REMKO MWL Series Operating And Installation Instructions page 14

REMKO MWL series
MWP 35 heat pump module
The heat pump module consists of a fully hermetic - and thus maintenance-free - complete refrigeration unit
that contains all the necessary components of the cooling cycle. A quiet and fully modulating compressor
(inverter technology) is used, which adapts its output to the heating requirements of the residential unit in an
energy-saving manner. This allows each individual MWL to be adjusted to the corresponding living area/
heating load. In the fully hermetic cooling cycle, a small amount (compared to other systems) of the refrig-
erant R410A is used as an energy carrier.
The heat pump with a maximum heating capacity of 3.2 kW is the actual heart of the MWL 35 and works in
this system as a water/water heat pump.
The prerequisite is the supply from a flexibly selectable source (smart source), which supplies water at a
temperature between 10-20 °C via a feeder pump installed on site. Energy is extracted from this water in the
heat exchanger of the heat pump module. The water then returns to the source at about 5K reduced temper-
ature. In the process, the spring water circulates continuously to always provide the necessary thermal
energy for the module.
The cooling cycle of the MWL 35 ensures that the heating water is brought to a high temperature level on the
secondary side of the cooling cycle. The inlet of the heating water is either directed in the direction of
 Heating cycle (underfloor heating/radiators) - temperature-regulated as required by the radiators
(example: Underfloor heating → inlet temperature 35 °C - return temperature 28 °C)
or
 Hot water preparation / drinking water storage module MTS 150. The changeover valve integrated in the
WP module is then switched over accordingly to load the storage tank via the smooth pipe heat exchanger.
A heating rod (Smart-Serv) with a heating capacity of 3 kW is also installed in the inlet of the heat pump
module, which can be switched on as a "booster" or in heating mode in the event of high flow rates. The
heating element also serves as a safety feature, e.g. if the source fails during maintenance, so that an emer-
gency heating operation can be realised
Fig. 3: Heat pump module
B: Heat pump module
1: Radiators/area heating
a: Inlet source
b: Return flow source
c: Storage tank return flow
14
3kW
B
a
SV
g
M
b
c d
d: Storage tank inlet
e: Heating cycle return flow
f:
g: Internal bypass line
1
e
f
Heating cycle inlet