Riello 20165080, Installation, Operation And Service Manual

Page: 6 / 56

6
GENERAL
1.3 Description of the appliance
RTC-80 stainless steel boilers are triple-pass, condensing boilers
for installation in a boiler room. While they are designed for cen-
tral heating purposes, they can also be used in conjunction with
a suitable plate exchanger and storage tank to produce domestic
hot water.
All parts that come into contact with the combustion gases are
made from high grade stainless steel (316Ti/316L) to ensure max-
imum resistance to the corrosive action of acidic condensation.
The boiler has been designed with the combustion chamber at
the top and the multi-pipe tube bundle (smooth pipes) at the
bottom to optimize heat transfer and energy efficiency and to
maximize the condensing effect.
The boiler has a high total water content allowing effective tem-
perature stratification between its top and bottom sections. This
allows outgoing water to reach the set temperature quickly while
maintaining the condensing effect and maximizing the water
heating dwell time around the tube bundle.
RTC-80 boilers feature a low back-pressure combustion chamber
for smoother burner operation, and low backpressure waterway
for reduced pump electrical consumption.
− High temperature resistant stainless steel turbulators are
utilized inside the tube bundle for maximum combustion
efficiency.
− The boiler body is thoroughly insulated with a layer of high
density glass wool.
− The external panelling is enamel painted and internally in-
sulated with an additional layer of high density glass wool.
− The boiler’s front door and the flue gas chamber can be
easily and completely opened to facilitate the inspection,
maintenance and cleaning of internal parts and to speed
up servicing in general.
− The hinged front door can open in either direction and can
be opened without removing the burner. The door is facto-
ry fitted with hinges on the left, but these can be field-re-
versed if necessary to suit individual installations.
1.4 Identification
The products are identified by:
2
Gross output
Net IBR rating
Certified by
RIEL
_____________________
LO S.p.A. (ITALY)
_____________________
E V O B A
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 = x a M h p g
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 ” (152
610
::r o f e r u s s e r P t el n I
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 specifications 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 your local R boiler representative.
9
NOTE : If these plates or any other means clearly identifying the
product are defaced, removed or lost, proper installation and
servicing may be rendered difficult.