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DOK4x HOIAO WxDEN · FD 9912
19
Air-to-water heat pump 6 kW
English
Step 3: Evacuation
Connect the vacuum pump on the maintenance valve (with
Schrader). Run the vacuum pump until the relevant vacuum is
reached. Close the vacuum pump and start filling immediately.
The duration of the pumping empty process varies with differ-
ent lengths of the pipework and the pump output. The follow-
ing table shows the time required for pumping empty.
Step 4: Filling
Once the leakage tightness test and evacuation have been car-
ried out correctly, open the maintenance valves on the indoor
unit. For refrigerant lines > 7.0 m, top up the refrigerant accord-
ingly.
The heat pump is now ready for use.
Time required for pumping empty with a
0.1 m_/hr. Vacuum pump
Length of the pipework
less than 10 m
30 min. or longer
0.6 mbar or less
Summary of Contents for 06CHOIAOC6
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