ANTI-CONDENSATE PUMP
1 - Boiler
2 - Central heating manifolds
3 - Disconnect valves
4 - System pumps
5 - Non-return valves
6 - Automatic vent valve
7 - Boiler safety valve
8 - Boiler drain cock
9 - Storage cylinder safety valve
10 - System filling cock
11 - CH expansion vessel
12 -
r
7200 storage cylinder
13 - Storage cylinder drain cock
14 - DHW expansion vessel
15 - Softener filter
16 - Pressure reducer
17 - Anti-condensate pump
EAF - Domestic cold water inlet
DRAINS
DRAINS
SYSTEM
DELIVERY
SYSTEM
RETURN
HOT WATER
OUTLETS
3
2
2
3
3
3
4
5
3
8
10 15
10
13
14
12
1
EAF
EAF
15
6
3
3
3
3
11
6 7
17 5
3
3
3
5
3
4
3
5
3
4
D
3÷5
D
b
The choice of system components and the method
of their installation are left up to the heating engineer
installing the system. Installers must use their
expertise to ensure proper installation and functioning
in compliance with all applicable legislation.
b
Circuits filled with anti-freeze must be fitted with
water disconnectors.
b
If needed, water supplies and recovery circuits must
be conditioned by suitable treatment systems. See
the table alongside for reference values.
b
A sensor socket must be positioned at a distance of 3 to 5 times the diameter of the water return pipe, upstream
from the water fitting, to measure effective water return temperature and control the anti-condensate pump or the
temperature controller stabilisation function.
b
Any temperature controllers installed remotely from the control panel must be compatible with the system’s electrical
connections and functioning logic.
Schematic diagram - central heating and domestic hot water production
An anti-condensate pump operates during periods of
no heat request to avoid damage until the boiler returns
to a stable operating temperature. While the system is
operating, this pump must guarantee a flow rate between
20 and 30% of maximum flow, must ensure a water return
temperature no lower than the minimum permissible (see
technical data) and must also delay shutting down for at
least 3 minutes at the beginning of extended periods of
boiler shutdown (overnight or weekend shutdown etc.).
REFERENCE VALUES
PH
6-8
Electrical conductivity
below di 200 μS/cm (25°C)
Chlorine ions
below di 50 ppm
Sulphuric acid ions
below di 50 ppm
Total iron
below di 0,3 ppm
Alkalinity M
below di 50 ppm
Total hardness
below di 35°F
Sulphur ions
none
Ammonia ions
none
Silicon ions
below di 30 ppm
INSTALLER
21
