Gebwell Aries 12, Installation And Commissioning Manual

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Connection alternatives
The collector can be depressurised using the level
expansion tank (EX1). The level expansion tank should be
installed at the highest point in the circuit so that air can
rise into the tank.
Do not connect the expansion tank to
a lateral branch as this may prevent air from rising
freely.
If the level expansion tank cannot be installed at
the highest point in the circuit, the system must be made
pressurised (EX2). In such cases, a diaphragm expansion
tank should be used, and this is available as an accessory.
In cooling systems, the collector must be made
pressurised.
Connection to the side
Installing the collector onto several loops
If you are using several collector loops, every circuit must
have shut-off and control valves. Follow the valve
manufacturer’s instructions when you install control
valves. The valve must be installed in such a way that it is
easy to regulate and inspect, and it does not freeze. Purge
the circuits of air one at a time and regulate the flow rate
in relation to the lengths of the circuits. Try to use
collection loops of equal length.
Ground cooling
Ground cooling functions best when heat collection is
arranged using a bored well. During the summer, loops
installed in the soil or in lakes may be at such a high
temperature that the required cooling power cannot be
obtained. Air within the collector should be allowed to
freely rise to the expansion tank. Purging should always
take place at the highest point in the collector. If it is
necessary to connect the cooling radiator to the highest
point in the circuit, purging should take place via the
radiator.
Refrigeration can be controlled/regulated using the
WPOL945C refrigeration accessory available for the heat
pump. Building automation or ventilation machines can
also control the heat pump’s internal source pump. See the
electrical diagrams for instructions.
Cooling outputs