubleshooting
8.1 Troubleshooting
You should carry out the following tests before introducing
additional steps.
▶
Make absolutely sure that the power supply was not cut
and that the product is correctly connected.
▶
Ensure that the service valves are open.
▶
Check that all external controls are correctly connected.
8.2 Fault codes
The fault codes are described in a table in the Appendix.
Fault codes (
→
Page 32)
In the event of a fault, a fault code number is shown in the
controller's display.
▶
Carry out all necessary repairs.
▶
Switch the product on/off using the partition.
8.3 Carrying out the actuator test
Menu
→
Installer level
→
Test menu
→
Sensor/actuator
test
You can check that the components of the heating installa-
tion are functioning correctly using the sensor/actuator test.
Display Test programme
T.0.01 Building circuit pump power
T.0.05 Fan power
T.0.07 4-way valve (circuits for thawing are not counted)
T.0.08 Position of the electronic expansion valve
T.0.09 Heating coil compressor
T.0.13 Flow temperature
T.0.14 Return temperature
T.0.16 Building circuit flow rate
T.0.17 Lockout contact S20
T.0.26 Compressor outlet temperature
T.0.27 Compressor inlet temperature
T.0.28 Electrical expansion valve
–
ambient temperature
T.0.29 Electronic expansion valve
–
building circuit
temperature
T.0.30 High pressure
T.0.31 Condensation temperature
T.0.33 Evaporation temperature
T.0.34 Superheating target value
T.0.35 Superheating actual value
T.0.36 Subcooling actual value
T.0.66 Air inlet temperature
T.0.67 High-pressure switch
T.0.68 Compressor rotational speed
T.0.69 Condensate pan heating
T.1.37 Outside temperature
T.1.38 DCF status
T.1.59 Multi-function output 1
T.1.60 Multi-function output 2
T.1.61 Diverter valve 1
T.1.62 Flow sensor
T.1.63 Cylinder sensor
T.1.64 Multi-function input
T.1.65 Energy supply company input