Installation - WITA UPH 15 Original Einbau- Und Betriebsanleitung

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8 Installation

The circulating pump is installed in the pipeline and as a rule, directly upstream
of the service water reservoir in such a way that the water from the last tap is
pumped back to the reservoir through the circulating pipeline. A check valve
must be installed on the pump's discharge side (primary side) to prevent pump
backflow when the tap is opened.
In the lower part oft he UPH 20-KS,
a non-return valve and a ball valve is
already integrated.
A shutoff valve is installed on the pump's inlet side (secondary side) to make
servicing easier. Assemble the pump with the horizontally positioned pump
motor when the power is shut off (the arrow on the pump housing shows the
direction of flow). Ensure when performing the heat insulation work that the
pump motor and the electronic housing are not insulated.
Fig. 1
Install the device with the power supply disconnected and with the pump motor
lying horizontally (the arrow on the pump housing shows the direction of
flow)(Fig. 1).
When performing insulation work, ensure that the pump motor and the
electronics housing are not covered in
insulation.
Observe the permissible mounting positions:
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