Gas Connection; Electrical Connections - Ferroli ECONCEPT TOP MICRO 25 C Instructions D'utilisation, D'installation Et D'entretien

ECONCEPT TOP MICRO C
Connection kits
The connection kits shown in fig. 17 are supplied standard.
a
d
b
b1
d1
b2
c
d
c1
c
c
S L M N P Q b-b1
a-a1
c1
S R M N P Q b1-b2
a2-a3
fig. 17 - Connection kits
a 3/4" union assembly for Ø18 pipe
a1 Union assembly for Ø14 pipe
a2 1/2" gas cock
a3 Cock 7/8"
b Heating system connection pipe
b1 DHW system connection pipe
b2 Gas system connection pipe
c 3/4" ring
c1 1/2" ring
d Seal De 24
d1 Seal De 18.5
L OT 58 nipple
M O-ring
N OT 58 stop collar
P Copper washer
Q OT58 union
R Ball cock
S Female sleeve
7 Gas inlet
8 Domestic hot water outlet
9 Cold water inlet
10 System delivery
11 System return
System water charcteristics
In the presence of water harder than 25° Fr (1°F = 10ppm CaCO
treated water is advisable in order to avoid possible scaling in the boiler. The treatment
must not in any case reduce the hardness to values below 15°F (Decree 236/88 for uses
of water intended for human consumption). Water treatment is indispensable in the case
of very large systems or with frequent replenishing of water in the system. If partial or
total emptying of the system becomes necessary in these cases, it is advisable to refill it
with treated water.
Antifreeze system, antifreeze fluids, additives and inhibitors
The boiler is equipped with an antifreeze system that turns on the boiler in heating mode
when the system delivery water temperature falls under 6°C. The device will not come
on if the electricity and/or gas supply to the unit are cut off. If it becomes necessary, it is
permissible to use antifreeze fluid, additives and inhibitors only if the manufacturer of
these fluids or additives guarantees they are suitable for this use and cause no damage
to the heat exchanger or other components and/or materials of the boiler unit and sys-
tem. It is prohibited to use generic antifreeze fluid, additives or inhibitors that are not ex-
pressly suited for use in heating systems and compatible with the materials of the boiler
unit and system.
All manuals and user guides at all-guides.com
10
8
7
9
a1
a2
a3
b1
a
b
d-d1
d1
), the use of suitably
3
cod. 3540R95
Antifreeze kit for outdoor installation (optional)
In case of installation outdoors in a partially protected place for temperatures lower than
-5°C and down to -15°C, the boiler must be equipped with the antifreeze kit to protect the
tap water circuit and air trap. The kit comprises a thermostat, electric heaters and a heat-
er for the air trap. Connect the kit to the electronic card and install the thermostat and
heaters on the tap water pipes as directed in the instructions attached to the kit.
Connection to solar systems
The unit is arranged use in combination with solar systems (fig. 18). For this type of in-
stallation, comply with the following:
1. Contact the local Customer Service Centre for configuring the unit at first lighting.
2. Set a DHW temperature of approx. 50°C on the unit.
3. Make sure to use the special plumbing kits FERROLI.
11
fig. 18 - Solar system diagram
A Wall-mounted boiler
B Hot water storage tank
C Domestic hot water outlet
D Cold water
E Mixing

3.4 Gas connection

B
Before making the connection, ensure that the unit is arranged for operation
with the type of fuel available and carefully clean all the pipes of the gas system
to remove any residues that could affect good functioning of the boiler.
The gas must be connected to the relative connector (see fig. 5.1) in conformity with cur-
rent standards, with rigid metal pipes or with continuous flexible s/steel wall tubing, plac-
ing a gas cock between the system and the boiler. Make sure that all the gas connections
are tight. The capacity of the gas meter must be sufficient for the simultaneous use of all
equipment connected to it. The diameter of the gas pipe leaving the boiler does not de-
termine the diameter of the pipe between the unit and the meter; it must be chosen ac-
cording to its length and loss of head, in conformity with current standards.
B
Do not use the gas pipes to earth electrical appliances.

3.5 Electrical connections

Connection to the electrical grid
B
The unit's electrical safety is only guaranteed when correctly connected to an
efficient earthing system executed according to current safety standards. Have
the efficiency and suitability of the earthing system checked by professionally
qualified personnel. The manufacturer is not responsible for any damage
caused by failure to earth the system. Also make sure that the electrical system
is adequate for the maximum power absorbed by the unit, as specified on the
boiler dataplate.
The boiler is prewired and provided with a Y-cable and plug for connection to the elec-
tricity line. The connections to the grid must be made with a permanent connection and
equipped with a bipolar switch whose contacts have a minimum opening of at least 3
mm, interposing fuses of max. 3A between the boiler and the line. It is important to re-
spect the polarities (LINE: brown wire / NEUTRAL: blue wire / EARTH: yellow-green
wire) in making connections to the electrical line. During installation or when changing
the power cable, the earth wire must be left 2 cm longer than the others.
B
The user must never change the unit's power cable. If the cable gets damaged,
switch off the unit and have it changed solely by professionally qualified person-
nel. If changing the electric power cable, use solely "HAR H05 VV-F" 3x0.75
mm2 cable with a maximum outside diameter of 8 mm.
- Rev. 0 - 10/201
EN 37