Fume Ducts; Gas Connection; Electrical Connections - Ferroli DIVA HF Instructions D'utilisation

DIVA HF
Connection to a storage tank for domestic hot water production
The unit's electronic board is arranged for managing an external storage tank for domes-
tic hot water production. Make the plumbing connections according to the diagram of
fig. 7. Make the electrical connections as shown on the wiring diagram in sec. 23. It is
necessary to use the kit code 1KWMA11W. At the next lighting, the boiler's control sys-
tem recognizes the presence of the hot water tank probe and automatically configures
the DHW function, activating the display and relevant controls.
95
10
209
8
9
fig. 7 - Diagram of connection to an external hot water tank
8 Domestic hot water outlet
9 Cold water inlet
10 System delivery
11 System return
95 3-way valve
209 Hot water tank delivery
210 Hot water tank return

3.4 Gas connection

The gas must be connected to the relevant connection (see fig. 20) in conformity with the
current standards, using a rigid metal pipe or a continuous surface flexible s/steel tube
and installing a gas cock between the system and boiler. Make sure all the gas connec-
tions are tight.

3.5 Electrical connections

Important
B
The unit must be connected to an efficient earthing system in conformity with
current safety regulations. Have the efficiency and suitability of the earthing
system checked by professionally qualified personnel; the Manufacturer de-
clines any liability for damage caused by failure to earth the system.
The boiler is prewired and provided with a "Y" type cable (without plug) for con-
nection to the electric line. The connections to the power supply must be per-
manent and equipped with a double-pole switch with contact opening distance
of at least 3 mm, installing fuses of max. 3A between the boiler and the line.
Make sure to respect the polarities (LINE: brown wire / NEUTRAL: blue wire /
EARTH: yellow/green wire) in connections to the electric line.
B
The unit's power cable must not be replaced by the user; if damaged, switch
the unit off and have the cable replaced by professionally qualified personnel.
If replacing the power cable, only use "HAR H05 VV-F" 3x0.75 mm2 cable with
max. ext. diameter of 8 mm.
11
210
cod. 3541E613 - Rev. 00 - 02/2016
Room thermostat (optional)
B
IMPORTANT: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE
CONTACTS. CONNECTING 230 V TO THE ROOM THERMOSTAT TERMI-
NALS WILL PERMANENTLY DAMAGE THE ELECTRONIC BOARD.
When connecting time controls or a timer, do not take the power supply for
these devices from their breaking contacts Their power supply must be by
means of direct connection from the mains or with batteries, depending on the
kind of device.
Accessing the electrical terminal block
The electrical terminal block can be accessed after removing the casing. The layout of
the terminals for the various connections is given in the wiring diagram in fig. 25.
72
139
fig. 8 - Accessing the terminal block

3.6 Fume ducts

Important
The unit is a "C type" with sealed chamber and forced draught, the air inlet and fume out-
let must be connected to one of the following extraction/suction systems. The unit is ap-
proved for operation with all the Cny flue configurations given on the dataplate. Some
configurations may be expressly limited or not permitted by law, standards or local reg-
ulations. Before installation, check and carefully follow the instructions. Also, comply with
the instructions on the positioning of wall and/or roof terminals and the minimum distanc-
es from windows, walls, ventilation openings, etc.
Baffles
Boiler operation requires fitting the baffles supplied with the unit, according to the indica-
tions given in the following tables.
Make sure the boiler has the correct baffle (when used) and that it is properly positioned.
A
1
2
B
2
1
A Replacement with boiler not installed
B Replacement with boiler and fume ducts already installed
155
10
kOhm
1,8
kOhm
3
3
5
6
4
EN
4
15