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6
Commissioning
6.1 General
To ensure that commissioning is performed correctly, it should
only be carried out by an after-sales service technician author-
ised by the manufacturer. This may be a condition for an addi-
tional warranty (see "Warranty service").
6.2 Preparation
The following items must be checked prior to commissioning:
All of the indoor unit connections must be installed as de-
scribed in Chapter 5.1.
All of the outdoor unit connections must be installed as de-
scribed in Chapter 7.
All valves which could impair the proper flow of the heating
water in the heating circuit must be open.
The air intake and air outlet paths must be clear.
The settings of the heat pump manager must be adapted
to the heating system in accordance with the manager's
operating instructions.
The heating water circuit must be completely filled and
purged.
Ensure that the condensate drain functions properly.
The outflow from the heating water pressure relief valve
must also function correctly.
Purging the heating system:
Ensure that all heating circuits are open, purge the system
at the highest position and refill water if necessary (comply
with static minimum pressure).
EN-8
6.3 Commissioning procedure
The heat pump is commissioned via the heat pump manager.
Settings should be made in compliance with the HPM's instruc-
tions.
The heating element of mono energy systems should be dis-
connected during commissioning.
Heat source
temperature
by
-20 °C
-14 °C
-9 °C
-4 °C
1 °C
6 °C
11 °C
16 °C
21 °C
26 °C
31 °C
At heating water temperatures below 7 °C, commissioning is
not possible. The water in the buffer tank must be heated with
the 2nd heat generator to at least 18 °C.
The following procedure must then be followed to ensure prob-
lem-free commissioning:
1)
Close all consumer circuits.
2)
Ensure that the heat pump has the correct water flow.
3)
Use the manager to select the automatic operating mode.
4)
In the special functions menu, start the "Commissioning"
program.
5)
Wait until a return temperature of at least 25 °C has been
reached.
6)
Now slowly reopen the heating circuit valves in succession
so that the heating water flow rate is constantly raised by
slightly opening the respective heating circuit. The heat-
ing water temperature in the buffer tank must not be al-
lowed to drop below 20 °C during this process. This en-
sures that the heat pump can be defrosted at any time.
7)
When all heating circuits are fully open and a return tem-
perature of at least 18 °C is maintained, the commissioning
is complete.
CAUTION!
Operating the heat pump at low system temperatures may
cause the heat pump to break down completely. After a
prolonged power failure, the commissioning procedure
detailed above must be followed.
452162.66.16a · FD 0108
LWPS 3 - LWPS 14
Max. temperature spread
between heating flow and return
flow
to
-15 °C
4 K
-10 °C
5 K
-5 °C
6 K
0 °C
7 K
5 °C
8 K
10 °C
9 K
15 °C
10 K
20 °C
11 K
25 °C
12 K
30 °C
13 K
35 °C
14 K
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