Coil Return Connections - Dimplex ECS150HP40A-580 Installation And User Instructions Manual

5.6 Coil Return Connections

If the return connection is the lowest point in the
heat pump loop, a suitable drain device should
be installed. For location of connections see
Figure 1.
It is recommended that the fittings used to
connect to the cylinder are suitable for stainless
steel, the flow and return should use 28mm
compression fittings. Not all push fit fittings can
be used – please check with your supplier. When
using compression fittings, ensure that the
connection is not over-tightened.
5.7 Coil Flow Connections
If the flow connection is the highest point in the
heat pump loop and if the system was not
commissioned using a flush and fill pump, an
adequate
installed. The coil flow connection must be
connected to the A connection of the three port
valve. See Figure 5.
Note: Special care is required when fitting
the 3 port valve to ensure "A" goes to the
DHW coil and that "B" goes to the buffer.
This is different to the normal convention
that may be used.
Installation
device for de-aeration
Legend:-
A = HP Flow
B = HP Flow to Buffer
Figure 5: Diagram Showing Positions of Valve
must be