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DIGITAL TEMPERATURE
ADJUSTMENT SYSTEMS
Type TC340
DIGITAL IGNITION AND FLAME CONTROL
SYSTEMS FOR HOT AIR GENERATORS (TYPE
TC340A – TC340P) AND FOR MODULATING
PREMIX BURNERS (TYPE TC340P1)
DESCRIPTION
These systems are specifically designed for safety cycle control
and temperature adjustment in hot air generators equipped with
automatic-ignition fan-assisted gas burners and in modulating
premix burners.
GENERAL FEATURES
The systems are provided with the following important features:
−
compliance with EN 298:2003-09 (European standard for
automatic gas burner control and flame monitoring systems);
−
CE approval according to Gas Appliance Directive 90/396/EEC
and following amendments (Directive 93/68/EEC);
−
suitable for both phase-phase and phase-neutral power supply
systems;
−
non-polarized flame signal amplifier (the power supply polarity
may not be respected even in case of a phase-phase power
supply network);
−
control of the hot air convector blower (FAN) by means of a
phase-cut driver;
−
control of the burner motor by means of a phase-cut driver (for
fan-assisted gas burner appliances) or through a PWM signal
(for premix gas burner appliances equipped with brushless fan
with integrated management electronics);
−
two independent safety contacts for driving the EV1 main
solenoid gas valve;
−
inbuilt capacitive-discharge ignition transformer (version for fan-
assisted appliances);
−
output for the control of an auxiliary electronic ignition
transformer;
−
prearranged for the control of the EV2 second valve stage by
means of two independent contacts taking the power supply
from the EV1 first valve stage (version for fan-assisted
appliances);
−
burner power modulation by means of a current modulator
(version for fan-assisted appliances) or through a PWM signal
(version for premix appliances);
−
possible interfacing with a BRAHMA digital chronothermostat
type ENCRONO GA1 through OpenTherm™ communication
protocol, or with a power-free contact room thermostat;
−
possible interfacing with additional TC340 devices for
“cascade"
applications
(OpenTherm™
communication
protocol);
−
summer ventilation function (only in connection with BRAHMA
chronothermostat type ENCRONO GA1);
−
control of a BRAHMA double NTC temperature probe type
ST16 with outlet air temperature adjustment and safety
functions;
−
control of a BRAHMA double NTC temperature probe type
ST08 with outlet air temperature adjustment functions;
−
possible control of a safety thermostat;
−
prearranged to control a BRAHMA NTC temperature probe
type ST07 with room or outside temperature adjustment
functions;
−
possible connection to a fire damper contact (optional);
−
possible application in modulating premix burners equipped
with three-point adjuster or adjustment thermostat;
−
possible application in appliances provided with 0÷10V
analogue signal adjustment (e.g. PLC);
−
on-board manual reset push-button;
−
operation status and failure signalling by a two-colour LED;
