GENERAL
6
RESIDENCE COLONNA CONDENS
boilers are high
efficiency, low temperature boilers for the production
of hot water for central heating and domestic hot water
systems. They incorporate a 130 litre storage cylinder.
RESIDENCE COLONNA CONDENS
boilers incorporate
a low water content, low pressure drop, compact, mono-
bloc, aluminium heat exchanger, and a premixed micro-
flame burner controlled by an electronic control panel,
all enclosed within a robust free-standing casing. They
feature sealed combustion chambers and, depending on
what flue accessories are fitted, can be classed as B23P,
B53P, C13, C23, C33, C43, C53, C63 or C83 appliances.
The fan extracts flue gases and aspirates comburent
air from outdoors, and is continuously controlled by the
electronic control card.
The characteristics of the heat exchanger and burner
ensure an excellent level of performance.
-
Ionisation flame control device
for shutting off gas
supply in case of flame failure.
-
Water pressure switch
to prevent ignition in case of
low water pressure (with error display).
-
Maximum temperature thermostat
to detect overhe-
ating and ensure the safety of the entire system (with
error display requiring reset by OFF-RESET button).
-
Flue gas temperature sensor
to shut down the burner
if flue gas temperature exceeds the safety threshold.
-
Flue gas venting safety system
incorporated in the
pneumatic functioning system of the gas valve.
-
Overtemperature diagnosis
with double sensor on
central heating flow and return (temperature threshold
85°C).
-
3 bar
central heating circuit
safety valve
.
-
8 bar
domestic hot water circuit
safety valve
.
-
Circulation diagnosis
by comparison of readings of
central heating flow and return temperature sensors.
The combustion chamber and the heat exchange area
are designed to keep temperature low over the bur-
ner surface, thus minimising emissions, maximising
combustion efficiency and improving ignition reliability.
RESIDENCE COLONNA CONDENS
boilers come com-
plete with safety valves, vent and bleed valve, expansion
vessels, drain cocks, system fill cock and pumps for the
central heating circuit, storage cylinder.
More than one high or low temperature zone can be hea-
ted, with the addition of the relevant multi-zone accesso-
ries. See the
r
catalogue for details.
b
The intervention of a safety device indicates a
potentially dangerous malfunction in the system,
and means that you must contact
r
’s Technical
Assistance Service immediately.
a
Never start the boiler up even for a short period if
the safety devices are not functioning correctly or
have been tampered with.
b
Safety devices must only be replaced by
r
’s
Technical Assistance Service using original spare
parts.
Always check that the boiler is functioning correctly after
any repairs.
RESIDENCE COLONNA CONDENS
boilers are equipped with the following main safety devices:
PRODUCT DESCRIPTION
SAFETY DEVICES
