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The boiler is equipped with an integrated gas atmospheric burner.
All models are equipped with electronic ignition and ionisation flame sensing device.
The following models are available:
-
CTN 24, 28
: open chamber, natural draught boiler with electronic ignition for heating and instantaneous DHW supply (23.1-27.4 kW);
-
RTN 24, 28
: open chamber, natural draught boiler with electronic ignition for heating only (23.1-27.4 kW);
-
CTFS 24, 28 ,32
: sealed chamber, forced draught boiler with electronic ignition for heating and instantaneous DHW supply (23.7-28.6-30.8 kW);
-
RTFS 24, 28, 32
: sealed chamber, forced draught boiler with electronic ignition for heating only (23.7-28.6-30.8 kW);
The boilers meet local applicable Directives enforced in the country of destination, which are stated on their rating plate.
Installation in any other country may be a source of danger for people, animals and property.
The key technical features of the boilers are listed below.
Operating features
- CH electronic flame modulation with timer-controlled rising ramp (60
seconds, adjustable).
- Electronic flame modulation in DHW mode (CTFS / CTN; RTN / RTFS
with external water cylinder - optional).
- DHW priority function (CTFS / CTN; RTN / RTFS with external water
cylinder - optional).
- Flow anti-freeze function: ON 5°C; OFF 30°C or after 15 minutes of
operation if CH temperature > 5 °C.
- DHW freeze protection function (CTFS / CTN): ON 5°C; OFF 10 °C or
after 15 minutes of operation if DHW temperature > 5 °C.
- Water cylinder anti-freeze function (RTN / RTFS + optional external
water cylinder with NTC probe): ON 5°C; OFF 10 °C or after 15 minutes of
operation if water cylinder temperature > 5 °C.
- Timer-controlled flue cleaning function: 15 minutes.
- Anti-legionaries disease function (RTN / RTFS + external water cylinder
- optional);
- CH Maximum heat input parameter adjustment.
- Ignition heat input adjustment parameter.
- Ignition flame propagation function.
- CH thermostat timer: 240 seconds (adjustable).
- Heating pump post-circulation function in CH, anti-freeze and flue
cleaning modes: 30 seconds (adjustable).
- DHW post-circulation function (CTFS / CTN; RTN / RTFS with external
water cylinder - optional): 30 seconds.
- Post-circulation function for heating temperature > 78 °C: 30 seconds.
- Post-ventilation function after working: 10 seconds.
- Post-ventilation function for CH temperature > 95°C.
- Circulation pump and deviating valve anti shut-down function: 30
seconds of operation after 24 hours of inactivity.
- Ready for connection to an ambient thermostat.
- Ready for operation with an external probe (optional, supplied by the
manufacturer).
- Ready for operation with an OpenTherm remote control (optional,
supplied by the manufacturer).
- Ready for operation with a module for different temperature zones.
- Ready for integration with solar panels.
- Anti- water hammer function: can be set from 0 to 3 seconds through
parameter
P15
.
User interface
- Touch interface with built-in LCD to display and control boiler
operating condition: OFF, RESET, WINTER, SUMMER and CH ONLY.
- CH water temperature regulator: 35-78°C.
- DHW water temperature regulator (CTN / CTFS): 35-57 °C.
Manufacturing characteristics
- IPX5D electrically protected control panel.
- Integrated, modulating electronic safety board.
- Electronic start-up with built-in igniter and ionisation flame detection.
- Stainless steel, atmospheric burner that can run on several gases.
- Mono-thermal, high performance, copper heat exchanger.
- Twin shutter modulating gas valve.
- 3-speed circulation pump with built-in air purging device.
- Heating circuit pressure sensor.
- CH temperature probe (all models) and DHW temperature probe
(CTFS / CTN).
- Flue gas thermostat (CTN / RTN).
- Air pressure switch (CTFS / RTFS).
- Integrated, automatic by-pass.
- 7 litre expansion vessel.
- Filler cock (CTN / CTFS) and drain cock (all models).
- Stainless steel plate DHW heat exchanger (CTFS / CTN).
- Motorised deviating valve (CTFS / CTN).
- DHW priority flow switch (CTN / CTFS).
Summary of Contents for FORMENTERA CTFS 32
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