* Mixed heating system
There is a possibility to control a second
heating system with a mixing valve. This
is recommended when a combination of
radiators and an underfloor heating is
used.
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Connecting the heat pump to the heating system
The heat pump and collector hose in general
Transporting the heat pump
The heat pump should always be transported and stored in an upright position, never horizontally. Otherwise the
suspension fittings inside the compressor can be damaged. If the heat pump must be tilted during entry to the installation
site, this should be done for as short a time as possible. The outer cover panels should be removed to avoid damage, if the
heat pump is moved without using the supplied pallet.
The heat pump must not be stored at temperatures below -10ºC.
Positioning the heat pump
It is important that the heat pump stands on a flat surface as it contains sensitive parts. Adjust the rubber feet so the heat
pump does not lean.
The temperature surrounding the heat pump must be between 0ºC and 35ºC.
The installer should take sound insulation into consideration when positioning the heat pump.
Maximum working temperatures
The heat pump can work at a maximum return water temperature of approximately 57ºC. If the temperature rises above this
value the heat pump will stop for reasons of safety.
The electric heater will stop if the temperature rises above 55ºC. The maximum outgoing temperature to the heating system
is around 65°C. However, even higher temperature can be attained with the help of the electric heater.
Minimum working temperatures
The heat pump supplied is preset to a minimum temperature of collector fluid ±0°C inlet and -2°C outlet. If anti-freeze liquid
with a freezing point of -15°C is used, the heat pump can operate at outdoor temperatures down to -5°C.
The preset values must be changed during commissioning. At this level the COP is (depending on model) appr. 3.3 - 3.5 at
35°C collector fluid out and 2.4 - 2.6 at 50°C collector fluid out.
Fit the filter
The task of the filter is to filter out dirt before it can enter the heat pump. The supplied filters should always be fitted on the
incoming pipes on both the primary and collector circuits. The filters should be fitted as close to the heat pump as possible
and placed horizontally.
On the Greenstore model the filter for the primary circuit is already fitted inside the heat pump. The supplied filter is to be
fitted on the collector circuit, outside of the heat pump.
Individual temperature control in each room, increasing volume of internal
water and bypass
This solution is viable to control the temperature of each room, for example, where thermostatic valves are used on the
radiators in each room. The function of the heat pump is to maintain a temperature in accordance with the heat curve
(depending on outdoor temperature) in the primary store. The heated water is then distributed from the store to the heating
system. This solution also allows the overall volume of the installation to be increased if the volume of the heating system is
inadequate, for example with one or two fan-assisted radiators.
This system design is intended to ensure that the heat pump is able to continue operating if the flow falls below 70% of the
nominal system flow.
C11:
Expansion tank
C21:
Primary storage tank
E22:
Water heater with electric heater
E42:
Hot water cylinder
F21:
Safety valve
G1 (P1): Radiator pump
G2 (P2): Heat carrier pump (collector)
G4 (P4): Pump for mixed heating system
Q41:
Mixer valve
V21:
Filter heating system
V40:
Hot water draw-off
W40:
Cold water cylinder inlet
The heat pump and collector hose in general
*
TECHNICAL INFORMA
TION
FOR THE USER
FOR THE INST
ALLER
TECHNICAL INFORMA
TION
FOR THE USER
FOR THE INST
ALLER