Hydraulic Connections - Polytropic PAC 16 Manuel D'instructions

Hydraulic connections

The heat pump should be connected to a filtration circuit trough a by-pass.
It is imperative that the by-pass is placed after the pump and the filter.
The by-pass generally consists of 3 valves.
These valves allow to regulate the water flow which passes through the heat
pump and to isolate the heat pump completely for any maintenance work, without
cutting the filtration flow.
If your installation is equipped with water treatment devices (chlorine, brome
feeder, salt water chlorine generator, others) the by-pass must be installed before
the water treatment devices, with a non-return check valve between the by-pass
and water treatment devices.
Water inlet and outlet are designed to be connected to rigid pressure PVC tube
(for swimming pool) Ø50 mm, directly glued to the half union connectors
provided.
Inlet water tube must be connected to connection labelled: IN
Outlet water tube must be connected to connection labelled: OUT
Water tubes must be fixed on the floor or the walls, so the heat pump will not
support the weight of the water inside the plumbing.
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