Commissioning; General; Preparation; Procedure - Dimplex LA 1118CP Montage- Und Gebrauchsanweisungen

LA 1118CP
8

Commissioning

8.1 General

Commissioning must be carried out by trained personnel. Spe-
cialist tools must be used. To ensure that commissioning is per-
formed correctly, it should only be carried out by an after-sales
service technician authorised by the manufacturer (Fig. 1.1 on
page 4). Under certain conditions, this may be associated with
an additional warranty service.
WARNING!
Risk of injury and damage to property due to improper
handling.
 Work on the heat pump is only to be carried out by people
with the knowledge set out in Fig. 1.1 on page 4.

8.2 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 and fire loads in the

safety zone.
Personal protective equipment (e.g. protective goggles,

safety shoes and gloves where necessary) must be used
when working on the device.
 All of the heat pump connections must be installed as de-
scribed in chapter 7.
The heating circuit must have been filled and checked.

All valves which could impair the proper flow in the heating

circuit must be open.
 The air intake and air outlet paths must be clear.
The settings on 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.
The hydraulic network must be flushed correctly before in-

stalling the heat pump. This includes the supply line to the
heat pump. Only when flushing is complete can the heat
pump be hydraulically integrated.
The dirt traps present as standard or included for assembly

must be inspected between 4 and 8 weeks after the heat
pump is commissioned or changes made to the heating
system and cleaned if necessary. Additional maintenance
intervals must be scheduled depending on the level of soil-
ing, and must be defined and carried out by a suitably qual-
ified person. Unless there is an excessive accumulation of
dirt, an interval of 1 year is generally effective.
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Special notes for integration of heat pumps into
existing systems (renovations):
The existing heat distribution network (pipe materials, connec-
tion types, etc.) and the existing heating systems (e.g. radiators,
underfloor heating, etc.) can impact the quality of the water in
existing systems. Particularly when welded steel pipes or pipes
that are not oxygen diffusion-proof are used, deposits, scaling,
silting or similar may be present that can cause damage in the
heat pump system. This can result in a total failure of the heat
pump. The following measures must be observed to avoid this:
Compliance with the water properties and water quality

Flushing of the hydraulic system

Maintenance interval of the dirt traps

If silting or ferromagnetic particles are to be expected in

the hydraulic network, dirt separators or magnetite separa-
tors must be installed on-site before the medium enters
the heat pump. The cleaning intervals must be defined by a
suitably qualified person.
It is essential to ensure that no oxygen gets into the heating

circuit of the heat pump.

8.3 Procedure

NOTE
Only software that is authorised and approved by the
manufacturer can be installed on the machine's control
system.
The heat pump is commissioned via the heat pump manager
(controller -N1). The settings must completed in accordance
with the instructions.
At heating water temperatures lower than 7 °C, commissioning
is not possible. The water in the buffer tank must be heated to
at least 20 °C with the 2nd heat generator.
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 "winter" operating mode.
4) In the special functions menu, start the "Commissioning"
program.
5) Wait until a return temperature of at least 29 °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 24 °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 20 °C is maintained, the commissioning
is complete.
452171.66.01-EN · FD 0212
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