AIC COILMASTER 100, Installation And Maintenance Manual For The Installer And The User

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I-36
G-084383_EN • 03
P
roduct
I
nstallatIon
î
The pressure of the water
network used to fi ll the appli-
ance must be at least 1.2 bar.
î
If the supply pressure from the network
is higher than 6 bar, make sure to install
a pressure reducing valve set at 4.5 bar.
î
Verify the water quality of the network
according to the requirements defi ned
in this manual.
î
In case inhibitors are used in the sys-
tem, consult the manufacturer for
product suitability.
î
Any antifreeze used in the primary cir-
cuit must comply with Public Hygiene
Regulations and must be non-toxic. A
food-grade Propylene Glycol is recom-
mended. It must be diluted according
to the ratio recommended in the local
regulations, but with a maximum ratio
of 30%.
î
Consult the appliance manufacturer to
determine the compatibility of the anti-
freeze product with the appliance ma-
terials.
Make sure that the circuit is provided with
a safety pressure relief valve and an ex-
pansion vessel that is appropriate for the
appliance power and the system size, and
the increase in temperature and pressure.
î
The use of antifreeze in the pri-
mary circuit will lead to a reduc-
tion in the heating performance.
The higher the concentration
of antifreeze in the circuit, the
lower the performance. Maxi-
mum output must be adjusted
accordingly.
î
The circuit diagrams are theoretical
representations that do not necessarily
include all the required safety devices.
Make sure to correctly plan your system
according to the applicable local regula-
tions and standard practices.
i
î
It is recommended to install
the following devices in the
system to prevent water
contamination :
î
Water fi lter and/or dirt separator in-
stalled on the return circuit. Have the
water circulate for 2 hours after instal-
lation and prior to appliance start up in
order to clean the circuit of contami-
nants.
î
Plate heat exchanger, combined with
a micro-pollutant separator, which will
protect the appliance from any con-
taminants present in an old heating
system, where fi ttings and pipes can
be corroded. This is also mandatory
for open systems where oxygen can
penetrate the system and cause cor-
rosion.
Safety Instructions for the Primary Circuit
î
The installation of an expansion
vessel in the DHW circuit is rec-
ommended to prevent the water
hammer effect in the pipework
and the frequent opening of the
safety valve. In addition, the cir-
cuit between the tank and the
safety valve must always remain
open.
î
To prevent the development of the bac-
teria Legionella Pneumophilia in the
DHW circuit, it is recommended to ei-
ther activate the antilegionella function
of the appliance (if any) or to increase
regularly the DHW circuit temperature
to 70° for a short period.
î
The circuit diagrams are theoretical
representations that do not necessarily
include all the required safety devices.
Make sure to correctly plan your sys-
tem according to the applicable local
regulations and standard practice.
i
Safety Instructions for the Primary Circuit