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Aquarea air/water heat pump – Installation manual for monobloc and split systems C, D and E series 05 / 2014
Installation of heating and refrigeration circuits for split systems
Connecting the water pipes to the hydro module
➤
Install an overflow valve if no hydraulic decoupling (e .g . hydraulic
switch or storage tank) is planned . Ensure that the overflow valve
is not designed for the minimum volume flow, but for the nominal
volume flow of the respective heat pump .
➤
If a heat pump with a cooling function is used, install a 2-way direc-
tional valve to deactivate the heating circuits in cooling mode, where
applicable .
➤
Install the 3-way directional valve (to be provided by the customer) to
switch from heating mode to water heating mode and vice versa, if a
hot-water tank by manufacturers other than Panasonic is used . As
standard, the valve should be open towards the heating circuit (con-
tacts 4 and 6 are closed) . The valve must also be CE compliant and
may not exceed the peak load of 12 VA .
➤
Use Rp 1¼" nuts to connect the water inlet (labelled WATER IN) and
water outlet (labelled WATER OUT) . Use a torque wrench to tighten it,
and apply the correct torque: 117 .6 Nm
➤
Close the supply (water outlet) and return (water inlet) of the hydro
module at the heat exchanger of the hot-water tank . Make sure you
do not confuse the connections .
➤
Install a device for draining the system on-site .
Warning!
Tightening with too much
torque can result in leaks .
Warning!
In cooling mode, air moisture
can condense on the surface of
the heat transfer systems . This
can damage the building or
make the floor slippery . As a re-
sult, you must install suitable
positioned dew point sensors to
ensure that temperatures lower
than the dew point do not occur
or drain any condensate which
forms reliably . In addition, the
pipelines affected must be insu-
lated impermeably .
Warning!
Hydraulic decoupling between
the heat pump circuit and heat
emitter circuit is always required
when using Aquarea heat
pumps with high efficiency
pumps – overflow valves may
not be used .
