Siabs UFO EB/08 User manual

SIABS S.r.l. – ITALY Phone [phone] E-mail [email protected]
via Del Lavoro, 7 Fax [phone] Web site www.siabs.com
20010 – Casorezzo (MILAN)
Infra-red Gas Heaters
MANUAL for INSTALLATION,
RUNNING and MAINTENANCE
Models: UFO EB /08 and UFO M /08
Version “UFO /08”

Manu_ENG_UFO_ rev. 0_04_2012 pag. 2
CONTENT
General instruction 3
For Your safety 4
Warranty terms 4
Labels 5
. plate with technical data 5
. packing label 5
Technical data 6
. appliances version UFO EB/08 (electronic start-up, two-stages) 6
. appliances version UFO M/08 (manual start-up, on-off) 6
Installation 7 to 15
. ventilation 7
. positioning 8
. handling 8
. MINIMUM height of installation (for people comfort) 9
. MINIMUM distances (from flammable surfaces) 9
. assembling 10
. connection to GAS supply 11
. connection to ELECTRIC feeding 12
. SIT control unit, TWO-STAGE version 13 and 14
. SIT control unit, wiring diagram, TWO-STAGE version 15
Put in operation and First Start-up 16 to 19
. appliances version UFO EB/08 (electronic start-up, two-stages) 17 and 18
. appliances version UFO M/08 (manual start-up, on-off) 19
Maintenance and Annual Check 20 to 22
. ordinary maintenance (suggestions) 20
. nozzle replacement 21
. trouble shooting 22
. serial number (bars code) 22
SPARE-PARTS, suggested list 22
Decommissioning and disposal (norms for user) 23
CE certificate 24
Service sheet 25

Manu_ENG_UFO_ rev. 0_04_2012 pag. 3
GENERAL INSTRUCTIONS for INSTALLER,
USER and MAINTENANCE PERSONNEL
Thank you for your preference and trust granted! SIABS is pleased to have You among
his Customers; our appliances are designed and manufactured to the most modern and
rational processing systems and we do think that their use will be fully satisfactory.
To keep appliances perfectly working and safe, time passing, we invite you to read and
follow the instructions of this handbook and commit all installation and maintenance
(ordinary and extraordinary) operations only to skilled personnel, with specific
technical skills in the field of components of heating, preferably to SIABS authorized Service
Centre.
For the INSTALLER:
-read carefully the warnings in the manual before performing any operation
as they provide important information concerning the safety of installation, use and
the necessary maintenance operations to be performed
-this manual is integral and essential part of the product and must be delivered to
the user; retain it carefully for further consultations
-in case of non-compliance with the following instructions, the warranty
covering the product(s) will be null and void
-BEFORE THE INSTALLATION, verify that local gas distribution (type of gas and
pressure) and appliance settings are compatible
-appliance must be installed only in premises with adequate ventilation
-installation should be done in accordance with the Regulations in force in the
country of destination, to the state of art, following instructions by the Manufacturer
-incorrect installation can cause damage to people, animals and things; the
Manufacturer doesn’t accept any contractual and extra-contractual liability in tort
and contract for damages caused by errors in installation and use
-use only original accessories and modification kits
-after you have removed all items from packing box, make sure that all
components have been included and their integrity, in case of doubt not use
the appliance and contact the Manufacturer; elements of packaging are potentially
dangerous: therefore should not be left within the reach of children and must be
disposed according to regulations in force
-before any cleaning or maintenance operation, wait until the appliance is cold,
disconnect it from the electricity supply and bring the fuel shut-off valve in
the closed position
For the USER and OWNER of the plant:
-this manual is integral and essential part of the product and must be delivered to
the user; retain it carefully for further consultations
-in case of non-compliance with the following instructions, the warranty
covering the product(s) will be null and void
-use only original accessories and modification kits
-in case of failure and/or malfunction of the appliance, turn it off refraining from any
attempt to repair or direct intervention; contact SIABS authorized Service
Centre
-when you decide to stop using the appliance, for DISPOSAL or RESALE, you will
have to render harmless all parties which can be a source of potential danger; the
technical manual is integral and essential part of the product: it must be
preserved and accompany the appliance in case of property change, so that
it can be consulted by the new user and / or maintenance staff

