Installation manual
www.dimplex.de 25
Air-to-Water Heat Pumps 2.4
Heating system connection
The domestic heating system is connected using two thermally
insulated flow and return flow pipes. They are laid underground
and are routed through a wall opening into the boiler room, as are
the power supply and the control lines (minimum diameter of
ductwork DN 70).
NOTE
The distance between the building and the heat pump has an influence on
the pressure drop and the heat loss of the connecting pipes and must be
taken into consideration when dimensioning the circulating pump and
the thickness of the insulation. Pipe lengths of over 30m should be
avoided, as the maximum length of the electric connecting cable is 30m.
The connections of the heat pump are routed out of the device in
a downwards direction. Refer to the respective foundation plans
in the dimensional drawings (see Chap. 2.11 on p. 57) for the
location of the heating pipes and the condensate outflow.
NOTE
To facilitate installation when using insulated district heating lines, it is
recommended to leave these at the base frame of the heat pump and to
set-up the connection to the heat pump using flexible hoses.
Fig. 2.16: Foundation plan with location of the supply lines for a LA 9PS heat
pump
Condensate outflow
With outdoor installation, the condensation can be fed into the
rain water canal. The condensed water pipe (diameter minimum
50 mm) should be directed downwards as upright as possible
and not be twisted until it is beneath the frost line. The flow must
have a sufficient slope downwards.
Flow temp. limit
The heat circulating pump is activated automatically by an
integral flow sensor according to need to prevent the heat pump
from freezing when it is not in service.
&RQGHQVDWHRXWIORZ
ZDWHURXWOHW
3RZHUVXSSO\
93(+]
&RQWUROOLQH
ZDWHULQOHW
&RQGHQVDWHRXWIORZ
6ZLWFKER[