Purpose Of The Heat Pump; Application; Principle Of Operation; Baseline Unit - Dimplex SI 50TE Installation And Operating Instructions Manual

2 Purpose of the heat
pump

2.1 Application

The brine-to-water heat pump is to be used exclusively for the
heating and cooling of heating water. It can be used in new or
previously existing heating systems. Brine is used as the heat
transfer medium in the heat source system. Borehole heat ex-
changers, ground heat collectors or similar systems can be used
as the heat source.

2.2 Principle of Operation

The heat generated by the sun, wind and rain is stored in the
ground. This heat stored in the ground is collected at low temper-
ature by the brine circulating in the ground collector, ground coil
or similar device.
A circulating pump then conveys the warmed brine to the evapo-
rator of the heat pump. There, the heat is given off to the refrig-
erant in the refrigeration cycle. When so doing, the brine cools so
that it can again take up heat energy in the brine circuit.
The refrigerant is drawn in by the electrically driven compressor,
is compressed and "pumped" to a higher temperature level. The
electrical power needed to run the compressor is not lost in this
process, but most of the generated heat is transferred to the re-
frigerant.
Subsequently, the refrigerant is passed through the condenser
where it transfers its heat energy to the heating water. Based on
the thermostat setting, the heating water is thus heated to up to
58 °C.
3

Baseline Unit

The basic device consists of a ready-to-use heat pump for indoor
installation, complete with sheet metal casing, control panel and
integrated manager. The refrigerant circuit contains the Kyoto
protocol approved refrigerant R404A with a GWP value of 3260.
It is CFC-free, does not deplete ozone and is non-flammable.
All components required for the operation of the heat pump are
located in the control box. A sensor for the externall temperature
including mounting hardware as well as a strainer are supplied
with the heat pump. The voltage supply for the load and control
current must be provided by the customer.
The control wire of the brine pump (to be provided by the cus-
tomer) is to be connected to the control box. When so doing, a
motor protecting device is to be installed, if required.
The collector including the brine manifold must be provided by
the customer.
www.dimplex.de
1) Control
2) Evaporator
3) Condenser
4) Compressor
5) Transport securing devices
6) Filter drier
4

Accessories

4.1 Connecting Flanges

The use of flat-sealing connecting flanges allows the unit, as an
option, to be connected by means of flanges.

4.2 Remote control

A remote control adds convenience and is available as a special
accessory. Operation and menu navigation are identical to those
of the heat pump manager. Connection is made using a 6-core
telephone cable (special accessory) with modular plugs.
NOTE
In the case of heating controllers with a removable operating element,
this can also be used directly as a remote control.
4.2
EN-3