6
GENERAL
1.3 Description of the appliance
RTC stainless steel boilers are triple ue pass, condensing boil-
ers for installation in a boiler room. They are designed for cen-
tral heating purposes but can also produce domestic hot water in
conjunction with a suitable storage cylinder.
All parts that come into contact with the combustion gases are
made from titanium stabilised stainless steel to ensure maximum
resistance to the corrosive action of acid condensation.
The boiler has been designed with the combustion chamber at
the top and the smooth pipe tube bundle at the bottom to op-
timise heat exchange and energy efciency and to maximise the
condensing effect.
The boiler has a high total water content which is differentially
distributed between its top and bottom sections. This allows out-
going water to reach the set temperature quickly while maintain-
ing the condensing effect and the water heating time around the
tube bundle for as long as possible.
RTC boilers feature low pressure combustion chambers for a
smoother burner action, and temperature-resistant, stainless
steel turbulators inside the tube bundle for maximum burner ef-
ciency.
The boiler body is thoroughly insulated with a layer of high density
glass wool.
The boiler casing is made from painted steel sheet.
The boiler's front door and ue gas chamber can be opened com-
pletely to facilitate inspection, maintenance and cleaning of in-
ternal parts and to speed up servicing in general.
The front door can open in either direction and can be opened
without removing the burner. The door comes tted with hinges
on the right, but these can be reversed if necessary to suit indi-
vidual installations.
1.4 Identication
The products are identied by:
2
Gross output
Net IBR rating
Certified by
RIEL
_____________________
LO S.p.A. (ITALY)
EV OBA
FRONT
_____________________
MINIMUM CLEARANCES TO COMBUSTIBLE CONSTRUCTION
FOR INSTALLATION ON NON COMBUSTIBLE FLOORS ONLY
ALL OF THE INSTRUCTIONS MUST BE FOLLOWED EXACTLY
_____________________
_____________________
_____________________
_____________________
SIDES
A ND RE AR
DRAFT HOOD
VENT CONNECTO R
BAROMETRIC DAMPER
4
” ( )
r
kW
Mbtu/hr
Mbtu/h
CHIMNEY CONNECTOR
Mo
____
del
bar kPa psi
° F° C
m
kg/h lb/hr
Mbtu/hr
kW
gph=xaM hpg
kW /
kW
MAWP Water
Maximum water temp.
Heating surface
Minimum relief valve capacity
Electrical rating (burner)
SERIAL NUMBER
mm
)
mm
18” (457
mm
)
Less than 12 Amperes
Min. & Max. input gas:
18” (457
mm
)
R
2
6
”
(
1
5
2
610
::rof erusserP telnI
Design Manifold Pressure for: NG ___ "
wc to
___ "wc or LP ___"wc to ___ "wc
SQ FT
NG ___ "
wc to
___ "wc or LP ___"wc to ___ "wc
Min =
Min. & Max. input oil: Min =
Max =
/
Mbtu/h
r
Year built:
________
_________
Approved for use with Natural Gas (NG), Liquid Petroleum Gas (LPG), and/or
fuel oil not heavier than # 2 per ASTM D396.
Consult the Installation Manual for approved boiler and burner combinations.
,
Data plate
This lists the technical specications and performance of the
product. This is supplied inside the document bag and MUST BE
APPLIED to the boiler by the installer on completion of instal-
lation. If you damage or lose this label, order a replacement
immediately from Technical Assistance Service.
9
If these plates or any other means of clearly identifying the
product are defaced, removed or lost, proper installation and
servicing may be rendered difcult.
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