6
GENERAL
RTQ 3S
r
steel boilers are high efficiency boilers
with horizontal, flame reversal combustion chambers and
concentrically arranged flue gas pipes. They are desig-
ned for central heating and, when used in conjunction
with a suitable storage cylinder, for domestic hot water
production too.
Because they operate at low pressure, they provide a
gradual heating action without thermal shock.
The most important technical features of these boilers are:
- The combustion chamber and heat exchange system
are specially designed and shaped to achieve the
best possible volume ratio.
- Only top quality materials are used to ensure a long
working life.
Stainless steel turbulators inside the flue gas pipes esta-
blish an ideal pressure inside the combustion chamber
and an ideal flue gas temperature. Evenly distributed
thermal load optimises the efficiency of the boiler-burner
system.
The boiler body is thoroughly insulated with a layer of
high density glass wool.
The boiler’s front door and the flue gas box can be ope-
ned completely to facilitate the inspection, maintenance
and cleaning of internal parts and to speed up servicing
in general.
The front door can open in either direction, even without
removing the burner.
Max. permissible return temperature with a gas burner:
50-55°C.
Max. permissible return temperature with a fuel oil burner:
37°C.
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2
1
4
5
14
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10
11
12
13
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9
RTQ 91 3S
1 - Burner
2 - Flame inspection window
3 - Door
4 - Casing
5 - Flue gas pipes
6 - Instrument bulb/sensor sockets
7 - Central heating flow
8 - Turbulators
9 - Combustion chamber
10 - Flue gas exhaust
11 - Flue gas box
12 - Inspection window
13 - Condensate drain
14 - Central heating return
MODELS UP TO 400 KW USED WITH FUEL OIL BURNERS CONFORM TO THE ENERGY-RELATED PRODUCTS
DIRECTIVE 2009/125/EC AND TO THE EU DELEGATED REGULATION 813/2013
Product description
PRODUCT DESCRIPTION
