11 Commissioning
Note! Read the safety instructions!
11.1 Filling and bleeding the hot water heater and heating system
1. Fill the water heater with cold water by opening the filler valve that is on the valve pipe.
2.
Bleed by opening one of the hot water taps.
3. Then fill the water heater coil and the heating system with water through the filling valve to a pressure of
approximately 1 bar.
4. Open all radiator valves fully.
5. Bleed all radiators.
6. Refill the heating system to a pressure of approximately 1 bar.
7. Repeat the procedure until all air has been removed.
8. Check the system for leakage.
9. Leave the radiator valves fully open.
11.2 Checking the pipes and electrical installation
Before manual test operation, check that the following points have been correctly carried out:
11.2.1 Piping installation, heating system
•
Pipe connections in accordance with the connection diagram, see System solutions.
•
Flexible hoses on the supply and return lines
•
Pipe insulation
•
Strainer on return line
•
The heating system has been bled
•
All radiator valves fully open
•
Expansion tank heating system (not included in the delivery)
•
Safety valve for expansion tank
•
Filler cock with non-return valve heating system (not included in the delivery)
•
Safety valve for cold water (not included in the delivery)
If a water heater is installed, also check:
•
Exchange valve (included in DHP-AQ Midi and DHP-AQ Maxi)
•
Bleed valve (not included in the delivery)
11.2.2 Electrical Installation
•
Circuit-breaker (not included in the delivery)
•
Fuse protection
•
Positioning of the outdoor sensor
•
Communication cable between heat pump and control centre.
If a an external water heater is installed, also check:
•
Exchange valve (included in DHP-AQ Midi and DHP-AQ Maxi)
Installation instructions VMGFD102 – 65
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