Hydraulic Connection - Hayward SUMHEAT HP5171DT3 Installation Instructions Manual

3. INSTALLATION AND CONNECTION (continued)
It is advised to install the unit on a dissociated cement block.
The maximum installation distance between the unit and the swimming
pool is 15 metres.
The total length of the piping to and from the unit is 30 metres.
Insulate both the above ground and buried hydraulic piping.
The heat pump must be installed at a minimum distance from the pool
in compliance with NF C 15-100 (3.5 m from the water for France) or in
compliance with installation standards applicable in other countries.
Do not install the heat pump close to a heat source.
For installation in snowy regions we recommend sheltering the machine
to avoid snow accumulating on the evaporator.

3.3 Hydraulic connection

The unit is supplied with two 50 mm Ø union connections. Connect the water
inlet to the heat pump coming from the filtration group then connect the
water outlet to the heat pump at the water conduit going to the pool. Install a
by-pass valve between the heat pump entrance and exit. (see diagram below).
If an automatic distributor or an electrolyser is used, it should be
installed imperatively after the heat pump with the goal of protecting the
titanium condenser against an elevated concentration of chemicals.
Be sure to install the by-pass valve and the supplied union connections
at the water inlet and outlet level in order to simplify purging during
the winter period and to facilitate access when disassembling for
maintenance.
Water inlet Ø 50 mm
Water outlet Ø 50 mm
9