Installation and user manual | 9
HEAT PUMP MICROWELL HP COMPACT
4.2 Heat pump installation
a) The heat pump is used in conjunction with the filtrating unit, which is one of the swimming pool
installation elements. The water flow through the exchanger of the heat pump must be in
accordance with the suggested value (see chapter
3.1 Technical data). It is important to
install a by-pass consisting of 3 cocks, by which the water flow through the heat pump is set
(see chapter
6.2 Setting of the operating status by the by-pass).
b) The heat pump is equipped with a connecting input and output fitting, for connecting the d50
pipe with the union nut, and with the gasket rubber ring. For connection with the filtration
circuit, use the d50 PVC pipe. You can also use adapting pipes 50/38 mm- not included in the
consignment – and connect all with tubes ø 38 mm. The lower fitting is for entry to the
exchanger, the upper one is for the exit. Put some lubricating oil on the convolutions before
screwing in the union nut.
c) Insert the d50 pipe with 1 – 2 cm overhang into the pipe socket of the exchanger.
d) Please consider using gladhands for the heat pump inlet and outlet, in order to make
the disconnection of the heat pump from the rest of the filtration circuit simple (for water
draining from the heat pump before winter time and for service needs).
e) The heat pump must be connected to the filtration circuit of the swimming pool behind the filter
and in front of the device for water conditioning (automatic chlorine dozing machine, ozone
machine). Please see the next page.
Note: In case of using the automatic chlorine dozing machine in the filtration circuit, it is
necessary to install a backward titanium spring in front of it. If this valve is missing, by shutting
down the filtration, the chlorine concentration around the heat pump exchanger gets increased
and exceeds the allowable level, which causes damages.
Important: For proper operations, there must be a water flow through the heat pump
exchanger in range of 4-6 m
3
/hour. In the case of water flow exceeding 10m
3
/h the heat
pump will turn itself off and an error notice EEb will pop up. Repeated error notice
or repeated exposure of the heat pump to the water flow higher than 8m
3
/h will cause
irreversible damage to flow switch with permanent error notice EEb and the heat pump will be turned
off. Please contact your distributor or service department, the flow switch needs to be replaced.
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