Manu_ENG_UFO_ rev. 0_04_2012 pag. 4
FOR YOUR SAFETY
IMPORTANT: appliances MUST NOT be used in domestic environments. This appliance
will be devoted only to the use for which it was expressly provided, all other uses will be
considered improper and therefore dangerous.
IMPORTANT: appliances MUST NOT be used in ambient with flammable materials,
liquids or vapours: non-compliance with these requirements may be cause of death, injury
to persons or damage to things.
Warranty
SIABS guarantees its products, whether installed by authorized personnel, for a period of 24
months from the invoice date. The warranty does not cover the components supplied by third
parties, these are subject to the conditions of the original warranty.
The guarantee is only the free supply on Ex-Works basis, of parts with manufacturing or
workmanship defects.
The guarantee does not cover problems due to carelessness, incorrect setting, misuse of the
appliance or fortuitous accidents, and not dependent on imperfection processing or defective
materials, and those due to dismantling or changes without prior authorization from SIABS.
The correct functioning of the appliances depends on a proper installation and start-up. Failure
to comply with these rules immediately involves the decay of the guarantee, and therefore of
responsibility by the manufacturer.
In case of gas smell: DO NOT operate the heating plant, vent the ambient,
DO NOT start apparatus or electric switches; contact the installer and gas
supply company and follow scrupulously their instruction

Manu_ENG_UFO_ rev. 0_04_2012 pag. 5
Plate label
On each unit you will find a plate with technical data – do not remove – placed on the cover
of the gas group.
Apparatus type A1, gas category II 2H3P
Plate label (f.e.: appliance UFO E B/08, electronic start-up, version two-stages, G20 gas)
Essential features of the appliance are given on the packing label, outside on the packing box.

Manu_ENG_UFO_ rev. 0_04_2012 pag. 6
TECHNICAL DATA
Appliance model UFO EB /08 UFO M /08
Electric feeding 230 Volt - 1phase - 50 Hz NO
MAX feeding pressure (mbar) 50,0 50,0
Gas group nr. 1 1
Gas connection 1 x 3/8" 1 x 3/8"
Absorbed power (Watt) 24 NO
NOx class 4 4
Weight (kg) 10 10
Cover diameter (mm) 800 800
Height (mm) 650 650
Remote control (mm) option option
GAS G20
Heat input MAX (Hs) (kW) 9,4 9,4
Heat input MAX (Hi) (kW) 8,5 8,5
Heat input MIN (Hs) (kW) 7,1 -
Heat input MIN (Hi) (kW) 6,4 -
GAS supply pressure (mbar) 20,0 20,0
NOZZLE pressure MAX (mbar) 15,0 15,0
NOZZLE pressure MIN (mbar) 9,0 -
Gas consumption MAX
(
Sm3
/
h
)
0,90 0,9
Gas consumption MIN
(
Sm3
/
h
)
0,68 -
Nozzle diamete
r
(mm) 2,30 2,3
GAS G30
Heat input MAX (Hs) (kW) 10,8 10,8
Heat input MAX (Hi) (kW) 10,0 10,0
Heat input MIN (Hs) (kW) 8,1 -
Heat input MIN (Hi) (kW) 7,5 -
GAS supply pressure (mbar) 30,0 20,0
NOZZLE pressure MAX (mbar) 27,7 27,7
NOZZLE pressure MIN (mbar) 15,5 -
Gas consumption MAX (kg/h) 0,79 0,8
Gas consumption MIN (kg/h) 0,59 -
Nozzle diamete
r
(mm) 1,60 1,6
GAS G31
Heat input MAX (Hs) (kW) 10,9 10,8
Heat input MAX (Hi) (kW) 10,0 10,0
Heat input MIN (Hs) (kW) 8,2 -
Heat input MIN (Hi) (kW) 7,5 -
GAS supply pressure (mbar) 37,0 37,0
NOZZLE pressure MAX (mbar) 35,9 35,9
NOZZLE pressure MIN (mbar) 20,0 -
Gas consumption MAX (kg/h) 0,78 0,8
Gas consumption MIN (kg/h) 0,58 -
Nozzle diamete
r
(mm) 1,60 1,6
IMPORTANT: "GAS supply pressure", defined as the dynamic pressure of the circuit,
or part of the circuit downstream of the pressure reducer, with all the appliances running,
and must be detected in this condition. With lower pressure difficulties in start-up may
occur.

