Place Of Installation; Plumbing Connections; Important; Gas Connection - Ferroli SKY 11 CB Instructions D'utilisation

SKY C B
Table. 2 - Table of faults
No burner ignition
Flame present signal with
burner off
Overtemperature protection
activation
Intervention of the fume
thermostat (after intervention
of the fume thermostat, unit
operation is restored by turn-
ing the tap off and then on
again with thermostat cooled)
Display OFF
3. INSTALLATION
3.1 General Instructions
THE WATER HEATER MUST ONLY BE INSTALLED BY QUALIFIED PERSONNEL, IN
COMPLIANCE WITH ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL MANU-
AL, THE PROVISIONS OF CURRENT LAW, THE NATIONAL AND LOCAL REGULA-
TIONS, AND THE RULES OF PROPER WORKMANSHIP.

3.2 Place of installation

This unit is an "open chamber" type and can only be installed and operated in perma-
nently ventilated rooms. An insufficient supply of combustion air to the water heater will
affect its normal operation and the evacuation of fumes. Also, the fumes forming in these
conditions are extremely harmful to the health if dispersed in the domestic environment.
Make sure the room where the unit is to be installed meets all the conditions required by
the Current Regulations.
In any case, the place of installation must be free of dust, flammable materials or objects
or corrosive gases.
Place the water heater as close as possible to the hot water taps, near the sink, but NEV-
ER above a cooktop. It must also be located as close as possible to the flue or the place
from where the fume exhaust pipe starts.
If the unit is enclosed in a cabinet or mounted alongside, a space must be pro-
A
vided for removing the casing and for normal maintenance operations.

3.3 Plumbing connections

Important

B
Before making the connection, check that the unit is arranged for operation with
the type of fuel available and carefully clean all the system pipes.
Carry out the relevant connections according to the cover diagram and the symbols giv-
en on the unit .
System water characteristics
In the presence of water harder than 25° Fr (1°F = 10ppm CaCO
water in order to avoid possible scaling in the water heater.

3.4 Gas connection

The gas must be connected to the respective union (see figure on cover) in conformity
with the current regulations, with a rigid metal pipe or with a continuous flexible s/steel
tube, installing a gas cock between the system and water heater . Make sure all the gas
connections are tight.
Check the regular gas flow to the
No gas boiler and that the air has been
eliminated from the pipes
Check the wiring of the electrode
Ignition/detection electrode fault and that it is correctly positioned
and free of any deposits
Check and/or replace
Faulty gas valve
the gas valve
Check the ionisation electrode
Electrode fault
wiring
Card fault Check and/or replace the card
Check the correct positioning
Heating sensor damaged or not
and operation of the heating
correctly positioned
sensor and/or replace it
Fume thermostat contact open Check the thermostat
Wiring disconnected Check the wiring
Flue obstructed or not correctly
Check the flue
sized
Check or replace the solar
Solar thermostat open
thermostat
Batteries flat Replace the batteries
Cables disconnected Check/replace the cables
The microswitch (ref. A - fig. 9)
Check/replace the microswitch
does not commutate
The demand microswitch
Check/replace the microswitch
(ref. B - fig. 9) does not commutate
Check the connection or replace
Probe disconnected
the probe
), use suitably treated
3
3.5 Fume duct
The diameter of the connecting pipe to the flue must not be less than that of the connec-
tion on the anti-backflow device. Starting from the anti-backflow device it must have a
vertical section at least 50 cm long. The current regulations must be respected regarding
the dimensioning and installation of the flues and connection pipe.
B
The water heater has a safety device (fume thermostat) that stops unit opera-
tion in case of poor draught or obstruction of the flue. This device must never
be tampered with or deactivated.
4. SERVICE AND MAINTENANCE
All adjustment, system start-up and periodical inspection operations described hereun-
der must be carried out solely by Qualified Personnel (with the professional technical re-
quirements prescribed by current regulations).
FERROLI declines any liability for damage and/or injury caused by unqualified and un-
authorised persons tampering with the unit.
4.1 Adjustments
Gas conversion
B
Conversion to a gas different from that for which the unit is arranged
must be done by an authorised technician, using original parts and in
compliance with the regulations in force in the country where the unit is
installed.
The unit can operate on natural gas or LPG and is factory-set for use with one of these
two gases, as clearly shown on the packing and on the data plate. Whenever a gas dif-
ferent from that for which the unit is arranged has to be used, the special conversion kit
will be required, proceeding as follows:
fig. 5 Disconnect the wires of the electrodes.
fig. 6 Undo the four screws fixing the burner and pull out the tray.
cod. 3541C702 - Rev. 01 - 06/2014
fig. 5
fig. 6
EN
9