Cleaning / Maintenance; Cleaning & Maintenance; Cleaning The Heating System; Cleaning The Heat Source System - Dimplex SI 50TUR Instructions D'installation Et D'utilisation

SI 50 - 70 TUR
9

Cleaning / Maintenance

9.1 Maintenance
To prevent malfunctions due to sediments in the heat exchang-
ers, care must be taken that no im-purities can enter the heat
source system and the heating installation. In the event that op-
erating malfunctions due to contamination occur nevertheless,
the system should be cleaned as described below.

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. They enter the heating system via the
valves, the circulating pumps and/or plastic pipes. It is there-
fore essential - in particular with respect to the entire pipework
- that only diffusion-resistant materials are used.
NOTE
We recommend the installation of a suitable corrosion
protection system to prevent the formation of deposits (e.g.
rust) in the condenser of the heat pump. We recommend
equipping diffusion-open
electrophysical anti-corrosion
system).
Residue from lubricants and sealants may also contaminate the
heating water.
In the case 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 %
phosphoric acid solution for cleaning purposes. However, if
cleaning needs to be performed more frequently, a 5 % formic
acid solution should be used.
In either case, the cleaning fluid should be at room tempera-
ture. We recommend flushing the heat exchanger in the direc-
tion opposite to the normal flow direction.
To prevent acidic cleaning agents from entering the heating
system circuit, we recommend connecting the flushing device
directly 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 sys-
tem.
Acids must be used with care and the regulations of the em-
ployers' liability insurance associations must be adhered to.
The manufacturer's instructions regarding cleaning agent must
be complied with at all times.
www.glendimplex.de
heating systems with
system (e.g. ELYSATOR
452237.66.55 · FD 0007
9.3 Cleaning the Heat Source
System
CAUTION!
The supplied strainer must be fitted in the heat source inlet of
the heat pump in order to protect the evaporator against the
ingress of impurities.
The filter sieve of the dirt trap should be cleaned one day after
start-up. Further checks must be set according to the level of
dirt. If no more contamination can be noticed any more, the
strainer filter can be removed in order to reduce pressure
losses.

10 Faults / Troubleshooting

This heat pump is a quality product and is designed for trouble-
free operation. In the event that a fault should occur, it will be
indicated on the heat pump manager display. In this case, con-
sult the Faults and troubleshooting page in the operating in-
structions of the heat pump manager. If you cannot correct the
fault yourself, please contact your after-sales service techni-
an
cian.
CAUTION!
Any work on the heat pump may only be performed by
authorised and qualified after-sales service technicians.
CAUTION!
Disconnect all electrical circuits from the power supply before
opening the enclosure.

11 Decommissioning / Disposal

Before removing the heat pump, disconnect it from the power
source and close all valves. The deinstallation of the heat pump
must be performed by technical personnel. Observe all environ-
mentally-relevant requirements regarding the recovery, recy-
cling and disposal of materials and components in accordance
with all applicable standards. Particular attention should be
paid to the proper disposal of refrigerants and refrigerant oils.
English
EN-13