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WPL 19 IK | WPL 24 IK
f Fit the pressure hoses in the appliance to the "heating circuit
f
flow" and "heating circuit return" connections.
f Connect the hydraulic connections to the function module.
f
f Check for leaks.
f
9.4
Circulation pump
When designing the heat pump system, please observe the spec-
ified maximum, externally available pressure differentials (see
chapter "Specification / Data table" in the heat pump operating
and installation instructions).
Material losses
!
When adjusting the circulation pump, make sure that the
minimum flow rate is ensured at all operating points (see
chapter "Specification / Data table" in the heat pump op-
erating and installation instructions).
9.5
Safety valve
f Size the drain pipe so that water can drain off unimpeded
f
when the safety valve is fully opened.
f Fit the drain pipe of the safety valve with a constant fall.
f
f Ensure that the drain connection of the safety valve is open to
f
the outside.
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9.6
Electrical connection
WARNING Electrocution
f Before working on the appliance, isolate it from the
f
power supply at the control panel.
Note
The leakage current of this appliance can be > 3.5 mA.
The connection must only be made by a qualified contractor and
in accordance with these instructions.
Permission to connect the appliance must have been granted by
the relevant power supply utility.
Note
Follow the instructions for the heat pump manager and
the heat pump.
9.6.1 Heat pump connection
The cable entries for the cables are located on the side of the
function module (see chapter "Specification / Dimensions and
connections").
Note
The appliance has cable clamps for you to use when rout-
ing the cables.
f Route the cables as shown in the diagram.
f
f Connect the cables according to the following diagram.
f
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