REMKO WKF 85 - Manual (Page 33)

Split AC unit
The REMKO inverter heat pump is a so called split
AC unit. This means that it consists of an outdoor
unit and an indoor unit, both of which are con-
nected via refrigerant-carrying copper pipes. Thus
there are no water-carrying pipes laid from the
indoors to outdoors which need to be made frost
proof. The outdoor unit contains only the con-
denser, the evaporator and the expansion valve.
This means that the outdoor unit is considerably
smaller. The indoor module contains the system's
condenser and the connections for the heating net-
work.
REMKO inverter technology
The heat pump's condenser is equipped with a
requirement-dependent speed control system. The
power control on conventional heat pumps pro-
vides only two states, either ON (full output) or
OFF (no output). The heat pump turns on below a
specified temperature and turns off when this tem-
perature is reached. This kind of heat regulation is
very inefficient. Heat regulation in the Remko
inverter heat pump is modulated to the actual
need. The electronics system has an integrated
frequency-converter which serves to modify the
condenser speed and the speed of the blower as
required. The condenser works at a higher speed
when under full load than under partial load. The
lower speeds ensure a longer operational lifetime
for the components, improved coefficient of per-
formance and lower noise. Lower speeds also
result in lower energy consumption (electricity) and
longer service life. I.e.: inverter heat-pumps will run
practically throughout the heating season. In all,
the highest efficiency possible.
1/3
When it is switched on, the inverter only requires
one-third of the time of conventional systems
Time
Minimal temperature fluctuations
mean energy savings
Conventional
Inverter
Temperature
Fig. 34: Modern inverter technology
33