Manu_ENG_UFO_ rev. 0_04_2012 pag. 7
INSTALLATION
Ventilation of the ambient
The unit leaves the combustion products into the environment in which it is used (appliance
type A1). It is therefore necessary to ensure ventilation and air changes of the premises
in which the appliance is installed, realizing appropriate air outlet openings on the
perimeter walls of the same, or creating a system of mechanical ventilation. To ensure a
sufficient air change, the flow of air needed can be calculated using the following equation (UNI
EN 13410):
Vtot = Qnb x L
Vtot air change flow rate in m3/h
Qnb total heating power installed in the premises in kW
L air change coefficient (must be 10 m3 /h / kW)
IMPORTANT: air change coefficient “L” to be used MUST NOT
be lower than 10 m3/h for each kW of installed power
For NO reason the appliance(s) can be installed:
in rooms smaller than 12 m³
in ambient used as residential ambient
where wind speed is higher than 2 m/s
Appliances must be installed in well-
ventilated and manned ambient, in
compliance with current legislation

Manu_ENG_UFO_ rev. 0_04_2012 pag. 8
Positioning
The appliance must be installed / suspended at ceiling (Picture 1). On top of the tube structure
is welded a plate (Picture 2) drilled to balance the weight of the appliance. On request, S hooks
and chains can be provided for hanging installation.
Picture 1
IMPORTANT: appliances must be installed in vertical position
Handling
During extraction of the appliances from package and for all operations of handling till final
place of installation, must NOT be used as lifting points the gas group (cover, gas valve, flame
control), the cover, the flexible gas pipe and the electric cable.
Appliances must be taken at the installation point / height using the tube structure or the
drilled plate, welded on the upper part of the tube itself (Picture 2): all other parts of the
appliances are NOT designed to withstand its weight.
Picture 2
YES

Manu_ENG_UFO_ rev. 0_04_2012 pag. 9
MINIMUM height of installation (for people comfort)
Indicative heights for the installation of appliances are as follows:
MODEL HEIGHT of INSTALLATION (mt)
MIN MAX
UFO EB / 08 2,5 3,5
(electronic start-up, TWO-STAGES version)
UFO M / 08 2,0 2,5
(manual start-up, ON-OFF version)
Height “MIN" means the minimum height at which the appliance should be installed so that
people who are in radiated zone, are not subject to excessive heat.
Quotes relate to installation with ambient temperature of 10 ÷ 12 °C; in case of ambient
with higher or lower temperatures the minimum height of installation must be reviewed;
consider a reduction of 5 % (for temperatures lower of approx. 5 ° C) or increase of 5 % (for
temperatures higher of approx. 5 ° C).
Above MINIMUM heights of installation are indicative, consult us each case to select the
most advisable unit and the best height of installation (mostly for limit values).
MINIMUM distances from flammable surfaces
IMPORTANT: flammable materials inside the radiation could begin to burn and cause fires.
Minimum distances of installation must be respected between the heating surface of the
appliances and the adjacent walls, inside the area of radiation and outside, if they are
not protected against radiation or are flammable materials.
The MINIMUM distances are as follows:
MODEL MINIMUM distance (mt) between appliance and ...
ceiling floo
r
front side
UFO EB / 08 and UFO M /08 0,7 2,0 1,0 1,0
NOTE – contact us in case of different distances or special cases
SURFACES CLOSE to APPLIANCES MUST BE DONE IN MATERIAL of
CLASS 'A0' with respect TO FIRE RESPONSE (NOT COMBUSTIBLE and
NOT FLAMMABLE) and with DEGREE of RESISTANCE TO FIRE EQUAL
or MORE THAN "REI 90"

