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LA 33TBS
A shielded communication line (not included in the scope of
supply) connects the heat pump manager (controller -N1)
with the controller -N0 installed in the heat pump. More de-
tailed instructions can be found in the heat pump manager
operating instructions and in the electrical documentation.
NOTE
The communication cable is necessary for the function of air-to-water
heat pumps in outdoor installation. It must be shielded and laid
separately from the mains cable.
6.3.3 Demand sensor connection
The demand sensor R2.2 (NTC 10) is included with the heat
pump manager. It must be installed depending on the hydraulics
used (see cap. 3 on page V).
If no request sensor is connected, regulation of the 2nd heat gen-
erator will not be possible in the event that communication with
the heat pump manager is disrupted.
NOTE
The return sensor R2 installed in the heat pump is active when the
compressor is running and must not be disconnected.
7
Commissioning
7.1 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. These measures can also include an
additional warranty under certain conditions (see Warranty)
www.dimplex.de
7.2 Preparation
The following items must be checked prior to commissioning:
The casing covers of the heat pump must be mounted on all
sides.
There must be no ignition sources in the danger area.
Personal protective equipment (protective goggles, safety
shoes and gloves where necessary) must be used when
working on the device.
The heating circuit must have been filled and checked.
All of the heat pump connections must be installed as de-
scribed in chapter 6.
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 fan must turn in the direction indicated by the arrow.
The settings of the heat pump manager (controller
-N1) must be adapted to the heating system in accordance
with the operating instructions.
Ensure that the condensate drain functions properly.
There must be no ignition sources in the danger area.
7.3 Procedure
The heat pump is commissioned via the heat pump manager.
Settings should be made in compliance with the HPM's instruc-
tions.
At heating water temperatures below 7 °C, commissioning is not
possible. The water in the buffer tank must be heated to a mini-
mum of 18 °C with the second heat generator.
To ensure problem-free commissioning, the following procedure
must be implemented:
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 heating
water temperature in the buffer tank must not be allowed to
drop below 20 °C during this process. This ensures that the
heat pump can be defrosted at any time.
7)
When all heating circuits are fully open and a return temper-
ature of at least 18 °C is maintained, the commissioning is
complete.
ATTENTION!
Operating the heat pump at low system temperatures may cause the heat
pump to break down completely.
452166.66.05 · FD 9803
English
EN-9
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