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INSTALLATION
PRIMO PILOT
MANUAL
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9
Frost protection is necessary if the
PRIMO
Pilot
is switched off during
the winter months (ex: secondary residence, etc...).
4.2.1.6 - Frost Protection
If the appliance is connected to an
electricity supply, the heating circuit is
protected from freezing. It is IMPERATIVE
to drain the domestic hot water circuit however.
If the pilot is not being supplied with electricity
(electrical cut-off for example), or it is defective
and there is a risk of freezing, it is IMPERATIVE to
completely drain the appliance (heating and hot
water).
4.2.1.9 - Treatment of the water in the
heating circuit
It is MANDATORY to read the additional
document concerning the quality of
water used for fi lling the installation.This
document is included with this manual as well
as in the packet with the warranty information.
This document also contains information which
is PERTINENT to the WARRANTY of the material.
We recommend the use of products in the
SENTINEL
range by
GE
BETZ
for preventative and curative treatment of the heating circuit.
• For new installations : (less than 6 months old):
- Clean the installation with a universal cleaner to eliminate
the debris from the installation (copper, fi bres, soldering
fl uxes) Example :
SENTINEL X300
- Throughly rinse the installation until the water runs clear,
with no traces of impurities left.
- Protect the installation against corrosion with a corrosion
inhibitor, example:
SENTINEL X100
. Or against corrosion
and freezing with an inhibitor with an anti-freeze additive.
Example :
SENTINEL X500
.
• For existing installations:
- Desludge the installation with a desludging product
to eliminate any sludge from the installation. Example:
SENTINEL X400.
- Throughly rinse the installation until the water runs clear,
with no traces of impurities left.
- Protect the installation against corrosion with a corrosion
inhibitor, example:
SENTINEL X100
. Or against corrosion
and freezing with an inhibitor with an anti-freeze additive.
Example :
SENTINEL X500.
It is mandatory to install a 65°C safety aquastat (OPT) with manual
reset (OPT) on the underfl oor heating outlet.
CAUTION WHEN THE INSTALLATION INCLUDES A SANITARY
TANK !
4.2.1.7 - Underfl oor heating
It is I M P E R AT I V E to refer to the
installation instructions for the initial
installation of the ambient temperature
thermostat to ensure satisfactory operation.
I n a n i n s t a l l a t i o n w i t h b o t h
thermostatic valves and a room
temperature thermostat, the radiator(s)
in the room in which the thermostat is
located MUST be equipped with a manual
valve(s).
Thermostatic valves: these valves should prioritise rooms with higher
levels of heat gain.
4.2.1.8 - Thermostatic valves
Central heating installations must be
cleaned in order to eliminate debris (copper,
fi lings, soldering waste) related to the set-up of the
installation or from chemical reactions between the
metals.
Futhermore, it is important to
protect the
central heating installations from risks of
corrosion, limescale, and microbiological
development
through use of a corrosion inhibitor
which is suitable for all kinds of installations (steel or
cast-iron radiators, PEX underfl oor heating).
PRODUCTS USED FOR HEATING WATER
TREATMENT MUST BE APPROVED BY THE
LOCAL OR NATIONAL PUBLIC HYGIENE
AND HEALTH AUTHORITY.
4.2.1.9.1 - Filling water
The materials used for producing a heating circuit are of diff erent
natures. Instances of corrosion may occur through galvanic coupling
in both new and existing installations.
The fi lling of the heating circuit must only be done with untreated water
(no water softener) from the drinking water network. Water from any other
source )rain-water, well-water, etc...), must be analysed and
MUST
have
the following properties:
8,5
U
PH (acidity)
U
9,5
Chlorides
U
60 mg / litre
Conductivity
< 1000 μS / cm
5
U
TH (hardness in French °)
U
15
4.2.1.9.2 - Treatment of the heating circuit
1. The DHW setpoint setting must be less than 55 ° C.
2. Place the safety aquastat as close as possible to the
common outlet of all the underfl oor heating loops (that
is to say just upstream of the fl oor outlet manifold) so as
to move it away from the Pilot’s fl oor outlet outlet and in
order to avoid its triggering after a load of the domestic
hot water tank.