Manu_ENG_UFO_ rev. 0_04_2012 pag. 10
ASSEMBLING
Open the packing box and take out the appliance (Picture 1) and the aluminium cover (Picture
2).
Picture1 Picture2
Remove the nut and washer from the M8 pin, fixed on the upper part of the burner (Picture 3).
Picture 3
Place the cover (Picture 4); place the washer on the cover and use a CH13spanner to tighten
the M8 nut to fix the cover. (Picture 5).
Picture 4 Picture 5
IMPORTANT: once installation is finished, check that power supply cable is not in contact with
the aluminium cover (warm while appliance is running!!).

Manu_ENG_UFO_ rev. 0_04_2012 pag. 11
Connection to GAS supply
IMPORTANT: hydraulic connection of the appliances to the gas distribution net must be made
according to information given in this technical book exclusively by professionally qualified
staff.
The appliances are supplied according to the type of gas chosen, and then before making the
connection to the power network of gas, make sure that the gas used and pressure of gas
circuit correspond to what is shown on the data plate label of the unit. Before
connection to the gas pipeline, make sure that the pipes are properly cleaned and
produced in accordance with regulations in force in the country of installation.
NOTICE: provide a fuel interception tap close to the appliance, and with easily accessible
position; make the connection between the appliance and the gas network using an
approved steel flexible pipe.
IMPORTANT: "GAS supply pressure", defined as the dynamic pressure of the circuit,
or part of the circuit downstream of the pressure reducer, with all the appliances running,
and must be detected in this condition. With lower pressure difficulties in start-up may
occur.
Once the connection is made, in compliance with the rules in force in the country of
installation, a) verify the sealing of hydraulic pipes and gas connection to the unit, b) check
that the pressure is correct, c) make sure that the apparatus functions in the conditions for
which it was prepared.
UFO EB /08 = electronic start-up: gas connection is 3/8”. Appliances are equipped with
a multifunctional group comprising: double seat valve fitted with pressure stabilizer and
integrated flame control. The stabilizer accepts a maximum inlet pressure of 50 mbar
and the valve is equipped with a pressure intake, to measure and control incoming and
outgoing pressures.
UFO M /08 = manual start-up: gas connection is 3/8”. Appliances are equipped with
valve tap, pressure stabilizer for maximum inlet pressure of 50 mbar with pressure
intake at nozzle.
IMPORTANT: all appliances are supplied already tested and set to the properly operating
pressure; DO NOT remove seal on the pressure regulator (R): expiring of guarantee!
Feeding gas pipeline must be kept at a distance of at least 1 m from the zone
of discharge of the combustion products and must not be exposed to direct
irradiation of appliances

