IVAR SUPERAC 1045 SUPERAC 1220, Инструкция пользователя

Страница: 40 / 42

HYDRAULIC CONNECTION
The choice and installation of the system components is the responsibility of
the installer who must operate in accordance with correct working practice and
the current legislation.
Here are some recommendations that should be taken in consideration:
-
the boiler fittings and the safety valves must not be strained by the
weight of the system connection pipes: this can be dangerous for the boiler
and the latter must therefore be sustained and appropriately positioned
-
Cut-off devices must not under any circumstances be fitted between the
boiler and the expansion vessel and between the boiler and the safety valves.
-
The expansion vessel must be correctly sized (there must be no leaks of
water due to normal expansion) and, if the expansion vessel is closed, the
safety valves must open only in exceptional cases in order to minimise any
subsequent introduction of water and in any case to ensure that it is
introduced and controlled by one single point in the system.
-
Ensure that the safety valve outlets are connected to an outlet funnel. If
not, when the valves cut in they will flood the room and the manufacturer will
accept no liability for this.
-
Ensure that the hydraulic pipes are not used as earth connections for the
electrical or telephone system. They are not suitable for this use and can
rapidly deteriorate leading to serious damage.
-
Before connecting up the boiler, wash all the system pipes to remove any
debris that could affect correct operation.
-
If the water available for filling the system is hard (> 15 French degrees)
or corrosive (pH < 7.2), a treatment plant should be provided otherwise
permanent damage can occur.
-
If the mains water supply contains impurities, a suitable filter must be
fitted.
- Avoid any accidental contact between the heating system water and the
sanitary water as the former is not drinkable.
-
After connection to the hydraulic system, ensure that the latter is
completely de-aerated.
You are advised to insulate the heating system pipes to avoid heat dispersion
resulting in increased fuel consumption and environmental pollution.
ELECTRICAL SYSTEM
The electrical system must comply with the current regulations and be
installed by professionally qualified personnel..
Electrical safety of the equipment is ensured only when it is correctly
connected to an efficient earth system in compliance with the current safety
regulations.
The manufacturer will not be liable for any damage caused by failure to earth
the system.
Call professionally qualified personnel to check that the electrical system is
suitable for the maximum power absorbed by the equipment, ensuring in
particular that the system cable sections are suitable for the power absorbed
by the equipment.
Adapters, multiple sockets and extension leads must not be used for general
power supply of the equipment from the mains.
For connection to the mains, a twin-pole switch must be provided in
compliance with the current regulations.
THE CONDENSATE PROBLEM
The condensation of the steam contained in the discharge smokes of the boiler
(condensate), appears when the boiler temperature returning in the boiler is
less than 50°C and it is important above all during the morning start up after
than the boiler has been switched off all night long.
The condensate is acid and corrosive and, with the passing of time, corrodes
the plates of the boiler.
To avoid the formation of condensate as much as possible, an anticondensate
pump must be installed as describe below.
When the burner starts, a thermostat (calibrated to 55 °C) which is placed on
the return water pipe makes contact, and starts the anticondensate pump to
reach the stated temperature, and the temporaly extinguishes the
anticondensate pump and switches on the unit pump.