Gebwell Qi 10, Installation, Operation And Maintenance Manual

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Gebwell Qi Installation, operation, and maintenance manual
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6.3 Heat supply circuit
The heating system controls the interior temperature with
a control adjuster and, for example, radiators, underfloor
heating, ventilation and convection heaters.
•
Residual installation impurities must be flushed
from the building’s heating system pipes before
installing the heat pump.
•
Install the required protective devices, mud
separator (strainer) as well as the shut-off and
check valves. Shut-off valves must be installed
as close as possible to the heat pump.
• It is recommended to perform the installation to
a closed heating system with a diaphragm
expansion vessel.
•
Ensure that water does not spill on the pump or
in the electrical devices during operation.
•
The product must be protected against
overpressure with a safety valve. The safety
valve’s maximum opening pressure must be
4.0bar, and the valve must be installed in the
heating system’s return pipe. It is recommended
to lead the overflow pipe of the safety valves to
the nearest floor drain. Install the overflow pipe
so that the water can flow out of the pipe without
obstructions.
•
A connection to a system equipped with
thermostats requires a bypass valve to be
installed in all the radiators or that a few
thermostats be removed to ensure sufficient flow.
Refer to
Technical specifications
–table for
pump’s minimum flow.
Connecting the heating system
Connection options
Accumulator tank to heating system
If the liquid volume of the heating system is too small in
proportion to the heat pump’s power, a buffer accumulator
can be used in the heating system.
NOTE! Ensure pump’s minimum flow with bypass valve
or by leaving sufficient amount of open circuits in heating
network. Refer to
Technical specifications -
table for pump
specific minimum flows.
Radiator/underfloor heating system with a buffer
accumulator
In radiator heating system, it is recommended to install a
buffer accumulator and extra circulation pump to avoid
the noise (clicking) in radiators. The accumulator and the
circulation pump prevent radiators from cooling down
during domestic hot water charging and the noise does not
arise.
If underfloor heating system requires an external
circulation pump, it should be dimensioned to meet the
needs of the underfloor heating system. If the liquid
volume of the heating system is too small in proportion to
the heat pump’s power, a buffer accumulator can be used
in the heating system.
OUTDOOR SENSOR
ON NORTH WALL
OUTDOOR SENSOR
ON NORTH WALL
Buffer reservoir
HEATING CIRCUIT 1