Filling with water
CAUTION
Damage to the unit due to unsuitable fill water
Corrosion and scale could damage the system.
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Adhere to the requirements for the heating water and the local directives
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Check the design and inlet pressure of the expansion vessel, adapt if necessary
For defrosting, a water quantity of at least 60 litres must be present in the heating
circuit.
system pressure = inlet pr 0.5 bar.
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Open the shut off valves.
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Undo cap on quick action vent valve.
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Gradually fill the heating system using the inlet tap (observe the system pressure).
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Vent the system.
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Check soundness and system pressure.
5.3 Refrigerant pipework
Connect refrigerant pipework, see installation and operating manual of outdoor unit.
Installation and operating instruction
Hydraulic unit WWP L 7 ... L 15
5 Installation
83279602 • 1/2014-05 • La
26-59