Connector Output
Function
Marking
Additional information
R
QX8
Change-over valve Q3
Q3
Before the relay test, the change-
over valve is in position B (B for
building, heating circuit).
● Switching the power on turns
the valve to position A (A for
aqua, DHW tank).
● When you switch the relay
test off, the valve returns to
position B.
S
QX9
Heating circuit 1 pump Q2
Q2
When the test is activated, the
pump should start to run.
● For speed controlled pumps,
see further instructions in the
following chapter.
T
QX10
Heating circuit 1 valve open Y1
Y1
The branch leading from the
storage tank to the heating circuit
opens (the circuit starts to take
heat from the storage tank).
● After the test, the valve
remains in the position it was
in at the end of the test.
T
QX11 Heating circuit 1 valve closed Y2
Y2
The branch leading from the
storage tank to the heating circuit
closes (heating circuit’s internal
circulation).
● After the test, the valve
remains in the position it was
in at the end of the test.
U
QX12
Brine circuit (evaporator
circuit) pump Q8
Q8
When the test is activated, the
pump should start to run.
● See further instructions for
speed controlled pumps at the
end of this section.
V
QX13
Condenser circuit pump Q9
Q9
When the test is activated, the
pump should start to run.
● See further instructions for
speed controlled pumps at the
end of this section.
Relay test for speed controlled pumps
Perform the test for speed controlled pumps by activating the pump’s QX output and
signal output test. Finish the test by changing the relay test function setting (line 7700)
to
no test
and setting the test value for UX output to
---
.
Select the QX output that is
connected to the pump.
Activate an UX output test for the pump. Select the UX output that is
connected to the pump (see section
Automation factory settings
and
electrical diagrams). Select a test value, for example 100, 50, and 0
per cent.
34 (74)
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