Length (m)
MODEL
(L1 + L2)
0 ÷ 4
4 ÷ 10
24 F
10 ÷ 20
20 ÷ 30
For the C52 type, do not fit the flue and air duct terminals on opposite walls of the building.
If the discharge duct is longer than 6 metres, install the condensate collection kit, supplied as an accessory, near the boiler.
If fitting a single flue duct, make sure it is adequately insulated (e.g.: with glass wool) wherever the duct passes through
building walls. For detailed installation instructions, consult the technical data provided with the accessories.
10.2.1 NOTES FOR INSTALLATIONS WITH SEPARATE OUTLETS
In particular installation situations with separate ducts,
vibrations may be generated in the appliance.
To solve this problems, a slot closed with pre-punched holes
on the outlet (Ref. A) has been prepared on the fumes
outlet. This can be easily removed by the Qualified Technical
Assistance Service without having to remove the outlet.
Remove knock-out A and check the appliance works correctly.
11. ELECTRICAL CONNECTIONS
This machine is only electrically safe if it is correctly connected to an efficient earth system in compliance with current safety
regulations.
Connect the boiler to a 230V single-phase earthed power supply using the supplied three-pin cable, observing correct LIVE-
NEUTRAL polarity.
Use a double-pole switch with a contact separation of at least 3 mm.
When replacing the power supply cable, fit a harmonised "HAR H05 W-F" 3x0.75mm
Access to the power supply terminal block
• remove the front panel of the boiler (secured at the bottom with two screws);
• turn the control box downwards;
• remove the metal guard from the control box;
• open the left-hand side of the cover and access the electrical connections area.
The 2A fast-blowing fuse is incorporated in the power supply terminal block (to check and/or replace the fuse, pull out the black
fuse carrier).
The terminal block is at high voltage. Before making connections, make sure the appliance is disconnected from the power
supply.
Respect polarity L (LIVE) - N (NEUTRAL).
(L) = Live (brown)
(N) = Neutral (light blue).
= Earth (yellow-green).
(1) (2) = contact for Room Thermostat.
7113156.01 (1-05/13)
Using a DIAPHRAGM on
OUTLET DUCT (mm) "A"
Ø 43
Ø 45
Ø 47
No
30
Length (m)
MODEL
(L1 + L2)
0 ÷ 15
18 F
15 ÷ 25
25 ÷ 30
cable with a maximum diameter of 8 mm.
2
Using a DIAPHRAGM on
OUTLET DUCT (mm) "A"
Ø 41
Ø 43
Ø 45