HP1100/1500COMPACT PREMIUM
I n s t a l l a t i o n a n d u s e r m a n u a l
P a g e
1 7
/ 2 8
V e r s i o n : 0 1 / 2 0 1 8
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simplify the particular heat pump by-pass (disconnection) in the case of reinstallation, testing or
service. Please refer to below illustration.
By multiple heat pump connection it is possible have all the heat pumps always on and running
when heating / cooling is required or to have the heat pumps gradually turning on and off so at
certain conditions (e.g. when requested water temperature is few degrees off the current water
temperature) not all the heat pumps would run. Gradual turning on and off is achieved by setting the
different requested water temperatures on multiple heat pumps. For example:
Heat pump 1
30°C
Heat pump 2
28°C
4.6
Control of the circulation pump
Microwell swimming pool heat pump is able to control the circulation pump. In principle should the
heat pump be in need for heating/cooling it will automatically turn the circulation pump on.
In order to enable this control, the circulation pump must be connected to the heat pump electrically
(please
refer to section 3.6 Block wiring diagram of the PCB board). Normally the circulation pump is
controlled by a time control of the filtration. It is thus advised to make the parallel connection
through power relay enabling both sources of regulation (by the heat pump and by the time
control).
Please note that both heat pump and the time control must be
powered by the same single phase!
Please be advised that when circulation pump control is enabled and electrically connected with the
heat pump, it is normal to have a situation when both the heat pump and the time control give
command to circulation pump to operate at the same time. It is thus strictly forbidden to power
the heat pump and the time control by different phases!
The control is available in three modes:
1.
Periodical mode
Heat pump will turn the circulation pump on only when it needs to heat or cool (i.e. requested water
temperature is off the current temperature by at least 2°C).
Periodical mode can be set in manufacturing settings number 07, figure 0. (please refer
to section
5.7 Setting of the operating parameters)
Periodical mode is also equipped with sampling, i.e. regular water temperature reading. Practically
this means that as soon as the heat pump reaches requested temperature it turns itself and the
Heat pump number 1
Heat pump number 2
Swimming pool
Filtration
tank
6-way
valve
Circulation
pump
By-pass for
heat pump
Main by-pass