Manu_ENG_UFO_ rev. 0_04_2012 pag. 12
Connection to ELECTRIC feeding
(for appliance UFO EB /08 with electronic start-up)
IMPORTANT: the electrical connection of the equipment shall be made in accordance
with the directions given in this technical book exclusively by professionally qualified
personnel. The installation must be carried out in accordance with regulations in the
country of installation.
The appliance must be fed with 230 Volt / Single Phase / 50 Hz feeding. The control flame
mounted on gas valve has a plug/socket connection with security hook (picture 3). Mount a
bipolar switch upstream of the heater for switch-on and switch-off, so you can isolate it from
electric supply. Use this manual for the size of the power supply line, or refer to the data given
in the plate label of the heater. In any case, use a cable with minimum section 4x1.5mm2
(TWO-STAGE version).
The wiring diagram is shown on page 15 of this manual.
For the electrical connection unlock the plug and unscrew its case; connect a cable according
to the indications given on the terminal plug, namely:
L1 phase wire
Nneutral wire
earth wire
L2 modulator command for two-stage gas valve (if provided)
L3 signal for burner block (if provided)
IMPORTANT: it is essential for the smooth functioning of the appliances, to respect the
Phase / Neutral polarity, with that indicated on the power connector.
IMPORTANT: it is also essential for the smooth functioning of the appliances, and for the
safety of the user, efficient plant grounding, executed according to existing regulations.
Under no circumstances you can use the gas connection pipeline as grounding of equipment.

Manu_ENG_UFO_ rev. 0_04_2012 pag. 13
NOTE for “SIT” TWO-STAGE gas valve
IMPORTANT:
- for this version, a specific switch for pressure modulator feeding must be placed in the
main electric switchboard
modulator fed: HIGH pressure running
modulator NOT fed: LOW pressure running
- start-up of the appliance must always take place with the modulator fed (HIGH
pressure running)
- you will find the data (heat input, pressure and gas flow rate) referring to the
appliances with TWO-STAGE version, in the tables at page 6 of this manual.
N.B. – MINIMUM heating capacity = feed L1 + N
– MAXIMUM heating capacity = feed L1 + L2 + N
You will find the data (heat input, pressure and gas flow rate) referring to the appliances with
TWO-STAGE version, in the tables at page 6 of this manual.
The TWO-STAGE version allows:
save on gas consumption
better comfort condition for people
lower number of start-up / switch-off of the heater
power reserve for particularly cold winters

Manu_ENG_UFO_ rev. 0_04_2012 pag. 14
Setting of the pressure
Unscrew the screw of the PO pressure intake of the gas valve before the nozzle (pictures 1.A
and 1.B), and connect a water column manometer. Feed the modulator and take out the
yellow tap of the pressure regulator. Act, as shown in picture 2, on the CH10 screw for setting
of the maximum pressure, till you get the required pressure (turn clockwise to increase
and counter clockwise to decrease). Take out tension at the pressure modulator, and with
a screw-driver act on the inner screw for minimum setting (picture 3) till you get the required
pressure (turn clockwise to increase and counter clockwise to decrease).
Picture 1.A Picture 1.B
Picture 2 Picture 3

Manu_ENG_UFO_ rev. 0_04_2012 pag. 15
WIRING DIAGRAM, “SIT” control unit TWO-STAGE

Manu_ENG_UFO_ rev. 0_04_2012 pag. 16
PUT IN OPERATION and FIRST START-UP
(for all the models)
When you first start the appliances is important to make some preliminary checks to
ensure its proper running; operations listed below are considered essential:
make sure there are no losses in the gas line and that is properly sized
check that the pressure and type of gas used comply with the data on the plate
of the characteristics of the appliance
check the correct mounting of gas group, gas valve and flame control, (only for
appliance UFO EB /08, with electronic start-up)
check that the power electric line has been correctly sized, which has been respected
phase - neutral polarity and that the cable grounding is connected (only for appliance
UFO EB /08, with electronic start-up)
make sure the mechanical installation (supports) of the appliance have been properly
carried out and that the connections bolts are tight
use only steel materials, since heat is transferred from appliances to supports

