BRAHMA TC340 Manual

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)
14698_r00
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
"cascade" applications
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;
with additional TC340 devices for
(OpenTherm™ communication
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