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1. During commissioning, determine the optimum bypass position for the operation of the
installation. Find out and check the correct adjustment through a trial-and-error process.
2. Check the position of the bypass during operation. Make sure that the flow rate is
sufficient and that the desired temperature is reached.
12
If the slot of the bypass screw is in a
vertical position, the bypass is closed.
If the HeatBloC® K34R is used as a
return flow temperature maintenance,
the bypass must be closed!
If the slot of the bypass screw is in a
horizontal position, the bypass is
completely open. A maximum flow rate
from the return to the flow line is thus
enabled. This adjustment may be
necessary for radiant floor heating
systems which require a very high
water flow volume. Because of the
bypass, the flow temperature
decreases and the control is affected.
993x0663Mx-mub-en – V01
3 Product description
2021/07
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