Maintenance; Cleaning The Brine Circuit Filter; Operating Ground Source Heat Pump Manually; Troubleshooting - Oilon GT 5 Operation Manual

3. Maintenance

3.1. Cleaning the brine circuit filter

1. Switch off the heat pump using the main power switch Q1.
2. Shut the filter isolation valves.
3. Open the filter cover.
4. Remove the filter element and clean it by rinsing with water.
5. Place the filter element back.
6. Fill the filter space with brine.
7. Close the filter cover.
8. Open the filter isolation valves.
9. Switch the heat pump back on using the main power switch Q1.

3.2. Operating ground source heat pump manually

For example thunderstorms may cause failures in heat pump automatics. It is then
possible that heat pump does not function at all. For such cases operating switch has
position II allowing heat pump to be used as electric boiler during failure. Rooms are
then heated using 6 kW resistor capacity.
1. Open front door on the left side. Door on the right side is fastened with screws.
2. Turn operating switch into position II.
3. Set desired heating circuit supply water temperature for thermostat located near the
operating switch.
4. When automatics are working again, turn operating switch into position I.

3.3. Troubleshooting

Failure codes
Device failures are displayed on the control panel. Check the failure code and cause by
pressing Information button.
GT02 1408 EN
Switch off electricity before performing any maintenance work.
Open the filter carefully, as there is fluid in the pipe.
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