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Start-Up; General; Preparation; Procedure - Dimplex HWK 332 Econ5S Instructions D'installation Et D'utilisation

Tour hydraulique combinée avec gestionnaire de pac
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HWK 332 Econ5S
8

Start-up

8.1 General

To ensure that start-up is performed correctly, it should only be
carried out by an after-sales service technician authorised by the
manufacturer. This may be a condition for extending the guaran-
tee.

8.2 Preparation

The following items need to be checked prior to start-up:
All of the hydro tower connections must be installed as de-
scribed in chapter 7.
All valves that could impair the proper flow of the heating
water in the heating circuit must be open.
The settings of the heat pump manager must be adapted to
the heating system in accordance with the latter's operating
instructions.

8.3 Procedure

The hydro tower is started up via the heat pump manager. Set-
tings should be made in compliance with the instructions.
The operating overpressures indicated on the type plate must not
be exceeded.
Any faults which occur during operation are also displayed on the
heat pump manager. They can be rectified as described in the
operating instructions.
9

Cleaning / maintenance

9.1 Maintenance
To protect the cover, avoid leaning anything against the device or
putting objects on the device. External parts can be wiped clean
with a damp cloth and domestic cleaner.
NOTE
Never use cleaning agents containing sand, soda, acid or chloride, as
these can damage the surfaces.

9.2 Cleaning the heating system

The ingress of oxygen into the heating water circuit may result in
the formation of oxidation products (rust), particularly if steel
components are used. These enter the heating system via the
valves, the circulating pumps and/or plastic pipes. A diffusion-re-
sistant installation is therefore essential, especially with regard to
the piping of underfloor heating systems.
Residue from lubricants and sealants may also contaminate the
heating water.
In the event of severe contamination leading to a reduction in the
performance of the liquefier in the heat pump, the system must
be cleaned by a heating technician.
Based on current information, we recommend using a 5 % phos-
phoric acid solution for cleaning purposes. However, if cleaning
needs to be performed more frequently, a 5 % formic acid solu-
tion should be used.
EN-8
In either case, the cleaning fluid should be at room temperature.
We recommend flushing the heat exchanger in the direction op-
posite to the normal flow direction.
To prevent acidic cleaning agents from entering the heating sys-
tem circuit, we recommend connecting the flushing device di-
rectly to the flow and return of the liquefier of the heat pump.
It is then important that the system be thoroughly flushed using
appropriate neutralising agents to prevent any damage from
being caused by cleaning agent residue remaining in the system.
Acids must be used with care, and the regulations of the employ-
ers' liability insurance associations adhered to.
The manufacturer's instructions regarding cleaning agent must
be complied with at all times.

9.3 Corrosion Protection Anode

The corrosion protection anode installed in the hot water cylinder
should be electrically checked on a regular basis, at least every
two years after start-up, and be replaced if necessary. Electrical
checking is carried out by means of a suitable ammeter, without
draining the tank.
Procedure:
1)
Unplug PE cable from protection anode tab.
2)
Connect ammeter (0...50 mA) between PE cable and tab.
3)
Evaluation of protection anode wear:
Measured value > 1 mA  protection anode is in working
order.
Measured value < 1 mA  protection anode must be tested
or replaced.

10 Faults / troubleshooting

This heat pump is a quality product and is designed for trouble-
free operation. Should a fault occur, however, it will be indicated
on the heat pump manager display. In this case, consult the
"Faults and troubleshooting" page in the operating instructions of
the heat pump manager. If you cannot correct the fault yourself,
please contact your after-sales service technician.
ATTENTION!
Work on the system must only be performed by authorised and qualified
after-sales service technicians.
11 Decommissioning /
disposal
Before removing the hydro tower, disconnect it from the power
source and close all valves. The heat pump must be installed by
trained personnel. Observe all environmental requirements re-
garding the recovery, recycling and disposal of materials and
components in accordance with all applicable standards.
452162.66.10 · FD 9504

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452162.66.10