Service And Maintenance; Installer Instructions - Ferroli SKY C 11 B Instructions For Use Manual

Table. 2 - Table of faults
No burner ignition
Flame present signal with burner
off
Overtemperature protection activa-
tion
Intervention of the fume thermostat
(after intervention of the fume ther-
mostat, unit operation is restored
by turning the tap off and then on
again with thermostat cooled)
Display OFF

3. INSTALLER INSTRUCTIONS

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 under
these conditions are extremely harmful to health if dispersed in the domestic environ-
ment.
Make sure the room where the unit is to be installed meets all the conditions required by
the Current Regulations. In particular, this unit is an "open chamber" type and can only
be installed and operated in permanently ventilated rooms. An insufficient supply of com-
bustion air will affect its normal operation and the evacuation of fumes. Also, the fumes
forming under these conditions are extremely harmful to health if dispersed in the do-
mestic environment. OTHERWISE THERE MAY BE RISK OF SUFFOCATION AND IN-
TOXICATION OR EXPLOSION AND FIRE. The place of installation must be free of
dusts, flammable materials or objects, or corrosive gases.
Place the water heater as close as possible to the hot water faucets, near the sink, but
NEVER 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.
B
DO NOT FORGET TO PROVIDE AN AIR INLET OPENING (AS REQUIRED
BY CURRENT REGULATIONS) IN THE ROOM WHERE THE WATER HEAT-
ER IS INSTALLED. IF THE ABOVE INSTRUCTIONS ARE NOT OBSERVED
THERE MAY BE RISK OF SUFFOCATION OR POISONING DUE TO GAS OR
FUMES ESCAPING.
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.
10
EN
Check the regular gas flow to
the boiler and that the air has
No gas
been eliminated from the
pipes
Check the wiring of the elec-
Ignition/detection electrode trode and that it is correctly
fault positioned and free of any
deposits
Check and/or replace the
Faulty gas valve
gas valve
Check the ionisation elec-
Electrode fault
trode wiring
Check and/or replace the
Card fault
card
Check the correct positioning
Heating sensor damaged or
and operation of the heating
not 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 micros-
does not commutate witch
The demand microswitch (ref. Check/replace the micros-
B fig. 9) does not commutate witch
Check the connection or
Probe disconnected
replace the probe
), use suitably treated
3
cod. 3541C705 - Rev. 01 - 01/2018
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.
3.5 Fume duct
B
THE BOILER MUST BE INSTALLED IN PLACES THAT MEET THE FUNDA-
MENTAL REQUIREMENTS FOR VENTILATION. OTHERWISE THERE IS A
DANGER OF SUFFOCATION OR INTOXICATION.
READ THE INSTALLATION AND MAINTENANCE INSTRUCTIONS BE-
FORE INSTALLING THE UNIT.
ALSO FOLLOW THE DESIGN INSTRUCTIONS.
The diameter of the flue connection pipe must not be less than that of the connection 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 complied with regarding the
sizes and installation of the flues and connection pipe.
B
The water heater has a safety device (fume thermostat) that stops its operation
in case of poor draft or obstruction of the flue. This device must never be tam-
pered with or deactivated.

4. SERVICE AND MAINTENANCE

B
All adjustment, commissioning and periodic checking operations described be-
low must only be carried out by Qualified Personnel (meeting the professional
technical requirements prescribed by the current regulations).
FERROLI declines any liability for damage and/or injury caused by unqualified
and unauthorized persons tampering with the unit.
ATTENTION: ALL COMPONENTS DAMAGED DURING CONVERSION OP-
ERATIONS MUST BE REPLACED.
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.
SKY C B
fig. 5
fig. 6