Manu_ENG_UFO_ rev. 0_04_2012 pag. 17
Put in operation and first start-up for models with
ELECTRONIC START-UP (appliance UFO EB /08)
For appliances equipped with electronic system of start-up and flame control, start-up
sequence includes the following phases:
giving tension to the appliances, ignition electrode begins sparkling, and the gas valve
opens
the sparkling electrode ends after 30 seconds
in the case has not been detected the presence of flame, control flame goes into block
after 30 seconds; for re-start it is necessary to remove tension for a period of not less
than 20 seconds: after that period of time, the start-up sequence can be repeated; if
the heater continues going into block, refer to the section 'Maintenance' of this manual
switch-off of the appliance is done by taking out power supply to control unit
IMPORTANT: in case of failure at time of first start-up, pressure settings have to be
checked, acting on pressure intakes
Only in case of maintenance, following instruction of qualified SIABS personnel, pressure
settings can be modified using the following procedure:
unscrew the 4 fixing screws of gas group cover (Picture 1), with a 8mm socket spanner
Picture 1 Picture 2
remove the seal on the cap of pressure regulator
unscrew the screw of intake pressure (Picture 2), upstream at the nozzle and connect a
suitable gauge, to check correct pressure during setting

Manu_ENG_UFO_ rev. 0_04_2012 pag. 18
remove the cap of pressure regulator (Picture 3) and act on the screw of adjustment
(Picture 4) till match up to the pressure gauge reading with that stated on plate label
(turn clockwise to increase and counter clockwise to decrease).
Picture 3 Picture 4
the new and correct nozzle pressure should be checked at intake pressure (Picture 5)
disconnect the pressure gauge and close the screw of intake pressure (Picture 6)
Picture 5 Picture 6
reassemble the cap of the regulator and place a new suitable seal (Picture 7)
mount the gas group cover (Picture 8) and tight the 4 fixing screws
Picture 7 Picture 8

Manu_ENG_UFO_ rev. 0_04_2012 pag. 19
Put in operation and first start-up for models with
MANUAL START-UP (appliance UFO M /08)
For appliances with manual start-up, start-up sequence includes the following phases:
push button of gas valve (Picture 1)
push simultaneously the button of piezo-static starter till ignition takes place (Picture 2)
press the button of the valve about 10sec. or until the activation of the electromagnetic
part of the thermocouple
switch-off of the appliance is done by closing gas supply to the
Picture1 Picture2
IMPORTANT: in case of failure at time of first start-up, pressure settings have to be
checked, acting on pressure intakes
Only in case of maintenance, following instruction of qualified SIABS personnel, pressure
settings can be modified using the following procedure:
unscrew the screw of intake pressure, and connect a suitable gauge, to check correct
pressure during setting (Picture 3)
remove the cap of pressure regulator (Picture 3) and act on the screw of adjustment till
match up to the pressure gauge reading (Picture 4) with that stated on plate label
(turn clockwise to increase and counter clockwise to decrease).
disconnect the pressure gauge and close the screw of intake pressure
reassemble the cap of the regulator and place a new suitable seal
Picture3 Picture4

Manu_ENG_UFO_ rev. 0_04_2012 pag. 20
MAINTENANCE
Ordinary maintenance
An appropriate use of the appliances, plus their proper and regular maintenance are essential
to ensure better performance and longer working life.
At least once a year before the season of use, it is strongly advisable to perform an
intervention for control / inspection and cleaning:
visual inspection of radiant surface (metallic fibre)
cleaning of radiant surface with compressed air with LOW HUMIDITY at LOW PRESSURE
nozzle cleaning
electrodes cleaning, correct position and efficiency sparkling
check of keeping all the electrical connections
search for possible losses on the gas circuit and gas valve
check of gas pressure at nozzle
general control of all components of the appliance
control of openings and ventilation systems (natural and/or mechanical)
control of alarm signals, if any
If the appliances are installed in dusty environments is advisable to clean more frequently the
burners blowing compressed air with LOW HUMIDITY at LOW PRESSURE. In case the appliance
is running, shut it down and wait, before you blow, that it is cold.
Before making any maintenance, make sure that both the gas and the
power supply have been excluded, and that the apparatus is cold. For all
routine and / or extraordinary maintenance, contact only professionally qualified
staff, or rather a Technical Assistance Centre authorized by SIABS