Adjusting The System; Adjustment Of Shunt Groups; Adjustment Of Floor Loops; Adjustment Of Radiators - ComfortZone RX35 User And Installation Manual

ComfortZone RX35/RX50/RX65

10 Adjusting the system

In order to get the right heat balance in the house, shunt groups, floor loops and
radiators must always be adjusted as below.
This is especially important when "Type of control" "IN" is selected. See section
Settings during installation / Selection of regulation below.
When the correct heat balance as a whole is adjusted, you can lower the
temperature in some rooms, e.g. bedroom, with its thermostats.

10.1 Adjustment of shunt groups

The balance between the different shunt groups, usually one per each floor, is
adjusted through the flow to each shunt group. Adjust the flow from the shunt
group using the throttle valves that are normally mounted on each return line, so
that even heat is distributed to each shunt group (the housing plan).
Never balance with the aid of overtemperature thermostats.
(A) Increased flow gives more heat to the targeted shunt group, and at the
same time gives less heat to other shunt groups.
(B) If you want to increase heat to a shunt group where the flow cannot be
increased, one must reduce the flow to other shunt groups, which gives
the same effect.

10.2 Adjustment of floor loops

Start by opening all thermostats fully. The flow to each loop is adjusted separately,
so that even heat is obtained on all loops in the respective shunt group.
(C) Increased flow gives more heat to each loop.

10.3 Adjustment of radiators

Start by opening all thermostats fully. If necessary, adjust the flow to each radiator.
This is normally done by adjusting the maximum flow in the radiator valve and can
sometimes require special tools.
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service & maintenance